/* roulang page: index */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #A0B5AC;
            --border-light: rgba(255, 215, 0, 0.3);
            --shadow-gold: 0 8px 20px rgba(255, 215, 0, 0.15);
            --border-radius-card: 16px;
            --border-radius-btn: 12px;
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max-width: 1200px;
            --font-heading: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

        .container {
            max-width: var(--container-max-width);
            margin: 0 auto;
            padding-left: 15px;
            padding-right: 15px;
        }

        /* Navigation */
        .navbar {
            background-color: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--accent-gold) !important;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .navbar-brand i {
            font-size: 1.8rem;
            color: var(--accent-gold);
        }

        .nav-link {
            color: var(--text-mint) !important;
            font-weight: 600;
            margin: 0 8px;
            padding: 8px 16px !important;
            border-radius: 30px;
            transition: var(--transition-smooth);
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--accent-gold) !important;
            background-color: rgba(255, 215, 0, 0.1);
        }

        .btn-nav-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 10px 22px;
            border-radius: 30px;
            font-weight: 700;
            transition: var(--transition-smooth);
        }

        .btn-nav-login:hover {
            background-color: var(--accent-gold);
            color: #0A2E1C;
        }

        .btn-nav-signup {
            background: var(--accent-red);
            color: white;
            padding: 10px 26px;
            border-radius: 30px;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(211, 47, 47, 0.4);
            transition: var(--transition-smooth);
            border: none;
        }

        .btn-nav-signup:hover {
            background-color: #B71C1C;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(211, 47, 47, 0.5);
        }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(135deg, #0A2E1C 0%, #123E25 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-blend-mode: overlay;
            padding: 100px 0 100px;
            position: relative;
            border-bottom: 2px solid var(--accent-gold);
        }

        .hero-badge {
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 20px;
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
            margin-bottom: 20px;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-mint);
            margin-bottom: 30px;
            line-height: 1.7;
        }

        .hero-stats {
            display: flex;
            gap: 30px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
        }

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

        .btn-cta-primary {
            background: var(--accent-red);
            color: white;
            padding: 15px 40px;
            border-radius: 50px;
            font-weight: 800;
            font-size: 1.2rem;
            border: none;
            box-shadow: 0 8px 20px rgba(211, 47, 47, 0.5);
            transition: var(--transition-smooth);
        }

        .btn-cta-primary:hover {
            background-color: #B71C1C;
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(211, 47, 47, 0.6);
        }

        /* Section General */
        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 15px;
        }

        .section-desc {
            color: var(--text-mint);
            font-size: 1.1rem;
            margin-bottom: 40px;
            line-height: 1.7;
        }

        /* Deal Grid */
        .deal-card {
            background: rgba(18, 62, 37, 0.7);
            backdrop-filter: blur(15px);
            border: 1px solid var(--border-light);
            border-radius: var(--border-radius-card);
            padding: 28px;
            transition: var(--transition-smooth);
            height: 100%;
        }

        .deal-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-gold);
            border-color: var(--accent-gold);
        }

        .deal-icon {
            font-size: 2.5rem;
            color: var(--accent-gold);
            margin-bottom: 15px;
        }

        .deal-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .deal-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .badge-hot {
            background: var(--accent-red);
            color: white;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            margin-left: 8px;
        }

        /* Review Wall */
        .review-card {
            background: rgba(18, 62, 37, 0.6);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--border-radius-card);
            padding: 30px;
        }

        .review-stars i {
            color: var(--accent-gold);
            margin-right: 3px;
        }

        .review-text {
            font-style: italic;
            color: var(--text-mint);
            margin: 15px 0;
        }

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

        /* Countdown */
        .countdown-box {
            background: rgba(18, 62, 37, 0.8);
            border: 2px solid var(--accent-red);
            border-radius: var(--border-radius-card);
            padding: 25px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .timer-digit {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            background: rgba(0, 0, 0, 0.4);
            padding: 10px 15px;
            border-radius: 10px;
            margin: 0 5px;
        }

        /* Bonus Ladder */
        .bonus-step {
            background: rgba(18, 62, 37, 0.5);
            backdrop-filter: blur(10px);
            border-left: 4px solid var(--accent-gold);
            border-radius: 8px;
            padding: 20px;
            margin-bottom: 15px;
            transition: var(--transition-smooth);
        }

        .bonus-step:hover {
            border-left-color: var(--accent-red);
            background: rgba(18, 62, 37, 0.8);
        }

        .bonus-level {
            font-weight: 800;
            color: var(--accent-gold);
            font-size: 1.2rem;
        }

        /* FAQ */
        .accordion-button {
            background-color: rgba(18, 62, 37, 0.8);
            color: var(--text-white);
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .accordion-button:not(.collapsed) {
            background-color: var(--accent-gold);
            color: #0A2E1C;
        }

        .accordion-body {
            background-color: rgba(10, 46, 28, 0.9);
            color: var(--text-mint);
        }

        /* Footer */
        .footer {
            background-color: #051A10;
            border-top: 2px solid var(--accent-gold);
            padding: 40px 0 20px;
        }

        .footer a {
            color: var(--text-muted);
        }

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

        /* FAB */
        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 80px;
            z-index: 50;
            background: rgba(10, 46, 28, 0.9);
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            transition: var(--transition-smooth);
            cursor: pointer;
        }

        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 25px rgba(255, 215, 0, 0.5);
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.2rem;
            }

            .hero-stats {
                gap: 15px;
            }

            .navbar-nav {
                background: rgba(10, 46, 28, 0.95);
                padding: 20px;
                border-radius: 10px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #252527;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --text-primary: #F5F5F7;
            --text-secondary: #D4AC0D;
            --text-muted: #A0A0A8;
            --border-color: #3A3A3C;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 20px rgba(197,160,89,0.2);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition: all 0.3s ease;
        }

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

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

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

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

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

        .container {
            max-width: 1200px;
            padding: 0 20px;
        }

        /* Navbar */
        .navbar {
            background: rgba(28, 28, 30, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
        }

        .navbar-brand {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-gold) !important;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }

        .navbar-brand i {
            font-size: 1.8rem;
            color: var(--accent-amber);
        }

        .nav-link {
            color: var(--text-muted) !important;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--transition);
            margin: 0 2px;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(197, 160, 89, 0.1);
        }

        .btn-nav-login {
            background: transparent;
            color: var(--accent-gold);
            border: 2px solid var(--accent-gold);
            padding: 8px 20px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-block;
        }

        .btn-nav-login:hover {
            background: rgba(197, 160, 89, 0.15);
            color: var(--accent-gold);
        }

        .btn-nav-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: #121212;
            border: none;
            padding: 8px 20px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: var(--shadow-gold);
            display: inline-block;
        }

        .btn-nav-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(197,160,89,0.4);
            color: #121212;
        }

        /* Article Header */
        .article-header {
            background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
            border-bottom: 1px solid var(--border-color);
            padding: 60px 0 40px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .badge-category {
            background: rgba(197, 160, 89, 0.15);
            color: var(--accent-gold);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        .text-date {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .article-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .article-featured-image {
            width: 100%;
            height: 460px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            margin-top: 24px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
        }

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

        .content-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .content-text {
            font-size: 1.1rem;
            line-height: 1.8;
            color: var(--text-primary);
        }

        .content-text h2 {
            font-size: 2rem;
            color: var(--accent-gold);
            margin: 40px 0 20px;
        }

        .content-text h3 {
            font-size: 1.4rem;
            color: var(--text-secondary);
            margin: 30px 0 16px;
        }

        .content-text p {
            margin-bottom: 20px;
            color: var(--text-muted);
        }

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

        .content-text ul, .content-text ol {
            margin: 20px 0;
            padding-left: 24px;
        }

        .content-text li {
            margin-bottom: 10px;
            color: var(--text-muted);
        }

        .content-text blockquote {
            border-left: 4px solid var(--accent-gold);
            background: var(--bg-secondary);
            padding: 24px 32px;
            margin: 30px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
            font-size: 1.15rem;
        }

        .content-text img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            margin: 40px auto 0;
            text-align: center;
            max-width: 800px;
            border: 1px solid rgba(197, 160, 89, 0.2);
        }

        .cta-section h3 {
            font-size: 1.8rem;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

        .cta-section p {
            color: var(--text-muted);
            margin-bottom: 28px;
            font-size: 1.1rem;
        }

        .btn-cta-primary {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: #121212;
            border: none;
            padding: 14px 40px;
            border-radius: 12px;
            font-weight: 800;
            font-size: 1.1rem;
            transition: var(--transition);
            box-shadow: var(--shadow-gold);
            display: inline-block;
        }

        .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(197,160,89,0.5);
            color: #121212;
        }

        .btn-cta-secondary {
            background: transparent;
            color: var(--accent-gold);
            border: 2px solid var(--accent-gold);
            padding: 14px 40px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1.1rem;
            margin-left: 12px;
            transition: var(--transition);
            display: inline-block;
        }

        .btn-cta-secondary:hover {
            background: rgba(197,160,89,0.1);
            color: var(--accent-gold);
        }

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

        .section-title {
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: 40px;
            text-align: left;
            font-weight: 800;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .card-related {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            cursor: pointer;
        }

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

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

        .card-related-body {
            padding: 20px;
        }

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

        .card-related-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin: 0;
        }

        /* Not Found */
        .not-found {
            text-align: center;
            padding: 80px 20px;
        }

        .not-found i {
            font-size: 4rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }

        .not-found h3 {
            font-size: 2rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .btn-back-home {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: #121212;
            padding: 12px 32px;
            border-radius: 12px;
            font-weight: 700;
            transition: var(--transition);
            display: inline-block;
        }

        .btn-back-home:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold);
            color: #121212;
        }

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

        .footer h5 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer a {
            color: var(--text-muted);
            transition: var(--transition);
            margin-bottom: 8px;
        }

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

        .badge-trust {
            padding: 8px 16px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.85rem;
            margin-left: 8px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-title {
                font-size: 2.2rem;
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-featured-image {
                height: 320px;
            }
        }

        @media (max-width: 768px) {
            .article-title {
                font-size: 1.8rem;
            }
            .article-featured-image {
                height: 240px;
                border-radius: var(--radius-md);
            }
            .cta-section {
                padding: 30px 20px;
            }
            .btn-cta-secondary {
                margin-left: 0;
                margin-top: 12px;
            }
            .content-wrapper {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            .navbar-brand {
                font-size: 1.3rem;
            }
            .article-featured-image {
                height: 200px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-card: #1E1E1E;
            --accent-gold: #C5A059;
            --accent-amber: #FFBF00;
            --accent-bronze: #8B6914;
            --text-warm: #F5F5F7;
            --text-muted: #A6A6A6;
            --text-gold: #D4AC0D;
            --border-dim: #2C2C2E;
            --border-gold: rgba(197, 160, 89, 0.3);
            --shadow-gold: 0 8px 30px rgba(197, 160, 89, 0.08);
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --transition-smooth: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

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

        h1, h2, h3, h4 {
            font-weight: 600;
            letter-spacing: -0.02em;
        }

        h1 {
            font-size: 2.8rem;
            font-weight: 700;
        }

        h2 {
            font-size: 2.2rem;
            color: var(--text-warm);
        }

        .text-gold {
            color: var(--accent-amber) !important;
        }

        .bg-secondary-custom {
            background-color: var(--bg-secondary) !important;
        }

        .border-dim {
            border-color: var(--border-dim) !important;
        }

        .btn-gold {
            background: linear-gradient(145deg, #D4AC0D, #B8860B);
            border: none;
            color: #121212;
            font-weight: 600;
            padding: 0.7rem 2.2rem;
            border-radius: 3rem;
            letter-spacing: 0.03em;
            transition: var(--transition-smooth);
            box-shadow: 0 4px 12px rgba(212, 172, 13, 0.3);
        }

        .btn-gold:hover {
            background: linear-gradient(145deg, #E5B81A, #C99C0E);
            color: #000;
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(212, 172, 13, 0.5);
        }

        .btn-outline-gold {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-amber);
            padding: 0.7rem 2.2rem;
            border-radius: 3rem;
            font-weight: 500;
            transition: var(--transition-smooth);
        }

        .btn-outline-gold:hover {
            background: rgba(197, 160, 89, 0.1);
            color: #fff;
            border-color: var(--accent-amber);
        }

        .navbar {
            background-color: rgba(18, 18, 18, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(197, 160, 89, 0.15);
            padding: 0.9rem 0;
        }

        .navbar-brand {
            font-weight: 700;
            font-size: 1.7rem;
            color: var(--accent-amber) !important;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .navbar-brand i {
            font-size: 1.8rem;
            color: var(--accent-gold);
        }

        .nav-link {
            color: var(--text-muted) !important;
            font-weight: 500;
            margin: 0 0.3rem;
            transition: var(--transition-smooth);
            border-radius: 2rem;
            padding: 0.5rem 1.2rem !important;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--accent-amber) !important;
            background: rgba(197, 160, 89, 0.1);
        }

        .btn-nav-login {
            background: transparent;
            border: 1px solid var(--text-muted);
            color: var(--text-warm);
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-weight: 500;
            text-decoration: none;
            transition: var(--transition-smooth);
        }

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

        .btn-nav-signup {
            background: var(--accent-amber);
            border: none;
            color: #121212;
            font-weight: 600;
            padding: 0.5rem 1.7rem;
            border-radius: 2rem;
            text-decoration: none;
            transition: var(--transition-smooth);
            box-shadow: 0 2px 10px rgba(255, 191, 0, 0.4);
        }

        .btn-nav-signup:hover {
            background: #e6ac00;
            color: #000;
            transform: scale(1.03);
        }

        .hero-offer {
            background: radial-gradient(circle at 80% 20%, #2A2410, #121212 70%);
            padding: 5rem 0 4rem;
            position: relative;
            border-bottom: 1px solid var(--border-dim);
        }

        .offer-cover {
            background: linear-gradient(135deg, #1C1C1E, #0D0D0D);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-gold);
        }

        .metric-badge {
            background: #1E1E1E;
            border: 1px solid var(--border-dim);
            border-radius: 2.5rem;
            padding: 0.3rem 1.2rem;
            font-size: 0.9rem;
            color: var(--text-warm);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .card-promo {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            transition: var(--transition-smooth);
            height: 100%;
            position: relative;
        }

        .card-promo:hover {
            border-color: var(--accent-gold);
            box-shadow: 0 20px 35px -15px rgba(197, 160, 89, 0.15);
            transform: translateY(-4px);
        }

        .badge-vip {
            background: linear-gradient(145deg, #C5A059, #8B6914);
            color: #121212;
            font-weight: 700;
            padding: 0.2rem 0.9rem;
            border-radius: 1rem;
            font-size: 0.75rem;
            letter-spacing: 0.5px;
        }

        .step-indicator {
            width: 40px;
            height: 40px;
            background: var(--accent-amber);
            color: #121212;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: 1rem;
            padding: 1.5rem;
            margin-bottom: 1rem;
            transition: var(--transition-smooth);
        }

        .faq-item:hover {
            border-color: var(--accent-gold);
            background: #252527;
        }

        .footer {
            background: #0A0A0A;
            border-top: 1px solid #2C2C2E;
            padding: 3rem 0 2rem;
            font-size: 0.95rem;
        }

        .fab-left {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 50;
            background: rgba(18, 18, 18, 0.8);
            backdrop-filter: blur(15px);
            border: 1px solid var(--accent-gold);
            border-radius: 4rem;
            padding: 0.8rem;
            box-shadow: 0 0 25px rgba(197, 160, 89, 0.4);
            transition: var(--transition-smooth);
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .fab-left:hover {
            transform: scale(1.07);
            box-shadow: 0 0 35px rgba(255, 191, 0, 0.6);
        }

        .fab-left i {
            font-size: 1.6rem;
            color: var(--accent-amber);
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .navbar-collapse {
                background: rgba(18, 18, 18, 0.98);
                padding: 1.5rem;
                border-radius: 1rem;
                margin-top: 1rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #1A1A1A;
            --secondary-bg: #121212;
            --card-bg: #242424;
            --accent-gold: #F0E68C;
            --accent-silver: #E5E8E8;
            --accent-champagne: #D4AC0D;
            --text-white: #FFFFFF;
            --text-gray: #D5D8DC;
            --text-muted: #A0A0A0;
            --border-color: #333333;
            --btn-gradient: linear-gradient(135deg, #E5E8E8, #F0E68C);
            --card-shadow: 0 8px 32px rgba(0,0,0,0.4);
            --hover-glow: 0 0 20px rgba(240,230,140,0.3);
            --border-radius-lg: 20px;
            --border-radius-md: 14px;
            --border-radius-sm: 10px;
        }

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

        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: linear-gradient(180deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
        }

        /* Navbar Customization */
        .navbar {
            background: rgba(26, 26, 26, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 15px 0;
            transition: all 0.3s ease;
        }

        .navbar-brand {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-gold) !important;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-brand i {
            color: var(--accent-champagne);
            font-size: 1.8rem;
        }

        .nav-link {
            color: var(--text-gray) !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all 0.3s ease;
            margin: 0 4px;
        }

        .nav-link:hover {
            color: var(--accent-gold) !important;
            background: rgba(240, 230, 140, 0.08);
        }

        .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(240, 230, 140, 0.12);
            font-weight: 600;
        }

        .btn-nav-login {
            border: 1.5px solid var(--accent-silver);
            color: var(--accent-silver);
            background: transparent;
            padding: 8px 22px;
            border-radius: 25px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .btn-nav-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            box-shadow: var(--hover-glow);
        }

        .btn-nav-signup {
            background: var(--btn-gradient);
            color: #1A1A1A;
            padding: 9px 24px;
            border-radius: 25px;
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .btn-nav-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(240, 230, 140, 0.4);
            color: #1A1A1A;
        }

        /* Hero Section */
        .hero-section {
            background: linear-gradient(135deg, rgba(26,26,26,0.95) 0%, rgba(18,18,18,0.98) 100%), 
                        url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 100px 0 80px;
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 30% 50%, rgba(240,230,140,0.1) 0%, transparent 70%);
        }

        .offer-highlight-card {
            background: linear-gradient(135deg, #2A2A2A, #1F1F1F);
            border: 2px solid var(--accent-champagne);
            border-radius: var(--border-radius-lg);
            padding: 50px 40px;
            position: relative;
            box-shadow: var(--card-shadow), var(--hover-glow);
            transition: all 0.4s ease;
        }

        .offer-highlight-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(240,230,140,0.25);
        }

        .offer-badge {
            background: linear-gradient(135deg, var(--accent-champagne), var(--accent-gold));
            color: #1A1A1A;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 6px 18px;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 20px;
        }

        .offer-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
            margin-bottom: 20px;
        }

        .offer-desc {
            font-size: 1.15rem;
            color: var(--text-gray);
            margin-bottom: 30px;
            line-height: 1.7;
        }

        .btn-claim {
            background: var(--btn-gradient);
            color: #1A1A1A;
            font-weight: 800;
            font-size: 1.1rem;
            padding: 14px 40px;
            border-radius: 30px;
            border: none;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            letter-spacing: 0.5px;
        }

        .btn-claim:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(240,230,140,0.5);
            color: #1A1A1A;
        }

        /* Benefits Section */
        .benefits-section {
            padding: 80px 0;
            background: var(--secondary-bg);
        }

        .info-badge {
            background: rgba(240,230,140,0.1);
            color: var(--accent-gold);
            padding: 5px 15px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            display: inline-block;
            margin-bottom: 15px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 15px;
            text-align: left;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            text-align: left;
        }

        .benefit-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-md);
            padding: 35px 25px;
            transition: all 0.3s ease;
            height: 100%;
            text-align: left;
        }

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

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

        .benefit-card h4 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--accent-silver);
            margin-bottom: 12px;
        }

        .benefit-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* Promo Deals Section */
        .promo-deals-section {
            padding: 80px 0;
            background: var(--primary-bg);
        }

        .promo-card {
            background: linear-gradient(135deg, #252525, #1C1C1C);
            border: 1.5px solid var(--border-color);
            border-radius: var(--border-radius-lg);
            overflow: hidden;
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .promo-card:hover {
            border-color: var(--accent-champagne);
            box-shadow: var(--hover-glow);
        }

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

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

        .promo-tag {
            position: absolute;
            top: 15px;
            right: 15px;
            background: linear-gradient(135deg, var(--accent-champagne), var(--accent-gold));
            color: #1A1A1A;
            padding: 6px 14px;
            border-radius: 15px;
            font-weight: 700;
            font-size: 0.8rem;
        }

        .promo-card-body {
            padding: 25px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .promo-card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 10px;
        }

        .promo-card-text {
            color: var(--text-gray);
            font-size: 0.95rem;
            line-height: 1.6;
            flex: 1;
        }

        .promo-card-footer {
            padding: 0 25px 25px;
            margin-top: auto;
        }

        .btn-promo {
            background: transparent;
            border: 1.5px solid var(--accent-silver);
            color: var(--accent-silver);
            padding: 10px 25px;
            border-radius: 25px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            width: 100%;
            text-align: center;
        }

        .btn-promo:hover {
            background: var(--accent-silver);
            color: #1A1A1A;
            border-color: var(--accent-silver);
        }

        /* Stats Section */
        .stats-section {
            padding: 70px 0;
            background: linear-gradient(135deg, #1F1F1F, #181818);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .stat-item {
            text-align: left;
            padding: 20px;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 1rem;
            color: var(--text-muted);
            font-weight: 500;
        }

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

        .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            margin-bottom: 15px;
            border-radius: var(--border-radius-sm) !important;
            overflow: hidden;
        }

        .accordion-button {
            background: var(--card-bg);
            color: var(--text-white);
            font-weight: 600;
            font-size: 1.1rem;
            padding: 20px 25px;
            box-shadow: none !important;
            border: none;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(240,230,140,0.08);
            color: var(--accent-gold);
        }

        .accordion-button::after {
            filter: invert(0.8);
        }

        .accordion-body {
            background: var(--card-bg);
            color: var(--text-gray);
            padding: 20px 25px;
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(26,26,26,0.9), rgba(18,18,18,0.95)), 
                        url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            position: relative;
        }

        .cta-box {
            background: rgba(36,36,36,0.8);
            backdrop-filter: blur(15px);
            border: 1px solid var(--accent-champagne);
            border-radius: var(--border-radius-lg);
            padding: 50px 40px;
            box-shadow: var(--card-shadow);
        }

        .cta-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 15px;
            text-align: center;
        }

        .cta-text {
            color: var(--text-gray);
            font-size: 1.1rem;
            margin-bottom: 30px;
            text-align: center;
        }

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

        .footer h5 {
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.3s ease;
            margin-bottom: 8px;
        }

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

        .footer .badge {
            font-size: 0.8rem;
            padding: 6px 12px;
            margin-left: 5px;
        }

        /* FAB Button - Option 2: Cyber & Neon Style */
        .fab-button {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 28px;
            background: rgba(0,0,0,0.7);
            backdrop-filter: blur(10px);
            border: 2px solid;
            border-image: linear-gradient(135deg, #F0E68C, #E5E8E8) 1;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            opacity: 0.7;
            box-shadow: 0 0 20px rgba(240,230,140,0.3);
            animation: floatFAB 3s ease-in-out infinite;
        }

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

        .fab-button:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(240,230,140,0.6);
            border-image: linear-gradient(135deg, #E5E8E8, #FFFFFF) 1;
        }

        .fab-button i {
            color: var(--accent-gold);
            font-size: 1.5rem;
            transition: all 0.3s ease;
        }

        .fab-button:hover i {
            animation: glowPulse 0.8s ease-in-out;
        }

        @keyframes glowPulse {
            0%, 100% { text-shadow: 0 0 5px rgba(240,230,140,0.5); }
            50% { text-shadow: 0 0 20px rgba(240,230,140,0.9); }
        }

        /* Responsive */
        @media (max-width: 991px) {
            .offer-title {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .navbar .btn-nav-login,
            .navbar .btn-nav-signup {
                margin-top: 10px;
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 767px) {
            .hero-section {
                padding: 80px 0 60px;
            }
            .offer-highlight-card {
                padding: 30px 20px;
            }
            .offer-title {
                font-size: 1.7rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .benefit-card {
                padding: 25px 20px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .cta-box {
                padding: 30px 20px;
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .fab-button {
                width: 48px;
                height: 48px;
                left: 0.75rem;
                bottom: 5rem;
            }
        }

        @media (max-width: 520px) {
            .offer-title {
                font-size: 1.4rem;
            }
            .btn-claim {
                font-size: 0.95rem;
                padding: 12px 28px;
            }
        }