/* roulang page: index */
:root {
            --primary: #FF6A00;
            --primary-light: #FF8C3A;
            --accent-a: #00E5CC;
            --accent-b: #7B2FBE;
            --accent-c: #FFB800;
            --bg-primary: #0D0B14;
            --bg-secondary: #16121F;
            --bg-tertiary: #1E1828;
            --text-primary: #F4F0F8;
            --text-secondary: #A89FB5;
            --text-muted: #6E6478;
            --border-orange: rgba(255, 106, 0, 0.18);
            --border-cyan: rgba(0, 229, 204, 0.15);
            --gradient-primary: linear-gradient(135deg, #FF6A00, #FFB800);
            --gradient-accent: linear-gradient(135deg, #00E5CC, #7B2FBE);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-default: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 48px rgba(255, 106, 0, 0.15);
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            --font-numeric: "DIN Alternate", "Bebas Neue", "Oswald", "Roboto Condensed", sans-serif;
            --nav-height: 72px;
            --nav-height-scrolled: 56px;
            --section-gap: 88px;
            --section-gap-mobile: 48px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: rgba(13, 11, 20, 0.55);
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
            transition: all var(--transition);
        }

        .site-header.scrolled {
            height: var(--nav-height-scrolled);
            background: #0D0B14;
            border-bottom: 1px solid rgba(255, 106, 0, 0.25);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: -0.3px;
            color: var(--text-primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--gradient-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.35);
            flex-shrink: 0;
        }

        .logo-text {
            white-space: nowrap;
        }

        .logo-text strong {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 6px;
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 1.5px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }

        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            transform: scaleX(1);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .search-btn {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
            font-size: 15px;
            background: rgba(255, 255, 255, 0.04);
        }

        .search-btn:hover {
            color: var(--primary);
            border-color: var(--border-orange);
            background: rgba(255, 106, 0, 0.08);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: 8px;
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.3);
            transition: all var(--transition);
        }

        .header-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: 0 6px 24px rgba(255, 106, 0, 0.45);
        }

        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-primary);
            font-size: 20px;
            transition: all var(--transition);
            background: rgba(255, 255, 255, 0.04);
            align-items: center;
            justify-content: center;
        }

        .hamburger:hover {
            border-color: var(--border-orange);
            color: var(--primary);
        }

        /* 移动端导航抽屉 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 999;
            background: rgba(13, 11, 20, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 80px 24px 40px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

        .mobile-nav.open {
            display: flex;
        }

        .mobile-nav a {
            font-size: 16px;
            padding: 14px 20px;
            border-radius: 8px;
            font-weight: 500;
            color: var(--text-primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
        }

        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--primary);
            background: rgba(255, 106, 0, 0.08);
        }

        .mobile-nav .search-box {
            margin-top: 16px;
            display: flex;
            gap: 8px;
        }

        .mobile-nav .search-box input {
            flex: 1;
            padding: 12px 16px;
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 14px;
        }

        .mobile-nav .search-box input:focus {
            border-color: var(--primary);
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: calc(var(--nav-height) + 40px) 0 80px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 11, 20, 0.75) 0%, rgba(13, 11, 20, 0.85) 40%, rgba(13, 11, 20, 0.95) 100%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 75% 40%, rgba(255, 106, 0, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 20% 80%, rgba(0, 229, 204, 0.08) 0%, transparent 50%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--gradient-primary);
            color: #fff;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 700;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            box-shadow: 0 4px 20px rgba(255, 106, 0, 0.4);
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 4px 20px rgba(255, 106, 0, 0.4);
            }
            50% {
                box-shadow: 0 4px 32px rgba(255, 106, 0, 0.65);
            }
        }

        .hero-badge i {
            font-size: 12px;
        }

        .hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-primary);
            border-radius: 2px;
            opacity: 0.5;
        }

        .hero-subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 560px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(255, 106, 0, 0.35);
            transition: all var(--transition);
            border: none;
        }

        .btn-primary:hover {
            filter: brightness(1.12);
            box-shadow: 0 6px 32px rgba(255, 106, 0, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 24px;
            background: transparent;
            color: var(--accent-a);
            font-weight: 600;
            font-size: 15px;
            border-radius: 8px;
            border: 1.5px solid var(--accent-a);
            transition: all var(--transition);
        }

        .btn-secondary:hover {
            background: rgba(0, 229, 204, 0.1);
            border-color: var(--accent-a);
            box-shadow: 0 0 24px rgba(0, 229, 204, 0.25);
            color: var(--accent-a);
            transform: translateY(-2px);
        }

        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-a);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
        }

        .btn-text::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 1px;
            background: var(--accent-a);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }

        .btn-text:hover::after {
            transform: scaleX(1);
        }

        .btn-text i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .btn-text:hover i {
            transform: translateX(4px);
        }

        .hero-metrics {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-metric-card {
            background: rgba(22, 18, 31, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 106, 0, 0.2);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            min-width: 120px;
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
        }

        .hero-metric-card:hover {
            border-color: rgba(255, 106, 0, 0.4);
            box-shadow: var(--shadow-hover);
        }

        .hero-metric-value {
            font-family: var(--font-numeric);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-a);
            text-shadow: 0 0 24px rgba(0, 229, 204, 0.4);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .hero-metric-label {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
        }

        .hero-scroll {
            position: absolute;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            color: var(--text-muted);
            font-size: 24px;
            animation: scroll-bounce 2s ease-in-out infinite;
        }

        @keyframes scroll-bounce {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(8px);
            }
        }

        /* ========== Section 通用 ========== */
        section {
            padding: var(--section-gap) 0;
            position: relative;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 1px;
            margin-bottom: 10px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
            line-height: 1.3;
            color: var(--text-primary);
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 640px;
        }

        /* ========== 指标看板 ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .metric-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-orange);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: left;
            position: relative;
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-default);
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-primary);
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .metric-card:hover {
            border-color: rgba(255, 106, 0, 0.35);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .metric-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(255, 106, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 14px;
        }

        .metric-name {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .metric-value {
            font-family: var(--font-numeric);
            font-size: 42px;
            font-weight: 700;
            color: var(--accent-a);
            text-shadow: 0 0 24px rgba(0, 229, 204, 0.35);
            line-height: 1.15;
            margin-bottom: 8px;
            letter-spacing: -1px;
        }

        .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: #4CAF50;
            margin-bottom: 10px;
        }

        .metric-trend.down {
            color: #FF5252;
        }

        .metric-trend i {
            font-size: 11px;
        }

        .metric-bar {
            height: 4px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 2px;
            overflow: hidden;
            margin-top: 4px;
        }

        .metric-bar-fill {
            height: 100%;
            border-radius: 2px;
            background: var(--gradient-primary);
            transition: width 1s ease;
        }

        .metric-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-top: 10px;
        }

        /* ========== 服务矩阵 ========== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-orange);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-default);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 106, 0, 0.4);
            transform: translateY(-4px);
        }

        .service-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: 0;
            position: relative;
        }

        .service-card-body {
            padding: 20px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(255, 106, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            margin-bottom: 12px;
        }

        .service-card-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .service-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            flex: 1;
            margin-bottom: 14px;
        }

        .service-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-a);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: all var(--transition);
        }

        .service-card-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .service-card-link:hover {
            color: var(--primary);
        }

        .service-card-link:hover i {
            transform: translateX(4px);
        }

        /* ========== 焦点主题 ========== */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-md);
            padding: 22px;
            transition: all var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 14px;
            box-shadow: var(--shadow-default);
        }

        .topic-card:hover {
            border-color: rgba(0, 229, 204, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .topic-card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(0, 229, 204, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-a);
            font-size: 18px;
            flex-shrink: 0;
        }

        .topic-card-info h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .topic-card-info p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 结果对比 ========== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: stretch;
        }

        .compare-panel {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-orange);
            box-shadow: var(--shadow-default);
        }

        .compare-panel.muted {
            border-color: rgba(255, 255, 255, 0.08);
            background: var(--bg-tertiary);
            opacity: 0.8;
        }

        .compare-panel.strong {
            border-color: rgba(255, 106, 0, 0.4);
            border-left: 4px solid var(--primary);
            background: linear-gradient(180deg, rgba(255, 106, 0, 0.06) 0%, var(--bg-secondary) 100%);
        }

        .compare-panel h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .compare-panel.muted h4 {
            color: var(--text-muted);
        }

        .compare-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .compare-list li {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .compare-list li i {
            font-size: 13px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .compare-panel.muted .compare-list li i {
            color: var(--text-muted);
        }

        .compare-panel.strong .compare-list li i {
            color: var(--primary);
        }

        .compare-diff {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-family: var(--font-numeric);
            font-size: 18px;
            font-weight: 700;
            color: var(--accent-a);
            background: rgba(0, 229, 204, 0.08);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            margin-top: 16px;
            text-align: center;
        }

        /* ========== 深度内容1 ========== */
        .deep-content {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 48px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            box-shadow: var(--shadow-default);
            position: relative;
            overflow: hidden;
        }

        .deep-content::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            bottom: 0;
            width: 3px;
            background: var(--gradient-primary);
        }

        .deep-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
            letter-spacing: -0.2px;
        }

        .deep-content h4 {
            font-size: 17px;
            font-weight: 600;
            margin: 24px 0 10px;
            color: var(--text-primary);
        }

        .deep-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 2;
            margin-bottom: 14px;
            text-align: justify;
        }

        .deep-content blockquote {
            border-left: 3px solid var(--accent-a);
            background: rgba(0, 229, 204, 0.06);
            padding: 18px 24px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
            font-size: 15px;
            color: var(--text-primary);
            font-style: italic;
            line-height: 1.8;
        }

        .deep-data-card {
            display: inline-block;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-orange);
            border-radius: var(--radius-md);
            padding: 16px 24px;
            margin: 12px 0;
            text-align: center;
        }

        .deep-data-card .data-value {
            font-family: var(--font-numeric);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent-a);
            text-shadow: 0 0 20px rgba(0, 229, 204, 0.3);
            line-height: 1.2;
        }

        .deep-data-card .data-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== 排行列表 ========== */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: all var(--transition);
            box-shadow: var(--shadow-default);
        }

        .rank-item:hover {
            border-color: var(--border-orange);
            box-shadow: var(--shadow-hover);
            background: var(--bg-tertiary);
        }

        .rank-number {
            font-family: var(--font-numeric);
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            width: 48px;
            text-align: center;
            flex-shrink: 0;
            text-shadow: 0 0 16px rgba(255, 106, 0, 0.3);
        }

        .rank-number.top1 {
            color: var(--accent-c);
            text-shadow: 0 0 20px rgba(255, 184, 0, 0.5);
        }

        .rank-item-info {
            flex: 1;
        }

        .rank-item-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 3px;
        }

        .rank-item-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
        }

        .rank-item-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .rank-item-heat {
            font-family: var(--font-numeric);
            font-size: 22px;
            font-weight: 700;
            color: var(--accent-a);
            flex-shrink: 0;
        }

        /* ========== 新闻中心 ========== */
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 28px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
        }

        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
        }

        .news-item:hover {
            border-bottom-color: var(--border-orange);
        }

        .news-date {
            font-family: var(--font-numeric);
            font-size: 14px;
            color: var(--accent-b);
            font-weight: 600;
            flex-shrink: 0;
            width: 70px;
            letter-spacing: 0.5px;
            line-height: 1.5;
        }

        .news-content {
            flex: 1;
        }

        .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            transition: color var(--transition);
        }

        .news-title:hover {
            color: var(--primary);
        }

        .news-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .news-read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-a);
        }

        .news-sidebar {
            background: var(--bg-tertiary);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            height: fit-content;
            box-shadow: var(--shadow-default);
        }

        .news-sidebar h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-primary);
        }

        .news-sidebar-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-sidebar-list li {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: flex;
            gap: 8px;
        }

        .news-sidebar-list li::before {
            content: '→';
            color: var(--primary);
            flex-shrink: 0;
        }

        /* ========== 深度内容2 ========== */
        .deep-content-2 {
            background: var(--bg-primary);
            border-radius: var(--radius-lg);
            padding: 48px;
            border: 1px solid rgba(0, 229, 204, 0.1);
            box-shadow: var(--shadow-default);
            position: relative;
            overflow: hidden;
        }

        .deep-content-2::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(123, 47, 190, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .deep-content-2 h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
            letter-spacing: -0.2px;
        }

        .deep-content-2 h4 {
            font-size: 17px;
            font-weight: 600;
            margin: 24px 0 10px;
            color: var(--accent-a);
        }

        .deep-content-2 p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 2;
            margin-bottom: 14px;
            text-align: justify;
        }

        .deep-content-2 ul {
            list-style: none;
            margin: 14px 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .deep-content-2 ul li {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .deep-content-2 ul li::before {
            content: '✓';
            color: var(--accent-a);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .deep-content-2 .content-image {
            width: 100%;
            aspect-ratio: 16/7;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin: 20px 0;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        /* ========== 限时入口 ========== */
        .limited-entry {
            background: var(--gradient-primary);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            box-shadow: 0 8px 40px rgba(255, 106, 0, 0.3);
            position: relative;
            overflow: hidden;
        }

        .limited-entry::before {
            content: '';
            position: absolute;
            inset: 0;
            background: repeating-linear-gradient(45deg, transparent, transparent 20px, rgba(255, 255, 255, 0.03) 20px, rgba(255, 255, 255, 0.03) 40px);
            pointer-events: none;
        }

        .limited-entry-content {
            flex: 1;
            min-width: 240px;
            position: relative;
            z-index: 1;
        }

        .limited-entry-content h3 {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }

        .limited-entry-content p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
        }

        .countdown-timer {
            display: flex;
            gap: 12px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .countdown-block {
            text-align: center;
            background: rgba(0, 0, 0, 0.25);
            border-radius: 8px;
            padding: 10px 14px;
            min-width: 56px;
        }

        .countdown-number {
            font-family: var(--font-numeric);
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }

        .countdown-label {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 1px;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 14px 28px;
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
            transition: all var(--transition);
            position: relative;
            z-index: 1;
            white-space: nowrap;
            border: none;
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            color: var(--primary);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-default);
        }

        .faq-item:hover {
            border-color: var(--border-orange);
            background: var(--bg-tertiary);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            width: 100%;
            text-align: left;
            border: none;
            background: transparent;
            transition: all var(--transition);
            font-family: inherit;
        }

        .faq-question:hover {
            background: rgba(255, 106, 0, 0.08);
            color: var(--primary);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: all var(--transition);
            color: var(--text-secondary);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding-left: 12px;
            border-left: 2px solid var(--primary);
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            border: 1px solid var(--border-orange);
            box-shadow: var(--shadow-default);
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }

        .brand-intro-logo {
            width: 100px;
            height: 100px;
            border-radius: 20px;
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 40px;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 8px 32px rgba(255, 106, 0, 0.3);
        }

        .brand-intro-text {
            flex: 1;
            min-width: 260px;
        }

        .brand-intro-text h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .brand-intro-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.9;
            text-align: justify;
        }

        /* ========== 数据保障 ========== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .security-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-md);
            padding: 22px;
            text-align: center;
            transition: all var(--transition);
            box-shadow: var(--shadow-default);
        }

        .security-card:hover {
            border-color: rgba(0, 229, 204, 0.35);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .security-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(0, 229, 204, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-a);
            font-size: 20px;
            margin: 0 auto 12px;
        }

        .security-card h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .security-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 转化表单 ========== */
        .cta-form-section {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 48px;
            border: 1px solid rgba(0, 229, 204, 0.2);
            box-shadow: var(--shadow-default);
            position: relative;
            overflow: hidden;
        }

        .cta-form-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 229, 204, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-form-header {
            text-align: center;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }

        .cta-form-header h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .cta-form-header p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .form-card {
            background: var(--bg-tertiary);
            border-radius: var(--radius-lg);
            padding: 30px;
            border: 1px solid rgba(0, 229, 204, 0.2);
            position: relative;
            z-index: 1;
            max-width: 620px;
            margin: 0 auto;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            background: var(--bg-primary);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition);
            font-family: inherit;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 16px rgba(255, 106, 0, 0.2);
            outline: none;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
        }

        .form-group select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236E6478' stroke-width='2' fill='none'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            cursor: pointer;
        }

        .form-group select option {
            background: var(--bg-primary);
            color: var(--text-primary);
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .form-submit {
            width: 100%;
            padding: 14px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            border-radius: 8px;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(255, 106, 0, 0.3);
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            cursor: pointer;
            font-family: inherit;
        }

        .form-submit:hover {
            filter: brightness(1.1);
            box-shadow: 0 6px 32px rgba(255, 106, 0, 0.5);
            transform: translateY(-1px);
        }

        .form-trust {
            display: flex;
            gap: 16px;
            margin-top: 14px;
            justify-content: center;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }

        .form-trust span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .form-trust i {
            color: var(--accent-a);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0A080F;
            padding: 56px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
            gap: 32px;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 12px;
            font-size: 18px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-col .compliance {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition);
            text-decoration: none;
        }

        .footer-bottom a:hover {
            color: var(--primary);
        }

        .footer-bottom-links {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-bottom-links span {
            color: rgba(255, 255, 255, 0.15);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1279px) {
            .container {
                max-width: 100%;
                padding: 0 24px;
            }
        }

        @media (max-width: 1023px) {
            :root {
                --section-gap: 56px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .compare-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                display: none;
            }
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .hero h1 {
                font-size: 34px;
            }
            .deep-content,
            .deep-content-2,
            .cta-form-section,
            .brand-intro,
            .limited-entry {
                padding: 32px 24px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-gap: 40px;
                --nav-height: 60px;
            }
            .container {
                padding: 0 16px;
            }
            .nav-links {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .search-btn {
                display: none;
            }
            .hero {
                padding: calc(var(--nav-height) + 24px) 0 60px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 26px;
                line-height: 1.35;
            }
            .hero-subtitle {
                font-size: 15px;
                line-height: 1.7;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-metrics {
                flex-direction: column;
            }
            .hero-metric-card {
                min-width: auto;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .metric-value {
                font-size: 34px;
            }
            .services-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .section-title {
                font-size: 22px;
            }
            .deep-content,
            .deep-content-2,
            .cta-form-section,
            .brand-intro,
            .limited-entry {
                padding: 24px 18px;
            }
            .deep-content p,
            .deep-content-2 p {
                font-size: 14px;
                line-height: 1.85;
            }
            .compare-panel {
                padding: 18px;
            }
            .rank-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 12px 14px;
            }
            .rank-number {
                font-size: 22px;
                width: 36px;
            }
            .rank-item-heat {
                font-size: 18px;
            }
            .news-item {
                flex-direction: column;
                gap: 6px;
                padding: 14px 0;
            }
            .news-date {
                width: auto;
            }
            .limited-entry {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
                padding: 24px 18px;
            }
            .countdown-timer {
                justify-content: center;
            }
            .btn-white {
                width: 100%;
                justify-content: center;
            }
            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
            .brand-intro {
                flex-direction: column;
                text-align: center;
                gap: 20px;
            }
            .brand-intro-logo {
                width: 72px;
                height: 72px;
                font-size: 28px;
                border-radius: 14px;
            }
        }

        @media (max-width: 519px) {
            .hero h1 {
                font-size: 22px;
            }
            .metric-value {
                font-size: 28px;
            }
            .section-title {
                font-size: 19px;
            }
            .countdown-number {
                font-size: 22px;
            }
            .countdown-block {
                min-width: 46px;
                padding: 8px 10px;
            }
        }

/* roulang page: category1 */
:root {
      --primary: #FF6A00;
      --primary-light: #FF8C3A;
      --accent-a: #00E5CC;
      --accent-b: #7B2FBE;
      --accent-c: #FFB800;
      --bg-primary: #0D0B14;
      --bg-secondary: #16121F;
      --bg-tertiary: #1E1828;
      --text-primary: #F4F0F8;
      --text-secondary: #A89FB5;
      --text-muted: #6E6478;
      --border-orange: rgba(255, 106, 0, 0.18);
      --border-cyan: rgba(0, 229, 204, 0.15);
      --gradient-primary: linear-gradient(135deg, #FF6A00, #FFB800);
      --gradient-accent: linear-gradient(135deg, #00E5CC, #7B2FBE);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-default: 0 8px 32px rgba(0, 0, 0, 0.35);
      --shadow-hover: 0 12px 48px rgba(255, 106, 0, 0.15);
      --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
      --font-numeric: "DIN Alternate", "Bebas Neue", "Oswald", "Roboto Condensed", sans-serif;
      --nav-height: 72px;
      --nav-height-scrolled: 56px;
      --section-gap: 56px;
      --section-gap-mobile: 40px;
      --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.8;
      font-size: 16px;
      overflow-x: hidden;
      min-height: 100vh;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition);
    }

    a:hover {
      color: var(--primary);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-md);
    }

    button,
    input,
    select,
    textarea {
      font-family: inherit;
      font-size: inherit;
      outline: none;
      border: none;
      background: none;
    }

    button {
      cursor: pointer;
    }

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 28px;
    }

    /* ========== 导航栏 ========== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      height: var(--nav-height);
      display: flex;
      align-items: center;
      background: rgba(13, 11, 20, 0.55);
      backdrop-filter: blur(16px) saturate(140%);
      -webkit-backdrop-filter: blur(16px) saturate(140%);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
      transition: all var(--transition);
    }

    .site-header.scrolled {
      height: var(--nav-height-scrolled);
      background: #0D0B14;
      border-bottom: 1px solid rgba(255, 106, 0, 0.25);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      gap: 20px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
      font-weight: 700;
      font-size: 20px;
      letter-spacing: -0.3px;
      color: var(--text-primary);
    }

    .logo-icon {
      width: 36px;
      height: 36px;
      background: var(--gradient-primary);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      color: #fff;
      box-shadow: 0 4px 16px rgba(255, 106, 0, 0.35);
      flex-shrink: 0;
    }

    .logo-text {
      white-space: nowrap;
    }

    .logo-text strong {
      color: var(--primary);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 6px;
      list-style: none;
      flex-wrap: nowrap;
    }

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-primary);
      border-radius: 6px;
      white-space: nowrap;
      transition: all var(--transition);
      position: relative;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
    }

    .nav-links li a::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 14px;
      right: 14px;
      height: 1.5px;
      background: var(--primary);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform var(--transition);
    }

    .nav-links li a:hover::after,
    .nav-links li a.active::after {
      transform: scaleX(1);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .search-btn {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-primary);
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.08);
      transition: all var(--transition);
    }

    .search-btn:hover {
      color: var(--primary);
      border-color: var(--border-orange);
      background: rgba(255, 106, 0, 0.1);
    }

    .header-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 18px;
      background: var(--gradient-primary);
      color: #fff;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 14px;
      white-space: nowrap;
      transition: all var(--transition);
      box-shadow: 0 4px 16px rgba(255, 106, 0, 0.25);
    }

    .header-cta:hover {
      color: #fff;
      filter: brightness(1.1);
      box-shadow: 0 6px 24px rgba(255, 106, 0, 0.4);
    }

    .nav-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border-radius: 8px;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.08);
      z-index: 1100;
    }

    .nav-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      background-color: var(--text-primary);
      transition: all var(--transition);
    }

    .nav-toggle.active span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.active span:nth-child(2) {
      opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* ========== 面包屑 ========== */
    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 20px;
    }

    .breadcrumb a {
      color: var(--text-secondary);
      transition: color var(--transition);
    }

    .breadcrumb a:hover {
      color: var(--primary);
    }

    .breadcrumb .separator {
      color: var(--text-muted);
    }

    .breadcrumb .current {
      color: var(--primary);
      font-weight: 500;
    }

    /* ========== Hero ========== */
    .category-hero {
      position: relative;
      padding: calc(var(--nav-height) + 48px) 0 48px;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      background-color: var(--bg-primary);
      overflow: hidden;
    }

    .category-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(13,11,20,0.9) 0%, rgba(13,11,20,0.7) 50%, rgba(13,11,20,0.85) 100%);
      z-index: 1;
    }

    .category-hero .container {
      position: relative;
      z-index: 2;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }

    .hero-title {
      font-size: 36px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.5px;
      margin-bottom: 16px;
    }

    .hero-title .highlight {
      color: var(--primary);
      background: linear-gradient(135deg, var(--primary), var(--accent-c));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-subtitle {
      font-size: 18px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 28px;
      max-width: 560px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 24px;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 24px;
      background: var(--gradient-primary);
      color: #fff;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      transition: all var(--transition);
      box-shadow: 0 4px 16px rgba(255, 106, 0, 0.25);
    }

    .btn-primary:hover {
      color: #fff;
      filter: brightness(1.1);
      box-shadow: 0 8px 28px rgba(255, 106, 0, 0.4);
      transform: translateY(-2px);
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 24px;
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-primary);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      transition: all var(--transition);
    }

    .btn-secondary:hover {
      color: var(--accent-a);
      border-color: var(--accent-a);
      background: rgba(0, 229, 204, 0.08);
    }

    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 16px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 12px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 999px;
      font-size: 13px;
      color: var(--text-secondary);
    }

    .hero-badge i {
      color: var(--accent-a);
      font-size: 14px;
    }

    .hero-panel {
      background: rgba(22, 18, 31, 0.7);
      border: 1px solid rgba(255, 106, 0, 0.18);
      border-radius: var(--radius-lg);
      padding: 24px;
      backdrop-filter: blur(12px);
      box-shadow: var(--shadow-default);
    }

    .hero-panel h3 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 16px;
      color: var(--text-primary);
    }

    .hero-panel ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .hero-panel ul li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: var(--text-secondary);
    }

    .hero-panel ul li i {
      color: var(--accent-c);
      margin-top: 5px;
      flex-shrink: 0;
    }

    /* ========== 统计横条 ========== */
    .stats-bar {
      padding: 20px 0;
      background: var(--bg-secondary);
      border-bottom: 1px solid var(--border-orange);
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .stat-item {
      text-align: center;
      padding: 10px;
    }

    .stat-number {
      font-family: var(--font-numeric);
      font-size: 34px;
      font-weight: 700;
      color: var(--accent-a);
      text-shadow: 0 0 24px rgba(0, 229, 204, 0.35);
    }

    .stat-label {
      font-size: 13px;
      color: var(--text-secondary);
      margin-top: 4px;
    }

    /* ========== 主体列表+侧栏 ========== */
    .main-section {
      padding: var(--section-gap) 0;
    }

    .content-layout {
      display: grid;
      grid-template-columns: 1fr 320px;
      gap: 40px;
      align-items: start;
    }

    .content-main {
      min-width: 0;
    }

    .section-heading {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 28px;
    }

    .section-heading h2 {
      font-size: 26px;
      font-weight: 700;
      letter-spacing: -0.3px;
    }

    .section-heading p {
      font-size: 14px;
      color: var(--text-secondary);
    }

    .article-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .article-item {
      display: grid;
      grid-template-columns: 200px 1fr;
      gap: 20px;
      background: var(--bg-secondary);
      border: 1px solid rgba(255, 106, 0, 0.15);
      border-radius: var(--radius-lg);
      padding: 16px;
      transition: all var(--transition);
      box-shadow: var(--shadow-default);
    }

    .article-item:hover {
      border-color: var(--border-orange);
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }

    .article-cover {
      width: 200px;
      height: 120px;
      overflow: hidden;
      border-radius: var(--radius-md);
      flex-shrink: 0;
    }

    .article-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform var(--transition);
    }

    .article-item:hover .article-cover img {
      transform: scale(1.05);
    }

    .article-body {
      display: flex;
      flex-direction: column;
      gap: 8px;
      min-width: 0;
    }

    .article-meta {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .article-meta .date {
      font-family: var(--font-numeric);
      color: var(--accent-b);
      letter-spacing: 0.3px;
    }

    .article-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .article-tags .tag {
      font-size: 12px;
      padding: 2px 8px;
      background: rgba(255, 106, 0, 0.12);
      color: var(--primary-light);
      border-radius: 999px;
      border: 1px solid var(--border-orange);
    }

    .article-title {
      font-size: 17px;
      font-weight: 600;
      line-height: 1.5;
      color: var(--text-primary);
      transition: color var(--transition);
    }

    .article-item:hover .article-title {
      color: var(--primary);
    }

    .article-excerpt {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .article-readmore {
      font-size: 14px;
      color: var(--accent-a);
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      transition: all var(--transition);
    }

    .article-readmore i {
      font-size: 12px;
      transition: transform var(--transition);
    }

    .article-readmore:hover {
      color: var(--primary);
    }

    .article-readmore:hover i {
      transform: translateX(4px);
    }

    /* ========== 侧栏 ========== */
    .sidebar {
      display: flex;
      flex-direction: column;
      gap: 24px;
      position: sticky;
      top: calc(var(--nav-height-scrolled) + 24px);
    }

    .sidebar-card {
      background: var(--bg-secondary);
      border: 1px solid var(--border-orange);
      border-radius: var(--radius-lg);
      padding: 20px;
      box-shadow: var(--shadow-default);
    }

    .sidebar-card h3 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 16px;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .sidebar-card h3 i {
      color: var(--primary);
    }

    .metric-mini {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .metric-mini-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
    }

    .metric-mini-item .metric-name {
      font-size: 13px;
      color: var(--text-secondary);
    }

    .metric-mini-item .metric-value {
      font-family: var(--font-numeric);
      font-size: 20px;
      font-weight: 700;
      color: var(--accent-a);
      text-shadow: 0 0 16px rgba(0, 229, 204, 0.25);
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tag-cloud .tag {
      font-size: 13px;
      padding: 4px 12px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 999px;
      color: var(--text-secondary);
      transition: all var(--transition);
    }

    .tag-cloud .tag:hover {
      background: rgba(255, 106, 0, 0.12);
      border-color: var(--border-orange);
      color: var(--primary);
    }

    /* ========== 服务亮点 ========== */
    .feature-section {
      padding: var(--section-gap) 0;
      background: var(--bg-secondary);
      border-top: 1px solid var(--border-cyan);
      border-bottom: 1px solid var(--border-cyan);
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 28px;
    }

    .feature-card {
      background: var(--bg-tertiary);
      border: 1px solid var(--border-orange);
      border-radius: var(--radius-lg);
      padding: 24px;
      transition: all var(--transition);
    }

    .feature-card:hover {
      border-color: var(--accent-a);
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }

    .feature-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: var(--gradient-accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: #fff;
      margin-bottom: 16px;
      box-shadow: 0 4px 16px rgba(0, 229, 204, 0.25);
    }

    .feature-card h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 10px;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* ========== 深度正文 ========== */
    .deep-section {
      padding: var(--section-gap) 0;
    }

    .deep-content {
      max-width: 860px;
    }

    .deep-content h2 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 20px;
      letter-spacing: -0.3px;
    }

    .deep-content h3 {
      font-size: 19px;
      font-weight: 600;
      margin: 24px 0 12px;
      color: var(--accent-a);
    }

    .deep-content p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.9;
      margin-bottom: 16px;
    }

    .deep-content blockquote {
      border-left: 3px solid var(--primary);
      padding: 16px 20px;
      margin: 20px 0;
      background: var(--bg-secondary);
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      color: var(--text-primary);
      font-size: 15px;
    }

    .deep-content ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin: 16px 0;
    }

    .deep-content ul li {
      padding-left: 24px;
      position: relative;
      font-size: 15px;
      color: var(--text-secondary);
    }

    .deep-content ul li::before {
      content: '▹';
      position: absolute;
      left: 0;
      color: var(--primary);
      font-weight: 700;
    }

    /* ========== FAQ ========== */
    .faq-section {
      padding: var(--section-gap) 0;
      background: var(--bg-secondary);
      border-top: 1px solid var(--border-orange);
      border-bottom: 1px solid var(--border-orange);
    }

    .faq-list {
      max-width: 800px;
      margin: 28px auto 0;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: var(--bg-tertiary);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all var(--transition);
    }

    .faq-item:hover {
      border-color: var(--border-orange);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 20px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-primary);
      text-align: left;
      transition: background var(--transition);
    }

    .faq-question:hover {
      background: rgba(255, 106, 0, 0.08);
    }

    .faq-icon {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: rgba(255, 106, 0, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      color: var(--primary);
      transition: transform var(--transition);
      flex-shrink: 0;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      background: var(--gradient-primary);
      color: #fff;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s ease;
      padding: 0 20px;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 20px 18px;
    }

    .faq-answer p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.8;
      border-left: 2px solid var(--primary);
      padding-left: 14px;
    }

    /* ========== CTA 表单 ========== */
    .cta-section {
      padding: var(--section-gap) 0;
    }

    .cta-card {
      background: var(--bg-tertiary);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-lg);
      padding: 40px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      box-shadow: var(--shadow-default);
    }

    .cta-info h2 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 12px;
    }

    .cta-info p {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 16px;
    }

    .cta-trust {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .cta-trust span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .cta-trust i {
      color: var(--accent-a);
    }

    .cta-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 13px;
      color: var(--text-secondary);
    }

    .form-group input,
    .form-group select {
      padding: 12px 14px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-sm);
      color: var(--text-primary);
      font-size: 15px;
      transition: all var(--transition);
    }

    .form-group input:focus,
    .form-group select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(255, 106, 0, 0.15);
      background: rgba(255, 106, 0, 0.04);
    }

    .form-group input::placeholder {
      color: var(--text-muted);
    }

    .form-submit {
      width: 100%;
      padding: 13px;
      background: var(--gradient-primary);
      color: #fff;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      transition: all var(--transition);
      box-shadow: 0 4px 16px rgba(255, 106, 0, 0.25);
    }

    .form-submit:hover {
      filter: brightness(1.1);
      box-shadow: 0 8px 28px rgba(255, 106, 0, 0.4);
    }

    /* ========== 页脚 ========== */
    .site-footer {
      background: #0A080F;
      border-top: 1px solid rgba(255, 106, 0, 0.15);
      padding: 48px 0 24px;
      color: var(--text-muted);
      font-size: 14px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr;
      gap: 28px;
      margin-bottom: 32px;
    }

    .footer-brand .logo {
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 13px;
      line-height: 1.8;
      color: var(--text-muted);
    }

    .footer-col h4 {
      font-size: 16px;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 14px;
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-col ul li a {
      font-size: 14px;
      color: var(--text-muted);
      transition: color var(--transition);
    }

    .footer-col ul li a:hover {
      color: var(--primary);
    }

    .compliance p {
      font-size: 13px;
      line-height: 1.8;
      margin-bottom: 4px;
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 13px;
    }

    .footer-bottom-links {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }

    .footer-bottom-links a {
      color: var(--text-muted);
      transition: color var(--transition);
    }

    .footer-bottom-links a:hover {
      color: var(--primary);
    }

    .footer-bottom-links span {
      color: var(--text-muted);
    }

    /* ========== 移动端样式 ========== */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .content-layout {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .sidebar {
        position: static;
      }

      .feature-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .cta-card {
        grid-template-columns: 1fr;
        gap: 28px;
        padding: 28px;
      }

      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }
    }

    @media (max-width: 768px) {
      :root {
        --nav-height: 60px;
        --nav-height-scrolled: 52px;
        --section-gap: 40px;
      }

      .container {
        padding: 0 18px;
      }

      .nav-links {
        display: none;
      }

      .nav-toggle {
        display: flex;
      }

      .header-cta {
        display: none;
      }

      .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 80%;
        max-width: 320px;
        background: rgba(13, 11, 20, 0.98);
        backdrop-filter: blur(16px);
        padding: 80px 24px 24px;
        gap: 8px;
        z-index: 1050;
        border-left: 1px solid var(--border-orange);
        box-shadow: -8px 0 32px rgba(0, 0, 0, 0.5);
      }

      .nav-links.mobile-open li {
        width: 100%;
      }

      .nav-links.mobile-open li a {
        display: block;
        width: 100%;
        padding: 12px 16px;
        font-size: 16px;
        border-radius: 8px;
      }

      .hero-title {
        font-size: 24px;
      }

      .hero-subtitle {
        font-size: 16px;
      }

      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
      }

      .stat-number {
        font-size: 26px;
      }

      .article-item {
        grid-template-columns: 1fr;
        gap: 14px;
      }

      .article-cover {
        width: 100%;
        height: 180px;
      }

      .feature-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }

      .section-heading h2 {
        font-size: 22px;
      }

      .deep-content h2 {
        font-size: 22px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 520px) {
      .hero-title {
        font-size: 22px;
      }

      .stats-grid {
        grid-template-columns: 1fr;
      }

      .hero-actions {
        flex-direction: column;
        width: 100%;
      }

      .hero-actions .btn-primary,
      .hero-actions .btn-secondary {
        width: 100%;
        justify-content: center;
      }

      .cta-card {
        padding: 20px;
      }

      .form-submit {
        font-size: 14px;
      }
    }

/* roulang page: category3 */
:root {
            --primary: #FF6A00;
            --primary-light: #FF8C3A;
            --accent-a: #00E5CC;
            --accent-b: #7B2FBE;
            --accent-c: #FFB800;
            --bg-primary: #0D0B14;
            --bg-secondary: #16121F;
            --bg-tertiary: #1E1828;
            --text-primary: #F4F0F8;
            --text-secondary: #A89FB5;
            --text-muted: #6E6478;
            --border-orange: rgba(255, 106, 0, 0.18);
            --border-cyan: rgba(0, 229, 204, 0.15);
            --gradient-primary: linear-gradient(135deg, #FF6A00, #FFB800);
            --gradient-accent: linear-gradient(135deg, #00E5CC, #7B2FBE);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-default: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 48px rgba(255, 106, 0, 0.15);
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            --font-numeric: "DIN Alternate", "Bebas Neue", "Oswald", "Roboto Condensed", sans-serif;
            --nav-height: 72px;
            --nav-height-scrolled: 56px;
            --section-gap: 72px;
            --section-gap-mobile: 48px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: rgba(13, 11, 20, 0.55);
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
            transition: all var(--transition);
        }
        .site-header.scrolled {
            height: var(--nav-height-scrolled);
            background: #0D0B14;
            border-bottom: 1px solid rgba(255, 106, 0, 0.25);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: -0.3px;
            color: var(--text-primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--gradient-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.35);
            flex-shrink: 0;
        }
        .logo-text {
            white-space: nowrap;
        }
        .logo-text strong {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            flex-wrap: nowrap;
        }
        .nav-links li a {
            display: block;
            padding: 8px 13px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 6px;
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
        }
        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 13px;
            right: 13px;
            height: 1.5px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            transform: scaleX(1);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .search-btn {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 16px;
            transition: all var(--transition);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .search-btn:hover {
            color: var(--primary);
            border-color: rgba(255, 106, 0, 0.3);
            background: rgba(255, 106, 0, 0.08);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: 8px;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            color: #fff;
            box-shadow: 0 4px 20px rgba(255, 106, 0, 0.35);
            transform: translateY(-1px);
        }
        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 20px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .menu-toggle:hover {
            color: var(--primary);
            border-color: rgba(255, 106, 0, 0.3);
        }

        /* ========== 移动端导航抽屉 ========== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 999;
            background: rgba(13, 11, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 100px 28px 40px;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 8px;
            transition: all var(--transition);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
            background: rgba(255, 106, 0, 0.08);
        }
        .mobile-menu .mobile-search {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-orange);
            border-radius: 8px;
            padding: 12px 16px;
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: 8px;
        }
        .mobile-menu .mobile-search i {
            color: var(--primary);
        }

        /* ========== Hero ========== */
        .hero {
            padding-top: calc(var(--nav-height) + 38px);
            padding-bottom: 62px;
            background-image: linear-gradient(180deg, rgba(13, 11, 20, 0.85), rgba(13, 11, 20, 0.92)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(180deg, transparent, var(--bg-primary));
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 760px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 100px;
            background: rgba(255, 106, 0, 0.12);
            border: 1px solid rgba(255, 106, 0, 0.25);
            color: var(--primary-light);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .hero-badge i {
            font-size: 12px;
        }
        .hero h1 {
            font-size: 40px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .hero h1 span {
            color: var(--primary);
        }
        .hero-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.9;
        }
        .hero-search {
            max-width: 560px;
            margin: 0 auto 30px;
            display: flex;
            align-items: center;
            gap: 0;
            background: var(--bg-secondary);
            border: 1px solid var(--border-orange);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
        }
        .hero-search:focus-within {
            border-color: rgba(255, 106, 0, 0.5);
            box-shadow: 0 0 0 4px rgba(255, 106, 0, 0.1), var(--shadow-hover);
        }
        .hero-search .search-icon {
            padding: 0 18px;
            color: var(--text-muted);
            font-size: 16px;
            flex-shrink: 0;
        }
        .hero-search input {
            flex: 1;
            padding: 16px 0;
            font-size: 15px;
            color: var(--text-primary);
        }
        .hero-search input::placeholder {
            color: var(--text-muted);
        }
        .hero-search button {
            padding: 12px 24px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: 0;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .hero-search button:hover {
            box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.15);
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .hero-tags span {
            font-size: 13px;
            color: var(--text-secondary);
            margin-right: 4px;
        }
        .hero-tags a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 100px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .hero-tags a:hover {
            color: var(--primary);
            border-color: rgba(255, 106, 0, 0.3);
            background: rgba(255, 106, 0, 0.08);
        }

        /* ========== Section 通用 ========== */
        section {
            padding: var(--section-gap) 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 5px 14px;
            border-radius: 100px;
            background: rgba(0, 229, 204, 0.08);
            border: 1px solid var(--border-cyan);
            color: var(--accent-a);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.3px;
            line-height: 1.35;
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.9;
            margin-bottom: 36px;
        }
        .section-subtitle {
            font-size: 20px;
            font-weight: 600;
            letter-spacing: -0.2px;
            margin-bottom: 10px;
        }

        /* ========== 数据看板 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-orange);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-accent);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .stat-value {
            font-family: var(--font-numeric);
            font-size: 42px;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: var(--accent-a);
            text-shadow: 0 0 24px rgba(0, 229, 204, 0.35);
            margin-bottom: 8px;
            line-height: 1.2;
        }
        .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: #2ecc71;
            margin-bottom: 8px;
        }
        .stat-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 玩法卡片 ========== */
        .play-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .play-card {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .play-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--border-orange);
        }
        .play-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            color: #fff;
            background: var(--gradient-accent);
            box-shadow: 0 4px 16px rgba(0, 229, 204, 0.25);
        }
        .play-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .play-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .play-card .tag {
            display: inline-block;
            margin-top: 14px;
            padding: 4px 12px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(255, 106, 0, 0.1);
            color: var(--primary);
            border: 1px solid rgba(255, 106, 0, 0.2);
        }

        /* ========== 场景区块 ========== */
        .scene-block {
            background: var(--bg-secondary);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 40px;
            align-items: center;
            box-shadow: var(--shadow-default);
        }
        .scene-image {
            aspect-ratio: 16/10;
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
        }
        .scene-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scene-image::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(255, 106, 0, 0.15), transparent);
            pointer-events: none;
        }
        .scene-info h3 {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .scene-info p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 18px;
        }
        .scene-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .scene-list li {
            font-size: 14px;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.7;
        }
        .scene-list li i {
            color: var(--accent-a);
            font-size: 14px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ========== 流程 ========== */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .flow-step {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
            position: relative;
        }
        .flow-step:hover {
            border-color: var(--border-orange);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-numeric);
            font-size: 20px;
            font-weight: 700;
            margin: 0 auto 14px;
            color: #fff;
            background: var(--gradient-primary);
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.3);
        }
        .flow-step h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .flow-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .flow-arrow {
            position: absolute;
            top: 50%;
            left: calc(25% - 12px);
            transform: translate(-50%, -50%);
            color: var(--text-muted);
            font-size: 18px;
            display: none;
        }

        /* ========== 深度内容 ========== */
        .deep-section {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 52px 44px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: var(--shadow-default);
        }
        .deep-section h2 {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: -0.3px;
            margin-bottom: 16px;
        }
        .deep-section h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--primary-light);
            margin-top: 24px;
        }
        .deep-section p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 2.0;
            margin-bottom: 14px;
        }
        .deep-section blockquote {
            border-left: 3px solid var(--primary);
            padding: 14px 20px;
            margin: 20px 0;
            background: rgba(255, 106, 0, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.9;
            font-style: italic;
        }
        .deep-insight {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin-top: 24px;
            margin-bottom: 10px;
        }
        .deep-insight-card {
            background: var(--bg-tertiary);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .deep-insight-card .num {
            font-family: var(--font-numeric);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-a);
            text-shadow: 0 0 16px rgba(0, 229, 204, 0.3);
            margin-bottom: 4px;
            display: block;
        }
        .deep-insight-card .label {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 840px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-orange);
        }
        .faq-item.active {
            border-color: var(--border-orange);
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            transition: all var(--transition);
        }
        .faq-question:hover {
            background: rgba(255, 106, 0, 0.05);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--accent-a);
            background: rgba(0, 229, 204, 0.1);
            transition: all var(--transition);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(255, 106, 0, 0.15);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 22px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding-left: 12px;
            border-left: 2px solid var(--primary);
        }

        /* ========== CTA 表单 ========== */
        .cta-section {
            background: linear-gradient(180deg, var(--bg-primary), var(--bg-secondary));
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(255, 106, 0, 0.06), transparent 70%);
            pointer-events: none;
        }
        .cta-wrap {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .cta-info h2 {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.3px;
            margin-bottom: 14px;
        }
        .cta-info p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 18px;
        }
        .cta-trust {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .cta-trust span {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .cta-trust i {
            color: var(--accent-a);
            font-size: 14px;
        }
        .form-card {
            background: var(--bg-tertiary);
            border: 1px solid rgba(0, 229, 204, 0.2);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-default);
        }
        .form-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-group.full {
            grid-column: 1 / -1;
        }
        .form-group label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            padding: 12px 16px;
            border-radius: 8px;
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition);
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: rgba(255, 106, 0, 0.5);
            box-shadow: 0 0 0 4px rgba(255, 106, 0, 0.08);
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
        }
        .submit-btn {
            width: 100%;
            padding: 14px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: 8px;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 8px;
        }
        .submit-btn:hover {
            box-shadow: 0 4px 24px rgba(255, 106, 0, 0.35);
            transform: translateY(-1px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0A080F;
            padding: 52px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 36px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
            font-size: 18px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--primary);
        }
        .footer-col .compliance p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 2.0;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 18px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--primary);
        }
        .footer-bottom-links span {
            color: var(--text-muted);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1279px) {
            .nav-links li a {
                padding: 8px 10px;
                font-size: 14px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .play-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
            .cta-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .scene-block {
                grid-template-columns: 1fr;
                padding: 28px 22px;
                gap: 24px;
            }
            .deep-section {
                padding: 36px 28px;
            }
            .deep-insight {
                grid-template-columns: repeat(3, 1fr);
            }
            .section-title {
                font-size: 24px;
            }
            .hero h1 {
                font-size: 32px;
            }
        }
        @media (max-width: 767px) {
            :root {
                --section-gap: 40px;
                --nav-height: 60px;
            }
            .container {
                padding: 0 18px;
            }
            .hero {
                padding-top: calc(var(--nav-height) + 24px);
                padding-bottom: 40px;
            }
            .hero h1 {
                font-size: 24px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-search {
                flex-direction: column;
                gap: 0;
            }
            .hero-search input {
                width: 100%;
                padding: 14px 18px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            }
            .hero-search button {
                width: 100%;
                padding: 12px;
                border-radius: 0;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stat-value {
                font-size: 32px;
            }
            .play-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .flow-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .deep-section {
                padding: 24px 18px;
            }
            .deep-section h2 {
                font-size: 20px;
            }
            .deep-insight {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .form-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: left;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .cta-wrap {
                gap: 20px;
            }
            .form-card {
                padding: 22px 18px;
            }
            .section-title {
                font-size: 22px;
            }
            .scroll-top {
                right: 16px;
                bottom: 16px;
                width: 36px;
                height: 36px;
                font-size: 14px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #FF6A00;
            --primary-light: #FF8C3A;
            --accent-a: #00E5CC;
            --accent-b: #7B2FBE;
            --accent-c: #FFB800;
            --bg-primary: #0D0B14;
            --bg-secondary: #16121F;
            --bg-tertiary: #1E1828;
            --text-primary: #F4F0F8;
            --text-secondary: #A89FB5;
            --text-muted: #6E6478;
            --border-orange: rgba(255, 106, 0, 0.18);
            --border-cyan: rgba(0, 229, 204, 0.15);
            --gradient-primary: linear-gradient(135deg, #FF6A00, #FFB800);
            --gradient-accent: linear-gradient(135deg, #00E5CC, #7B2FBE);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-default: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 48px rgba(255, 106, 0, 0.15);
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            --font-numeric: "DIN Alternate", "Bebas Neue", "Oswald", "Roboto Condensed", sans-serif;
            --nav-height: 72px;
            --nav-height-scrolled: 56px;
            --section-gap: 64px;
            --section-gap-mobile: 40px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: rgba(13, 11, 20, 0.55);
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
            transition: all var(--transition);
        }

        .site-header.scrolled {
            height: var(--nav-height-scrolled);
            background: #0D0B14;
            border-bottom: 1px solid rgba(255, 106, 0, 0.25);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: -0.3px;
            color: var(--text-primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--gradient-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.35);
            flex-shrink: 0;
        }

        .logo-text {
            white-space: nowrap;
        }

        .logo-text strong {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 6px;
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 1.5px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }

        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            transform: scaleX(1);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .search-btn {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }

        .search-btn:hover {
            color: var(--primary);
            border-color: rgba(255, 106, 0, 0.35);
            background: rgba(255, 106, 0, 0.08);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: 8px;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.3);
            white-space: nowrap;
        }

        .nav-cta:hover {
            color: #fff;
            box-shadow: 0 6px 24px rgba(255, 106, 0, 0.45);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 20px;
            flex-shrink: 0;
        }

        /* ========== Hero ========== */
        .page-hero {
            padding: calc(var(--nav-height) + 56px) 0 56px;
            background: linear-gradient(180deg, rgba(13, 11, 20, 0.92) 0%, rgba(13, 11, 20, 0.98) 100%),
                url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            position: relative;
            border-bottom: 1px solid rgba(255, 106, 0, 0.15);
            min-height: 420px;
            display: flex;
            align-items: center;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 106, 0, 0.4), transparent);
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .hero-breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .hero-breadcrumb a:hover {
            color: var(--primary);
        }

        .hero-breadcrumb .separator {
            color: var(--text-muted);
            font-size: 12px;
        }

        .hero-breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .hero-content h1 .highlight {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-content .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 540px;
            margin-bottom: 24px;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            border-radius: 999px;
            background: rgba(255, 106, 0, 0.1);
            border: 1px solid rgba(255, 106, 0, 0.25);
            color: var(--primary-light);
            transition: all var(--transition);
        }

        .hero-badge i {
            font-size: 12px;
        }

        .hero-badge:hover {
            background: rgba(255, 106, 0, 0.18);
            border-color: rgba(255, 106, 0, 0.45);
            color: var(--primary);
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: 8px;
            transition: all var(--transition);
            box-shadow: 0 8px 32px rgba(255, 106, 0, 0.3);
        }

        .btn-primary:hover {
            color: #fff;
            box-shadow: 0 12px 40px rgba(255, 106, 0, 0.45);
            transform: translateY(-2px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all var(--transition);
        }

        .btn-secondary:hover {
            color: var(--accent-a);
            border-color: rgba(0, 229, 204, 0.4);
            background: rgba(0, 229, 204, 0.06);
            transform: translateY(-2px);
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }

        .hero-visual-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 106, 0, 0.15);
            box-shadow: var(--shadow-default);
            padding: 28px;
            width: 100%;
            max-width: 420px;
            position: relative;
            overflow: hidden;
        }

        .hero-visual-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-primary);
        }

        .hero-visual-card .visual-label {
            font-size: 12px;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-visual-card .visual-label .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--accent-a);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(0, 229, 204, 0.5); }
            50% { box-shadow: 0 0 0 8px rgba(0, 229, 204, 0); }
        }

        .hero-visual-card .visual-stats {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 12px;
        }

        .visual-stat-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .visual-stat-row:last-child {
            border-bottom: none;
        }

        .visual-stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .visual-stat-value {
            font-family: var(--font-numeric);
            font-size: 22px;
            font-weight: 700;
            color: var(--accent-a);
            text-shadow: 0 0 20px rgba(0, 229, 204, 0.35);
        }

        /* ========== 通用区块 ========== */
        .section {
            padding: var(--section-gap) 0;
        }

        .section-header {
            margin-bottom: 40px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            line-height: 1.4;
        }

        .section-title .highlight {
            color: var(--primary);
        }

        .section-description {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 620px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--accent-a);
            margin-bottom: 12px;
        }

        .section-tag .tag-line {
            width: 28px;
            height: 2px;
            background: var(--accent-a);
            border-radius: 2px;
        }

        /* ========== 卡片网格 ========== */
        .card-grid-table {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .game-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 106, 0, 0.12);
            box-shadow: var(--shadow-default);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .game-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 106, 0, 0.3);
            transform: translateY(-4px);
        }

        .game-card .card-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: 0;
        }

        .game-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .game-card:hover .card-thumb img {
            transform: scale(1.05);
        }

        .game-card .card-thumb .thumb-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(13, 11, 20, 0.8) 100%);
        }

        .game-card .card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 5px 14px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            border-radius: 4px;
            z-index: 2;
            letter-spacing: 0.3px;
        }

        .game-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .game-card .card-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            letter-spacing: -0.2px;
        }

        .game-card .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            flex: 1;
        }

        .game-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

        .game-card .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .game-card .card-meta i {
            font-size: 12px;
            color: var(--accent-a);
        }

        .game-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-a);
            transition: all var(--transition);
            margin-top: 4px;
        }

        .game-card .read-more i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .game-card .read-more:hover {
            color: var(--primary);
        }

        .game-card .read-more:hover i {
            transform: translateX(4px);
        }

        /* ========== 数据亮点横条 ========== */
        .stats-strip {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 106, 0, 0.15);
            border-bottom: 1px solid rgba(255, 106, 0, 0.15);
            padding: 32px 0;
        }

        .stats-strip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-strip-item {
            text-align: center;
            padding: 12px;
        }

        .stat-strip-item .stat-number {
            font-family: var(--font-numeric);
            font-size: 38px;
            font-weight: 700;
            color: var(--accent-a);
            text-shadow: 0 0 28px rgba(0, 229, 204, 0.35);
            line-height: 1.2;
        }

        .stat-strip-item .stat-number.orange {
            color: var(--primary);
            text-shadow: 0 0 28px rgba(255, 106, 0, 0.35);
        }

        .stat-strip-item .stat-number.purple {
            color: var(--accent-b);
            text-shadow: 0 0 28px rgba(123, 47, 190, 0.35);
        }

        .stat-strip-item .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* ========== 适用场景 ========== */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            padding: 26px 24px;
            border: 1px solid rgba(255, 106, 0, 0.1);
            transition: all var(--transition);
        }

        .scenario-card:hover {
            border-color: rgba(255, 106, 0, 0.3);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .scenario-card .scenario-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(255, 106, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .scenario-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .scenario-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== 流程 ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .process-step {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            border: 1px solid rgba(0, 229, 204, 0.12);
            position: relative;
            transition: all var(--transition);
        }

        .process-step:hover {
            border-color: rgba(0, 229, 204, 0.35);
            box-shadow: 0 8px 32px rgba(0, 229, 204, 0.08);
        }

        .process-step::before {
            counter-increment: step;
            content: counter(step, decimal-leading-zero);
            font-family: var(--font-numeric);
            font-size: 32px;
            font-weight: 700;
            color: rgba(0, 229, 204, 0.25);
            display: block;
            margin-bottom: 12px;
            line-height: 1;
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 106, 0, 0.1);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(255, 106, 0, 0.3);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            transition: all var(--transition);
            gap: 12px;
        }

        .faq-question:hover {
            background: rgba(255, 106, 0, 0.05);
            color: var(--primary);
        }

        .faq-question .faq-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: rgba(255, 106, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: all var(--transition);
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
            background: rgba(255, 106, 0, 0.25);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 22px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 14px;
        }

        /* ========== CTA表单 ========== */
        .cta-section {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(0, 229, 204, 0.2);
            overflow: hidden;
            position: relative;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-accent);
        }

        .cta-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            padding: 44px 40px;
            align-items: center;
        }

        .cta-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .cta-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .cta-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .cta-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .cta-trust i {
            font-size: 14px;
            color: var(--accent-a);
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .cta-form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .cta-form input,
        .cta-form select {
            padding: 13px 16px;
            border-radius: 8px;
            background: var(--bg-tertiary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition);
        }

        .cta-form input::placeholder {
            color: var(--text-muted);
        }

        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 106, 0, 0.1);
        }

        .cta-form select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A89FB5' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            background-color: var(--bg-tertiary);
            color: var(--text-secondary);
        }

        .cta-form select option {
            background: var(--bg-secondary);
            color: var(--text-primary);
        }

        .cta-form button[type="submit"] {
            padding: 14px 28px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: 8px;
            transition: all var(--transition);
            box-shadow: 0 8px 32px rgba(255, 106, 0, 0.25);
            width: 100%;
            cursor: pointer;
        }

        .cta-form button[type="submit"]:hover {
            box-shadow: 0 12px 40px rgba(255, 106, 0, 0.4);
            transform: translateY(-1px);
        }

        /* ========== 分页导航占位 ========== */
        .pagination-placeholder {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .pagination-placeholder .page-item {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 500;
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-secondary);
            transition: all var(--transition);
            cursor: pointer;
        }

        .pagination-placeholder .page-item:hover {
            border-color: rgba(255, 106, 0, 0.4);
            color: var(--primary);
        }

        .pagination-placeholder .page-item.active {
            background: var(--gradient-primary);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.3);
        }

        .pagination-placeholder .page-item.disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0A080F;
            border-top: 1px solid rgba(255, 106, 0, 0.15);
            padding: 56px 0 28px;
            margin-top: var(--section-gap);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
            font-size: 18px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: all var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-col .compliance {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-col .compliance p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .footer-bottom-links a:hover {
            color: var(--primary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1280px) {
            .nav-links li a {
                padding: 8px 10px;
                font-size: 14px;
            }
            .header-actions .nav-cta span {
                display: none;
            }
            .header-actions .nav-cta {
                padding: 10px 14px;
            }
        }

        @media (max-width: 1023px) {
            :root {
                --nav-height: 64px;
                --section-gap: 48px;
            }

            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-content h1 {
                font-size: 32px;
            }

            .hero-visual-card {
                max-width: 100%;
            }

            .card-grid-table {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .stats-strip-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .scenarios-grid {
                grid-template-columns: 1fr 1fr;
            }

            .process-steps {
                grid-template-columns: 1fr 1fr;
            }

            .cta-inner {
                grid-template-columns: 1fr;
                padding: 32px 24px;
                gap: 28px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 24px;
            }

            .nav-links {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(13, 11, 20, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 28px;
                gap: 8px;
                z-index: 999;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links li {
                width: 100%;
            }

            .nav-links li a {
                padding: 14px 10px;
                font-size: 16px;
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }

            .hamburger {
                display: flex;
            }
        }

        @media (max-width: 767px) {
            :root {
                --nav-height: 60px;
                --section-gap: 40px;
                --section-gap-mobile: 32px;
            }

            .container {
                padding: 0 16px;
            }

            .page-hero {
                padding: calc(var(--nav-height) + 32px) 0 40px;
                min-height: auto;
            }

            .hero-content h1 {
                font-size: 26px;
            }

            .hero-content .hero-desc {
                font-size: 14px;
            }

            .hero-badges {
                gap: 6px;
            }

            .hero-badge {
                font-size: 11px;
                padding: 4px 10px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-primary,
            .btn-secondary {
                justify-content: center;
                width: 100%;
            }

            .card-grid-table {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .game-card .card-title {
                font-size: 17px;
            }

            .stats-strip-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .stat-strip-item .stat-number {
                font-size: 28px;
            }

            .scenarios-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .process-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .cta-inner {
                padding: 24px 16px;
                gap: 20px;
            }

            .cta-content h2 {
                font-size: 20px;
            }

            .cta-form-row {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .section-title {
                font-size: 21px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .stats-strip-grid {
                grid-template-columns: 1fr;
            }

            .pagination-placeholder .page-item {
                width: 34px;
                height: 34px;
                font-size: 12px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #FF6A00;
            --primary-light: #FF8C3A;
            --accent-a: #00E5CC;
            --accent-b: #7B2FBE;
            --accent-c: #FFB800;
            --bg-primary: #0D0B14;
            --bg-secondary: #16121F;
            --bg-tertiary: #1E1828;
            --text-primary: #F4F0F8;
            --text-secondary: #A89FB5;
            --text-muted: #6E6478;
            --border-orange: rgba(255, 106, 0, 0.18);
            --border-cyan: rgba(0, 229, 204, 0.15);
            --gradient-primary: linear-gradient(135deg, #FF6A00, #FFB800);
            --gradient-accent: linear-gradient(135deg, #00E5CC, #7B2FBE);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-default: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 48px rgba(255, 106, 0, 0.15);
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            --font-numeric: "DIN Alternate", "Bebas Neue", "Oswald", "Roboto Condensed", sans-serif;
            --nav-height: 72px;
            --nav-height-scrolled: 56px;
            --section-gap: 56px;
            --section-gap-mobile: 40px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: rgba(13, 11, 20, 0.55);
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
            transition: all var(--transition);
        }
        .site-header.scrolled {
            height: var(--nav-height-scrolled);
            background: #0D0B14;
            border-bottom: 1px solid rgba(255, 106, 0, 0.25);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: -0.3px;
            color: var(--text-primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--gradient-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.35);
            flex-shrink: 0;
        }
        .logo-text {
            white-space: nowrap;
        }
        .logo-text strong {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            flex-wrap: nowrap;
        }
        .nav-links li a {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 6px;
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
        }
        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 1.5px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            transform: scaleX(1);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .search-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
            font-size: 15px;
        }
        .search-btn:hover {
            color: var(--primary);
            border-color: var(--border-orange);
            background: rgba(255, 106, 0, 0.1);
        }
        .nav-cta {
            padding: 10px 20px;
            background: var(--gradient-primary);
            border-radius: 8px;
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.3);
        }
        .nav-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: 0 6px 24px rgba(255, 106, 0, 0.45);
        }
        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 18px;
            flex-shrink: 0;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            padding-top: calc(var(--nav-height) + 24px);
            padding-bottom: 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 11px;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* ========== 分类 Hero ========== */
        .category-hero {
            padding: 48px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 30%, rgba(255, 106, 0, 0.12), transparent 55%),
                radial-gradient(ellipse at 80% 60%, rgba(123, 47, 190, 0.1), transparent 50%);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(255, 106, 0, 0.12);
            border: 1px solid var(--border-orange);
            border-radius: 20px;
            font-size: 13px;
            color: var(--primary-light);
            margin-bottom: 18px;
            font-weight: 500;
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .category-hero h1 .highlight {
            color: var(--primary);
        }
        .category-hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .category-hero-meta {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-muted);
        }
        .category-hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .category-hero-meta i {
            color: var(--accent-a);
            font-size: 13px;
        }

        /* ========== 区块通用 ========== */
        section {
            padding: var(--section-gap) 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-a);
            text-transform: none;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .section-label::before {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--accent-a);
            border-radius: 2px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.3px;
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        /* ========== 数据横条 ========== */
        .stats-strip {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-orange);
            border-bottom: 1px solid var(--border-orange);
        }
        .stats-strip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            padding: 28px 0;
        }
        .stat-strip-item {
            text-align: center;
            padding: 12px;
            border-radius: var(--radius-md);
            background: var(--bg-tertiary);
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .stat-strip-number {
            font-family: var(--font-numeric);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent-a);
            text-shadow: 0 0 20px rgba(0, 229, 204, 0.35);
            line-height: 1.2;
        }
        .stat-strip-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== 时间轴 ========== */
        .timeline-section {
            background: var(--bg-primary);
            position: relative;
        }
        .timeline-wrapper {
            position: relative;
            max-width: 820px;
            margin: 0 auto;
            padding-left: 40px;
        }
        .timeline-wrapper::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), var(--accent-b), rgba(255, 255, 255, 0.05));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding: 0 0 40px 0;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: -40px;
            top: 10px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--bg-primary);
            border: 3px solid var(--primary);
            box-shadow: 0 0 0 4px rgba(255, 106, 0, 0.15), 0 0 20px rgba(255, 106, 0, 0.35);
            z-index: 2;
        }
        .timeline-item:nth-child(even) .timeline-dot {
            border-color: var(--accent-a);
            box-shadow: 0 0 0 4px rgba(0, 229, 204, 0.12), 0 0 20px rgba(0, 229, 204, 0.25);
        }
        .timeline-card {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 22px 26px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .timeline-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: var(--gradient-primary);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .timeline-card:hover {
            border-color: var(--border-orange);
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }
        .timeline-card:hover::before {
            opacity: 1;
        }
        .timeline-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-family: var(--font-numeric);
            font-size: 13px;
            color: var(--accent-a);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .timeline-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
            line-height: 1.5;
        }
        .timeline-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .timeline-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 500;
            margin-top: 10px;
            background: rgba(255, 106, 0, 0.1);
            color: var(--primary-light);
            border: 1px solid var(--border-orange);
        }
        .timeline-item:nth-child(even) .timeline-tag {
            background: rgba(0, 229, 204, 0.08);
            color: var(--accent-a);
            border-color: var(--border-cyan);
        }

        /* ========== 成长体系卡片 ========== */
        .growth-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .growth-card {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition);
        }
        .growth-card:hover {
            border-color: var(--border-orange);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .growth-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
            background: rgba(255, 106, 0, 0.12);
            border: 1px solid var(--border-orange);
            color: var(--primary-light);
        }
        .growth-card:nth-child(2) .growth-card-icon {
            background: rgba(0, 229, 204, 0.08);
            border-color: var(--border-cyan);
            color: var(--accent-a);
        }
        .growth-card:nth-child(3) .growth-card-icon {
            background: rgba(123, 47, 190, 0.15);
            border-color: rgba(123, 47, 190, 0.3);
            color: #B78BDD;
        }
        .growth-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .growth-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== 图文区块 ========== */
        .split-section {
            background: var(--bg-secondary);
        }
        .split-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .split-image img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: var(--shadow-default);
        }
        .split-content h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .split-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 14px;
        }
        .split-content ul {
            list-style: none;
            padding: 0;
        }
        .split-content ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .split-content ul li i {
            color: var(--accent-a);
            font-size: 14px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-orange);
        }
        .faq-item.active {
            border-color: var(--border-orange);
            box-shadow: var(--shadow-default);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: background var(--transition);
            gap: 16px;
            user-select: none;
        }
        .faq-question:hover {
            background: rgba(255, 106, 0, 0.06);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            font-size: 14px;
            color: var(--text-muted);
            transition: all var(--transition);
            background: rgba(255, 255, 255, 0.05);
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
            background: rgba(255, 106, 0, 0.1);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-left: 2px solid var(--primary);
            margin-left: 22px;
        }

        /* ========== CTA 表单 ========== */
        .cta-form-section {
            background: var(--bg-primary);
            position: relative;
            overflow: hidden;
        }
        .cta-form-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(123, 47, 190, 0.1), transparent 55%);
            pointer-events: none;
        }
        .cta-form-card {
            position: relative;
            z-index: 2;
            background: var(--bg-tertiary);
            border: 1px solid rgba(0, 229, 204, 0.2);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
            max-width: 960px;
            margin: 0 auto;
        }
        .cta-form-info h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .cta-form-info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .cta-trust-badges {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .cta-trust-badges span {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .cta-trust-badges i {
            color: var(--accent-a);
            font-size: 13px;
        }
        .cta-form-fields {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition);
        }
        .form-group input::placeholder {
            color: var(--text-muted);
        }
        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 12px rgba(255, 106, 0, 0.15);
        }
        .form-group select {
            appearance: none;
            cursor: pointer;
        }
        .form-group select option {
            background: var(--bg-secondary);
            color: var(--text-primary);
        }
        .form-submit-btn {
            padding: 14px 24px;
            background: var(--gradient-primary);
            border-radius: var(--radius-sm);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.3);
            text-align: center;
        }
        .form-submit-btn:hover {
            filter: brightness(1.1);
            box-shadow: 0 6px 24px rgba(255, 106, 0, 0.45);
            color: #fff;
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-orange);
            border-bottom: 1px solid var(--border-orange);
        }
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: center;
        }
        .brand-intro-logo {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            font-size: 28px;
            font-weight: 700;
            padding: 32px;
            background: var(--bg-tertiary);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .brand-intro-logo .logo-icon {
            width: 52px;
            height: 52px;
            font-size: 24px;
            border-radius: 12px;
        }
        .brand-intro-logo strong {
            color: var(--primary);
        }
        .brand-intro-text h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .brand-intro-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0A080F;
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
            font-size: 18px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .compliance p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--primary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .header-actions .nav-cta {
                display: none;
            }
            .stats-strip-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .growth-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .split-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-form-card {
                grid-template-columns: 1fr;
                padding: 28px;
            }
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 20px;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-gap: 40px;
                --nav-height: 60px;
            }
            .container {
                padding: 0 16px;
            }
            .category-hero {
                padding: 32px 0 40px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero-desc {
                font-size: 15px;
            }
            .section-title {
                font-size: 22px;
            }
            .stats-strip-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .growth-grid {
                grid-template-columns: 1fr;
            }
            .timeline-wrapper {
                padding-left: 28px;
            }
            .timeline-wrapper::before {
                left: 10px;
            }
            .timeline-dot {
                left: -28px;
                width: 12px;
                height: 12px;
                top: 8px;
            }
            .timeline-card {
                padding: 16px 18px;
            }
            .timeline-card h3 {
                font-size: 16px;
            }
            .cta-form-card {
                padding: 22px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .brand-intro-logo {
                font-size: 22px;
                padding: 24px;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 20px;
            }
            .category-hero-meta {
                gap: 12px;
                font-size: 12px;
            }
            .timeline-card p {
                font-size: 13px;
            }
            .split-content h2 {
                font-size: 22px;
            }
        }

        /* 移动端菜单抽屉 */
        .mobile-menu-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(8px);
            z-index: 1001;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition);
        }
        .mobile-menu-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-menu {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: var(--bg-primary);
            z-index: 1002;
            padding: 24px 20px;
            transition: right var(--transition);
            overflow-y: auto;
            border-left: 1px solid var(--border-orange);
        }
        .mobile-menu.open {
            right: 0;
        }
        .mobile-menu-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }
        .mobile-menu-close {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 16px;
        }
        .mobile-menu-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu-links a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            border-radius: 8px;
            transition: all var(--transition);
        }
        .mobile-menu-links a:hover,
        .mobile-menu-links a.active {
            background: rgba(255, 106, 0, 0.1);
            color: var(--primary);
        }
        .mobile-menu-cta {
            display: block;
            margin-top: 16px;
            padding: 14px;
            background: var(--gradient-primary);
            border-radius: 8px;
            color: #fff;
            font-weight: 600;
            text-align: center;
        }
        @media (min-width: 1024px) {
            .mobile-menu,
            .mobile-menu-overlay {
                display: none !important;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #FF6A00;
            --primary-light: #FF8C3A;
            --accent-a: #00E5CC;
            --accent-b: #7B2FBE;
            --accent-c: #FFB800;
            --bg-primary: #0D0B14;
            --bg-secondary: #16121F;
            --bg-tertiary: #1E1828;
            --text-primary: #F4F0F8;
            --text-secondary: #A89FB5;
            --text-muted: #6E6478;
            --border-orange: rgba(255, 106, 0, 0.18);
            --border-cyan: rgba(0, 229, 204, 0.15);
            --gradient-primary: linear-gradient(135deg, #FF6A00, #FFB800);
            --gradient-accent: linear-gradient(135deg, #00E5CC, #7B2FBE);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-default: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 48px rgba(255, 106, 0, 0.15);
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            --font-numeric: "DIN Alternate", "Bebas Neue", "Oswald", "Roboto Condensed", sans-serif;
            --nav-height: 72px;
            --nav-height-scrolled: 56px;
            --section-gap: 72px;
            --section-gap-mobile: 48px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: rgba(13, 11, 20, 0.55);
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
            transition: all var(--transition);
        }

        .site-header.scrolled {
            height: var(--nav-height-scrolled);
            background: #0D0B14;
            border-bottom: 1px solid rgba(255, 106, 0, 0.25);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: -0.3px;
            color: var(--text-primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--gradient-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.35);
            flex-shrink: 0;
        }

        .logo-text {
            white-space: nowrap;
        }

        .logo-text strong {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 6px;
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 1.5px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }

        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            transform: scaleX(1);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .search-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 16px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
            background: rgba(255, 255, 255, 0.04);
        }

        .search-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 106, 0, 0.08);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 8px;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.5;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.3);
        }

        .btn-primary:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: 0 6px 24px rgba(255, 106, 0, 0.45);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .btn-outline:hover {
            border-color: var(--accent-a);
            color: var(--accent-a);
            background: rgba(0, 229, 204, 0.06);
        }

        .btn-sm {
            padding: 7px 16px;
            font-size: 13px;
        }

        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(255, 255, 255, 0.04);
            transition: all var(--transition);
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .hamburger:hover {
            border-color: var(--primary);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: -100%;
            width: 80%;
            max-width: 340px;
            height: 100vh;
            background: #0D0B14;
            z-index: 1001;
            padding: 24px;
            border-left: 1px solid rgba(255, 106, 0, 0.2);
            transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            overflow-y: auto;
        }

        .mobile-menu.open {
            right: 0;
        }

        .mobile-menu-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }

        .mobile-menu-close {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-primary);
            font-size: 18px;
            transition: all var(--transition);
        }

        .mobile-menu-close:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .mobile-menu ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-menu ul li a {
            display: block;
            padding: 14px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 8px;
            transition: all var(--transition);
        }

        .mobile-menu ul li a:hover,
        .mobile-menu ul li a.active {
            color: var(--primary);
            background: rgba(255, 106, 0, 0.08);
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1000;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .mobile-overlay.active {
            opacity: 1;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            padding: 110px 0 12px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .breadcrumb-bar a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .breadcrumb-bar a:hover {
            color: var(--primary);
        }

        .breadcrumb-bar .separator {
            margin: 0 8px;
            color: var(--text-muted);
        }

        .breadcrumb-bar .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* ========== Hero ========== */
        .category-hero {
            position: relative;
            padding: 40px 0 56px;
            min-height: 420px;
            display: flex;
            align-items: center;
            background-image: linear-gradient(135deg, rgba(13, 11, 20, 0.9) 0%, rgba(13, 11, 20, 0.6) 50%, rgba(13, 11, 20, 0.85) 100%), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            border-bottom: 1px solid var(--border-orange);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 11, 20, 0.7) 0%, rgba(13, 11, 20, 0.3) 50%, rgba(13, 11, 20, 0.9) 100%);
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-c);
            background: rgba(255, 184, 0, 0.1);
            border: 1px solid rgba(255, 184, 0, 0.25);
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .hero-tag .dot {
            width: 6px;
            height: 6px;
            background: var(--accent-c);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(1.6); }
        }

        .category-hero h1 {
            font-size: 40px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.25;
            margin-bottom: 18px;
            color: var(--text-primary);
        }

        .category-hero h1 .highlight {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 560px;
            margin-bottom: 28px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .hero-stats-panel {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .stat-mini-card {
            background: rgba(30, 24, 40, 0.8);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 106, 0, 0.2);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
        }

        .stat-mini-card:hover {
            border-color: rgba(255, 106, 0, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .stat-mini-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .stat-mini-icon.orange {
            background: rgba(255, 106, 0, 0.12);
            color: var(--primary);
        }

        .stat-mini-icon.cyan {
            background: rgba(0, 229, 204, 0.12);
            color: var(--accent-a);
        }

        .stat-mini-icon.purple {
            background: rgba(123, 47, 190, 0.12);
            color: var(--accent-b);
        }

        .stat-mini-info {
            flex: 1;
        }

        .stat-mini-info .stat-value {
            font-family: var(--font-numeric);
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .stat-mini-info .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* ========== Section 通用 ========== */
        section {
            padding: var(--section-gap) 0;
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-a);
            background: rgba(0, 229, 204, 0.08);
            border-radius: 4px;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.3px;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
        }

        /* ========== 简介区 ========== */
        .intro-section {
            background: var(--bg-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .intro-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .intro-text p strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        .intro-highlights {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .highlight-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-orange);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition);
        }

        .highlight-card:hover {
            border-color: rgba(255, 106, 0, 0.35);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .highlight-card .hc-icon {
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .highlight-card h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .highlight-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== 瀑布流 ========== */
        .masonry-section {
            background: var(--bg-primary);
        }

        .masonry-grid {
            columns: 3;
            column-gap: 24px;
        }

        .masonry-item {
            break-inside: avoid;
            margin-bottom: 24px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-orange);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
            display: inline-block;
            width: 100%;
        }

        .masonry-item:hover {
            border-color: rgba(255, 106, 0, 0.35);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .masonry-card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }

        .masonry-card-img.tall {
            aspect-ratio: 16/13;
        }

        .masonry-card-img.short {
            aspect-ratio: 16/7;
        }

        .masonry-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }

        .masonry-item:hover .masonry-card-img img {
            transform: scale(1.05);
        }

        .masonry-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            color: #fff;
            background: var(--gradient-primary);
            border-radius: 4px;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .masonry-card-body {
            padding: 20px 22px 22px;
        }

        .masonry-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 10px;
            transition: color var(--transition);
        }

        .masonry-item:hover .masonry-card-title {
            color: var(--primary);
        }

        .masonry-card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
        }

        .masonry-card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 14px;
        }

        .tag {
            display: inline-block;
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent-a);
            background: rgba(0, 229, 204, 0.08);
            border-radius: 4px;
            border: 1px solid rgba(0, 229, 204, 0.18);
            transition: all var(--transition);
        }

        .tag.orange {
            color: var(--primary-light);
            background: rgba(255, 106, 0, 0.08);
            border-color: rgba(255, 106, 0, 0.2);
        }

        .tag.purple {
            color: #b98aee;
            background: rgba(123, 47, 190, 0.1);
            border-color: rgba(123, 47, 190, 0.22);
        }

        .tag.yellow {
            color: var(--accent-c);
            background: rgba(255, 184, 0, 0.08);
            border-color: rgba(255, 184, 0, 0.2);
        }

        .tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 106, 0, 0.1);
        }

        .masonry-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-a);
            transition: all var(--transition);
        }

        .masonry-card-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .masonry-card-link:hover {
            color: var(--primary);
        }

        .masonry-card-link:hover i {
            transform: translateX(4px);
        }

        /* ========== 数据看板 ========== */
        .stats-section {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .stats-dashboard {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .stat-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-cyan);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-accent);
        }

        .stat-card:nth-child(2)::before {
            background: var(--gradient-primary);
        }

        .stat-card:nth-child(3)::before {
            background: linear-gradient(135deg, #FFB800, #FF6A00);
        }

        .stat-card:nth-child(4)::before {
            background: linear-gradient(135deg, #7B2FBE, #FF6A00);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 48px rgba(0, 229, 204, 0.12);
            border-color: rgba(0, 229, 204, 0.3);
        }

        .stat-card-icon {
            font-size: 26px;
            color: var(--accent-a);
            margin-bottom: 12px;
        }

        .stat-card:nth-child(2) .stat-card-icon {
            color: var(--primary);
        }

        .stat-card:nth-child(3) .stat-card-icon {
            color: var(--accent-c);
        }

        .stat-card:nth-child(4) .stat-card-icon {
            color: #b98aee;
        }

        .stat-card-number {
            font-family: var(--font-numeric);
            font-size: 40px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
            letter-spacing: 0.5px;
            text-shadow: 0 0 24px rgba(255, 106, 0, 0.25);
            margin-bottom: 6px;
        }

        .stat-card-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: #4ade80;
            margin-bottom: 8px;
        }

        .stat-card-trend.down {
            color: #f87171;
        }

        .stat-card-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .stat-card-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== 深度内容区 ========== */
        .depth-section {
            background: var(--bg-primary);
        }

        .depth-content {
            max-width: 860px;
            margin: 0 auto;
        }

        .depth-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            margin-top: 32px;
            letter-spacing: -0.2px;
            line-height: 1.5;
        }

        .depth-content h3:first-child {
            margin-top: 0;
        }

        .depth-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .depth-content p strong {
            color: var(--text-primary);
        }

        .depth-quote {
            background: var(--bg-tertiary);
            border-left: 3px solid var(--primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 18px 22px;
            margin: 24px 0;
            font-size: 15px;
            color: var(--text-primary);
            line-height: 1.85;
            font-style: italic;
        }

        .depth-data-inline {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
            margin: 24px 0;
        }

        .depth-data-inline .ddi-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-orange);
            border-radius: var(--radius-sm);
            padding: 16px;
            text-align: center;
        }

        .ddi-card .ddi-num {
            font-family: var(--font-numeric);
            font-size: 26px;
            font-weight: 700;
            color: var(--accent-a);
            line-height: 1.3;
        }

        .ddi-card .ddi-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== 流程步骤 ========== */
        .flow-section {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }

        .flow-step {
            background: var(--bg-tertiary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
        }

        .flow-step:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .flow-step-num {
            width: 36px;
            height: 36px;
            margin: 0 auto 12px;
            background: var(--gradient-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-numeric);
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            box-shadow: 0 4px 12px rgba(255, 106, 0, 0.3);
        }

        .flow-step h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .flow-step p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* ========== 品牌合作区 ========== */
        .brand-section {
            background: var(--bg-primary);
        }

        .brand-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .brand-image img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-default);
        }

        .brand-info h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.2px;
        }

        .brand-info p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .brand-points {
            list-style: none;
            margin-top: 18px;
        }

        .brand-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .brand-points li i {
            color: var(--accent-a);
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--bg-tertiary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(255, 106, 0, 0.2);
        }

        .faq-item.active {
            border-color: rgba(255, 106, 0, 0.35);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            transition: all var(--transition);
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            background: rgba(255, 106, 0, 0.06);
        }

        .faq-question .q-text {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
        }

        .faq-toggle {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--text-muted);
            transition: all var(--transition);
            font-size: 14px;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
        }

        /* ========== CTA 表单 ========== */
        .cta-section {
            background: var(--bg-primary);
            padding-bottom: 100px;
        }

        .cta-wrapper {
            background: var(--bg-tertiary);
            border: 1px solid rgba(0, 229, 204, 0.2);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            box-shadow: var(--shadow-default);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cta-info h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .cta-info p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .cta-trust {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }

        .cta-trust-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .cta-trust-item i {
            color: var(--accent-a);
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .cta-form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .cta-form input,
        .cta-form select,
        .cta-form textarea {
            width: 100%;
            padding: 12px 16px;
            font-size: 14px;
            color: var(--text-primary);
            background: rgba(13, 11, 20, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .cta-form input::placeholder,
        .cta-form textarea::placeholder {
            color: var(--text-muted);
        }

        .cta-form input:focus,
        .cta-form select:focus,
        .cta-form textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 106, 0, 0.12);
        }

        .cta-form textarea {
            min-height: 80px;
            resize: vertical;
        }

        .cta-form .btn {
            width: 100%;
            padding: 13px;
            font-size: 15px;
            margin-top: 4px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0A080F;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 50px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 260px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: all var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .compliance p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .footer-bottom-links a:hover {
            color: var(--primary);
        }

        .footer-bottom-links span {
            color: var(--text-muted);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1200px) {
            .nav-links li a {
                padding: 8px 10px;
                font-size: 14px;
            }
            .stats-dashboard {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-steps {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 1023px) {
            .category-hero .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-stats-panel {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .stat-mini-card {
                flex: 1;
                min-width: 200px;
            }
            .masonry-grid {
                columns: 2;
            }
            .intro-grid {
                grid-template-columns: 1fr;
            }
            .brand-grid {
                grid-template-columns: 1fr;
            }
            .cta-wrapper {
                grid-template-columns: 1fr;
                padding: 32px 24px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-gap: 40px;
                --nav-height: 60px;
            }

            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu,
            .mobile-overlay {
                display: block;
            }
            .header-actions .search-btn {
                display: none;
            }

            .container {
                padding: 0 18px;
            }

            .breadcrumb-bar {
                padding-top: 90px;
            }

            .category-hero h1 {
                font-size: 28px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-stats-panel {
                flex-direction: column;
            }
            .stat-mini-card {
                min-width: 100%;
            }

            .masonry-grid {
                columns: 1;
            }
            .stats-dashboard {
                grid-template-columns: 1fr;
            }
            .flow-steps {
                grid-template-columns: 1fr 1fr;
            }
            .depth-data-inline {
                grid-template-columns: 1fr;
            }
            .cta-form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section-title {
                font-size: 24px;
            }
            .highlight-card {
                padding: 16px;
            }
        }

        @media (max-width: 520px) {
            .flow-steps {
                grid-template-columns: 1fr;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn {
                width: 100%;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .cta-wrapper {
                padding: 24px 16px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #FF6A00;
            --primary-light: #FF8C3A;
            --accent-a: #00E5CC;
            --accent-b: #7B2FBE;
            --accent-c: #FFB800;
            --bg-primary: #0D0B14;
            --bg-secondary: #16121F;
            --bg-tertiary: #1E1828;
            --text-primary: #F4F0F8;
            --text-secondary: #A89FB5;
            --text-muted: #6E6478;
            --border-orange: rgba(255, 106, 0, 0.18);
            --border-cyan: rgba(0, 229, 204, 0.15);
            --gradient-primary: linear-gradient(135deg, #FF6A00, #FFB800);
            --gradient-accent: linear-gradient(135deg, #00E5CC, #7B2FBE);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-default: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 48px rgba(255, 106, 0, 0.15);
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            --font-numeric: "DIN Alternate", "Bebas Neue", "Oswald", "Roboto Condensed", sans-serif;
            --nav-height: 72px;
            --nav-height-scrolled: 56px;
            --section-gap: 88px;
            --section-gap-mobile: 48px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: rgba(13, 11, 20, 0.55);
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
            transition: all var(--transition);
        }
        .site-header.scrolled {
            height: var(--nav-height-scrolled);
            background: #0D0B14;
            border-bottom: 1px solid rgba(255, 106, 0, 0.25);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: -0.3px;
            color: var(--text-primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--gradient-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.35);
            flex-shrink: 0;
        }
        .logo-text {
            white-space: nowrap;
        }
        .logo-text strong {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            flex-wrap: nowrap;
        }
        .nav-links li a {
            display: block;
            padding: 8px 13px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 6px;
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
        }
        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 13px;
            right: 13px;
            height: 1.5px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            transform: scaleX(1);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .search-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
            font-size: 15px;
        }
        .search-btn:hover {
            color: var(--accent-a);
            border-color: var(--accent-a);
            background: rgba(0, 229, 204, 0.08);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: var(--gradient-primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.3);
        }
        .header-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: 0 6px 24px rgba(255, 106, 0, 0.45);
        }
        .hamburger {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 20px;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .hamburger:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ========== 移动端导航抽屉 ========== */
        .mobile-nav-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(13, 11, 20, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            display: flex;
            flex-direction: column;
            padding: 100px 32px 40px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .mobile-nav-overlay.open {
            opacity: 1;
            visibility: visible;
        }
        .mobile-nav-overlay .mobile-link {
            display: block;
            padding: 16px 0;
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
        }
        .mobile-nav-overlay .mobile-link:hover,
        .mobile-nav-overlay .mobile-link.active {
            color: var(--primary);
            padding-left: 8px;
        }
        .mobile-nav-overlay .mobile-close {
            position: absolute;
            top: 24px;
            right: 28px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--text-primary);
            transition: all var(--transition);
        }
        .mobile-nav-overlay .mobile-close:hover {
            color: var(--primary);
            background: rgba(255, 106, 0, 0.15);
        }

        /* ========== Hero ========== */
        .category-hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            padding-top: var(--nav-height);
            background-image: linear-gradient(rgba(13, 11, 20, 0.8), rgba(13, 11, 20, 0.92)), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-primary), transparent);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent-a);
        }
        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 11px;
        }
        .breadcrumb .current {
            color: var(--primary);
        }
        .category-hero h1 {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.25;
            margin-bottom: 18px;
            color: var(--text-primary);
        }
        .category-hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }
        .category-hero .hero-subtitle {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .hero-tag-group {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(255, 106, 0, 0.12);
            color: var(--primary-light);
            border: 1px solid var(--border-orange);
            transition: all var(--transition);
        }
        .hero-tag:hover {
            background: rgba(255, 106, 0, 0.2);
            color: var(--primary);
        }
        .hero-tag.cyan {
            background: rgba(0, 229, 204, 0.1);
            color: var(--accent-a);
            border-color: var(--border-cyan);
        }
        .hero-tag.cyan:hover {
            background: rgba(0, 229, 204, 0.18);
            color: var(--accent-a);
        }

        /* ========== 统计横条 ========== */
        .stat-strip {
            margin-top: -60px;
            position: relative;
            z-index: 5;
            padding-bottom: 20px;
        }
        .stat-strip-inner {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 106, 0, 0.2);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            box-shadow: var(--shadow-default);
            position: relative;
            overflow: hidden;
        }
        .stat-strip-inner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-primary);
        }
        .stat-strip-item {
            text-align: center;
            padding: 8px 12px;
            position: relative;
        }
        .stat-strip-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -10px;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 48px;
            background: rgba(255, 255, 255, 0.08);
        }
        .stat-strip-number {
            font-family: var(--font-numeric);
            font-size: 34px;
            font-weight: 700;
            color: var(--accent-a);
            text-shadow: 0 0 24px rgba(0, 229, 204, 0.4);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-strip-number.orange {
            color: var(--primary);
            text-shadow: 0 0 24px rgba(255, 106, 0, 0.4);
        }
        .stat-strip-number.amber {
            color: var(--accent-c);
            text-shadow: 0 0 24px rgba(255, 184, 0, 0.4);
        }
        .stat-strip-number.purple {
            color: var(--accent-b);
            text-shadow: 0 0 24px rgba(123, 47, 190, 0.4);
        }
        .stat-strip-label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-tight {
            padding: 40px 0;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header.center {
            text-align: center;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-a);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 12px;
        }
        .section-label.orange {
            color: var(--primary);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.3px;
            line-height: 1.35;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.8;
        }
        .section-header.center .section-desc {
            margin: 0 auto;
        }

        /* ========== 数据列表（深色背景） ========== */
        .data-list-section {
            background: var(--bg-primary);
            position: relative;
        }
        .data-list-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 50% -20%, rgba(123, 47, 190, 0.12), transparent 60%);
            pointer-events: none;
        }
        .data-list-section .container {
            position: relative;
            z-index: 1;
        }
        .data-list-wrap {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .data-list-item {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 106, 0, 0.14);
            border-radius: var(--radius-md);
            padding: 22px 28px;
            display: flex;
            align-items: center;
            gap: 22px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .data-list-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: var(--gradient-primary);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .data-list-item:hover {
            border-color: rgba(255, 106, 0, 0.35);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .data-list-item:hover::before {
            opacity: 1;
        }
        .data-rank {
            font-family: var(--font-numeric);
            font-size: 36px;
            font-weight: 700;
            min-width: 60px;
            text-align: center;
            color: var(--text-muted);
            transition: color var(--transition);
            flex-shrink: 0;
        }
        .data-list-item:hover .data-rank {
            color: var(--primary);
        }
        .data-rank.top1 {
            color: var(--accent-c);
            text-shadow: 0 0 20px rgba(255, 184, 0, 0.5);
        }
        .data-rank.top2 {
            color: var(--accent-a);
            text-shadow: 0 0 20px rgba(0, 229, 204, 0.4);
        }
        .data-rank.top3 {
            color: var(--primary);
            text-shadow: 0 0 20px rgba(255, 106, 0, 0.4);
        }
        .data-content {
            flex: 1;
            min-width: 0;
        }
        .data-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .data-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .data-metrics {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }
        .data-metric {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            font-family: var(--font-numeric);
            background: rgba(0, 229, 204, 0.08);
            color: var(--accent-a);
            border: 1px solid var(--border-cyan);
            white-space: nowrap;
        }
        .data-metric.orange {
            background: rgba(255, 106, 0, 0.1);
            color: var(--primary-light);
            border-color: var(--border-orange);
        }
        .data-metric.amber {
            background: rgba(255, 184, 0, 0.1);
            color: var(--accent-c);
            border-color: rgba(255, 184, 0, 0.2);
        }
        .data-load-more-wrap {
            text-align: center;
            margin-top: 32px;
        }
        .btn-load-more {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 40px;
            background: transparent;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .btn-load-more:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(255, 106, 0, 0.06);
            box-shadow: 0 4px 20px rgba(255, 106, 0, 0.15);
        }
        .btn-load-more i {
            transition: transform var(--transition);
        }
        .btn-load-more:hover i {
            transform: rotate(180deg);
        }

        /* ========== 技术能力卡片 ========== */
        .tech-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tech-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-orange);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .tech-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 24px;
            right: 24px;
            height: 3px;
            background: var(--gradient-primary);
            border-radius: 0 0 4px 4px;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .tech-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 106, 0, 0.35);
        }
        .tech-card:hover::before {
            opacity: 1;
        }
        .tech-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
            background: rgba(255, 106, 0, 0.12);
            color: var(--primary);
            border: 1px solid var(--border-orange);
            transition: all var(--transition);
        }
        .tech-card:hover .tech-card-icon {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(255, 106, 0, 0.35);
        }
        .tech-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .tech-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== 深度内容图文区 ========== */
        .deep-content-section {
            background: var(--bg-secondary);
            position: relative;
            overflow: hidden;
        }
        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .deep-content-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 18px;
            line-height: 1.4;
        }
        .deep-content-text h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 10px;
            margin-top: 22px;
            line-height: 1.4;
        }
        .deep-content-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .deep-content-text blockquote {
            border-left: 3px solid var(--primary);
            padding: 14px 20px;
            margin: 18px 0;
            background: rgba(255, 106, 0, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-size: 15px;
            color: var(--text-primary);
            line-height: 1.7;
        }
        .deep-content-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-default);
        }
        .deep-content-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
            aspect-ratio: 16 / 11;
        }
        .deep-content-image .img-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(to top, rgba(13, 11, 20, 0.8), transparent);
            pointer-events: none;
        }
        .img-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.4);
        }

        /* ========== 对比区 ========== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .compare-card {
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .compare-card.old {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .compare-card.new {
            background: var(--bg-tertiary);
            border: 1px solid rgba(255, 106, 0, 0.3);
            box-shadow: var(--shadow-default);
        }
        .compare-card.new::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-primary);
        }
        .compare-card h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .compare-card.old h4 {
            color: var(--text-muted);
        }
        .compare-card.new h4 {
            color: var(--primary);
        }
        .compare-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .compare-list li i {
            margin-top: 5px;
            font-size: 12px;
            flex-shrink: 0;
        }
        .compare-card.old .compare-list li i {
            color: var(--text-muted);
        }
        .compare-card.new .compare-list li i {
            color: var(--accent-a);
        }

        /* ========== 流程步骤 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-orange);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 106, 0, 0.35);
        }
        .step-num {
            font-family: var(--font-numeric);
            font-size: 40px;
            font-weight: 700;
            color: rgba(255, 106, 0, 0.25);
            margin-bottom: 10px;
            line-height: 1;
            transition: color var(--transition);
        }
        .step-item:hover .step-num {
            color: var(--primary);
        }
        .step-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(255, 106, 0, 0.25);
        }
        .faq-item.open {
            border-color: rgba(255, 106, 0, 0.4);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: all var(--transition);
            gap: 16px;
            user-select: none;
        }
        .faq-question:hover {
            background: rgba(255, 106, 0, 0.06);
        }
        .faq-item.open .faq-question {
            background: rgba(255, 106, 0, 0.08);
            color: var(--primary);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 106, 0, 0.1);
            color: var(--primary);
            font-size: 14px;
            transition: transform var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--gradient-primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-left: 2px solid var(--primary);
            padding-left: 14px;
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro-section {
            background: var(--bg-secondary);
            padding: 40px 0;
            border-top: 1px solid rgba(255, 106, 0, 0.1);
            border-bottom: 1px solid rgba(255, 106, 0, 0.1);
        }
        .brand-intro-wrap {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .brand-intro-mark {
            width: 72px;
            height: 72px;
            background: var(--gradient-primary);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            color: #fff;
            box-shadow: 0 6px 24px rgba(255, 106, 0, 0.35);
            flex-shrink: 0;
        }
        .brand-intro-text h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .brand-intro-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== CTA 表单 ========== */
        .cta-section {
            padding: 60px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 500px;
            background: radial-gradient(ellipse, rgba(123, 47, 190, 0.15), transparent 65%);
            pointer-events: none;
        }
        .cta-card {
            position: relative;
            z-index: 1;
            background: var(--bg-tertiary);
            border: 1px solid rgba(0, 229, 204, 0.2);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            box-shadow: var(--shadow-default);
        }
        .cta-info h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .cta-info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .cta-trust-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .cta-trust-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .cta-trust-list li i {
            color: var(--accent-a);
            font-size: 14px;
        }
        .cta-form .form-group {
            margin-bottom: 16px;
        }
        .cta-form label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }
        .cta-form input,
        .cta-form select,
        .cta-form textarea {
            width: 100%;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition);
        }
        .cta-form input::placeholder,
        .cta-form textarea::placeholder {
            color: var(--text-muted);
        }
        .cta-form input:focus,
        .cta-form select:focus,
        .cta-form textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 106, 0, 0.12);
        }
        .cta-form select {
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236E6478' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
        }
        .cta-form select option {
            background: var(--bg-tertiary);
            color: var(--text-primary);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .btn-submit {
            width: 100%;
            padding: 14px 20px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.3);
            margin-top: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn-submit:hover {
            filter: brightness(1.1);
            box-shadow: 0 8px 28px rgba(255, 106, 0, 0.45);
            transform: translateY(-1px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0A080F;
            color: var(--text-muted);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255, 106, 0, 0.12);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr 1.3fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
            font-size: 18px;
        }
        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 280px;
            margin-bottom: 14px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            font-size: 15px;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: rgba(255, 106, 0, 0.15);
            color: var(--primary);
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--primary);
        }
        .compliance p {
            font-size: 12px;
            line-height: 1.8;
            color: var(--text-muted);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 12px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--accent-a);
        }
        .footer-bottom-links span {
            color: var(--text-muted);
            opacity: 0.5;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1279px) {
            .nav-links li a {
                padding: 8px 9px;
                font-size: 13px;
            }
            .header-cta {
                padding: 9px 16px;
                font-size: 13px;
            }
            .category-hero h1 {
                font-size: 36px;
            }
            .stat-strip-number {
                font-size: 28px;
            }
        }
        @media (max-width: 1023px) {
            :root {
                --nav-height: 64px;
                --section-gap: 56px;
            }
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .category-hero {
                min-height: 440px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero .hero-subtitle {
                font-size: 16px;
            }
            .stat-strip-inner {
                grid-template-columns: repeat(2, 1fr);
                padding: 22px 20px;
            }
            .stat-strip-item:nth-child(2)::after {
                display: none;
            }
            .stat-strip-item:not(:last-child)::after {
                right: -8px;
            }
            .tech-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .compare-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-card {
                grid-template-columns: 1fr;
                padding: 28px 22px;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .data-list-item {
                flex-wrap: wrap;
                gap: 12px;
                padding: 18px 20px;
            }
            .data-rank {
                font-size: 28px;
                min-width: 48px;
            }
            .data-metrics {
                width: 100%;
                padding-left: 60px;
            }
        }
        @media (max-width: 767px) {
            :root {
                --section-gap: 40px;
                --nav-height: 56px;
            }
            .container {
                padding: 0 16px;
            }
            .category-hero {
                min-height: 380px;
                padding-top: calc(var(--nav-height) + 20px);
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero .hero-subtitle {
                font-size: 14px;
                margin-bottom: 20px;
            }
            .hero-tag {
                font-size: 12px;
                padding: 5px 12px;
            }
            .stat-strip {
                margin-top: -40px;
            }
            .stat-strip-inner {
                grid-template-columns: 1fr 1fr;
                padding: 18px 14px;
                gap: 14px;
            }
            .stat-strip-number {
                font-size: 24px;
            }
            .stat-strip-label {
                font-size: 11px;
            }
            .stat-strip-item:not(:last-child)::after {
                display: none;
            }
            .section-title {
                font-size: 22px;
            }
            .section-desc {
                font-size: 14px;
            }
            .data-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 16px;
            }
            .data-rank {
                font-size: 24px;
                min-width: auto;
            }
            .data-content h3 {
                font-size: 16px;
            }
            .data-metrics {
                padding-left: 0;
                flex-wrap: wrap;
            }
            .data-metric {
                font-size: 12px;
                padding: 6px 10px;
            }
            .tech-cards-grid {
                grid-template-columns: 1fr;
            }
            .compare-card {
                padding: 20px 16px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding-bottom: 14px;
            }
            .brand-intro-wrap {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .brand-intro-mark {
                width: 56px;
                height: 56px;
                font-size: 24px;
                border-radius: 14px;
            }
            .cta-card {
                padding: 20px 16px;
            }
            .form-row {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .btn-load-more {
                width: 100%;
                justify-content: center;
                padding: 13px 20px;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #FF6A00;
            --primary-light: #FF8C3A;
            --accent-a: #00E5CC;
            --accent-b: #7B2FBE;
            --accent-c: #FFB800;
            --bg-primary: #0D0B14;
            --bg-secondary: #16121F;
            --bg-tertiary: #1E1828;
            --text-primary: #F4F0F8;
            --text-secondary: #A89FB5;
            --text-muted: #6E6478;
            --border-orange: rgba(255, 106, 0, 0.18);
            --border-cyan: rgba(0, 229, 204, 0.15);
            --gradient-primary: linear-gradient(135deg, #FF6A00, #FFB800);
            --gradient-accent: linear-gradient(135deg, #00E5CC, #7B2FBE);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-default: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 48px rgba(255, 106, 0, 0.15);
            --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
            --font-numeric: "DIN Alternate", "Bebas Neue", "Oswald", "Roboto Condensed", sans-serif;
            --nav-height: 72px;
            --nav-height-scrolled: 56px;
            --section-gap: 56px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: rgba(13, 11, 20, 0.55);
            backdrop-filter: blur(16px) saturate(140%);
            -webkit-backdrop-filter: blur(16px) saturate(140%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
            transition: all var(--transition);
        }

        .site-header.scrolled {
            height: var(--nav-height-scrolled);
            background: #0D0B14;
            border-bottom: 1px solid rgba(255, 106, 0, 0.25);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: -0.3px;
            color: var(--text-primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--gradient-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.35);
            flex-shrink: 0;
        }

        .logo-text {
            white-space: nowrap;
        }

        .logo-text strong {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 6px;
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 1.5px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }

        .nav-links li a:hover::after,
        .nav-links li a.active::after {
            transform: scaleX(1);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .search-btn {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: all var(--transition);
            border: 1px solid var(--border-orange);
            background: rgba(255, 106, 0, 0.06);
        }

        .search-btn:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(255, 106, 0, 0.12);
        }

        .nav-cta {
            padding: 10px 20px;
            background: var(--gradient-primary);
            border-radius: 8px;
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.25);
        }

        .nav-cta:hover {
            color: #fff;
            filter: brightness(1.1);
            box-shadow: 0 6px 24px rgba(255, 106, 0, 0.4);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: 8px;
            border: 1px solid var(--border-orange);
            background: rgba(255, 106, 0, 0.06);
            transition: all var(--transition);
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(13, 11, 20, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-orange);
            padding: 20px 28px;
            z-index: 999;
            flex-direction: column;
            gap: 6px;
            transform: translateY(-100%);
            transition: transform var(--transition);
        }

        .mobile-menu.open {
            transform: translateY(0);
        }

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 8px;
            transition: all var(--transition);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
            background: rgba(255, 106, 0, 0.08);
        }

        /* ========== Hero / Banner ========== */
        .page-hero {
            position: relative;
            padding: 140px 0 80px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 11, 20, 0.88) 0%, rgba(13, 11, 20, 0.72) 50%, rgba(13, 11, 20, 0.95) 100%);
            z-index: 1;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(255, 106, 0, 0.12) 0%, transparent 60%);
            z-index: 1;
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .sep {
            color: var(--text-muted);
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        .page-hero h1 {
            font-size: 38px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .page-hero h1 span {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .page-hero .hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.9;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 20px;
        }

        .hero-tags .tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(255, 106, 0, 0.12);
            color: var(--primary-light);
            border: 1px solid var(--border-orange);
        }

        .hero-tags .tag.cyan {
            background: rgba(0, 229, 204, 0.1);
            color: var(--accent-a);
            border-color: var(--border-cyan);
        }

        /* ========== 非对称布局主区 ========== */
        .asymmetric-section {
            padding: var(--section-gap) 0;
        }

        .asymmetric-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 32px;
            align-items: start;
        }

        .left-large-cards {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .large-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-orange);
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
        }

        .large-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(255, 106, 0, 0.35);
        }

        .large-card .card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: 0;
        }

        .large-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }

        .large-card:hover .card-image img {
            transform: scale(1.05);
        }

        .large-card .card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 6px 14px;
            background: var(--gradient-primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            border-radius: 6px;
            z-index: 2;
        }

        .large-card .card-body {
            padding: 24px 28px 28px;
        }

        .large-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .large-card .card-meta .date {
            color: var(--accent-b);
            font-weight: 600;
        }

        .large-card .card-meta .tag-small {
            padding: 3px 10px;
            border-radius: 4px;
            background: rgba(0, 229, 204, 0.1);
            color: var(--accent-a);
            font-size: 12px;
            font-weight: 500;
        }

        .large-card h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .large-card h3 a:hover {
            color: var(--primary);
        }

        .large-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .large-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-a);
            transition: all var(--transition);
        }

        .large-card .read-more i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .large-card .read-more:hover {
            color: var(--primary);
        }

        .large-card .read-more:hover i {
            transform: translateX(4px);
        }

        .right-small-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-cyan);
            box-shadow: var(--shadow-default);
        }

        .right-small-list .list-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 14px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .right-small-list .list-header h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .right-small-list .list-header .live-dot {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--accent-a);
            font-weight: 500;
        }

        .right-small-list .live-dot::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-a);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.6);
            }
        }

        .right-small-list ul {
            list-style: none;
            display: flex;
            flex-direction: column;
        }

        .right-small-list ul li {
            padding: 14px 8px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: all var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .right-small-list ul li:last-child {
            border-bottom: none;
        }

        .right-small-list ul li:hover {
            background: rgba(255, 106, 0, 0.05);
            border-radius: 8px;
        }

        .right-small-list .rank-num {
            font-family: var(--font-numeric);
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            min-width: 30px;
            text-align: center;
            flex-shrink: 0;
            line-height: 1.4;
        }

        .right-small-list .rank-num.alt {
            color: var(--accent-a);
        }

        .right-small-list .rank-num.purple {
            color: var(--accent-b);
        }

        .right-small-list .item-content a {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.6;
            display: block;
            transition: color var(--transition);
        }

        .right-small-list .item-content a:hover {
            color: var(--primary);
        }

        .right-small-list .item-content .item-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-top: 2px;
        }

        /* ========== 数据指标区 ========== */
        .section-block {
            padding: var(--section-gap) 0;
        }

        .section-block.narrow-gap {
            padding-top: 20px;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.3px;
            line-height: 1.4;
            color: var(--text-primary);
        }

        .section-header h2 .highlight {
            color: var(--primary);
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 500px;
            line-height: 1.8;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-orange);
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--gradient-primary);
            opacity: 0.7;
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .stat-card .stat-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
            background: rgba(255, 106, 0, 0.12);
            color: var(--primary);
        }

        .stat-card .stat-icon.cyan {
            background: rgba(0, 229, 204, 0.1);
            color: var(--accent-a);
        }

        .stat-card .stat-icon.purple {
            background: rgba(123, 47, 190, 0.15);
            color: #b889e8;
        }

        .stat-card .stat-icon.amber {
            background: rgba(255, 184, 0, 0.12);
            color: var(--accent-c);
        }

        .stat-card .stat-number {
            font-family: var(--font-numeric);
            font-size: 38px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--accent-a);
            text-shadow: 0 0 24px rgba(0, 229, 204, 0.35);
            margin-bottom: 6px;
        }

        .stat-card .stat-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .stat-card .stat-desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .stat-card .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            margin-top: 8px;
        }

        .stat-card .stat-trend.up {
            color: #4ade80;
        }

        .stat-card .stat-trend.down {
            color: #f87171;
        }

        /* ========== 社区话题热点区 ========== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-cyan);
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 229, 204, 0.3);
        }

        .topic-card .topic-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
        }

        .topic-card .topic-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(0, 229, 204, 0.1);
            color: var(--accent-a);
        }

        .topic-card .topic-tag.orange {
            background: rgba(255, 106, 0, 0.12);
            color: var(--primary);
        }

        .topic-card .topic-tag.purple {
            background: rgba(123, 47, 190, 0.15);
            color: #b889e8;
        }

        .topic-card .topic-heat {
            font-family: var(--font-numeric);
            font-size: 14px;
            color: var(--accent-c);
            font-weight: 600;
        }

        .topic-card h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .topic-card h3 a:hover {
            color: var(--primary);
        }

        .topic-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 深度内容区 ========== */
        .deep-content {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            border: 1px solid var(--border-orange);
            box-shadow: var(--shadow-default);
        }

        .deep-content h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 18px;
            color: var(--text-primary);
        }

        .deep-content h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.5;
            margin: 28px 0 12px;
            color: var(--text-primary);
        }

        .deep-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 2;
            margin-bottom: 14px;
        }

        .deep-content blockquote {
            border-left: 3px solid var(--primary);
            padding: 16px 20px;
            margin: 20px 0;
            background: rgba(255, 106, 0, 0.06);
            border-radius: 0 8px 8px 0;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            font-style: italic;
        }

        .deep-content .inner-data-card {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-tertiary);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin: 20px 0;
            border: 1px solid var(--border-cyan);
        }

        .deep-content .inner-data-card .data-num {
            font-family: var(--font-numeric);
            font-size: 36px;
            font-weight: 700;
            color: var(--accent-a);
            text-shadow: 0 0 20px rgba(0, 229, 204, 0.3);
            flex-shrink: 0;
        }

        .deep-content .inner-data-card .data-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== FAQ区 ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-orange);
            transition: all var(--transition);
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: rgba(255, 106, 0, 0.35);
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: 0 4px 20px rgba(255, 106, 0, 0.12);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            gap: 16px;
            transition: all var(--transition);
        }

        .faq-question:hover {
            background: rgba(255, 106, 0, 0.08);
        }

        .faq-question h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            flex: 1;
        }

        .faq-toggle {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: all var(--transition);
            flex-shrink: 0;
            border: 1px solid var(--border-orange);
            background: rgba(255, 106, 0, 0.08);
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
            background: var(--gradient-primary);
            color: #fff;
            border-color: transparent;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== CTA区 ========== */
        .cta-section {
            padding: var(--section-gap) 0;
        }

        .cta-wrapper {
            background: var(--bg-tertiary);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            border: 1px solid var(--border-cyan);
            box-shadow: var(--shadow-default);
            position: relative;
            overflow: hidden;
        }

        .cta-wrapper::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 106, 0, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-wrapper h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
            position: relative;
            z-index: 1;
        }

        .cta-wrapper .cta-desc {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr auto;
            gap: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-form input,
        .cta-form select {
            padding: 14px 16px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition);
        }

        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 106, 0, 0.15);
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-form input::placeholder {
            color: var(--text-muted);
        }

        .cta-form select {
            color: var(--text-secondary);
            appearance: auto;
            cursor: pointer;
        }

        .cta-form select option {
            background: var(--bg-tertiary);
            color: var(--text-primary);
        }

        .cta-submit {
            padding: 14px 28px;
            background: var(--gradient-primary);
            border-radius: 8px;
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.3);
            cursor: pointer;
        }

        .cta-submit:hover {
            filter: brightness(1.1);
            box-shadow: 0 6px 28px rgba(255, 106, 0, 0.45);
            transform: translateY(-1px);
        }

        .cta-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 18px;
            position: relative;
            z-index: 1;
        }

        .cta-trust span {
            font-size: 12px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .cta-trust i {
            color: var(--accent-a);
            font-size: 12px;
        }

        /* ========== 分页 ========== */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 32px;
        }

        .pagination .page-btn {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            border: 1px solid var(--border-orange);
            background: var(--bg-secondary);
            transition: all var(--transition);
        }

        .pagination .page-btn:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(255, 106, 0, 0.08);
        }

        .pagination .page-btn.active {
            background: var(--gradient-primary);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 16px rgba(255, 106, 0, 0.3);
        }

        .pagination .page-btn.ellipsis {
            border: none;
            background: transparent;
            color: var(--text-muted);
            cursor: default;
        }

        .pagination .page-btn.ellipsis:hover {
            border: none;
            background: transparent;
            color: var(--text-muted);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0A080F;
            border-top: 1px solid rgba(255, 106, 0, 0.2);
            padding: 60px 0 0;
            margin-top: var(--section-gap);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-top: 12px;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.2px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col ul li a::before {
            content: '›';
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
        }

        .footer-col ul li a:hover {
            color: var(--primary);
            transform: translateX(3px);
        }

        .compliance {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.9;
        }

        .compliance p {
            margin-bottom: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 18px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .footer-bottom-links a:hover {
            color: var(--primary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1279px) {
            .nav-links li a {
                padding: 8px 8px;
                font-size: 13px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
            .asymmetric-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-form {
                grid-template-columns: 1fr 1fr;
            }
            .cta-submit {
                grid-column: span 2;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .deep-content {
                padding: 28px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            :root {
                --section-gap: 40px;
                --nav-height: 60px;
            }
            .site-header {
                height: var(--nav-height);
            }
            .page-hero {
                padding: 110px 0 60px;
                min-height: auto;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero .hero-desc {
                font-size: 15px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stat-card {
                padding: 18px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .deep-content {
                padding: 24px 18px;
            }
            .deep-content h2 {
                font-size: 22px;
            }
            .deep-content h3 {
                font-size: 17px;
            }
            .cta-wrapper {
                padding: 28px 20px;
            }
            .cta-form {
                grid-template-columns: 1fr;
            }
            .cta-submit {
                grid-column: span 1;
                width: 100%;
            }
            .cta-trust {
                flex-direction: column;
                gap: 8px;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                text-align: left;
            }
            .footer-bottom-links {
                flex-wrap: wrap;
            }
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 13px;
            }
            .header-actions {
                gap: 6px;
            }
            .search-btn {
                width: 36px;
                height: 36px;
            }
            .hamburger {
                width: 36px;
                height: 36px;
            }
            .large-card .card-body {
                padding: 18px 18px 22px;
            }
            .large-card h3 {
                font-size: 18px;
            }
            .right-small-list {
                padding: 18px;
            }
            .pagination .page-btn {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
        }

        @media (max-width: 420px) {
            .page-hero h1 {
                font-size: 22px;
            }
            .deep-content {
                padding: 18px 14px;
            }
            .stat-card .stat-number {
                font-size: 30px;
            }
        }