/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0b1a30;
            --primary-light: #132a4a;
            --primary-dark: #060e1a;
            --accent: #2563eb;
            --accent-hover: #1d4ed8;
            --accent-light: #3b82f6;
            --gold: #f59e0b;
            --gold-light: #fbbf24;
            --gold-dark: #d97706;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0b1a30;
            --bg-section-alt: #f1f5f9;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-light: #94a3b8;
            --text-white: #ffffff;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12), 0 4px 16px rgba(0,0,0,0.06);
            --shadow-glow: 0 0 30px rgba(37,99,235,0.15);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
            --spacing-section: 90px;
            --spacing-block: 60px;
        }

        /* ===== 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent-hover); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: 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, 5.5vw, 3.8rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
        h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
        h4 { font-size: 1.1rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        p:last-child { margin-bottom: 0; }

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

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-md);
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
            border: 2px solid transparent;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            box-shadow: 0 4px 14px rgba(37,99,235,0.3);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37,99,235,0.35);
        }
        .btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(37,99,235,0.25); }
        .btn-gold {
            background: var(--gold);
            color: #fff;
            border-color: var(--gold);
            box-shadow: 0 4px 14px rgba(245,158,11,0.3);
        }
        .btn-gold:hover {
            background: var(--gold-dark);
            border-color: var(--gold-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245,158,11,0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: rgba(255,255,255,0.35);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: rgba(255,255,255,0.6);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 16px 42px;
            font-size: 1.05rem;
            border-radius: var(--radius-lg);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }
        .btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: 50px;
            background: rgba(37,99,235,0.1);
            color: var(--accent);
            letter-spacing: 0.3px;
            border: 1px solid rgba(37,99,235,0.15);
        }
        .badge-gold {
            background: rgba(245,158,11,0.12);
            color: var(--gold-dark);
            border-color: rgba(245,158,11,0.2);
        }
        .badge-green {
            background: rgba(16,185,129,0.1);
            color: #059669;
            border-color: rgba(16,185,129,0.15);
        }
        .tag {
            display: inline-block;
            padding: 2px 12px;
            font-size: 0.75rem;
            font-weight: 500;
            border-radius: var(--radius-sm);
            background: var(--bg-section-alt);
            color: var(--text-secondary);
            transition: background var(--transition);
        }
        .tag:hover { background: var(--border); }

        /* ===== Section ===== */
        .section {
            padding: var(--spacing-section) 0;
            position: relative;
        }
        .section-alt { background: var(--bg-section-alt); }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-dark h2,
        .section-dark h3,
        .section-dark .section-subtitle { color: var(--text-white); }
        .section-dark .section-subtitle { color: rgba(255,255,255,0.65); }
        .section-title {
            text-align: center;
            margin-bottom: 12px;
        }
        .section-subtitle {
            text-align: center;
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.6;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11, 26, 48, 0.85);
            backdrop-filter: blur(18px) saturate(1.3);
            -webkit-backdrop-filter: blur(18px) saturate(1.3);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            transition: background var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-left { display: flex; align-items: center; gap: 12px; }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent), var(--gold));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            color: #fff;
        }
        .logo span { color: var(--gold); }
        .logo-badge {
            font-size: 0.65rem;
            padding: 2px 10px;
            border-radius: 50px;
            background: rgba(245,158,11,0.2);
            color: var(--gold-light);
            border: 1px solid rgba(245,158,11,0.25);
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-left: 4px;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            color: rgba(255,255,255,0.7);
            padding: 8px 18px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.92rem;
            transition: all var(--transition);
            position: relative;
        }
        .nav-list a:hover {
            color: #fff;
            background: rgba(255,255,255,0.06);
        }
        .nav-list a.active {
            color: #fff;
            background: rgba(37,99,235,0.2);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-cta {
            margin-left: 12px;
        }
        .nav-cta .btn {
            padding: 8px 22px;
            font-size: 0.88rem;
            border-radius: var(--radius-md);
        }
        .mobile-toggle {
            display: none;
            color: #fff;
            font-size: 1.6rem;
            padding: 4px 8px;
            cursor: pointer;
            background: none;
            border: none;
            line-height: 1;
        }
        .mobile-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

        /* ===== Hero ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--bg-dark);
            overflow: hidden;
            padding-top: var(--nav-height);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            mix-blend-mode: luminosity;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(37,99,235,0.2) 0%, transparent 60%),
                        linear-gradient(180deg, rgba(11,26,48,0.3) 0%, var(--bg-dark) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
            padding: 80px 24px 100px;
            text-align: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 50px;
            color: rgba(255,255,255,0.8);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #10b981;
            animation: pulse-dot 1.8s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.85); }
        }
        .hero h1 {
            color: #fff;
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
            line-height: 1.15;
        }
        .hero h1 span {
            background: linear-gradient(135deg, var(--gold-light), var(--gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.65);
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            align-items: center;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 56px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
            color: #fff;
        }
        .hero-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold-light);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            margin-top: 4px;
        }
        .hero-stat-divider {
            width: 1px;
            height: 50px;
            background: rgba(255,255,255,0.08);
            align-self: center;
        }

        /* ===== Features / Core ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(37,99,235,0.12);
        }
        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.8rem;
            background: rgba(37,99,235,0.08);
            color: var(--accent);
        }
        .feature-card h3 { margin-bottom: 10px; font-size: 1.15rem; }
        .feature-card p { font-size: 0.92rem; color: var(--text-muted); margin-bottom: 0; }

        /* ===== Category / Game Center ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card-img {
            height: 200px;
            background: var(--primary-light);
            position: relative;
            overflow: hidden;
        }
        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card:hover .category-card-img img {
            transform: scale(1.05);
        }
        .category-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card-body h3 {
            margin-bottom: 8px;
            font-size: 1.1rem;
        }
        .category-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex: 1;
        }
        .category-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

        /* ===== Latest News / CMS List ===== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .news-card-img {
            height: 180px;
            background: var(--primary-light);
            overflow: hidden;
            position: relative;
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-card-img img {
            transform: scale(1.04);
        }
        .news-card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(11,26,48,0.75);
            backdrop-filter: blur(4px);
            color: #fff;
            border: none;
            font-size: 0.72rem;
        }
        .news-card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card-body .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .news-card-body .meta span { display: flex; align-items: center; gap: 4px; }
        .news-card-body h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card-body h3 a {
            color: var(--text-primary);
            transition: color var(--transition);
        }
        .news-card-body h3 a:hover { color: var(--accent); }
        .news-card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
            flex: 1;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border);
        }

        /* ===== Stats / Data ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            padding: 32px 20px;
            background: rgba(255,255,255,0.04);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255,255,255,0.06);
            transition: background var(--transition);
        }
        .stat-item:hover { background: rgba(255,255,255,0.07); }
        .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--gold-light);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            margin-top: 6px;
        }

        /* ===== Flow / Process ===== */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            counter-reset: step;
        }
        .flow-step {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            position: relative;
            transition: all var(--transition);
        }
        .flow-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .flow-step::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(37,99,235,0.25);
        }
        .flow-step-icon {
            font-size: 2.2rem;
            margin-bottom: 14px;
            color: var(--accent);
        }
        .flow-step h4 { margin-bottom: 8px; font-size: 1.05rem; }
        .flow-step p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 0; }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            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);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-sm); }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover { background: rgba(0,0,0,0.02); }
        .faq-question .icon {
            font-size: 1.2rem;
            color: var(--text-light);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .icon { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 20px 0;
        }
        .cta-content h2 {
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-content p {
            color: rgba(255,255,255,0.65);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-content .btn { font-size: 1.05rem; padding: 16px 44px; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo { margin-bottom: 12px; font-size: 1.3rem; }
        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.45);
            max-width: 300px;
            line-height: 1.6;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            color: rgba(255,255,255,0.5);
            font-size: 0.88rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover { color: var(--gold-light); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { color: rgba(255,255,255,0.35); }
        .footer-bottom a:hover { color: rgba(255,255,255,0.6); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            :root { --spacing-section: 60px; --nav-height: 64px; }
            .nav-list { display: none; }
            .mobile-toggle { display: block; }
            .nav-list.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: rgba(11,26,48,0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid rgba(255,255,255,0.06);
            }
            .nav-list.mobile-open a { padding: 12px 16px; width: 100%; }
            .nav-list.mobile-open .nav-cta { margin-left: 0; margin-top: 8px; width: 100%; }
            .nav-list.mobile-open .nav-cta .btn { width: 100%; justify-content: center; }
            .hero { min-height: 90vh; }
            .hero .container { padding: 60px 20px 80px; }
            .hero-stats { gap: 24px; }
            .hero-stat-divider { display: none; }
            .features-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: 1fr; }
            .news-list { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .flow-grid { grid-template-columns: 1fr 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section-title { font-size: 1.6rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.8rem; }
            .hero-desc { font-size: 0.95rem; }
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .hero-stats { flex-direction: column; gap: 16px; }
            .hero-stat { display: flex; align-items: center; justify-content: center; gap: 12px; }
            .hero-stat-num { font-size: 1.5rem; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .stat-num { font-size: 2rem; }
            .flow-grid { grid-template-columns: 1fr; }
            .features-grid { gap: 18px; }
            .category-grid { gap: 18px; }
            .news-list { gap: 16px; }
            .faq-question { padding: 14px 18px; font-size: 0.92rem; }
            .faq-answer { padding: 0 18px 14px; }
            .btn-lg { padding: 14px 28px; font-size: 0.95rem; }
            .container { padding: 0 16px; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 8px; }
        .mt-16 { margin-top: 16px; }
        .mt-32 { margin-top: 32px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* roulang page: article */
/* ===== 设计变量 ===== */
    :root {
        --primary: #d4a017;
        --primary-dark: #b8860b;
        --primary-light: #f0d080;
        --primary-gradient: linear-gradient(135deg, #d4a017 0%, #f0d080 50%, #d4a017 100%);
        --accent: #1a1a2e;
        --accent-light: #2a2a4e;
        --bg-dark: #0d0d1a;
        --bg-card: #1a1a2e;
        --bg-card-hover: #22223a;
        --bg-body: #0f0f1f;
        --text-primary: #f5f0e8;
        --text-secondary: #c8c0b8;
        --text-muted: #8a8a9a;
        --border-color: rgba(212, 160, 23, 0.2);
        --border-hover: rgba(212, 160, 23, 0.5);
        --radius: 12px;
        --radius-lg: 20px;
        --radius-sm: 8px;
        --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.6);
        --shadow-glow: 0 0 30px rgba(212, 160, 23, 0.15);
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
        --container: 1200px;
        --header-h: 72px;
    }

    /* ===== 基础 Reset ===== */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
    }
    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text-primary);
        background: var(--bg-body);
        min-height: 100vh;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: color var(--transition);
    }
    a:hover {
        color: var(--primary-light);
    }
    a:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 4px;
        border-radius: 4px;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button,
    input,
    textarea {
        font-family: inherit;
        font-size: inherit;
    }
    ul {
        list-style: none;
    }

    /* ===== 容器 ===== */
    .container {
        width: 100%;
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
    }
    @media (max-width: 768px) {
        .container {
            padding: 0 16px;
        }
    }

    /* ===== 头部 / 导航 ===== */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: var(--header-h);
        background: rgba(13, 13, 26, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border-color);
        z-index: 1000;
        transition: background var(--transition), box-shadow var(--transition);
    }
    .site-header.scrolled {
        background: rgba(13, 13, 26, 0.98);
        box-shadow: 0 2px 32px rgba(0, 0, 0, 0.6);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: var(--header-h);
        gap: 24px;
    }

    /* Logo */
    .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: var(--primary-gradient);
        border-radius: 10px;
        font-size: 1.2rem;
        color: #0d0d1a;
        font-weight: 900;
        box-shadow: 0 0 20px rgba(212, 160, 23, 0.3);
    }
    .logo span {
        color: var(--primary);
    }

    /* 导航列表 */
    .nav-list {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .nav-list>li>a {
        display: block;
        padding: 8px 18px;
        border-radius: var(--radius-sm);
        font-size: 0.95rem;
        font-weight: 500;
        color: var(--text-secondary);
        transition: all var(--transition);
        position: relative;
    }
    .nav-list>li>a:hover {
        color: var(--text-primary);
        background: rgba(212, 160, 23, 0.08);
    }
    .nav-list>li>a.active {
        color: var(--primary);
        background: rgba(212, 160, 23, 0.12);
    }
    .nav-list>li>a.active::after {
        content: '';
        position: absolute;
        bottom: 2px;
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 2px;
        background: var(--primary-gradient);
        border-radius: 2px;
    }

    /* 导航 CTA */
    .nav-cta .btn {
        margin-left: 8px;
    }

    /* 移动端汉堡 */
    .hamburger {
        display: none;
        flex-direction: column;
        gap: 5px;
        cursor: pointer;
        padding: 8px;
        background: none;
        border: none;
        z-index: 1001;
    }
    .hamburger span {
        display: block;
        width: 28px;
        height: 2px;
        background: var(--text-primary);
        border-radius: 2px;
        transition: all var(--transition);
    }
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    @media (max-width: 768px) {
        .hamburger {
            display: flex;
        }
        .nav-list {
            position: fixed;
            top: var(--header-h);
            left: 0;
            width: 100%;
            flex-direction: column;
            background: rgba(13, 13, 26, 0.98);
            backdrop-filter: blur(16px);
            padding: 16px 24px 24px;
            gap: 4px;
            border-bottom: 1px solid var(--border-color);
            transform: translateY(-110%);
            opacity: 0;
            pointer-events: none;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .nav-list.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .nav-list>li>a {
            padding: 12px 16px;
            font-size: 1.05rem;
            width: 100%;
        }
        .nav-list>li>a.active::after {
            display: none;
        }
        .nav-cta .btn {
            margin-left: 0;
            margin-top: 8px;
            width: 100%;
            text-align: center;
        }
    }

    /* ===== 按钮 ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 10px 28px;
        border-radius: var(--radius-sm);
        font-weight: 600;
        font-size: 0.95rem;
        border: none;
        cursor: pointer;
        transition: all var(--transition);
        text-decoration: none;
        line-height: 1.4;
        white-space: nowrap;
    }
    .btn:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 4px;
    }
    .btn-gold {
        background: var(--primary-gradient);
        color: #0d0d1a;
        box-shadow: 0 4px 20px rgba(212, 160, 23, 0.3);
    }
    .btn-gold:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 32px rgba(212, 160, 23, 0.45);
        color: #0d0d1a;
    }
    .btn-gold:active {
        transform: translateY(0);
    }
    .btn-outline {
        background: transparent;
        color: var(--primary);
        border: 1.5px solid var(--primary);
    }
    .btn-outline:hover {
        background: rgba(212, 160, 23, 0.1);
        color: var(--primary-light);
        border-color: var(--primary-light);
    }
    .btn-sm {
        padding: 6px 18px;
        font-size: 0.85rem;
    }
    .btn-lg {
        padding: 14px 40px;
        font-size: 1.1rem;
        border-radius: var(--radius);
    }

    /* ===== 页面主体偏移 ===== */
    .page-main {
        padding-top: var(--header-h);
    }

    /* ===== 文章 Banner ===== */
    .article-banner {
        position: relative;
        padding: 80px 0 60px;
        background: linear-gradient(160deg, #0d0d1a 0%, #1a1a2e 50%, #0d0d1a 100%);
        border-bottom: 1px solid var(--border-color);
        overflow: hidden;
    }
    .article-banner::before {
        content: '';
        position: absolute;
        top: -30%;
        right: -10%;
        width: 500px;
        height: 500px;
        background: radial-gradient(circle, rgba(212, 160, 23, 0.08) 0%, transparent 70%);
        border-radius: 50%;
        pointer-events: none;
    }
    .article-banner .container {
        position: relative;
        z-index: 1;
    }
    .article-breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.9rem;
        color: var(--text-muted);
        margin-bottom: 24px;
        flex-wrap: wrap;
    }
    .article-breadcrumb a {
        color: var(--text-muted);
    }
    .article-breadcrumb a:hover {
        color: var(--primary);
    }
    .article-breadcrumb .sep {
        color: var(--text-muted);
        opacity: 0.5;
    }
    .article-breadcrumb .current {
        color: var(--primary);
    }
    .article-banner h1 {
        font-size: 2.4rem;
        font-weight: 800;
        line-height: 1.3;
        color: var(--text-primary);
        max-width: 900px;
        margin-bottom: 20px;
    }
    .article-meta {
        display: flex;
        align-items: center;
        gap: 24px;
        flex-wrap: wrap;
        font-size: 0.9rem;
        color: var(--text-secondary);
    }
    .article-meta .meta-item {
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .article-meta .meta-item i {
        color: var(--primary);
        font-size: 0.85rem;
    }
    .article-meta .tag {
        display: inline-block;
        padding: 2px 12px;
        background: rgba(212, 160, 23, 0.15);
        color: var(--primary);
        border-radius: 20px;
        font-size: 0.8rem;
        font-weight: 500;
    }

    @media (max-width: 768px) {
        .article-banner {
            padding: 60px 0 40px;
        }
        .article-banner h1 {
            font-size: 1.6rem;
        }
        .article-meta {
            gap: 12px;
        }
    }

    /* ===== 文章正文区域 ===== */
    .article-section {
        padding: 60px 0 80px;
    }
    .article-layout {
        display: grid;
        grid-template-columns: 1fr 320px;
        gap: 48px;
        align-items: start;
    }
    @media (max-width: 1024px) {
        .article-layout {
            grid-template-columns: 1fr;
            gap: 40px;
        }
    }

    /* 正文 */
    .article-body {
        background: var(--bg-card);
        border-radius: var(--radius-lg);
        padding: 48px;
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow);
    }
    .article-body .content {
        font-size: 1.05rem;
        line-height: 1.9;
        color: var(--text-secondary);
    }
    .article-body .content p {
        margin-bottom: 1.6em;
    }
    .article-body .content h2 {
        font-size: 1.6rem;
        font-weight: 700;
        color: var(--text-primary);
        margin: 2em 0 0.8em;
        padding-bottom: 0.4em;
        border-bottom: 1px solid var(--border-color);
    }
    .article-body .content h3 {
        font-size: 1.25rem;
        font-weight: 600;
        color: var(--text-primary);
        margin: 1.8em 0 0.6em;
    }
    .article-body .content ul,
    .article-body .content ol {
        margin: 1em 0 1.6em;
        padding-left: 1.6em;
    }
    .article-body .content li {
        margin-bottom: 0.5em;
    }
    .article-body .content ul li {
        list-style: disc;
    }
    .article-body .content ol li {
        list-style: decimal;
    }
    .article-body .content a {
        color: var(--primary);
        text-decoration: underline;
        text-underline-offset: 3px;
    }
    .article-body .content a:hover {
        color: var(--primary-light);
    }
    .article-body .content blockquote {
        margin: 1.6em 0;
        padding: 16px 24px;
        background: rgba(212, 160, 23, 0.06);
        border-left: 4px solid var(--primary);
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-secondary);
        font-style: italic;
    }
    .article-body .content img {
        border-radius: var(--radius);
        margin: 1.6em 0;
        box-shadow: var(--shadow);
    }
    .article-body .content .align-center {
        text-align: center;
    }
    .article-body .content .caption {
        text-align: center;
        font-size: 0.85rem;
        color: var(--text-muted);
        margin-top: -0.8em;
        margin-bottom: 1.6em;
    }

    @media (max-width: 768px) {
        .article-body {
            padding: 24px;
        }
        .article-body .content {
            font-size: 1rem;
        }
        .article-body .content h2 {
            font-size: 1.3rem;
        }
        .article-body .content h3 {
            font-size: 1.1rem;
        }
    }

    /* ===== 侧边栏 ===== */
    .article-sidebar {
        display: flex;
        flex-direction: column;
        gap: 32px;
    }
    .sidebar-card {
        background: var(--bg-card);
        border-radius: var(--radius);
        border: 1px solid var(--border-color);
        padding: 28px 24px;
        box-shadow: var(--shadow);
    }
    .sidebar-card h3 {
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 16px;
        padding-bottom: 12px;
        border-bottom: 1px solid var(--border-color);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .sidebar-card h3 i {
        color: var(--primary);
    }
    .sidebar-list li {
        padding: 10px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .sidebar-list li:last-child {
        border-bottom: none;
    }
    .sidebar-list li a {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        color: var(--text-secondary);
        font-size: 0.92rem;
        transition: color var(--transition);
    }
    .sidebar-list li a:hover {
        color: var(--primary);
    }
    .sidebar-list li a .num {
        color: var(--primary);
        font-weight: 600;
        font-size: 0.85rem;
        min-width: 24px;
    }
    .sidebar-cta {
        text-align: center;
    }
    .sidebar-cta p {
        color: var(--text-secondary);
        font-size: 0.92rem;
        margin-bottom: 16px;
    }
    .sidebar-cta .btn {
        width: 100%;
    }

    /* ===== 内容未找到 ===== */
    .not-found-box {
        text-align: center;
        padding: 80px 24px;
        background: var(--bg-card);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow);
    }
    .not-found-box .icon {
        font-size: 4rem;
        color: var(--primary);
        margin-bottom: 24px;
        opacity: 0.6;
    }
    .not-found-box h2 {
        font-size: 1.6rem;
        color: var(--text-primary);
        margin-bottom: 16px;
    }
    .not-found-box p {
        color: var(--text-secondary);
        margin-bottom: 24px;
        font-size: 1.05rem;
    }
    .not-found-box .btn {
        display: inline-flex;
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background: #0a0a16;
        border-top: 1px solid var(--border-color);
        padding: 60px 0 0;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.8fr 1fr 1fr 1fr;
        gap: 40px;
        padding-bottom: 40px;
    }
    .footer-brand .logo {
        margin-bottom: 16px;
        font-size: 1.4rem;
    }
    .footer-brand p {
        color: var(--text-muted);
        font-size: 0.9rem;
        line-height: 1.7;
        max-width: 360px;
    }
    .footer-col h4 {
        font-size: 1rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 18px;
        position: relative;
        padding-bottom: 10px;
    }
    .footer-col h4::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 30px;
        height: 2px;
        background: var(--primary-gradient);
        border-radius: 2px;
    }
    .footer-col ul li {
        margin-bottom: 10px;
    }
    .footer-col ul li a {
        color: var(--text-muted);
        font-size: 0.9rem;
        transition: color var(--transition);
    }
    .footer-col ul li a:hover {
        color: var(--primary);
    }
    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        padding: 20px 0;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        font-size: 0.85rem;
        color: var(--text-muted);
    }
    .footer-bottom a {
        color: var(--text-muted);
    }
    .footer-bottom a:hover {
        color: var(--primary);
    }

    @media (max-width: 768px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 32px 24px;
        }
        .footer-brand {
            grid-column: 1 / -1;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }
    @media (max-width: 520px) {
        .footer-grid {
            grid-template-columns: 1fr;
        }
    }

    /* ===== 响应式微调 ===== */
    @media (max-width: 520px) {
        .article-banner h1 {
            font-size: 1.3rem;
        }
        .article-body {
            padding: 16px;
        }
        .sidebar-card {
            padding: 20px 16px;
        }
    }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
    --primary: #D4A853;
    --primary-dark: #B8923A;
    --primary-light: #E8C97A;
    --primary-glow: rgba(212, 168, 83, 0.25);
    --bg-dark: #0F0F1A;
    --bg-dark2: #1A1A2E;
    --bg-dark3: #222240;
    --bg-light: #FFFFFF;
    --bg-gray: #F5F7FA;
    --bg-card: #FFFFFF;
    --text-dark: #1C1C1E;
    --text-light: #F5F5F7;
    --text-muted: #8E8E93;
    --text-gray: #6B7280;
    --border: #E5E5EA;
    --border-light: rgba(255,255,255,0.12);
    --radius: 14px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
    --shadow-gold: 0 4px 24px rgba(212,168,83,0.3);
    --font: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
    --transition: all 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
    --max-width: 1200px;
    --nav-height: 72px;
}
/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-height)}
body{font-family:var(--font);font-size:16px;line-height:1.7;color:var(--text-dark);background:var(--bg-light);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit;outline:none;border:none;background:none}
button{cursor:pointer}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
@media(max-width:768px){.container{padding:0 18px}}
/* ===== Typography ===== */
h1,h2,h3,h4,h5,h6{line-height:1.25;font-weight:700;color:var(--text-dark)}
h1{font-size:3rem;letter-spacing:-0.02em}
h2{font-size:2.25rem;letter-spacing:-0.01em;margin-bottom:16px}
h3{font-size:1.5rem;margin-bottom:12px}
h4{font-size:1.125rem;margin-bottom:8px}
p{color:var(--text-gray);margin-bottom:16px}
.section-subtitle{font-size:1.05rem;color:var(--text-muted);max-width:640px;margin:0 auto 40px;text-align:center;line-height:1.7}
.section-label{display:inline-block;font-size:0.8rem;font-weight:600;text-transform:uppercase;letter-spacing:0.08em;color:var(--primary);background:rgba(212,168,83,0.12);padding:6px 16px;border-radius:100px;margin-bottom:12px}
/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 32px;border-radius:100px;font-weight:600;font-size:0.95rem;transition:var(--transition);border:2px solid transparent;white-space:nowrap}
.btn-primary{background:var(--primary);color:var(--bg-dark);border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-gold)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--text-light);border-color:rgba(255,255,255,0.3)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-gold{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--bg-dark);border:none;font-weight:700}
.btn-gold:hover{background:linear-gradient(135deg,var(--primary-light),var(--primary));transform:translateY(-2px);box-shadow:var(--shadow-gold)}
.btn-sm{padding:10px 22px;font-size:0.85rem}
.btn-lg{padding:16px 40px;font-size:1.05rem}
.btn i{font-size:0.9em}
/* ===== Header / Nav ===== */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(15,15,26,0.92);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid rgba(255,255,255,0.06);height:var(--nav-height);transition:var(--transition)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.logo{display:flex;align-items:center;gap:6px;font-size:1.35rem;font-weight:800;color:var(--text-light);letter-spacing:-0.02em;flex-shrink:0}
.logo .logo-icon{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));border-radius:10px;font-size:1.1rem;color:var(--bg-dark);font-weight:900}
.logo span{color:var(--primary);font-weight:700}
.nav-list{display:flex;align-items:center;gap:32px}
.nav-list li a{color:rgba(255,255,255,0.7);font-size:0.92rem;font-weight:500;padding:6px 0;position:relative;transition:var(--transition)}
.nav-list li a::after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:2px;background:var(--primary);border-radius:2px;transition:var(--transition)}
.nav-list li a:hover{color:var(--text-light)}
.nav-list li a:hover::after{width:100%}
.nav-list li a.active{color:var(--primary)}
.nav-list li a.active::after{width:100%}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:6px;background:none;border:none;cursor:pointer}
.nav-toggle span{display:block;width:26px;height:2.5px;background:var(--text-light);border-radius:4px;transition:var(--transition)}
@media(max-width:768px){
    .nav-toggle{display:flex}
    .nav-list{position:fixed;top:var(--nav-height);left:0;width:100%;flex-direction:column;background:rgba(15,15,26,0.98);backdrop-filter:blur(24px);padding:24px 20px 32px;gap:20px;transform:translateY(-120%);opacity:0;pointer-events:none;transition:var(--transition);border-bottom:1px solid var(--border-light);overflow-y:auto;max-height:calc(100vh - var(--nav-height))}
    .nav-list.open{transform:translateY(0);opacity:1;pointer-events:auto}
    .nav-list li a{font-size:1.05rem;padding:10px 0;display:block}
    .nav-cta{margin-left:0;margin-top:8px;width:100%}
    .nav-cta .btn{width:100%;justify-content:center}
    .nav-list li a::after{display:none}
}
/* ===== Hero Banner ===== */
.category-hero{position:relative;min-height:70vh;display:flex;align-items:center;justify-content:center;padding:120px 0 80px;overflow:hidden;background:var(--bg-dark)}
.category-hero .hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center center / cover no-repeat;opacity:0.35;transform:scale(1.05);animation:heroZoom 20s ease-in-out infinite alternate}
@keyframes heroZoom{0%{transform:scale(1.05)}100%{transform:scale(1.15)}}
.category-hero .hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,15,26,0.50) 0%,rgba(15,15,26,0.88) 70%,var(--bg-dark) 100%);z-index:1}
.category-hero .container{position:relative;z-index:2;text-align:center}
.category-hero h1{color:var(--text-light);font-size:3.5rem;font-weight:800;margin-bottom:16px;text-shadow:0 4px 32px rgba(0,0,0,0.4)}
.category-hero h1 .highlight{color:var(--primary)}
.category-hero .hero-desc{color:rgba(255,255,255,0.75);font-size:1.15rem;max-width:640px;margin:0 auto 32px;line-height:1.8}
.category-hero .hero-badges{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:28px}
.category-hero .hero-badges span{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,0.08);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.12);padding:8px 20px;border-radius:100px;font-size:0.85rem;color:rgba(255,255,255,0.85)}
.category-hero .hero-badges span i{color:var(--primary);font-size:0.9em}
.category-hero .hero-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
@media(max-width:768px){
    .category-hero{min-height:60vh;padding:100px 0 60px}
    .category-hero h1{font-size:2.2rem}
    .category-hero .hero-desc{font-size:1rem}
    .category-hero .hero-badges span{font-size:0.78rem;padding:6px 14px}
}
@media(max-width:520px){
    .category-hero h1{font-size:1.8rem}
    .category-hero .hero-actions .btn{width:100%}
}
/* ===== Section Common ===== */
.section{padding:80px 0}
.section-alt{background:var(--bg-gray)}
.section-dark{background:var(--bg-dark2);color:var(--text-light)}
.section-dark h2,.section-dark h3{color:var(--text-light)}
.section-dark p{color:rgba(255,255,255,0.65)}
.section-dark .section-subtitle{color:rgba(255,255,255,0.55)}
.section-title-wrap{text-align:center;margin-bottom:48px}
.section-title-wrap h2{margin-bottom:8px}
.section-title-wrap .section-subtitle{margin-bottom:0}
/* ===== Card Base ===== */
.card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;transition:var(--transition);border:1px solid var(--border);box-shadow:var(--shadow)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card-img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.card-body{padding:20px 22px 24px}
.card-body h3{font-size:1.15rem;margin-bottom:6px}
.card-body p{font-size:0.92rem;color:var(--text-muted);margin-bottom:12px}
.card-tag{display:inline-flex;align-items:center;gap:4px;font-size:0.75rem;font-weight:600;color:var(--primary);background:rgba(212,168,83,0.1);padding:4px 12px;border-radius:100px;margin-bottom:8px}
/* ===== Feature Cards ===== */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-card{background:var(--bg-card);border-radius:var(--radius);padding:36px 28px 32px;text-align:center;border:1px solid var(--border);transition:var(--transition);box-shadow:var(--shadow)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--primary)}
.feature-card .icon-wrap{width:64px;height:64px;margin:0 auto 20px;display:flex;align-items:center;justify-content:center;border-radius:16px;background:linear-gradient(135deg,rgba(212,168,83,0.12),rgba(212,168,83,0.04));font-size:1.6rem;color:var(--primary);transition:var(--transition)}
.feature-card:hover .icon-wrap{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--bg-dark)}
.feature-card h3{font-size:1.15rem;margin-bottom:8px}
.feature-card p{font-size:0.92rem;color:var(--text-muted);margin-bottom:0}
@media(max-width:768px){.feature-grid{grid-template-columns:1fr;gap:20px}}
/* ===== Game Grid ===== */
.game-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.game-card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:var(--transition);box-shadow:var(--shadow)}
.game-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.game-card .card-img{aspect-ratio:16/12}
.game-card .card-body{padding:16px 18px 18px}
.game-card .card-body h3{font-size:1rem;margin-bottom:4px}
.game-card .card-body p{font-size:0.82rem;color:var(--text-muted);margin-bottom:8px}
.game-card .card-meta{display:flex;align-items:center;justify-content:space-between;font-size:0.78rem;color:var(--text-muted)}
.game-card .card-meta i{color:var(--primary);margin-right:4px}
.game-card .badge{font-size:0.7rem;padding:3px 10px;border-radius:100px;background:rgba(212,168,83,0.1);color:var(--primary);font-weight:600}
@media(max-width:992px){.game-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.game-grid{grid-template-columns:1fr}}
/* ===== Stats ===== */
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;text-align:center}
.stat-item .stat-number{font-size:3rem;font-weight:800;color:var(--primary);line-height:1.1;margin-bottom:4px}
.stat-item .stat-label{font-size:0.92rem;color:var(--text-muted);font-weight:500}
.section-dark .stat-item .stat-label{color:rgba(255,255,255,0.6)}
@media(max-width:768px){.stats-grid{grid-template-columns:repeat(3,1fr);gap:20px}
.stat-item .stat-number{font-size:2rem}}
@media(max-width:520px){.stats-grid{grid-template-columns:1fr;gap:24px}}
/* ===== Tag Cloud ===== */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;max-width:800px;margin:0 auto}
.tag-item{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:100px;background:var(--bg-card);border:1px solid var(--border);font-size:0.9rem;font-weight:500;color:var(--text-dark);transition:var(--transition);box-shadow:var(--shadow)}
.tag-item:hover{background:var(--primary);color:var(--bg-dark);border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-gold)}
.tag-item i{font-size:0.85em}
.section-dark .tag-item{background:rgba(255,255,255,0.06);border-color:rgba(255,255,255,0.12);color:rgba(255,255,255,0.85)}
.section-dark .tag-item:hover{background:var(--primary);color:var(--bg-dark);border-color:var(--primary)}
@media(max-width:520px){.tag-item{padding:10px 18px;font-size:0.82rem}}
/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:var(--primary)}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;font-weight:600;font-size:1rem;color:var(--text-dark);cursor:pointer;gap:16px;user-select:none;background:none;width:100%;text-align:left}
.faq-question i{color:var(--primary);font-size:0.85rem;transition:var(--transition);flex-shrink:0}
.faq-item.open .faq-question i{transform:rotate(180deg)}
.faq-answer{padding:0 24px 18px;font-size:0.92rem;color:var(--text-muted);line-height:1.8;display:none}
.faq-item.open .faq-answer{display:block}
.section-dark .faq-item{background:rgba(255,255,255,0.04);border-color:rgba(255,255,255,0.1)}
.section-dark .faq-question{color:var(--text-light)}
.section-dark .faq-answer{color:rgba(255,255,255,0.65)}
/* ===== CTA ===== */
.cta-section{position:relative;padding:80px 0;background:var(--bg-dark);overflow:hidden;text-align:center}
.cta-section .cta-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center center / cover no-repeat;opacity:0.2;transform:scale(1.05)}
.cta-section .cta-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,15,26,0.85),rgba(26,26,46,0.92));z-index:1}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{color:var(--text-light);font-size:2.2rem;margin-bottom:12px}
.cta-section p{color:rgba(255,255,255,0.7);max-width:560px;margin:0 auto 28px;font-size:1.05rem}
.cta-section .cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
@media(max-width:520px){
    .cta-section h2{font-size:1.6rem}
    .cta-section .cta-actions .btn{width:100%}
}
/* ===== Footer ===== */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,0.7);padding:64px 0 32px;border-top:1px solid rgba(255,255,255,0.06)}
.site-footer .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.site-footer .footer-brand .logo{margin-bottom:16px;font-size:1.2rem}
.site-footer .footer-brand p{font-size:0.88rem;color:rgba(255,255,255,0.5);max-width:320px;line-height:1.7}
.site-footer .footer-col h4{color:var(--text-light);font-size:0.95rem;font-weight:600;margin-bottom:16px}
.site-footer .footer-col ul li{margin-bottom:10px}
.site-footer .footer-col ul li a{font-size:0.88rem;color:rgba(255,255,255,0.55);transition:var(--transition)}
.site-footer .footer-col ul li a:hover{color:var(--primary);padding-left:4px}
.site-footer .footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;padding-top:24px;border-top:1px solid rgba(255,255,255,0.06);font-size:0.82rem;color:rgba(255,255,255,0.4)}
.site-footer .footer-bottom a{color:rgba(255,255,255,0.5);transition:var(--transition)}
.site-footer .footer-bottom a:hover{color:var(--primary)}
@media(max-width:992px){.site-footer .footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:520px){.site-footer .footer-grid{grid-template-columns:1fr;gap:24px}
.site-footer .footer-bottom{flex-direction:column;gap:8px;text-align:center}}
/* ===== Section Divider ===== */
.section-divider{width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--primary-dark));border-radius:4px;margin:0 auto 16px}
.section-dark .section-divider{background:linear-gradient(90deg,var(--primary-light),var(--primary))}
/* ===== Back to Top ===== */
.back-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;border-radius:50%;background:var(--primary);color:var(--bg-dark);display:flex;align-items:center;justify-content:center;font-size:1.2rem;box-shadow:var(--shadow-gold);z-index:999;opacity:0;transform:translateY(20px);pointer-events:none;transition:var(--transition)}
.back-top.visible{opacity:1;transform:translateY(0);pointer-events:auto}
.back-top:hover{background:var(--primary-light);transform:translateY(-4px)}
/* ===== Responsive extras ===== */
@media(max-width:768px){
    .section{padding:56px 0}
    h1{font-size:2.2rem}
    h2{font-size:1.6rem}
    .section-title-wrap{margin-bottom:32px}
}
@media(max-width:520px){
    h1{font-size:1.8rem}
    h2{font-size:1.35rem}
    .section{padding:44px 0}
}