/* roulang page: index */
:root {
            --bg-primary: #0B0F1A;
            --bg-secondary: #111827;
            --bg-card: #1a1f2e;
            --accent-gold: #D4AF37;
            --accent-gold-light: #F0E68C;
            --accent-red: #C62828;
            --accent-emerald: #10B981;
            --text-primary: #F3F4F6;
            --text-secondary: #9CA3AF;
            --text-muted: #6B7280;
            --border-color: #2D3748;
            --border-gold: #D4AF37;
            --shadow-gold: 0 8px 32px rgba(212, 175, 55, 0.15);
            --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.5);
            --radius-xl: 1.5rem;
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --transition-base: all 0.3s ease;
        }

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

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

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

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

        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin: 0 auto;
        }

        /* Header & Navigation */
        .navbar-custom {
            background: rgba(11, 15, 26, 0.9);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            padding: 0.8rem 0;
            transition: var(--transition-base);
            z-index: 1030;
            position: sticky;
            top: 0;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            border-radius: var(--radius-sm);
            padding: 0.5rem 1rem !important;
            transition: var(--transition-base);
            position: relative;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(212, 175, 55, 0.08);
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold) !important;
            font-weight: 600;
            padding: 0.6rem 1.5rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .btn-login:hover {
            background: rgba(212, 175, 55, 0.15);
            border-color: var(--accent-gold-light);
            color: var(--accent-gold-light) !important;
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            border: none;
            color: #0B0F1A !important;
            font-weight: 700;
            padding: 0.6rem 1.8rem;
            border-radius: 50px;
            box-shadow: 0 4px 14px rgba(212, 175, 55, 0.35);
            transition: var(--transition-base);
            letter-spacing: 0.3px;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 175, 55, 0.5);
            background: linear-gradient(135deg, #E0B840, #C69C3A);
            color: #000 !important;
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            color: var(--text-primary);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(212, 175, 55, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            padding: 5rem 0 6rem;
            background: linear-gradient(125deg, #0B0F1A 0%, #111B2D 50%, #0D1520 100%);
            overflow: hidden;
        }

        .hero-bg-image {
            position: absolute;
            right: -10%;
            top: 0;
            width: 55%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.jpg') no-repeat center right;
            background-size: cover;
            opacity: 0.25;
            mask-image: linear-gradient(to left, rgba(0,0,0,0.8) 0%, transparent 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.8) 0%, transparent 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            background: rgba(212, 175, 55, 0.15);
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold-light);
            padding: 0.4rem 1.2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 1.5rem;
        }

        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            background: linear-gradient(to right, #FFFFFF, #E5E8E8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 2rem;
        }

        .hero-stats {
            display: flex;
            gap: 2rem;
            margin-top: 2.5rem;
        }

        .stat-item {
            background: rgba(255,255,255,0.03);
            border-radius: var(--radius-lg);
            padding: 1rem 1.5rem;
            border: 1px solid var(--border-color);
            backdrop-filter: blur(8px);
        }

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

        /* Section common */
        .section-title {
            font-weight: 700;
            font-size: 2.2rem;
            margin-bottom: 0.75rem;
            color: #FFFFFF;
            position: relative;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 700px;
            margin-bottom: 2.5rem;
        }

        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            transition: var(--transition-base);
            overflow: hidden;
        }

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

        .btn-primary-gold {
            background: var(--accent-gold);
            border: none;
            color: #0B0F1A;
            font-weight: 700;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .btn-primary-gold:hover {
            background: #E0B840;
            color: #000;
            box-shadow: 0 6px 20px rgba(212, 175, 55, 0.5);
        }

        .btn-outline-gold {
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            background: transparent;
            font-weight: 600;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .btn-outline-gold:hover {
            background: rgba(212, 175, 55, 0.1);
            color: var(--accent-gold-light);
        }

        /* Floating CTA bar */
        .floating-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: rgba(11, 15, 26, 0.95);
            backdrop-filter: blur(20px);
            border-top: 1px solid var(--accent-gold);
            padding: 0.8rem 0;
            z-index: 1020;
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 1.5rem;
        }

        .fab-left {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 1040;
            width: 56px;
            height: 56px;
            background: radial-gradient(circle at 30% 30%, #2C2C2C, #0B0F1A);
            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: 0 8px 22px rgba(212, 175, 55, 0.3);
            transition: var(--transition-base);
            animation: floatChip 3s infinite;
        }

        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 12px 28px rgba(212, 175, 55, 0.5);
        }

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

        .notification-dot {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid #0B0F1A;
            animation: blink 1.5s infinite;
        }

        @keyframes blink {
            0% { opacity: 1; }
            50% { opacity: 0.3; }
            100% { opacity: 1; }
        }

        footer {
            background: #070A12;
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.4rem;
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: 1rem;
            }
            .navbar-brand {
                font-size: 1.2rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B0F1A;
            --bg-secondary: #111827;
            --bg-card: #1a1f2e;
            --accent-gold: #D4AF37;
            --accent-gold-light: #F0E68C;
            --accent-red: #C62828;
            --accent-emerald: #10B981;
            --text-primary: #F3F4F6;
            --text-secondary: #9CA3AF;
            --text-muted: #6B7280;
            --border-color: #2D3748;
            --border-gold: #D4AF37;
            --shadow-gold: 0 8px 32px rgba(212, 175, 55, 0.15);
            --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.5);
            --radius-xl: 1.5rem;
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --transition-base: all 0.3s ease;
        }
        
        * {
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin: 0 auto;
        }
        
        /* Header & Navigation */
        .navbar-custom {
            background: rgba(11, 15, 26, 0.95);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            padding: 0.8rem 0;
            transition: var(--transition-base);
            z-index: 1030;
            position: sticky;
            top: 0;
        }
        
        .navbar-brand {
            font-weight: 800;
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        
        .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            border-radius: var(--radius-sm);
            padding: 0.5rem 1rem !important;
            transition: var(--transition-base);
            position: relative;
        }
        
        .nav-link:hover,
        .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(212, 175, 55, 0.08);
        }
        
        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold) !important;
            font-weight: 600;
            padding: 0.6rem 1.5rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }
        
        .btn-login:hover {
            background: rgba(212, 175, 55, 0.15);
            border-color: var(--accent-gold-light);
            color: var(--accent-gold-light) !important;
        }
        
        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            border: none;
            color: #0B0F1A !important;
            font-weight: 700;
            padding: 0.6rem 1.8rem;
            border-radius: 50px;
            box-shadow: 0 4px 14px rgba(212, 175, 55, 0.35);
            transition: var(--transition-base);
            letter-spacing: 0.3px;
        }
        
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 175, 55, 0.5);
            background: linear-gradient(135deg, #E0B840, #C69C3A);
            color: #000 !important;
        }
        
        .navbar-toggler {
            border: 1px solid var(--border-color);
            color: var(--text-primary);
        }
        
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(212, 175, 55, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        
        /* Page Banner */
        .page-banner {
            position: relative;
            padding: 4rem 0;
            background: linear-gradient(125deg, #0B0F1A 0%, #111B2D 50%, #0D1520 100%);
            overflow: hidden;
        }
        
        .banner-bg {
            position: absolute;
            right: -5%;
            top: 0;
            width: 50%;
            height: 100%;
            background: url('/assets/images/backpic/back-2.jpg') no-repeat center right;
            background-size: cover;
            opacity: 0.2;
            mask-image: linear-gradient(to left, rgba(0,0,0,0.8) 0%, transparent 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.8) 0%, transparent 100%);
        }
        
        .banner-content {
            position: relative;
            z-index: 2;
        }
        
        .banner-badge {
            background: rgba(212, 175, 55, 0.15);
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold-light);
            padding: 0.4rem 1.2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 1.5rem;
        }
        
        .banner-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
        }
        
        .banner-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 650px;
            margin-bottom: 2rem;
        }
        
        .btn-primary-gold {
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            border: none;
            color: #0B0F1A !important;
            font-weight: 700;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-size: 1.1rem;
            box-shadow: 0 4px 14px rgba(212, 175, 55, 0.35);
            transition: var(--transition-base);
            display: inline-block;
        }
        
        .btn-primary-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 175, 55, 0.5);
            background: linear-gradient(135deg, #E0B840, #C69C3A);
        }
        
        /* Section Styles */
        section {
            padding: 4rem 0;
        }
        
        .section-header {
            margin-bottom: 3rem;
        }
        
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
        }
        
        .section-header p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 750px;
        }
        
        /* Offer Cards */
        .offer-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 2rem;
            transition: var(--transition-base);
            position: relative;
            height: 100%;
            overflow: hidden;
        }
        
        .offer-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }
        
        .offer-tag {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: var(--accent-red);
            color: #fff;
            padding: 0.3rem 0.9rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            z-index: 3;
        }
        
        .offer-icon {
            font-size: 2.5rem;
            color: var(--accent-gold);
            margin-bottom: 1.5rem;
        }
        
        .offer-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
        }
        
        .offer-amount {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }
        
        .offer-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }
        
        .offer-features {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem;
        }
        
        .offer-features li {
            color: var(--text-secondary);
            padding: 0.4rem 0;
            font-size: 0.9rem;
            padding-left: 1.5rem;
            position: relative;
        }
        
        .offer-features li::before {
            content: '✓';
            color: var(--accent-emerald);
            position: absolute;
            left: 0;
            font-weight: 700;
        }
        
        .btn-outline-gold {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold) !important;
            font-weight: 600;
            padding: 0.7rem 1.8rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }
        
        .btn-outline-gold:hover {
            background: rgba(212, 175, 55, 0.12);
            border-color: var(--accent-gold-light);
            color: var(--accent-gold-light) !important;
        }
        
        /* Step Cards */
        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem;
            text-align: left;
            transition: var(--transition-base);
            position: relative;
        }
        
        .step-number {
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            color: #0B0F1A;
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
        }
        
        .step-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text-primary);
        }
        
        .step-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        
        /* FAQ */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            margin-bottom: 1rem;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition-base);
        }
        
        .faq-question:hover {
            background: rgba(212, 175, 55, 0.05);
        }
        
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        
        .faq-item.active .faq-answer {
            display: block;
        }
        
        .faq-item.active .faq-question {
            color: var(--accent-gold);
        }
        
        /* Footer */
        footer {
            background: var(--bg-secondary);
            padding: 3rem 0 1.5rem;
            border-top: 1px solid var(--border-color);
        }
        
        footer h5, footer h6 {
            color: #fff;
        }
        
        footer a {
            transition: var(--transition-base);
        }
        
        footer a:hover {
            color: var(--accent-gold) !important;
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .banner-title { font-size: 2.2rem; }
            .section-header h2 { font-size: 1.8rem; }
        }
        
        @media (max-width: 768px) {
            .banner-title { font-size: 1.8rem; }
            section { padding: 2.5rem 0; }
            .offer-card { margin-bottom: 1.5rem; }
            .navbar-brand { font-size: 1.3rem; }
            .btn-login, .btn-signup { padding: 0.5rem 1rem; font-size: 0.9rem; }
        }
        
        @media (max-width: 520px) {
            .banner-title { font-size: 1.5rem; }
            .btn-primary-gold { padding: 0.7rem 1.5rem; font-size: 1rem; }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B0F1A;
            --bg-secondary: #111827;
            --bg-card: #1a1f2e;
            --accent-gold: #D4AF37;
            --accent-gold-light: #F0E68C;
            --accent-red: #C62828;
            --accent-emerald: #10B981;
            --text-primary: #F3F4F6;
            --text-secondary: #9CA3AF;
            --text-muted: #6B7280;
            --border-color: #2D3748;
            --border-gold: #D4AF37;
            --shadow-gold: 0 8px 32px rgba(212, 175, 55, 0.15);
            --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.5);
            --radius-xl: 1.5rem;
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --transition-base: all 0.3s ease;
        }

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

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

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

        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin: 0 auto;
        }

        .navbar-custom {
            background: rgba(11, 15, 26, 0.9);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            padding: 0.8rem 0;
            transition: var(--transition-base);
            z-index: 1030;
            position: sticky;
            top: 0;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            border-radius: var(--radius-sm);
            padding: 0.5rem 1rem !important;
            transition: var(--transition-base);
            position: relative;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(212, 175, 55, 0.08);
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold) !important;
            font-weight: 600;
            padding: 0.6rem 1.5rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .btn-login:hover {
            background: rgba(212, 175, 55, 0.15);
            border-color: var(--accent-gold-light);
            color: var(--accent-gold-light) !important;
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            border: none;
            color: #0B0F1A !important;
            font-weight: 700;
            padding: 0.6rem 1.8rem;
            border-radius: 50px;
            box-shadow: 0 4px 14px rgba(212, 175, 55, 0.35);
            transition: var(--transition-base);
            letter-spacing: 0.3px;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 175, 55, 0.5);
            background: linear-gradient(135deg, #E0B840, #C69C3A);
            color: #000 !important;
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            color: var(--text-primary);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(212, 175, 55, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .article-banner {
            position: relative;
            padding: 4rem 0 3rem;
            background: linear-gradient(135deg, #0B0F1A 0%, #1a2035 100%);
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }

        .article-banner::before {
            content: '';
            position: absolute;
            right: -5%;
            top: 0;
            width: 45%;
            height: 100%;
            background: url('/assets/images/coverpic/cover-1.jpg') no-repeat center right;
            background-size: cover;
            opacity: 0.15;
            mask-image: linear-gradient(to left, rgba(0,0,0,0.6) 30%, transparent 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.6) 30%, transparent 100%);
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 1rem;
        }

        .article-category-badge {
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            color: #0B0F1A;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 0.35rem 1.2rem;
            border-radius: 50px;
            letter-spacing: 0.3px;
        }

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

        .article-h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1.5rem;
            background: linear-gradient(to right, #FFFFFF, #E5E8E8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            position: relative;
            z-index: 2;
        }

        .article-body-wrapper {
            padding: 3rem 0 4rem;
            background: var(--bg-primary);
        }

        .article-content {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            box-shadow: var(--shadow-lg);
        }

        .article-content h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent-gold-light);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid rgba(212, 175, 55, 0.25);
        }

        .article-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }

        .article-content p {
            color: var(--text-secondary);
            margin-bottom: 1.2rem;
            line-height: 1.7;
            font-size: 1.05rem;
        }

        .article-content ul,
        .article-content ol {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            padding-left: 1.5rem;
        }

        .article-content li {
            margin-bottom: 0.5rem;
            line-height: 1.6;
        }

        .article-content strong {
            color: var(--accent-gold-light);
            font-weight: 600;
        }

        .article-content a {
            color: var(--accent-gold);
            text-decoration: underline;
        }

        .article-content a:hover {
            color: var(--accent-gold-light);
        }

        .article-content blockquote {
            background: rgba(212, 175, 55, 0.06);
            border-left: 4px solid var(--accent-gold);
            padding: 1.2rem 1.8rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-content img {
            border-radius: var(--radius-lg);
            margin: 1.5rem 0;
        }

        .not-found-state {
            text-align: center;
            padding: 5rem 2rem;
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-color);
        }

        .not-found-state i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .not-found-state h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .not-found-state p {
            color: var(--text-secondary);
            margin-bottom: 2rem;
            font-size: 1.1rem;
        }

        .related-articles {
            padding: 3rem 0 5rem;
            background: var(--bg-secondary);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 2rem;
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-base);
            height: 100%;
        }

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

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

        .related-card-body {
            padding: 1.5rem;
        }

        .related-card-title {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }

        .related-card-link {
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 0.9rem;
        }

        .related-card-link:hover {
            color: var(--accent-gold-light);
        }

        .cta-strip {
            background: linear-gradient(135deg, #B8860B, #D4AF37);
            padding: 1.5rem 2rem;
            border-radius: var(--radius-xl);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 3rem;
            box-shadow: 0 12px 30px rgba(212, 175, 55, 0.3);
        }

        .cta-strip-text {
            font-weight: 700;
            font-size: 1.2rem;
            color: #0B0F1A;
        }

        .cta-strip .btn-cta-strip {
            background: #0B0F1A;
            color: var(--accent-gold-light) !important;
            font-weight: 700;
            padding: 0.7rem 2rem;
            border-radius: 50px;
            border: none;
            transition: var(--transition-base);
        }

        .cta-strip .btn-cta-strip:hover {
            background: #1a1f2e;
            transform: scale(1.05);
        }

        footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
            color: var(--text-muted);
        }

        footer a {
            color: var(--text-secondary);
            text-decoration: none;
        }

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

        footer .badge {
            background: rgba(255,255,255,0.08);
            color: var(--text-secondary);
            font-weight: 600;
            padding: 0.4rem 0.8rem;
            border-radius: 50px;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #0B0F1A, #1a1f2e);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.5rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
            transition: var(--transition-base);
            animation: floatGlow 2.5s ease-in-out infinite;
        }

        .fab-floating:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(212, 175, 55, 0.55);
            color: var(--accent-gold-light);
        }

        @keyframes floatGlow {
            0%, 100% { box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3); }
            50% { box-shadow: 0 8px 32px rgba(212, 175, 55, 0.5); }
        }

        @media (max-width: 992px) {
            .article-h1 {
                font-size: 2rem;
            }
            .article-content {
                padding: 1.5rem;
            }
            .article-banner::before {
                width: 80%;
                opacity: 0.08;
            }
        }

        @media (max-width: 768px) {
            .navbar-brand {
                font-size: 1.3rem;
            }
            .article-h1 {
                font-size: 1.6rem;
            }
            .article-content h2 {
                font-size: 1.4rem;
            }
            .article-content h3 {
                font-size: 1.2rem;
            }
            .cta-strip {
                flex-direction: column;
                text-align: center;
            }
            .fab-floating {
                left: 1rem;
                bottom: 5rem;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0B0F1A;
            --bg-secondary: #111827;
            --bg-card: #1a1f2e;
            --accent-gold: #D4AF37;
            --accent-gold-light: #F0E68C;
            --accent-red: #C62828;
            --accent-emerald: #10B981;
            --text-primary: #F3F4F6;
            --text-secondary: #9CA3AF;
            --text-muted: #6B7280;
            --border-color: #2D3748;
            --border-gold: #D4AF37;
            --shadow-gold: 0 8px 32px rgba(212, 175, 55, 0.15);
            --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.5);
            --radius-xl: 1.5rem;
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --transition-base: all 0.3s ease;
        }

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

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

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

        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin: 0 auto;
        }

        /* Header & Navigation */
        .navbar-custom {
            background: rgba(11, 15, 26, 0.9);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            padding: 0.8rem 0;
            transition: var(--transition-base);
            z-index: 1030;
            position: sticky;
            top: 0;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            border-radius: var(--radius-sm);
            padding: 0.5rem 1rem !important;
            transition: var(--transition-base);
            position: relative;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--accent-gold) !important;
            background: rgba(212, 175, 55, 0.08);
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold) !important;
            font-weight: 600;
            padding: 0.6rem 1.5rem;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .btn-login:hover {
            background: rgba(212, 175, 55, 0.15);
            border-color: var(--accent-gold-light);
            color: var(--accent-gold-light) !important;
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            border: none;
            color: #0B0F1A !important;
            font-weight: 700;
            padding: 0.6rem 1.8rem;
            border-radius: 50px;
            box-shadow: 0 4px 14px rgba(212, 175, 55, 0.35);
            transition: var(--transition-base);
            letter-spacing: 0.3px;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 175, 55, 0.5);
            background: linear-gradient(135deg, #E0B840, #C69C3A);
            color: #000 !important;
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            color: var(--text-primary);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(212, 175, 55, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Category Page Hero - Bonus Registration */
        .category-hero {
            position: relative;
            padding: 4.5rem 0 5rem;
            background: linear-gradient(135deg, #0F1A2E 0%, #162238 50%, #0B1320 100%);
            overflow: hidden;
        }

        .category-hero-bg {
            position: absolute;
            right: -5%;
            top: 50%;
            transform: translateY(-50%);
            width: 48%;
            height: 90%;
            background: url('/assets/images/backpic/back-2.jpg') no-repeat center;
            background-size: cover;
            opacity: 0.18;
            mask-image: linear-gradient(to left, rgba(0,0,0,0.7) 0%, transparent 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.7) 0%, transparent 100%);
            border-radius: var(--radius-xl);
        }

        .category-hero-content {
            position: relative;
            z-index: 2;
        }

        .category-badge {
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid var(--accent-emerald);
            color: var(--accent-emerald);
            padding: 0.4rem 1.2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 1.5rem;
        }

        .category-hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            color: var(--text-primary);
        }

        .category-hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 2rem;
        }

        .hero-cta-form {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            align-items: center;
        }

        .hero-input-field {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.8rem 1.5rem;
            color: var(--text-primary);
            min-width: 260px;
            transition: var(--transition-base);
            font-size: 0.95rem;
        }

        .hero-input-field:focus {
            outline: none;
            border-color: var(--accent-gold);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
        }

        .btn-hero-cta {
            background: linear-gradient(135deg, #10B981, #059669);
            border: none;
            color: #fff !important;
            font-weight: 700;
            padding: 0.8rem 2.2rem;
            border-radius: 50px;
            box-shadow: 0 4px 18px rgba(16, 185, 129, 0.4);
            transition: var(--transition-base);
            font-size: 1rem;
            letter-spacing: 0.3px;
        }

        .btn-hero-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(16, 185, 129, 0.6);
            background: linear-gradient(135deg, #34D399, #10B981);
        }

        /* Value Proposition Section */
        .value-section {
            padding: 4rem 0;
            background: var(--bg-secondary);
        }

        .section-label {
            color: var(--accent-gold);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            font-size: 0.85rem;
            margin-bottom: 0.8rem;
        }

        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .value-item {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 2rem;
            border: 1px solid var(--border-color);
            transition: var(--transition-base);
            height: 100%;
            text-align: left;
        }

        .value-item:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }

        .value-icon {
            width: 56px;
            height: 56px;
            background: rgba(16, 185, 129, 0.12);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            font-size: 1.6rem;
            color: var(--accent-emerald);
        }

        .value-item h4 {
            font-weight: 700;
            font-size: 1.25rem;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
        }

        .value-item p {
            color: var(--text-secondary);
            margin-bottom: 0;
            font-size: 0.95rem;
        }

        /* Process Steps */
        .steps-section {
            padding: 4rem 0;
            background: var(--bg-primary);
        }

        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 2rem 1.8rem;
            border: 1px solid var(--border-color);
            height: 100%;
            position: relative;
            transition: var(--transition-base);
        }

        .step-number {
            font-size: 3rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            opacity: 0.3;
            line-height: 1;
            margin-bottom: 0.5rem;
        }

        .step-card h4 {
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
        }

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

        /* Game Showcase */
        .game-showcase-section {
            padding: 4rem 0;
            background: var(--bg-secondary);
        }

        .game-card-custom {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition-base);
            height: 100%;
        }

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

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

        .game-tag {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--accent-red);
            color: #fff;
            padding: 0.25rem 0.8rem;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .game-card-body {
            padding: 1.5rem;
        }

        .game-card-body h5 {
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .game-card-body p {
            color: var(--text-muted);
            font-size: 0.88rem;
            margin-bottom: 0;
        }

        /* FAQ Section */
        .faq-section {
            padding: 4rem 0;
            background: var(--bg-primary);
        }

        .accordion-button-custom {
            background: var(--bg-card) !important;
            color: var(--text-primary) !important;
            border: 1px solid var(--border-color) !important;
            border-radius: var(--radius-md) !important;
            padding: 1.2rem 1.5rem !important;
            font-weight: 600;
            font-size: 1.05rem;
            transition: var(--transition-base);
            box-shadow: none !important;
            margin-bottom: 0.8rem;
        }

        .accordion-button-custom:not(.collapsed) {
            background: rgba(212, 175, 55, 0.08) !important;
            border-color: var(--accent-gold) !important;
            color: var(--accent-gold-light) !important;
        }

        .accordion-button-custom::after {
            filter: invert(70%) sepia(60%) saturate(400%) hue-rotate(2deg) brightness(90%);
        }

        .accordion-body-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-top: none;
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            padding: 1.2rem 1.5rem;
            color: var(--text-secondary);
            margin-top: -0.8rem;
            margin-bottom: 0.8rem;
        }

        /* CTA Section */
        .cta-section {
            padding: 4rem 0;
            background: linear-gradient(135deg, #1A2A3E 0%, #0F1A2E 100%);
        }

        .cta-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-gold);
            text-align: center;
        }

        .cta-card h3 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .cta-card p {
            color: var(--text-secondary);
            margin-bottom: 2rem;
            font-size: 1.1rem;
        }

        .btn-cta-primary {
            background: linear-gradient(135deg, var(--accent-gold), #B8860B);
            border: none;
            color: #0B0F1A !important;
            font-weight: 700;
            padding: 0.9rem 2.5rem;
            border-radius: 50px;
            font-size: 1.1rem;
            box-shadow: 0 6px 20px rgba(212, 175, 55, 0.45);
            transition: var(--transition-base);
        }

        .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(212, 175, 55, 0.65);
            background: linear-gradient(135deg, #E0B840, #C69C3A);
            color: #000 !important;
        }

        /* Footer */
        footer {
            background: #0A0D18;
            padding: 2.5rem 0 1.5rem;
            border-top: 1px solid var(--border-color);
            color: var(--text-muted);
        }

        footer h5,
        footer h6 {
            color: var(--text-primary);
            margin-bottom: 0.8rem;
        }

        footer a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

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

        footer .badge {
            font-size: 0.75rem;
            padding: 0.35em 0.75em;
        }

        hr {
            border-color: var(--border-color);
            opacity: 0.5;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-hero-title {
                font-size: 2.5rem;
            }
            .section-title {
                font-size: 2rem;
            }
            .category-hero-bg {
                width: 60%;
                right: -15%;
            }
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 3rem 0;
            }
            .category-hero-title {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .category-hero-bg {
                width: 80%;
                right: -25%;
                opacity: 0.1;
            }
            .hero-cta-form {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-input-field {
                min-width: auto;
            }
            .navbar-brand {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .category-hero-title {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cta-card {
                padding: 2rem 1.5rem;
            }
            .cta-card h3 {
                font-size: 1.5rem;
            }
        }