/* roulang page: index */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: rgba(255,255,255,0.8);
            --border-subtle: rgba(255,255,255,0.12);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
            --shadow-md: 0 6px 18px rgba(0,0,0,0.3);
            --shadow-gold: 0 4px 20px rgba(255,215,0,0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --font-family: 'Be Vietnam Pro', sans-serif;
            --transition: 0.25s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            padding-bottom: 72px; /* space for fixed bottom bar */
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--text-mint);
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: 72px 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-white);
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-mint);
            margin-bottom: 32px;
            max-width: 650px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            text-transform: none;
            border: none;
            cursor: pointer;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
            white-space: nowrap;
        }
        .btn:focus-visible {
            outline: 3px solid var(--accent-gold);
            outline-offset: 2px;
        }
        .btn-gold {
            background: linear-gradient(145deg, #FFE066, #FFD700);
            color: #0A2E1C;
            box-shadow: 0 4px 14px rgba(255,215,0,0.4);
        }
        .btn-gold:hover {
            background: linear-gradient(145deg, #FFE680, #FFD700);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255,215,0,0.55);
        }
        .btn-red {
            background: linear-gradient(145deg, #E64A45, var(--accent-red));
            color: #fff;
            box-shadow: 0 4px 14px rgba(211,47,47,0.4);
        }
        .btn-red:hover {
            background: linear-gradient(145deg, #E64A45, #B71C1C);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(211,47,47,0.55);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
        }
        .btn-outline:hover {
            background: rgba(255,215,0,0.12);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 15px 32px;
            font-size: 1.05rem;
        }
        /* Header */
        header.navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
        }
        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .logo span {
            color: #fff;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-menu li a {
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 4px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
        }
        .nav-menu li a:hover,
        .nav-menu li a.active {
            color: var(--accent-gold);
            border-bottom-color: var(--accent-gold);
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 20px;
        }
        .nav-auth .btn {
            padding: 8px 16px;
            font-size: 0.9rem;
        }
        .nav-auth .btn-text {
            background: transparent;
            border: none;
            color: var(--text-white);
            font-weight: 600;
            padding: 8px 12px;
        }
        .nav-auth .btn-text:hover {
            color: var(--accent-gold);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.8rem;
            cursor: pointer;
        }
        /* Hero */
        .hero {
            min-height: 90vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            margin-top: 72px;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10,46,28,0.95) 0%, rgba(18,62,37,0.88) 60%, rgba(10,46,28,0.7) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
            text-align: center;
            max-width: 850px;
            margin: 0 auto;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--accent-gold);
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }
        .hero p {
            font-size: 1.15rem;
            color: var(--text-mint);
            margin-bottom: 30px;
            line-height: 1.6;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-group-module {
            background: rgba(0,0,0,0.55);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255,215,0,0.5);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            max-width: 520px;
            margin: 0 auto 32px;
            text-align: left;
        }
        .group-progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.95rem;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        .group-progress-bar {
            height: 10px;
            background: rgba(255,255,255,0.2);
            border-radius: 20px;
            overflow: hidden;
            margin-bottom: 20px;
        }
        .group-progress-fill {
            height: 100%;
            width: 64%;
            background: linear-gradient(90deg, #FFE066, #FFD700);
            border-radius: 20px;
        }
        .group-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .group-actions .btn {
            flex: 1 1 140px;
        }
        .hero-cta-row {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .hero-stats {
            display: flex;
            gap: 30px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .stat-item {
            text-align: center;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-mint);
        }
        /* Sections common */
        .section {
            position: relative;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
            margin-top: 28px;
        }
        .feature-item {
            background: rgba(18,62,37,0.6);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            font-size: 2.4rem;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }
        .feature-item h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: var(--text-white);
        }
        .feature-item p {
            font-size: 0.95rem;
            color: var(--text-muted);
        }
        /* News list */
        .news-layout {
            display: flex;
            gap: 40px;
            margin-top: 28px;
            align-items: flex-start;
        }
        .news-list {
            flex: 1 1 60%;
        }
        .news-item {
            padding: 18px 0;
            border-bottom: 1px solid var(--border-subtle);
            display: block;
            color: inherit;
        }
        .news-item:hover .news-title {
            color: var(--accent-gold);
        }
        .news-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
            transition: color var(--transition);
        }
        .news-meta {
            font-size: 0.85rem;
            color: var(--text-mint);
            display: flex;
            gap: 12px;
            margin-bottom: 8px;
        }
        .news-summary {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .news-sidebar {
            flex: 0 0 300px;
        }
        .sidebar-card {
            background: rgba(18,62,37,0.6);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .sidebar-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .sidebar-card-body {
            padding: 20px;
        }
        .sidebar-card-body h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--text-white);
        }
        .sidebar-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        /* Payment methods */
        .payment-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 24px;
        }
        .payment-badge {
            background: rgba(255,255,255,0.08);
            border: 1px solid var(--border-subtle);
            border-radius: 40px;
            padding: 10px 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            color: var(--text-white);
            transition: background var(--transition), border-color var(--transition);
        }
        .payment-badge i {
            color: var(--accent-gold);
            font-size: 1.5rem;
        }
        .payment-badge:hover {
            background: rgba(255,215,0,0.12);
            border-color: var(--accent-gold);
        }
        /* App download */
        .app-buttons {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 28px;
        }
        .app-btn {
            display: inline-flex;
            align-items: center;
            gap: 14px;
            background: var(--secondary-bg);
            border: 1px solid var(--border-subtle);
            padding: 14px 28px;
            border-radius: var(--radius-md);
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.1rem;
            transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
        }
        .app-btn i {
            font-size: 2rem;
            color: var(--accent-gold);
        }
        .app-btn:hover {
            transform: translateY(-3px);
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }
        /* FAQ */
        .faq-list details {
            background: rgba(18,62,37,0.6);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            padding: 0 20px;
            transition: border-color var(--transition);
        }
        .faq-list details[open] {
            border-color: var(--accent-gold);
        }
        .faq-list summary {
            padding: 18px 0;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            color: var(--text-white);
            list-style: none;
            position: relative;
            padding-right: 30px;
        }
        .faq-list summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            color: var(--accent-gold);
            transition: transform var(--transition);
        }
        .faq-list details[open] summary::after {
            transform: translateY(-50%) rotate(180deg);
        }
        .faq-list .faq-answer {
            padding: 0 0 18px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        /* Media scroll */
        .media-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 16px;
            scrollbar-width: thin;
            scrollbar-color: var(--accent-gold) rgba(255,255,255,0.1);
        }
        .media-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .media-scroll::-webkit-scrollbar-track {
            background: rgba(255,255,255,0.1);
            border-radius: 10px;
        }
        .media-scroll::-webkit-scrollbar-thumb {
            background: var(--accent-gold);
            border-radius: 10px;
        }
        .media-card {
            flex: 0 0 260px;
            background: var(--secondary-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition), border-color var(--transition);
        }
        .media-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent-gold);
        }
        .media-card img {
            width: 100%;
            height: 140px;
            object-fit: cover;
        }
        .media-card-body {
            padding: 16px;
        }
        .media-card-body h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
        }
        .media-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        /* Task progress */
        .task-progress {
            background: rgba(18,62,37,0.6);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px;
            margin-top: 28px;
        }
        .task-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }
        .task-step {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .step-indicator {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255,255,255,0.1);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--accent-gold);
            flex-shrink: 0;
        }
        .step-info {
            font-size: 0.95rem;
            color: var(--text-mint);
        }
        .step-info strong {
            display: block;
            color: var(--text-white);
        }
        /* Footer */
        footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 30px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }
        .footer-brand p {
            color: var(--text-muted);
            margin-top: 12px;
            font-size: 0.95rem;
        }
        .footer-links h4 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            color: var(--accent-gold);
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links ul li {
            margin-bottom: 10px;
        }
        .footer-links ul li a {
            color: var(--text-mint);
            font-size: 0.95rem;
        }
        .footer-links ul li a:hover {
            color: var(--accent-gold);
        }
        .footer-payment {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 16px;
        }
        .footer-payment span {
            background: rgba(255,255,255,0.1);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-white);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        /* Fixed bottom bar */
        .fixed-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(10,46,28,0.96);
            backdrop-filter: blur(8px);
            border-top: 1px solid var(--accent-gold);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .fixed-bottom-bar p {
            font-size: 0.95rem;
            color: var(--text-white);
        }
        .fixed-bottom-bar .btn {
            padding: 10px 20px;
            font-size: 0.9rem;
        }
        /* FAB */
        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 90px;
            z-index: 1000;
            width: 56px;
            height: 56px;
            background: radial-gradient(circle at 30% 30%, #3a3a3a, #0A2E1C);
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            box-shadow: var(--shadow-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-gold);
            cursor: pointer;
            opacity: 0.75;
            transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
            animation: floatY 3s ease-in-out infinite;
        }
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 25px rgba(255,215,0,0.5);
        }
        .fab-left:active {
            transform: scale(0.95) translateY(2px);
        }
        .fab-left .notification-dot {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            background: #ff1a1a;
            border-radius: 50%;
            border: 2px solid white;
            animation: blink 1.2s infinite;
        }
        @keyframes floatY {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .nav-menu {
                gap: 18px;
            }
        }
        @media (max-width: 768px) {
            .navbar-inner {
                height: 64px;
            }
            .hero {
                margin-top: 64px;
                min-height: 70vh;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .nav-menu {
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(10,46,28,0.98);
                flex-direction: column;
                padding: 20px;
                gap: 12px;
                display: none;
                border-bottom: 2px solid var(--accent-gold);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-auth {
                margin-left: 0;
                gap: 8px;
            }
            .nav-toggle {
                display: block;
            }
            .news-layout {
                flex-direction: column;
            }
            .news-sidebar {
                width: 100%;
                flex: 1 1 auto;
            }
            .fixed-bottom-bar {
                flex-direction: column;
                text-align: center;
                padding: 10px 16px;
            }
            .fixed-bottom-bar p {
                font-size: 0.85rem;
            }
            .fab-left {
                bottom: 110px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-group-module {
                padding: 20px 16px;
            }
            .hero-cta-row {
                flex-direction: column;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .task-steps {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: rgba(255,255,255,0.8);
            --border-subtle: rgba(255,255,255,0.12);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
            --shadow-md: 0 6px 18px rgba(0,0,0,0.3);
            --shadow-gold: 0 4px 20px rgba(255,215,0,0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --font-family: 'Be Vietnam Pro', sans-serif;
            --transition: 0.25s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            padding-bottom: 80px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--text-mint);
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
        }
        ul, ol {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: 60px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--text-white);
            letter-spacing: -0.5px;
            line-height: 1.25;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-mint);
            margin-bottom: 36px;
            max-width: 650px;
            line-height: 1.6;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            text-transform: none;
            border: none;
            cursor: pointer;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }
        .btn:focus-visible {
            outline: 3px solid var(--accent-gold);
            outline-offset: 2px;
        }
        .btn-gold {
            background: linear-gradient(145deg, #FFE066, #FFD700);
            color: #0A2E1C;
            box-shadow: 0 4px 14px rgba(255,215,0,0.4);
        }
        .btn-gold:hover {
            background: linear-gradient(145deg, #FFE680, #FFD700);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255,215,0,0.55);
            color: #0A2E1C;
        }
        .btn-red {
            background: linear-gradient(145deg, #E64A45, var(--accent-red));
            color: #fff;
            box-shadow: 0 4px 14px rgba(211,47,47,0.4);
        }
        .btn-red:hover {
            background: linear-gradient(145deg, #E64A45, #B71C1C);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(211,47,47,0.55);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
        }
        .btn-outline:hover {
            background: rgba(255,215,0,0.12);
            transform: translateY(-2px);
            color: var(--accent-gold);
        }
        .btn-lg {
            padding: 15px 32px;
            font-size: 1.05rem;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
        }
        /* Header */
        header.navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
        }
        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .logo span {
            color: #fff;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
        }
        .nav-menu li a {
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 8px 4px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
        }
        .nav-menu li a:hover,
        .nav-menu li a.active {
            color: var(--accent-gold);
            border-bottom-color: var(--accent-gold);
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 20px;
        }
        .nav-auth .btn {
            padding: 8px 16px;
            font-size: 0.85rem;
        }
        .nav-auth .btn-text {
            background: transparent;
            border: none;
            color: var(--text-white);
            font-weight: 600;
            padding: 8px 12px;
            cursor: pointer;
        }
        .nav-auth .btn-text:hover {
            color: var(--accent-gold);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px;
        }
        /* Hero - Category Page */
        .hero-category {
            min-height: 520px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            margin-top: 72px;
            padding: 60px 0;
        }
        .hero-category::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10,46,28,0.95) 0%, rgba(18,62,37,0.85) 55%, rgba(10,46,28,0.8) 100%);
        }
        .hero-category .container {
            position: relative;
            z-index: 2;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .hero-left h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
            color: var(--text-white);
        }
        .hero-left h1 .highlight {
            color: var(--accent-gold);
        }
        .hero-left .hero-desc {
            font-size: 1.05rem;
            color: var(--text-mint);
            line-height: 1.65;
            margin-bottom: 28px;
            max-width: 520px;
        }
        .hero-left .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .hero-right .data-panel {
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,215,0,0.25);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .data-panel h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .data-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .data-row:last-child {
            border-bottom: none;
        }
        .data-row .label {
            color: var(--text-mint);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .data-row .value {
            font-weight: 700;
            color: var(--accent-gold);
            font-size: 1rem;
        }
        .data-row .badge-verified {
            background: rgba(255,215,0,0.15);
            color: var(--accent-gold);
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
        }
        /* Breadcrumb */
        .breadcrumb {
            padding: 20px 0;
            border-bottom: 1px solid var(--border-subtle);
            background: rgba(10, 46, 28, 0.6);
        }
        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-mint);
            font-size: 0.85rem;
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--accent-gold);
        }
        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        .breadcrumb .current {
            color: var(--accent-gold);
            font-size: 0.85rem;
            font-weight: 600;
        }
        /* Section: Intro / Overview */
        .intro-content {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .intro-text h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .intro-text p {
            color: var(--text-mint);
            line-height: 1.65;
            margin-bottom: 16px;
            font-size: 1rem;
        }
        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-subtle);
        }
        .intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }
        /* Criteria List Section */
        .criteria-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .criteria-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
        }
        .criteria-card:hover {
            border-color: rgba(255,215,0,0.4);
            box-shadow: 0 8px 24px rgba(0,0,0,0.25);
            transform: translateY(-3px);
        }
        .criteria-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255,215,0,0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }
        .criteria-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        .criteria-card p {
            font-size: 0.9rem;
            color: var(--text-mint);
            line-height: 1.6;
        }
        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .step-item {
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            position: relative;
            text-align: left;
            transition: border-color var(--transition);
        }
        .step-item:hover {
            border-color: rgba(255,215,0,0.35);
        }
        .step-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-gold);
            opacity: 0.7;
            line-height: 1;
            margin-bottom: 10px;
            display: block;
        }
        .step-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--text-mint);
            line-height: 1.55;
        }
        /* Trust / Social Proof */
        .trust-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .stat-box {
            text-align: left;
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 22px 20px;
        }
        .stat-box .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-box .stat-label {
            font-size: 0.85rem;
            color: var(--text-mint);
        }
        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin-top: 32px;
        }
        .faq-item {
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            background: rgba(255,255,255,0.03);
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(255,215,0,0.3);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question .faq-icon {
            color: var(--accent-gold);
            font-size: 1rem;
            flex-shrink: 0;
            transition: transform var(--transition);
        }
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 22px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            color: var(--text-mint);
            font-size: 0.9rem;
            line-height: 1.65;
        }
        /* CTA Section */
        .cta-section {
            background: linear-gradient(145deg, rgba(255,215,0,0.08), rgba(211,47,47,0.06));
            border: 1px solid rgba(255,215,0,0.25);
            border-radius: var(--radius-lg);
            padding: 48px 36px;
            text-align: left;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,215,0,0.12), transparent 70%);
        }
        .cta-section h2 {
            font-size: 1.7rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-white);
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: var(--text-mint);
            margin-bottom: 24px;
            font-size: 1rem;
            position: relative;
            z-index: 1;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }
        /* Footer */
        footer {
            background: #071f13;
            padding: 48px 0 24px;
            border-top: 1px solid var(--border-subtle);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand p {
            color: var(--text-mint);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-top: 14px;
            margin-bottom: 16px;
            max-width: 340px;
        }
        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-payment span {
            background: rgba(255,215,0,0.1);
            border: 1px solid rgba(255,215,0,0.25);
            color: var(--accent-gold);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
        }
        .footer-links h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }
        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: var(--text-mint);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-gold);
        }
        .footer-links span {
            font-size: 0.9rem;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            text-align: left;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        /* Fixed bottom bar */
        .fixed-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255,215,0,0.3);
            padding: 12px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .fixed-bottom-bar .bar-text {
            color: var(--text-mint);
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .fixed-bottom-bar .bar-actions {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }
        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: #0A2E1C;
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            animation: fabFloat 3s ease-in-out infinite;
            text-decoration: none;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .fab:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(255,215,0,0.5);
            color: var(--accent-gold);
        }
        .fab:active {
            transform: scale(0.95);
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        .fab .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: dotBlink 2s ease-in-out infinite;
        }
        @keyframes dotBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-category {
                min-height: auto;
                padding: 50px 0;
            }
            .hero-left h1 {
                font-size: 2rem;
            }
            .criteria-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .intro-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.97);
                flex-direction: column;
                padding: 20px;
                gap: 0;
                display: none;
                border-bottom: 1px solid var(--border-subtle);
                max-height: 70vh;
                overflow-y: auto;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu li a {
                display: block;
                padding: 12px 8px;
                font-size: 1rem;
                border-bottom: 1px solid rgba(255,255,255,0.06);
                white-space: normal;
            }
            .nav-menu li a.active,
            .nav-menu li a:hover {
                border-bottom-color: transparent;
                color: var(--accent-gold);
            }
            .nav-auth {
                margin-left: auto;
                gap: 4px;
            }
            .nav-auth .btn-text {
                font-size: 0.8rem;
                padding: 8px 8px;
            }
            .nav-auth .btn-gold {
                font-size: 0.8rem;
                padding: 8px 12px;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .hero-left h1 {
                font-size: 1.7rem;
            }
            .hero-category {
                margin-top: 72px;
                padding: 36px 0;
            }
            .criteria-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .trust-stats {
                grid-template-columns: 1fr 1fr;
            }
            .cta-section {
                padding: 32px 22px;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .fixed-bottom-bar {
                padding: 10px 0;
            }
            .fixed-bottom-bar .bar-text {
                font-size: 0.75rem;
                max-width: 45%;
            }
            .fixed-bottom-bar .btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .fab {
                bottom: 88px;
                left: 12px;
                width: 46px;
                height: 46px;
                font-size: 1rem;
            }
            .data-panel {
                padding: 20px;
            }
        }
        @media (max-width: 520px) {
            .hero-left h1 {
                font-size: 1.4rem;
            }
            .hero-left .hero-desc {
                font-size: 0.9rem;
            }
            .hero-left .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-left .hero-actions .btn {
                width: 100%;
            }
            .trust-stats {
                grid-template-columns: 1fr;
            }
            .nav-auth .btn-text {
                display: none;
            }
            .nav-auth .btn-gold {
                padding: 6px 14px;
                font-size: 0.78rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .fixed-bottom-bar .bar-text {
                font-size: 0.7rem;
            }
            .fixed-bottom-bar .btn {
                padding: 6px 10px;
                font-size: 0.72rem;
            }
        }

/* roulang page: article */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: rgba(255,255,255,0.8);
            --border-subtle: rgba(255,255,255,0.12);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
            --shadow-md: 0 6px 18px rgba(0,0,0,0.3);
            --shadow-gold: 0 4px 20px rgba(255,215,0,0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --font-family: 'Be Vietnam Pro', sans-serif;
            --transition: 0.25s ease;
        }

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

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

        body {
            font-family: var(--font-family);
            background-color: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            padding-bottom: 72px;
        }

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

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

        a:hover {
            color: var(--text-mint);
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

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

        .section {
            padding: 64px 0;
        }

        .section-title {
            font-size: 2.1rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text-white);
            letter-spacing: -0.5px;
            text-align: left;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-mint);
            margin-bottom: 32px;
            max-width: 720px;
            text-align: left;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            text-transform: none;
            border: none;
            cursor: pointer;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 3px solid var(--accent-gold);
            outline-offset: 2px;
        }

        .btn-gold {
            background: linear-gradient(145deg, #FFE066, #FFD700);
            color: #0A2E1C;
            box-shadow: 0 4px 14px rgba(255,215,0,0.4);
        }

        .btn-gold:hover {
            background: linear-gradient(145deg, #FFE680, #FFD700);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255,215,0,0.55);
        }

        .btn-red {
            background: linear-gradient(145deg, #E64A45, var(--accent-red));
            color: #fff;
            box-shadow: 0 4px 14px rgba(211,47,47,0.4);
        }

        .btn-red:hover {
            background: linear-gradient(145deg, #E64A45, #B71C1C);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(211,47,47,0.55);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
        }

        .btn-outline:hover {
            background: rgba(255,215,0,0.12);
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 15px 32px;
            font-size: 1.05rem;
        }

        /* Header */
        header.navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-subtle);
        }

        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .logo span {
            color: #fff;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-menu li a {
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 4px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
        }

        .nav-menu li a:hover,
        .nav-menu li a.active {
            color: var(--accent-gold);
            border-bottom-color: var(--accent-gold);
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 20px;
        }

        .nav-auth .btn {
            padding: 8px 16px;
            font-size: 0.9rem;
        }

        .nav-auth .btn-text {
            background: transparent;
            border: none;
            color: var(--text-white);
            font-weight: 600;
            padding: 8px 12px;
        }

        .nav-auth .btn-text:hover {
            color: var(--accent-gold);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Article Hero */
        .article-hero {
            min-height: 52vh;
            display: flex;
            align-items: flex-end;
            background-image: linear-gradient(to top, rgba(10,46,28,0.98) 0%, rgba(10,46,28,0.85) 40%, rgba(10,46,28,0.6) 100%), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            margin-top: 72px;
            padding: 80px 0 48px;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 6px;
            background: linear-gradient(90deg, var(--accent-gold) 0%, var(--accent-red) 50%, var(--accent-gold) 100%);
        }

        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-mint);
            margin-bottom: 16px;
        }

        .article-hero .breadcrumb a {
            color: var(--accent-gold);
        }

        .article-hero .breadcrumb .sep {
            color: var(--text-muted);
        }

        .article-hero .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,215,0,0.15);
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            width: fit-content;
        }

        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            max-width: 900px;
        }

        .article-hero .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.9rem;
            color: var(--text-mint);
        }

        .article-hero .article-meta i {
            color: var(--accent-gold);
            margin-right: 6px;
        }

        /* Article Content */
        .article-layout {
            display: flex;
            gap: 40px;
            padding: 56px 0;
        }

        .article-main {
            flex: 1;
            max-width: 820px;
        }

        .article-sidebar {
            width: 320px;
            flex-shrink: 0;
            position: sticky;
            top: 100px;
            align-self: flex-start;
        }

        .article-content {
            font-size: 1.08rem;
            line-height: 1.7;
            color: var(--text-mint);
        }

        .article-content h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 36px 0 16px;
            letter-spacing: -0.3px;
        }

        .article-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 28px 0 12px;
        }

        .article-content h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 24px 0 10px;
        }

        .article-content p {
            margin-bottom: 16px;
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0 16px 24px;
        }

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

        .article-content blockquote {
            margin: 28px 0;
            padding: 24px 28px;
            background: rgba(255,215,0,0.08);
            border-left: 4px solid var(--accent-gold);
            border-radius: var(--radius-md);
            font-style: italic;
            font-size: 1.2rem;
            color: var(--text-white);
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            width: 100%;
        }

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

        .article-content a:hover {
            color: var(--text-mint);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
        }

        .article-content table th,
        .article-content table td {
            padding: 12px 16px;
            border: 1px solid var(--border-subtle);
            text-align: left;
        }

        .article-content table th {
            background: var(--secondary-bg);
            color: var(--accent-gold);
            font-weight: 700;
        }

        .article-content table tr:nth-child(even) {
            background: rgba(255,255,255,0.03);
        }

        /* Article not found */
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            background: var(--secondary-bg);
            border-radius: var(--radius-lg);
            margin: 40px 0;
        }

        .article-not-found i {
            font-size: 3rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }

        .article-not-found h2 {
            font-size: 1.6rem;
            margin-bottom: 12px;
        }

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

        /* Sidebar Widget */
        .sidebar-widget {
            background: var(--secondary-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 20px;
        }

        .sidebar-widget h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-widget ul {
            list-style: none;
        }

        .sidebar-widget ul li {
            margin-bottom: 10px;
        }

        .sidebar-widget ul li a {
            color: var(--text-mint);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
        }

        .sidebar-widget ul li a:hover {
            color: var(--accent-gold);
        }

        .sidebar-widget ul li a i {
            color: var(--accent-gold);
            font-size: 0.8rem;
        }

        /* Related Categories */
        .related-cats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            padding: 48px 0;
        }

        .related-cat-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(255,215,0,0.25);
            background: var(--secondary-bg);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            display: block;
        }

        .related-cat-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.4), 0 0 20px rgba(255,215,0,0.15);
            border-color: var(--accent-gold);
        }

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

        .related-cat-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10,46,28,0.95) 0%, rgba(10,46,28,0.4) 60%, transparent 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
        }

        .related-cat-card .overlay h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .related-cat-card .overlay span {
            font-size: 0.85rem;
            color: var(--accent-gold);
            font-weight: 600;
        }

        /* FAQ */
        .faq-grid {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--secondary-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(255,215,0,0.4);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 16px;
        }

        .faq-question i {
            color: var(--accent-gold);
            transition: transform var(--transition);
            font-size: 1.2rem;
        }

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

        .faq-answer {
            padding: 0 22px 18px;
            color: var(--text-mint);
            font-size: 0.95rem;
            display: none;
            line-height: 1.65;
        }

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

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary-bg) 0%, #0A2E1C 100%);
            border: 1px solid rgba(255,215,0,0.3);
            border-radius: var(--radius-lg);
            padding: 48px;
            margin-bottom: 60px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(255,215,0,0.2) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-section h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: #fff;
        }

        .cta-section p {
            color: var(--text-mint);
            margin-bottom: 24px;
            max-width: 600px;
        }

        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* Pull Quote */
        .pull-quote-section {
            max-width: 820px;
            margin: 0 auto;
            padding: 40px 0;
        }

        .pull-quote {
            font-size: 1.5rem;
            font-weight: 700;
            line-height: 1.5;
            color: var(--accent-gold);
            border-left: 4px solid var(--accent-gold);
            padding-left: 24px;
            font-style: italic;
        }

        /* Footer */
        footer {
            background: #062315;
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .logo {
            display: inline-block;
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: var(--text-mint);
            font-size: 0.9rem;
            margin-bottom: 16px;
            max-width: 340px;
        }

        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-payment span {
            background: rgba(255,215,0,0.12);
            border: 1px solid rgba(255,215,0,0.3);
            color: var(--accent-gold);
            padding: 6px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .footer-links h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links ul li {
            margin-bottom: 10px;
        }

        .footer-links ul li a,
        .footer-links ul li span {
            color: var(--text-mint);
            font-size: 0.92rem;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* FAB */
        .fab-royal {
            position: fixed;
            left: 20px;
            bottom: 104px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1C1C1E, #0A0A0A);
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1.5rem;
            text-decoration: none;
            transition: transform var(--transition), opacity var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            animation: fab-breathe 3s ease-in-out infinite;
            opacity: 0.7;
        }

        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(255,215,0,0.5);
        }

        .fab-royal:active {
            transform: scale(0.95) translateY(2px);
        }

        .fab-royal .fab-icon {
            transition: transform 0.5s ease;
        }

        .fab-royal:hover .fab-icon {
            transform: rotate(360deg);
        }

        .fab-royal .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #FF1744;
            border: 2px solid #fff;
            animation: fab-blink 1.5s ease-in-out infinite;
        }

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

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

        /* Bottom Fixed Conversion Bar */
        .bottom-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 900;
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255,215,0,0.4);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 72px;
        }

        .bottom-cta-bar .cta-text {
            flex: 1;
            min-width: 0;
        }

        .bottom-cta-bar .cta-text strong {
            color: var(--accent-gold);
            font-size: 0.95rem;
            display: block;
            margin-bottom: 2px;
        }

        .bottom-cta-bar .cta-text span {
            color: var(--text-mint);
            font-size: 0.82rem;
        }

        .bottom-cta-bar .cta-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .bottom-cta-bar .btn {
            padding: 10px 20px;
            font-size: 0.88rem;
        }

        .bottom-cta-bar .btn-close {
            background: none;
            border: none;
            color: var(--text-mint);
            cursor: pointer;
            font-size: 1rem;
            padding: 4px 8px;
            transition: color var(--transition);
        }

        .bottom-cta-bar .btn-close:hover {
            color: var(--accent-gold);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }

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

            .article-sidebar {
                width: 100%;
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .related-cats {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
                gap: 12px;
                border-bottom: 1px solid var(--border-subtle);
                display: none;
                z-index: 999;
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-menu li {
                width: 100%;
            }

            .nav-menu li a {
                display: block;
                width: 100%;
                padding: 10px 4px;
                font-size: 1.05rem;
            }

            .nav-toggle {
                display: block;
            }

            .nav-auth {
                margin-left: auto;
                gap: 6px;
            }

            .nav-auth .btn {
                padding: 6px 12px;
                font-size: 0.82rem;
            }

            .nav-auth .btn-text {
                padding: 6px 10px;
            }

            .article-hero {
                min-height: 44vh;
                padding: 56px 0 36px;
                margin-top: 72px;
            }

            .article-hero h1 {
                font-size: 1.8rem;
            }

            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 1.7rem;
            }

            .related-cats {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .cta-section {
                padding: 32px 24px;
            }

            .cta-section h3 {
                font-size: 1.4rem;
            }

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

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

            .article-content {
                font-size: 1rem;
            }

            .article-content h2 {
                font-size: 1.5rem;
            }

            .pull-quote {
                font-size: 1.2rem;
            }

            .bottom-cta-bar {
                flex-direction: column;
                align-items: stretch;
                padding: 12px 16px;
                gap: 10px;
                text-align: center;
            }

            .bottom-cta-bar .cta-actions {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

            .navbar-inner {
                height: 64px;
            }

            header.navbar {
                top: 0;
            }

            .logo {
                font-size: 1.25rem;
            }

            .article-hero {
                margin-top: 64px;
                min-height: 40vh;
            }

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

            .article-hero .article-meta {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }

            .section {
                padding: 36px 0;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .cta-buttons {
                flex-direction: column;
            }

            .cta-buttons .btn {
                width: 100%;
            }

            .fab-royal {
                width: 48px;
                height: 48px;
                left: 14px;
                bottom: 100px;
                font-size: 1.3rem;
            }

            .bottom-cta-bar {
                min-height: 64px;
                padding: 8px 12px;
            }

            .bottom-cta-bar .btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category2 */
/* ========== DESIGN SYSTEM VARIABLES ========== */
    :root {
        --primary-bg: #0A2E1C;
        --secondary-bg: #123E25;
        --accent-gold: #FFD700;
        --accent-red: #D32F2F;
        --text-white: #FFFFFF;
        --text-mint: #D1F2EB;
        --text-muted: rgba(255, 255, 255, 0.8);
        --border-subtle: rgba(255, 255, 255, 0.12);
        --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
        --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.3);
        --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
        --radius-sm: 8px;
        --radius-md: 14px;
        --radius-lg: 20px;
        --font-family: 'Be Vietnam Pro', sans-serif;
        --transition: 0.25s ease;
    }

    /* ========== BASE RESET ========== */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
        font-size: 16px;
    }
    body {
        font-family: var(--font-family);
        background-color: var(--primary-bg);
        color: var(--text-white);
        line-height: 1.6;
        overflow-x: hidden;
        min-height: 100vh;
        padding-bottom: 72px;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    a {
        color: var(--accent-gold);
        text-decoration: none;
        transition: color var(--transition);
    }
    a:hover {
        color: var(--text-mint);
    }
    button, input, textarea, select {
        font-family: inherit;
        font-size: inherit;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }
    .section {
        padding: 72px 0;
    }
    .section-title {
        font-size: 2.2rem;
        font-weight: 800;
        margin-bottom: 12px;
        color: var(--text-white);
        letter-spacing: -0.5px;
        text-align: left;
    }
    .section-subtitle {
        font-size: 1.1rem;
        color: var(--text-mint);
        margin-bottom: 32px;
        max-width: 650px;
        text-align: left;
    }

    /* ========== BUTTONS ========== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 24px;
        border-radius: 50px;
        font-weight: 700;
        font-size: 0.95rem;
        text-transform: none;
        border: none;
        cursor: pointer;
        transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
        white-space: nowrap;
    }
    .btn:focus-visible {
        outline: 3px solid var(--accent-gold);
        outline-offset: 2px;
    }
    .btn-gold {
        background: linear-gradient(145deg, #FFE066, #FFD700);
        color: #0A2E1C;
        box-shadow: 0 4px 14px rgba(255, 215, 0, 0.4);
    }
    .btn-gold:hover {
        background: linear-gradient(145deg, #FFE680, #FFD700);
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(255, 215, 0, 0.55);
    }
    .btn-red {
        background: linear-gradient(145deg, #E64A45, var(--accent-red));
        color: #fff;
        box-shadow: 0 4px 14px rgba(211, 47, 47, 0.4);
    }
    .btn-red:hover {
        background: linear-gradient(145deg, #E64A45, #B71C1C);
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(211, 47, 47, 0.55);
    }
    .btn-outline {
        background: transparent;
        border: 2px solid var(--accent-gold);
        color: var(--accent-gold);
    }
    .btn-outline:hover {
        background: rgba(255, 215, 0, 0.12);
        transform: translateY(-2px);
    }
    .btn-lg {
        padding: 15px 32px;
        font-size: 1.05rem;
    }

    /* ========== HEADER / NAVBAR ========== */
    header.navbar {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: rgba(10, 46, 28, 0.92);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border-subtle);
    }
    .navbar-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
    }
    .logo {
        font-size: 1.6rem;
        font-weight: 800;
        color: var(--accent-gold);
        text-decoration: none;
        letter-spacing: -0.5px;
        white-space: nowrap;
    }
    .logo span {
        color: #fff;
    }
    .nav-menu {
        display: flex;
        align-items: center;
        gap: 28px;
        list-style: none;
    }
    .nav-menu li a {
        color: var(--text-white);
        font-weight: 600;
        font-size: 1rem;
        padding: 8px 4px;
        border-bottom: 2px solid transparent;
        transition: color var(--transition), border-color var(--transition);
    }
    .nav-menu li a:hover,
    .nav-menu li a.active {
        color: var(--accent-gold);
        border-bottom-color: var(--accent-gold);
    }
    .nav-auth {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-left: 20px;
    }
    .nav-auth .btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    .nav-auth .btn-text {
        background: transparent;
        border: none;
        color: var(--text-white);
        font-weight: 600;
        padding: 8px 12px;
    }
    .nav-auth .btn-text:hover {
        color: var(--accent-gold);
    }
    .nav-toggle {
        display: none;
        background: none;
        border: none;
        color: var(--accent-gold);
        font-size: 1.8rem;
        cursor: pointer;
    }

    /* ========== PAGE HERO ========== */
    .page-hero {
        min-height: 50vh;
        display: flex;
        align-items: center;
        background-image: url('/assets/images/backpic/back-2.jpg');
        background-size: cover;
        background-position: center;
        position: relative;
        margin-top: 72px;
        padding: 60px 0 40px;
    }
    .page-hero::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(10, 46, 28, 0.97) 0%, rgba(18, 62, 37, 0.88) 55%, rgba(10, 46, 28, 0.95) 100%);
    }
    .page-hero .container {
        position: relative;
        z-index: 2;
    }
    .page-hero h1 {
        font-size: 2.6rem;
        font-weight: 800;
        letter-spacing: -0.5px;
        margin-bottom: 16px;
        color: var(--text-white);
        text-align: left;
        max-width: 800px;
    }
    .page-hero .hero-desc {
        font-size: 1.1rem;
        color: var(--text-mint);
        margin-bottom: 24px;
        max-width: 680px;
        text-align: left;
    }
    .hero-icon-matrix {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        margin-bottom: 20px;
    }
    .hero-icon-matrix .icon-chip {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid var(--border-subtle);
        border-radius: 50px;
        padding: 8px 16px;
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--text-white);
    }
    .hero-icon-matrix .icon-chip i {
        color: var(--accent-gold);
    }
    .hero-status-bar {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        align-items: center;
        background: rgba(0, 0, 0, 0.35);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 16px 20px;
        backdrop-filter: blur(8px);
    }
    .hero-status-bar .status-item {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 0.9rem;
        color: var(--text-mint);
    }
    .hero-status-bar .status-item i {
        color: #32CD32;
        font-size: 1.1rem;
    }
    .hero-status-bar .status-divider {
        width: 1px;
        height: 28px;
        background: var(--border-subtle);
    }

    /* ========== RATING DETAIL SECTION ========== */
    .rating-detail-section {
        padding: 60px 0;
    }
    .rating-detail-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 28px;
    }
    .rating-detail-card {
        display: flex;
        gap: 18px;
        align-items: flex-start;
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 22px 24px;
        transition: border-color var(--transition), background var(--transition);
    }
    .rating-detail-card:hover {
        border-color: var(--accent-gold);
        background: rgba(255, 215, 0, 0.05);
    }
    .rating-detail-card .rating-rank {
        flex-shrink: 0;
        width: 48px;
        height: 48px;
        border-radius: 50%;
        background: linear-gradient(145deg, #FFE066, var(--accent-gold));
        color: #0A2E1C;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 800;
        font-size: 1.3rem;
    }
    .rating-detail-card .rating-body h3 {
        font-size: 1.2rem;
        font-weight: 700;
        margin-bottom: 6px;
    }
    .rating-detail-card .rating-body p {
        color: var(--text-mint);
        font-size: 0.95rem;
        margin-bottom: 10px;
    }
    .rating-detail-card .rating-stars {
        color: var(--accent-gold);
        font-size: 0.9rem;
        margin-bottom: 8px;
    }
    .rating-detail-card .rating-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .rating-detail-card .rating-tags span {
        display: inline-block;
        background: rgba(255, 215, 0, 0.12);
        border: 1px solid rgba(255, 215, 0, 0.3);
        border-radius: 50px;
        padding: 4px 12px;
        font-size: 0.8rem;
        font-weight: 600;
        color: var(--accent-gold);
    }

    /* ========== CRITERIA SECTION (ASYMETRIC) ========== */
    .criteria-section {
        background: var(--secondary-bg);
        padding: 64px 0;
    }
    .criteria-wrap {
        display: grid;
        grid-template-columns: 1fr 1.4fr;
        gap: 40px;
        align-items: start;
    }
    .criteria-intro h2 {
        font-size: 1.9rem;
        font-weight: 800;
        margin-bottom: 14px;
    }
    .criteria-intro p {
        color: var(--text-mint);
        font-size: 1rem;
        line-height: 1.7;
    }
    .criteria-list {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 14px;
    }
    .criteria-item {
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-sm);
        padding: 14px 16px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .criteria-item i {
        color: var(--accent-gold);
        font-size: 1.1rem;
        flex-shrink: 0;
    }
    .criteria-item span {
        font-size: 0.92rem;
        font-weight: 500;
        color: var(--text-white);
    }

    /* ========== COMPARISON TABLE (STYLED) ========== */
    .comparison-section {
        padding: 64px 0;
    }
    .comparison-table-wrap {
        overflow-x: auto;
        margin-top: 24px;
        border-radius: var(--radius-md);
        border: 1px solid var(--border-subtle);
        background: rgba(255, 255, 255, 0.03);
    }
    .comparison-table {
        width: 100%;
        min-width: 720px;
        border-collapse: collapse;
        font-size: 0.92rem;
    }
    .comparison-table th {
        background: rgba(255, 215, 0, 0.12);
        padding: 14px 16px;
        text-align: left;
        font-weight: 700;
        color: var(--accent-gold);
        border-bottom: 2px solid var(--accent-gold);
        white-space: nowrap;
    }
    .comparison-table td {
        padding: 12px 16px;
        border-bottom: 1px solid var(--border-subtle);
        color: var(--text-mint);
        vertical-align: top;
    }
    .comparison-table tr:hover td {
        background: rgba(255, 255, 255, 0.04);
    }
    .comparison-table .highlight {
        color: var(--accent-gold);
        font-weight: 700;
    }
    .comparison-table .badge-green {
        display: inline-block;
        background: rgba(50, 205, 50, 0.18);
        color: #32CD32;
        border: 1px solid rgba(50, 205, 50, 0.4);
        border-radius: 50px;
        padding: 2px 10px;
        font-size: 0.8rem;
        font-weight: 600;
    }
    .comparison-table .badge-red {
        display: inline-block;
        background: rgba(211, 47, 47, 0.18);
        color: #FF6B6B;
        border: 1px solid rgba(211, 47, 47, 0.4);
        border-radius: 50px;
        padding: 2px 10px;
        font-size: 0.8rem;
        font-weight: 600;
    }

    /* ========== TESTIMONIAL SECTION ========== */
    .testimonial-section {
        background: var(--secondary-bg);
        padding: 64px 0;
    }
    .testimonial-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
        margin-top: 24px;
    }
    .testimonial-card {
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 24px 22px;
        transition: border-color var(--transition), transform var(--transition);
    }
    .testimonial-card:hover {
        border-color: var(--accent-gold);
        transform: translateY(-4px);
    }
    .testimonial-card .quote-icon {
        color: var(--accent-gold);
        font-size: 1.5rem;
        margin-bottom: 12px;
    }
    .testimonial-card p {
        color: var(--text-mint);
        font-size: 0.95rem;
        line-height: 1.7;
        margin-bottom: 14px;
    }
    .testimonial-card .user-info {
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .testimonial-card .user-avatar {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: linear-gradient(145deg, #FFE066, var(--accent-gold));
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 800;
        color: #0A2E1C;
        font-size: 1rem;
    }
    .testimonial-card .user-name {
        font-weight: 700;
        font-size: 0.9rem;
        color: var(--text-white);
    }
    .testimonial-card .user-role {
        font-size: 0.8rem;
        color: var(--text-muted);
    }

    /* ========== FAQ SECTION ========== */
    .faq-section {
        padding: 64px 0;
    }
    .faq-list {
        max-width: 800px;
        margin-top: 24px;
    }
    .faq-item {
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-sm);
        margin-bottom: 12px;
        overflow: hidden;
        background: rgba(255, 255, 255, 0.03);
        transition: border-color var(--transition);
    }
    .faq-item:hover {
        border-color: rgba(255, 215, 0, 0.4);
    }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 20px;
        cursor: pointer;
        font-weight: 700;
        font-size: 1rem;
        color: var(--text-white);
        transition: color var(--transition);
        user-select: none;
    }
    .faq-question:hover {
        color: var(--accent-gold);
    }
    .faq-question .fa-chevron-down {
        transition: transform 0.3s ease;
        color: var(--accent-gold);
    }
    .faq-item.open .faq-question .fa-chevron-down {
        transform: rotate(180deg);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease, padding 0.25s ease;
        padding: 0 20px;
    }
    .faq-item.open .faq-answer {
        max-height: 600px;
        padding: 0 20px 18px;
    }
    .faq-answer p {
        color: var(--text-mint);
        font-size: 0.95rem;
        line-height: 1.7;
    }

    /* ========== CTA SECTION ========== */
    .cta-section {
        padding: 72px 0;
        background-image: url('/assets/images/backpic/back-3.jpg');
        background-size: cover;
        background-position: center;
        position: relative;
    }
    .cta-section::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(145deg, rgba(10, 46, 28, 0.97) 0%, rgba(18, 62, 37, 0.92) 100%);
    }
    .cta-section .container {
        position: relative;
        z-index: 2;
        text-align: left;
    }
    .cta-section h2 {
        font-size: 2.1rem;
        font-weight: 800;
        margin-bottom: 12px;
    }
    .cta-section p {
        color: var(--text-mint);
        font-size: 1.1rem;
        margin-bottom: 28px;
        max-width: 600px;
    }
    .cta-section .cta-buttons {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
    }
    .cta-section .cta-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 215, 0, 0.15);
        border: 1px solid rgba(255, 215, 0, 0.4);
        border-radius: 50px;
        padding: 8px 16px;
        font-size: 0.85rem;
        font-weight: 600;
        color: var(--accent-gold);
        margin-bottom: 16px;
    }

    /* ========== FOOTER ========== */
    footer {
        background: #072014;
        border-top: 1px solid var(--border-subtle);
        padding: 48px 0 28px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 32px;
        margin-bottom: 32px;
    }
    .footer-brand p {
        color: var(--text-mint);
        font-size: 0.9rem;
        line-height: 1.7;
        margin: 14px 0 16px;
        max-width: 360px;
    }
    .footer-payment {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .footer-payment span {
        display: inline-block;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid var(--border-subtle);
        border-radius: 50px;
        padding: 4px 12px;
        font-size: 0.75rem;
        font-weight: 600;
        color: var(--text-mint);
    }
    .footer-links h4 {
        font-size: 1rem;
        font-weight: 700;
        color: var(--accent-gold);
        margin-bottom: 14px;
    }
    .footer-links ul {
        list-style: none;
    }
    .footer-links ul li {
        margin-bottom: 8px;
    }
    .footer-links ul li a {
        color: var(--text-mint);
        font-size: 0.9rem;
        transition: color var(--transition);
    }
    .footer-links ul li a:hover {
        color: var(--accent-gold);
    }
    .footer-bottom {
        border-top: 1px solid var(--border-subtle);
        padding-top: 20px;
        text-align: center;
    }
    .footer-bottom p {
        color: var(--text-muted);
        font-size: 0.85rem;
    }

    /* ========== FAB (LEFT BOTTOM) ========== */
    .fab {
        position: fixed;
        left: 16px;
        bottom: 96px;
        z-index: 50;
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: linear-gradient(145deg, #1A1A1A, #0A0A0A);
        border: 3px solid var(--accent-gold);
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        opacity: 0.7;
        animation: fab-breathe 3s ease-in-out infinite;
        box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
        transition: transform var(--transition), opacity var(--transition), box-shadow var(--transition);
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        min-width: 48px;
        min-height: 48px;
    }
    .fab:hover {
        opacity: 1;
        transform: scale(1.1);
        box-shadow: 0 8px 28px rgba(255, 215, 0, 0.5);
    }
    .fab:active {
        transform: scale(0.95) translateY(2px);
    }
    .fab i {
        color: var(--accent-gold);
        font-size: 1.4rem;
    }
    .fab .fab-dot {
        position: absolute;
        top: -2px;
        right: -2px;
        width: 14px;
        height: 14px;
        border-radius: 50%;
        background: var(--accent-red);
        border: 2px solid #fff;
        animation: dot-blink 1.5s ease-in-out infinite;
    }
    @keyframes fab-breathe {
        0%, 100% {
            transform: translateY(0);
        }
        50% {
            transform: translateY(-4px);
        }
    }
    @keyframes dot-blink {
        0%, 100% {
            opacity: 1;
        }
        50% {
            opacity: 0.3;
        }
    }

    /* ========== FIXED BOTTOM CTA BAR ========== */
    .fixed-bottom-bar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 900;
        background: rgba(10, 46, 28, 0.96);
        backdrop-filter: blur(12px);
        border-top: 2px solid var(--accent-gold);
        padding: 10px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
    }
    .fixed-bottom-bar .bar-text {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--text-mint);
    }
    .fixed-bottom-bar .bar-text strong {
        color: var(--accent-gold);
    }
    .fixed-bottom-bar .bar-buttons {
        display: flex;
        gap: 10px;
        flex-shrink: 0;
    }
    .fixed-bottom-bar .btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    /* ========== RESPONSIVE ========== */
    @media (max-width: 1024px) {
        .section-title {
            font-size: 1.9rem;
        }
        .page-hero h1 {
            font-size: 2.1rem;
        }
        .criteria-wrap {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
    }
    @media (max-width: 768px) {
        .section {
            padding: 48px 0;
        }
        .section-title {
            font-size: 1.7rem;
        }
        .page-hero {
            min-height: 40vh;
            padding: 40px 0 30px;
        }
        .page-hero h1 {
            font-size: 1.7rem;
        }
        .nav-menu {
            display: none;
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            background: rgba(10, 46, 28, 0.98);
            flex-direction: column;
            align-items: flex-start;
            padding: 20px;
            gap: 16px;
            border-bottom: 2px solid var(--accent-gold);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
        }
        .nav-menu.open {
            display: flex;
        }
        .nav-toggle {
            display: block;
        }
        .nav-auth {
            margin-left: 0;
        }
        .nav-auth .btn-text {
            display: none;
        }
        .hero-icon-matrix {
            gap: 8px;
        }
        .hero-icon-matrix .icon-chip {
            font-size: 0.8rem;
            padding: 6px 12px;
        }
        .hero-status-bar {
            gap: 12px;
            padding: 12px 14px;
        }
        .rating-detail-card {
            flex-direction: column;
            gap: 12px;
        }
        .criteria-list {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .footer-bottom {
            text-align: left;
        }
        .cta-section h2 {
            font-size: 1.6rem;
        }
        .fixed-bottom-bar {
            flex-direction: column;
            align-items: stretch;
            text-align: center;
            padding: 10px 14px;
        }
        .fixed-bottom-bar .bar-text {
            font-size: 0.82rem;
        }
        .fixed-bottom-bar .bar-buttons {
            justify-content: center;
        }
    }
    @media (max-width: 520px) {
        body {
            padding-bottom: 120px;
        }
        .container {
            padding: 0 14px;
        }
        .section-title {
            font-size: 1.4rem;
        }
        .page-hero h1 {
            font-size: 1.4rem;
        }
        .page-hero .hero-desc {
            font-size: 0.95rem;
        }
        .btn-lg {
            padding: 12px 20px;
            font-size: 0.9rem;
        }
        .comparison-table {
            font-size: 0.8rem;
        }
        .comparison-table th,
        .comparison-table td {
            padding: 8px 10px;
        }
        .fab {
            width: 48px;
            height: 48px;
            left: 12px;
            bottom: 130px;
        }
        .fab i {
            font-size: 1.1rem;
        }
        .fixed-bottom-bar .bar-buttons {
            flex-direction: column;
            gap: 6px;
        }
    }

/* roulang page: category3 */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: rgba(255, 255, 255, 0.75);
            --border-subtle: rgba(255, 255, 255, 0.12);
            --border-gold: rgba(255, 215, 0, 0.35);
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.18);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.32);
            --shadow-gold: 0 4px 24px rgba(255, 215, 0, 0.25);
            --shadow-gold-hover: 0 10px 38px rgba(255, 215, 0, 0.38);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --font-family: 'Be Vietnam Pro', sans-serif;
            --transition: 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            min-height: 100vh;
            padding-bottom: 88px;
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:hover {
            color: var(--text-mint);
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: 72px 0;
        }

        .section-header {
            margin-bottom: 42px;
        }

        .section-title {
            font-size: clamp(1.8rem, 3.2vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--text-white);
            letter-spacing: -0.4px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 1.08rem;
            color: var(--text-mint);
            max-width: 720px;
            line-height: 1.6;
        }

        .section-highlight {
            color: var(--accent-gold);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            padding: 12px 26px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            text-transform: none;
            border: none;
            cursor: pointer;
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
            white-space: nowrap;
            line-height: 1.3;
            letter-spacing: 0.2px;
        }

        .btn:focus-visible {
            outline: 3px solid var(--accent-gold);
            outline-offset: 2px;
        }

        .btn:active {
            transform: scale(0.97);
        }

        .btn-gold {
            background: linear-gradient(145deg, #FFE066, #FFD700);
            color: #0A2E1C;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.35);
        }

        .btn-gold:hover {
            background: linear-gradient(145deg, #FFE680, #FFD700);
            color: #062015;
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-hover);
        }

        .btn-red {
            background: linear-gradient(145deg, #E64A45, var(--accent-red));
            color: #fff;
            box-shadow: 0 4px 16px rgba(211, 47, 47, 0.38);
        }

        .btn-red:hover {
            background: linear-gradient(145deg, #E6605A, #B71C1C);
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(211, 47, 47, 0.5);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
        }

        .btn-outline:hover {
            background: rgba(255, 215, 0, 0.12);
            transform: translateY(-2px);
            color: var(--accent-gold);
        }

        .btn-lg {
            padding: 16px 34px;
            font-size: 1.08rem;
        }

        .btn-md {
            padding: 12px 24px;
            font-size: 0.92rem;
        }

        .btn i {
            font-size: 1.05em;
        }

        /* Header / Navbar */
        header.navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(10, 46, 28, 0.93);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0;
        }

        .navbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 18px;
        }

        .logo {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: -0.4px;
            white-space: nowrap;
            line-height: 1.2;
            display: inline-flex;
            align-items: center;
        }

        .logo span {
            color: #fff;
            margin-left: 2px;
        }

        .logo:hover {
            color: #FFE680;
        }

        .logo:hover span {
            color: var(--text-mint);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 22px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.96rem;
            padding: 8px 2px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .nav-menu li a:hover,
        .nav-menu li a.active {
            color: var(--accent-gold);
            border-bottom-color: var(--accent-gold);
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: 4px;
        }

        .nav-auth .btn {
            padding: 8px 18px;
            font-size: 0.9rem;
        }

        .nav-auth .btn-text {
            background: transparent;
            border: none;
            color: var(--text-white);
            font-weight: 600;
            padding: 8px 10px;
            font-size: 0.9rem;
            cursor: pointer;
        }

        .nav-auth .btn-text:hover {
            color: var(--accent-gold);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.7rem;
            cursor: pointer;
            padding: 6px 8px;
            line-height: 1;
        }

        /* Hero */
        .hero {
            min-height: 80vh;
            display: flex;
            align-items: center;
            background-image: linear-gradient(120deg, rgba(10, 46, 28, 0.92) 0%, rgba(18, 62, 37, 0.82) 55%, rgba(10, 46, 28, 0.68) 100%), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            margin-top: 72px;
            padding: 70px 0;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 60%, rgba(255, 215, 0, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-layout {
            display: grid;
            grid-template-columns: 1.05fr 1.2fr 0.85fr;
            gap: 36px;
            align-items: center;
        }

        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-gold);
            width: fit-content;
        }

        .hero-tag i {
            font-size: 0.85rem;
        }

        .hero h1 {
            font-size: clamp(2rem, 3.8vw, 2.85rem);
            font-weight: 800;
            margin: 0;
            line-height: 1.25;
            letter-spacing: -0.6px;
            color: var(--text-white);
        }

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

        .hero-desc {
            font-size: 1.05rem;
            color: var(--text-mint);
            line-height: 1.7;
            max-width: 480px;
            margin: 0;
        }

        .hero-value-list {
            list-style: none;
            padding: 0;
            margin: 6px 0 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .hero-value-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-white);
            font-weight: 500;
        }

        .hero-value-list li i {
            color: var(--accent-gold);
            font-size: 0.9rem;
            width: 20px;
            text-align: center;
        }

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

        .hero-center-img {
            width: 100%;
            max-width: 380px;
            border-radius: var(--radius-xl);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45), 0 0 0 1px var(--border-subtle);
            object-fit: cover;
            aspect-ratio: 4/4.6;
            transition: transform 0.4s ease, box-shadow 0.4s ease;
        }

        .hero-center-img:hover {
            transform: translateY(-6px) rotate(-1deg);
            box-shadow: 0 28px 70px rgba(0, 0, 0, 0.5), 0 0 0 2px var(--border-gold);
        }

        .hero-right {
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: stretch;
        }

        .hero-right .btn {
            width: 100%;
            justify-content: flex-start;
            padding: 14px 24px;
            font-size: 1rem;
        }

        .hero-right .btn i {
            width: 22px;
            text-align: center;
        }

        .hero-stats-row {
            display: flex;
            gap: 16px;
            margin-top: 8px;
            flex-wrap: wrap;
        }

        .hero-stat {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            flex: 1;
            min-width: 90px;
            text-align: left;
        }

        .hero-stat .stat-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .hero-stat .stat-label {
            font-size: 0.82rem;
            color: var(--text-mint);
            line-height: 1.3;
        }

        /* Download Steps Section */
        .steps-section {
            background: linear-gradient(180deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            margin-top: 18px;
        }

        .step-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 26px 20px;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(145deg, #FFD700, #C5A000);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.35);
        }

        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0;
            color: var(--text-white);
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--text-mint);
            margin: 0;
            line-height: 1.55;
        }

        .step-item .step-tag {
            position: absolute;
            top: 16px;
            right: 16px;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent-red);
            background: rgba(211, 47, 47, 0.12);
            padding: 4px 10px;
            border-radius: 20px;
            border: 1px solid rgba(211, 47, 47, 0.3);
        }

        /* Feature / Highlights */
        .feature-list-section {
            background: var(--primary-bg);
        }

        .feature-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .feature-img-wrapper {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
        }

        .feature-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 16/10;
            transition: transform 0.5s ease;
        }

        .feature-img-wrapper:hover img {
            transform: scale(1.04);
        }

        .feature-img-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(10, 46, 28, 0.88);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            padding: 10px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .feature-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .feature-content h2 {
            font-size: clamp(1.6rem, 2.6vw, 2rem);
            font-weight: 800;
            margin: 0;
            line-height: 1.3;
        }

        .feature-content p {
            color: var(--text-mint);
            margin: 0;
            line-height: 1.7;
            font-size: 1rem;
        }

        .feature-checklist {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .feature-checklist li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            font-size: 0.95rem;
            color: var(--text-white);
            line-height: 1.55;
        }

        .feature-checklist li i {
            color: var(--accent-gold);
            font-size: 0.95rem;
            margin-top: 3px;
            width: 18px;
        }

        /* System Requirements */
        .system-section {
            background: var(--secondary-bg);
        }

        .system-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .system-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

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

        .system-card-header {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 18px;
        }

        .system-card-header i {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .system-card-header h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0;
        }

        .system-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .system-card ul li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-mint);
        }

        .system-card ul li i {
            color: var(--accent-gold);
            font-size: 0.85rem;
            width: 16px;
        }

        /* Social Proof */
        .social-section {
            background: var(--primary-bg);
        }

        .social-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 30px;
        }

        .social-stat {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            transition: border-color var(--transition), transform var(--transition);
        }

        .social-stat:hover {
            border-color: var(--border-gold);
            transform: translateY(-3px);
        }

        .social-stat .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .social-stat .stat-label {
            font-size: 0.9rem;
            color: var(--text-mint);
            margin-top: 6px;
            line-height: 1.4;
        }

        .trust-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: flex-start;
            align-items: center;
        }

        .trust-badge {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-subtle);
            padding: 10px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-white);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: border-color var(--transition), background var(--transition);
        }

        .trust-badge:hover {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.08);
        }

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

        /* FAQ */
        .faq-section {
            background: var(--secondary-bg);
        }

        .faq-wrapper {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
            line-height: 1.4;
        }

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

        .faq-question i {
            font-size: 0.9rem;
            color: var(--accent-gold);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(90deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-mint);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 22px;
        }

        .faq-answer p {
            margin: 0;
        }

        /* Bottom Fixed CTA Bar */
        .bottom-bar {
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 900;
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--border-gold);
            padding: 14px 0;
        }

        .bottom-bar-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .bottom-bar .btn {
            padding: 10px 22px;
            font-size: 0.9rem;
        }

        .bottom-bar-text {
            font-size: 0.85rem;
            color: var(--text-mint);
            font-weight: 500;
            margin-right: 4px;
        }

        /* Floating Action Button (FAB) Classic & Royal */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 950;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #1A1A1A, #0A0A0A);
            border: 3px solid var(--accent-gold);
            box-shadow: 0 4px 24px rgba(255, 215, 0, 0.35), inset 0 1px 2px rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.75;
            transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
            animation: fab-breathe 3s ease-in-out infinite;
            text-decoration: none;
            color: var(--accent-gold);
            font-size: 1.4rem;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 10px 38px rgba(255, 215, 0, 0.55), inset 0 1px 2px rgba(255, 255, 255, 0.12);
            animation-play-state: paused;
        }

        .fab:active {
            transform: scale(0.94) translateY(2px);
        }

        .fab .fab-noti {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border: 2px solid #0A2E1C;
            border-radius: 50%;
            animation: fab-blink 1.6s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%,
            100% {
                box-shadow: 0 4px 24px rgba(255, 215, 0, 0.35), inset 0 1px 2px rgba(255, 255, 255, 0.1);
            }
            50% {
                box-shadow: 0 6px 32px rgba(255, 215, 0, 0.5), inset 0 1px 2px rgba(255, 255, 255, 0.12);
            }
        }

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

        /* Footer */
        footer {
            background: #072314;
            border-top: 1px solid var(--border-subtle);
            padding: 52px 0 30px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 30px;
        }

        .footer-brand p {
            color: var(--text-mint);
            font-size: 0.92rem;
            margin: 14px 0 16px;
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }

        .footer-payment span {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-subtle);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-mint);
        }

        .footer-links h4 {
            font-size: 1rem;
            font-weight: 700;
            margin: 0 0 16px;
            color: var(--accent-gold);
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links ul li a {
            color: var(--text-mint);
            font-size: 0.92rem;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 22px;
            font-size: 0.85rem;
            color: var(--text-muted);
            text-align: center;
            line-height: 1.6;
        }

        /* Back to top */
        .back-top {
            position: fixed;
            right: 16px;
            bottom: 96px;
            z-index: 950;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.18);
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1rem;
            transition: background var(--transition), transform var(--transition), opacity var(--transition);
            opacity: 0.7;
            text-decoration: none;
        }

        .back-top:hover {
            background: rgba(255, 215, 0, 0.3);
            opacity: 1;
            transform: translateY(-3px);
            color: var(--accent-gold);
        }

        /* Responsive */
        @media (max-width: 1100px) {
            .hero-layout {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .hero-right {
                grid-column: 1 / -1;
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: flex-start;
            }
            .hero-right .btn {
                width: auto;
                flex: 1;
                min-width: 200px;
                justify-content: center;
            }
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 992px) {
            .nav-menu {
                gap: 14px;
            }
            .nav-menu li a {
                font-size: 0.9rem;
            }
            .feature-layout {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .system-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .social-stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section {
                padding: 56px 0;
            }
        }

        @media (max-width: 768px) {
            .navbar-inner {
                height: 64px;
            }
            .nav-menu {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid var(--border-subtle);
                z-index: 999;
            }
            .nav-menu.show {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu li a {
                display: block;
                padding: 12px 4px;
                font-size: 1rem;
                border-bottom: 1px solid var(--border-subtle);
            }
            .nav-menu li a:hover,
            .nav-menu li a.active {
                border-bottom-color: var(--accent-gold);
            }
            .nav-auth {
                margin-left: auto;
                gap: 6px;
            }
            .nav-auth .btn-text {
                display: none;
            }
            .nav-auth .btn {
                padding: 7px 14px;
                font-size: 0.85rem;
            }
            .nav-toggle {
                display: block;
            }
            .hero {
                margin-top: 64px;
                min-height: auto;
                padding: 48px 0 56px;
            }
            .hero-layout {
                grid-template-columns: 1fr;
                gap: 28px;
                text-align: left;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero-desc {
                font-size: 0.98rem;
            }
            .hero-center {
                order: 2;
            }
            .hero-center-img {
                max-width: 100%;
                aspect-ratio: 16/11;
            }
            .hero-right {
                grid-column: auto;
                flex-direction: column;
                align-items: stretch;
            }
            .hero-right .btn {
                width: 100%;
                justify-content: center;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .step-item {
                padding: 20px 18px;
            }
            .social-stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .bottom-bar-inner {
                gap: 10px;
            }
            .bottom-bar-text {
                display: none;
            }
            .fab {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 88px;
            }
            .back-top {
                width: 40px;
                height: 40px;
                font-size: 0.9rem;
                right: 12px;
                bottom: 88px;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 1.3rem;
            }
            .nav-auth .btn {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .hero {
                padding: 36px 0 44px;
            }
            .hero h1 {
                font-size: 1.65rem;
            }
            .hero-tag {
                font-size: 0.75rem;
                padding: 6px 12px;
            }
            .hero-stat .stat-num {
                font-size: 1.25rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .system-card {
                padding: 22px 18px;
            }
            .social-stats-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .trust-badge {
                font-size: 0.75rem;
                padding: 8px 14px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 0.88rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 18px;
            }
            .bottom-bar {
                padding: 10px 0;
            }
            .bottom-bar .btn {
                padding: 9px 16px;
                font-size: 0.82rem;
            }
            .footer {
                padding: 36px 0 22px;
            }
        }