/* roulang page: index */
:root {
            --primary: #1a2744;
            --primary-light: #243356;
            --primary-lighter: #2d4268;
            --accent: #c8963e;
            --accent-light: #d4a853;
            --accent-dark: #b5832d;
            --accent-glow: #e8c97a;
            --red-accent: #c0392b;
            --red-soft: #e74c3c;
            --bg: #f5f3ef;
            --bg-warm: #faf8f4;
            --bg-white: #ffffff;
            --bg-dark: #0f1923;
            --bg-card: #ffffff;
            --text: #1c1c1c;
            --text-secondary: #4a4a4a;
            --text-light: #6b7280;
            --text-lighter: #9ca3af;
            --text-white: #f0ece6;
            --text-white-bright: #ffffff;
            --border: #e5e0d8;
            --border-light: #f0ebe2;
            --border-medium: #d9d2c7;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.07), 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.09), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.16), 0 8px 20px rgba(0, 0, 0, 0.06);
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-mono: 'SF Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;
            --max-width: 1200px;
            --max-width-narrow: 860px;
            --nav-height: 68px;
            --nav-height-mobile: 60px;
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: var(--max-width-narrow);
            margin: 0 auto;
            padding: 0 24px;
        }

        .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;
        }

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100% - 32px);
            transition: all var(--transition);
        }

        .nav-capsule {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: var(--radius-full);
            padding: 6px 10px 6px 20px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.10), 0 1px 3px rgba(0, 0, 0, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.6);
            transition: all var(--transition);
        }

        .nav-capsule:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.14), 0 2px 6px rgba(0, 0, 0, 0.07);
        }

        .nav-logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            padding-right: 6px;
            display: flex;
            align-items: center;
            gap: 7px;
            transition: color var(--transition-fast);
        }

        .nav-logo:hover {
            color: var(--accent-dark);
        }

        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 0.85rem;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(26, 39, 68, 0.05);
        }

        .nav-link.active {
            color: var(--accent-dark);
            background: rgba(200, 150, 62, 0.10);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--accent);
            color: #fff;
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: 0 2px 10px rgba(200, 150, 62, 0.3);
        }

        .nav-cta-btn:hover {
            background: var(--accent-dark);
            box-shadow: 0 4px 18px rgba(200, 150, 62, 0.45);
            transform: translateY(-1px);
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            background: var(--primary-light);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition);
        }

        .mobile-nav-overlay.open {
            opacity: 1;
        }

        .mobile-nav-drawer {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: #fff;
            border-radius: 24px 24px 0 0;
            z-index: 1001;
            padding: 28px 24px 36px;
            box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.15);
            transform: translateY(100%);
            transition: transform var(--transition-slow);
        }

        .mobile-nav-drawer.open {
            transform: translateY(0);
        }

        /* ===== HERO ===== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 24px 80px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 25, 35, 0.88) 0%, rgba(26, 39, 68, 0.82) 40%, rgba(15, 25, 35, 0.9) 100%);
            z-index: 1;
        }

        .hero-particles {
            position: absolute;
            inset: 0;
            z-index: 2;
            pointer-events: none;
            background: radial-gradient(ellipse at 30% 20%, rgba(200, 150, 62, 0.12) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 60%, rgba(200, 150, 62, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(200, 150, 62, 0.06) 0%, transparent 40%);
        }

        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 750px;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: rgba(200, 150, 62, 0.18);
            color: var(--accent-glow);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            border: 1px solid rgba(200, 150, 62, 0.3);
        }

        .hero-title {
            font-size: clamp(2.4rem, 5vw, 3.6rem);
            font-weight: 800;
            color: var(--text-white-bright);
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 0.01em;
        }

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

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(240, 236, 230, 0.8);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            letter-spacing: 0.01em;
            cursor: pointer;
            text-align: center;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 18px rgba(200, 150, 62, 0.35);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.5);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-white-bright);
            border: 2px solid rgba(255, 255, 255, 0.35);
        }

        .btn-outline:hover {
            border-color: rgba(255, 255, 255, 0.7);
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 0.9rem;
            border-radius: var(--radius-full);
        }

        .btn-accent-sm {
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(200, 150, 62, 0.25);
        }

        .btn-accent-sm:hover {
            background: var(--accent-dark);
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.4);
            transform: translateY(-1px);
        }

        .hero-scroll-indicator {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.8rem;
            letter-spacing: 0.04em;
            animation: bounceDown 2s infinite;
        }

        @keyframes bounceDown {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(10px);
            }
        }

        .hero-scroll-line {
            width: 1px;
            height: 32px;
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, transparent 100%);
            border-radius: 1px;
        }

        /* ===== SECTION BASE ===== */
        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-dark);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .section-alt {
            background: var(--bg-warm);
        }

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }

        .section-dark .section-title {
            color: var(--text-white-bright);
        }

        .section-dark .section-desc {
            color: rgba(240, 236, 230, 0.7);
        }

        .section-dark .section-label {
            color: var(--accent-glow);
        }

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

        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent) 0%, var(--accent-light) 100%);
            border-radius: 0 0 4px 4px;
            opacity: 0;
            transition: opacity var(--transition);
        }

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

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-number .plus {
            color: var(--accent);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }

        /* ===== CATEGORY CARD ===== */
        .category-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            max-width: 700px;
            margin: 0 auto;
        }

        .category-card {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
        }

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

        .category-card-img {
            width: 90px;
            height: 90px;
            border-radius: var(--radius);
            object-fit: cover;
            flex-shrink: 0;
            box-shadow: var(--shadow-sm);
        }

        .category-card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .category-card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        .category-card-arrow {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            margin-left: auto;
            transition: all var(--transition);
            font-size: 1.1rem;
        }

        .category-card:hover .category-card-arrow {
            background: var(--accent);
            color: #fff;
        }

        /* ===== NEWS LIST ===== */
        .news-list {
            display: grid;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 20px 24px;
            box-shadow: var(--shadow-xs);
            border: 1px solid transparent;
            transition: all var(--transition);
            cursor: pointer;
        }

        .news-item:hover {
            border-color: var(--border-medium);
            box-shadow: var(--shadow);
            transform: translateX(3px);
        }

        .news-thumb {
            width: 70px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-body .news-category {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(200, 150, 62, 0.1);
            padding: 3px 10px;
            border-radius: var(--radius-full);
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .news-body h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .news-body p {
            font-size: 0.85rem;
            color: var(--text-light);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .news-meta {
            font-size: 0.8rem;
            color: var(--text-lighter);
            flex-shrink: 0;
            text-align: right;
        }

        .news-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-light);
            font-size: 0.95rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border-medium);
        }

        /* ===== PROCESS STEPS ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            position: relative;
        }

        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }

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

        .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.3);
        }

        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== RANKING TABLE ===== */
        .ranking-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
        }

        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .ranking-table th {
            background: var(--primary);
            color: #fff;
            padding: 14px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            text-align: left;
            letter-spacing: 0.02em;
        }

        .ranking-table td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.95rem;
            color: var(--text);
        }

        .ranking-table tbody tr {
            transition: background var(--transition-fast);
        }

        .ranking-table tbody tr:hover {
            background: rgba(200, 150, 62, 0.04);
        }

        .ranking-table .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            font-weight: 700;
            font-size: 0.85rem;
        }

        .rank-badge.top1 {
            background: #f6c343;
            color: #7a5e00;
        }
        .rank-badge.top2 {
            background: #c0c0c0;
            color: #444;
        }
        .rank-badge.top3 {
            background: #cd7f32;
            color: #fff;
        }
        .rank-badge.normal {
            background: #f0f0f0;
            color: #666;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 750px;
            margin: 0 auto;
            display: grid;
            gap: 12px;
        }

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

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color var(--transition-fast);
            user-select: none;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--accent);
            transition: all var(--transition);
        }

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

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: var(--primary);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(200, 150, 62, 0.2) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(200, 150, 62, 0.1) 0%, transparent 50%);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-content p {
            font-size: 1rem;
            color: rgba(240, 236, 230, 0.75);
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-content .btn {
            font-size: 1.05rem;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(240, 236, 230, 0.7);
            padding: 48px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(240, 236, 230, 0.6);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            display: grid;
            gap: 8px;
        }

        .footer-col a {
            font-size: 0.9rem;
            color: rgba(240, 236, 230, 0.6);
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-glow);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(240, 236, 230, 0.45);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-title {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                top: 10px;
            }
            .nav-capsule {
                padding: 5px 8px 5px 16px;
                gap: 2px;
            }
            .nav-links {
                gap: 0;
            }
            .nav-link {
                padding: 8px 12px;
                font-size: 0.85rem;
            }
            .nav-cta-btn {
                display: none;
            }
            .nav-logo {
                font-size: 1.05rem;
            }
            .nav-logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }
            .hero-section {
                min-height: 90vh;
                padding: 100px 20px 60px;
                background-attachment: scroll;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .btn {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            .section {
                padding: 50px 0;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .category-card {
                flex-direction: column;
                text-align: center;
                padding: 24px 20px;
            }
            .category-card-img {
                width: 70px;
                height: 70px;
            }
            .category-card-arrow {
                margin-left: 0;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px;
            }
            .news-thumb {
                width: 100%;
                height: 140px;
                border-radius: var(--radius-sm);
            }
            .news-meta {
                text-align: left;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .cta-section {
                padding: 40px 24px;
                border-radius: var(--radius-lg);
            }
            .ranking-table-wrap {
                border-radius: var(--radius);
            }
            .hero-scroll-indicator {
                bottom: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .nav-capsule {
                padding: 4px 6px 4px 12px;
                border-radius: var(--radius-xl);
            }
            .nav-link {
                padding: 7px 10px;
                font-size: 0.8rem;
            }
            .nav-logo {
                font-size: 0.95rem;
            }
            .nav-logo-icon {
                width: 24px;
                height: 24px;
                font-size: 0.7rem;
            }
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-subtitle {
                font-size: 0.85rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .stat-label {
                font-size: 0.78rem;
            }
            .btn {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 0.85rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a1a2e;
            --primary-light: #2d2d50;
            --primary-lighter: #3d3d64;
            --accent: #c9a96e;
            --accent-light: #e0d0a8;
            --accent-dark: #b08950;
            --accent-glow: #f0e6d0;
            --bg: #fafaf8;
            --bg-warm: #f5f3ee;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-secondary: #3d3d50;
            --text-muted: #7a7d8a;
            --text-light: #9ca0ae;
            --border: #e5e7eb;
            --border-light: #f0f1f3;
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --shadow-xs: 0 1px 2px rgba(26,26,46,0.04);
            --shadow-sm: 0 1px 3px rgba(26,26,46,0.05), 0 1px 2px rgba(26,26,46,0.04);
            --shadow: 0 2px 8px rgba(26,26,46,0.06), 0 1px 3px rgba(26,26,46,0.04);
            --shadow-md: 0 4px 16px rgba(26,26,46,0.08), 0 2px 6px rgba(26,26,46,0.04);
            --shadow-lg: 0 12px 36px rgba(26,26,46,0.12), 0 4px 12px rgba(26,26,46,0.06);
            --shadow-xl: 0 20px 48px rgba(26,26,46,0.16), 0 8px 20px rgba(26,26,46,0.08);
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'SF Mono', 'JetBrains Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1200px;
            --max-width-narrow: 760px;
            --header-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

        ::selection {
            background-color: var(--accent);
            color: #fff;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            width: 100%;
            max-width: var(--max-width-narrow);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100% - 32px);
        }

        .nav-capsule {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 12px;
            background: rgba(255,255,255,0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-lg), 0 0 0 1px rgba(26,26,46,0.06);
            white-space: nowrap;
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .nav-capsule:hover {
            box-shadow: var(--shadow-xl), 0 0 0 1px rgba(26,26,46,0.08);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--primary);
            padding: 8px 14px 8px 8px;
            border-radius: var(--radius-full);
            transition: background var(--transition-fast), color var(--transition-fast);
            letter-spacing: -0.01em;
            flex-shrink: 0;
        }

        .nav-logo:hover {
            background: rgba(26,26,46,0.04);
            color: var(--primary);
        }

        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            font-size: 1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .nav-link:hover {
            background: rgba(26,26,46,0.05);
            color: var(--primary);
        }

        .nav-link.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .nav-link.active:hover {
            background: var(--primary-light);
            color: #fff;
        }

        .nav-cta-btn {
            padding: 10px 20px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--accent);
            color: #fff;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
            box-shadow: 0 2px 8px rgba(201,169,110,0.35);
            margin-left: 4px;
        }

        .nav-cta-btn:hover {
            background: var(--accent-dark);
            box-shadow: 0 4px 16px rgba(201,169,110,0.5);
            transform: translateY(-1px);
            color: #fff;
        }

        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: 0 1px 4px rgba(201,169,110,0.3);
        }

        /* Mobile menu toggle */
        .nav-menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            color: var(--primary);
            transition: background var(--transition-fast);
        }

        .nav-menu-toggle:hover {
            background: rgba(26,26,46,0.05);
        }

        .nav-menu-toggle svg {
            width: 24px;
            height: 24px;
        }

        /* Article Banner */
        .article-banner {
            position: relative;
            padding: 140px 0 80px;
            background: linear-gradient(160deg, #1a1a2e 0%, #252545 30%, #1f1f3a 60%, #1a1a2e 100%);
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: flex-end;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.25;
            mix-blend-mode: soft-light;
            z-index: 0;
        }

        .article-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 180px;
            background: linear-gradient(to top, rgba(26,26,46,0.9) 0%, transparent 100%);
            z-index: 1;
        }

        .article-banner .banner-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .article-banner .banner-category {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            background: rgba(201,169,110,0.2);
            border: 1px solid rgba(201,169,110,0.4);
            border-radius: var(--radius-full);
            color: var(--accent-light);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
            transition: all var(--transition-fast);
            text-transform: uppercase;
        }

        .article-banner .banner-category:hover {
            background: rgba(201,169,110,0.3);
            border-color: rgba(201,169,110,0.6);
            color: #fff;
        }

        .article-banner .banner-title {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            letter-spacing: -0.02em;
            max-width: 800px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.3);
        }

        .article-banner .banner-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            color: rgba(255,255,255,0.75);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }

        .article-banner .banner-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-banner .banner-meta .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: rgba(255,255,255,0.4);
        }

        .banner-not-found {
            padding: 160px 0 100px;
            background: linear-gradient(160deg, #1a1a2e 0%, #252545 40%, #1f1f3a 100%);
            position: relative;
            text-align: center;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .banner-not-found::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            mix-blend-mode: soft-light;
        }

        .banner-not-found .not-found-content {
            position: relative;
            z-index: 2;
        }

        .banner-not-found .not-found-icon {
            font-size: 4rem;
            margin-bottom: 16px;
            display: block;
        }

        .banner-not-found h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .banner-not-found p {
            color: rgba(255,255,255,0.7);
            font-size: 1.1rem;
            margin-bottom: 28px;
        }

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(201,169,110,0.4);
        }

        .btn-back-home:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201,169,110,0.55);
            color: #fff;
        }

        .btn-back-home:active {
            transform: translateY(0);
        }

        /* Article Body */
        .article-body-section {
            padding: 60px 0 40px;
            background: var(--bg);
        }

        .article-body-wrapper {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 48px 56px;
            position: relative;
            margin-top: -60px;
            z-index: 3;
            border: 1px solid var(--border-light);
        }

        .article-content {
            font-size: 1.08rem;
            line-height: 1.85;
            color: var(--text);
        }

        .article-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin: 36px 0 16px;
            letter-spacing: -0.01em;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-glow);
        }

        .article-content h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary);
            margin: 28px 0 12px;
        }

        .article-content p {
            margin-bottom: 16px;
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0 20px 24px;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 24px;
            margin: 24px 0;
            background: var(--bg-warm);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-content img {
            border-radius: var(--radius);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }

        .article-content a {
            color: var(--accent-dark);
            border-bottom: 1px solid transparent;
            transition: all var(--transition-fast);
        }

        .article-content a:hover {
            border-bottom-color: var(--accent);
            color: var(--accent-dark);
        }

        .article-content strong {
            font-weight: 700;
            color: var(--primary);
        }

        .article-content code {
            background: var(--bg-warm);
            padding: 2px 8px;
            border-radius: var(--radius-xs);
            font-family: var(--font-mono);
            font-size: 0.9em;
            color: var(--primary-light);
        }

        .article-content pre {
            background: var(--primary);
            color: #e0d0a8;
            padding: 20px 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 20px 0;
            font-family: var(--font-mono);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .article-content pre code {
            background: none;
            padding: 0;
            color: inherit;
        }

        .article-divider {
            border: none;
            height: 1px;
            background: var(--border);
            margin: 40px 0 32px;
        }

        .article-tags-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            padding-top: 8px;
        }

        .article-tags-label {
            font-weight: 600;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .article-tag {
            padding: 6px 14px;
            background: var(--bg-warm);
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .article-tag:hover {
            border-color: var(--border);
            background: var(--bg-card);
            box-shadow: var(--shadow-xs);
            color: var(--primary);
        }

        /* Related Articles */
        .related-section {
            padding: 20px 0 60px;
            background: var(--bg);
        }

        .related-section .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-dark);
            margin-bottom: 8px;
        }

        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 36px;
            letter-spacing: -0.02em;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .related-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-warm);
            position: relative;
        }

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

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

        .related-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-category {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-dark);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 8px;
        }

        .related-card-title {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .related-card:hover .related-card-title {
            color: var(--accent-dark);
        }

        .related-card-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.55;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-meta {
            font-size: 0.82rem;
            color: var(--text-light);
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

        /* CTA Section */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(160deg, #1a1a2e 0%, #252545 50%, #1f1f3a 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            mix-blend-mode: soft-light;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .cta-inner p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.7);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary-cta {
            padding: 14px 32px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 20px rgba(201,169,110,0.45);
            border: none;
            cursor: pointer;
        }

        .btn-primary-cta:hover {
            background: var(--accent-dark);
            box-shadow: 0 8px 28px rgba(201,169,110,0.6);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline-cta {
            padding: 14px 32px;
            background: transparent;
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            border: 2px solid rgba(255,255,255,0.3);
            cursor: pointer;
        }

        .btn-outline-cta:hover {
            border-color: rgba(255,255,255,0.7);
            background: rgba(255,255,255,0.08);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 32px;
            margin-top: auto;
        }

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

        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.65;
            color: rgba(255,255,255,0.6);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 9px;
        }

        .footer-col ul li a {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            padding: 4px 0;
            display: inline-block;
        }

        .footer-col ul li a:hover {
            color: var(--accent-light);
            padding-left: 3px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.45);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-banner .banner-title {
                font-size: 1.9rem;
            }
            .article-body-wrapper {
                padding: 36px 32px;
                margin-top: -40px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
            }
            .site-header {
                top: 10px;
                max-width: calc(100% - 20px);
            }
            .nav-capsule {
                padding: 6px 8px;
                gap: 2px;
                flex-wrap: nowrap;
            }
            .nav-logo {
                font-size: 0.9rem;
                padding: 6px 10px 6px 6px;
                gap: 6px;
            }
            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .nav-link {
                padding: 8px 12px;
                font-size: 0.82rem;
            }
            .nav-cta-btn {
                padding: 8px 14px;
                font-size: 0.8rem;
                margin-left: 2px;
            }
            .nav-links {
                gap: 1px;
            }
            .article-banner {
                padding: 120px 0 60px;
                min-height: 300px;
            }
            .article-banner .banner-title {
                font-size: 1.55rem;
            }
            .article-banner .banner-meta {
                font-size: 0.85rem;
                gap: 10px;
            }
            .article-body-wrapper {
                padding: 28px 20px;
                margin-top: -30px;
                border-radius: var(--radius-md);
            }
            .article-content {
                font-size: 1rem;
                line-height: 1.75;
            }
            .article-content h2 {
                font-size: 1.35rem;
            }
            .article-content h3 {
                font-size: 1.15rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .related-section .section-title {
                font-size: 1.4rem;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
            .cta-inner p {
                font-size: 0.95rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: auto;
            }
            .banner-not-found h1 {
                font-size: 1.6rem;
            }
            .banner-not-found p {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .site-header {
                top: 6px;
                max-width: calc(100% - 12px);
            }
            .nav-capsule {
                padding: 4px 6px;
                gap: 0;
                border-radius: var(--radius-xl);
            }
            .nav-logo {
                font-size: 0.8rem;
                padding: 5px 8px 5px 4px;
                gap: 4px;
            }
            .nav-logo-icon {
                width: 26px;
                height: 26px;
                font-size: 0.75rem;
            }
            .nav-link {
                padding: 7px 10px;
                font-size: 0.75rem;
                border-radius: var(--radius-lg);
            }
            .nav-cta-btn {
                padding: 7px 12px;
                font-size: 0.75rem;
                margin-left: 0;
                border-radius: var(--radius-lg);
            }
            .nav-links {
                gap: 0;
            }
            .article-banner {
                padding: 110px 0 50px;
                min-height: 260px;
            }
            .article-banner .banner-title {
                font-size: 1.3rem;
            }
            .article-banner .banner-category {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .article-body-wrapper {
                padding: 20px 16px;
                margin-top: -24px;
                border-radius: var(--radius);
            }
            .article-content {
                font-size: 0.95rem;
            }
            .related-card-body {
                padding: 14px 16px 18px;
            }
            .related-card-title {
                font-size: 0.98rem;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-inner h2 {
                font-size: 1.3rem;
            }
            .btn-primary-cta,
            .btn-outline-cta {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .banner-not-found {
                min-height: 320px;
                padding: 130px 20px 80px;
            }
            .banner-not-found h1 {
                font-size: 1.4rem;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #1a2740;
            --color-primary-light: #243450;
            --color-accent: #c8956c;
            --color-accent-light: #d9b38c;
            --color-accent-dark: #a6774d;
            --color-emphasis: #b5343a;
            --color-emphasis-light: #d44a50;
            --color-bg: #f5f3ef;
            --color-bg-alt: #ede8e0;
            --color-card: #ffffff;
            --color-text: #1f2937;
            --color-text-soft: #6b7280;
            --color-text-light: #9ca3af;
            --color-border: #e0dcd5;
            --color-border-light: #eeeae4;
            --color-success: #10b981;
            --color-info: #5b8cb8;
            --color-warning: #e8a840;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --shadow-sm: 0 1px 3px rgba(26, 39, 64, 0.06);
            --shadow-md: 0 4px 16px rgba(26, 39, 64, 0.08);
            --shadow-lg: 0 8px 32px rgba(26, 39, 64, 0.12);
            --shadow-xl: 0 16px 48px rgba(26, 39, 64, 0.16);
            --shadow-nav: 0 2px 20px rgba(26, 39, 64, 0.10);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
            --max-width: 1200px;
            --nav-height: 64px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

        /* ========== Reset & Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
        }

        /* ========== Container ========== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Header & Navigation ========== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(var(--max-width) - 48px);
            width: calc(100% - 48px);
        }

        .nav-capsule {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-full);
            padding: 6px 8px 6px 20px;
            box-shadow: var(--shadow-nav);
            gap: 16px;
            transition: all var(--transition-smooth);
        }

        .nav-capsule:hover {
            box-shadow: var(--shadow-lg);
            background: rgba(255, 255, 255, 0.94);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.18rem;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.02em;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: #fff;
            border-radius: var(--radius-md);
            font-size: 1.1rem;
            font-weight: 800;
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            color: var(--color-primary);
            background: rgba(26, 39, 64, 0.05);
        }

        .nav-link.active {
            color: #fff;
            background: var(--color-primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 39, 64, 0.25);
        }

        .nav-link.active:hover {
            background: var(--color-primary-light);
            color: #fff;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
            color: #fff;
            white-space: nowrap;
            transition: all var(--transition-smooth);
            box-shadow: 0 2px 10px rgba(200, 149, 108, 0.3);
            margin-left: 4px;
        }

        .nav-cta-btn:hover {
            background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
            box-shadow: 0 4px 18px rgba(200, 149, 108, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }

        .nav-cta-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(200, 149, 108, 0.3);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-full);
            background: transparent;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(26, 39, 64, 0.06);
        }

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

        .nav-toggle span::before,
        .nav-toggle span::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }

        .nav-toggle span::before {
            top: -6px;
        }

        .nav-toggle span::after {
            top: 6px;
        }

        .nav-toggle.open span {
            background: transparent;
        }

        .nav-toggle.open span::before {
            top: 0;
            transform: rotate(45deg);
        }

        .nav-toggle.open span::after {
            top: 0;
            transform: rotate(-45deg);
        }

        /* ========== Page Banner ========== */
        .page-banner {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background: linear-gradient(170deg, var(--color-primary) 0%, #1e3350 40%, #1a2a40 100%);
            overflow: hidden;
            margin-top: 0;
            padding-top: 100px;
            padding-bottom: 60px;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.28;
            mix-blend-mode: overlay;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
        }

        .banner-inner {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.75rem;
        }

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

        .banner-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.03em;
            margin-bottom: 14px;
            line-height: 1.25;
        }

        .banner-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.6;
        }

        .banner-stats-row {
            display: flex;
            gap: 28px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .banner-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-md);
            padding: 14px 20px;
            color: #fff;
        }

        .banner-stat-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .banner-stat-icon.trend {
            background: rgba(200, 149, 108, 0.35);
            color: var(--color-accent-light);
        }

        .banner-stat-icon.hot {
            background: rgba(181, 52, 58, 0.35);
            color: #f87171;
        }

        .banner-stat-icon.data {
            background: rgba(91, 140, 184, 0.35);
            color: #93c5fd;
        }

        .banner-stat-val {
            font-size: 1.5rem;
            font-weight: 700;
            line-height: 1;
            letter-spacing: 0.02em;
        }

        .banner-stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 2px;
        }

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

        .section-sm {
            padding: var(--section-gap-sm) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--color-accent-dark);
            background: rgba(200, 149, 108, 0.1);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            max-width: 560px;
            margin: 0 auto;
        }

        /* ========== Grid & Cards ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }

        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }

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

        .card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

        .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--color-bg-alt);
        }

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

        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 13px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            z-index: 2;
        }

        .card-badge.hot {
            background: var(--color-emphasis);
            color: #fff;
        }

        .card-badge.new {
            background: var(--color-success);
            color: #fff;
        }

        .card-badge.recommend {
            background: var(--color-accent);
            color: #fff;
        }

        .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .card-text {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--color-text-light);
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent-dark);
            transition: all var(--transition-fast);
            margin-top: auto;
        }

        .card-link:hover {
            color: var(--color-primary);
            gap: 10px;
        }

        .card-link .arrow {
            transition: transform var(--transition-fast);
        }

        .card-link:hover .arrow {
            transform: translateX(3px);
        }

        /* ========== Stats Row ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
        }

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

        .stat-card .stat-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.4rem;
        }

        .stat-card .stat-icon.blue {
            background: rgba(91, 140, 184, 0.12);
            color: var(--color-info);
        }

        .stat-card .stat-icon.gold {
            background: rgba(200, 149, 108, 0.12);
            color: var(--color-accent);
        }

        .stat-card .stat-icon.red {
            background: rgba(181, 52, 58, 0.1);
            color: var(--color-emphasis);
        }

        .stat-card .stat-icon.green {
            background: rgba(16, 185, 129, 0.1);
            color: var(--color-success);
        }

        .stat-card .stat-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            line-height: 1;
            margin-bottom: 4px;
        }

        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-soft);
        }

        /* ========== Ranking Table ========== */
        .ranking-table-wrap {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .ranking-table {
            width: 100%;
            border-collapse: collapse;
        }

        .ranking-table th {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            text-align: left;
            padding: 14px 20px;
            letter-spacing: 0.03em;
        }

        .ranking-table th:first-child {
            text-align: center;
            width: 60px;
        }

        .ranking-table td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--color-border-light);
            font-size: 0.95rem;
            color: var(--color-text);
        }

        .ranking-table tbody tr {
            transition: background var(--transition-fast);
        }

        .ranking-table tbody tr:hover {
            background: rgba(200, 149, 108, 0.04);
        }

        .ranking-table tbody tr:last-child td {
            border-bottom: none;
        }

        .rank-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.9rem;
        }

        .rank-num.top1 {
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: #fff;
        }

        .rank-num.top2 {
            background: linear-gradient(135deg, #9ca3af, #6b7280);
            color: #fff;
        }

        .rank-num.top3 {
            background: linear-gradient(135deg, #d4a853, #a6774d);
            color: #fff;
        }

        .rank-num.normal {
            background: var(--color-bg-alt);
            color: var(--color-text-soft);
        }

        .rank-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 600;
        }

        .rank-tag.up {
            background: rgba(16, 185, 129, 0.1);
            color: var(--color-success);
        }

        .rank-tag.down {
            background: rgba(181, 52, 58, 0.08);
            color: var(--color-emphasis);
        }

        .rank-tag.stable {
            background: rgba(91, 140, 184, 0.08);
            color: var(--color-info);
        }

        /* ========== Progress / Stage ========== */
        .stage-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .stage-item {
            text-align: center;
            position: relative;
            padding: 28px 18px;
            background: var(--color-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
        }

        .stage-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .stage-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-full);
            background: var(--color-primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 14px;
            transition: all var(--transition-smooth);
        }

        .stage-item:hover .stage-num {
            background: var(--color-accent);
            transform: scale(1.08);
        }

        .stage-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .stage-desc {
            font-size: 0.82rem;
            color: var(--color-text-soft);
            line-height: 1.5;
        }

        /* ========== Bracket Compare ========== */
        .bracket-compare {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 0;
            align-items: stretch;
            background: var(--color-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .bracket-side {
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .bracket-side.left {
            background: linear-gradient(135deg, rgba(91, 140, 184, 0.04) 0%, transparent 100%);
        }

        .bracket-side.right {
            background: linear-gradient(135deg, transparent 0%, rgba(200, 149, 108, 0.05) 100%);
        }

        .bracket-divider {
            width: 3px;
            background: linear-gradient(to bottom, var(--color-accent), var(--color-primary), var(--color-accent));
            border-radius: 2px;
            margin: 32px 0;
            flex-shrink: 0;
        }

        .bracket-label {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-primary);
            padding-bottom: 8px;
            border-bottom: 2px solid var(--color-border);
        }

        .bracket-nums {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .bracket-num-ball {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

        .bracket-num-ball.primary-ball {
            background: var(--color-emphasis);
            color: #fff;
        }

        .bracket-num-ball.secondary-ball {
            background: var(--color-info);
            color: #fff;
        }

        .bracket-num-ball:hover {
            transform: scale(1.12);
            box-shadow: var(--shadow-md);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            text-align: left;
            gap: 12px;
            transition: background var(--transition-fast);
        }

        .faq-q:hover {
            background: rgba(200, 149, 108, 0.03);
        }

        .faq-q .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: var(--radius-full);
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-smooth);
            color: var(--color-text-soft);
        }

        .faq-item.open .faq-q .faq-icon {
            background: var(--color-accent);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 22px;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            background: linear-gradient(160deg, var(--color-primary) 0%, #1e3350 100%);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            margin: 0 24px;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .cta-desc {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 149, 108, 0.35);
        }

        .btn-accent:hover {
            background: var(--color-accent-light);
            box-shadow: 0 6px 24px rgba(200, 149, 108, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 3px 12px rgba(200, 149, 108, 0.3);
        }

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

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
            margin-top: var(--section-gap);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .card-grid.cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stage-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .banner-title {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .bracket-compare {
                grid-template-columns: 1fr;
            }
            .bracket-divider {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                top: 8px;
                width: calc(100% - 24px);
                max-width: none;
            }
            .nav-capsule {
                padding: 6px 8px 6px 14px;
                gap: 8px;
            }
            .nav-logo {
                font-size: 1rem;
            }
            .nav-logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .nav-links {
                position: fixed;
                top: 90px;
                left: 16px;
                right: 16px;
                background: rgba(255, 255, 255, 0.96);
                backdrop-filter: blur(20px);
                border-radius: var(--radius-lg);
                flex-direction: column;
                padding: 16px;
                gap: 4px;
                box-shadow: var(--shadow-xl);
                border: 1px solid var(--color-border-light);
                transform: translateY(-12px);
                opacity: 0;
                pointer-events: none;
                transition: all var(--transition-smooth);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-link {
                width: 100%;
                justify-content: center;
                padding: 12px 18px;
                font-size: 1rem;
            }
            .nav-cta-btn {
                width: 100%;
                justify-content: center;
                margin-left: 0;
                margin-top: 4px;
                padding: 12px 18px;
            }
            .nav-toggle {
                display: flex;
            }
            .card-grid,
            .card-grid.cols-3,
            .card-grid.cols-2 {
                grid-template-columns: 1fr;
            }
            .stage-list {
                grid-template-columns: 1fr 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .banner-title {
                font-size: 1.8rem;
            }
            .banner-subtitle {
                font-size: 1rem;
            }
            .banner-stats-row {
                gap: 12px;
            }
            .banner-stat-item {
                padding: 10px 14px;
            }
            .banner-stat-val {
                font-size: 1.2rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 36px 24px;
                margin: 0 12px;
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .ranking-table th,
            .ranking-table td {
                padding: 10px 12px;
                font-size: 0.82rem;
            }
            .page-banner {
                min-height: 340px;
                padding-top: 80px;
                padding-bottom: 40px;
            }
        }

        @media (max-width: 520px) {
            .stage-list {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .banner-title {
                font-size: 1.5rem;
            }
            .banner-stats-row {
                flex-direction: column;
                gap: 8px;
            }
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .bracket-side {
                padding: 20px 16px;
            }
        }