/* roulang page: index */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --card-bg: #0F3322;
            --border-gold: rgba(255, 215, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.2);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 80px;
            --font-heading: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --font-body: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
            --transition-smooth: all 0.25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-body);
            background-color: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-smooth);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        .btn {
            cursor: pointer;
            font-family: var(--font-body);
            border: none;
            outline: none;
            transition: var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
        }
        button:focus-visible,
        .btn:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        header {
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            border-bottom: 1px solid var(--border-gold);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
        }
        nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            position: relative;
        }
        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }
        .nav-logo span {
            background: linear-gradient(135deg, var(--accent-gold), #FFA500);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }
        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-mint);
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: var(--transition-smooth);
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-gold);
            border-bottom-color: var(--accent-gold);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-login {
            background: transparent;
            color: var(--accent-gold);
            border: 1.5px solid var(--accent-gold);
            padding: 9px 20px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
        }
        .btn-login:hover {
            background: rgba(255, 215, 0, 0.1);
        }
        .btn-signup {
            background: var(--accent-gold);
            color: #0A2E1C;
            padding: 10px 22px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 700;
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.35);
        }
        .btn-signup:hover {
            background: #FFED4A;
            transform: translateY(-1px);
            box-shadow: 0 4px 18px rgba(255, 215, 0, 0.45);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.6rem;
            padding: 4px;
            cursor: pointer;
        }
        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: rgba(10, 46, 28, 0.98);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-gold);
            padding: var(--spacing-md);
            flex-direction: column;
            gap: 16px;
            z-index: 999;
        }
        .mobile-menu a {
            font-size: 1rem;
            font-weight: 500;
            padding: 8px 0;
            color: var(--text-mint);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .mobile-menu a:hover {
            color: var(--accent-gold);
        }
        main {
            margin-top: 68px;
        }
        section {
            padding: var(--spacing-xl) 0;
        }
        .hero {
            background: linear-gradient(135deg, #0A2E1C 0%, #08331A 50%, #103E20 100%);
            position: relative;
            overflow: hidden;
            padding: var(--spacing-xl) 0;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }
        .hero-content {
            flex: 1 1 400px;
        }
        .hero-badge {
            display: inline-block;
            background: var(--accent-red);
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.8rem;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: var(--spacing-sm);
            animation: pulse-badge 2s infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.75;
            }
        }
        .hero h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: var(--spacing-sm);
            color: var(--text-white);
            letter-spacing: -0.5px;
        }
        .hero h1 .gold {
            color: var(--accent-gold);
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-mint);
            line-height: 1.65;
            margin-bottom: var(--spacing-md);
            max-width: 540px;
        }
        .hero-ctas {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: var(--spacing-md);
        }
        .btn-primary {
            background: var(--accent-gold);
            color: #0A2E1C;
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-gold);
        }
        .btn-primary:hover {
            background: #FFED4A;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--accent-gold);
            border: 2px solid var(--accent-gold);
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
        }
        .btn-outline:hover {
            background: rgba(255, 215, 0, 0.08);
        }
        .hero-timer {
            background: rgba(0, 0, 0, 0.55);
            backdrop-filter: blur(8px);
            border: 1.5px solid var(--accent-gold);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            display: inline-flex;
            flex-direction: column;
            gap: 10px;
        }
        .timer-label {
            font-size: 0.85rem;
            color: var(--accent-gold);
            font-weight: 700;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .timer-digits {
            display: flex;
            gap: 8px;
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
        }
        .timer-digits span {
            background: var(--accent-red);
            padding: 6px 10px;
            border-radius: 6px;
            min-width: 48px;
            text-align: center;
        }
        .hero-visual {
            flex: 1 1 360px;
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        .hero-visual img {
            max-width: 420px;
            border-radius: var(--radius-lg);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
        }
        .section-header {
            margin-bottom: var(--spacing-lg);
        }
        .section-label {
            display: inline-block;
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-white);
        }
        .section-header p {
            color: var(--text-mint);
            font-size: 1.05rem;
            margin-top: 8px;
            max-width: 640px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .card {
            background: var(--card-bg);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: var(--transition-smooth);
        }
        .card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-2px);
        }
        .card-icon {
            font-size: 2.2rem;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-sm);
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            list-style: none;
        }
        .news-list li {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding-bottom: 12px;
        }
        .news-list a {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            gap: 12px;
            color: var(--text-mint);
            transition: var(--transition-smooth);
        }
        .news-list a:hover {
            color: var(--accent-gold);
        }
        .news-title {
            font-weight: 600;
            flex: 1;
        }
        .news-date {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            white-space: nowrap;
        }
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--card-bg);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            transition: var(--transition-smooth);
        }
        .hot-item:hover {
            border-color: var(--accent-gold);
        }
        .hot-rank {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent-gold);
            min-width: 36px;
        }
        .hot-details {
            flex: 1;
        }
        .hot-details h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 4px;
        }
        .hot-details p {
            font-size: 0.85rem;
            color: var(--text-mint);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 20px;
            background: var(--accent-gold);
            color: #0A2E1C;
            font-weight: 700;
            white-space: nowrap;
        }
        .btn-sm:hover {
            background: #FFED4A;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid rgba(255, 215, 0, 0.1);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            transition: var(--transition-smooth);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--accent-gold);
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--accent-gold);
            margin-bottom: 6px;
        }
        .faq-answer {
            color: var(--text-mint);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .security-card {
            background: var(--card-bg);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            text-align: left;
            transition: var(--transition-smooth);
        }
        .security-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }
        .security-card .icon {
            font-size: 2.5rem;
            margin-bottom: 12px;
        }
        .security-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        .security-card p {
            color: var(--text-mint);
            font-size: 0.9rem;
        }
        .app-section {
            background: linear-gradient(135deg, #0F3322, #0A2E1C);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }
        .app-content h3 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-gold);
        }
        .app-content p {
            color: var(--text-mint);
            margin: 10px 0 18px;
        }
        .app-btns {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        footer {
            background: #062012;
            border-top: 1px solid var(--border-gold);
            padding: var(--spacing-lg) 0 var(--spacing-md);
            color: var(--text-mint);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-md);
        }
        .footer-col h4 {
            color: var(--accent-gold);
            font-weight: 700;
            margin-bottom: 12px;
            font-size: 1rem;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            color: var(--text-mint);
            font-size: 0.9rem;
        }
        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: var(--spacing-md);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-badges {
            display: flex;
            gap: 10px;
            align-items: center;
            margin-top: 8px;
        }
        .badge-18 {
            background: var(--accent-red);
            color: white;
            font-weight: 800;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.85rem;
        }
        @media (max-width: 1024px) {
            .grid-3,
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .mobile-menu.open {
                display: flex;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero .container {
                flex-direction: column;
            }
            .hero-visual img {
                max-width: 300px;
            }
            .hero-timer .timer-digits {
                font-size: 1.4rem;
            }
            .app-section {
                flex-direction: column;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .btn-login,
            .btn-signup {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-ctas {
                flex-direction: column;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hot-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .timer-digits span {
                min-width: 36px;
                font-size: 1.2rem;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B0B0B;
            --bg-secondary: #161616;
            --bg-card: #1C1C1E;
            --bg-card-hover: #242427;
            --accent-lava: #FF4500;
            --accent-fire: #FF0000;
            --accent-amber: #FF9F00;
            --text-white: #FFFFFF;
            --text-warm-gray: #CCCCCC;
            --text-muted: #999999;
            --border-dark: #2A2A2D;
            --border-lava: rgba(255, 69, 0, 0.3);
            --shadow-lava: 0 8px 32px rgba(255, 69, 0, 0.15);
            --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.3);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-primary: 'Inter', sans-serif;
            --font-display: 'Playfair Display', serif;
            --container-padding: clamp(16px, 5vw, 40px);
            --max-width: 1200px;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: var(--font-primary);
            border: none;
            outline: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-lava);
            outline-offset: 2px;
        }

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

        /* Header & Navigation */
        header {
            background: rgba(11, 11, 11, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dark);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: background var(--transition-smooth);
        }

        nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }

        .nav-logo {
            font-family: var(--font-display);
            font-size: clamp(1rem, 2vw, 1.25rem);
            font-weight: 800;
            color: var(--text-white);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .nav-logo span {
            font-size: 1.1em;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 4px;
            flex-wrap: wrap;
        }

        .nav-links a {
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-warm-gray);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .nav-links a:hover {
            color: var(--text-white);
            background: rgba(255, 69, 0, 0.1);
        }

        .nav-links a.active {
            background: var(--accent-lava);
            color: var(--text-white);
            font-weight: 600;
            box-shadow: 0 2px 12px rgba(255, 69, 0, 0.4);
        }

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

        .btn-login {
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-white);
            background: transparent;
            border: 1px solid var(--border-dark);
        }

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

        .btn-signup {
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--accent-lava), var(--accent-fire));
            box-shadow: 0 2px 12px rgba(255, 69, 0, 0.4);
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(255, 69, 0, 0.6);
        }

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

        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            color: var(--text-white);
            padding: 4px 8px;
            border-radius: 6px;
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 68px;
            left: 0;
            right: 0;
            background: rgba(22, 22, 22, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-dark);
            padding: 16px var(--container-padding);
            flex-direction: column;
            gap: 8px;
            z-index: 99;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-warm-gray);
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover {
            background: rgba(255, 69, 0, 0.1);
            color: var(--text-white);
        }

        /* Article Layout */
        .article-wrapper {
            padding: 48px 0;
            background: var(--bg-primary);
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .article-main {
            min-width: 0;
        }

        .article-sidebar {
            position: sticky;
            top: 88px;
        }

        /* Article Header */
        .article-category-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            background: rgba(255, 69, 0, 0.15);
            color: var(--accent-lava);
            border: 1px solid var(--border-lava);
            margin-bottom: 20px;
        }

        .article-title {
            font-family: var(--font-display);
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 24px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--border-dark);
        }

        .article-meta i {
            color: var(--accent-lava);
        }

        .article-featured-image {
            width: 100%;
            border-radius: var(--radius-lg);
            margin-bottom: 32px;
            box-shadow: var(--shadow-lava);
        }

        /* Article Body */
        .article-content {
            color: var(--text-warm-gray);
            font-size: 1.05rem;
            line-height: 1.75;
        }

        .article-content h2 {
            font-family: var(--font-display);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 36px 0 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-dark);
            position: relative;
        }

        .article-content h2::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 60px;
            height: 2px;
            background: var(--accent-lava);
        }

        .article-content h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-white);
            margin: 28px 0 12px;
        }

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

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

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

        .article-content strong {
            color: var(--text-white);
            font-weight: 600;
        }

        .article-content a {
            color: var(--accent-lava);
            font-weight: 500;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        .article-content blockquote {
            border-left: 4px solid var(--accent-lava);
            padding: 16px 20px;
            margin: 24px 0;
            background: var(--bg-card);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-warm-gray);
            font-style: italic;
        }

        .article-content .highlight-box {
            background: linear-gradient(135deg, rgba(255, 69, 0, 0.08), rgba(255, 0, 0, 0.05));
            border: 1px solid var(--border-lava);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin: 24px 0;
        }

        /* Sidebar */
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 20px;
            transition: all var(--transition-fast);
        }

        .sidebar-card:hover {
            background: var(--bg-card-hover);
        }

        .sidebar-card h4 {
            font-family: var(--font-display);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-dark);
            position: relative;
        }

        .sidebar-card h4::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--accent-lava);
        }

        .sidebar-article-item {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-dark);
            align-items: center;
            transition: all var(--transition-fast);
        }

        .sidebar-article-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .sidebar-article-item img {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .sidebar-article-item h5 {
            font-size: 0.85rem;
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-white);
        }

        .sidebar-article-item:hover h5 {
            color: var(--accent-lava);
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--accent-lava), var(--accent-fire));
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-lava);
        }

        .sidebar-cta h4 {
            color: var(--text-white);
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 8px;
        }

        .sidebar-cta p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9rem;
            margin-bottom: 16px;
        }

        .sidebar-cta .btn-cta {
            display: block;
            width: 100%;
            padding: 12px 24px;
            background: var(--text-white);
            color: var(--accent-lava);
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: 25px;
            transition: all var(--transition-fast);
        }

        .sidebar-cta .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            padding: 48px 0;
            margin-top: 40px;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-text {
            flex: 1;
            min-width: 260px;
        }

        .cta-text h3 {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }

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

        .cta-buttons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary-cta {
            padding: 14px 32px;
            border-radius: 25px;
            font-weight: 700;
            font-size: 0.95rem;
            background: linear-gradient(135deg, var(--accent-lava), var(--accent-fire));
            color: var(--text-white);
            box-shadow: var(--shadow-lava);
        }

        .btn-primary-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 69, 0, 0.5);
        }

        .btn-secondary-cta {
            padding: 14px 32px;
            border-radius: 25px;
            font-weight: 600;
            font-size: 0.95rem;
            background: var(--bg-card);
            color: var(--text-white);
            border: 1px solid var(--border-dark);
        }

        .btn-secondary-cta:hover {
            border-color: var(--accent-lava);
            color: var(--accent-lava);
        }

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

        .not-found h2 {
            font-family: var(--font-display);
            font-size: 2rem;
            color: var(--text-white);
            margin-bottom: 16px;
        }

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

        .btn-back-home {
            display: inline-block;
            padding: 12px 28px;
            border-radius: 25px;
            font-weight: 600;
            background: var(--accent-lava);
            color: var(--text-white);
            box-shadow: var(--shadow-lava);
        }

        .btn-back-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 69, 0, 0.5);
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 28px;
            background: rgba(22, 22, 22, 0.7);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 20px rgba(255, 69, 0, 0.4);
            cursor: pointer;
            transition: all var(--transition-smooth);
            animation: fabPulse 2s ease-in-out infinite;
            text-decoration: none;
        }

        .fab::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 30px;
            padding: 2px;
            background: linear-gradient(135deg, #FF4500, #FF0000);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
        }

        .fab i {
            font-size: 1.5rem;
            color: var(--accent-lava);
            z-index: 1;
            transition: all var(--transition-fast);
        }

        .fab:hover {
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(255, 69, 0, 0.7);
        }

        .fab:hover i {
            color: #fff;
            animation: iconFlicker 0.3s ease;
        }

        .fab:active {
            transform: scale(0.95);
        }

        @keyframes fabPulse {
            0%, 100% { opacity: 0.65; }
            50% { opacity: 1; }
        }

        @keyframes iconFlicker {
            0%, 100% { opacity: 1; }
            25% { opacity: 0.5; }
            50% { opacity: 1; }
            75% { opacity: 0.3; }
        }

        /* Footer */
        footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-dark);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-col h4 {
            font-family: var(--font-display);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .footer-col p {
            font-size: 0.85rem;
            line-height: 1.6;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-badges {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .badge-18 {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 4px;
            background: var(--accent-lava);
            color: var(--text-white);
            font-weight: 700;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-dark);
            color: var(--text-muted);
            font-size: 0.8rem;
        }

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

            .article-sidebar {
                position: static;
            }

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

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .hamburger {
                display: block;
            }

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

            .cta-inner {
                flex-direction: column;
                text-align: center;
            }

            .cta-buttons {
                justify-content: center;
                width: 100%;
            }

            .fab {
                left: 16px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                border-radius: 24px;
            }

            .fab i {
                font-size: 1.25rem;
            }
        }

        @media (max-width: 520px) {
            nav {
                height: 60px;
            }

            .btn-login, .btn-signup {
                padding: 6px 14px;
                font-size: 0.8rem;
            }

            .article-title {
                font-size: 1.5rem;
            }

            .btn-primary-cta, .btn-secondary-cta {
                width: 100%;
                text-align: center;
            }

            .cta-buttons {
                flex-direction: column;
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --card-bg: #0D3523;
            --border-gold: rgba(255,215,0,0.3);
            --shadow-gold: 0 4px 20px rgba(255,215,0,0.15);
            --shadow-hover: 0 8px 32px rgba(255,215,0,0.25);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
            --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            background: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
        }
        ul {
            list-style: none;
        }

        /* HEADER */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10,46,28,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-gold);
            padding: 0;
        }
        header .container {
            padding-top: 12px;
            padding-bottom: 12px;
        }
        nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .nav-logo {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--accent-gold) !important;
            white-space: nowrap;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-logo span {
            background: linear-gradient(135deg, var(--accent-gold), #FFB800);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-links a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-mint);
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width var(--transition);
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-gold);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-login {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 8px 20px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.88rem;
            white-space: nowrap;
        }
        .btn-login:hover {
            background: rgba(255,215,0,0.1);
            border-color: #FFE55C;
            color: #FFE55C;
        }
        .btn-signup {
            background: linear-gradient(135deg, #FFD700, #FFA000);
            color: #0A2E1C;
            padding: 9px 22px;
            border-radius: 24px;
            font-weight: 700;
            font-size: 0.88rem;
            white-space: nowrap;
            box-shadow: var(--shadow-gold);
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
            background: linear-gradient(135deg, #FFE55C, #FFB300);
        }
        .btn-signup:active {
            transform: translateY(0);
        }
        .hamburger {
            display: none;
            background: none;
            color: var(--accent-gold);
            font-size: 1.6rem;
            padding: 4px 8px;
            border-radius: 6px;
        }
        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: rgba(10,46,28,0.98);
            backdrop-filter: blur(20px);
            flex-direction: column;
            padding: 16px 24px;
            gap: 12px;
            border-bottom: 1px solid var(--border-gold);
        }
        .mobile-menu a {
            font-weight: 500;
            color: var(--text-mint);
            padding: 10px 0;
            border-bottom: 1px solid rgba(255,215,0,0.1);
            font-size: 1rem;
        }
        .mobile-menu a:hover {
            color: var(--accent-gold);
        }
        .mobile-menu.active {
            display: flex;
        }

        /* MAIN CONTENT */
        main {
            padding-top: 90px;
        }

        /* HERO SECTION */
        .hero {
            position: relative;
            background: var(--secondary-bg);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 80px 0 70px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10,46,28,0.82) 0%, rgba(18,62,37,0.7) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 1;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .hero-content h1 .gold {
            color: var(--accent-gold);
        }
        .hero-content .hero-sub {
            font-size: 1.1rem;
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 540px;
        }
        .hero-badge-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,215,0,0.08);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 600;
        }
        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, #FFD700, #FFA000);
            color: #0A2E1C;
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-gold);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
        }
        .btn-outline:hover {
            background: rgba(255,215,0,0.08);
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-card {
            background: var(--card-bg);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            box-shadow: var(--shadow-gold);
            text-align: left;
            max-width: 420px;
            width: 100%;
        }
        .hero-card .card-icon {
            font-size: 3rem;
            margin-bottom: 16px;
        }
        .hero-card h3 {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }
        .hero-card p {
            color: var(--text-mint);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .hero-card .trust-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 16px;
        }
        .hero-card .stat-item {
            text-align: center;
            flex: 1;
            min-width: 70px;
        }
        .hero-card .stat-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-gold);
        }
        .hero-card .stat-label {
            font-size: 0.8rem;
            color: var(--text-mint);
        }

        /* SECTION */
        .section {
            padding: 70px 0;
        }
        .section-dark {
            background: var(--secondary-bg);
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-white);
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-mint);
            margin-bottom: 40px;
            max-width: 600px;
        }

        /* TRUST CRITERIA */
        .criteria-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .criteria-card {
            background: var(--card-bg);
            border: 1px solid rgba(255,215,0,0.15);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            transition: var(--transition);
        }
        .criteria-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .criteria-card .criteria-icon {
            font-size: 2.4rem;
            margin-bottom: 16px;
        }
        .criteria-card h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            color: var(--accent-gold);
            margin-bottom: 10px;
        }
        .criteria-card p {
            color: var(--text-mint);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* EVIDENCE SECTION */
        .evidence-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .evidence-img-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 2px solid var(--border-gold);
            box-shadow: var(--shadow-gold);
        }
        .evidence-img-wrap img {
            width: 100%;
            height: auto;
        }
        .evidence-text h3 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }
        .evidence-text p {
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .evidence-list {
            list-style: none;
            padding: 0;
        }
        .evidence-list li {
            padding: 8px 0 8px 28px;
            position: relative;
            color: var(--text-mint);
            line-height: 1.6;
        }
        .evidence-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 8px;
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 1.1rem;
        }

        /* PROCESS */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
            padding: 24px 16px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,215,0,0.12);
        }
        .process-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, #FFD700, #FFA000);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 14px;
        }
        .process-step h4 {
            font-family: var(--font-heading);
            color: var(--accent-gold);
            margin-bottom: 8px;
            font-size: 1rem;
        }
        .process-step p {
            color: var(--text-mint);
            font-size: 0.88rem;
            line-height: 1.5;
        }

        /* TESTIMONIAL */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid rgba(255,215,0,0.12);
            border-radius: var(--radius-md);
            padding: 28px 24px;
        }
        .testimonial-card .stars {
            color: var(--accent-gold);
            font-size: 1rem;
            margin-bottom: 10px;
        }
        .testimonial-card .quote {
            color: var(--text-mint);
            font-style: italic;
            line-height: 1.7;
            margin-bottom: 16px;
            font-size: 0.95rem;
        }
        .testimonial-card .author {
            font-weight: 700;
            color: var(--accent-gold);
            font-size: 0.9rem;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
        }
        .faq-item {
            border-bottom: 1px solid rgba(255,215,0,0.15);
        }
        .faq-question {
            width: 100%;
            background: none;
            color: var(--text-white);
            padding: 18px 0;
            font-size: 1.05rem;
            font-weight: 600;
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-question .faq-icon {
            font-size: 1.2rem;
            transition: transform 0.3s;
            color: var(--accent-gold);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            color: var(--text-mint);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 16px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #123E25 0%, #0A2E1C 100%);
            padding: 70px 0;
            text-align: center;
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }
        .cta-section p {
            color: var(--text-mint);
            max-width: 500px;
            margin: 0 auto 28px;
            font-size: 1rem;
        }

        /* FOOTER */
        footer {
            background: #061F13;
            padding: 50px 0 28px;
            border-top: 1px solid var(--border-gold);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            font-family: var(--font-heading);
            color: var(--accent-gold);
            font-size: 1rem;
            margin-bottom: 14px;
        }
        .footer-col p {
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--text-mint);
            font-size: 0.9rem;
        }
        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }
        .footer-badges {
            display: flex;
            gap: 10px;
            align-items: center;
            margin-top: 12px;
        }
        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent-red);
            color: #fff;
            font-weight: 800;
            font-size: 0.8rem;
        }
        .footer-bottom {
            text-align: center;
            border-top: 1px solid rgba(255,215,0,0.12);
            padding-top: 20px;
            font-size: 0.82rem;
            color: var(--text-mint);
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 100px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #0A2E1C, #123E25);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            opacity: 0.75;
            animation: floatFab 3s ease-in-out infinite;
        }
        .fab:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 6px 28px rgba(255,215,0,0.45);
        }
        @keyframes floatFab {
            0%,100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .evidence-block {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: block;
            }
            header .container {
                padding-top: 10px;
                padding-bottom: 10px;
            }
            main {
                padding-top: 72px;
            }
            .hero {
                padding: 50px 0 40px;
            }
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .criteria-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .btn-login,
            .btn-signup {
                padding: 7px 14px;
                font-size: 0.78rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .hero-content h1 {
                font-size: 1.4rem;
            }
            .hero-card {
                padding: 20px 16px;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .section {
                padding: 40px 0;
            }
        }

/* roulang page: category3 */
:root {
            --primary-bg: #0B0B0B;
            --secondary-bg: #161616;
            --accent-orange: #FF4500;
            --accent-red: #FF0000;
            --accent-yellow: #FFAA00;
            --text-white: #FFFFFF;
            --text-gray: #CCCCCC;
            --text-muted: #999999;
            --border-color: #2A2A2A;
            --card-bg: #1A1A1A;
            --card-hover-bg: #222222;
            --badge-hot-bg: #FF4500;
            --badge-new-bg: #FFAA00;
            --gradient-volcano: linear-gradient(135deg, #FF4500 0%, #FF0000 100%);
            --gradient-card-hover: linear-gradient(135deg, #1A1A1A 0%, #222222 100%);
            --shadow-sm: 0 2px 8px rgba(255, 69, 0, 0.15);
            --shadow-md: 0 4px 16px rgba(255, 69, 0, 0.25);
            --shadow-lg: 0 8px 32px rgba(255, 69, 0, 0.35);
            --shadow-neon: 0 0 20px rgba(255, 69, 0, 0.5);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --transition: all 0.25s ease;
            --font-main: 'Segoe UI', 'Inter', 'Arial', sans-serif;
        }

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

        body {
            font-family: var(--font-main);
            background-color: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            min-height: 100vh;
        }

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

        /* Header & Navigation */
        header {
            background: rgba(11, 11, 11, 0.95);
            backdrop-filter: blur(12px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .nav-logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            text-decoration: none;
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-logo:hover {
            color: var(--accent-orange);
            text-shadow: var(--shadow-neon);
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 8px;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--text-gray);
            text-decoration: none;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-white);
            background: rgba(255, 69, 0, 0.15);
        }

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

        .btn-login {
            background: transparent;
            color: var(--text-white);
            border: 1px solid var(--border-color);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
        }

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

        .btn-signup {
            background: var(--gradient-volcano);
            color: var(--text-white);
            border: none;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            font-size: 0.85rem;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .btn-signup:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: var(--secondary-bg);
            flex-direction: column;
            padding: 16px;
            gap: 8px;
            border-bottom: 2px solid var(--accent-orange);
            z-index: 999;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu a {
            color: var(--text-white);
            text-decoration: none;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            transition: var(--transition);
        }

        .mobile-menu a:hover {
            background: rgba(255, 69, 0, 0.2);
        }

        /* Page Banner */
        .page-banner {
            margin-top: 64px;
            padding: 60px 0 40px;
            background: linear-gradient(135deg, #0B0B0B 0%, #1A1A1A 50%, #0B0B0B 100%);
            border-bottom: 1px solid var(--border-color);
        }

        .page-banner h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            line-height: 1.2;
        }

        .page-banner h1 span {
            background: var(--gradient-volcano);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-banner p {
            font-size: 1.1rem;
            color: var(--text-gray);
            max-width: 700px;
            line-height: 1.7;
        }

        /* Promotion Overview Stats */
        .promo-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin: -20px 0 40px;
            position: relative;
            z-index: 10;
        }

        .stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: var(--transition);
        }

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

        .stat-icon {
            font-size: 2rem;
            color: var(--accent-orange);
            margin-bottom: 8px;
        }

        .stat-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Promotion List */
        .promo-section {
            padding: 40px 0;
        }

        .promo-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
            margin-top: 24px;
        }

        .promo-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: row;
            transition: var(--transition);
            position: relative;
        }

        .promo-card:hover {
            border-color: var(--accent-orange);
            box-shadow: var(--shadow-md);
            background: var(--card-hover-bg);
        }

        .promo-card-image {
            width: 280px;
            min-height: 220px;
            background-size: cover;
            background-position: center;
            position: relative;
            flex-shrink: 0;
        }

        .promo-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--badge-hot-bg);
            color: var(--text-white);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
        }

        .promo-badge.new {
            background: var(--badge-new-bg);
            color: #000;
        }

        .promo-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .promo-card-body h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-white);
        }

        .promo-card-body p {
            color: var(--text-gray);
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .promo-highlight {
            display: inline-block;
            background: rgba(255, 69, 0, 0.15);
            color: var(--accent-orange);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            margin-right: 8px;
        }

        .promo-conditions {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 8px;
        }

        .btn-claim {
            display: inline-block;
            background: var(--gradient-volcano);
            color: var(--text-white);
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 12px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            border: none;
            cursor: pointer;
            align-self: flex-start;
        }

        .btn-claim:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        /* Comparison Table */
        .compare-table-section {
            padding: 40px 0;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 24px;
            background: var(--card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .compare-table thead {
            background: var(--gradient-volcano);
        }

        .compare-table th {
            padding: 14px 16px;
            text-align: left;
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.9rem;
        }

        .compare-table td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-gray);
            font-size: 0.9rem;
        }

        .compare-table tr:hover td {
            background: rgba(255, 69, 0, 0.05);
        }

        .compare-table .highlight-row {
            color: var(--accent-orange);
            font-weight: 600;
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, #1A1A1A 0%, #0B0B0B 100%);
            border: 2px solid var(--accent-orange);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
            margin: 40px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 69, 0, 0.1) 0%, transparent 70%);
            animation: rotate 8s linear infinite;
        }

        @keyframes rotate {
            to {
                transform: rotate(360deg);
            }
        }

        .cta-banner h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
            position: relative;
            z-index: 2;
        }

        .cta-banner .btn-cta-large {
            display: inline-block;
            background: var(--gradient-volcano);
            color: var(--text-white);
            padding: 14px 32px;
            border-radius: var(--radius-md);
            text-decoration: none;
            font-weight: 700;
            font-size: 1rem;
            margin-top: 16px;
            position: relative;
            z-index: 2;
            transition: var(--transition);
            box-shadow: var(--shadow-md);
        }

        .cta-banner .btn-cta-large:hover {
            box-shadow: var(--shadow-neon);
            transform: scale(1.05);
        }

        /* FAQ */
        .faq-section {
            padding: 40px 0;
        }

        .faq-list {
            margin-top: 24px;
        }

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

        .faq-question {
            padding: 16px 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1rem;
            user-select: none;
            transition: var(--transition);
        }

        .faq-question:hover {
            background: rgba(255, 69, 0, 0.08);
        }

        .faq-answer {
            padding: 0 20px 16px;
            color: var(--text-gray);
            line-height: 1.7;
            display: none;
        }

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

        .faq-item.open .faq-question {
            color: var(--accent-orange);
        }

        .faq-icon {
            transition: var(--transition);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-orange);
        }

        /* Footer */
        footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-color);
            padding: 40px 0 20px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 24px;
        }

        .footer-col h4 {
            color: var(--text-white);
            font-weight: 700;
            margin-bottom: 12px;
            font-size: 1rem;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 6px;
        }

        .footer-col a {
            color: var(--text-gray);
            text-decoration: none;
            font-size: 0.85rem;
            transition: var(--transition);
        }

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

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

        .badge-18 {
            display: inline-block;
            background: #FF0000;
            color: var(--text-white);
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            font-weight: 800;
            font-size: 0.85rem;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        /* FAB */
        .fab-button {
            position: fixed;
            left: 16px;
            bottom: 96px;
            width: 56px;
            height: 56px;
            background: rgba(11, 11, 11, 0.85);
            backdrop-filter: blur(10px);
            border: 2px solid var(--accent-orange);
            border-radius: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 50;
            box-shadow: var(--shadow-neon);
            transition: var(--transition);
            animation: float 3s ease-in-out infinite;
        }

        .fab-button:hover {
            background: var(--accent-orange);
            box-shadow: 0 0 30px rgba(255, 69, 0, 0.8);
            transform: scale(1.1);
        }

        .fab-icon {
            font-size: 1.5rem;
            color: var(--accent-orange);
            transition: var(--transition);
        }

        .fab-button:hover .fab-icon {
            color: var(--text-white);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .promo-card {
                flex-direction: column;
            }
            .promo-card-image {
                width: 100%;
                height: 200px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .promo-stats {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .promo-stats {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .cta-banner {
                padding: 24px;
            }
            .cta-banner h2 {
                font-size: 1.3rem;
            }
            .compare-table {
                font-size: 0.8rem;
            }
            .compare-table th,
            .compare-table td {
                padding: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .promo-card-body h3 {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .btn-login {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .btn-signup {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .nav-logo {
                font-size: 1rem;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .promo-stats {
                gap: 8px;
            }
            .stat-value {
                font-size: 1.5rem;
            }
            .promo-card-body {
                padding: 16px;
            }
            .btn-claim {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
        }

/* roulang page: category2 */
:root {
            --deep-red: #8B0000;
            --dark-wine: #4A0007;
            --gold: #FFD700;
            --warm-amber: #FF9F00;
            --warm-white: #FFFDF9;
            --gold-light: #FEF08A;
            --text-soft: #F5E6D3;
            --card-bg: rgba(255, 255, 255, 0.06);
            --card-border: rgba(255, 215, 0, 0.25);
            --shadow-gold: 0 8px 32px rgba(255, 215, 0, 0.15);
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --transition: all 0.3s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: radial-gradient(circle at 20% 20%, #8B0000, #4A0007);
            color: var(--warm-white);
            line-height: 1.65;
            min-height: 100vh;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* header / nav */
        header {
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.25);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 14px 0;
        }
        .nav-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--gold);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.3px;
        }
        .nav-logo span {
            background: linear-gradient(135deg, var(--gold), var(--warm-amber));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-links {
            display: flex;
            gap: 32px;
        }
        .nav-links a {
            font-weight: 500;
            padding: 6px 2px;
            border-bottom: 2px solid transparent;
            transition: var(--transition);
            color: var(--warm-white);
            font-size: 0.95rem;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--gold);
            border-bottom-color: var(--gold);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .btn-login {
            background: transparent;
            border: 1px solid var(--gold);
            color: var(--gold);
            padding: 8px 20px;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .btn-login:hover {
            background: rgba(255, 215, 0, 0.1);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--gold), var(--warm-amber));
            border: none;
            color: #4A0007;
            padding: 10px 24px;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 700;
            transition: var(--transition);
            font-size: 0.9rem;
            box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.6);
        }
        .hamburger {
            display: none;
            background: transparent;
            border: none;
            color: var(--gold);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            width: 100%;
            background: rgba(0,0,0,0.9);
            margin-top: 12px;
            border-radius: 12px;
            padding: 12px 0;
        }
        .mobile-menu a {
            padding: 12px 20px;
            color: var(--warm-white);
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        /* Hero */
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            min-height: 480px;
            display: flex;
            align-items: center;
            border-bottom: 3px solid var(--gold);
        }
        .hero-overlay {
            background: rgba(0, 0, 0, 0.7);
            width: 100%;
            padding: 80px 0;
        }
        .hero-content {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }
        .hero-text {
            flex: 1;
        }
        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.3;
            margin-bottom: 18px;
        }
        .hero-text p {
            font-size: 1.15rem;
            color: var(--text-soft);
            margin-bottom: 28px;
        }
        .hero-badge {
            display: inline-block;
            background: var(--warm-amber);
            color: #4A0007;
            font-weight: 700;
            padding: 8px 22px;
            border-radius: 30px;
            font-size: 0.9rem;
        }
        .hero-visual {
            flex: 0 0 300px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-gold);
        }
        .btn-primary {
            display: inline-block;
            background: linear-gradient(135deg, var(--gold), var(--warm-amber));
            color: #4A0007;
            font-weight: 700;
            padding: 14px 36px;
            border-radius: 40px;
            font-size: 1.1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            letter-spacing: 0.5px;
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.35);
            margin-top: 8px;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(255, 215, 0, 0.5);
        }
        /* section common */
        .section {
            padding: 70px 0;
        }
        .section-dark {
            background: rgba(0,0,0,0.25);
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--gold-light);
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: var(--gold);
            margin-top: 10px;
            border-radius: 2px;
        }
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
            margin-top: 36px;
        }
        .card {
            background: var(--card-bg);
            backdrop-filter: blur(8px);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: var(--transition);
        }
        .card:hover {
            border-color: var(--gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }
        .card i {
            font-size: 2.4rem;
            color: var(--gold);
            margin-bottom: 16px;
        }
        .card h3 {
            font-size: 1.5rem;
            margin-bottom: 12px;
        }
        /* code list */
        .code-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            margin-top: 32px;
        }
        .code-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            padding: 20px 28px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .code-tag {
            background: var(--warm-amber);
            color: #4A0007;
            font-weight: 700;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
        }
        .code-value {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--gold);
        }
        .faq-item {
            border-bottom: 1px solid rgba(255,255,255,0.15);
            padding: 22px 0;
        }
        .faq-item h4 {
            font-size: 1.2rem;
            color: var(--gold-light);
            margin-bottom: 10px;
            cursor: pointer;
        }
        /* cta */
        .cta-block {
            background: linear-gradient(135deg, rgba(255,215,0,0.15), rgba(255,159,0,0.1));
            border-radius: var(--radius-lg);
            padding: 48px;
            text-align: center;
        }
        /* footer */
        footer {
            background: #2E0A11;
            padding: 60px 0 30px;
            border-top: 2px solid var(--gold);
            color: var(--warm-white);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 36px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: var(--gold);
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col a:hover {
            color: var(--gold);
        }
        .footer-badges {
            margin-top: 12px;
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .badge-18 {
            background: red;
            color: white;
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 700;
        }
        .footer-bottom {
            text-align: center;
            border-top: 1px solid rgba(255,255,255,0.2);
            padding-top: 24px;
            font-size: 0.9rem;
            color: #ccc;
        }
        /* FAB */
        .fab-left {
            position: fixed;
            left: 24px;
            bottom: 80px;
            z-index: 50;
            background: rgba(0,0,0,0.8);
            backdrop-filter: blur(10px);
            border: 2px solid var(--gold);
            border-radius: 50%;
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 1.6rem;
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            transition: var(--transition);
            cursor: pointer;
        }
        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(255,215,0,0.5);
        }
        /* responsive */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 18px;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .hero-content {
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .mobile-menu.active {
                display: flex;
            }
            .hero-content {
                flex-direction: column;
                text-align: left;
            }
            .hero-visual {
                flex: 0 0 auto;
                width: 100%;
                max-width: 300px;
            }
            .hero-text h1 {
                font-size: 1.9rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .code-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .fab-left {
                left: 12px;
                bottom: 70px;
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-text h1 {
                font-size: 1.6rem;
            }
            .btn-primary {
                width: 100%;
                text-align: center;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
        }