/* roulang page: index */
:root {
            --primary: #0B1A2F;
            --primary-light: #111F2E;
            --primary-dark: #060f1a;
            --accent: #00E5FF;
            --accent-glow: #00BCD4;
            --warning: #FF5722;
            --warning-light: #ff7a50;
            --bg: #F5F7FA;
            --surface: #FFFFFF;
            --text-primary: #1A2B3C;
            --text-secondary: #5A6B7D;
            --text-muted: #9BA5B1;
            --border: #E8ECF1;
            --border-light: #f0f2f5;
            --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.14);
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-mono: "SF Mono", "DIN Alternate", "Roboto Mono", "Menlo", "Consolas", monospace;
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1280px;
            --header-height: 64px;
        }

        *,
        *::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);
            font-size: 15px;
            line-height: 1.6;
            color: var(--text-primary);
            background-color: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: all var(--transition);
        }
        input {
            font-family: inherit;
            outline: none;
            border: none;
        }
        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            box-shadow: var(--shadow-sm);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 16px;
        }
        .header-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 20px;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            font-weight: 900;
            font-family: var(--font-mono);
            flex-shrink: 0;
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.25);
        }
        .header-logo .logo-domain {
            font-size: 10px;
            color: var(--text-muted);
            font-weight: 400;
            letter-spacing: 0;
            display: block;
            line-height: 1;
        }
        .header-search-wrap {
            flex: 1;
            max-width: 440px;
            position: relative;
        }
        .header-search-wrap .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 16px;
            pointer-events: none;
            z-index: 2;
        }
        .header-search {
            width: 100%;
            height: 42px;
            border-radius: var(--radius-xl);
            background: var(--surface);
            border: 1.5px solid var(--border);
            padding: 0 16px 0 44px;
            font-size: 14px;
            color: var(--text-primary);
            transition: all var(--transition);
            box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.03);
        }
        .header-search:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.08), inset 0 1px 2px rgba(0, 0, 0, 0.03);
        }
        .header-search::placeholder {
            color: var(--text-muted);
            font-size: 13px;
        }
        .header-nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
        }
        .header-nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .header-nav-links a:hover,
        .header-nav-links a.active {
            color: var(--accent);
            background: rgba(0, 229, 255, 0.06);
        }
        .header-nav-links a.active {
            font-weight: 600;
            color: var(--primary);
            background: rgba(0, 229, 255, 0.10);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        @media (max-width: 992px) {
            .header-nav-links {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--surface);
                flex-direction: column;
                padding: 12px 16px;
                gap: 2px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .header-nav-links.open {
                display: flex;
            }
            .header-nav-links a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .mobile-menu-toggle {
                display: block;
                flex-shrink: 0;
            }
            .header-search-wrap {
                max-width: 280px;
            }
        }
        @media (max-width: 576px) {
            .site-header .container {
                flex-wrap: wrap;
                gap: 8px;
            }
            .header-search-wrap {
                order: 3;
                max-width: 100%;
                flex: 1 1 100%;
                margin-top: 0;
            }
            .header-logo {
                font-size: 17px;
            }
            .header-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 14px;
            }
            .header-search {
                height: 38px;
                font-size: 13px;
            }
        }

        /* Hero Data Dashboard */
        .hero-dashboard {
            position: relative;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 40px 0;
            min-height: 520px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-dashboard::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 20%, rgba(0, 229, 255, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(255, 87, 34, 0.05) 0%, transparent 60%);
            pointer-events: none;
        }
        .hero-dashboard .container {
            position: relative;
            z-index: 1;
            width: 100%;
        }
        .hero-dashboard .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 12px;
            background: rgba(0, 229, 255, 0.10);
            padding: 6px 14px;
            border-radius: var(--radius-full);
        }
        .hero-dashboard .hero-label .live-dot {
            width: 8px;
            height: 8px;
            background: var(--warning);
            border-radius: 50%;
            animation: livePulse 1.2s ease-in-out infinite;
            box-shadow: 0 0 8px var(--warning);
        }
        @keyframes livePulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.6);
            }
        }
        .hero-dashboard h1 {
            font-size: 30px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 6px;
            letter-spacing: 1px;
            line-height: 1.25;
        }
        .hero-dashboard .hero-subtitle {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 600px;
            line-height: 1.5;
        }
        .data-card-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 10px;
            margin-bottom: 16px;
        }
        @media (max-width: 1200px) {
            .data-card-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        @media (max-width: 768px) {
            .data-card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .hero-dashboard {
                padding: 28px 0;
                min-height: auto;
            }
            .hero-dashboard h1 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .data-card-grid {
                grid-template-columns: 1fr 1fr;
                gap: 6px;
            }
            .hero-dashboard h1 {
                font-size: 20px;
            }
        }
        .data-card-mini {
            background: rgba(255, 255, 255, 0.07);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-xs);
            padding: 12px 14px;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            display: block;
            color: #fff;
            min-width: 0;
        }
        .data-card-mini:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
        }
        .data-card-mini .mini-label {
            font-size: 10px;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            color: var(--text-muted);
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .data-card-mini .mini-value {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            line-height: 1.1;
            white-space: nowrap;
        }
        .data-card-mini .mini-trend {
            font-size: 11px;
            font-weight: 600;
            margin-top: 2px;
            display: inline-flex;
            align-items: center;
            gap: 3px;
            white-space: nowrap;
        }
        .data-card-mini .mini-trend.up {
            color: var(--accent);
        }
        .data-card-mini .mini-trend.down {
            color: var(--warning);
        }
        .data-card-mini .mini-trend.neutral {
            color: var(--text-muted);
        }
        .data-card-mini .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 10px;
            font-weight: 700;
            color: var(--warning);
            text-transform: uppercase;
            letter-spacing: 0.6px;
            animation: livePulse 1.2s ease-in-out infinite;
        }
        .data-card-mini .live-badge .dot {
            width: 6px;
            height: 6px;
            background: var(--warning);
            border-radius: 50%;
        }
        .hero-quick-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .hero-quick-actions .quick-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .quick-btn-primary {
            background: var(--accent);
            color: var(--primary);
            border: none;
        }
        .quick-btn-primary:hover {
            background: #00d4f0;
            box-shadow: 0 6px 20px rgba(0, 229, 255, 0.35);
            transform: translateY(-1px);
        }
        .quick-btn-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
        }
        .quick-btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.06);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
        }

        /* Section common */
        .section {
            padding: 56px 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 36px 0;
            }
        }
        .section-header {
            margin-bottom: 32px;
        }
        .section-header h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .section-header .section-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
            max-width: 600px;
        }

        /* Service Matrix */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        @media (max-width: 992px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
        }
        .service-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
            color: inherit;
            position: relative;
            overflow: hidden;
        }
        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--accent);
        }
        .service-card .svc-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(0, 229, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
            color: var(--accent);
            transition: all var(--transition);
            border: 1.5px solid transparent;
        }
        .service-card:hover .svc-icon {
            border-color: var(--accent);
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.2);
            background: rgba(0, 229, 255, 0.14);
        }
        .service-card .svc-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .service-card .svc-info p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .service-card .svc-tag {
            display: inline-block;
            font-size: 11px;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: rgba(0, 229, 255, 0.08);
            color: var(--accent);
            font-weight: 600;
            margin-top: 8px;
            letter-spacing: 0.4px;
        }

        /* Hot Ranking */
        .ranking-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        @media (max-width: 768px) {
            .ranking-list {
                grid-template-columns: 1fr;
            }
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--surface);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
            color: inherit;
        }
        .ranking-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .ranking-item .rank-num {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            width: 32px;
            text-align: center;
            flex-shrink: 0;
            color: var(--text-muted);
        }
        .ranking-item:nth-child(1) .rank-num {
            color: #FFD700;
        }
        .ranking-item:nth-child(2) .rank-num {
            color: #C0C0C0;
        }
        .ranking-item:nth-child(3) .rank-num {
            color: #CD7F32;
        }
        .ranking-item .rank-info {
            flex: 1;
            min-width: 0;
        }
        .ranking-item .rank-name {
            font-weight: 600;
            font-size: 15px;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .ranking-item .rank-detail {
            font-size: 12px;
            color: var(--text-secondary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .ranking-item .rank-change {
            font-family: var(--font-mono);
            font-size: 15px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .ranking-item .rank-change.up {
            color: var(--accent);
        }
        .ranking-item .rank-change.down {
            color: var(--warning);
        }
        .ranking-item .rank-change.neutral {
            color: var(--text-muted);
        }

        /* News List */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 1px;
        }
        .news-item {
            display: flex;
            gap: 16px;
            padding: 18px 20px;
            background: var(--surface);
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
            color: inherit;
            align-items: flex-start;
        }
        .news-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-md);
            background: #fafbfc;
        }
        .news-item .news-thumb {
            width: 100px;
            height: 68px;
            border-radius: var(--radius-xs);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg);
        }
        .news-item .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 4px;
        }
        .news-item .news-summary {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .news-item .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .news-item .news-badge {
            display: inline-flex;
            align-items: center;
            padding: 2px 8px;
            border-radius: var(--radius-xs);
            font-size: 10px;
            font-weight: 700;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .badge-new {
            background: var(--accent);
            color: var(--primary);
        }
        .badge-hot {
            background: var(--warning);
            color: #fff;
        }
        .badge-deep {
            background: var(--primary);
            color: #fff;
        }
        .news-item .read-more-link {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            white-space: nowrap;
            transition: all var(--transition);
        }
        .news-item .read-more-link:hover {
            color: var(--accent-glow);
            text-decoration: underline;
        }
        @media (max-width: 576px) {
            .news-item {
                flex-direction: column;
                gap: 10px;
            }
            .news-item .news-thumb {
                width: 100%;
                height: 140px;
                border-radius: var(--radius-sm);
            }
        }

        /* Topic Cards */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        @media (max-width: 992px) {
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .topic-grid {
                grid-template-columns: 1fr;
            }
        }
        .topic-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
            color: inherit;
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--accent);
        }
        .topic-card .topic-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            background: var(--bg);
        }
        .topic-card .topic-body {
            padding: 16px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-card .topic-tag {
            font-size: 11px;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            background: rgba(0, 229, 255, 0.08);
            color: var(--accent);
            font-weight: 600;
            display: inline-block;
            width: fit-content;
            margin-bottom: 8px;
            letter-spacing: 0.4px;
        }
        .topic-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* Stats Overview */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }
        .stat-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            border: 1px solid var(--border);
            text-align: center;
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .stat-card .stat-value {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 4px;
        }
        .stat-card .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 2px;
        }
        .stat-card .stat-trend {
            font-size: 11px;
            font-weight: 600;
            color: var(--accent);
        }

        /* User Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        @media (max-width: 992px) {
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .reviews-grid {
                grid-template-columns: 1fr;
            }
        }
        .review-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .review-card:hover {
            box-shadow: var(--shadow-md);
        }
        .review-card .review-stars {
            color: #FFB800;
            font-size: 14px;
            margin-bottom: 8px;
            letter-spacing: 2px;
        }
        .review-card .review-text {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 4;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .review-card .review-author .author-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: rgba(11, 26, 47, 0.06);
            color: var(--text-secondary);
            font-size: 11px;
            font-weight: 500;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item.active {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            background: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition);
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-item.active .faq-question {
            color: var(--accent);
            background: rgba(0, 229, 255, 0.03);
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            transition: transform var(--transition-slow);
            color: var(--text-muted);
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            background: rgba(0, 229, 255, 0.15);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-item.active .faq-answer-inner {
            padding: 0 20px 16px;
        }

        /* Eco Tags */
        .eco-tags-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }
        @media (max-width: 992px) {
            .eco-tags-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .eco-tags-grid {
                grid-template-columns: 1fr;
            }
        }
        .eco-tag-card {
            background: var(--surface);
            border-radius: var(--radius-sm);
            padding: 20px;
            border: 1px solid var(--border);
            text-align: center;
            transition: all var(--transition);
            cursor: pointer;
        }
        .eco-tag-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            background: #fafcfd;
        }
        .eco-tag-card .eco-icon {
            font-size: 28px;
            margin-bottom: 8px;
        }
        .eco-tag-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* Changelog */
        .changelog-timeline {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .changelog-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .changelog-item .cl-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
            width: 90px;
            text-align: right;
            padding-top: 2px;
        }
        .changelog-item .cl-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
            margin-top: 5px;
            box-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
        }
        .changelog-item .cl-content {
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.5;
            flex: 1;
        }
        .changelog-item .cl-content strong {
            color: var(--primary);
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 44px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
        }
        .cta-section h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }
        .cta-section .cta-form {
            display: flex;
            gap: 10px;
            max-width: 500px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-section .cta-input {
            flex: 1;
            min-width: 220px;
            height: 46px;
            border-radius: var(--radius-full);
            padding: 0 18px;
            font-size: 14px;
            border: 1.5px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            transition: all var(--transition);
        }
        .cta-section .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .cta-section .cta-input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.16);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.12);
        }
        .cta-section .cta-btn {
            height: 46px;
            padding: 0 28px;
            border-radius: var(--radius-full);
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .cta-section .cta-btn:hover {
            background: #00d4f0;
            box-shadow: 0 6px 22px rgba(0, 229, 255, 0.4);
            transform: translateY(-1px);
        }

        /* Sitemap */
        .sitemap-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
        }
        @media (max-width: 992px) {
            .sitemap-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 576px) {
            .sitemap-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        .sitemap-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 10px;
            letter-spacing: 0.4px;
        }
        .sitemap-col a {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            padding: 4px 0;
            transition: all var(--transition);
        }
        .sitemap-col a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 0 20px;
        }
        .site-footer .footer-top {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-bottom: 32px;
        }
        .site-footer .footer-brand {
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-brand .footer-domain {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.4);
            font-weight: 400;
            display: block;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.8;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            margin: 0 6px;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        .footer-bottom .footer-links-row {
            margin-bottom: 6px;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 4px 12px;
        }

        /* Utility */
        .text-accent {
            color: var(--accent);
        }
        .text-warning {
            color: var(--warning);
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: category2 */
:root {
            --color-night: #0B1A2F;
            --color-night-light: #111F2E;
            --color-cyber: #00E5FF;
            --color-cyber-dark: #00BCD4;
            --color-alert: #FF5722;
            --color-bg-cool: #F5F7FA;
            --color-text-main: #1A2B3C;
            --color-text-sub: #5A6B7D;
            --color-text-hint: #9BA5B1;
            --color-border-light: #E8ECF1;
            --color-white: #FFFFFF;
            --radius-card-sm: 4px;
            --radius-card: 12px;
            --radius-btn: 24px;
            --shadow-card-dense: 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-card-soft: 0 8px 16px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 12px 28px rgba(0, 0, 0, 0.10);
            --shadow-glow-cyber: 0 0 20px rgba(0, 229, 255, 0.18);
            --transition-fast: 0.2s ease;
        }

        *,
        *::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: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            line-height: 1.6;
            color: var(--color-text-main);
            background-color: var(--color-bg-cool);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
            transition: all var(--transition-fast);
        }

        input {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 12px 24px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .header-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 22px;
            font-weight: 700;
            color: var(--color-night);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .header-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-night) 0%, var(--color-night-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-cyber);
            font-weight: 900;
            font-size: 16px;
            font-family: "DIN Alternate", "Roboto Mono", "Menlo", monospace;
        }

        .header-search-wrap {
            flex: 1;
            max-width: 420px;
            position: relative;
        }

        .header-search-input {
            width: 100%;
            padding: 11px 44px 11px 18px;
            border-radius: 24px;
            border: 2px solid var(--color-border-light);
            background: var(--color-white);
            font-size: 14px;
            color: var(--color-text-main);
            box-shadow: var(--shadow-card-dense);
            transition: all var(--transition-fast);
            box-sizing: border-box;
        }

        .header-search-input:focus {
            border-color: var(--color-cyber);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.10), var(--shadow-card-dense);
            outline: none;
        }

        .header-search-input::placeholder {
            color: var(--color-text-hint);
        }

        .header-search-icon {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-text-hint);
            font-size: 17px;
            pointer-events: none;
        }

        .header-nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .header-nav-links a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-sub);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }

        .header-nav-links a:hover {
            color: var(--color-cyber-dark);
            background: rgba(0, 229, 255, 0.06);
        }

        .header-nav-links a.active {
            color: var(--color-cyber-dark);
            background: rgba(0, 229, 255, 0.10);
            font-weight: 600;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 26px;
            color: var(--color-text-main);
            padding: 6px;
            line-height: 1;
            cursor: pointer;
        }

        /* Hero Banner - Magazine Layout */
        .hero-magazine {
            padding: 32px 0 40px;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
        }

        .hero-magazine-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }

        .hero-magazine-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            min-height: 360px;
            background: var(--color-night-light);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-magazine-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
            transition: transform 0.5s ease;
        }

        .hero-magazine-image:hover img {
            transform: scale(1.04);
        }

        .hero-magazine-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--color-alert);
            color: #fff;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            z-index: 2;
            letter-spacing: 0.5px;
        }

        .hero-magazine-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 16px;
        }

        .hero-magazine-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-cyber-dark);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .hero-magazine-label::before {
            content: '';
            display: block;
            width: 28px;
            height: 2px;
            background: var(--color-cyber);
            border-radius: 2px;
        }

        .hero-magazine-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-night);
            letter-spacing: 0.3px;
        }

        .hero-magazine-excerpt {
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-text-sub);
        }

        .hero-magazine-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--color-text-hint);
        }

        .hero-magazine-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .hero-magazine-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .hero-magazine-tags .tag {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 14px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(0, 229, 255, 0.08);
            color: var(--color-cyber-dark);
            border: 1px solid rgba(0, 229, 255, 0.18);
        }

        .btn-cyber {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            background: var(--color-cyber);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.3px;
        }

        .btn-cyber:hover {
            background: #00d4f0;
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-1px);
        }

        .btn-cyber:active {
            transform: translateY(0);
            box-shadow: var(--shadow-card-soft);
        }

        .btn-cyber:focus-visible {
            outline: 3px solid rgba(0, 229, 255, 0.4);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            border: 2px solid var(--color-night);
            color: var(--color-night);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: var(--color-night);
            color: #fff;
            box-shadow: var(--shadow-card-soft);
            transform: translateY(-1px);
        }

        .btn-outline:focus-visible {
            outline: 3px solid rgba(11, 26, 47, 0.3);
            outline-offset: 2px;
        }

        /* Section styles */
        .section {
            padding: 48px 0;
        }

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

        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-night);
            letter-spacing: 0.3px;
            position: relative;
            padding-left: 16px;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 4px;
            border-radius: 2px;
            background: var(--color-cyber);
        }

        .section-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-cyber-dark);
            display: flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
        }

        .section-link:hover {
            color: var(--color-cyber);
            gap: 8px;
        }

        /* Topic cards grid - masonry-like two column */
        .topic-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .topic-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card-soft);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            border: 1px solid var(--color-border-light);
        }

        .topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(0, 229, 255, 0.25);
        }

        .topic-card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--color-night-light);
        }

        .topic-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .topic-card:hover .topic-card-image img {
            transform: scale(1.05);
        }

        .topic-card-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 700;
            color: #fff;
            z-index: 2;
            letter-spacing: 0.5px;
        }

        .badge-hot {
            background: var(--color-alert);
        }

        .badge-new {
            background: var(--color-cyber-dark);
        }

        .badge-deep {
            background: var(--color-night);
        }

        .topic-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .topic-card-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--color-night);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .topic-card:hover .topic-card-title {
            color: var(--color-cyber-dark);
        }

        .topic-card-excerpt {
            font-size: 14px;
            line-height: 1.65;
            color: var(--color-text-sub);
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .topic-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--color-text-hint);
            padding-top: 6px;
            border-top: 1px solid var(--color-border-light);
        }

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

        .topic-card-tags .mini-tag {
            display: inline-block;
            padding: 3px 9px;
            border-radius: 10px;
            font-size: 11px;
            font-weight: 500;
            background: #f0f4f8;
            color: var(--color-text-sub);
        }

        /* Stats highlight bar */
        .stats-bar {
            background: var(--color-night);
            padding: 32px 0;
        }

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

        .stats-bar-item {
            padding: 12px;
        }

        .stats-bar-value {
            font-family: "DIN Alternate", "Roboto Mono", "Menlo", monospace;
            font-size: 38px;
            font-weight: 700;
            color: var(--color-cyber);
            letter-spacing: 1px;
        }

        .stats-bar-label {
            font-size: 13px;
            color: #bcc8d6;
            margin-top: 4px;
            letter-spacing: 0.5px;
        }

        .stats-bar-trend {
            font-size: 12px;
            margin-top: 3px;
            font-weight: 500;
        }

        .trend-up {
            color: #4caf84;
        }

        .trend-down {
            color: var(--color-alert);
        }

        /* FAQ */
        .faq-section {
            background: var(--color-white);
            padding: 48px 0;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item.active {
            border-color: rgba(0, 229, 255, 0.35);
            box-shadow: 0 0 0 2px rgba(0, 229, 255, 0.06);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--color-night);
            background: #fafbfc;
            border: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition-fast);
            gap: 12px;
        }

        .faq-question:hover {
            background: #f0f7fa;
            color: var(--color-cyber-dark);
        }

        .faq-item.active .faq-question {
            background: #f0fafe;
            color: var(--color-cyber-dark);
        }

        .faq-arrow {
            flex-shrink: 0;
            font-size: 18px;
            transition: transform var(--transition-fast);
            color: var(--color-text-hint);
        }

        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-cyber-dark);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-sub);
            background: #fff;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 14px 20px 20px;
        }

        /* CTA */
        .cta-section {
            padding: 48px 0;
            background: linear-gradient(135deg, #0d1f35 0%, #0B1A2F 50%, #0f2338 100%);
        }

        .cta-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .cta-desc {
            font-size: 15px;
            color: #bcc8d6;
            margin-bottom: 24px;
            line-height: 1.6;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-input {
            flex: 1;
            min-width: 200px;
            padding: 13px 18px;
            border-radius: 24px;
            border: 2px solid rgba(255, 255, 255, 0.18);
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 14px;
            transition: all var(--transition-fast);
            box-sizing: border-box;
        }

        .cta-input::placeholder {
            color: #8899aa;
        }

        .cta-input:focus {
            border-color: var(--color-cyber);
            background: rgba(255, 255, 255, 0.10);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.12);
            outline: none;
        }

        /* Footer */
        .site-footer {
            background: var(--color-night);
            color: #bcc8d6;
            padding: 40px 0 20px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-bottom: 30px;
        }

        .footer-col h4 {
            color: var(--color-cyber);
            font-size: 15px;
            font-weight: 700;
            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: #8899aa;
            transition: all var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--color-cyber);
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding-top: 18px;
            text-align: center;
            font-size: 12px;
            color: #6b7d8e;
            display: flex;
            flex-direction: column;
            gap: 8px;
            align-items: center;
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .footer-bottom-links a {
            color: #6b7d8e;
            font-size: 12px;
            transition: all var(--transition-fast);
        }

        .footer-bottom-links a:hover {
            color: var(--color-cyber);
            text-decoration: underline;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-magazine-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .hero-magazine-image {
                min-height: 260px;
                aspect-ratio: 16 / 9;
            }
            .hero-magazine-title {
                font-size: 24px;
            }
            .topic-grid {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
            .stats-bar-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .header-nav-links a {
                padding: 7px 12px;
                font-size: 13px;
            }
            .header-search-wrap {
                max-width: 280px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 10px;
                padding: 10px 16px;
            }
            .header-logo {
                font-size: 18px;
            }
            .header-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }
            .header-search-wrap {
                order: 3;
                max-width: 100%;
                flex: 1 1 100%;
                margin-top: 2px;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 2px;
                background: #fff;
                border-radius: 8px;
                box-shadow: var(--shadow-card-soft);
                padding: 8px;
                order: 4;
            }
            .header-nav-links.open {
                display: flex;
            }
            .header-nav-links a {
                border-radius: 8px;
                padding: 10px 14px;
                width: 100%;
            }
            .hero-magazine {
                padding: 20px 0 28px;
            }
            .hero-magazine-title {
                font-size: 20px;
            }
            .hero-magazine-excerpt {
                font-size: 14px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .topic-card-title {
                font-size: 15px;
            }
            .stats-bar-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stats-bar-value {
                font-size: 28px;
            }
            .section {
                padding: 32px 0;
            }
            .section-title {
                font-size: 18px;
            }
            .cta-card {
                padding: 28px 18px;
            }
            .cta-title {
                font-size: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-magazine-image {
                min-height: 200px;
            }
            .hero-magazine-title {
                font-size: 18px;
            }
            .hero-magazine-meta {
                flex-wrap: wrap;
                gap: 8px;
            }
            .stats-bar-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stats-bar-value {
                font-size: 24px;
            }
            .stats-bar-label {
                font-size: 11px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-bottom-links {
                gap: 10px;
            }
            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-input {
                min-width: auto;
            }
            .topic-card-body {
                padding: 14px 16px 16px;
            }
            .topic-card-excerpt {
                font-size: 13px;
                -webkit-line-clamp: 2;
            }
            .btn-cyber,
            .btn-outline {
                padding: 10px 20px;
                font-size: 13px;
            }
            .faq-question {
                font-size: 13px;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 13px;
            }
        }

        @media (min-width: 769px) {
            .header-nav-links {
                display: flex !important;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0B1A2F;
            --color-primary-light: #132940;
            --color-primary-dark: #060F1C;
            --color-accent: #00E5FF;
            --color-accent-glow: rgba(0, 229, 255, 0.25);
            --color-accent-subtle: rgba(0, 229, 255, 0.08);
            --color-alert: #FF5722;
            --color-alert-glow: rgba(255, 87, 34, 0.3);
            --color-bg: #F5F7FA;
            --color-white: #FFFFFF;
            --color-text-primary: #1A2B3C;
            --color-text-secondary: #5A6B7D;
            --color-text-muted: #9BA5B1;
            --color-border: #E8ECF1;
            --color-border-light: #F0F3F6;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --radius-full: 24px;
            --shadow-card: 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 16px rgba(0, 0, 0, 0.08);
            --shadow-elevated: 0 8px 24px rgba(0, 0, 0, 0.10);
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.03);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-mono: "SF Mono", "Menlo", "Roboto Mono", "Consolas", monospace;
            --font-data: "DIN Alternate", "Roboto Mono", "Menlo", monospace;
            --transition-fast: 0.15s ease;
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1280px;
        }

        *,
        *::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);
            font-size: 15px;
            line-height: 1.6;
            color: var(--color-text-primary);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        input::placeholder {
            color: var(--color-text-muted);
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-elevated);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 20px;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 20px;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .header-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, #1a3a5c 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 16px;
            font-weight: 900;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .header-logo .logo-domain {
            font-size: 10px;
            color: var(--color-text-muted);
            font-weight: 400;
            letter-spacing: 0;
            display: block;
            line-height: 1;
            margin-top: 1px;
        }
        .header-search-wrap {
            flex: 1;
            max-width: 420px;
            position: relative;
            min-width: 180px;
        }
        .header-search-wrap input {
            width: 100%;
            height: 40px;
            border-radius: var(--radius-full);
            background: var(--color-bg);
            border: 1.5px solid var(--color-border);
            padding: 0 42px 0 18px;
            font-size: 14px;
            color: var(--color-text-primary);
            transition: all var(--transition-base);
        }
        .header-search-wrap input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px var(--color-accent-subtle);
            background: var(--color-white);
        }
        .header-search-wrap .search-icon {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-text-muted);
            font-size: 15px;
            pointer-events: none;
            transition: color var(--transition-fast);
        }
        .header-search-wrap input:focus~.search-icon {
            color: var(--color-accent);
        }
        .header-nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            flex-wrap: nowrap;
        }
        .header-nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }
        .header-nav-links a:hover {
            color: var(--color-accent);
            background: var(--color-accent-subtle);
        }
        .header-nav-links a.active {
            color: var(--color-accent);
            background: var(--color-accent-subtle);
            font-weight: 600;
        }
        .header-nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2.5px;
            border-radius: 2px;
            background: var(--color-accent);
        }
        .mobile-menu-toggle {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--color-text-primary);
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: var(--color-accent-subtle);
            border-color: var(--color-accent);
        }
        @media (max-width: 1024px) {
            .header-search-wrap {
                max-width: 280px;
            }
            .header-nav-links a {
                padding: 6px 10px;
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 54px;
                gap: 10px;
                flex-wrap: nowrap;
            }
            .header-search-wrap {
                flex: 1;
                max-width: none;
                min-width: 0;
                order: 3;
                width: 100%;
                flex-basis: 100%;
                display: none;
            }
            .header-search-wrap.mobile-visible {
                display: block;
            }
            .header-nav-links {
                display: none;
                position: absolute;
                top: 54px;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: 12px 16px;
                gap: 2px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-elevated);
                z-index: 999;
            }
            .header-nav-links.open {
                display: flex;
            }
            .header-nav-links a {
                width: 100%;
                padding: 11px 14px;
                border-radius: var(--radius-md);
                font-size: 14px;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .header-logo {
                font-size: 17px;
            }
            .header-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 13px;
            }
        }

        /* ========== HERO DATA DASHBOARD ========== */
        .hero-data-dashboard {
            background: linear-gradient(170deg, #0B1A2F 0%, #0F1F38 30%, #132940 60%, #0B1A2F 100%);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            padding: 36px 0 40px;
            overflow: hidden;
        }
        .hero-data-dashboard::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 20%, rgba(0, 229, 255, 0.07) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(255, 87, 34, 0.04) 0%, transparent 55%),
                url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='2' cy='2' r='0.8' fill='rgba(255,255,255,0.03)'/%3E%3C/svg%3E") repeat;
            pointer-events: none;
            z-index: 0;
        }
        .hero-dashboard-inner {
            position: relative;
            z-index: 2;
        }
        .hero-dashboard-inner .section-eyebrow {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--color-accent);
            font-weight: 600;
            margin-bottom: 6px;
        }
        .hero-dashboard-inner h1 {
            font-size: 28px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .hero-dashboard-inner .hero-subtitle {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 24px;
            max-width: 600px;
        }
        .dashboard-metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 10px;
            margin-bottom: 16px;
        }
        @media (max-width: 992px) {
            .dashboard-metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .dashboard-metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 6px;
            }
        }
        .metric-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            transition: all var(--transition-base);
            cursor: default;
            position: relative;
            overflow: hidden;
        }
        .metric-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(0, 229, 255, 0.35);
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.08);
            transform: translateY(-1px);
        }
        .metric-card .metric-label {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.55);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 4px;
        }
        .metric-card .metric-value {
            font-family: var(--font-data);
            font-size: 32px;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1;
            letter-spacing: -0.5px;
        }
        .metric-card .metric-trend {
            font-size: 11px;
            margin-top: 3px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }
        .metric-card .metric-trend.up {
            color: var(--color-accent);
        }
        .metric-card .metric-trend.down {
            color: var(--color-alert);
        }
        .metric-card .live-dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--color-alert);
            margin-right: 4px;
            animation: livePulse 1.6s ease-in-out infinite;
        }
        @keyframes livePulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 87, 34, 0.7);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(255, 87, 34, 0);
            }
        }
        .dashboard-quick-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .dashboard-quick-row .quick-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.14);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }
        .dashboard-quick-row .quick-chip:hover {
            background: rgba(0, 229, 255, 0.15);
            border-color: var(--color-accent);
            color: #FFFFFF;
        }
        .dashboard-quick-row .quick-chip.live-chip {
            background: rgba(255, 87, 34, 0.2);
            border-color: rgba(255, 87, 34, 0.45);
            color: #FFAB91;
        }

        /* ========== FILTER BAR ========== */
        .filter-bar {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
            position: sticky;
            top: 60px;
            z-index: 500;
            transition: box-shadow var(--transition-base);
        }
        .filter-bar.scrolled {
            box-shadow: var(--shadow-card);
        }
        @media (max-width: 768px) {
            .filter-bar {
                top: 54px;
                padding: 10px 0;
            }
        }
        .filter-bar-inner {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .filter-group-label {
            font-size: 12px;
            color: var(--color-text-muted);
            font-weight: 500;
            white-space: nowrap;
            letter-spacing: 0.3px;
        }
        .filter-pill {
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 500;
            background: var(--color-bg);
            color: var(--color-text-secondary);
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .filter-pill:hover {
            background: var(--color-accent-subtle);
            color: var(--color-accent);
            border-color: rgba(0, 229, 255, 0.3);
        }
        .filter-pill.active {
            background: var(--color-accent);
            color: #0B1A2F;
            font-weight: 600;
            border-color: var(--color-accent);
        }
        .filter-date-input {
            padding: 6px 12px;
            border-radius: var(--radius-full);
            font-size: 13px;
            background: var(--color-bg);
            color: var(--color-text-primary);
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: all var(--transition-fast);
            min-width: 130px;
        }
        .filter-date-input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px var(--color-accent-subtle);
        }

        /* ========== LIVE MATCHES SECTION ========== */
        .section-block {
            padding: 36px 0;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 24px 0;
            }
        }
        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
            flex-wrap: wrap;
            gap: 8px;
        }
        .section-header h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .section-header .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 11px;
            background: var(--color-alert);
            color: #fff;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-weight: 600;
            animation: livePulse 1.6s ease-in-out infinite;
        }
        .live-matches-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
        }
        @media (max-width: 992px) {
            .live-matches-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .live-matches-grid {
                grid-template-columns: 1fr;
            }
        }
        .match-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 16px 18px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .match-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(0, 229, 255, 0.3);
        }
        .match-card .match-status {
            position: absolute;
            top: 10px;
            right: 12px;
            font-size: 10px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            padding: 3px 8px;
            border-radius: var(--radius-sm);
        }
        .match-card .match-status.live {
            background: rgba(255, 87, 34, 0.12);
            color: var(--color-alert);
            animation: livePulse 1.6s ease-in-out infinite;
        }
        .match-card .match-status.upcoming {
            background: rgba(155, 165, 177, 0.12);
            color: var(--color-text-muted);
        }
        .match-card .match-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            margin-bottom: 8px;
            margin-top: 4px;
        }
        .match-card .team-info {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            min-width: 0;
        }
        .match-card .team-info.right {
            flex-direction: row-reverse;
            text-align: right;
        }
        .match-card .team-thumb {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            object-fit: cover;
            flex-shrink: 0;
            border: 2px solid var(--color-border);
        }
        .match-card .team-name {
            font-weight: 600;
            font-size: 14px;
            color: var(--color-text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .match-card .score-display {
            font-family: var(--font-data);
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 1px;
            flex-shrink: 0;
            text-align: center;
            min-width: 50px;
        }
        .match-card .match-meta {
            font-size: 11px;
            color: var(--color-text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ========== DATA COMPARISON TABLE ========== */
        .data-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            background: var(--color-white);
        }
        .data-table-wrap table {
            width: 100%;
            border-collapse: collapse;
            min-width: 800px;
            font-size: 13px;
        }
        .data-table-wrap thead th {
            background: var(--color-primary);
            color: #FFFFFF;
            font-weight: 600;
            padding: 12px 14px;
            text-align: left;
            white-space: nowrap;
            font-size: 12px;
            letter-spacing: 0.4px;
            text-transform: uppercase;
            border-bottom: 2px solid rgba(255, 255, 255, 0.1);
        }
        .data-table-wrap tbody td {
            padding: 11px 14px;
            border-bottom: 1px solid var(--color-border-light);
            color: var(--color-text-primary);
            white-space: nowrap;
            transition: background var(--transition-fast);
        }
        .data-table-wrap tbody tr:hover td {
            background: var(--color-accent-subtle);
        }
        .data-table-wrap tbody tr:last-child td {
            border-bottom: none;
        }
        .data-table-wrap .team-cell {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .data-table-wrap .team-cell img {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            object-fit: cover;
            flex-shrink: 0;
        }
        .data-table-wrap .team-cell span {
            font-weight: 500;
        }
        .data-table-wrap .data-num {
            font-family: var(--font-data);
            font-weight: 600;
            letter-spacing: -0.3px;
        }
        .data-table-wrap .trend-arrow {
            font-size: 10px;
            margin-left: 3px;
        }
        .data-table-wrap .trend-arrow.up {
            color: var(--color-accent);
        }
        .data-table-wrap .trend-arrow.down {
            color: var(--color-alert);
        }

        /* ========== RANKING HOTLIST ========== */
        .ranking-list {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 18px;
            border-bottom: 1px solid var(--color-border-light);
            transition: background var(--transition-fast);
            cursor: pointer;
        }
        .ranking-item:hover {
            background: var(--color-accent-subtle);
        }
        .ranking-item:last-child {
            border-bottom: none;
        }
        .ranking-pos {
            font-family: var(--font-data);
            font-size: 18px;
            font-weight: 700;
            width: 32px;
            text-align: center;
            color: var(--color-text-muted);
            flex-shrink: 0;
        }
        .ranking-pos.top3 {
            color: var(--color-alert);
        }
        .ranking-item .rank-thumb {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            object-fit: cover;
            flex-shrink: 0;
        }
        .ranking-item .rank-info {
            flex: 1;
            min-width: 0;
        }
        .ranking-item .rank-name {
            font-weight: 600;
            font-size: 14px;
            color: var(--color-text-primary);
        }
        .ranking-item .rank-sub {
            font-size: 11px;
            color: var(--color-text-muted);
        }
        .ranking-item .rank-change {
            font-family: var(--font-data);
            font-size: 13px;
            font-weight: 600;
            white-space: nowrap;
        }
        .ranking-item .rank-change.up {
            color: var(--color-accent);
        }
        .ranking-item .rank-change.down {
            color: var(--color-alert);
        }

        /* ========== PLAYER HIGHLIGHTS ========== */
        .player-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
        }
        @media (max-width: 992px) {
            .player-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .player-cards-grid {
                grid-template-columns: 1fr;
            }
        }
        .player-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 16px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .player-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .player-card .player-avatar {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 10px;
            border: 3px solid var(--color-border);
        }
        .player-card .player-name {
            font-weight: 700;
            font-size: 15px;
            color: var(--color-text-primary);
            margin-bottom: 2px;
        }
        .player-card .player-team {
            font-size: 11px;
            color: var(--color-text-muted);
            margin-bottom: 8px;
        }
        .player-card .player-kda {
            font-family: var(--font-data);
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.5px;
        }
        .player-card .player-stat-label {
            font-size: 10px;
            color: var(--color-text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        /* ========== FAQ ACCORDION ========== */
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 8px;
            background: var(--color-white);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(0, 229, 255, 0.25);
        }
        .faq-question {
            width: 100%;
            padding: 15px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 14px;
            color: var(--color-text-primary);
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: left;
            gap: 10px;
            background: transparent;
            border: none;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            color: var(--color-text-muted);
            transition: all var(--transition-smooth);
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--color-accent);
            color: #0B1A2F;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 18px 16px 18px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #0f2845 100%);
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            text-align: center;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 60% 30%, rgba(0, 229, 255, 0.1) 0%, transparent 50%);
        }
        .cta-section h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 11px 24px;
            background: var(--color-accent);
            color: #0B1A2F;
            font-weight: 700;
            font-size: 14px;
            border-radius: var(--radius-full);
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            letter-spacing: 0.3px;
            cursor: pointer;
            border: none;
        }
        .btn-primary:hover {
            background: #00F0FF;
            box-shadow: 0 8px 24px rgba(0, 229, 255, 0.35);
            transform: translateY(-2px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 13px;
            border-radius: var(--radius-full);
            transition: all var(--transition-base);
            cursor: pointer;
            background: transparent;
        }
        .btn-outline:hover {
            border-color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 36px 0 16px;
            font-size: 13px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-bottom: 24px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            padding: 3px 0;
            font-size: 13px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #FFFFFF;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 14px;
            text-align: center;
            font-size: 11px;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.8;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            margin: 0 6px;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: #FFFFFF;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* ========== UTILITY ========== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .divider {
            border: 0;
            height: 1px;
            background: var(--color-border);
            margin: 0;
        }

/* roulang page: category3 */
:root {
            --color-primary: #0B1A2F;
            --color-primary-light: #111F2E;
            --color-primary-dark: #060F1C;
            --color-accent: #00E5FF;
            --color-accent-glow: #00BCD4;
            --color-alert: #FF5722;
            --color-bg: #F5F7FA;
            --color-white: #FFFFFF;
            --color-text: #1A2B3C;
            --color-text-secondary: #5A6B7D;
            --color-text-muted: #9BA5B1;
            --color-border: #E8ECF1;
            --color-border-light: #F0F2F5;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --radius-2xl: 24px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.03);
            --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-xl: 0 12px 36px rgba(0, 0, 0, 0.10);
            --shadow-accent: 0 4px 20px rgba(0, 229, 255, 0.15);
            --transition-fast: 0.15s ease;
            --transition-base: 0.2s ease;
            --transition-smooth: 0.3s ease;
        }

        *,
        *::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: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            font-size: 15px;
            line-height: 1.6;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        .font-data {
            font-family: "DIN Alternate", "Roboto Mono", "Menlo", "Consolas", monospace;
            font-weight: 700;
            letter-spacing: -0.02em;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        input {
            font-family: inherit;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 1400px) {
            .container {
                max-width: 1320px;
            }
        }

        .header-main {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-base);
        }
        .header-main.scrolled {
            box-shadow: var(--shadow-md);
            background: rgba(255, 255, 255, 0.97);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            padding-bottom: 12px;
            gap: 20px;
            flex-wrap: wrap;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            transition: color var(--transition-base);
        }
        .header-logo:hover {
            color: var(--color-accent);
        }
        .header-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent-glow));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .header-logo-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            font-weight: 400;
            letter-spacing: 0.02em;
            display: block;
            line-height: 1;
            margin-top: 1px;
        }

        .header-search-wrap {
            flex: 1;
            min-width: 240px;
            max-width: 440px;
            position: relative;
        }
        .header-search-wrap input {
            width: 100%;
            padding: 10px 16px 10px 42px;
            border-radius: var(--radius-2xl);
            border: 2px solid var(--color-border);
            background: var(--color-white);
            font-size: 14px;
            color: var(--color-text);
            transition: all var(--transition-base);
            box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.03);
        }
        .header-search-wrap input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.08), inset 0 1px 3px rgba(0, 0, 0, 0.03);
            outline: none;
        }
        .header-search-wrap input::placeholder {
            color: var(--color-text-muted);
        }
        .header-search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-text-muted);
            font-size: 15px;
            pointer-events: none;
            transition: color var(--transition-base);
        }
        .header-search-wrap input:focus~.header-search-icon {
            color: var(--color-accent);
        }

        .header-nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }
        .header-nav-links a {
            display: inline-block;
            padding: 8px 15px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }
        .header-nav-links a:hover {
            color: var(--color-accent);
            background: rgba(0, 229, 255, 0.04);
        }
        .header-nav-links a.active {
            color: var(--color-accent);
            font-weight: 600;
            background: rgba(0, 229, 255, 0.07);
            box-shadow: inset 0 -2px 0 0 var(--color-accent);
        }

        .header-mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            background: var(--color-white);
            color: var(--color-text);
            font-size: 20px;
            cursor: pointer;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .header-mobile-toggle:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        @media (max-width: 992px) {
            .header-search-wrap {
                order: 3;
                max-width: 100%;
                min-width: 100%;
                flex-basis: 100%;
            }
            .header-nav-links {
                gap: 2px;
            }
            .header-nav-links a {
                padding: 6px 11px;
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                gap: 12px;
            }
            .header-nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 2px;
                padding-top: 8px;
                border-top: 1px solid var(--color-border);
                margin-top: 4px;
            }
            .header-nav-links.open {
                display: flex;
            }
            .header-nav-links a {
                width: 100%;
                text-align: left;
                padding: 10px 14px;
                border-radius: var(--radius-sm);
            }
            .header-mobile-toggle {
                display: flex;
            }
            .header-search-wrap {
                order: 0;
                flex-basis: auto;
                min-width: 0;
                flex: 1;
            }
        }
        @media (max-width: 520px) {
            .header-logo {
                font-size: 18px;
            }
            .header-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }
            .header-logo-sub {
                font-size: 10px;
            }
            .header-search-wrap input {
                padding: 9px 12px 9px 34px;
                font-size: 13px;
            }
        }

        .section {
            padding: 56px 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 36px 0;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 28px 0;
            }
        }

        .section-header {
            margin-bottom: 36px;
            text-align: center;
        }
        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .section-header .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .section-header h2 {
                font-size: 22px;
            }
            .section-header .section-subtitle {
                font-size: 14px;
            }
        }

        .hero-service {
            position: relative;
            background: linear-gradient(170deg, #060F1C 0%, #0B1A2F 30%, #111F2E 60%, #0B1A2F 100%);
            background-image:
                radial-gradient(ellipse at 20% 30%, rgba(0, 229, 255, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 75% 60%, rgba(0, 188, 212, 0.04) 0%, transparent 55%),
                url('/assets/images/backpic/back-1.webp');
            background-size: cover, cover, cover;
            background-position: center;
            background-blend-mode: normal, normal, overlay;
            color: #fff;
            padding: 72px 0 64px;
            overflow: hidden;
        }
        .hero-service::after {
            content: '';
            position: absolute;
            inset: 0;
            background: repeating-linear-gradient(0deg,
                    transparent,
                    transparent 2px,
                    rgba(0, 229, 255, 0.015) 2px,
                    rgba(0, 229, 255, 0.015) 3px);
            pointer-events: none;
            z-index: 0;
        }
        .hero-service .container {
            position: relative;
            z-index: 1;
        }
        .hero-service-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(0, 229, 255, 0.12);
            border: 1px solid rgba(0, 229, 255, 0.3);
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            animation: pulse-glow 2.5s ease-in-out infinite;
        }
        @keyframes pulse-glow {
            0%,
            100% {
                box-shadow: 0 0 8px rgba(0, 229, 255, 0.2);
            }
            50% {
                box-shadow: 0 0 20px rgba(0, 229, 255, 0.45);
            }
        }
        .hero-service h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
            color: #fff;
        }
        .hero-service h1 span {
            color: var(--color-accent);
        }
        .hero-service-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .hero-service-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 20px;
        }
        .hero-stat-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 18px 22px;
            min-width: 130px;
            text-align: center;
            backdrop-filter: blur(4px);
            transition: all var(--transition-base);
        }
        .hero-stat-card:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: rgba(0, 229, 255, 0.35);
            box-shadow: var(--shadow-accent);
        }
        .hero-stat-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-accent);
            font-family: "DIN Alternate", "Roboto Mono", "Menlo", monospace;
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .hero-stat-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 6px;
            letter-spacing: 0.03em;
        }
        @media (max-width: 768px) {
            .hero-service {
                padding: 48px 0 40px;
            }
            .hero-service h1 {
                font-size: 26px;
            }
            .hero-service-desc {
                font-size: 14px;
            }
            .hero-stat-value {
                font-size: 26px;
            }
            .hero-stat-card {
                padding: 14px 16px;
                min-width: 100px;
            }
            .hero-service-stats {
                gap: 12px;
            }
        }
        @media (max-width: 520px) {
            .hero-service h1 {
                font-size: 22px;
            }
            .hero-service-stats {
                gap: 8px;
            }
            .hero-stat-card {
                flex: 1 1 40%;
                min-width: 80px;
                padding: 12px 10px;
            }
            .hero-stat-value {
                font-size: 22px;
            }
        }

        .service-module {
            background: var(--color-white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            margin-bottom: 32px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .service-module:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--color-border);
        }
        .service-module-header {
            padding: 28px 32px;
            border-bottom: 1px solid var(--color-border-light);
            background: linear-gradient(135deg, #FAFBFC 0%, #F5F7FA 100%);
            display: flex;
            align-items: flex-start;
            gap: 16px;
            flex-wrap: wrap;
        }
        .service-module-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent-glow));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            flex-shrink: 0;
        }
        .service-module-title-area {
            flex: 1;
            min-width: 200px;
        }
        .service-module-title-area h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }
        .service-module-title-area .service-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.03em;
            background: rgba(0, 229, 255, 0.1);
            color: var(--color-accent-glow);
            margin-right: 6px;
        }
        .service-module-body {
            padding: 28px 32px;
        }
        .service-module-body .problem-intro {
            background: #FFF8F6;
            border-left: 4px solid var(--color-alert);
            padding: 16px 20px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: 24px;
            font-size: 14px;
            color: #5D3A2E;
            line-height: 1.7;
        }
        .service-module-body .problem-intro strong {
            color: var(--color-alert);
            font-weight: 700;
        }
        .service-module-body .solution-desc {
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text);
            margin-bottom: 20px;
        }
        .service-module-body .solution-desc p {
            margin-bottom: 10px;
        }
        .service-advantages {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 16px;
            margin-bottom: 24px;
        }
        .service-advantage-card {
            background: #F8FAFB;
            border-radius: var(--radius-md);
            padding: 18px;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .service-advantage-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-sm);
            background: #F0FAFC;
        }
        .service-advantage-card .adv-icon {
            font-size: 20px;
            color: var(--color-accent);
            margin-bottom: 8px;
        }
        .service-advantage-card h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .service-advantage-card p {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.5;
            margin: 0;
        }
        .service-case {
            background: #F5F7FA;
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            border: 1px dashed var(--color-border);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            flex-wrap: wrap;
        }
        .service-case-img {
            width: 140px;
            height: 100px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
        }
        .service-case-content h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }
        .service-case-content p {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        .service-case-content .case-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
            background: rgba(255, 87, 34, 0.08);
            color: var(--color-alert);
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .service-module-header {
                padding: 20px;
            }
            .service-module-body {
                padding: 20px;
            }
            .service-module-title-area h3 {
                font-size: 17px;
            }
            .service-advantages {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .service-case {
                flex-direction: column;
            }
            .service-case-img {
                width: 100%;
                height: 160px;
            }
        }
        @media (max-width: 520px) {
            .service-advantages {
                grid-template-columns: 1fr;
            }
            .service-module-icon {
                width: 42px;
                height: 42px;
                font-size: 18px;
            }
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        @media (max-width: 992px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }
        .metric-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            box-shadow: var(--shadow-xs);
        }
        .metric-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-accent);
            transform: translateY(-2px);
        }
        .metric-value {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-primary);
            font-family: "DIN Alternate", "Roboto Mono", "Menlo", monospace;
            letter-spacing: -0.02em;
            line-height: 1;
        }
        .metric-value.accent {
            color: var(--color-accent);
        }
        .metric-label {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-top: 8px;
            letter-spacing: 0.02em;
        }
        .metric-trend {
            font-size: 12px;
            font-weight: 600;
            margin-top: 4px;
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }
        .metric-trend.up {
            color: #00C853;
        }
        .metric-trend.stable {
            color: var(--color-accent);
        }
        @media (max-width: 768px) {
            .metric-value {
                font-size: 28px;
            }
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .faq-item.active {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-accent);
        }
        .faq-question {
            width: 100%;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: left;
            background: transparent;
            border: none;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-item.active .faq-question {
            color: var(--color-accent);
            background: rgba(0, 229, 255, 0.03);
        }
        .faq-arrow {
            font-size: 12px;
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
            color: var(--color-text-muted);
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }
        @media (max-width: 520px) {
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 13px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 14px;
            }
        }

        .cta-section {
            background: linear-gradient(160deg, #0B1A2F 0%, #111F2E 50%, #0B1A2F 100%);
            background-image:
                radial-gradient(ellipse at 60% 40%, rgba(0, 229, 255, 0.08) 0%, transparent 55%),
                url('/assets/images/backpic/back-3.webp');
            background-size: cover, cover;
            background-position: center;
            background-blend-mode: normal, overlay;
            color: #fff;
            text-align: center;
            padding: 60px 0;
            border-radius: var(--radius-xl);
            margin: 40px 20px;
            position: relative;
            overflow: hidden;
        }
        @media (min-width: 1200px) {
            .cta-section {
                margin: 40px auto;
                max-width: 1200px;
            }
        }
        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }
        .btn-primary {
            display: inline-block;
            padding: 14px 32px;
            border-radius: var(--radius-2xl);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.03em;
            background: var(--color-accent);
            color: #fff;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(0, 229, 255, 0.3);
            border: none;
        }
        .btn-primary:hover {
            background: #00F0FF;
            box-shadow: 0 6px 24px rgba(0, 229, 255, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            display: inline-block;
            padding: 13px 30px;
            border-radius: var(--radius-2xl);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.03em;
            border: 2px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            background: transparent;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            margin-left: 12px;
        }
        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(0, 229, 255, 0.06);
        }
        @media (max-width: 768px) {
            .cta-section {
                margin: 28px 12px;
                padding: 40px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .btn-outline {
                margin-left: 0;
                margin-top: 10px;
                display: block;
                width: fit-content;
                margin-left: auto;
                margin-right: auto;
            }
        }

        .footer-main {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 24px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.04em;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
            text-decoration: underline;
        }
        .footer-bottom {
            text-align: center;
            padding-bottom: 28px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.8;
        }
        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            margin-bottom: 10px;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 12px;
            transition: color var(--transition-fast);
        }
        .footer-bottom-links a:hover {
            color: var(--color-accent);
            text-decoration: underline;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .footer-bottom-links {
                gap: 10px;
            }
        }

        .bg-light {
            background: var(--color-bg);
        }
        .bg-white-sec {
            background: var(--color-white);
        }
        .text-accent {
            color: var(--color-accent);
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

        .live-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-alert);
            animation: live-blink 1.2s ease-in-out infinite;
            margin-right: 5px;
            vertical-align: middle;
        }
        @keyframes live-blink {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 6px var(--color-alert);
            }
            50% {
                opacity: 0.35;
                box-shadow: 0 0 2px var(--color-alert);
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #0B1A2F;
            --color-primary-light: #132840;
            --color-accent: #00E5FF;
            --color-accent-glow: rgba(0, 229, 255, 0.25);
            --color-accent-subtle: rgba(0, 229, 255, 0.08);
            --color-alert: #FF5722;
            --color-alert-soft: rgba(255, 87, 34, 0.12);
            --color-bg: #F5F7FA;
            --color-white: #FFFFFF;
            --color-text: #1A2B3C;
            --color-text-secondary: #5A6B7D;
            --color-text-muted: #9BA5B1;
            --color-border: #E2E7ED;
            --color-border-light: #EEF1F5;
            --color-stars: #FF9800;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --radius-full: 24px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.09);
            --shadow-xl: 0 14px 36px rgba(0, 0, 0, 0.11);
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-mono: "DIN Alternate", "Roboto Mono", "Menlo", monospace;
        }

        *,
        *::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);
            font-size: 15px;
            line-height: 1.6;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (min-width: 1400px) {
            .container {
                max-width: 1320px;
            }
        }

        /* Header */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-xs);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 0;
            height: 64px;
            gap: 20px;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 22px;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-primary) 0%, #1a3a5c 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 18px;
            flex-shrink: 0;
        }

        .header-logo .logo-domain {
            font-size: 10px;
            color: var(--color-text-muted);
            font-weight: 400;
            letter-spacing: 0;
            display: block;
            line-height: 1;
        }

        .header-search-wrap {
            flex: 1;
            max-width: 420px;
            position: relative;
        }

        .header-search {
            width: 100%;
            padding: 10px 16px 10px 42px;
            border: 2px solid var(--color-border);
            border-radius: var(--radius-full);
            font-size: 14px;
            color: var(--color-text);
            background: var(--color-bg);
            transition: all var(--transition-fast);
            outline: none;
        }

        .header-search:focus {
            border-color: var(--color-accent);
            background: var(--color-white);
            box-shadow: 0 0 0 4px var(--color-accent-subtle);
        }

        .header-search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-text-muted);
            font-size: 15px;
            pointer-events: none;
            transition: color var(--transition-fast);
        }

        .header-search:focus~.header-search-icon {
            color: var(--color-accent);
        }

        .header-nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            flex-wrap: nowrap;
        }

        .header-nav-links a {
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .header-nav-links a:hover {
            color: var(--color-primary);
            background: var(--color-accent-subtle);
        }

        .header-nav-links a.active {
            color: var(--color-accent);
            background: var(--color-accent-subtle);
            font-weight: 600;
        }

        .header-nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .mobile-menu-toggle {
            display: none;
            font-size: 22px;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
        }

        /* Hero */
        .page-hero {
            background: linear-gradient(170deg, var(--color-primary) 0%, #0f1f38 40%, #132840 100%);
            position: relative;
            overflow: hidden;
            padding: 64px 0 56px;
            color: #ffffff;
            min-height: 360px;
            display: flex;
            align-items: center;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, rgba(11, 26, 47, 0.6), transparent);
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent-subtle);
            border: 1px solid rgba(0, 229, 255, 0.3);
            color: var(--color-accent);
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }

        .hero-badge .badge-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--color-accent);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 6px var(--color-accent);
            }
            50% {
                opacity: 0.35;
                box-shadow: 0 0 14px var(--color-accent);
            }
        }

        .hero-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .hero-title .accent {
            color: var(--color-accent);
        }

        .hero-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .hero-stats-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            text-align: left;
            min-width: 80px;
        }

        .hero-stat-num {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
            letter-spacing: -0.5px;
        }

        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* Section */
        .section {
            padding: 56px 0;
        }

        .section-sm {
            padding: 40px 0;
        }

        .section-lg {
            padding: 72px 0;
        }

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

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .section-header .section-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 550px;
            margin: 0 auto;
            line-height: 1.6;
        }

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

        .section-header-left h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }

        /* Filter Tags */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 36px;
            justify-content: center;
        }

        .filter-tag {
            padding: 9px 18px;
            border-radius: var(--radius-full);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            border: 2px solid var(--color-border);
            background: var(--color-white);
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            user-select: none;
        }

        .filter-tag:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background: var(--color-accent-subtle);
        }

        .filter-tag.active {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
            font-weight: 600;
            box-shadow: 0 4px 12px var(--color-accent-glow);
        }

        /* Review Cards Grid */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        @media (max-width: 1024px) {
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 640px) {
            .reviews-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        .review-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
            overflow: hidden;
        }

        .review-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }

        .review-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent), var(--color-primary-light));
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .review-card:hover::before {
            opacity: 1;
        }

        .review-card-top {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 17px;
            flex-shrink: 0;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #1e3d5c 100%);
        }

        .review-user-info {
            flex: 1;
            min-width: 0;
        }

        .review-user-name {
            font-weight: 600;
            font-size: 15px;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .review-user-role {
            font-size: 12px;
            color: var(--color-text-muted);
            line-height: 1.3;
        }

        .review-stars {
            display: flex;
            gap: 2px;
            color: var(--color-stars);
            font-size: 14px;
            flex-shrink: 0;
        }

        .review-stars .star-empty {
            color: #d0d5db;
        }

        .review-body {
            font-size: 14.5px;
            line-height: 1.7;
            color: var(--color-text);
            flex: 1;
        }

        .review-body .highlight {
            color: var(--color-accent);
            font-weight: 500;
            background: var(--color-accent-subtle);
            padding: 1px 5px;
            border-radius: 3px;
        }

        .review-scene-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 5px 10px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 500;
            background: #f0f4f8;
            color: var(--color-text-secondary);
            align-self: flex-start;
            border: 1px solid var(--color-border-light);
        }

        .review-scene-tag i {
            font-size: 10px;
            color: var(--color-accent);
        }

        .review-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 12px;
            color: var(--color-text-muted);
            padding-top: 8px;
            border-top: 1px solid var(--color-border-light);
        }

        .review-reply-btn {
            font-size: 12px;
            color: var(--color-accent);
            cursor: pointer;
            font-weight: 500;
            transition: all var(--transition-fast);
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
        }

        .review-reply-btn:hover {
            background: var(--color-accent-subtle);
            border-color: var(--color-accent);
        }

        .review-reply-placeholder {
            display: none;
            background: #f8fafb;
            border-radius: var(--radius-md);
            padding: 14px;
            margin-top: 4px;
            font-size: 13px;
            color: var(--color-text-secondary);
            border-left: 3px solid var(--color-accent);
            line-height: 1.5;
        }

        .review-reply-placeholder.visible {
            display: block;
        }

        .review-reply-placeholder .reply-author {
            font-weight: 600;
            color: var(--color-primary);
            font-size: 12px;
        }

        /* Featured Story */
        .featured-stories {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        @media (max-width: 768px) {
            .featured-stories {
                grid-template-columns: 1fr;
            }
        }

        .story-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .story-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .story-card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .story-card-img .story-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 26, 47, 0.7), transparent);
            display: flex;
            align-items: flex-end;
            padding: 16px;
        }

        .story-card-img .story-badge {
            background: var(--color-accent);
            color: #fff;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 600;
        }

        .story-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .story-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.35;
        }

        .story-card-body p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .story-card-body .story-meta {
            font-size: 12px;
            color: var(--color-text-muted);
            display: flex;
            gap: 14px;
            align-items: center;
        }

        /* CTA */
        .cta-section {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: var(--color-accent-glow);
            opacity: 0.15;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-fast);
            cursor: pointer;
            letter-spacing: 0.3px;
            position: relative;
            z-index: 1;
        }

        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 16px var(--color-accent-glow);
        }

        .btn-primary:hover {
            background: #00d4f0;
            box-shadow: 0 8px 24px rgba(0, 229, 255, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline {
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            background: transparent;
        }

        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: var(--radius-md);
        }

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

        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item.active {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px var(--color-accent-subtle);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 15px;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: all var(--transition-fast);
            background: none;
            border: none;
            line-height: 1.4;
        }

        .faq-question:hover {
            color: var(--color-accent);
            background: var(--color-accent-subtle);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-accent-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--color-accent);
            transition: all var(--transition-normal);
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
            background: var(--color-accent);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            background: #fafcfd;
        }

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

        /* Stats row */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: 40px;
        }
        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
        }
        @media (max-width: 480px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
        }

        .stat-card-mini {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 20px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-fast);
        }

        .stat-card-mini:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .stat-card-mini .stat-num {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: -1px;
            line-height: 1;
        }

        .stat-card-mini .stat-label {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-top: 6px;
        }

        .stat-card-mini .stat-trend {
            font-size: 11px;
            color: var(--color-accent);
            font-weight: 500;
            margin-top: 4px;
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            margin-top: 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-accent);
            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: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.8;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
            text-decoration: underline;
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            margin-bottom: 10px;
        }

        /* Mobile nav */
        @media (max-width: 920px) {
            .header-nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: 12px 20px;
                gap: 2px;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                z-index: 99;
            }
            .header-nav-links.open {
                display: flex;
            }
            .header-nav-links a {
                padding: 12px 16px;
                border-radius: var(--radius-md);
                font-size: 15px;
                width: 100%;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-search-wrap {
                max-width: 200px;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-stats-row {
                gap: 18px;
            }
            .hero-stat-num {
                font-size: 28px;
            }
        }

        @media (max-width: 520px) {
            .header-search-wrap {
                max-width: 140px;
            }
            .header-search {
                font-size: 13px;
                padding: 8px 12px 8px 34px;
            }
            .hero-title {
                font-size: 22px;
            }
            .hero-desc {
                font-size: 14px;
            }
            .filter-tag {
                padding: 7px 13px;
                font-size: 12px;
            }
            .review-card {
                padding: 16px;
            }
            .section {
                padding: 36px 0;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 22px;
            }
        }