/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a1f3a;
            --primary-dark: #0d1128;
            --primary-light: #2a3050;
            --accent: #d4a853;
            --accent-light: #f0d080;
            --accent-dark: #b8923a;
            --accent-glow: rgba(212, 168, 83, 0.3);
            --secondary: #4a7aff;
            --secondary-light: #7a9aff;
            --bg-dark: #0b0f1a;
            --bg-card: #12162a;
            --bg-card-hover: #1a1f3a;
            --bg-section: #0f1322;
            --text-primary: #f0ede8;
            --text-secondary: #b8b4ae;
            --text-muted: #7a7874;
            --border-color: rgba(212, 168, 83, 0.15);
            --border-accent: rgba(212, 168, 83, 0.4);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.4);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 40px rgba(212, 168, 83, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-light); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
        h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
        h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
        h4 { font-size: 1.15rem; }
        p { color: var(--text-secondary); margin-bottom: 1rem; }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding { padding: 80px 0; }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -12px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            border-radius: 2px;
        }
        .section-title p {
            margin-top: 20px;
            font-size: 1.1rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .text-accent { color: var(--accent); }
        .text-center { text-align: center; }

        /* ===== Header & Navigation (分段标签导航) ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            z-index: 1000;
            background: rgba(11, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(11, 15, 26, 0.98);
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary-dark);
            font-weight: 900;
        }
        .logo span { color: var(--accent); }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-card);
            padding: 4px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }
        .nav-tabs a {
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-tabs a:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
        .nav-tabs a.active {
            color: var(--primary-dark);
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            font-weight: 600;
            box-shadow: var(--shadow-glow);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-cta .search-btn {
            background: transparent;
            color: var(--text-secondary);
            font-size: 1.2rem;
            cursor: pointer;
            padding: 8px;
            border-radius: 50%;
            transition: var(--transition);
        }
        .header-cta .search-btn:hover { color: var(--accent); background: rgba(212,168,83,0.1); }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
        }
        .btn-primary:hover { 
            transform: translateY(-2px);
            box-shadow: 0 8px 30px var(--accent-glow);
            color: var(--primary-dark);
        }
        .btn-primary i { font-size: 0.85rem; }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border-accent);
            background: transparent;
            color: var(--accent);
        }
        .btn-outline:hover {
            background: rgba(212,168,83,0.1);
            border-color: var(--accent);
            transform: translateY(-2px);
            color: var(--accent-light);
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
        }

        /* ===== Mobile Menu ===== */
        .mobile-toggle {
            display: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
        }
        .mobile-toggle:hover { background: rgba(255,255,255,0.05); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 24px 80px;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.4;
            transform: scale(1.05);
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11,15,26,0.85) 0%, rgba(11,15,26,0.6) 50%, rgba(11,15,26,0.95) 100%);
            z-index: 1;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(212,168,83,0.08) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(212,168,83,0.15);
            border: 1px solid var(--border-accent);
            font-size: 0.85rem;
            color: var(--accent);
            margin-bottom: 28px;
            backdrop-filter: blur(10px);
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero h1 {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 20px;
            background: linear-gradient(180deg, var(--text-primary) 0%, var(--accent-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: center;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid var(--border-color);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== Features ===== */
        .features {
            background: var(--bg-section);
            position: relative;
        }
        .features::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-accent);
            box-shadow: var(--shadow-glow);
            background: var(--bg-card-hover);
        }
        .feature-card .icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(212,168,83,0.15), rgba(212,168,83,0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent);
            border: 1px solid var(--border-accent);
        }
        .feature-card h3 { margin-bottom: 10px; font-size: 1.15rem; }
        .feature-card p { font-size: 0.92rem; margin-bottom: 0; }

        /* ===== Categories ===== */
        .categories {
            background: var(--bg-dark);
        }
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            display: flex;
            align-items: flex-end;
            cursor: pointer;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            background: var(--bg-card);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.6;
            transition: var(--transition);
        }
        .category-card:hover img { transform: scale(1.08); opacity: 0.8; }
        .category-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(11,15,26,0.9) 0%, transparent 60%);
            z-index: 1;
        }
        .category-card .info {
            position: relative;
            z-index: 2;
            padding: 20px;
            width: 100%;
        }
        .category-card .info h3 { font-size: 1.1rem; margin-bottom: 4px; }
        .category-card .info p { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 0; }
        .category-card .tag {
            position: absolute;
            top: 16px;
            right: 16px;
            z-index: 2;
            padding: 4px 12px;
            border-radius: 50px;
            background: rgba(212,168,83,0.2);
            border: 1px solid var(--border-accent);
            font-size: 0.75rem;
            color: var(--accent);
            backdrop-filter: blur(10px);
        }

        /* ===== Featured Games / 热门推荐 ===== */
        .featured {
            background: var(--bg-section);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .game-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .game-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-accent);
            box-shadow: var(--shadow-glow);
        }
        .game-card .thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }
        .game-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .game-card:hover .thumb img { transform: scale(1.05); }
        .game-card .thumb .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.72rem;
            font-weight: 600;
            background: rgba(212,168,83,0.9);
            color: var(--primary-dark);
            backdrop-filter: blur(10px);
        }
        .game-card .body {
            padding: 20px;
        }
        .game-card .body h3 { font-size: 1.05rem; margin-bottom: 6px; }
        .game-card .body p { font-size: 0.88rem; margin-bottom: 14px; color: var(--text-muted); }
        .game-card .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-muted);
            padding-top: 14px;
            border-top: 1px solid var(--border-color);
        }
        .game-card .meta .rating { color: var(--accent); }
        .game-card .meta .rating i { margin-right: 4px; }

        /* ===== Latest News / CMS 列表 ===== */
        .latest-news {
            background: var(--bg-dark);
        }
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
            max-width: 800px;
            margin: 0 auto;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .news-item:hover {
            border-color: var(--border-accent);
            background: var(--bg-card-hover);
            transform: translateX(4px);
        }
        .news-item .icon-box {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            background: rgba(212,168,83,0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.1rem;
            border: 1px solid var(--border-accent);
        }
        .news-item .content { flex: 1; min-width: 0; }
        .news-item .content h4 {
            font-size: 1rem;
            margin-bottom: 4px;
            transition: var(--transition);
        }
        .news-item:hover .content h4 { color: var(--accent); }
        .news-item .content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 8px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .news-item .meta .cat {
            padding: 2px 10px;
            border-radius: 50px;
            background: rgba(212,168,83,0.1);
            color: var(--accent);
            font-size: 0.72rem;
        }
        .news-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }
        .news-empty i { font-size: 2rem; margin-bottom: 16px; color: var(--accent); opacity: 0.5; }

        /* ===== Stats / 数据统计 ===== */
        .stats-section {
            background: var(--bg-section);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(212,168,83,0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .stat-block {
            padding: 24px;
        }
        .stat-block .num {
            font-size: 2.8rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-block .label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 8px;
        }
        .stat-block .desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== How It Works / 流程 ===== */
        .process {
            background: var(--bg-dark);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
        }
        .process-step .step-num {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            font-size: 1.4rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 30px var(--accent-glow);
        }
        .process-step h3 { font-size: 1.1rem; margin-bottom: 8px; }
        .process-step p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0; }
        .process-step::after {
            content: '';
            position: absolute;
            top: 28px;
            right: -16px;
            width: 32px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), transparent);
        }
        .process-step:last-child::after { display: none; }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-section);
        }
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.active { border-color: var(--border-accent); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            transition: var(--transition);
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover { color: var(--accent); }
        .faq-question i {
            font-size: 0.85rem;
            transition: var(--transition);
            color: var(--accent);
        }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }
        .faq-answer p { font-size: 0.92rem; color: var(--text-secondary); margin-bottom: 0; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(212,168,83,0.08) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--bg-card), var(--primary-light));
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            border: 1px solid var(--border-accent);
            position: relative;
            z-index: 1;
        }
        .cta-box h2 { margin-bottom: 16px; }
        .cta-box p { font-size: 1.05rem; max-width: 560px; margin: 0 auto 32px; }
        .cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .logo { margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; color: var(--text-muted); max-width: 320px; }
        .footer-col h4 {
            font-size: 0.95rem;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: var(--text-muted);
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .process-grid { grid-template-columns: repeat(2, 1fr); }
            .process-step:nth-child(2)::after { display: none; }
        }

        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .section-padding { padding: 56px 0; }
            .header-inner { padding: 0 16px; }
            .mobile-toggle { display: block; }
            .nav-tabs {
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                flex-direction: column;
                background: var(--bg-card);
                border-radius: 0;
                border: none;
                border-bottom: 1px solid var(--border-color);
                padding: 8px;
                gap: 4px;
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-tabs.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-tabs a { padding: 12px 20px; width: 100%; text-align: center; }
            .header-cta .btn-primary { display: none; }
            .hero { min-height: 90vh; padding: 100px 16px 60px; }
            .hero-stats { gap: 24px; }
            .hero-stat .num { font-size: 1.6rem; }
            .features-grid { grid-template-columns: 1fr 1fr; }
            .categories-grid { grid-template-columns: 1fr 1fr; }
            .featured-grid { grid-template-columns: 1fr; }
            .news-item { flex-direction: column; gap: 12px; padding: 16px; }
            .news-item .icon-box { width: 36px; height: 36px; font-size: 0.9rem; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
            .process-grid { grid-template-columns: 1fr; }
            .process-step::after { display: none; }
            .cta-box { padding: 36px 24px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
            .section-title { margin-bottom: 32px; }
        }

        @media (max-width: 520px) {
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 0.95rem; }
            .hero-actions { flex-direction: column; align-items: center; }
            .features-grid { grid-template-columns: 1fr; }
            .categories-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr; }
            .cta-actions { flex-direction: column; align-items: center; }
            .btn-lg { width: 100%; justify-content: center; }
        }

        /* ===== Utilities ===== */
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
        .fade-in { animation: fadeIn 0.8s ease forwards; }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* roulang page: category1 */
/* ===== CSS Variables & Design System ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --secondary: #0f3460;
            --accent: #e94560;
            --accent-hover: #ff6b81;
            --gold: #f5c518;
            --gold-light: #ffe082;
            --bg-dark: #0d0d1a;
            --bg-card: #1a1a2e;
            --bg-card-hover: #232344;
            --bg-section: #111128;
            --text-primary: #f0f0f0;
            --text-secondary: #b0b0c8;
            --text-muted: #7a7a9a;
            --border-color: #2a2a4a;
            --border-light: #3a3a5a;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(233, 69, 96, 0.15);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--accent);
        }

        /* ===== Header & Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(13, 13, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(13, 13, 26, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent), var(--gold));
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            font-weight: 900;
            color: #fff;
            box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
        }
        .logo span {
            color: var(--accent);
        }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-card);
            padding: 4px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow-x: auto;
            scrollbar-width: none;
        }
        .nav-tabs::-webkit-scrollbar {
            display: none;
        }
        .nav-tabs a {
            padding: 8px 24px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }
        .nav-tabs a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-tabs a.active {
            color: #fff;
            background: var(--accent);
            box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .nav-cta .search-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            color: var(--text-secondary);
            font-size: 1rem;
            transition: var(--transition);
        }
        .nav-cta .search-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: scale(1.05);
        }
        .nav-cta .btn-primary {
            padding: 8px 24px;
            background: linear-gradient(135deg, var(--accent), #ff6b81);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
            transition: var(--transition);
        }
        .nav-cta .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(233, 69, 96, 0.4);
            color: #fff;
        }
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        /* ===== Hero Banner ===== */
        .hero-banner {
            margin-top: var(--header-height);
            min-height: 420px;
            display: flex;
            align-items: center;
            position: relative;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-light) 50%, var(--bg-dark) 100%);
            overflow: hidden;
            padding: 80px 0 60px;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
            animation: heroZoom 12s ease-in-out infinite alternate;
        }
        @keyframes heroZoom {
            0% {
                transform: scale(1);
            }
            100% {
                transform: scale(1.08);
            }
        }
        .hero-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(13, 13, 26, 0.85) 0%, rgba(13, 13, 26, 0.4) 100%);
            z-index: 1;
        }
        .hero-banner .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff, var(--gold-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content .hero-sub {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 520px;
            line-height: 1.8;
        }
        .hero-content .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }
        .hero-content .hero-tags span {
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-content .hero-tags span i {
            color: var(--gold);
        }
        .hero-content .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-content .hero-actions .btn-primary {
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--accent), #ff6b81);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 8px 30px rgba(233, 69, 96, 0.35);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-content .hero-actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(233, 69, 96, 0.5);
            color: #fff;
        }
        .hero-content .hero-actions .btn-outline {
            padding: 14px 36px;
            background: transparent;
            color: var(--text-primary);
            border: 2px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-content .hero-actions .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(233, 69, 96, 0.08);
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        .hero-visual .hero-card-stack {
            position: relative;
            width: 100%;
            max-width: 440px;
            aspect-ratio: 4/3;
        }
        .hero-visual .hero-card-stack .card-item {
            position: absolute;
            width: 75%;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .hero-visual .hero-card-stack .card-item:nth-child(1) {
            top: 0;
            right: 0;
            z-index: 3;
            transform: rotate(2deg);
            background: var(--bg-card-hover);
            border-color: var(--accent);
        }
        .hero-visual .hero-card-stack .card-item:nth-child(2) {
            bottom: 10%;
            left: 0;
            z-index: 2;
            transform: rotate(-3deg);
        }
        .hero-visual .hero-card-stack .card-item:nth-child(3) {
            bottom: 0;
            right: 10%;
            z-index: 1;
            transform: rotate(5deg);
            opacity: 0.7;
        }
        .hero-visual .hero-card-stack .card-item .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }
        .hero-visual .hero-card-stack .card-item .card-icon.gold {
            background: rgba(245, 197, 24, 0.15);
            color: var(--gold);
        }
        .hero-visual .hero-card-stack .card-item .card-icon.accent {
            background: rgba(233, 69, 96, 0.15);
            color: var(--accent);
        }
        .hero-visual .hero-card-stack .card-item .card-icon.blue {
            background: rgba(15, 52, 96, 0.3);
            color: #4a8fd4;
        }
        .hero-visual .hero-card-stack .card-item .card-text h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .hero-visual .hero-card-stack .card-item .card-text p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== Section Shared ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            font-size: 2.4rem;
            font-weight: 900;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-header h2 .highlight {
            color: var(--accent);
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-header .divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--gold));
            border-radius: 2px;
            margin: 16px auto 0;
        }

        /* ===== Category Subnav ===== */
        .category-subnav {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            margin-bottom: 48px;
            padding: 8px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }
        .category-subnav a {
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .category-subnav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }
        .category-subnav a.active {
            color: #fff;
            background: var(--accent);
            box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
        }
        .category-subnav a i {
            font-size: 0.85rem;
        }

        /* ===== Guide Cards Grid ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            border-color: var(--accent);
            box-shadow: var(--shadow-lg), var(--shadow-glow);
        }
        .guide-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: var(--bg-dark);
        }
        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .card-img img {
            transform: scale(1.06);
        }
        .guide-card .card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            background: var(--accent);
            color: #fff;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
        }
        .guide-card .card-img .badge.gold {
            background: var(--gold);
            color: #000;
        }
        .guide-card .card-body {
            padding: 24px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .guide-card .card-body .meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .guide-card .card-body .meta span i {
            color: var(--accent);
        }
        .guide-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
            transition: var(--transition);
        }
        .guide-card:hover .card-body h3 {
            color: var(--accent);
        }
        .guide-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .guide-card .card-body .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 14px;
        }
        .guide-card .card-body .tags span {
            padding: 3px 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .guide-card .card-body .read-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent);
            transition: var(--transition);
        }
        .guide-card .card-body .read-more i {
            transition: transform 0.3s ease;
        }
        .guide-card .card-body .read-more:hover i {
            transform: translateX(4px);
        }

        /* ===== Stats Section ===== */
        .stats-section {
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .stats-section .container {
            position: relative;
            z-index: 1;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stats-item .stat-number {
            font-size: 3rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent), var(--gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stats-item .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }
        .stats-item .stat-icon {
            font-size: 1.6rem;
            color: var(--accent);
            margin-bottom: 12px;
            opacity: 0.7;
        }

        /* ===== Featured List (排行) ===== */
        .rank-list {
            display: grid;
            gap: 16px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: default;
        }
        .rank-item:hover {
            border-color: var(--accent);
            background: var(--bg-card-hover);
            transform: translateX(6px);
        }
        .rank-item .rank-num {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--text-muted);
            min-width: 40px;
            text-align: center;
            font-feature-settings: "tnum";
        }
        .rank-item:nth-child(1) .rank-num {
            color: var(--gold);
        }
        .rank-item:nth-child(2) .rank-num {
            color: #c0c0c0;
        }
        .rank-item:nth-child(3) .rank-num {
            color: #cd7f32;
        }
        .rank-item .rank-info {
            flex: 1;
        }
        .rank-item .rank-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 2px;
        }
        .rank-item .rank-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .rank-item .rank-stats {
            font-size: 0.85rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .rank-item .rank-stats i {
            color: var(--gold);
        }
        .rank-item .rank-badge {
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(233, 69, 96, 0.12);
            color: var(--accent);
            border: 1px solid rgba(233, 69, 96, 0.2);
        }

        /* ===== Steps / Timeline ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: var(--transition);
            position: relative;
            counter-increment: step;
        }
        .step-item:hover {
            border-color: var(--accent);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-item::before {
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 28px;
            height: 28px;
            background: var(--accent);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            font-weight: 800;
            box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
        }
        .step-item .step-icon {
            font-size: 2rem;
            color: var(--gold);
            margin-bottom: 16px;
            margin-top: 4px;
        }
        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: grid;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            color: var(--accent);
        }
        .faq-item .faq-q i {
            transition: transform 0.3s ease;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .faq-item.active .faq-q i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-a {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.06;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 900;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-section .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-section .cta-actions .btn-primary {
            padding: 16px 40px;
            background: linear-gradient(135deg, var(--accent), #ff6b81);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 8px 30px rgba(233, 69, 96, 0.35);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .cta-actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(233, 69, 96, 0.5);
            color: #fff;
        }
        .cta-section .cta-actions .btn-outline {
            padding: 16px 40px;
            background: transparent;
            color: var(--text-primary);
            border: 2px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1.05rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .cta-actions .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(233, 69, 96, 0.08);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .footer .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 360px;
        }
        .footer .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-primary);
            position: relative;
            padding-bottom: 10px;
        }
        .footer .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }
        .footer .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: var(--text-muted);
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer .footer-bottom {
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer .footer-bottom a {
            color: var(--text-muted);
        }
        .footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            background: var(--accent);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 8px 30px rgba(233, 69, 96, 0.3);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: var(--transition);
        }
        .back-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(233, 69, 96, 0.5);
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-content h1 {
                font-size: 2.4rem;
            }
            .hero-banner .container {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-visual .hero-card-stack {
                max-width: 360px;
                margin: 0 auto;
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 36px;
            }
            .section-header h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .nav-tabs {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(13, 13, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 12px;
                border-radius: 0;
                border: none;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                z-index: 999;
                overflow-y: auto;
                max-height: calc(100vh - var(--header-height));
            }
            .nav-tabs.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-tabs a {
                width: 100%;
                text-align: center;
                padding: 12px 20px;
                font-size: 1rem;
            }
            .mobile-toggle {
                display: flex;
            }
            .nav-cta .btn-primary {
                display: none;
            }
            .hero-banner {
                min-height: auto;
                padding: 60px 0 40px;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content .hero-sub {
                font-size: 1rem;
            }
            .hero-visual .hero-card-stack {
                max-width: 300px;
                aspect-ratio: 4/3;
            }
            .hero-visual .hero-card-stack .card-item {
                padding: 14px;
                width: 80%;
            }
            .hero-visual .hero-card-stack .card-item .card-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .hero-visual .hero-card-stack .card-item .card-text h4 {
                font-size: 0.85rem;
            }
            .hero-visual .hero-card-stack .card-item .card-text p {
                font-size: 0.7rem;
            }
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stats-item .stat-number {
                font-size: 2.2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-subnav {
                gap: 6px;
                padding: 6px;
            }
            .category-subnav a {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            .rank-item {
                padding: 14px 16px;
                gap: 14px;
                flex-wrap: wrap;
            }
            .rank-item .rank-num {
                font-size: 1.2rem;
                min-width: 28px;
            }
            .rank-item .rank-stats {
                width: 100%;
                justify-content: flex-start;
                font-size: 0.8rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-content .hero-actions .btn-primary,
            .hero-content .hero-actions .btn-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stats-item .stat-number {
                font-size: 1.8rem;
            }
            .rank-item .rank-info h4 {
                font-size: 0.95rem;
            }
            .cta-section .cta-actions .btn-primary,
            .cta-section .cta-actions .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .container {
                padding: 0 16px;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --secondary: #0f3460;
            --accent: #e94560;
            --gold: #f0c040;
            --gold-dark: #d4a830;
            --text: #f0f0f0;
            --text-muted: #a0a0b0;
            --text-dark: #1a1a2e;
            --bg: #0a0a1a;
            --card-bg: #1a1a2e;
            --card-border: #2a2a4a;
            --border: #2a2a4a;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.6);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container-width: 1200px;
            --nav-height: 72px;
        }

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

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

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: var(--gold);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: #fff;
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 4px;
            border-radius: 4px;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        ::selection {
            background: var(--gold);
            color: var(--text-dark);
        }

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

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 10, 26, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(240, 192, 64, 0.15);
            height: var(--nav-height);
            transition: var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            transition: var(--transition);
            text-decoration: none !important;
        }
        .logo:hover {
            color: var(--gold);
            transform: scale(1.02);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            color: var(--text-dark);
            border-radius: 10px;
            font-weight: 900;
            font-size: 1.4rem;
            box-shadow: 0 4px 12px rgba(240, 192, 64, 0.3);
        }
        .logo span {
            color: var(--gold);
        }
        .logo span:last-child {
            color: #fff;
        }

        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.05);
            padding: 4px;
            border-radius: 40px;
            border: 1px solid rgba(240, 192, 64, 0.1);
        }
        .nav-tabs a {
            display: inline-flex;
            align-items: center;
            padding: 10px 24px;
            border-radius: 32px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            text-decoration: none !important;
            white-space: nowrap;
            position: relative;
        }
        .nav-tabs a:hover {
            color: #fff;
            background: rgba(240, 192, 64, 0.08);
        }
        .nav-tabs a.active {
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            color: var(--text-dark);
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(240, 192, 64, 0.3);
        }
        .nav-tabs a.active:hover {
            color: var(--text-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(240, 192, 64, 0.4);
        }

        .nav-cta {
            display: none;
        }

        /* Mobile menu button */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            border: 1px solid rgba(240, 192, 64, 0.15);
            cursor: pointer;
            transition: var(--transition);
        }
        .menu-toggle:hover {
            background: rgba(240, 192, 64, 0.1);
        }
        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Main ===== */
        .main {
            flex: 1;
            padding-top: var(--nav-height);
            display: flex;
            flex-direction: column;
        }

        /* ===== Article Banner ===== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, rgba(10, 10, 26, 0.92), rgba(22, 33, 62, 0.88)),
                url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            border-bottom: 1px solid rgba(240, 192, 64, 0.1);
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
            max-width: 860px;
            text-align: center;
        }
        .article-banner .category-tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            color: var(--text-dark);
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            box-shadow: 0 4px 12px rgba(240, 192, 64, 0.25);
        }
        .article-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.3;
            color: #fff;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }
        .article-banner .meta {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 12px 24px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .article-banner .meta i {
            color: var(--gold);
            margin-right: 6px;
        }
        .article-banner .meta span {
            display: inline-flex;
            align-items: center;
        }

        .article-banner.error-banner h1 {
            font-size: 2rem;
        }
        .article-banner.error-banner .sub-text {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-top: 8px;
        }

        /* ===== Article Content ===== */
        .article-content-section {
            padding: 60px 0 40px;
            background: var(--bg);
        }
        .article-content-section .container {
            max-width: 860px;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
        }
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            color: #fff;
            margin-top: 36px;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .article-body h2 {
            font-size: 1.7rem;
            border-left: 4px solid var(--gold);
            padding-left: 16px;
        }
        .article-body h3 {
            font-size: 1.35rem;
        }
        .article-body p {
            margin-bottom: 20px;
        }
        .article-body a {
            color: var(--gold);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body a:hover {
            color: #fff;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 28px 0;
            box-shadow: var(--shadow);
            width: 100%;
        }
        .article-body blockquote {
            border-left: 4px solid var(--gold);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(240, 192, 64, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-body ul,
        .article-body ol {
            margin: 16px 0 20px 24px;
            color: var(--text);
        }
        .article-body ul li {
            list-style: disc;
            margin-bottom: 8px;
        }
        .article-body ol li {
            list-style: decimal;
            margin-bottom: 8px;
        }
        .article-body code {
            background: rgba(240, 192, 64, 0.1);
            padding: 2px 10px;
            border-radius: 6px;
            font-size: 0.9em;
            color: var(--gold);
        }
        .article-body pre {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 24px 0;
            border: 1px solid var(--card-border);
        }

        .article-body .content-img-wrapper {
            margin: 32px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .article-body .content-img-wrapper img {
            margin: 0;
            border-radius: 0;
        }
        .article-body .content-img-wrapper figcaption {
            padding: 12px 20px;
            background: var(--card-bg);
            color: var(--text-muted);
            font-size: 0.9rem;
            text-align: center;
            border-top: 1px solid var(--card-border);
        }

        /* Article not found */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--card-border);
            box-shadow: var(--shadow);
        }
        .not-found-box .icon {
            font-size: 3.6rem;
            color: var(--gold);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            margin-bottom: 12px;
            color: #fff;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 40px;
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            color: var(--text-dark);
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            text-decoration: none !important;
        }
        .not-found-box .btn-back:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(240, 192, 64, 0.35);
            color: var(--text-dark);
        }

        /* ===== Article Footer Meta ===== */
        .article-footer-meta {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--card-border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .article-tags .label {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .article-tags .tag {
            padding: 4px 16px;
            border-radius: 20px;
            background: rgba(240, 192, 64, 0.1);
            color: var(--gold);
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(240, 192, 64, 0.15);
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: rgba(240, 192, 64, 0.2);
            transform: translateY(-1px);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            border: 1px solid var(--card-border);
            transition: var(--transition);
            text-decoration: none !important;
            font-size: 1rem;
        }
        .article-share a:hover {
            background: var(--gold);
            color: var(--text-dark);
            border-color: var(--gold);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(240, 192, 64, 0.25);
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 60px 0;
            background: rgba(26, 26, 46, 0.4);
        }
        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .related-section .section-sub {
            color: var(--text-muted);
            margin-bottom: 36px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }
        .related-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--card-border);
            transition: var(--transition);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
            text-decoration: none !important;
            color: var(--text);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(240, 192, 64, 0.25);
            color: var(--text);
        }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .card-category {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 14px;
            background: rgba(240, 192, 64, 0.12);
            color: var(--gold);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .related-card .card-title {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 8px;
            color: #fff;
            transition: var(--transition);
        }
        .related-card:hover .card-title {
            color: var(--gold);
        }
        .related-card .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }
        .related-card .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid var(--card-border);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .related-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px dashed var(--card-border);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg);
        }
        .faq-section .container {
            max-width: 860px;
        }
        .faq-section .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            text-align: center;
            margin-bottom: 8px;
        }
        .faq-section .section-sub {
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 40px;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--card-border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(240, 192, 64, 0.15);
        }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            color: #fff;
            font-size: 1rem;
            transition: var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--gold);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--gold);
            font-size: 0.85rem;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-muted);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 60px 0 80px;
            background: linear-gradient(135deg, rgba(240, 192, 64, 0.06), rgba(233, 69, 96, 0.04));
            border-top: 1px solid rgba(240, 192, 64, 0.08);
        }
        .cta-section .container {
            max-width: 700px;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--text-muted);
            margin-bottom: 28px;
            font-size: 1.05rem;
        }
        .cta-section .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            border-radius: 40px;
            background: linear-gradient(135deg, var(--gold), var(--gold-dark));
            color: var(--text-dark);
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            text-decoration: none !important;
            box-shadow: 0 4px 16px rgba(240, 192, 64, 0.2);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(240, 192, 64, 0.35);
            color: var(--text-dark);
            text-decoration: none !important;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            border-radius: 40px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid var(--card-border);
            transition: var(--transition);
            text-decoration: none !important;
        }
        .btn-secondary:hover {
            background: rgba(240, 192, 64, 0.1);
            border-color: var(--gold);
            color: var(--gold);
            transform: translateY(-2px);
            text-decoration: none !important;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary);
            border-top: 1px solid rgba(240, 192, 64, 0.1);
            padding: 60px 0 30px;
            color: var(--text-muted);
        }
        .footer .logo {
            font-size: 1.4rem;
            margin-bottom: 12px;
        }
        .footer .logo .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 1.2rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition);
            text-decoration: none !important;
        }
        .footer-col a:hover {
            color: var(--gold);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
            text-decoration: none !important;
        }
        .footer-bottom a:hover {
            color: var(--gold);
        }
        .footer-bottom i {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .article-banner h1 {
                font-size: 2.2rem;
            }
        }

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

            .nav-tabs {
                gap: 4px;
                padding: 3px;
            }
            .nav-tabs a {
                padding: 8px 16px;
                font-size: 0.85rem;
            }

            .article-banner {
                padding: 60px 0 40px;
                min-height: 240px;
            }
            .article-banner h1 {
                font-size: 1.8rem;
            }
            .article-banner .meta {
                font-size: 0.85rem;
                gap: 8px 16px;
            }

            .article-content-section {
                padding: 40px 0 30px;
            }
            .article-body {
                font-size: 0.98rem;
            }
            .article-body h2 {
                font-size: 1.4rem;
            }

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

            .faq-question {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                font-size: 0.9rem;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 14px 28px;
                font-size: 0.95rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .header .container {
                padding: 0 12px;
            }
            .nav-tabs a {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .logo {
                font-size: 1.3rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1.1rem;
            }

            .article-banner h1 {
                font-size: 1.5rem;
            }
            .article-banner .category-tag {
                font-size: 0.75rem;
                padding: 4px 14px;
            }

            .article-body {
                font-size: 0.92rem;
            }
            .article-body h2 {
                font-size: 1.25rem;
                padding-left: 12px;
            }

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

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

            .cta-section h2 {
                font-size: 1.35rem;
            }
            .cta-section .btn-group {
                flex-direction: column;
                align-items: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        /* ===== Utility ===== */
        .text-gold {
            color: var(--gold);
        }
        .text-muted {
            color: var(--text-muted);
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mb-2 {
            margin-bottom: 8px;
        }
        .mb-4 {
            margin-bottom: 16px;
        }
        .mb-6 {
            margin-bottom: 24px;
        }
        .mt-4 {
            margin-top: 16px;
        }
        .mt-6 {
            margin-top: 24px;
        }
        .mt-8 {
            margin-top: 32px;
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-4 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .text-center {
            text-align: center;
        }

        /* Skip link */
        .skip-link {
            position: absolute;
            top: -100%;
            left: 16px;
            padding: 12px 24px;
            background: var(--gold);
            color: var(--text-dark);
            font-weight: 700;
            border-radius: 0 0 8px 8px;
            z-index: 10000;
            transition: top 0.3s;
            text-decoration: none !important;
        }
        .skip-link:focus {
            top: 0;
        }