/* roulang page: index */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141B23;
            --bg-card: #1A2330;
            --bg-card-hover: #1F2B3B;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --accent-gold: #FFD700;
            --accent-gold-dark: #CCAA00;
            --accent-red: #D32F2F;
            --accent-green: #00E676;
            --accent-blue: #2979FF;
            --accent-yellow: #FFD600;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-gold: rgba(255, 215, 0, 0.30);
            --border-accent: rgba(41, 121, 255, 0.50);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.40);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-blue: 0 0 18px rgba(41, 121, 255, 0.30);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-xl: 2.6rem;
            --font-lg: 1.75rem;
            --font-md: 1.15rem;
            --font-sm: 0.95rem;
            --font-xs: 0.85rem;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1280px;
            --navbar-height: 72px;
        }

        * {
            box-sizing: border-box;
        }

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

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

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

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

        /* Navigation */
        .navbar-main {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0;
            height: var(--navbar-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth);
        }

        .navbar-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--accent-gold);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: var(--font-sm);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .nav-cta-group {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .btn-nav-login {
            color: var(--text-primary);
            font-weight: 600;
            font-size: var(--font-sm);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            background: transparent;
            transition: all var(--transition-fast);
        }

        .btn-nav-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .btn-nav-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #0A0E14;
            font-weight: 700;
            font-size: var(--font-sm);
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.25);
        }

        .btn-nav-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.40);
            color: #0A0E14;
        }

        .navbar-toggler {
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.25);
        }

        /* Hero Section */
        .hero-section {
            padding: 140px 0 80px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(10, 14, 20, 0.95) 0%, rgba(20, 27, 35, 0.98) 100%), url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
            background-blend-mode: overlay;
        }

        .hero-stage {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }

        .hero-visual {
            flex: 1 1 480px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-visual-wrapper {
            position: relative;
            background: var(--bg-card);
            border: 2px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 16px;
            box-shadow: var(--shadow-card), var(--shadow-gold);
            max-width: 520px;
            width: 100%;
        }

        .hero-visual-wrapper img {
            border-radius: var(--radius-md);
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .hero-visual-badge {
            position: absolute;
            top: -14px;
            right: -14px;
            background: var(--accent-red);
            color: white;
            font-weight: 700;
            font-size: 0.8rem;
            padding: 6px 14px;
            border-radius: 20px;
            box-shadow: 0 4px 14px rgba(211, 47, 47, 0.5);
            letter-spacing: 0.4px;
        }

        .hero-content {
            flex: 1 1 420px;
        }

        .hero-content h1 {
            font-size: var(--font-xl);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .hero-content h1 span {
            color: var(--accent-gold);
        }

        .hero-content p {
            font-size: var(--font-md);
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 580px;
        }

        .hero-cta-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-primary-gold {
            background: linear-gradient(135deg, #FFD700, #E6B800);
            color: #0A0E14;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            border: none;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 18px rgba(255, 215, 0, 0.35);
            letter-spacing: 0.2px;
        }

        .btn-primary-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.50);
        }

        .btn-outline-light-custom {
            border: 2px solid var(--border-subtle);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            background: transparent;
            transition: all var(--transition-smooth);
        }

        .btn-outline-light-custom:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .hero-stats {
            display: flex;
            gap: 24px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            text-align: left;
        }

        .hero-stat-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-gold);
        }

        .hero-stat-label {
            font-size: var(--font-xs);
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.3px;
        }

        /* Section Common */
        .section-block {
            padding: 70px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
            position: relative;
            display: inline-block;
        }

        .section-title.accent-line::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 48px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: 3px;
        }

        .section-subtitle {
            font-size: var(--font-md);
            color: var(--text-muted);
            margin-bottom: 36px;
            max-width: 700px;
        }

        /* Core Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-smooth);
            position: relative;
        }

        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            background: rgba(255, 215, 0, 0.10);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--accent-gold);
            font-size: 1.5rem;
            transition: background var(--transition-fast);
        }

        .feature-card:hover .feature-icon {
            background: rgba(255, 215, 0, 0.20);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: var(--font-sm);
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* Topic Grid */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .topic-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            border: 1px solid var(--border-subtle);
        }

        .topic-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card);
            border-color: var(--border-gold);
        }

        .topic-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .topic-card-body {
            padding: 18px 16px;
        }

        .topic-card-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .topic-card-body p {
            font-size: var(--font-xs);
            color: var(--text-muted);
            margin: 0;
        }

        /* News Section */
        .news-layout {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .news-list {
            flex: 1 1 600px;
        }

        .news-item {
            padding: 16px 0;
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: all var(--transition-fast);
        }

        .news-item:hover {
            background: rgba(255, 255, 255, 0.02);
            padding-left: 8px;
            border-radius: var(--radius-sm);
        }

        .news-item-icon {
            color: var(--accent-gold);
            font-size: 0.7rem;
            margin-top: 5px;
        }

        .news-item-content h5 {
            font-size: var(--font-md);
            font-weight: 600;
            margin-bottom: 4px;
        }

        .news-item-content h5 a {
            color: var(--text-primary);
        }

        .news-item-content h5 a:hover {
            color: var(--accent-gold);
        }

        .news-meta {
            font-size: var(--font-xs);
            color: var(--text-muted);
        }

        .news-sidebar {
            flex: 0 0 280px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 20px;
            margin-bottom: 20px;
        }

        .sidebar-card h5 {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 12px;
        }

        .sidebar-link {
            display: block;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            font-size: var(--font-sm);
            transition: color var(--transition-fast);
        }

        .sidebar-link:hover {
            color: var(--accent-gold);
        }

        /* Tiered Offers */
        .offer-tiers {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .tier-card {
            background: var(--bg-card);
            border: 2px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 28px 20px;
            text-align: left;
            transition: all var(--transition-smooth);
            position: relative;
        }

        .tier-card.featured {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }

        .tier-badge {
            position: absolute;
            top: -12px;
            right: 16px;
            background: var(--accent-red);
            color: white;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 12px;
            text-transform: uppercase;
        }

        .tier-card h4 {
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 8px;
        }

        .tier-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-gold);
        }

        .tier-desc {
            font-size: var(--font-sm);
            color: var(--text-muted);
            margin: 10px 0;
        }

        .btn-tier {
            display: block;
            width: 100%;
            padding: 12px;
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            font-weight: 700;
            border-radius: var(--radius-md);
            text-align: center;
            transition: all var(--transition-fast);
            margin-top: 12px;
        }

        .btn-tier:hover {
            background: var(--accent-gold);
            color: #0A0E14;
        }

        /* Trust Bar */
        .trust-bar {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            padding: 36px 0;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: var(--font-sm);
            color: var(--text-secondary);
            font-weight: 500;
        }

        .trust-item i {
            color: var(--accent-gold);
            font-size: 1.4rem;
        }

        .trust-number {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--text-primary);
        }

        /* FAQ */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            margin-bottom: 14px;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .faq-answer {
            font-size: var(--font-sm);
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* Testimonials */
        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 20px;
            transition: all var(--transition-smooth);
        }

        .testimonial-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }

        .testimonial-text {
            font-style: italic;
            color: var(--text-secondary);
            margin-bottom: 12px;
            font-size: var(--font-sm);
        }

        .testimonial-author {
            font-weight: 700;
            color: var(--accent-gold);
            font-size: var(--font-xs);
        }

        /* Expert Insights */
        .insight-card {
            background: var(--bg-card);
            border-left: 4px solid var(--accent-gold);
            padding: 20px 24px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-bottom: 16px;
        }

        .insight-card blockquote {
            font-size: var(--font-md);
            color: var(--text-secondary);
            margin: 0 0 8px 0;
            font-style: italic;
            line-height: 1.7;
        }

        .insight-author {
            font-size: var(--font-xs);
            color: var(--accent-gold);
            font-weight: 600;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1A2330 0%, #0D1520 100%);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            text-align: center;
            margin: 40px 0;
        }

        .cta-section h2 {
            font-weight: 800;
            font-size: 2rem;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 24px auto;
            font-size: var(--font-md);
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 16px;
            bottom: 80px;
            z-index: 999;
            width: 56px;
            height: 56px;
            background: var(--bg-card);
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.5rem;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            cursor: pointer;
            animation: floatBreath 3s infinite ease-in-out;
        }

        .fab-floating:hover {
            transform: scale(1.15);
            box-shadow: 0 4px 28px rgba(255, 215, 0, 0.55);
        }

        @keyframes floatBreath {
            0%, 100% {
                opacity: 0.7;
            }
            50% {
                opacity: 1;
            }
        }

        .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid var(--bg-card);
        }

        /* Footer */
        .footer-main {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 28px;
            margin-top: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
        }

        .footer-col h5 {
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: var(--font-sm);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            margin-top: 28px;
            border-top: 1px solid var(--border-subtle);
            color: var(--text-muted);
            font-size: var(--font-xs);
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 215, 0, 0.08);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--accent-gold);
            margin-right: 8px;
            margin-top: 8px;
        }

        @media (max-width: 1024px) {
            .hero-stage {
                flex-direction: column;
                gap: 32px;
            }

            .hero-content h1 {
                font-size: 2rem;
            }

            .hero-visual-wrapper {
                max-width: 400px;
            }
        }

        @media (max-width: 768px) {
            .navbar-nav {
                background: rgba(10, 14, 20, 0.98);
                padding: 12px;
                border-radius: var(--radius-md);
            }

            .hero-section {
                padding: 120px 0 50px;
            }

            .hero-content h1 {
                font-size: 1.7rem;
            }

            .news-layout {
                flex-direction: column;
            }

            .news-sidebar {
                flex: 1 1 auto;
            }

            .trust-bar {
                gap: 20px;
                justify-content: flex-start;
            }
        }

        @media (max-width: 520px) {
            .navbar-brand {
                font-size: 1rem;
            }

            .hero-content h1 {
                font-size: 1.5rem;
            }

            .hero-cta-row {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-primary-gold, .btn-outline-light-custom {
                width: 100%;
                text-align: center;
            }

            .fab-floating {
                left: 10px;
                bottom: 70px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141B23;
            --bg-card: #1A2330;
            --bg-card-hover: #1F2B3B;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --accent-gold: #FFD700;
            --accent-gold-dark: #CCAA00;
            --accent-red: #D32F2F;
            --accent-green: #00E676;
            --accent-blue: #2979FF;
            --accent-yellow: #FFD600;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-gold: rgba(255, 215, 0, 0.30);
            --border-accent: rgba(41, 121, 255, 0.50);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.40);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-blue: 0 0 18px rgba(41, 121, 255, 0.30);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-xl: 2.6rem;
            --font-lg: 1.75rem;
            --font-md: 1.15rem;
            --font-sm: 0.95rem;
            --font-xs: 0.85rem;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1280px;
            --navbar-height: 72px;
        }

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

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

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

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

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

        /* Navigation */
        .navbar-main {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0;
            height: var(--navbar-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth);
        }

        .navbar-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--accent-gold);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: var(--font-sm);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .nav-cta-group {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .btn-nav-login {
            color: var(--text-primary);
            font-weight: 600;
            font-size: var(--font-sm);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            background: transparent;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .btn-nav-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .btn-nav-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #0A0E14;
            font-weight: 700;
            font-size: var(--font-sm);
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.25);
            cursor: pointer;
        }

        .btn-nav-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.40);
            color: #0A0E14;
        }

        .navbar-toggler {
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            padding: 6px 10px;
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.25);
        }

        .navbar-toggler i {
            font-size: 1.3rem;
            color: var(--text-secondary);
        }

        /* Article Container */
        .article-wrapper {
            padding: 120px 0 80px;
            min-height: 100vh;
        }

        .article-container {
            max-width: 880px;
            margin: 0 auto;
        }

        .article-hero {
            position: relative;
            margin-bottom: 48px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
        }

        .article-hero-image {
            width: 100%;
            height: 380px;
            object-fit: cover;
            display: block;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 20px;
            color: var(--text-muted);
            font-size: var(--font-xs);
        }

        .article-meta .badge-category {
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            padding: 6px 14px;
            border-radius: 24px;
            font-weight: 600;
            font-size: var(--font-xs);
            border: 1px solid var(--border-gold);
        }

        .article-meta .date-divider {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent-gold);
            opacity: 0.6;
        }

        .article-content {
            color: var(--text-secondary);
            font-size: var(--font-md);
            line-height: 1.8;
            word-break: break-word;
        }

        .article-content h1 {
            font-size: var(--font-xl);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }

        .article-content h2 {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--accent-gold);
            margin-top: 40px;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-gold);
        }

        .article-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 32px;
            margin-bottom: 12px;
        }

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

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

        .article-content a {
            color: var(--accent-blue);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 20px;
        }

        .article-content li {
            margin-bottom: 8px;
            color: var(--text-secondary);
        }

        .article-content blockquote {
            margin: 32px 0;
            padding: 20px 28px;
            background: var(--bg-card);
            border-left: 4px solid var(--accent-gold);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-secondary);
            font-style: italic;
            font-size: var(--font-md);
        }

        .article-content img {
            border-radius: var(--radius-lg);
            margin: 28px 0;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 28px 0;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }

        .article-content th {
            background: var(--bg-card-hover);
            color: var(--accent-gold);
            font-weight: 700;
            padding: 14px 16px;
            text-align: left;
            font-size: var(--font-sm);
        }

        .article-content td {
            padding: 12px 16px;
            border-top: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            font-size: var(--font-sm);
        }

        /* Not Found State */
        .not-found-block {
            text-align: center;
            padding: 100px 24px;
            background: var(--bg-secondary);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-subtle);
        }

        .not-found-block .icon-404 {
            font-size: 5rem;
            color: var(--accent-gold);
            margin-bottom: 24px;
            opacity: 0.7;
        }

        .not-found-block h2 {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .not-found-block p {
            color: var(--text-muted);
            margin-bottom: 32px;
            font-size: var(--font-md);
        }

        .btn-back-home {
            display: inline-block;
            padding: 12px 32px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #0A0E14;
            font-weight: 700;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-gold);
        }

        .btn-back-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.30);
            color: #0A0E14;
        }

        .btn-back-home i {
            margin-right: 8px;
        }

        /* Related Posts */
        .related-posts {
            margin-top: 64px;
            padding-top: 48px;
            border-top: 1px solid var(--border-subtle);
        }

        .related-posts h3 {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 28px;
            position: relative;
            padding-bottom: 12px;
        }

        .related-posts h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .related-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
            background: var(--bg-card-hover);
        }

        .related-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .related-card-body {
            padding: 16px 18px;
        }

        .related-card-body h4 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-body .date-text {
            font-size: var(--font-xs);
            color: var(--text-muted);
        }

        /* CTA Banner */
        .cta-inline-banner {
            margin: 56px 0 32px;
            padding: 40px 36px;
            background: linear-gradient(135deg, var(--bg-card-hover), var(--bg-secondary));
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-gold);
        }

        .cta-inline-banner .cta-text h4 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .cta-inline-banner .cta-text p {
            color: var(--text-muted);
            margin: 0;
            font-size: var(--font-sm);
        }

        .btn-cta-glow {
            display: inline-block;
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #0A0E14;
            font-weight: 700;
            font-size: var(--font-md);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            border: none;
        }

        .btn-cta-glow:hover {
            transform: scale(1.04);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.50);
            color: #0A0E14;
        }

        /* Footer */
        .footer-main {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 56px 0 32px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h5 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 14px;
            letter-spacing: 0.4px;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: var(--font-xs);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-subtle);
            color: var(--text-muted);
            font-size: var(--font-xs);
        }

        .footer-badge {
            display: inline-block;
            margin: 0 6px;
            padding: 4px 12px;
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            border-radius: 20px;
            font-weight: 600;
            font-size: var(--font-xs);
        }

        .footer-badge i {
            margin-right: 4px;
        }

        /* Left FAB */
        .fab-left {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 1040;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 2px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.5rem;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.20);
            transition: all var(--transition-smooth);
            opacity: 0.7;
            animation: float-fab 3s ease-in-out infinite;
            cursor: pointer;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.40);
        }

        @keyframes float-fab {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                position: absolute;
                top: var(--navbar-height);
                left: 0;
                width: 100%;
                background: rgba(10, 14, 20, 0.96);
                backdrop-filter: blur(20px);
                padding: 20px;
                border-bottom: 1px solid var(--border-subtle);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }

            .nav-cta-group {
                margin-top: 12px;
                justify-content: center;
            }

            .article-hero-image {
                height: 240px;
            }

            .article-container {
                padding: 0 8px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

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

            .fab-left {
                left: 16px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 575.98px) {
            .navbar-brand {
                font-size: 1rem;
            }

            .article-hero-image {
                height: 200px;
            }

            .article-wrapper {
                padding: 100px 0 60px;
            }

            .article-meta {
                gap: 10px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .cta-inline-banner {
                padding: 28px 20px;
                flex-direction: column;
                text-align: center;
            }

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

            .article-content h1 {
                font-size: 1.6rem;
            }

            .article-content h2 {
                font-size: 1.3rem;
            }

            .fab-left {
                left: 12px;
                bottom: 70px;
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141B23;
            --bg-card: #1A2330;
            --bg-card-hover: #1F2B3B;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --accent-gold: #FFD700;
            --accent-gold-dark: #CCAA00;
            --accent-red: #D32F2F;
            --accent-green: #00E676;
            --accent-blue: #2979FF;
            --accent-yellow: #FFD600;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-gold: rgba(255, 215, 0, 0.30);
            --border-accent: rgba(41, 121, 255, 0.50);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.40);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-blue: 0 0 18px rgba(41, 121, 255, 0.30);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-xl: 2.6rem;
            --font-lg: 1.75rem;
            --font-md: 1.15rem;
            --font-sm: 0.95rem;
            --font-xs: 0.85rem;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1280px;
            --navbar-height: 72px;
        }

        * {
            box-sizing: border-box;
        }

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

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

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

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

        /* Navigation */
        .navbar-main {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0;
            height: var(--navbar-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth);
        }

        .navbar-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--accent-gold);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            padding: 0;
            margin: 0;
            flex-direction: row;
        }

        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: var(--font-sm);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            display: block;
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .nav-cta-group {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .btn-nav-login {
            color: var(--text-primary);
            font-weight: 600;
            font-size: var(--font-sm);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            background: transparent;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .btn-nav-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #0A0E14;
            font-weight: 700;
            font-size: var(--font-sm);
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.25);
            white-space: nowrap;
        }

        .btn-nav-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.40);
        }

        .navbar-toggler {
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            padding: 6px 10px;
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.25);
        }

        /* Hero Section */
        .hero-section {
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(10, 14, 20, 0.95) 0%, rgba(20, 27, 35, 0.98) 100%), url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
            background-blend-mode: overlay;
            border-bottom: 1px solid var(--border-subtle);
        }

        .hero-content {
            max-width: 900px;
        }

        .hero-content h1 {
            font-size: clamp(2rem, 5vw, var(--font-xl));
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .hero-content .hero-subtitle {
            font-size: var(--font-md);
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
        }

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

        .stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .stat-item i {
            font-size: 1.8rem;
            color: var(--accent-blue);
        }

        .stat-text strong {
            display: block;
            font-size: 1.3rem;
            color: var(--text-primary);
        }

        .stat-text span {
            font-size: var(--font-xs);
            color: var(--text-muted);
        }

        /* Features Section */
        .features-section {
            padding: 60px 0;
            background: var(--bg-secondary);
        }

        .section-label {
            display: inline-block;
            background: rgba(41, 121, 255, 0.1);
            color: var(--accent-blue);
            font-weight: 600;
            font-size: var(--font-xs);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .section-heading {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .section-desc {
            font-size: var(--font-sm);
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 700px;
            line-height: 1.7;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all var(--transition-smooth);
        }

        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-accent);
            transform: translateY(-2px);
            box-shadow: var(--shadow-blue);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            background: rgba(41, 121, 255, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }

        .feature-icon i {
            font-size: 1.5rem;
            color: var(--accent-blue);
        }

        .feature-card h3 {
            font-size: var(--font-md);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: var(--font-sm);
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Odds Table Section */
        .odds-section {
            padding: 60px 0;
            background: var(--bg-primary);
        }

        .odds-table-wrapper {
            overflow-x: auto;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
        }

        .odds-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .odds-table th {
            background: var(--bg-secondary);
            color: var(--text-secondary);
            font-weight: 600;
            font-size: var(--font-xs);
            padding: 14px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border-subtle);
            white-space: nowrap;
        }

        .odds-table td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--border-subtle);
            font-size: var(--font-sm);
            color: var(--text-primary);
            white-space: nowrap;
        }

        .odds-table tbody tr:hover {
            background: var(--bg-card-hover);
        }

        .badge-live {
            display: inline-block;
            background: var(--accent-red);
            color: #fff;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 700;
        }

        .odds-value {
            font-weight: 700;
            color: var(--accent-gold);
            font-size: var(--font-sm);
        }

        .odds-change-up {
            color: var(--accent-green);
        }

        .odds-change-down {
            color: var(--accent-red);
        }

        /* Scenarios Section */
        .scenarios-section {
            padding: 60px 0;
            background: var(--bg-secondary);
        }

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

        .scenario-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
        }

        .scenario-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
        }

        .scenario-card .step-number {
            display: inline-block;
            width: 36px;
            height: 36px;
            background: var(--accent-gold);
            color: #0A0E14;
            font-weight: 800;
            border-radius: 50%;
            text-align: center;
            line-height: 36px;
            margin-bottom: 14px;
        }

        .scenario-card h3 {
            font-size: var(--font-md);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .scenario-card p {
            font-size: var(--font-sm);
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
        }

        .cta-box {
            background: linear-gradient(135deg, rgba(26, 35, 48, 0.9), rgba(20, 27, 35, 0.95));
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 48px 36px;
            text-align: left;
            max-width: 800px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: var(--font-lg);
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }

        .cta-box p {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .cta-box .btn-primary-custom {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #0A0E14;
            font-weight: 700;
            font-size: var(--font-md);
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            text-align: center;
        }

        .cta-box .btn-primary-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.45);
        }

        /* FAQ Section */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-primary);
        }

        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            margin-bottom: 12px;
            transition: all var(--transition-fast);
        }

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

        .faq-item h3 {
            font-size: var(--font-md);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .faq-item p {
            font-size: var(--font-sm);
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* Footer */
        .footer-main {
            background: var(--bg-secondary);
            padding: 50px 0 30px;
            border-top: 1px solid var(--border-subtle);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 30px;
        }

        .footer-col h5 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: var(--font-xs);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 24px;
            text-align: center;
        }

        .footer-badge {
            display: inline-block;
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            font-size: var(--font-xs);
            padding: 6px 14px;
            border-radius: 20px;
            margin: 0 6px;
            border: 1px solid var(--border-gold);
        }

        .footer-bottom p {
            font-size: var(--font-xs);
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 991px) {
            .navbar-nav {
                gap: 2px;
            }
            .navbar-nav .nav-link {
                padding: 6px 12px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 768px) {
            .navbar-collapse {
                background: rgba(10, 14, 20, 0.98);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 16px;
                margin-top: 8px;
            }
            .navbar-nav {
                flex-direction: column;
                gap: 4px;
            }
            .nav-cta-group {
                flex-direction: column;
                width: 100%;
                margin-top: 12px;
            }
            .btn-nav-login,
            .btn-nav-signup {
                width: 100%;
                text-align: center;
            }
            .hero-section {
                padding: 60px 0 40px;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .scenarios-grid {
                grid-template-columns: 1fr;
            }
            .cta-box {
                padding: 32px 20px;
                text-align: left;
            }
            .section-heading {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .navbar-brand {
                font-size: 1.1rem;
            }
            .navbar-brand i {
                font-size: 1.4rem;
            }
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-content .hero-subtitle {
                font-size: 0.95rem;
            }
            .odds-table-wrapper {
                font-size: 0.8rem;
            }
            .odds-table th,
            .odds-table td {
                padding: 10px 12px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141B23;
            --bg-card: #1A2330;
            --bg-card-hover: #1F2B3B;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --accent-gold: #FFD700;
            --accent-gold-dark: #CCAA00;
            --accent-red: #D32F2F;
            --accent-green: #00E676;
            --accent-blue: #2979FF;
            --accent-yellow: #FFD600;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-gold: rgba(255, 215, 0, 0.30);
            --border-accent: rgba(41, 121, 255, 0.50);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.40);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-blue: 0 0 18px rgba(41, 121, 255, 0.30);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-xl: 2.6rem;
            --font-lg: 1.75rem;
            --font-md: 1.15rem;
            --font-sm: 0.95rem;
            --font-xs: 0.85rem;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1280px;
            --navbar-height: 72px;
        }

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

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

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

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

        .navbar-main {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0;
            height: var(--navbar-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth);
        }

        .navbar-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--accent-gold);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: var(--font-sm);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .nav-cta-group {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-shrink: 0;
        }

        .btn-nav-login {
            color: var(--text-primary);
            font-weight: 600;
            font-size: var(--font-sm);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            background: transparent;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .btn-nav-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #0A0E14;
            font-weight: 700;
            font-size: var(--font-sm);
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.25);
            white-space: nowrap;
        }

        .btn-nav-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.40);
            color: #0A0E14;
        }

        .navbar-toggler {
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            padding: 6px 10px;
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.25);
        }

        .navbar-toggler i {
            font-size: 1.4rem;
            color: var(--text-secondary);
        }

        .page-banner {
            padding: 140px 0 80px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(10, 14, 20, 0.92) 0%, rgba(20, 27, 35, 0.96) 100%), url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
            background-blend-mode: overlay;
        }

        .page-banner h1 {
            font-size: var(--font-xl);
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .page-banner .lead {
            font-size: var(--font-md);
            color: var(--text-secondary);
            max-width: 720px;
        }

        .section-block {
            padding: 80px 0;
        }

        .section-title {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: var(--font-sm);
            color: var(--text-muted);
            margin-bottom: 48px;
        }

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

        .method-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .method-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }

        .method-card .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .method-card h4 {
            font-size: var(--font-md);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .method-card p {
            font-size: var(--font-xs);
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        .comparison-table-wrap {
            overflow-x: auto;
            margin-top: 32px;
        }

        .comparison-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0 12px;
        }

        .comparison-table thead th {
            background: var(--bg-secondary);
            color: var(--text-secondary);
            font-weight: 600;
            font-size: var(--font-sm);
            padding: 16px 20px;
            text-align: left;
            border-bottom: 2px solid var(--border-gold);
        }

        .comparison-table thead th:first-child {
            border-radius: var(--radius-md) 0 0 var(--radius-md);
        }

        .comparison-table thead th:last-child {
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }

        .comparison-table tbody td {
            background: var(--bg-card);
            padding: 16px 20px;
            font-size: var(--font-sm);
            color: var(--text-secondary);
            vertical-align: middle;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .comparison-table tbody td:first-child {
            border-left: 1px solid var(--border-subtle);
            border-radius: var(--radius-md) 0 0 var(--radius-md);
        }

        .comparison-table tbody td:last-child {
            border-right: 1px solid var(--border-subtle);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }

        .comparison-table tbody tr:hover td {
            background: var(--bg-card-hover);
        }

        .badge-premium {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #0A0E14;
            font-weight: 700;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 20px;
            display: inline-block;
        }

        .badge-free {
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 20px;
            display: inline-block;
        }

        .step-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            gap: 20px;
        }

        .step-list li {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: all var(--transition-fast);
        }

        .step-list li:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-blue);
        }

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent-blue);
            color: #FFFFFF;
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .step-content h4 {
            font-size: var(--font-md);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .step-content p {
            font-size: var(--font-xs);
            color: var(--text-muted);
            margin: 0;
        }

        .faq-accordion .accordion-item {
            background: transparent;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-accordion .accordion-header button {
            background: var(--bg-card);
            color: var(--text-primary);
            font-weight: 600;
            font-size: var(--font-sm);
            padding: 20px 24px;
            box-shadow: none;
            border-radius: var(--radius-md) !important;
        }

        .faq-accordion .accordion-header button:not(.collapsed) {
            background: var(--bg-card-hover);
            color: var(--accent-gold);
            box-shadow: none;
        }

        .faq-accordion .accordion-header button:focus {
            box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.3);
        }

        .faq-accordion .accordion-body {
            background: var(--bg-secondary);
            color: var(--text-secondary);
            font-size: var(--font-xs);
            padding: 20px 24px;
            line-height: 1.7;
        }

        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(20, 27, 35, 0.98) 0%, rgba(26, 35, 48, 0.98) 100%), url('/assets/images/backpic/back-3.jpg') center center / cover no-repeat;
            background-blend-mode: overlay;
            text-align: center;
        }

        .cta-section h2 {
            font-size: var(--font-lg);
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: var(--font-md);
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-primary {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #0A0E14;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 36px;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 24px rgba(255, 215, 0, 0.3);
            display: inline-block;
        }

        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 32px rgba(255, 215, 0, 0.45);
            color: #0A0E14;
        }

        .footer-main {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 60px 0 30px;
        }

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

        .footer-col h5 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: var(--font-xs);
            margin-bottom: 10px;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-subtle);
        }

        .footer-badge {
            display: inline-block;
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            font-size: var(--font-xs);
            padding: 6px 14px;
            border-radius: 20px;
            margin: 0 6px 8px;
            font-weight: 500;
        }

        .footer-bottom p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        @media (max-width: 991px) {
            .navbar-collapse {
                background: rgba(10, 14, 20, 0.95);
                backdrop-filter: blur(20px);
                border-radius: var(--radius-md);
                padding: 16px;
                margin-top: 8px;
                border: 1px solid var(--border-subtle);
            }
            .nav-cta-group {
                margin-top: 12px;
            }
            .page-banner {
                padding: 120px 0 60px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .section-block {
                padding: 60px 0;
            }
            .comparison-table thead {
                display: none;
            }
            .comparison-table tbody td {
                display: block;
                text-align: right;
                padding: 12px 16px;
                border: 1px solid var(--border-subtle);
                border-radius: var(--radius-md);
                margin-bottom: 8px;
            }
            .comparison-table tbody td::before {
                content: attr(data-label);
                float: left;
                font-weight: 700;
                color: var(--accent-gold);
            }
        }

        @media (max-width: 575px) {
            .navbar-brand {
                font-size: 1rem;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .btn-cta-primary {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141B23;
            --bg-card: #1A2330;
            --bg-card-hover: #1F2B3B;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --accent-gold: #FFD700;
            --accent-gold-dark: #CCAA00;
            --accent-red: #D32F2F;
            --accent-green: #00E676;
            --accent-blue: #2979FF;
            --accent-yellow: #FFD600;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-gold: rgba(255, 215, 0, 0.30);
            --border-accent: rgba(41, 121, 255, 0.50);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.40);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-blue: 0 0 18px rgba(41, 121, 255, 0.30);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-xl: 2.6rem;
            --font-lg: 1.75rem;
            --font-md: 1.15rem;
            --font-sm: 0.95rem;
            --font-xs: 0.85rem;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1280px;
            --navbar-height: 72px;
        }

        * {
            box-sizing: border-box;
        }

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

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

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

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

        .navbar-main {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0;
            height: var(--navbar-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth);
        }

        .navbar-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--accent-gold);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: var(--font-sm);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .nav-cta-group {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .btn-nav-login {
            color: var(--text-primary);
            font-weight: 600;
            font-size: var(--font-sm);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            background: transparent;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .btn-nav-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .btn-nav-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #0A0E14;
            font-weight: 700;
            font-size: var(--font-sm);
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.25);
            cursor: pointer;
        }

        .btn-nav-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.40);
            color: #0A0E14;
        }

        .navbar-toggler {
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            padding: 6px 10px;
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.25);
        }

        .navbar-toggler i {
            font-size: 1.3rem;
        }

        .page-banner {
            padding: 140px 0 70px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(10, 14, 20, 0.93) 0%, rgba(20, 27, 35, 0.97) 100%), url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
            background-blend-mode: overlay;
            text-align: left;
        }

        .page-banner-content {
            max-width: 760px;
        }

        .page-banner .badge-label {
            display: inline-block;
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: var(--font-xs);
            padding: 6px 16px;
            border-radius: 50px;
            border: 1px solid var(--border-gold);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .page-banner h1 {
            font-size: var(--font-xl);
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.15;
            margin-bottom: 18px;
        }

        .page-banner h1 span {
            color: var(--accent-gold);
        }

        .page-banner .lead {
            font-size: var(--font-md);
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .section-block {
            padding: 80px 0;
        }

        .section-block.bg-alt {
            background-color: var(--bg-secondary);
        }

        .section-label {
            display: inline-block;
            font-weight: 700;
            font-size: var(--font-xs);
            color: var(--accent-blue);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: var(--font-lg);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: var(--font-md);
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 700px;
            margin-bottom: 40px;
        }

        .guide-step-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            position: relative;
            height: 100%;
        }

        .guide-step-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }

        .guide-step-number {
            font-size: 3.2rem;
            font-weight: 900;
            color: rgba(255, 215, 0, 0.15);
            position: absolute;
            top: 16px;
            right: 20px;
            line-height: 1;
        }

        .guide-step-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(255, 215, 0, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .guide-step-card h4 {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .guide-step-card p {
            font-size: var(--font-sm);
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        .info-highlight-box {
            background: linear-gradient(135deg, rgba(41, 121, 255, 0.1), rgba(41, 121, 255, 0.03));
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }

        .info-highlight-box .icon-giant {
            font-size: 3.6rem;
            color: var(--accent-blue);
            flex-shrink: 0;
        }

        .info-highlight-box .text-content h4 {
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .info-highlight-box .text-content p {
            color: var(--text-secondary);
            margin-bottom: 0;
            font-size: var(--font-sm);
            line-height: 1.7;
        }

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

        .strategy-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

        .strategy-item:hover {
            border-color: var(--accent-green);
            background: var(--bg-card-hover);
            box-shadow: 0 0 18px rgba(0, 230, 118, 0.15);
        }

        .strategy-item .strategy-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(0, 230, 118, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-green);
            flex-shrink: 0;
        }

        .strategy-item .strategy-text h5 {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .strategy-item .strategy-text p {
            font-size: var(--font-xs);
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-primary);
            font-weight: 700;
            font-size: var(--font-md);
            padding: 20px 24px;
            box-shadow: none;
            border: none;
            transition: all var(--transition-fast);
        }

        .faq-accordion .accordion-button::after {
            filter: brightness(0) invert(1);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-card-hover);
            color: var(--accent-gold);
            box-shadow: none;
        }

        .faq-accordion .accordion-body {
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: var(--font-sm);
            line-height: 1.7;
            padding: 0 24px 20px;
        }

        .cta-flash-section {
            padding: 90px 0;
            background: linear-gradient(180deg, rgba(10, 14, 20, 0.9) 0%, rgba(20, 27, 35, 0.95) 100%), url('/assets/images/backpic/back-3.jpg') center center / cover no-repeat;
            background-blend-mode: overlay;
            text-align: left;
        }

        .cta-flash-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            border: 1px solid var(--border-gold);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-gold);
            text-align: left;
        }

        .cta-flash-card .flash-badge {
            display: inline-block;
            background: var(--accent-red);
            color: #fff;
            font-weight: 700;
            font-size: var(--font-xs);
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 16px;
            animation: pulse-badge 1.8s infinite;
        }

        @keyframes pulse-badge {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }

        .cta-flash-card h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .cta-flash-card p {
            font-size: var(--font-md);
            color: var(--text-muted);
            margin-bottom: 24px;
            line-height: 1.65;
        }

        .btn-primary-gold {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: #0A0E14;
            font-weight: 700;
            font-size: var(--font-sm);
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            border: none;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.30);
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
        }

        .btn-primary-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
            color: #0A0E14;
        }

        .image-cover-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-col h5 {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: var(--font-xs);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: center;
            font-size: var(--font-xs);
        }

        .footer-badge {
            background: rgba(255, 255, 255, 0.05);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: var(--font-xs);
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        @media (max-width: 991px) {
            .page-banner {
                padding: 120px 0 50px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .section-block {
                padding: 56px 0;
            }
            .strategy-grid {
                grid-template-columns: 1fr;
            }
            .cta-flash-card {
                padding: 32px 24px;
            }
            .info-highlight-box {
                padding: 28px 24px;
                gap: 20px;
            }
        }

        @media (max-width: 767px) {
            .navbar-nav {
                background: rgba(10, 14, 20, 0.98);
                padding: 16px;
                border-radius: var(--radius-md);
                margin-top: 8px;
            }
            .nav-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .btn-nav-login, .btn-nav-signup {
                width: 100%;
                text-align: center;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .guide-step-number {
                font-size: 2.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .navbar-brand {
                font-size: 1.1rem;
            }
            .navbar-brand i {
                font-size: 1.3rem;
            }
            .page-banner {
                padding: 110px 0 40px;
            }
            .cta-flash-card h2 {
                font-size: 1.5rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141B23;
            --bg-card: #1A2330;
            --bg-card-hover: #1F2B3B;
            --text-primary: #FFFFFF;
            --text-secondary: #CBD5E1;
            --text-muted: #94A3B8;
            --accent-gold: #FFD700;
            --accent-gold-dark: #CCAA00;
            --accent-red: #D32F2F;
            --accent-green: #00E676;
            --accent-blue: #2979FF;
            --accent-yellow: #FFD600;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-gold: rgba(255, 215, 0, 0.30);
            --border-accent: rgba(41, 121, 255, 0.50);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.40);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-blue: 0 0 18px rgba(41, 121, 255, 0.30);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-xl: 2.6rem;
            --font-lg: 1.75rem;
            --font-md: 1.15rem;
            --font-sm: 0.95rem;
            --font-xs: 0.85rem;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1280px;
            --navbar-height: 72px;
        }

        body {
            font-family: 'Segoe UI', 'Inter', 'Roboto', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--navbar-height);
        }

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

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

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

        /* Navigation */
        .navbar-main {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.88);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0;
            height: var(--navbar-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }

        .navbar-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--accent-gold);
            letter-spacing: -0.4px;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .navbar-brand i {
            font-size: 1.7rem;
            color: var(--accent-gold);
            filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.5));
        }

        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: var(--font-sm);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            text-shadow: 0 0 8px rgba(255, 215, 0, 0.3);
        }

        .nav-cta-group {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .btn-nav-login {
            color: var(--text-primary);
            font-weight: 600;
            font-size: var(--font-sm);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            background: transparent;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .btn-nav-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
            box-shadow: 0 0 12px rgba(255, 215, 0, 0.2);
        }

        .btn-nav-signup {
            background: linear-gradient(135deg, var(--accent-gold), #E6B800);
            color: #0A0E14;
            font-weight: 700;
            font-size: var(--font-sm);
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.3);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-nav-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.45);
            color: #0A0E14;
        }

        .navbar-toggler {
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.25);
            outline: none;
        }

        .navbar-toggler i {
            font-size: 1.3rem;
        }

        /* Hero - Crowdfunding Preview */
        .hero-section {
            padding: 100px 0 70px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, rgba(8, 14, 20, 0.92) 0%, rgba(20, 27, 35, 0.96) 100%), url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
            background-blend-mode: overlay;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: var(--font-xs);
            padding: 8px 16px;
            border-radius: 50px;
            margin-bottom: 20px;
            backdrop-filter: blur(10px);
        }

        .hero-badge i {
            color: var(--accent-yellow);
            font-size: 0.9rem;
        }

        .hero-title {
            font-size: var(--font-xl);
            font-weight: 900;
            line-height: 1.15;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .hero-title span {
            color: var(--accent-gold);
            text-shadow: 0 0 15px rgba(255, 215, 0, 0.4);
        }

        .hero-desc {
            font-size: var(--font-md);
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.6;
        }

        .progress-panel {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(15px);
        }

        .progress-ring-wrapper {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-bottom: 28px;
        }

        .progress-ring {
            position: relative;
            width: 110px;
            height: 110px;
            flex-shrink: 0;
        }

        .progress-ring svg {
            width: 100%;
            height: 100%;
            transform: rotate(-90deg);
        }

        .progress-ring-bg {
            fill: none;
            stroke: var(--border-subtle);
            stroke-width: 8;
        }

        .progress-ring-fill {
            fill: none;
            stroke: var(--accent-gold);
            stroke-width: 8;
            stroke-linecap: round;
            stroke-dasharray: 251.2;
            stroke-dashoffset: 62.8;
            transition: stroke-dashoffset 1.5s ease;
            filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.5));
        }

        .progress-percent {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent-gold);
            text-shadow: 0 0 10px rgba(255, 215, 0, 0.4);
        }

        .progress-stats {
            flex: 1;
        }

        .progress-stat-item {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            font-size: var(--font-sm);
        }

        .progress-stat-item strong {
            color: var(--accent-gold);
            font-weight: 700;
        }

        .tier-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 12px;
        }

        .tier-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 16px;
            text-align: left;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .tier-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-2px);
        }

        .tier-card h5 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 4px 0;
        }

        .tier-card p {
            font-size: var(--font-xs);
            color: var(--text-muted);
            margin: 0;
        }

        .tier-card .price {
            font-weight: 800;
            color: var(--accent-gold);
            font-size: 1rem;
            margin-top: 6px;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent-gold), #E6B800);
            color: #0A0E14;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            cursor: pointer;
            width: 100%;
            justify-content: center;
            margin-top: 20px;
        }

        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.5);
            color: #0A0E14;
        }

        /* Features Section */
        .features-section {
            padding: 80px 0;
            background: var(--bg-secondary);
            position: relative;
        }

        .section-label {
            display: inline-block;
            font-weight: 700;
            font-size: var(--font-xs);
            color: var(--accent-blue);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 8px;
            background: rgba(41, 121, 255, 0.1);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
        }

        .section-title {
            font-size: var(--font-lg);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: var(--font-md);
            color: var(--text-secondary);
            margin-bottom: 48px;
            max-width: 700px;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-gold), transparent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

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

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

        .feature-icon {
            width: 52px;
            height: 52px;
            background: rgba(255, 215, 0, 0.1);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            color: var(--accent-gold);
            font-size: 1.5rem;
            transition: all var(--transition-fast);
        }

        .feature-card:hover .feature-icon {
            background: rgba(255, 215, 0, 0.2);
            box-shadow: 0 0 16px rgba(255, 215, 0, 0.3);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 8px 0;
            color: var(--text-primary);
        }

        .feature-card p {
            font-size: var(--font-sm);
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Scenario Section */
        .scenario-section {
            padding: 80px 0;
            background: var(--bg-primary);
            position: relative;
        }

        .scenario-bg-decor {
            position: absolute;
            top: 0;
            right: 0;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle at center, rgba(255, 215, 0, 0.04), transparent 70%);
            pointer-events: none;
        }

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

        .scenario-image-wrapper {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
        }

        .scenario-image-wrapper img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-xl);
            transition: transform var(--transition-smooth);
        }

        .scenario-image-wrapper:hover img {
            transform: scale(1.03);
        }

        .scenario-badge-corner {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent-red);
            color: white;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: var(--font-xs);
            box-shadow: 0 4px 12px rgba(211, 47, 47, 0.4);
        }

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

        .scenario-list li {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-subtle);
            align-items: flex-start;
        }

        .scenario-list li:last-child {
            border-bottom: none;
        }

        .scenario-list-icon {
            width: 42px;
            height: 42px;
            background: rgba(41, 121, 255, 0.12);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-blue);
            font-size: 1.1rem;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .scenario-list-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 4px 0;
        }

        .scenario-list-content p {
            font-size: var(--font-sm);
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* Testimonials Section */
        .testimonials-section {
            padding: 80px 0;
            background: var(--bg-secondary);
            position: relative;
        }

        .testimonial-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-fast);
        }

        .testimonial-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
        }

        .testimonial-stars {
            color: var(--accent-yellow);
            margin-bottom: 14px;
            font-size: 0.9rem;
            letter-spacing: 2px;
        }

        .testimonial-text {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
            border-top: 1px solid var(--border-subtle);
            padding-top: 14px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent-gold), #B89400);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E14;
            font-weight: 800;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .testimonial-author-info strong {
            display: block;
            font-size: var(--font-sm);
            color: var(--text-primary);
        }

        .testimonial-author-info span {
            font-size: var(--font-xs);
            color: var(--text-muted);
        }

        /* FAQ Section */
        .faq-section {
            padding: 80px 0;
            background: var(--bg-primary);
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

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

        .faq-item:hover {
            border-color: var(--border-gold);
            box-shadow: 0 2px 16px rgba(255, 215, 0, 0.1);
        }

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

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

        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--accent-gold);
            font-size: 0.9rem;
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: var(--font-sm);
            color: var(--text-muted);
            line-height: 1.65;
            display: none;
        }

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

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

        .faq-item.open {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
        }

        /* CTA Section */
        .cta-section {
            padding: 90px 0;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.05), rgba(20, 27, 35, 0.95)), url('/assets/images/backpic/back-3.jpg') center center / cover no-repeat;
            background-blend-mode: overlay;
            text-align: center;
            position: relative;
        }

        .cta-card {
            max-width: 680px;
            margin: 0 auto;
            background: rgba(26, 35, 48, 0.9);
            backdrop-filter: blur(20px);
            border-radius: var(--radius-xl);
            padding: 52px 40px;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-gold);
        }

        .cta-card h2 {
            font-size: 1.9rem;
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .cta-card p {
            color: var(--text-secondary);
            margin-bottom: 32px;
            font-size: var(--font-md);
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent-gold), #E6B800);
            color: #0A0E14;
            font-weight: 800;
            font-size: 1.15rem;
            padding: 16px 44px;
            border-radius: var(--radius-lg);
            border: none;
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.4);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .btn-cta-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(255, 215, 0, 0.6);
            color: #0A0E14;
        }

        /* Footer */
        .footer-main {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 60px 0 30px;
            color: var(--text-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-col h5 {
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: var(--font-sm);
            margin-bottom: 10px;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            border-top: 1px solid var(--border-subtle);
            padding-top: 24px;
            font-size: var(--font-xs);
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 20px;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 230, 118, 0.1);
            border: 1px solid rgba(0, 230, 118, 0.3);
            color: var(--accent-green);
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: var(--font-xs);
        }

        .footer-badge i {
            font-size: 0.8rem;
        }

        /* FAB */
        .fab-container {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1000;
        }

        .fab-btn {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1A2330, #0D1520);
            border: 2px solid var(--accent-yellow);
            color: var(--accent-yellow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 0 20px rgba(255, 214, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.5);
            transition: all var(--transition-fast);
            cursor: pointer;
            animation: floatFAB 2.8s ease-in-out infinite;
            position: relative;
        }

        .fab-btn::after {
            content: 'HOT';
            position: absolute;
            top: -6px;
            right: -6px;
            background: var(--accent-red);
            color: white;
            font-size: 0.65rem;
            font-weight: 800;
            padding: 2px 8px;
            border-radius: 50px;
            animation: blinkBadge 1.2s ease-in-out infinite;
            box-shadow: 0 0 10px rgba(211, 47, 47, 0.6);
        }

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

        @keyframes blinkBadge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        .fab-btn:hover {
            transform: scale(1.15);
            box-shadow: 0 0 30px rgba(255, 214, 0, 0.7), 0 8px 24px rgba(0, 0, 0, 0.6);
            border-color: #FFF;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
            .testimonial-cards {
                grid-template-columns: 1fr 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            :root {
                --font-xl: 2.2rem;
                --font-lg: 1.55rem;
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 90px 0 50px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-cards {
                grid-template-columns: 1fr;
            }
            .tier-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-card {
                padding: 36px 20px;
            }
            .cta-card h2 {
                font-size: 1.5rem;
            }
            .nav-cta-group {
                gap: 6px;
            }
            .btn-nav-login,
            .btn-nav-signup {
                padding: 6px 14px;
                font-size: 0.85rem;
            }
            :root {
                --font-xl: 1.9rem;
                --font-lg: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .progress-panel {
                padding: 24px 18px;
            }
            .progress-ring-wrapper {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .fab-container {
                left: 10px;
                bottom: 80px;
            }
            .fab-btn {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
        }