/* roulang page: index */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: #0F0F1F;
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-subtle: rgba(6, 182, 212, 0.2);
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-glow: 0 0 25px rgba(163, 230, 53, 0.3);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
            --radius-card: 16px;
            --radius-btn: 30px;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --glass-bg: rgba(15, 15, 31, 0.7);
            --glass-border: rgba(6, 182, 212, 0.25);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.25;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition-base); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        .container-fluid, .container {
            max-width: 1320px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        /* ============ 导航 ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(7, 7, 13, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 10px 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--accent-lime) 0%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav .nav-link-custom {
            padding: 10px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: 30px;
            position: relative;
            display: flex;
            align-items: center;
            gap: 5px;
            white-space: nowrap;
        }
        .main-nav .nav-link-custom:hover,
        .main-nav .nav-link-custom.active {
            color: var(--text-primary);
            background: var(--glass-bg);
            border: 1px solid var(--border-glow);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-login {
            padding: 8px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255,255,255,0.3);
            border-radius: 30px;
            transition: var(--transition-base);
        }
        .btn-login:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
        }
        .btn-signup {
            padding: 9px 24px;
            font-weight: 700;
            font-size: 0.9rem;
            color: #07070D;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border: none;
            border-radius: 30px;
            box-shadow: 0 0 15px rgba(163, 230, 53, 0.4);
            transition: var(--transition-base);
        }
        .btn-signup:hover {
            box-shadow: 0 0 25px rgba(163, 230, 53, 0.65);
            transform: translateY(-1px);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: 1px solid rgba(255,255,255,0.2);
            color: white;
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
        }
        /* ============ HERO ============ */
        .hero-section {
            padding: 130px 0 80px;
            position: relative;
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--glass-bg);
            border: 1px solid var(--border-glow);
            backdrop-filter: blur(8px);
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent-lime);
            margin-bottom: 28px;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #FFFFFF 20%, var(--accent-lime) 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -1px;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .btn-primary-hero {
            padding: 14px 38px;
            font-weight: 700;
            font-size: 1.1rem;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #07070D;
            border: none;
            box-shadow: var(--shadow-glow);
            transition: var(--transition-base);
        }
        .btn-primary-hero:hover {
            box-shadow: 0 0 35px rgba(163, 230, 53, 0.6);
            transform: translateY(-2px);
        }
        .btn-outline-hero {
            padding: 14px 38px;
            font-weight: 700;
            font-size: 1.1rem;
            border-radius: 30px;
            border: 2px solid var(--accent-cyan);
            color: var(--accent-cyan);
            background: transparent;
            transition: var(--transition-base);
        }
        .btn-outline-hero:hover {
            background: rgba(6, 182, 212, 0.1);
            box-shadow: var(--shadow-cyan);
        }
        /* ============ 板块通用 ============ */
        .section-padding {
            padding: 70px 0;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--accent-lime);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.65;
        }
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: var(--transition-base);
        }
        .glass-card:hover {
            border-color: var(--accent-lime);
            box-shadow: 0 0 18px rgba(163, 230, 53, 0.2);
            transform: translateY(-3px);
        }
        .cyber-gradient-bg {
            background: linear-gradient(180deg, rgba(6, 182, 212, 0.05) 0%, transparent 100%);
        }
        /* ============ Footer ============ */
        .site-footer {
            background: #04040A;
            border-top: 1px solid rgba(6, 182, 212, 0.15);
            padding: 50px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 10px;
            transition: var(--transition-base);
        }
        .footer-col a:hover { color: var(--accent-lime); }
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.05);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-18plus {
            display: inline-block;
            padding: 6px 16px;
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 12px;
        }
        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .hero-title { font-size: 2.6rem; }
            .main-nav { gap: 2px; }
            .main-nav .nav-link-custom { padding: 8px 12px; font-size: 0.8rem; }
        }
        @media (max-width: 768px) {
            .header-inner { padding: 0 10px; }
            .main-nav { display: none; }
            .mobile-menu-btn { display: block; }
            .hero-title { font-size: 2.2rem; }
            .hero-desc { font-size: 1rem; }
            .section-title { font-size: 1.8rem; }
            .header-actions .btn-login, .header-actions .btn-signup { padding: 8px 16px; font-size: 0.8rem; }
        }
        @media (max-width: 520px) {
            .hero-title { font-size: 1.9rem; }
            .hero-buttons { flex-direction: column; align-items: center; }
            .btn-primary-hero, .btn-outline-hero { width: 100%; text-align: center; }
        }

        /* FAB */
        .fab-cyber {
            position: fixed;
            left: 20px;
            bottom: 100px;
            z-index: 1200;
            width: 56px;
            height: 56px;
            background: rgba(7, 7, 13, 0.8);
            backdrop-filter: blur(16px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan)) 1;
            border-radius: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-lime);
            font-size: 1.5rem;
            box-shadow: 0 0 28px rgba(6, 182, 212, 0.45);
            transition: var(--transition-base);
        }
        .fab-cyber:hover {
            box-shadow: 0 0 38px rgba(163, 230, 53, 0.65);
            transform: scale(1.08);
            color: var(--accent-cyan);
        }

/* roulang page: category1 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: #0F0F1F;
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-subtle: rgba(6, 182, 212, 0.2);
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-glow: 0 0 25px rgba(163, 230, 53, 0.3);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
            --radius-card: 16px;
            --radius-btn: 30px;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --glass-bg: rgba(15, 15, 31, 0.7);
            --glass-border: rgba(6, 182, 212, 0.25);
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
        }

        a { text-decoration: none; color: inherit; transition: var(--transition-base); }
        img { max-width: 100%; height: auto; display: block; }

        .container-fluid, .container {
            max-width: 1320px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(7, 7, 13, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 10px 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--accent-lime) 0%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .main-nav .nav-link-custom {
            padding: 10px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: 30px;
            position: relative;
            display: flex;
            align-items: center;
            gap: 5px;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .main-nav .nav-link-custom:hover,
        .main-nav .nav-link-custom.active {
            color: var(--text-primary);
            background: var(--glass-bg);
            border: 1px solid var(--border-glow);
        }

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

        .btn-login {
            padding: 8px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255,255,255,0.3);
            border-radius: 30px;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .btn-login:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
        }

        .btn-signup {
            padding: 9px 24px;
            font-weight: 700;
            font-size: 0.9rem;
            color: #07070D;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border: none;
            border-radius: 30px;
            box-shadow: 0 0 15px rgba(163, 230, 53, 0.4);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .btn-signup:hover {
            box-shadow: 0 0 25px rgba(163, 230, 53, 0.65);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: 1px solid rgba(255,255,255,0.2);
            color: white;
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
            cursor: pointer;
        }

        .page-hero {
            padding: 140px 0 70px;
            position: relative;
            background: linear-gradient(180deg, #0A0A1A 0%, var(--bg-primary) 100%);
            overflow: hidden;
            text-align: left;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-6.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .page-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #FFFFFF 20%, var(--accent-pink) 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -1px;
        }

        .page-hero .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .section-block {
            padding: 70px 0;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 50px;
            max-width: 650px;
        }

        .promo-card {
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 30px;
            transition: var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .promo-card:hover {
            border-color: var(--accent-lime);
            box-shadow: var(--shadow-glow);
            transform: translateY(-5px);
        }

        .promo-icon {
            font-size: 2.5rem;
            color: var(--accent-lime);
            margin-bottom: 20px;
        }

        .promo-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--text-primary);
        }

        .promo-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            flex-grow: 1;
            margin-bottom: 20px;
        }

        .promo-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-lime);
            margin-bottom: 10px;
        }

        .btn-promo {
            display: inline-block;
            padding: 12px 30px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #07070D;
            text-align: center;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-promo:hover {
            box-shadow: var(--shadow-glow);
            transform: scale(1.02);
        }

        .step-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .step-list li {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-subtle);
        }

        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            background: var(--glass-bg);
            border: 1px solid var(--border-glow);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--accent-lime);
        }

        .step-content h4 {
            font-weight: 700;
            margin-bottom: 5px;
            color: var(--text-primary);
        }

        .step-content p {
            color: var(--text-secondary);
            margin: 0;
            font-size: 0.95rem;
        }

        .faq-item {
            background: var(--glass-bg);
            backdrop-filter: blur(8px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }

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

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
        }

        .cta-section {
            background: linear-gradient(180deg, #0F0F1F 0%, #07070D 100%);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            padding: 80px 0;
            text-align: center;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }

        .news-card {
            background: var(--glass-bg);
            backdrop-filter: blur(8px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition-base);
        }

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

        .news-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .news-body {
            padding: 20px;
        }

        .news-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .news-body p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.5;
            margin-bottom: 15px;
        }

        .news-body .read-more {
            color: var(--accent-lime);
            font-weight: 600;
            font-size: 0.9rem;
        }

        .site-footer {
            background: #050510;
            padding: 60px 0 30px;
            border-top: 1px solid var(--border-subtle);
            color: var(--text-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--text-primary);
            margin-bottom: 20px;
            font-weight: 700;
            font-size: 1.15rem;
        }

        .footer-col a {
            display: block;
            color: var(--text-secondary);
            margin-bottom: 10px;
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

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

        .footer-18plus {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: 2px solid var(--accent-pink);
            border-radius: 8px;
            font-weight: 800;
            font-size: 0.8rem;
            color: var(--accent-pink);
            margin-top: 10px;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.05);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .fab-float {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(12px);
            border-radius: 50%;
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-lime);
            cursor: pointer;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            transition: var(--transition-base);
            animation: floatBreath 3s ease-in-out infinite;
        }

        .fab-float::before {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            border-radius: 50%;
            background: linear-gradient(45deg, var(--accent-lime), var(--accent-cyan));
            z-index: -1;
            opacity: 0.6;
        }

        .fab-float:hover {
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(6, 182, 212, 0.7);
            color: #fff;
        }

        @keyframes floatBreath {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

        @media (max-width: 1024px) {
            .page-hero h1 { font-size: 2.4rem; }
            .section-title { font-size: 1.8rem; }
        }

        @media (max-width: 768px) {
            .main-nav { display: none; flex-direction: column; width: 100%; background: rgba(7,7,13,0.98); padding: 16px; border-radius: 0 0 16px 16px; position: absolute; top: 100%; left: 0; }
            .main-nav.open { display: flex; }
            .mobile-menu-btn { display: block; }
            .header-actions { gap: 8px; }
            .btn-login, .btn-signup { padding: 6px 16px; font-size: 0.8rem; }
            .page-hero { padding: 120px 0 50px; }
            .page-hero h1 { font-size: 2rem; }
            .news-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
            .btn-login { display: none; }
            .btn-signup { display: inline-block; }
        }

/* roulang page: article */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: #0F0F1F;
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-subtle: rgba(6, 182, 212, 0.2);
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-glow: 0 0 25px rgba(163, 230, 53, 0.3);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
            --radius-card: 16px;
            --radius-btn: 30px;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --glass-bg: rgba(15, 15, 31, 0.7);
            --glass-border: rgba(6, 182, 212, 0.25);
        }

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

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        .container-fluid,
        .container {
            max-width: 1320px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(7, 7, 13, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 10px 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--accent-lime) 0%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .main-nav .nav-link-custom {
            padding: 10px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: 30px;
            position: relative;
            display: flex;
            align-items: center;
            gap: 5px;
            white-space: nowrap;
        }

        .main-nav .nav-link-custom:hover,
        .main-nav .nav-link-custom.active {
            color: var(--text-primary);
            background: var(--glass-bg);
            border: 1px solid var(--border-glow);
        }

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

        .btn-login {
            padding: 8px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 30px;
            transition: var(--transition-base);
        }

        .btn-login:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
        }

        .btn-signup {
            padding: 9px 24px;
            font-weight: 700;
            font-size: 0.9rem;
            color: #07070D;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border: none;
            border-radius: 30px;
            box-shadow: 0 0 15px rgba(163, 230, 53, 0.4);
            transition: var(--transition-base);
        }

        .btn-signup:hover {
            box-shadow: 0 0 25px rgba(163, 230, 53, 0.65);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: white;
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
        }

        @media (max-width: 992px) {
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                background: rgba(7, 7, 13, 0.98);
                padding: 16px;
                border-radius: 16px;
                margin-top: 12px;
                border: 1px solid var(--border-subtle);
            }

            .main-nav.active-mobile {
                display: flex;
            }

            .mobile-menu-btn {
                display: block;
            }

            .header-actions {
                gap: 8px;
            }

            .btn-login,
            .btn-signup {
                padding: 6px 16px;
                font-size: 0.8rem;
            }
        }

        /* Article Banner */
        .article-banner {
            padding: 130px 0 60px;
            position: relative;
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
        }

        .article-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }

        .article-meta-bar {
            position: relative;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 16px;
        }

        .article-cat-tag {
            background: var(--accent-cyan);
            color: #07070D;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
        }

        .article-content-wrapper {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            margin-top: -20px;
        }

        .article-main-col {
            min-width: 0;
        }

        .article-sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }

        .article-main-col h1 {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #FFFFFF 20%, var(--accent-lime) 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .featured-image-block {
            margin-bottom: 32px;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }

        .featured-image-block img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .article-body {
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.75;
        }

        .article-body h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 32px;
            margin-bottom: 16px;
            border-left: 4px solid var(--accent-lime);
            padding-left: 16px;
        }

        .article-body h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 24px;
            margin-bottom: 12px;
        }

        .article-body p {
            margin-bottom: 18px;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 18px;
            padding-left: 24px;
        }

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

        .article-body strong {
            color: var(--accent-lime);
            font-weight: 700;
        }

        .article-body blockquote {
            background: var(--glass-bg);
            border-left: 4px solid var(--accent-cyan);
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: var(--text-primary);
            font-style: italic;
            backdrop-filter: blur(8px);
        }

        /* Sidebar */
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }

        .sidebar-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--accent-lime);
        }

        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }

        .sidebar-card ul li {
            margin-bottom: 12px;
        }

        .sidebar-card ul li a {
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: var(--transition-base);
        }

        .sidebar-card ul li a:hover {
            color: var(--accent-cyan);
            padding-left: 4px;
        }

        .sidebar-game-mini {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .sidebar-game-mini:hover {
            color: var(--accent-cyan);
        }

        .sidebar-game-mini img {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            object-fit: cover;
            border: 1px solid var(--border-subtle);
        }

        .sidebar-game-mini span {
            font-weight: 600;
            font-size: 0.9rem;
        }

        .not-found-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
        }

        .not-found-state i {
            font-size: 3rem;
            color: var(--accent-pink);
            margin-bottom: 16px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(163, 230, 53, 0.05));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-card);
            padding: 40px;
            margin: 40px 0;
            text-align: center;
        }

        .cta-section h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .btn-cta-glow {
            padding: 14px 36px;
            font-weight: 700;
            font-size: 1rem;
            color: #07070D;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border: none;
            border-radius: var(--radius-btn);
            box-shadow: 0 0 20px rgba(163, 230, 53, 0.45);
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-glow:hover {
            box-shadow: 0 0 35px rgba(163, 230, 53, 0.7);
            transform: translateY(-2px);
        }

        /* Related Games */
        .related-games-section {
            padding: 40px 0;
        }

        .related-games-section h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--text-primary);
        }

        .mini-game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
            gap: 16px;
        }

        .mini-game-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 12px;
            padding: 16px;
            text-align: center;
            transition: var(--transition-base);
        }

        .mini-game-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 18px rgba(163, 230, 53, 0.2);
            transform: translateY(-3px);
        }

        .mini-game-card img {
            width: 80px;
            height: 80px;
            border-radius: 12px;
            object-fit: cover;
            margin: 0 auto 10px;
            border: 1px solid var(--border-subtle);
        }

        .mini-game-card span {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
        }

        .author-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px;
            margin: 32px 0;
        }

        .author-card img {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid var(--accent-lime);
        }

        .author-info h5 {
            font-weight: 700;
            margin-bottom: 4px;
        }

        .author-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin: 0;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 20px;
            margin-top: 60px;
        }

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

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--accent-lime);
        }

        .footer-col a {
            display: block;
            color: var(--text-secondary);
            margin-bottom: 8px;
            font-size: 0.9rem;
        }

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

        .footer-18plus {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 2px solid var(--accent-pink);
            color: var(--accent-pink);
            font-weight: 800;
            font-size: 0.85rem;
            margin-top: 12px;
        }

        .footer-bottom {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .article-content-wrapper {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                position: static;
            }

            .article-main-col h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .article-banner {
                padding: 110px 0 40px;
            }

            .cta-section {
                padding: 24px 16px;
            }

            .author-card {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: #0F0F1F;
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-subtle: rgba(6, 182, 212, 0.2);
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-glow: 0 0 25px rgba(163, 230, 53, 0.3);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
            --radius-card: 16px;
            --radius-btn: 30px;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --glass-bg: rgba(15, 15, 31, 0.7);
            --glass-border: rgba(6, 182, 212, 0.25);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition-base); }
        img { max-width: 100%; height: auto; display: block; }
        .container-fluid, .container {
            max-width: 1320px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 16px;
            padding-right: 16px;
        }
        /* ============ NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(7, 7, 13, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 10px 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--accent-lime) 0%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav .nav-link-custom {
            padding: 10px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: 30px;
            position: relative;
            display: flex;
            align-items: center;
            gap: 5px;
            white-space: nowrap;
            border: 1px solid transparent;
            background: transparent;
        }
        .main-nav .nav-link-custom:hover,
        .main-nav .nav-link-custom.active {
            color: var(--text-primary);
            background: var(--glass-bg);
            border: 1px solid var(--border-glow);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-login {
            padding: 8px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255,255,255,0.3);
            border-radius: 30px;
            transition: var(--transition-base);
        }
        .btn-login:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
        }
        .btn-signup {
            padding: 9px 24px;
            font-weight: 700;
            font-size: 0.9rem;
            color: #07070D;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border: none;
            border-radius: 30px;
            box-shadow: 0 0 15px rgba(163, 230, 53, 0.4);
            transition: var(--transition-base);
        }
        .btn-signup:hover {
            box-shadow: 0 0 25px rgba(163, 230, 53, 0.65);
            transform: translateY(-1px);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: 1px solid rgba(255,255,255,0.2);
            color: white;
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
        }
        /* ============ PAGE BANNER ============ */
        .page-banner {
            padding: 140px 0 60px;
            position: relative;
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            overflow: hidden;
            border-bottom: 1px solid var(--border-subtle);
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-4.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
            margin: 0 auto;
            text-align: center;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--glass-bg);
            border: 1px solid var(--border-glow);
            backdrop-filter: blur(8px);
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--accent-lime);
            margin-bottom: 26px;
        }
        .banner-title {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #FFFFFF 20%, var(--accent-cyan) 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.8px;
        }
        .banner-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 0;
            line-height: 1.7;
        }
        /* ============ TIP CARDS GRID ============ */
        .tips-section {
            padding: 70px 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.5px;
            color: var(--accent-lime);
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 700px;
            margin-bottom: 44px;
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .tip-card {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 30px 26px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .tip-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-cyan);
            transform: translateY(-4px);
        }
        .tip-icon {
            font-size: 2.5rem;
            color: var(--accent-cyan);
            margin-bottom: 18px;
        }
        .tip-card h4 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .tip-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 0;
        }
        /* ============ COMPARISON TABLE ============ */
        .compare-section {
            padding: 70px 0;
            background: var(--bg-secondary);
        }
        .compare-table-wrapper {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            margin-top: 32px;
        }
        .compare-table {
            width: 100%;
            min-width: 700px;
            border-collapse: collapse;
            background: var(--bg-card);
            border-radius: var(--radius-card);
            overflow: hidden;
        }
        .compare-table th {
            background: rgba(6, 182, 212, 0.15);
            color: var(--accent-lime);
            font-weight: 700;
            padding: 16px 20px;
            text-align: left;
            font-size: 0.95rem;
        }
        .compare-table td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        .compare-table tr:hover td {
            background: rgba(255,255,255,0.03);
        }
        /* ============ SCENARIO SECTION ============ */
        .scenario-section {
            padding: 70px 0;
        }
        .scenario-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            margin-top: 32px;
        }
        .scenario-item {
            background: var(--glass-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px 30px;
            transition: var(--transition-base);
        }
        .scenario-item:hover {
            border-color: var(--accent-lime);
            box-shadow: var(--shadow-glow);
        }
        .scenario-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #07070D;
            font-weight: 800;
            font-size: 1.1rem;
            margin-right: 16px;
            flex-shrink: 0;
        }
        .scenario-item h5 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .scenario-item p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin: 0;
        }
        /* ============ CTA STRIP ============ */
        .cta-strip {
            padding: 50px 0;
            text-align: center;
        }
        .cta-card {
            background: linear-gradient(135deg, rgba(6,182,212,0.12) 0%, rgba(163,230,53,0.08) 100%);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-card);
            padding: 50px 30px;
            backdrop-filter: blur(10px);
        }
        .cta-card h3 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-card p {
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .btn-glow-solid {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 40px;
            font-weight: 700;
            font-size: 1rem;
            color: #07070D;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border: none;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-glow);
            transition: var(--transition-base);
        }
        .btn-glow-solid:hover {
            box-shadow: 0 0 35px rgba(163, 230, 53, 0.55);
            transform: translateY(-2px);
            color: #07070D;
        }
        /* ============ NEWS LIST ============ */
        .news-section {
            padding: 70px 0;
            background: var(--bg-secondary);
        }
        .news-list-vertical {
            display: flex;
            flex-direction: column;
            gap: 18px;
            margin-top: 30px;
        }
        .news-item-row {
            background: var(--glass-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            transition: var(--transition-base);
        }
        .news-item-row:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-cyan);
        }
        .news-item-row h5 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .news-item-row .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        /* ============ FOOTER ============ */
        .site-footer {
            background: #0A0A16;
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 24px;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-col h4 {
            color: var(--text-primary);
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 1.05rem;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            margin-bottom: 10px;
            font-size: 0.9rem;
        }
        .footer-col a:hover {
            color: var(--accent-lime);
        }
        .footer-18plus {
            display: inline-block;
            background: var(--accent-pink);
            color: #fff;
            font-weight: 800;
            padding: 4px 12px;
            border-radius: 6px;
            font-size: 0.8rem;
            margin-top: 10px;
            letter-spacing: 0.5px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 22px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .banner-title { font-size: 2.2rem; }
            .section-title { font-size: 1.9rem; }
            .tips-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
        }
        @media (max-width: 768px) {
            .main-nav { display: none; flex-direction: column; width: 100%; background: rgba(7,7,13,0.95); padding: 16px; border-radius: 12px; margin-top: 12px; }
            .main-nav.show { display: flex; }
            .mobile-menu-btn { display: block; }
            .header-inner { flex-wrap: wrap; }
            .header-actions { gap: 8px; }
            .btn-login { padding: 6px 16px; font-size: 0.8rem; }
            .btn-signup { padding: 7px 18px; font-size: 0.8rem; }
            .banner-title { font-size: 1.8rem; }
            .section-title { font-size: 1.6rem; }
            .page-banner { padding: 120px 0 50px; }
        }
        @media (max-width: 520px) {
            .logo-text { font-size: 1.1rem; }
            .banner-title { font-size: 1.5rem; }
            .banner-desc { font-size: 0.9rem; }
            .tips-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: #0F0F1F;
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-subtle: rgba(6, 182, 212, 0.2);
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-glow: 0 0 25px rgba(163, 230, 53, 0.3);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
            --radius-card: 16px;
            --radius-btn: 30px;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --glass-bg: rgba(15, 15, 31, 0.7);
            --glass-border: rgba(6, 182, 212, 0.25);
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition-base); }
        img { max-width: 100%; height: auto; display: block; }
        .container-fluid, .container {
            max-width: 1320px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        /* ============ 导航 ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(7, 7, 13, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 10px 0;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--accent-lime) 0%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav .nav-link-custom {
            padding: 10px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: 30px;
            position: relative;
            display: flex;
            align-items: center;
            gap: 5px;
            white-space: nowrap;
        }
        .main-nav .nav-link-custom:hover,
        .main-nav .nav-link-custom.active {
            color: var(--text-primary);
            background: var(--glass-bg);
            border: 1px solid var(--border-glow);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-login {
            padding: 8px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255,255,255,0.3);
            border-radius: 30px;
            transition: var(--transition-base);
        }
        .btn-login:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
        }
        .btn-signup {
            padding: 9px 24px;
            font-weight: 700;
            font-size: 0.9rem;
            color: #07070D;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border: none;
            border-radius: 30px;
            box-shadow: 0 0 15px rgba(163, 230, 53, 0.4);
            transition: var(--transition-base);
        }
        .btn-signup:hover {
            box-shadow: 0 0 25px rgba(163, 230, 53, 0.65);
            transform: translateY(-1px);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: 1px solid rgba(255,255,255,0.2);
            color: white;
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
        }

        /* ============ 通用板块 ============ */
        .section-padding {
            padding: 80px 0;
        }
        .section-header {
            margin-bottom: 50px;
        }
        .section-header h2 {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .section-header .subtitle {
            color: var(--text-secondary);
            font-size: 1.1rem;
        }
        .gradient-text {
            background: linear-gradient(135deg, var(--accent-lime) 0%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .glass-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: var(--transition-base);
        }
        .glass-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-cyan);
            transform: translateY(-3px);
        }
        .btn-primary-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 36px;
            font-weight: 700;
            font-size: 1rem;
            color: #07070D;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border: none;
            border-radius: var(--radius-btn);
            box-shadow: 0 0 20px rgba(163, 230, 53, 0.35);
            transition: var(--transition-base);
            cursor: pointer;
        }
        .btn-primary-glow:hover {
            box-shadow: 0 0 35px rgba(163, 230, 53, 0.6);
            transform: translateY(-2px);
            color: #07070D;
        }
        .btn-outline-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 34px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-btn);
            transition: var(--transition-base);
            cursor: pointer;
        }
        .btn-outline-glow:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
            box-shadow: var(--shadow-glow);
        }

        /* ============ 分类Hero ============ */
        .category-hero {
            padding: 160px 0 90px;
            position: relative;
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-4.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }
        .category-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .category-hero-text h1 {
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -0.8px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #FFFFFF 20%, var(--accent-lime) 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero-text p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .category-hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .live-broadcast-preview {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            width: 100%;
            max-width: 500px;
        }
        .live-broadcast-preview img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .broadcast-overlay {
            padding: 20px;
            text-align: center;
        }
        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-pink);
            color: white;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 15px;
            animation: pulse-live 2s infinite;
        }
        @keyframes pulse-live {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.6; }
        }
        .countdown-timer {
            display: flex;
            gap: 15px;
            justify-content: center;
            margin: 15px 0;
        }
        .time-block {
            background: var(--glass-bg);
            border: 1px solid var(--border-glow);
            border-radius: 12px;
            padding: 12px 16px;
            min-width: 60px;
            text-align: center;
        }
        .time-block span {
            display: block;
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-lime);
            line-height: 1;
        }
        .time-block small {
            display: block;
            font-size: 0.7rem;
            color: var(--text-muted);
            margin-top: 4px;
            text-transform: uppercase;
        }
        .remind-btn {
            padding: 10px 28px;
            font-weight: 700;
            font-size: 0.95rem;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-pink));
            border: none;
            border-radius: 30px;
            color: white;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(6, 182, 212, 0.4);
            transition: var(--transition-base);
        }
        .remind-btn:hover {
            box-shadow: 0 0 25px rgba(244, 63, 94, 0.5);
            transform: translateY(-2px);
        }

        /* ============ Mẹo/Chiến thuật板块 ============ */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .tip-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 30px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .tip-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-lime), var(--accent-cyan));
            border-radius: 0 4px 4px 0;
        }
        .tip-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-cyan);
            transform: translateX(4px);
        }
        .tip-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-lime);
            opacity: 0.7;
            margin-bottom: 10px;
        }
        .tip-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .tip-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .tip-icon {
            font-size: 2.5rem;
            color: var(--accent-cyan);
            margin-bottom: 15px;
        }

        /* ============ 场景/适用板块 ============ */
        .scenario-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .scenario-item {
            display: flex;
            gap: 24px;
            padding: 24px;
            background: var(--glass-bg);
            border-left: 3px solid var(--accent-lime);
            border-radius: 0 12px 12px 0;
            transition: var(--transition-base);
        }
        .scenario-item:hover {
            background: rgba(15, 15, 31, 0.9);
            border-left-color: var(--accent-cyan);
        }
        .scenario-icon {
            font-size: 2rem;
            color: var(--accent-lime);
            flex-shrink: 0;
        }
        .scenario-content h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .scenario-content p {
            color: var(--text-secondary);
        }

        /* ============ Checklist板块 ============ */
        .checklist-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }
        .check-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 18px;
            background: var(--bg-card);
            border-radius: 12px;
            border: 1px solid transparent;
            transition: var(--transition-base);
        }
        .check-item:hover {
            border-color: var(--border-glow);
            background: var(--glass-bg);
        }
        .check-icon {
            color: var(--accent-lime);
            font-size: 1.3rem;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .check-item span {
            font-size: 0.95rem;
            color: var(--text-secondary);
        }

        /* ============ 资讯列表 ============ */
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: var(--transition-base);
        }
        .news-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-cyan);
            transform: translateY(-4px);
        }
        .news-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .news-body {
            padding: 20px;
        }
        .news-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .news-body h3 a { color: var(--text-primary); }
        .news-body h3 a:hover { color: var(--accent-lime); }
        .news-excerpt {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        /* ============ FAQ ============ */
        .faq-list .accordion-button {
            background: var(--glass-bg);
            color: var(--text-primary);
            font-weight: 600;
            border: 1px solid var(--border-subtle);
        }
        .faq-list .accordion-button:not(.collapsed) {
            background: rgba(6, 182, 212, 0.1);
            color: var(--accent-cyan);
            border-color: var(--accent-cyan);
        }
        .faq-list .accordion-body {
            background: var(--bg-card);
            color: var(--text-secondary);
            border-top: 1px solid var(--border-subtle);
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 60px 0 30px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 8px;
        }
        .footer-col a:hover { color: var(--accent-lime); }
        .footer-18plus {
            display: inline-block;
            background: var(--accent-pink);
            color: white;
            font-weight: 800;
            padding: 4px 16px;
            border-radius: 20px;
            margin-top: 12px;
            font-size: 0.9rem;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 24px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .fab-container {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 50;
        }
        .fab-btn {
            width: 56px;
            height: 56px;
            background: rgba(7, 7, 13, 0.85);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            border-image: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan)) 1;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-lime);
            font-size: 1.5rem;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45);
            cursor: pointer;
            transition: var(--transition-base);
            animation: floatFab 3s ease-in-out infinite;
            text-decoration: none;
        }
        @keyframes floatFab {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        .fab-btn:hover {
            box-shadow: 0 0 35px rgba(6, 182, 212, 0.75);
            transform: scale(1.1);
            color: white;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .category-hero-visual {
                order: -1;
            }
            .category-hero-text h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(7, 7, 13, 0.98);
                padding: 20px;
                border-top: 1px solid var(--border-subtle);
            }
            .main-nav.show {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .tip-card {
                padding: 20px;
            }
            .countdown-timer {
                flex-wrap: wrap;
            }
            .time-block {
                min-width: 50px;
                padding: 8px 12px;
            }
            .time-block span {
                font-size: 1.5rem;
            }
            .category-hero-text h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 520px) {
            .header-actions {
                gap: 8px;
            }
            .btn-login, .btn-signup {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .tips-grid, .news-list, .checklist-grid {
                grid-template-columns: 1fr;
            }
            .fab-btn {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #07070D;
            --bg-secondary: #0E0E1E;
            --bg-card: #0F0F1F;
            --accent-cyan: #06B6D4;
            --accent-lime: #A3E635;
            --accent-pink: #F43F5E;
            --text-primary: #FFFFFF;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-subtle: rgba(6, 182, 212, 0.2);
            --border-glow: rgba(163, 230, 53, 0.3);
            --shadow-glow: 0 0 25px rgba(163, 230, 53, 0.3);
            --shadow-cyan: 0 0 20px rgba(6, 182, 212, 0.4);
            --shadow-pink: 0 0 15px rgba(244, 63, 94, 0.5);
            --radius-card: 16px;
            --radius-btn: 30px;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --glass-bg: rgba(15, 15, 31, 0.7);
            --glass-border: rgba(6, 182, 212, 0.25);
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            margin: 0;
        }

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

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

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        /* ============ NAVIGATION ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(7, 7, 13, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 10px 0;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--accent-lime) 0%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .main-nav .nav-link-custom {
            padding: 10px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: 30px;
            position: relative;
            display: flex;
            align-items: center;
            gap: 5px;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .main-nav .nav-link-custom:hover,
        .main-nav .nav-link-custom.active {
            color: var(--text-primary);
            background: var(--glass-bg);
            border: 1px solid var(--border-glow);
        }

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

        .btn-login {
            padding: 8px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 30px;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .btn-login:hover {
            border-color: var(--accent-lime);
            color: var(--accent-lime);
        }

        .btn-signup {
            padding: 9px 24px;
            font-weight: 700;
            font-size: 0.9rem;
            color: #07070D;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border: none;
            border-radius: 30px;
            box-shadow: 0 0 15px rgba(163, 230, 53, 0.4);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .btn-signup:hover {
            box-shadow: 0 0 25px rgba(163, 230, 53, 0.65);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: white;
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
            cursor: pointer;
        }

        /* ============ CATEGORY HERO ============ */
        .category-hero {
            padding: 140px 0 70px;
            position: relative;
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-4.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }

        .hero-content-cat {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-badge-cat {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--glass-bg);
            border: 1px solid var(--border-glow);
            backdrop-filter: blur(8px);
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent-lime);
            margin-bottom: 28px;
        }

        .hero-title-cat {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #FFFFFF 20%, var(--accent-lime) 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -1px;
            line-height: 1.2;
        }

        .hero-desc-cat {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 650px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ============ MAIN CONTENT ============ */
        .promo-grid-section {
            padding: 60px 0;
            background: var(--bg-primary);
        }

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

        .section-subtitle {
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--accent-lime);
            margin-bottom: 10px;
        }

        .section-title-left {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 15px;
            line-height: 1.3;
        }

        .promo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .promo-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition-base);
            position: relative;
        }

        .promo-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-cyan);
            border-color: rgba(163, 230, 53, 0.5);
        }

        .promo-card-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .promo-card-img::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 50%;
            background: linear-gradient(to top, var(--bg-card), transparent);
        }

        .promo-card-tag {
            position: absolute;
            top: 15px;
            left: 15px;
            background: linear-gradient(135deg, var(--accent-pink), #DC2626);
            color: white;
            padding: 6px 16px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 1px;
            z-index: 1;
        }

        .promo-card-body {
            padding: 24px;
        }

        .promo-card-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .promo-card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .promo-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 15px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .promo-card-btn {
            padding: 8px 18px;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #07070D;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.85rem;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .promo-card-btn:hover {
            box-shadow: 0 0 18px rgba(163, 230, 53, 0.5);
            color: #07070D;
        }

        /* HOW IT WORKS */
        .how-section {
            padding: 70px 0;
            background: var(--bg-secondary);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .process-step-number {
            width: 55px;
            height: 55px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.5rem;
            color: #07070D;
            margin: 0 auto 20px;
            box-shadow: var(--shadow-cyan);
        }

        .process-step h4 {
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .process-step p {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        /* BENEFITS */
        .benefits-section {
            padding: 70px 0;
            background: var(--bg-primary);
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 35px;
        }

        .benefit-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: var(--transition-base);
        }

        .benefit-item:hover {
            border-color: var(--accent-lime);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }

        .benefit-icon {
            font-size: 2rem;
            color: var(--accent-cyan);
            margin-bottom: 15px;
        }

        .benefit-item h4 {
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .benefit-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* SCENARIO 2-COL */
        .scenario-section {
            padding: 70px 0;
            background: var(--bg-secondary);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            margin-top: 40px;
        }

        .scenario-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }

        .scenario-list {
            list-style: none;
            padding: 0;
        }

        .scenario-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }

        .scenario-list li i {
            color: var(--accent-lime);
            margin-top: 3px;
        }

        /* FAQ */
        .faq-section {
            padding: 70px 0;
            background: var(--bg-primary);
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }

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

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            transition: var(--transition-base);
        }

        .faq-question i {
            transition: transform 0.3s;
        }

        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }

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

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        /* CTA */
        .cta-section {
            padding: 70px 0;
            background: var(--bg-secondary);
            text-align: center;
        }

        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 15px;
            color: var(--text-primary);
        }

        .cta-desc {
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 28px;
        }

        .btn-glow {
            padding: 14px 40px;
            font-weight: 800;
            font-size: 1rem;
            color: #07070D;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border: none;
            border-radius: 30px;
            box-shadow: var(--shadow-glow);
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-glow:hover {
            box-shadow: 0 0 30px rgba(163, 230, 53, 0.7);
            transform: translateY(-2px);
            color: #07070D;
        }

        /* FOOTER */
        .site-footer {
            background: #09090F;
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
        }

        .footer-col h4 {
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--text-primary);
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            padding: 6px 0;
            font-size: 0.9rem;
        }

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

        .footer-18plus {
            display: inline-block;
            background: var(--accent-pink);
            color: white;
            padding: 4px 12px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 0.8rem;
            margin-top: 10px;
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: var(--text-muted);
            text-align: center;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 16px;
            bottom: 80px;
            z-index: 1100;
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 50%;
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.45), 0 6px 25px rgba(163, 230, 53, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #07070D;
            font-size: 1.4rem;
            font-weight: 800;
            transition: var(--transition-base);
            animation: floatBreath 3s infinite alternate;
        }

        @keyframes floatBreath {
            0% { transform: translateY(0); }
            100% { transform: translateY(-6px); }
        }

        .fab-floating:hover {
            box-shadow: 0 0 30px rgba(6, 182, 212, 0.7);
            transform: scale(1.08);
            color: #07070D;
        }

        .fab-badge {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--accent-pink);
            border: 2px solid white;
            border-radius: 50%;
            animation: pulseDot 1.5s infinite;
        }

        @keyframes pulseDot {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.3); opacity: 0.7; }
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .hero-title-cat {
                font-size: 2.5rem;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .desktop-only {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(7, 7, 13, 0.96);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 16px;
                border-radius: 0 0 16px 16px;
                border: 1px solid var(--border-subtle);
                margin-top: 8px;
            }
            .main-nav.mobile-open {
                display: flex;
            }
            .hero-title-cat {
                font-size: 2rem;
            }
            .promo-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .benefits-grid {
                grid-template-columns: 1fr;
            }
            .header-actions .btn-login,
            .header-actions .btn-signup {
                padding: 6px 16px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title-cat {
                font-size: 1.6rem;
            }
            .section-title-left {
                font-size: 1.8rem;
            }
            .fab-floating {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 10px;
                bottom: 60px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}