/* roulang page: index */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --bg-card: #083B2A;
            --accent-amber: #F59E0B;
            --accent-amber-light: #FCD34D;
            --accent-green: #10B981;
            --accent-green-light: #34D399;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6EE7B7;
            --text-dark: #064E3B;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-gold: rgba(245, 158, 11, 0.35);
            --glass-bg: rgba(8, 59, 42, 0.65);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.25);
            --shadow-neon: 0 4px 20px rgba(16, 185, 129, 0.3);
            --radius-sm: 0.75rem;
            --radius-md: 1.25rem;
            --radius-lg: 2rem;
            --radius-xl: 3rem;
            --font-heading: 'Playfair Display', 'Inter', serif;
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.02em;
        }

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

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

        button, .btn {
            font-family: var(--font-body);
            cursor: pointer;
            transition: var(--transition-bounce);
            outline: none;
        }

        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-amber);
            outline-offset: 3px;
            border-radius: 0.5rem;
        }

        ::selection {
            background: var(--accent-amber);
            color: var(--bg-primary);
        }

        /* Container */
        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 1400px) {
            .container-custom {
                max-width: 1340px;
            }
        }

        /* Navigation */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            padding: 0.85rem 1.5rem;
            background: rgba(3, 26, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
            transition: var(--transition-base);
        }

        .navbar-custom .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1340px;
            margin: 0 auto;
        }

        .navbar-custom .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-amber);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            line-height: 1.2;
            transition: var(--transition-base);
        }

        .navbar-custom .logo:hover {
            color: var(--accent-amber-light);
            transform: scale(1.02);
        }

        .navbar-custom .logo i {
            font-size: 1.6rem;
            color: var(--accent-green);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            position: relative;
            padding: 0.5rem 0;
            letter-spacing: 0.01em;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-amber);
            border-radius: 4px;
            transition: width 0.3s ease;
        }

        .nav-links a:hover, .nav-links a.active {
            color: var(--accent-amber);
        }

        .nav-links a:hover::after, .nav-links a.active::after {
            width: 100%;
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.85rem;
        }

        .nav-auth .btn-login {
            background: transparent;
            border: 1.5px solid var(--border-gold);
            color: var(--accent-amber);
            padding: 0.55rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

        .nav-auth .btn-login:hover {
            background: rgba(245, 158, 11, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber-light);
            box-shadow: var(--shadow-gold);
        }

        .nav-auth .btn-signup {
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            border: none;
            color: var(--bg-primary);
            padding: 0.6rem 1.7rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            letter-spacing: 0.01em;
        }

        .nav-auth .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.45);
            background: linear-gradient(135deg, var(--accent-amber-light) 0%, #F59E0B 100%);
            color: #000;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--accent-amber);
            font-size: 1.7rem;
            cursor: pointer;
            padding: 0.4rem;
            transition: var(--transition-base);
        }

        .mobile-menu-toggle:hover {
            color: var(--accent-amber-light);
        }

        @media (max-width: 992px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(6, 46, 32, 0.98);
                backdrop-filter: blur(30px);
                flex-direction: column;
                padding: 5rem 2rem 2rem;
                gap: 1.8rem;
                transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                box-shadow: -5px 0 40px rgba(0, 0, 0, 0.6);
                z-index: 1060;
                border-left: 1px solid var(--border-subtle);
            }

            .nav-links.active {
                right: 0;
            }

            .nav-auth {
                gap: 0.6rem;
            }

            .nav-auth .btn-login, .nav-auth .btn-signup {
                padding: 0.5rem 1rem;
                font-size: 0.82rem;
            }

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

        /* Hero */
        .hero-section {
            position: relative;
            padding: 8rem 1.5rem 5rem;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: radial-gradient(ellipse at 40% 30%, rgba(16, 185, 129, 0.12) 0%, transparent 65%),
                        radial-gradient(ellipse at 70% 60%, rgba(245, 158, 11, 0.1) 0%, transparent 55%);
            background-color: var(--bg-primary);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 15%;
            right: -5%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            max-width: 600px;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid var(--border-gold);
            color: var(--accent-amber);
            padding: 0.4rem 1.1rem;
            border-radius: 3rem;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 1.5rem;
        }

        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 1.2rem;
            line-height: 1.15;
        }

        .hero-content h1 span {
            background: linear-gradient(135deg, var(--accent-amber) 0%, var(--accent-amber-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content .hero-desc {
            font-size: 1.08rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.7;
            max-width: 530px;
        }

        .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-bottom: 2.2rem;
        }

        .hero-stat-item h4 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--accent-amber);
            margin-bottom: 0.2rem;
        }

        .hero-stat-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-hero-primary {
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            border: none;
            color: var(--bg-primary);
            padding: 0.85rem 2.2rem;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-gold);
            letter-spacing: 0.01em;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(245, 158, 11, 0.5);
            background: linear-gradient(135deg, var(--accent-amber-light) 0%, #F59E0B 100%);
            color: #000;
        }

        .btn-hero-outline {
            background: transparent;
            border: 2px solid var(--border-gold);
            color: var(--accent-amber);
            padding: 0.8rem 2rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-hero-outline:hover {
            background: rgba(245, 158, 11, 0.08);
            border-color: var(--accent-amber);
            color: var(--accent-amber-light);
            box-shadow: var(--shadow-gold);
        }

        .hero-visual {
            position: relative;
            z-index: 1;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-visual img {
            max-width: 450px;
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(16, 185, 129, 0.2);
            border: 1px solid var(--border-subtle);
        }

        @media (max-width: 992px) {
            .hero-section {
                padding: 7rem 1.5rem 3.5rem;
                min-height: auto;
                text-align: center;
            }

            .hero-content {
                max-width: 100%;
                margin-bottom: 2.5rem;
            }

            .hero-content h1 {
                font-size: 2.4rem;
            }

            .hero-content .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }

            .hero-stats {
                justify-content: center;
                gap: 1.8rem;
            }

            .hero-buttons {
                justify-content: center;
            }

            .hero-visual img {
                max-width: 300px;
            }
        }

        /* Section Common */
        .section-padding {
            padding: 5rem 1.5rem;
        }

        .section-label {
            display: inline-block;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-amber);
            margin-bottom: 0.8rem;
            background: rgba(245, 158, 11, 0.1);
            padding: 0.3rem 1rem;
            border-radius: 3rem;
            border: 1px solid var(--border-gold);
        }

        .section-title {
            font-size: 2.3rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.7;
            margin-bottom: 2.5rem;
        }

        /* Cards */
        .card-custom {
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 2rem;
            transition: var(--transition-bounce);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            height: 100%;
        }

        .card-custom:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-neon), 0 12px 32px rgba(0, 0, 0, 0.35);
            border-color: rgba(16, 185, 129, 0.45);
        }

        .card-icon {
            width: 60px;
            height: 60px;
            background: rgba(16, 185, 129, 0.15);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--accent-green);
            margin-bottom: 1.3rem;
            transition: var(--transition-base);
        }

        .card-custom:hover .card-icon {
            background: rgba(16, 185, 129, 0.25);
            color: var(--accent-green-light);
        }

        .card-custom h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.7rem;
        }

        .card-custom p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Glass Card */
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }

        /* Badge */
        .badge-pill {
            display: inline-block;
            padding: 0.35rem 1rem;
            border-radius: 3rem;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        .badge-gold {
            background: rgba(245, 158, 11, 0.2);
            color: var(--accent-amber);
            border: 1px solid var(--border-gold);
        }

        .badge-green {
            background: rgba(16, 185, 129, 0.2);
            color: var(--accent-green);
            border: 1px solid var(--border-subtle);
        }

        /* Check list */
        .check-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .check-list li i {
            color: var(--accent-green);
            font-size: 1.3rem;
            margin-top: 0.15rem;
            flex-shrink: 0;
        }

        /* Stats Row */
        .stats-row {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            justify-content: space-between;
        }

        .stats-item {
            text-align: center;
            min-width: 120px;
            flex: 1;
        }

        .stats-item .number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-amber);
            line-height: 1;
            margin-bottom: 0.4rem;
        }

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

        /* Compliance Badges */
        .compliance-grid {
            display: flex;
            gap: 2.5rem;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
        }

        .compliance-item {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            background: rgba(255,255,255,0.04);
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
        }

        .compliance-item i {
            font-size: 1.6rem;
            color: var(--accent-green);
        }

        /* Testimonial */
        .testimonial-card {
            background: var(--glass-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 2rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }

        .testimonial-card .quote-icon {
            font-size: 2.5rem;
            color: var(--accent-amber);
            opacity: 0.6;
            line-height: 1;
        }

        .testimonial-card p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.7;
            font-style: italic;
        }

        .testimonial-card .author {
            font-weight: 700;
            color: var(--accent-amber);
            margin-top: 1rem;
        }

        /* FAQ */
        .accordion-custom .accordion-item {
            background: transparent;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: 1rem;
            overflow: hidden;
        }

        .accordion-custom .accordion-header button {
            background: var(--glass-bg);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            box-shadow: none;
            padding: 1.2rem 1.5rem;
        }

        .accordion-custom .accordion-header button:not(.collapsed) {
            background: rgba(16, 185, 129, 0.12);
            color: var(--accent-green);
        }

        .accordion-custom .accordion-body {
            background: rgba(3, 26, 18, 0.6);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            padding: 1.2rem 1.5rem;
        }

        /* Article List */
        .article-list-item {
            display: flex;
            gap: 1.2rem;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-subtle);
            align-items: flex-start;
            transition: var(--transition-base);
        }

        .article-list-item:hover {
            background: rgba(255,255,255,0.02);
            padding-left: 0.6rem;
            border-radius: var(--radius-sm);
        }

        .article-thumb {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .article-info h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }

        .article-info .date {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Footer */
        .footer-custom {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 1.5rem 1.5rem;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-amber);
            margin-bottom: 0.6rem;
        }

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

        .footer-links a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 1.2rem;
            margin-top: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* FAB */
        .fab-custom {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 1040;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            border: 2px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-amber);
            box-shadow: 0 6px 25px rgba(245, 158, 11, 0.35);
            cursor: pointer;
            transition: var(--transition-bounce);
            animation: floatFAB 3s ease-in-out infinite;
        }

        .fab-custom:hover {
            transform: scale(1.1);
            box-shadow: 0 10px 30px rgba(245, 158, 11, 0.55);
            border-color: var(--accent-amber);
        }

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

        /* Responsive */
        @media (max-width: 768px) {
            .section-padding {
                padding: 3.5rem 1rem;
            }

            .section-title {
                font-size: 1.8rem;
            }

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

            .stats-row {
                gap: 1.5rem;
            }

            .stats-item .number {
                font-size: 1.8rem;
            }

            .card-custom {
                padding: 1.5rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --bg-card: #083B2A;
            --accent-amber: #F59E0B;
            --accent-amber-light: #FCD34D;
            --accent-green: #10B981;
            --accent-green-light: #34D399;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6EE7B7;
            --text-dark: #064E3B;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-gold: rgba(245, 158, 11, 0.35);
            --glass-bg: rgba(8, 59, 42, 0.65);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.25);
            --shadow-neon: 0 4px 20px rgba(16, 185, 129, 0.3);
            --radius-sm: 0.75rem;
            --radius-md: 1.25rem;
            --radius-lg: 2rem;
            --radius-xl: 3rem;
            --font-heading: 'Playfair Display', 'Inter', serif;
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 80px;
        }

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

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

        button, .btn {
            font-family: var(--font-body);
            cursor: pointer;
            transition: var(--transition-bounce);
            outline: none;
            border: none;
        }

        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-amber);
            outline-offset: 3px;
            border-radius: 0.5rem;
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                max-width: 1340px;
            }
        }

        /* Navigation */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            padding: 0.85rem 1.5rem;
            background: rgba(3, 26, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
            transition: var(--transition-base);
        }

        .navbar-custom .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1340px;
            margin: 0 auto;
        }

        .navbar-custom .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-amber);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            line-height: 1.2;
            transition: var(--transition-base);
        }

        .navbar-custom .logo:hover {
            color: var(--accent-amber-light);
            transform: scale(1.02);
        }

        .navbar-custom .logo i {
            font-size: 1.6rem;
            color: var(--accent-green);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            position: relative;
            padding: 0.5rem 0;
            letter-spacing: 0.01em;
            display: inline-block;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-amber);
            border-radius: 4px;
            transition: width 0.3s ease;
        }

        .nav-links a:hover, .nav-links a.active {
            color: var(--accent-amber);
        }

        .nav-links a:hover::after, .nav-links a.active::after {
            width: 100%;
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.85rem;
        }

        .nav-auth .btn-login {
            background: transparent;
            border: 1.5px solid var(--border-gold);
            color: var(--accent-amber);
            padding: 0.55rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

        .nav-auth .btn-login:hover {
            background: rgba(245, 158, 11, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber-light);
            box-shadow: var(--shadow-gold);
        }

        .nav-auth .btn-signup {
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            border: none;
            color: var(--bg-primary);
            padding: 0.6rem 1.7rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            letter-spacing: 0.01em;
        }

        .nav-auth .btn-signup:hover {
            background: linear-gradient(135deg, #FBBF24 0%, #F59E0B 100%);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
        }

        .nav-auth .btn-signup:active {
            transform: translateY(0);
        }

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
            transition: var(--transition-base);
        }

        .mobile-menu-toggle:hover {
            color: var(--accent-amber);
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background: rgba(6, 46, 32, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                gap: 1.2rem;
                padding: 2rem 1.5rem;
                border-bottom: 1px solid var(--border-subtle);
                transform: translateY(-120%);
                transition: transform 0.35s ease;
                z-index: 1049;
            }

            .nav-links.active {
                transform: translateY(0);
            }

            .nav-links a {
                font-size: 1.1rem;
                padding: 0.6rem 0;
            }

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

            .nav-auth .btn-login,
            .nav-auth .btn-signup {
                padding: 0.5rem 1rem;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            .navbar-custom {
                padding: 0.75rem 1rem;
            }

            .navbar-custom .logo {
                font-size: 1.1rem;
            }

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

            .nav-auth {
                gap: 0.5rem;
            }

            .nav-auth .btn-login,
            .nav-auth .btn-signup {
                padding: 0.4rem 0.8rem;
                font-size: 0.8rem;
            }
        }

        /* Article Header Banner */
        .article-header-banner {
            position: relative;
            background: linear-gradient(135deg, var(--bg-secondary) 0%, #041f15 100%);
            padding: 3.5rem 0 2.5rem;
            border-bottom: 1px solid var(--border-subtle);
            overflow: hidden;
        }

        .article-header-banner .backpic-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }

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

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1.2rem;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--accent-amber);
            font-weight: 500;
        }

        .breadcrumb-custom a:hover {
            color: var(--accent-amber-light);
            text-decoration: underline;
        }

        .breadcrumb-custom i {
            font-size: 0.7rem;
            color: var(--text-muted);
        }

        .article-meta-top {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            flex-wrap: wrap;
            margin-top: 1rem;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .article-meta-top .badge-category {
            background: var(--accent-amber);
            color: var(--bg-primary);
            padding: 0.35rem 1rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.02em;
        }

        .article-meta-top .meta-date {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .article-meta-top .meta-date i {
            color: var(--accent-green);
        }

        h1.article-title {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 0.5rem;
            letter-spacing: -0.015em;
        }

        @media (max-width: 768px) {
            h1.article-title {
                font-size: 1.9rem;
            }

            .article-header-banner {
                padding: 2.5rem 0 2rem;
            }
        }

        /* Article Main Layout */
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            align-items: start;
            padding: 2.5rem 0 3rem;
        }

        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2.5rem 2.8rem;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
        }

        .article-body img {
            border-radius: var(--radius-sm);
            margin: 1.8rem 0;
            box-shadow: var(--shadow-neon);
            border: 1px solid var(--border-subtle);
        }

        .article-body h2 {
            font-family: var(--font-heading);
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--accent-amber);
            margin-top: 2.2rem;
            margin-bottom: 1rem;
            border-left: 4px solid var(--accent-green);
            padding-left: 1rem;
        }

        .article-body h3 {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }

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

        .article-body ul, .article-body ol {
            margin: 1rem 0 1.5rem 1.5rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .article-body ul li, .article-body ol li {
            margin-bottom: 0.5rem;
        }

        .article-body blockquote {
            background: rgba(245, 158, 11, 0.07);
            border-left: 4px solid var(--accent-amber);
            padding: 1.2rem 1.8rem;
            margin: 1.8rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--accent-amber-light);
            font-style: italic;
        }

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

        .article-body a {
            color: var(--accent-green-light);
            font-weight: 600;
            text-decoration: underline;
            text-decoration-color: rgba(52, 211, 153, 0.4);
            text-underline-offset: 4px;
        }

        .article-body a:hover {
            color: var(--accent-amber-light);
            text-decoration-color: var(--accent-amber);
        }

        .article-not-found {
            text-align: center;
            padding: 4rem 2rem;
        }

        .article-not-found i {
            font-size: 3.5rem;
            color: var(--text-muted);
            display: block;
            margin-bottom: 1.5rem;
        }

        .article-not-found h2 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 2rem;
        }

        .article-not-found .btn-back {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            color: var(--bg-primary);
            padding: 0.8rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            box-shadow: var(--shadow-gold);
            transition: var(--transition-bounce);
        }

        .article-not-found .btn-back:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(245, 158, 11, 0.45);
            color: var(--bg-primary);
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 100px;
            display: flex;
            flex-direction: column;
            gap: 1.8rem;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
        }

        .sidebar-card h4 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--accent-amber);
            margin-bottom: 1.2rem;
            padding-bottom: 0.6rem;
            border-bottom: 1px solid var(--border-subtle);
        }

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

        .sidebar-card ul li {
            margin-bottom: 0.7rem;
        }

        .sidebar-card ul li a {
            color: var(--text-secondary);
            font-size: 0.95rem;
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
            transition: var(--transition-base);
        }

        .sidebar-card ul li a i {
            color: var(--accent-green);
            font-size: 0.8rem;
            margin-top: 0.25rem;
        }

        .sidebar-card ul li a:hover {
            color: var(--accent-amber);
            transform: translateX(4px);
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            text-align: center;
            color: var(--bg-primary);
            box-shadow: var(--shadow-gold);
        }

        .sidebar-cta h4 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 0.6rem;
            color: var(--bg-primary);
        }

        .sidebar-cta p {
            font-size: 0.9rem;
            margin-bottom: 1.2rem;
            opacity: 0.9;
        }

        .sidebar-cta .btn {
            background: var(--bg-primary);
            color: var(--accent-amber);
            padding: 0.65rem 1.8rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--transition-bounce);
            display: inline-block;
        }

        .sidebar-cta .btn:hover {
            background: var(--bg-secondary);
            transform: scale(1.05);
        }

        @media (max-width: 900px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .article-sidebar {
                position: static;
            }

            .article-body {
                padding: 1.5rem 1.2rem;
            }
        }

        /* Bottom CTA Section */
        .section-cta-article {
            background: linear-gradient(135deg, var(--bg-secondary) 0%, #052b1d 100%);
            padding: 3rem 0;
            border-top: 1px solid var(--border-subtle);
            position: relative;
            overflow: hidden;
        }

        .section-cta-article::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-7.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            pointer-events: none;
        }

        .cta-article-card {
            position: relative;
            z-index: 2;
            background: var(--glass-bg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-md);
            padding: 2.8rem;
            text-align: center;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-gold);
        }

        .cta-article-card h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-amber);
            margin-bottom: 1rem;
        }

        .cta-article-card p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }

        .cta-article-card .btn-cta-large {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            color: var(--bg-primary);
            padding: 1rem 2.8rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: var(--shadow-gold);
            transition: var(--transition-bounce);
            letter-spacing: 0.02em;
        }

        .cta-article-card .btn-cta-large:hover {
            transform: translateY(-4px);
            box-shadow: 0 14px 36px rgba(245, 158, 11, 0.5);
            color: var(--bg-primary);
        }

        .cta-article-card .trust-badges {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-top: 2rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .cta-article-card .trust-badges span {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(16, 185, 129, 0.1);
            padding: 0.5rem 1rem;
            border-radius: 2rem;
            border: 1px solid var(--border-subtle);
        }

        .cta-article-card .trust-badges i {
            color: var(--accent-green);
        }

        /* Footer */
        .footer-custom {
            background: var(--bg-secondary);
            border-top: 2px solid var(--border-gold);
            padding: 3.5rem 0 0;
            margin-top: 0;
        }

        .footer-custom .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent-amber);
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-custom .footer-brand i {
            color: var(--accent-green);
        }

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

        .footer-links a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent-amber);
            transform: translateX(3px);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem 0;
            margin-top: 3rem;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 1rem;
        }

        @media (max-width: 768px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* FAB */
        .fab-custom {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 1090;
            width: 56px;
            height: 56px;
            background: radial-gradient(circle at 30% 30%, #FCD34D, #B45309);
            border-radius: 50%;
            border: 2px solid var(--accent-amber);
            box-shadow: 0 6px 25px rgba(245, 158, 11, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-size: 1.4rem;
            cursor: pointer;
            animation: floatFab 3s ease-in-out infinite;
            transition: var(--transition-bounce);
        }

        .fab-custom:hover {
            transform: scale(1.12);
            box-shadow: 0 10px 35px rgba(245, 158, 11, 0.5);
            animation-play-state: paused;
        }

        .fab-custom:active {
            transform: scale(0.94);
        }

        .fab-badge {
            position: absolute;
            top: -6px;
            right: -6px;
            width: 18px;
            height: 18px;
            background: #DC2626;
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
        }

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

        @media (max-width: 768px) {
            .fab-custom {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 1rem;
                bottom: 5rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --bg-card: #083B2A;
            --accent-amber: #F59E0B;
            --accent-amber-light: #FCD34D;
            --accent-green: #10B981;
            --accent-green-light: #34D399;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6EE7B7;
            --text-dark: #064E3B;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-gold: rgba(245, 158, 11, 0.35);
            --glass-bg: rgba(8, 59, 42, 0.65);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.25);
            --shadow-neon: 0 4px 20px rgba(16, 185, 129, 0.3);
            --radius-sm: 0.75rem;
            --radius-md: 1.25rem;
            --radius-lg: 2rem;
            --radius-xl: 3rem;
            --font-heading: 'Playfair Display', 'Inter', serif;
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding-top: 76px;
        }

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

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

        button,
        .btn {
            font-family: var(--font-body);
            cursor: pointer;
            transition: var(--transition-bounce);
            outline: none;
            border: none;
        }

        button:focus-visible,
        .btn:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent-amber);
            outline-offset: 3px;
            border-radius: 0.5rem;
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 1400px) {
            .container-custom {
                max-width: 1340px;
            }
        }

        /* Navigation */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            padding: 0.85rem 1.5rem;
            background: rgba(3, 26, 18, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
            transition: var(--transition-base);
        }

        .navbar-custom .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1340px;
            margin: 0 auto;
        }

        .navbar-custom .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-amber);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            line-height: 1.2;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .navbar-custom .logo:hover {
            color: var(--accent-amber-light);
            transform: scale(1.02);
        }

        .navbar-custom .logo i {
            font-size: 1.6rem;
            color: var(--accent-green);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            position: relative;
            padding: 0.5rem 0;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-amber);
            border-radius: 4px;
            transition: width 0.3s ease;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-amber);
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.85rem;
        }

        .btn-login {
            background: transparent;
            border: 1.5px solid var(--border-gold) !important;
            color: var(--accent-amber);
            padding: 0.55rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-login:hover {
            background: rgba(245, 158, 11, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber-light);
            box-shadow: var(--shadow-gold);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            border: none;
            color: var(--bg-primary);
            padding: 0.6rem 1.7rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, var(--accent-amber-light) 0%, var(--accent-amber) 100%);
            transform: translateY(-1px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
        }

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.3rem 0.5rem;
            line-height: 1;
        }

        @media (max-width: 991.98px) {
            .nav-links {
                position: fixed;
                top: 76px;
                left: 0;
                width: 100%;
                background: rgba(3, 26, 18, 0.97);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                flex-direction: column;
                gap: 0;
                padding: 1.5rem 0;
                transform: translateY(-110%);
                opacity: 0;
                transition: transform 0.35s ease, opacity 0.35s ease;
                border-bottom: 1px solid var(--border-subtle);
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
                z-index: 1040;
            }

            .nav-links.show {
                transform: translateY(0);
                opacity: 1;
            }

            .nav-links a {
                padding: 0.9rem 2rem;
                width: 100%;
                display: block;
                font-size: 1.05rem;
                border-bottom: 1px solid rgba(16, 185, 129, 0.08);
            }

            .nav-links a::after {
                display: none;
            }

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

        @media (max-width: 520px) {
            .btn-login {
                padding: 0.45rem 1rem;
                font-size: 0.8rem;
            }

            .btn-signup {
                padding: 0.5rem 1.2rem;
                font-size: 0.8rem;
            }

            .navbar-custom .logo {
                font-size: 1.15rem;
            }
        }

        /* Section spacing */
        .section-padding {
            padding: 5rem 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 3.5rem 0;
            }
        }

        /* Hero Category */
        .hero-category {
            background: linear-gradient(135deg, #031A12 0%, #062E20 50%, #083B2A 100%);
            position: relative;
            padding: 6rem 0 5rem;
            overflow: hidden;
            border-bottom: 1px solid var(--border-subtle);
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-category .badge-tag {
            display: inline-block;
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent-amber);
            border: 1px solid var(--border-gold);
            padding: 0.5rem 1.2rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.03em;
            margin-bottom: 1.5rem;
            text-transform: uppercase;
        }

        .hero-category h1 {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 1.25rem;
            letter-spacing: -0.02em;
        }

        .hero-category .lead-text {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.65;
            margin-bottom: 2.5rem;
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-top: 1rem;
        }

        .hero-stat-item {
            background: var(--glass-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.8rem;
            min-width: 150px;
            backdrop-filter: blur(8px);
            transition: var(--transition-base);
        }

        .hero-stat-item:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }

        .hero-stat-item .stat-number {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--accent-amber);
            line-height: 1.2;
        }

        .hero-stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
            margin-top: 0.35rem;
        }

        @media (max-width: 768px) {
            .hero-category {
                padding: 4.5rem 0 3.5rem;
            }

            .hero-category h1 {
                font-size: 2.2rem;
            }

            .hero-stats-row {
                gap: 1rem;
            }

            .hero-stat-item {
                min-width: 120px;
                padding: 1.2rem 1.2rem;
            }

            .hero-stat-item .stat-number {
                font-size: 1.8rem;
            }
        }

        /* Icon Matrix */
        .icon-matrix {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-bottom: 2rem;
        }

        .icon-matrix .matrix-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 1.5px solid var(--border-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent-green-light);
            transition: var(--transition-bounce);
        }

        .icon-matrix .matrix-icon:hover {
            background: var(--accent-green);
            color: var(--bg-primary);
            border-color: var(--accent-green);
            box-shadow: var(--shadow-neon);
            transform: scale(1.15);
        }

        /* Section Title */
        .section-title-group {
            margin-bottom: 3rem;
        }

        .section-title-group .section-label {
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-amber);
            margin-bottom: 0.5rem;
        }

        .section-title-group h2 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        .section-title-group .desc {
            font-size: 1.02rem;
            color: var(--text-secondary);
            max-width: 700px;
        }

        @media (max-width: 768px) {
            .section-title-group h2 {
                font-size: 1.8rem;
            }
        }

        /* Criteria Cards */
        .criteria-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem 1.8rem;
            height: 100%;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .criteria-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-amber), var(--accent-green));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

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

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

        .criteria-card .criteria-icon {
            width: 56px;
            height: 56px;
            background: rgba(16, 185, 129, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.7rem;
            color: var(--accent-green-light);
            margin-bottom: 1.25rem;
            transition: var(--transition-base);
        }

        .criteria-card:hover .criteria-icon {
            background: var(--accent-green);
            color: var(--bg-primary);
        }

        .criteria-card h4 {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }

        .criteria-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            margin: 0;
        }

        /* Comparison Table */
        .comparison-table-wrap {
            overflow-x: auto;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            padding: 0.5rem;
            box-shadow: var(--shadow-card);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 800px;
            font-size: 0.95rem;
        }

        .comparison-table thead th {
            background: var(--bg-secondary);
            color: var(--accent-amber);
            font-weight: 700;
            padding: 1.1rem 1.2rem;
            text-align: left;
            border-bottom: 2px solid var(--border-gold);
            white-space: nowrap;
        }

        .comparison-table tbody td {
            padding: 1rem 1.2rem;
            border-bottom: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            vertical-align: middle;
        }

        .comparison-table tbody tr:hover td {
            background: rgba(16, 185, 129, 0.06);
        }

        .badge-rating {
            background: linear-gradient(135deg, var(--accent-amber), #D97706);
            color: var(--bg-primary);
            font-weight: 700;
            padding: 0.3rem 0.9rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            display: inline-block;
        }

        .badge-trust {
            background: rgba(16, 185, 129, 0.2);
            color: var(--accent-green-light);
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            border: 1px solid rgba(16, 185, 129, 0.3);
            display: inline-block;
        }

        /* Platform Card */
        .platform-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2.2rem 2rem;
            height: 100%;
            transition: var(--transition-bounce);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .platform-card:hover {
            border-color: var(--accent-amber);
            box-shadow: var(--shadow-gold);
            transform: translateY(-5px);
        }

        .platform-card .platform-rank {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            font-family: var(--font-heading);
            font-size: 2.5rem;
            font-weight: 800;
            color: rgba(245, 158, 11, 0.2);
            line-height: 1;
        }

        .platform-card .platform-logo-area {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.25rem;
        }

        .platform-card .platform-logo-area .avatar-placeholder {
            width: 54px;
            height: 54px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-amber) 0%, var(--accent-green) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--bg-primary);
        }

        .platform-card h4 {
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-primary);
            margin: 0;
        }

        .platform-card .platform-rating {
            font-size: 0.9rem;
            color: var(--accent-amber);
            font-weight: 600;
        }

        .platform-card .platform-features {
            list-style: none;
            padding: 0;
            margin: 1.5rem 0;
            flex-grow: 1;
        }

        .platform-card .platform-features li {
            padding: 0.5rem 0;
            font-size: 0.92rem;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(16, 185, 129, 0.08);
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .platform-card .platform-features li i {
            color: var(--accent-green);
            font-size: 0.8rem;
            width: 18px;
            text-align: center;
        }

        .btn-visit {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-amber), #B45309);
            color: #fff;
            font-weight: 700;
            padding: 0.75rem 1.8rem;
            border-radius: var(--radius-sm);
            text-align: center;
            transition: var(--transition-bounce);
            font-size: 0.95rem;
            letter-spacing: 0.02em;
        }

        .btn-visit:hover {
            color: #fff;
            box-shadow: 0 6px 24px rgba(245, 158, 11, 0.45);
            transform: translateY(-2px);
        }

        /* Article List */
        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.6rem;
            transition: var(--transition-base);
            display: flex;
            gap: 1.2rem;
            margin-bottom: 1.2rem;
            align-items: flex-start;
        }

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

        .article-card .article-thumb {
            width: 90px;
            height: 90px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-secondary);
        }

        .article-card .article-body h4 {
            font-weight: 700;
            font-size: 1.08rem;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }

        .article-card .article-body .article-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .article-card .article-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0.4rem 0 0;
            line-height: 1.5;
        }

        @media (max-width: 576px) {
            .article-card {
                flex-direction: column;
                padding: 1.2rem;
            }

            .article-card .article-thumb {
                width: 100%;
                height: 180px;
            }
        }

        /* FAQ */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: 1rem;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1.02rem;
            padding: 1.25rem 1.5rem;
            border: none;
            box-shadow: none;
            transition: var(--transition-base);
        }

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

        .faq-accordion .accordion-button::after {
            filter: brightness(0) invert(0.7);
        }

        .faq-accordion .accordion-body {
            padding: 1.5rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            background: var(--bg-secondary);
        }

        /* Footer */
        .footer-custom {
            background: #020E0B;
            border-top: 1px solid var(--border-subtle);
            padding: 4rem 0 2rem;
            margin-top: 2rem;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent-amber);
            margin-bottom: 0.8rem;
        }

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

        .footer-links a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent-amber);
            padding-left: 5px;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding-top: 2rem;
            margin-top: 3rem;
            border-top: 1px solid var(--border-subtle);
            color: var(--text-muted);
            font-size: 0.85rem;
            gap: 1rem;
        }

        @media (max-width: 767.98px) {
            .footer-custom {
                padding: 3rem 0 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --bg-card: #083B2A;
            --accent-amber: #F59E0B;
            --accent-amber-light: #FCD34D;
            --accent-green: #10B981;
            --accent-green-light: #34D399;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6EE7B7;
            --text-dark: #064E3B;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-gold: rgba(245, 158, 11, 0.35);
            --glass-bg: rgba(8, 59, 42, 0.65);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.25);
            --shadow-neon: 0 4px 20px rgba(16, 185, 129, 0.3);
            --radius-sm: 0.75rem;
            --radius-md: 1.25rem;
            --radius-lg: 2rem;
            --radius-xl: 3rem;
            --font-heading: 'Playfair Display', 'Inter', serif;
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button, .btn {
            font-family: var(--font-body);
            cursor: pointer;
            transition: var(--transition-bounce);
            outline: none;
        }

        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-amber);
            outline-offset: 3px;
            border-radius: 0.5rem;
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 1400px) {
            .container-custom {
                max-width: 1340px;
            }
        }

        /* Navigation */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            padding: 0.85rem 1.5rem;
            background: rgba(3, 26, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
            transition: var(--transition-base);
        }

        .navbar-custom .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1340px;
            margin: 0 auto;
        }

        .navbar-custom .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-amber);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            line-height: 1.2;
            transition: var(--transition-base);
        }

        .navbar-custom .logo:hover {
            color: var(--accent-amber-light);
            transform: scale(1.02);
        }

        .navbar-custom .logo i {
            font-size: 1.6rem;
            color: var(--accent-green);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            position: relative;
            padding: 0.5rem 0;
            letter-spacing: 0.01em;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-amber);
            border-radius: 4px;
            transition: width 0.3s ease;
        }

        .nav-links a:hover, .nav-links a.active {
            color: var(--accent-amber);
        }

        .nav-links a:hover::after, .nav-links a.active::after {
            width: 100%;
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.85rem;
        }

        .nav-auth .btn-login {
            background: transparent;
            border: 1.5px solid var(--border-gold);
            color: var(--accent-amber);
            padding: 0.55rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

        .nav-auth .btn-login:hover {
            background: rgba(245, 158, 11, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber-light);
            box-shadow: var(--shadow-gold);
        }

        .nav-auth .btn-signup {
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            border: none;
            color: var(--bg-primary);
            padding: 0.6rem 1.7rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            letter-spacing: 0.01em;
            transition: var(--transition-bounce);
        }

        .nav-auth .btn-signup:hover {
            background: linear-gradient(135deg, var(--accent-amber-light) 0%, var(--accent-amber) 100%);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.35);
        }

        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 0.4rem;
        }

        @media (max-width: 992px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 75%;
                max-width: 340px;
                height: 100vh;
                flex-direction: column;
                background: rgba(8, 59, 42, 0.98);
                backdrop-filter: blur(20px);
                padding: 5rem 2rem 2rem;
                gap: 1.5rem;
                transition: right 0.35s ease;
                z-index: 1051;
                box-shadow: -8px 0 30px rgba(0,0,0,0.45);
            }
            .nav-links.show {
                right: 0;
            }
            .nav-links a {
                font-size: 1.1rem;
                padding: 0.7rem 0;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-auth .btn-login,
            .nav-auth .btn-signup {
                padding: 0.5rem 1rem;
                font-size: 0.82rem;
            }
        }

        /* Page Header */
        .page-header {
            padding: 8rem 0 3.5rem;
            background: linear-gradient(180deg, rgba(6, 46, 32, 0.7) 0%, var(--bg-primary) 100%);
            position: relative;
            border-bottom: 1px solid var(--border-subtle);
        }

        .page-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at 30% 20%, rgba(16, 185, 129, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .page-header h1 {
            font-family: var(--font-heading);
            font-size: clamp(2.3rem, 5vw, 3.2rem);
            font-weight: 800;
            color: var(--accent-amber);
            margin-bottom: 1.2rem;
            position: relative;
            z-index: 1;
        }

        .page-header .subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 750px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }

        /* Section Styles */
        .section {
            padding: 4.5rem 0;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: clamp(1.8rem, 3.5vw, 2.2rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 680px;
            margin-bottom: 2.5rem;
            line-height: 1.7;
        }

        .card-glass {
            background: var(--glass-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 2rem;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card);
            transition: var(--transition-bounce);
            height: 100%;
        }

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

        .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-green), #059669);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 1.2rem;
        }

        .card-glass h3 {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }

        .card-glass p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            padding: 0.5rem 1.2rem;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--accent-amber);
            white-space: nowrap;
        }

        .stat-badge i {
            font-size: 0.85rem;
        }

        .tip-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            border-left: 4px solid var(--accent-amber);
            box-shadow: var(--shadow-card);
            height: 100%;
            transition: var(--transition-base);
        }

        .tip-card:hover {
            border-left-color: var(--accent-green);
            box-shadow: var(--shadow-neon);
        }

        .tip-card .tip-number {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-amber);
            opacity: 0.5;
            line-height: 1;
            margin-bottom: 0.8rem;
        }

        .tip-card h4 {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }

        .tip-card p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.65;
            margin-bottom: 0;
        }

        .comparison-table {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .comparison-table .table-header {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            background: var(--bg-secondary);
            padding: 1rem 1.5rem;
            font-weight: 700;
            color: var(--accent-amber);
            font-size: 0.95rem;
            border-bottom: 1px solid var(--border-subtle);
        }

        .comparison-table .table-row {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            padding: 1rem 1.5rem;
            border-bottom: 1px solid rgba(16, 185, 129, 0.08);
            font-size: 0.92rem;
            align-items: center;
        }

        .comparison-table .table-row:last-child {
            border-bottom: none;
        }

        .comparison-table .table-row .label {
            color: var(--text-secondary);
            font-weight: 600;
        }

        .comparison-table .table-row .value-positive {
            color: var(--accent-green);
            font-weight: 600;
        }

        .comparison-table .table-row .value-warning {
            color: var(--accent-amber);
            font-weight: 600;
        }

        .btn-cta {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            color: var(--bg-primary);
            padding: 0.8rem 2.2rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-gold);
            transition: var(--transition-bounce);
            border: none;
            letter-spacing: 0.02em;
            text-align: center;
        }

        .btn-cta:hover {
            background: linear-gradient(135deg, var(--accent-amber-light) 0%, var(--accent-amber) 100%);
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(245, 158, 11, 0.4);
            color: var(--bg-primary);
        }

        .btn-outline-amber {
            display: inline-block;
            border: 2px solid var(--border-gold);
            color: var(--accent-amber);
            padding: 0.75rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            background: transparent;
            transition: var(--transition-base);
            text-align: center;
        }

        .btn-outline-amber:hover {
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent-amber-light);
            box-shadow: var(--shadow-gold);
        }

        .milestone-line {
            position: relative;
            padding-left: 2.5rem;
            border-left: 2px dashed var(--border-gold);
            margin-bottom: 1.8rem;
        }

        .milestone-line:last-child {
            margin-bottom: 0;
        }

        .milestone-line::before {
            content: '';
            position: absolute;
            left: -9px;
            top: 4px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--accent-amber);
            box-shadow: 0 0 12px rgba(245, 158, 11, 0.4);
        }

        .milestone-line h5 {
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }

        .milestone-line p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* Article list */
        .article-card {
            display: flex;
            gap: 1.5rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.2rem;
            box-shadow: var(--shadow-card);
            transition: var(--transition-bounce);
            align-items: center;
            margin-bottom: 1.2rem;
            border: 1px solid transparent;
        }

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

        .article-card .article-thumb {
            width: 140px;
            min-width: 140px;
            height: 100px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }

        .article-card .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-card .article-info {
            flex: 1;
            min-width: 0;
        }

        .article-card .article-info .article-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.3rem;
        }

        .article-card .article-info h5 {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }

        .article-card .article-info p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.5;
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        @media (max-width: 768px) {
            .article-card {
                flex-direction: column;
                align-items: stretch;
            }
            .article-card .article-thumb {
                width: 100%;
                min-width: auto;
                height: 180px;
            }
            .comparison-table .table-header,
            .comparison-table .table-row {
                grid-template-columns: 1.2fr 1fr 1fr;
                font-size: 0.8rem;
                padding: 0.8rem 1rem;
            }
        }

        @media (max-width: 520px) {
            .comparison-table .table-header,
            .comparison-table .table-row {
                grid-template-columns: 1fr 0.8fr 0.8fr;
                font-size: 0.72rem;
                padding: 0.65rem 0.6rem;
            }
            .nav-auth .btn-login,
            .nav-auth .btn-signup {
                padding: 0.4rem 0.7rem;
                font-size: 0.75rem;
            }
        }

        /* Footer */
        .footer-custom {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 3.5rem 0 2rem;
            margin-top: 2rem;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-amber);
            margin-bottom: 0.6rem;
        }

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

        .footer-links a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent-amber);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(16, 185, 129, 0.1);
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

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

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

        /* Alert box */
        .alert-safe {
            background: rgba(16, 185, 129, 0.1);
            border: 1px solid rgba(16, 185, 129, 0.35);
            border-radius: var(--radius-md);
            padding: 1.5rem 2rem;
            display: flex;
            gap: 1rem;
            align-items: flex-start;
        }

        .alert-safe i {
            font-size: 1.8rem;
            color: var(--accent-green);
            flex-shrink: 0;
            margin-top: 2px;
        }

        .alert-safe p {
            margin: 0;
            color: var(--text-secondary);
            font-weight: 500;
            line-height: 1.7;
        }

        .bg-highlight {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 3rem;
        }

/* roulang page: category3 */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --bg-card: #083B2A;
            --accent-amber: #F59E0B;
            --accent-amber-light: #FCD34D;
            --accent-green: #10B981;
            --accent-green-light: #34D399;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6EE7B7;
            --text-dark: #064E3B;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-gold: rgba(245, 158, 11, 0.35);
            --glass-bg: rgba(8, 59, 42, 0.65);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.25);
            --shadow-neon: 0 4px 20px rgba(16, 185, 129, 0.3);
            --radius-sm: 0.75rem;
            --radius-md: 1.25rem;
            --radius-lg: 2rem;
            --radius-xl: 3rem;
            --font-heading: 'Playfair Display', 'Inter', serif;
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 80px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, .btn {
            font-family: var(--font-body);
            cursor: pointer;
            transition: var(--transition-bounce);
            outline: none;
            border: none;
        }
        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-amber);
            outline-offset: 3px;
            border-radius: 0.5rem;
        }

        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (min-width: 1400px) {
            .container-custom {
                max-width: 1340px;
            }
        }

        /* Navigation */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            padding: 0.85rem 1.5rem;
            background: rgba(3, 26, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
            transition: var(--transition-base);
        }
        .navbar-custom .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1340px;
            margin: 0 auto;
        }
        .navbar-custom .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-amber);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            line-height: 1.2;
            transition: var(--transition-base);
        }
        .navbar-custom .logo:hover {
            color: var(--accent-amber-light);
            transform: scale(1.02);
        }
        .navbar-custom .logo i {
            font-size: 1.6rem;
            color: var(--accent-green);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            position: relative;
            padding: 0.5rem 0;
            letter-spacing: 0.01em;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-amber);
            border-radius: 4px;
            transition: width 0.3s ease;
        }
        .nav-links a:hover, .nav-links a.active {
            color: var(--accent-amber);
        }
        .nav-links a:hover::after, .nav-links a.active::after {
            width: 100%;
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.85rem;
        }
        .nav-auth .btn-login {
            background: transparent;
            border: 1.5px solid var(--border-gold);
            color: var(--accent-amber);
            padding: 0.55rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition-base);
        }
        .nav-auth .btn-login:hover {
            background: rgba(245, 158, 11, 0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber-light);
            box-shadow: var(--shadow-gold);
        }
        .nav-auth .btn-signup {
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            border: none;
            color: var(--bg-primary);
            padding: 0.6rem 1.7rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            letter-spacing: 0.01em;
        }
        .nav-auth .btn-signup:hover {
            background: linear-gradient(135deg, var(--accent-amber-light) 0%, #F59E0B 100%);
            box-shadow: 0 6px 30px rgba(245, 158, 11, 0.4);
            transform: translateY(-2px);
        }
        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-subtle);
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 0.4rem 0.7rem;
            border-radius: var(--radius-sm);
            transition: var(--transition-base);
        }
        .mobile-menu-toggle:hover {
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }

        @media (max-width: 992px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--bg-secondary);
                flex-direction: column;
                padding: 5rem 2rem;
                gap: 1.5rem;
                transition: 0.35s ease;
                box-shadow: -5px 0 25px rgba(0,0,0,0.5);
                z-index: 1049;
            }
            .nav-links.active {
                right: 0;
            }
            .mobile-menu-toggle {
                display: block;
            }
        }

        /* Hero Section */
        .section-hero {
            background: radial-gradient(ellipse at 20% 0%, #083B2A 0%, #031A12 65%);
            padding: 4rem 0 5rem;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-gold);
        }
        .hero-badge {
            display: inline-block;
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent-amber);
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.05em;
            padding: 0.5rem 1.5rem;
            border-radius: 3rem;
            border: 1px solid var(--border-gold);
            margin-bottom: 1.5rem;
        }
        .section-hero h1 {
            font-family: var(--font-heading);
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.15;
            color: var(--text-primary);
            margin-bottom: 1.5rem;
            max-width: 800px;
        }
        .section-hero h1 span {
            background: linear-gradient(135deg, var(--accent-amber), var(--accent-amber-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .section-hero .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 650px;
            margin-bottom: 2.5rem;
            line-height: 1.7;
        }
        .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 3rem;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .hero-stat-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--glass-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-amber);
            border: 1px solid var(--border-gold);
        }
        .hero-stat-text strong {
            display: block;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-primary);
        }
        .hero-stat-text span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Sections */
        .section-custom {
            padding: 5rem 0;
        }
        .section-label {
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.08em;
            color: var(--accent-amber);
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .section-subtitle {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 700px;
            line-height: 1.7;
        }

        /* Cards */
        .promo-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 2.2rem;
            height: 100%;
            transition: var(--transition-bounce);
            position: relative;
            overflow: hidden;
        }
        .promo-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-6px);
            box-shadow: var(--shadow-gold);
        }
        .promo-card .card-tag {
            position: absolute;
            top: 1.5rem;
            right: 1.5rem;
            background: #DC2626;
            color: white;
            font-size: 0.7rem;
            font-weight: 800;
            padding: 0.3rem 1rem;
            border-radius: 3rem;
            letter-spacing: 0.05em;
        }
        .promo-card .card-tag.gold {
            background: linear-gradient(135deg, #F59E0B, #D97706);
        }
        .promo-card h3 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            margin: 1.2rem 0 0.75rem;
            color: var(--text-primary);
        }
        .promo-card .promo-value {
            font-size: 2.8rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent-amber), #FBBF24);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin: 1rem 0;
        }
        .promo-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .btn-outline-amber {
            border: 1.5px solid var(--border-gold);
            color: var(--accent-amber);
            background: transparent;
            font-weight: 700;
            padding: 0.65rem 2rem;
            border-radius: var(--radius-sm);
            transition: var(--transition-base);
            display: inline-block;
        }
        .btn-outline-amber:hover {
            background: var(--accent-amber);
            color: var(--bg-primary);
            box-shadow: var(--shadow-gold);
        }
        .btn-solid-amber {
            background: linear-gradient(135deg, var(--accent-amber), #D97706);
            color: var(--bg-primary);
            font-weight: 700;
            padding: 0.8rem 2.5rem;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-gold);
            display: inline-block;
            font-size: 1rem;
        }
        .btn-solid-amber:hover {
            box-shadow: 0 8px 32px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
            color: var(--bg-primary);
        }

        /* Info Box */
        .info-box {
            background: var(--glass-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 2rem;
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            backdrop-filter: blur(10px);
            margin-bottom: 1.5rem;
        }
        .info-box-icon {
            font-size: 2rem;
            color: var(--accent-amber);
            flex-shrink: 0;
        }

        /* Product Comparison Table */
        .compare-table {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            border: 1px solid var(--border-subtle);
        }
        .table-custom {
            color: var(--text-primary);
            margin-bottom: 0;
        }
        .table-custom th {
            font-weight: 700;
            color: var(--accent-amber);
            border-bottom: 2px solid var(--border-gold);
            padding: 1rem;
            font-size: 1rem;
        }
        .table-custom td {
            padding: 1.1rem 1rem;
            border-color: var(--border-subtle);
            vertical-align: middle;
            color: var(--text-secondary);
        }
        .badge-check {
            background: rgba(16, 185, 129, 0.2);
            color: var(--accent-green);
            font-weight: 700;
            padding: 0.3rem 1rem;
            border-radius: 3rem;
            font-size: 0.8rem;
        }

        /* Footer */
        .footer-custom {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-gold);
            padding: 4rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-amber);
            margin-bottom: 1rem;
        }
        .footer-links h5 {
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            font-size: 1rem;
        }
        .footer-links a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            transition: var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--accent-amber);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            color: var(--text-muted);
            font-size: 0.85rem;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        @media (max-width: 768px) {
            .section-hero h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .hero-stats {
                gap: 1.5rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #031A12;
            --bg-secondary: #062E20;
            --bg-card: #083B2A;
            --accent-amber: #F59E0B;
            --accent-amber-light: #FCD34D;
            --accent-green: #10B981;
            --accent-green-light: #34D399;
            --text-primary: #F0FDF4;
            --text-secondary: #A7F3D0;
            --text-muted: #6EE7B7;
            --text-dark: #064E3B;
            --border-subtle: rgba(16, 185, 129, 0.2);
            --border-gold: rgba(245, 158, 11, 0.35);
            --glass-bg: rgba(8, 59, 42, 0.65);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.25);
            --shadow-neon: 0 4px 20px rgba(16, 185, 129, 0.3);
            --radius-sm: 0.75rem;
            --radius-md: 1.25rem;
            --radius-lg: 2rem;
            --radius-xl: 3rem;
            --font-heading: 'Playfair Display', 'Inter', serif;
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-body);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 76px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, .btn {
            font-family: var(--font-body);
            cursor: pointer;
            transition: var(--transition-bounce);
            outline: none;
        }
        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-amber);
            outline-offset: 3px;
            border-radius: 0.5rem;
        }
        .container-custom {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media(min-width:1400px) {
            .container-custom {
                max-width: 1340px;
            }
        }
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            padding: 0.85rem 1.5rem;
            background: rgba(3, 26, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 2px 20px rgba(0,0,0,0.2);
            transition: var(--transition-base);
        }
        .navbar-custom .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1340px;
            margin: 0 auto;
        }
        .navbar-custom .logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-amber);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            line-height: 1.2;
            transition: var(--transition-base);
        }
        .navbar-custom .logo:hover {
            color: var(--accent-amber-light);
            transform: scale(1.02);
        }
        .navbar-custom .logo i {
            font-size: 1.6rem;
            color: var(--accent-green);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            position: relative;
            padding: 0.5rem 0;
            letter-spacing: 0.01em;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-amber);
            border-radius: 4px;
            transition: width 0.3s ease;
        }
        .nav-links a:hover, .nav-links a.active {
            color: var(--accent-amber);
        }
        .nav-links a:hover::after, .nav-links a.active::after {
            width: 100%;
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.85rem;
        }
        .nav-auth .btn-login {
            background: transparent;
            border: 1.5px solid var(--border-gold);
            color: var(--accent-amber);
            padding: 0.55rem 1.4rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition-base);
        }
        .nav-auth .btn-login:hover {
            background: rgba(245,158,11,0.12);
            border-color: var(--accent-amber);
            color: var(--accent-amber-light);
            box-shadow: var(--shadow-gold);
        }
        .nav-auth .btn-signup {
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            border: none;
            color: var(--bg-primary);
            padding: 0.6rem 1.7rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            letter-spacing: 0.01em;
        }
        .nav-auth .btn-signup:hover {
            box-shadow: 0 6px 30px rgba(245,158,11,0.4);
            transform: translateY(-2px);
        }
        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
        }
        @media(max-width:991px) {
            .nav-links {
                position: fixed;
                top: 76px;
                left: 0;
                width: 100%;
                background: rgba(3,26,18,0.95);
                backdrop-filter: blur(25px);
                flex-direction: column;
                gap: 1.2rem;
                padding: 2rem 1.5rem;
                transform: translateY(-120%);
                transition: transform 0.4s ease;
                border-bottom: 1px solid var(--border-subtle);
                z-index: 1040;
            }
            .nav-links.show {
                transform: translateY(0);
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-auth .btn-login, .nav-auth .btn-signup {
                font-size: 0.8rem;
                padding: 0.45rem 1rem;
            }
        }
        .page-hero {
            background: linear-gradient(180deg, rgba(6,46,32,0.4) 0%, var(--bg-primary) 100%), url('/assets/images/backpic/back-5.jpg') center/cover no-repeat;
            padding: 4.5rem 0 4rem;
            position: relative;
            border-bottom: 1px solid var(--border-gold);
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(245,158,11,0.08) 0%, transparent 60%);
            pointer-events: none;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: var(--accent-amber);
            color: var(--bg-primary);
            font-weight: 700;
            font-size: 0.8rem;
            padding: 0.35rem 1rem;
            border-radius: 50px;
            letter-spacing: 0.03em;
            margin-bottom: 1.5rem;
        }
        .page-hero h1 {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
            margin-bottom: 1.25rem;
            max-width: 750px;
        }
        .page-hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent-amber), var(--accent-amber-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero .hero-sub {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }
        .btn-gold {
            background: linear-gradient(135deg, var(--accent-amber) 0%, #D97706 100%);
            border: none;
            color: var(--bg-primary);
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-gold);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-gold:hover {
            box-shadow: 0 6px 35px rgba(245,158,11,0.45);
            transform: translateY(-2px);
            color: var(--bg-primary);
        }
        .promo-filters {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin: 2rem 0;
        }
        .promo-filter-tag {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .promo-filter-tag:hover, .promo-filter-tag.active {
            background: var(--accent-amber);
            border-color: var(--accent-amber);
            color: var(--bg-primary);
        }
        .promo-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 2rem;
            position: relative;
            overflow: hidden;
            transition: var(--transition-bounce);
            height: 100%;
        }
        .promo-card::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 100px;
            height: 100px;
            background: radial-gradient(circle, rgba(245,158,11,0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .promo-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }
        .promo-card .promo-badge {
            display: inline-block;
            background: #DC2626;
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.25rem 0.8rem;
            border-radius: 4px;
            letter-spacing: 0.04em;
            margin-bottom: 1rem;
        }
        .promo-card .promo-icon {
            font-size: 2.4rem;
            color: var(--accent-amber);
            margin-bottom: 1rem;
        }
        .promo-card h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .promo-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
            line-height: 1.65;
        }
        .promo-card .promo-code {
            background: rgba(245,158,11,0.1);
            border: 1px dashed var(--border-gold);
            padding: 0.4rem 1rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            color: var(--accent-amber);
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 1.25rem;
        }
        .promo-card .btn-claim {
            background: transparent;
            border: 1.5px solid var(--accent-green);
            color: var(--accent-green);
            padding: 0.55rem 1.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
        }
        .promo-card .btn-claim:hover {
            background: var(--accent-green);
            color: var(--bg-primary);
        }
        .metric-row {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
            justify-content: space-between;
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            padding: 2.5rem 2rem;
            border: 1px solid var(--border-subtle);
        }
        .metric-item {
            text-align: left;
            flex: 1;
            min-width: 140px;
        }
        .metric-item .metric-value {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-amber);
            line-height: 1.1;
        }
        .metric-item .metric-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }
        .step-timeline {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            counter-reset: step;
        }
        .step-item {
            flex: 1;
            min-width: 220px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem;
            position: relative;
            border: 1px solid var(--border-subtle);
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -15px;
            right: 20px;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-amber);
            color: var(--bg-primary);
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }
        .step-item h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }
        .step-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin: 0;
        }
        .cta-strip {
            background: linear-gradient(135deg, var(--accent-amber) 0%, #B45309 100%);
            border-radius: var(--radius-lg);
            padding: 3.5rem 2rem;
            text-align: left;
            position: relative;
            overflow: hidden;
        }
        .cta-strip::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: rgba(255,255,255,0.08);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-strip h2 {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 2rem;
            color: var(--bg-primary);
            margin-bottom: 0.75rem;
        }
        .cta-strip p {
            color: rgba(0,0,0,0.8);
            font-weight: 500;
            max-width: 500px;
            margin-bottom: 1.5rem;
        }
        .cta-strip .btn-dark {
            background: var(--bg-primary);
            color: var(--accent-amber);
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            border: none;
        }
        .cta-strip .btn-dark:hover {
            background: #000;
        }
        .footer-custom {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
            font-size: 0.9rem;
        }
        .footer-custom .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-amber);
            margin-bottom: 0.75rem;
        }
        .footer-custom .footer-links a {
            display: block;
            color: var(--text-secondary);
            margin-bottom: 0.5rem;
            font-size: 0.85rem;
        }
        .footer-custom .footer-links a:hover {
            color: var(--accent-amber);
        }
        .footer-custom h5 {
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            font-size: 0.95rem;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            margin-top: 2rem;
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
        }
        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 600px;
            margin-bottom: 2.5rem;
        }
        @media(max-width:768px) {
            .page-hero h1 {
                font-size: 2rem;
            }
            .metric-row {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        .fab-custom {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #FCD34D, #B45309);
            border: 2px solid var(--accent-amber);
            box-shadow: 0 6px 25px rgba(245,158,11,0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-size: 1.4rem;
            cursor: pointer;
            transition: var(--transition-bounce);
            animation: fabBreathe 3s ease-in-out infinite;
        }
        .fab-custom:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 35px rgba(245,158,11,0.5);
        }
        @keyframes fabBreathe {
            0%,100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

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