/* roulang page: index */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0F3522;
            --accent-gold: #FFD700;
            --accent-gold-soft: #f0c929;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: #9bb8ad;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.28);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.22);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: var(--font-family);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-family);
            font-size: 1rem;
            outline: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-soft);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-link:hover {
            color: var(--accent-gold);
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #ffd700, #b8860b);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #0A2E1C;
            flex-shrink: 0;
            box-shadow: 0 0 16px rgba(255, 215, 0, 0.4);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

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

        .btn-login {
            padding: 8px 16px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .btn-signup {
            padding: 9px 20px;
            font-size: 0.875rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.35);
            background: linear-gradient(135deg, #ffe033, #ffd700);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: var(--shadow-gold);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            cursor: pointer;
            color: var(--text-primary);
            font-size: 1.2rem;
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 215, 0, 0.12);
            border-color: var(--border-gold);
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: flex-end;
            padding: 120px 0 60px;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            isolation: isolate;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 46, 28, 0.72) 0%, rgba(10, 46, 28, 0.55) 40%, rgba(10, 46, 28, 0.88) 80%, #0A2E1C 100%);
            z-index: -1;
        }

        .hero-content {
            width: 100%;
            max-width: 820px;
            margin: 0 auto;
            text-align: left;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(211, 47, 47, 0.85);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            border-radius: 50px;
            margin-bottom: 18px;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .hero-badge i {
            font-size: 0.7rem;
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }

        .hero-section h1 {
            font-size: clamp(1.8rem, 4.5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 18px;
            color: #fff;
            letter-spacing: -0.01em;
            text-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
        }

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

        .hero-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0 0 28px;
            line-height: 1.65;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 30px;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            background: linear-gradient(135deg, #FFD700, #f0c000);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 1rem;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.35);
            transition: all var(--transition-base);
        }

        .btn-hero-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(255, 215, 0, 0.5);
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 26px;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            cursor: pointer;
            backdrop-filter: blur(8px);
            transition: all var(--transition-base);
        }

        .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.5);
        }

        .countdown-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: rgba(0, 0, 0, 0.45);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-gold);
            backdrop-filter: blur(10px);
            margin-top: 8px;
        }

        .countdown-label {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .countdown-timer {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .countdown-item {
            text-align: center;
            min-width: 56px;
        }

        .countdown-item .num {
            display: block;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.1;
        }

        .countdown-item .unit {
            font-size: 0.65rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.06em;
        }

        /* ===== Section Base ===== */
        .section {
            padding: 70px 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-secondary);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 10px;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 800;
            color: #fff;
            margin: 0 0 12px;
            line-height: 1.25;
        }

        .section-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.65;
            margin: 0;
        }

        /* ===== Career Points / 卖点三连 ===== */
        .points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .point-card {
            padding: 28px 24px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .point-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
            opacity: 0;
            transition: opacity var(--transition-base);
        }

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

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

        .point-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

        .point-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
        }

        .point-card p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== Featured List / 爆款清单 ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-bottom: 30px;
        }

        .featured-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 20px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .featured-item:hover {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.06);
            transform: translateX(4px);
        }

        .featured-rank {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1a4a30, #0f3522);
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1rem;
            color: var(--accent-gold);
            flex-shrink: 0;
        }

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

        .featured-info h4 {
            font-size: 0.925rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .featured-info p {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .featured-arrow {
            color: var(--accent-gold);
            font-size: 0.85rem;
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }

        .featured-item:hover .featured-arrow {
            transform: translateX(3px);
        }

        .featured-covers {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 14px;
        }

        .featured-cover-wrapper {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 3/4;
            cursor: pointer;
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
        }

        .featured-cover-wrapper:hover {
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }

        .featured-cover-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .featured-cover-wrapper:hover img {
            transform: scale(1.05);
        }

        .featured-cover-label {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 10px 10px;
            background: linear-gradient(180deg, transparent, rgba(10, 46, 28, 0.92));
            font-size: 0.78rem;
            font-weight: 600;
            color: #fff;
            text-align: center;
        }

        /* ===== CMS / Latest Posts ===== */
        .cms-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 28px;
            align-items: start;
        }

        .cms-main-col {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .cms-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-soft);
            transition: all var(--transition-fast);
        }

        .cms-list-item:first-child {
            padding-top: 0;
        }

        .cms-list-item:hover {
            padding-left: 8px;
        }

        .cms-item-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--accent-gold);
            flex-shrink: 0;
            margin-top: 2px;
        }

        .cms-item-content {
            flex: 1;
            min-width: 0;
        }

        .cms-item-content h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
            line-height: 1.4;
        }

        .cms-item-content h4 a {
            color: #fff;
        }

        .cms-item-content h4 a:hover {
            color: var(--accent-gold);
        }

        .cms-item-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .cms-item-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .cms-item-summary {
            font-size: 0.83rem;
            color: var(--text-secondary);
            line-height: 1.55;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-empty {
            padding: 32px 20px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px dashed var(--border-soft);
            border-radius: var(--radius-md);
            text-align: center;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .cms-aside {
            position: sticky;
            top: 90px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .cms-aside-card {
            padding: 22px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
        }

        .cms-aside-card h5 {
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin: 0 0 14px;
        }

        .cms-aside-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-soft);
            font-size: 0.83rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .cms-aside-link:last-child {
            border-bottom: none;
        }

        .cms-aside-link:hover {
            color: var(--accent-gold);
        }

        .cms-aside-link i {
            font-size: 0.7rem;
            color: var(--accent-gold);
        }

        /* ===== Download Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            counter-reset: step-counter;
        }

        .step-card {
            padding: 28px 24px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            position: relative;
            transition: all var(--transition-base);
            counter-increment: step-counter;
        }

        .step-card::after {
            content: counter(step-counter);
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 2.4rem;
            font-weight: 900;
            color: rgba(255, 215, 0, 0.14);
            line-height: 1;
        }

        .step-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }

        .step-card .step-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }

        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }

        .step-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== Comparison Table ===== */
        .comparison-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            background: rgba(255, 255, 255, 0.02);
        }

        .comparison-table {
            width: 100%;
            min-width: 620px;
            border-collapse: collapse;
            font-size: 0.875rem;
        }

        .comparison-table th,
        .comparison-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-soft);
        }

        .comparison-table thead th {
            background: rgba(255, 215, 0, 0.06);
            font-weight: 700;
            color: #fff;
            font-size: 0.9rem;
        }

        .comparison-table thead th:first-child {
            border-radius: var(--radius-lg) 0 0 0;
        }

        .comparison-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }

        .comparison-table tbody td {
            color: var(--text-secondary);
        }

        .comparison-table tbody td:first-child {
            font-weight: 600;
            color: #fff;
        }

        .comparison-table tbody tr:hover td {
            background: rgba(255, 215, 0, 0.03);
        }

        .comparison-table .check-icon {
            color: #32CD32;
        }

        .comparison-table .x-icon {
            color: #D32F2F;
        }

        .comparison-table .gold-check {
            color: var(--accent-gold);
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 840px;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(255, 215, 0, 0.25);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.925rem;
            color: #fff;
            list-style: none;
            transition: color var(--transition-fast);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

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

        .faq-item summary .faq-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--accent-gold);
            transition: transform var(--transition-base);
        }

        .faq-item[open] summary .faq-toggle {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== CTA Form ===== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, #0f3522 0%, #123E25 40%, #0A2E1C 100%);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cta-content h2 {
            font-size: clamp(1.5rem, 2.8vw, 2rem);
            font-weight: 800;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.25;
        }

        .cta-content p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0 0 20px;
        }

        .cta-benefits {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .cta-benefit-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-gold);
        }

        .cta-form {
            padding: 30px;
            background: rgba(0, 0, 0, 0.35);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-gold);
        }

        .cta-form h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .cta-form .form-sub {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 0.9rem;
            transition: border-color var(--transition-fast);
        }

        .form-group input::placeholder {
            color: var(--text-muted);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--accent-gold);
            outline: 2px solid rgba(255, 215, 0, 0.25);
            outline-offset: 0;
        }

        .form-group select option {
            background: #0f3522;
            color: #fff;
        }

        .btn-submit {
            width: 100%;
            padding: 14px;
            background: linear-gradient(135deg, #FFD700, #f0c000);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 0.95rem;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.4);
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: #082315;
            padding: 50px 0 28px;
            border-top: 1px solid var(--border-soft);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 30px;
        }

        .footer-brand .logo-link {
            font-size: 0.95rem;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0 0 16px;
            max-width: 300px;
        }

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

        .payment-badge {
            padding: 6px 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col h4 {
            font-size: 0.82rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin: 0 0 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 0.82rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-badges {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-badge-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            font-size: 0.78rem;
            color: var(--text-secondary);
        }

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

        .footer-bottom {
            padding-top: 20px;
            border-top: 1px solid var(--border-soft);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin: 0;
        }

        .footer-bottom .domain {
            color: var(--accent-gold);
        }

        /* ===== FAB ===== */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #2a5c3e, #0f3522);
            border: 2px solid #FFD700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #FFD700;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            transition: all var(--transition-base);
            animation: fab-breathe 3s ease-in-out infinite;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
        }

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

        .fab-support .fab-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #D32F2F;
            border: 2px solid #fff;
            animation: fab-dot-blink 1.6s infinite;
        }

        @keyframes fab-breathe {
            0%, 100% { box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3); }
            50% { box-shadow: 0 4px 32px rgba(255, 215, 0, 0.55); }
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-covers {
                grid-template-columns: repeat(3, 1fr);
            }
            .points-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .cms-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cms-aside {
                position: static;
            }
        }

        @media (max-width: 768px) {
            .site-header .container {
                height: 64px;
                gap: 10px;
            }
            .logo-link {
                font-size: 0.85rem;
                gap: 8px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .nav-main {
                gap: 4px;
            }
            .nav-links {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(10, 46, 28, 0.98);
                padding: 12px 16px;
                gap: 4px;
                border-bottom: 1px solid var(--border-soft);
                z-index: 99;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                padding: 12px 16px;
                font-size: 0.9rem;
            }
            .nav-auth {
                margin-left: 0;
                gap: 6px;
            }
            .btn-login {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .btn-signup {
                padding: 7px 14px;
                font-size: 0.78rem;
            }
            .nav-toggle {
                display: flex;
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
            .hero-section {
                min-height: 85vh;
                padding: 100px 0 40px;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                padding: 12px 20px;
                font-size: 0.875rem;
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .countdown-item {
                min-width: 46px;
            }
            .countdown-item .num {
                font-size: 1.2rem;
            }
            .points-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .featured-covers {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-form {
                padding: 22px;
            }
            .fab-support {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                bottom: 80px;
                left: 12px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .site-header .container {
                height: 58px;
                gap: 6px;
            }
            .logo-link {
                font-size: 0.75rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }
            .btn-login {
                padding: 5px 10px;
                font-size: 0.7rem;
            }
            .btn-signup {
                padding: 6px 12px;
                font-size: 0.7rem;
            }
            .nav-toggle {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
            .nav-links {
                top: 58px;
                padding: 8px 12px;
            }
            .hero-section {
                min-height: 80vh;
                padding: 90px 0 30px;
            }
            .hero-section h1 {
                font-size: 1.5rem;
            }
            .hero-desc {
                font-size: 0.82rem;
            }
            .hero-badge {
                font-size: 0.65rem;
                padding: 5px 12px;
            }
            .countdown-bar {
                padding: 12px 14px;
                gap: 10px;
            }
            .countdown-item {
                min-width: 40px;
            }
            .countdown-item .num {
                font-size: 1rem;
            }
            .point-card {
                padding: 20px 16px;
            }
            .step-card {
                padding: 20px 16px;
            }
            .faq-item summary {
                font-size: 0.82rem;
                padding: 14px 16px;
            }
            .cta-form {
                padding: 18px 16px;
            }
            .cta-benefit-tag {
                font-size: 0.7rem;
                padding: 5px 10px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0F3522;
            --accent-gold: #FFD700;
            --accent-gold-soft: #f0c929;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: #9bb8ad;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.28);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.22);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
        }

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

        body {
            margin: 0;
            padding: 0;
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: var(--font-family);
            line-height: 1.7;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }
        a:hover { color: var(--accent-gold); }

        button, input, select, textarea {
            font-family: var(--font-family);
            font-size: 1rem;
            outline: none;
        }

        button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-soft);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo-link:hover { color: var(--accent-gold); }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #ffd700, #b8860b);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #0A2E1C;
            flex-shrink: 0;
            box-shadow: 0 0 16px rgba(255, 215, 0, 0.4);
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links li a:hover, .nav-links li a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 10px;
        }
        .btn-login {
            padding: 8px 16px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }
        .btn-signup {
            padding: 9px 20px;
            font-size: 0.875rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.35);
            background: linear-gradient(135deg, #ffe033, #ffd700);
        }
        .btn-signup:active {
            transform: translateY(0);
            box-shadow: var(--shadow-gold);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            cursor: pointer;
            font-size: 1.2rem;
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            border-color: var(--border-gold);
            color: var(--accent-gold);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrapper {
            padding-top: 110px;
            padding-bottom: 16px;
            background: linear-gradient(180deg, #0A2E1C 0%, #0A2E1C 85%, rgba(10,46,28,0.96) 100%);
            border-bottom: 1px solid var(--border-soft);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover { color: var(--accent-gold); }
        .breadcrumb span.separator { color: var(--accent-gold); opacity: 0.6; }
        .breadcrumb span.current { color: var(--text-secondary); }

        /* ===== Article Header ===== */
        .article-page {
            padding: 32px 0 72px;
            background: var(--bg-primary);
        }
        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 40px;
            align-items: start;
        }
        .article-main { min-width: 0; }

        .article-header {
            margin-bottom: 24px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--border-soft);
        }
        .article-category {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            margin-bottom: 14px;
        }
        .article-header h1 {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin: 0 0 14px;
            letter-spacing: 0.01em;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.875rem;
            color: var(--text-muted);
        }
        .article-meta i { color: var(--accent-gold); margin-right: 5px; }

        /* ===== Article Body ===== */
        .article-body {
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 32px;
            word-break: break-word;
        }
        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 28px 0 14px;
            line-height: 1.35;
        }
        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 22px 0 10px;
        }
        .article-body p { margin: 0 0 16px; }
        .article-body ul, .article-body ol {
            margin: 0 0 16px;
            padding-left: 22px;
        }
        .article-body li { margin-bottom: 8px; }
        .article-body a {
            color: var(--accent-gold);
            border-bottom: 1px solid rgba(255, 215, 0, 0.25);
        }
        .article-body a:hover { border-bottom-color: var(--accent-gold); }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            box-shadow: var(--shadow-card);
        }
        .article-body blockquote {
            margin: 20px 0;
            padding: 16px 20px;
            background: rgba(255, 215, 0, 0.06);
            border-left: 3px solid var(--accent-gold);
            border-radius: 4px;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-not-found {
            padding: 60px 20px;
            text-align: center;
            border-radius: var(--radius-lg);
            background: rgba(18, 62, 37, 0.35);
            border: 1px solid var(--border-soft);
        }
        .article-not-found i {
            font-size: 2.5rem;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }
        .article-not-found h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0 0 12px;
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 96px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: 0 6px 24px rgba(0,0,0,0.22);
        }
        .sidebar-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--accent-gold); font-size: 0.9rem; }

        .sidebar-cta {
            background: linear-gradient(150deg, #0F3522, #123E25);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-gold);
            position: relative;
            overflow: hidden;
        }
        .sidebar-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 20% 20%, rgba(255,215,0,0.12), transparent 60%);
            pointer-events: none;
        }
        .sidebar-cta h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 8px;
            position: relative;
        }
        .sidebar-cta p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            margin: 0 0 16px;
            position: relative;
        }
        .btn-gold-full {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 12px 20px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            position: relative;
            white-space: nowrap;
        }
        .btn-gold-full:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.4);
            color: #0A2E1C;
        }
        .btn-gold-full:active { transform: translateY(0); }

        .related-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .related-list li { margin-bottom: 10px; }
        .related-list li:last-child { margin-bottom: 0; }
        .related-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            padding: 8px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .related-list a:hover {
            background: rgba(255, 215, 0, 0.06);
            color: var(--accent-gold);
        }
        .related-list i { font-size: 0.7rem; color: var(--accent-gold); flex-shrink: 0; }

        .sidebar-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 12px;
        }
        .metric-box {
            background: rgba(255, 215, 0, 0.05);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            padding: 14px 12px;
            text-align: center;
        }
        .metric-box .number {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-gold);
        }
        .metric-box .label {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ===== Highlight Section ===== */
        .highlight-section {
            margin: 40px 0;
            padding: 0;
        }
        .highlight-callout {
            background: linear-gradient(135deg, rgba(255,215,0,0.1), rgba(255,215,0,0.04));
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }
        .highlight-callout .hl-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #ffd700, #b8860b);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #0A2E1C;
            flex-shrink: 0;
            box-shadow: 0 0 18px rgba(255, 215, 0, 0.35);
        }
        .highlight-callout .hl-text {
            flex: 1;
            min-width: 220px;
        }
        .highlight-callout .hl-text h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 6px;
        }
        .highlight-callout .hl-text p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 48px 0 56px;
            background: var(--bg-primary);
            border-top: 1px solid var(--border-soft);
        }
        .faq-section .container {
            max-width: 900px;
        }
        .faq-head {
            text-align: left;
            margin-bottom: 28px;
        }
        .faq-head h2 {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 8px;
        }
        .faq-head p {
            color: var(--text-muted);
            margin: 0;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover { border-color: var(--border-gold); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition-fast);
        }
        .faq-question:hover { color: var(--accent-gold); }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--accent-gold);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 0.875rem;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* ===== CTA Form ===== */
        .cta-section {
            padding: 56px 0 72px;
            background: var(--bg-primary);
        }
        .cta-wrapper {
            background: linear-gradient(150deg, #0F3522, #123E25);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 44px 40px;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
        }
        .cta-wrapper::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 10% 10%, rgba(255,215,0,0.1), transparent 55%);
            pointer-events: none;
        }
        .cta-info { position: relative; }
        .cta-info h2 {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 12px;
            line-height: 1.3;
        }
        .cta-info p {
            color: var(--text-secondary);
            margin: 0 0 20px;
        }
        .cta-benefits {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .cta-benefits li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }
        .cta-benefits i { color: var(--accent-gold); font-size: 0.85rem; }
        .cta-form {
            background: rgba(10, 46, 28, 0.7);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            position: relative;
        }
        .cta-form h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 18px;
            text-align: left;
        }
        .form-group {
            margin-bottom: 14px;
        }
        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 14px;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .form-group input::placeholder { color: var(--text-muted); }
        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--accent-gold);
            background: rgba(255, 255, 255, 0.08);
        }
        .form-group select option { background: var(--bg-primary); color: var(--text-primary); }
        .btn-submit {
            width: 100%;
            padding: 12px 20px;
            font-size: 0.95rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
        }
        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.4);
            color: #0A2E1C;
        }
        .btn-submit:active { transform: translateY(0); }
        .form-note {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 12px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #071F13;
            border-top: 1px solid var(--border-soft);
            padding: 52px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 0.9fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid var(--border-soft);
        }
        .footer-brand .logo-link {
            font-size: 1rem;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px;
            max-width: 420px;
        }
        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .payment-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-soft);
            border-radius: 50px;
            padding: 6px 12px;
            white-space: nowrap;
        }
        .payment-badge i { color: var(--accent-gold); }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul a:hover { color: var(--accent-gold); }
        .footer-badges {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .footer-badge-item i { color: var(--accent-gold); font-size: 0.75rem; }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .footer-bottom .domain { color: var(--text-secondary); }

        /* ===== FAB ===== */
        .fab-support {
            position: fixed;
            left: 20px;
            bottom: 88px;
            z-index: 60;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #ffd700, #b8860b);
            border: 2px solid #FFD700;
            color: #0A2E1C;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            transition: all var(--transition-base);
            animation: fab-breathe 3s ease-in-out infinite;
            opacity: 0.7;
        }
        .fab-support:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.45);
        }
        .fab-support:active {
            transform: scale(0.95) translateY(1px);
        }
        .fab-support .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #D32F2F;
            border: 2px solid #0A2E1C;
            animation: dot-blink 1.6s ease-in-out infinite;
        }
        @keyframes fab-breathe {
            0%, 100% { box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3); }
            50% { box-shadow: 0 4px 26px rgba(255, 215, 0, 0.5); }
        }
        @keyframes dot-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .cta-wrapper {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 32px 28px;
            }
        }

        @media (max-width: 768px) {
            .site-header .container { height: 64px; }
            .nav-links {
                display: none;
                flex-direction: column;
                align-items: stretch;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                backdrop-filter: blur(16px);
                border-bottom: 1px solid var(--border-soft);
                padding: 16px 20px;
                gap: 6px;
                z-index: 99;
                max-height: calc(100vh - 64px);
                overflow-y: auto;
            }
            .nav-links.open { display: flex; }
            .nav-links li a {
                padding: 12px 14px;
                font-size: 0.95rem;
                width: 100%;
            }
            .nav-auth {
                display: flex;
                gap: 8px;
                margin-left: auto;
            }
            .btn-login { padding: 7px 12px; font-size: 0.8rem; }
            .btn-signup { padding: 8px 14px; font-size: 0.8rem; }
            .nav-toggle { display: flex; }
            .logo-link { font-size: 0.95rem; }
            .logo-icon { width: 36px; height: 36px; font-size: 1rem; }
            .article-header h1 { font-size: 1.5rem; }
            .article-body { font-size: 0.95rem; }
            .article-sidebar { grid-template-columns: 1fr; }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .faq-head h2 { font-size: 1.4rem; }
            .cta-info h2 { font-size: 1.4rem; }
            .highlight-callout { padding: 20px; gap: 14px; }
            .highlight-callout .hl-icon { width: 44px; height: 44px; font-size: 1.2rem; }
            .fab-support { left: 14px; bottom: 72px; width: 46px; height: 46px; font-size: 1.15rem; }
        }

        @media (max-width: 520px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .article-header h1 { font-size: 1.3rem; line-height: 1.35; }
            .article-body { font-size: 0.92rem; }
            .brandcrumb-wrapper { padding-top: 90px; }
            .cta-wrapper { padding: 24px 18px; border-radius: var(--radius-lg); }
            .cta-form { padding: 20px 16px; }
            .sidebar-cta { padding: 20px 16px; }
            .faq-question { padding: 12px 16px; font-size: 0.88rem; }
            .faq-answer { font-size: 0.82rem; }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0F3522;
            --accent-gold: #FFD700;
            --accent-gold-soft: #f0c929;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: #9bb8ad;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.28);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.22);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
        }

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

        body {
            margin: 0;
            padding: 0;
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: var(--font-family);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-family);
            font-size: 1rem;
            outline: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-soft);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-link:hover {
            color: var(--accent-gold);
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #ffd700, #b8860b);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #0A2E1C;
            flex-shrink: 0;
            box-shadow: 0 0 16px rgba(255, 215, 0, 0.4);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

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

        .btn-login {
            padding: 8px 16px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .btn-signup {
            padding: 9px 20px;
            font-size: 0.875rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.35);
            background: linear-gradient(135deg, #ffe033, #ffd700);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: var(--shadow-gold);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 1.1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--accent-gold);
        }

        /* ===== Hero Category ===== */
        .hero-category {
            padding-top: 100px;
            padding-bottom: 60px;
            background: radial-gradient(circle at 70% 20%, rgba(211, 47, 47, 0.08) 0, transparent 45%),
                        radial-gradient(circle at 20% 30%, rgba(255, 215, 0, 0.05) 0, transparent 40%),
                        var(--bg-primary);
            position: relative;
            overflow: hidden;
        }

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

        .hero-content {
            text-align: left;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .hero-title {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--text-primary);
            line-height: 1.2;
            margin: 0 0 16px;
            letter-spacing: -0.02em;
        }

        .hero-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin: 0 0 28px;
            max-width: 560px;
            line-height: 1.65;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.35);
            color: #0A2E1C;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-gold);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .btn-secondary:hover {
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-value {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent-gold);
        }

        .hero-stat-label {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .hero-image-wrapper {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
            border: 1px solid var(--border-gold);
        }

        .hero-image-wrapper img {
            width: 100%;
            height: auto;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .hero-image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 16px 20px;
            background: linear-gradient(to top, rgba(10, 46, 28, 0.85) 0%, rgba(10, 46, 28, 0) 100%);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .hero-image-overlay span {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .hero-image-overlay .overlay-tag {
            background: var(--accent-red);
            color: #fff;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        /* ===== Sections ===== */
        .section {
            padding: 56px 0;
        }

        .section-heading {
            margin-bottom: 36px;
            text-align: left;
        }

        .section-heading.center {
            text-align: center;
        }

        .section-title {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 10px;
            letter-spacing: -0.01em;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.6;
            margin: 0;
        }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .feature-item {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            transition: all var(--transition-base);
        }

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

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

        .feature-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .feature-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.55;
        }

        /* ===== Games ===== */
        .games-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .game-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            cursor: pointer;
            text-align: left;
        }

        .game-card:hover {
            border-color: var(--border-gold);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35), 0 0 0 1px var(--border-gold);
            transform: translateY(-4px);
        }

        .game-card-image {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }

        .game-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .game-card:hover .game-card-image img {
            transform: scale(1.06);
        }

        .game-card-tag {
            position: absolute;
            top: 12px;
            right: 12px;
            padding: 4px 10px;
            border-radius: 50px;
            font-size: 0.65rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: #fff;
            background: var(--accent-red);
        }

        .game-card-body {
            padding: 16px 18px;
        }

        .game-card-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 6px;
        }

        .game-card-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0 0 14px;
            line-height: 1.5;
        }

        .game-card-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .game-card-btn:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-gold);
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-card {
            background: transparent;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 26px 20px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            text-align: left;
            transition: all var(--transition-base);
        }

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

        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #FFD700, #b8860b);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
            color: #0A2E1C;
            margin-bottom: 14px;
            box-shadow: var(--shadow-gold);
        }

        .step-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .step-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.55;
        }

        /* ===== Stats ===== */
        .stats-panel {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
        }

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

        .stat-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 22px;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            text-align: left;
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            font-size: 0.85rem;
            color: var(--accent-gold);
            transition: transform var(--transition-base);
        }

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

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: none;
        }

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

        /* ===== CTA Form ===== */
        .cta-panel {
            background: linear-gradient(135deg, #123E25 0%, #0A2E1C 60%, #1a3e2c 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .cta-panel .section-title {
            margin-bottom: 10px;
        }

        .cta-panel .section-subtitle {
            margin: 0 auto 28px;
            max-width: 620px;
        }

        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            max-width: 560px;
            margin: 0 auto;
        }

        .cta-form input {
            flex: 1 1 260px;
            padding: 12px 18px;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-soft);
            border-radius: 50px;
            transition: all var(--transition-fast);
        }

        .cta-form input::placeholder {
            color: var(--text-muted);
        }

        .cta-form input:focus {
            border-color: var(--accent-gold);
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-form button {
            flex: 0 0 auto;
            padding: 12px 28px;
            font-size: 0.9rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .cta-form button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.35);
        }

        .cta-form button:active {
            transform: translateY(0);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #062819;
            border-top: 1px solid var(--border-gold);
            padding: 48px 0 24px;
            margin-top: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 14px 0 18px;
            line-height: 1.6;
            max-width: 380px;
        }

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

        .payment-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-soft);
            border-radius: 50px;
        }

        .payment-badge i {
            color: var(--accent-gold);
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin: 0 0 14px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

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

        .footer-badges {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-soft);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }

        .footer-bottom .domain {
            color: var(--accent-gold);
            font-weight: 600;
        }

        .footer-bottom .legal-note {
            font-size: 0.7rem;
            color: var(--text-muted);
        }

        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #3b2a1a, #1a1008);
            border: 2px solid #FFD700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #FFD700;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.25);
            opacity: 0.7;
            transition: all var(--transition-base);
            animation: fab-breathe 2.4s ease-in-out infinite;
        }

        .fab::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 12px;
            height: 12px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: fab-dot 1.6s ease-in-out infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 30px rgba(255, 215, 0, 0.4);
        }

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

        @keyframes fab-breathe {
            0%, 100% { opacity: 0.7; }
            50% { opacity: 0.9; }
        }

        @keyframes fab-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(0.85); }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

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

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

        @media (max-width: 768px) {
            .site-header .container {
                height: 64px;
            }

            .nav-auth {
                margin-left: 0;
            }

            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-bottom: 1px solid var(--border-soft);
                padding: 16px 20px;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                display: none;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
            }

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

            .nav-links li a {
                padding: 12px 16px;
                font-size: 0.9rem;
                justify-content: flex-start;
            }

            .nav-auth {
                display: flex;
            }

            .nav-toggle {
                display: flex;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .hero-image-wrapper {
                max-width: 480px;
                margin: 0 auto;
            }

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

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

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

            .stats-panel {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                padding: 24px 16px;
            }

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

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-category {
                padding-top: 80px;
                padding-bottom: 40px;
            }

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

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-primary,
            .btn-secondary {
                justify-content: center;
            }

            .hero-stats {
                gap: 16px;
            }

            .stats-panel {
                grid-template-columns: 1fr;
            }

            .cta-panel {
                padding: 30px 18px;
            }

            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-form input,
            .cta-form button {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0F3522;
            --accent-gold: #FFD700;
            --accent-gold-soft: #f0c929;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: #9bb8ad;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.28);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.22);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
        }
        /* roulang page: category2 */
        :root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0F3522;
            --accent-gold: #FFD700;
            --accent-gold-soft: #f0c929;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: #9bb8ad;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.28);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.22);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            padding: 0;
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: var(--font-family);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }
        a:hover {
            color: var(--accent-gold);
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-family);
            font-size: 1rem;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-soft);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo-link:hover {
            color: var(--accent-gold);
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #ffd700, #b8860b);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #0A2E1C;
            flex-shrink: 0;
            box-shadow: 0 0 16px rgba(255, 215, 0, 0.4);
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-links li a i {
            font-size: 0.75rem;
            opacity: 0.8;
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 10px;
        }
        .btn-login {
            padding: 8px 16px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }
        .btn-signup {
            padding: 9px 20px;
            font-size: 0.875rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.35);
            background: linear-gradient(135deg, #ffe033, #ffd700);
        }
        .btn-signup:active {
            transform: translateY(0);
            box-shadow: var(--shadow-gold);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-sm);
            color: var(--accent-gold);
            font-size: 1.2rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: rgba(255, 215, 0, 0.2);
        }

        /* ===== Hero White-Paper ===== */
        .hero-guide {
            position: relative;
            padding: 140px 0 80px;
            background:
                radial-gradient(ellipse at 20% 20%, rgba(255, 215, 0, 0.08), transparent 50%),
                radial-gradient(ellipse at 80% 80%, rgba(211, 47, 47, 0.06), transparent 50%),
                linear-gradient(180deg, #0A2E1C 0%, #123E25 100%);
            overflow: hidden;
        }
        .hero-guide::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }
        .hero-guide .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-guide-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-gold);
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 20px;
        }
        .hero-guide h1 {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.2;
            margin: 0 0 16px;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }
        .hero-guide h1 em {
            font-style: normal;
            color: var(--accent-gold);
        }
        .hero-guide-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin: 0 0 28px;
            line-height: 1.7;
            max-width: 560px;
        }
        .hero-guide-toc {
            background: rgba(10, 46, 28, 0.7);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 28px;
            backdrop-filter: blur(8px);
        }
        .hero-guide-toc-title {
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-gold);
            margin: 0 0 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-guide-toc-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px 20px;
        }
        .hero-guide-toc-list li {
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.5;
        }
        .hero-guide-toc-list li i {
            color: var(--accent-gold);
            font-size: 0.7rem;
            flex-shrink: 0;
        }
        .hero-guide-cover-wrap {
            position: relative;
        }
        .hero-guide-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-gold);
            position: relative;
            aspect-ratio: 4/5;
        }
        .hero-guide-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-guide-cover::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(10, 46, 28, 0.85) 100%);
            pointer-events: none;
        }
        .hero-guide-cover-badge {
            position: absolute;
            top: 18px;
            right: 18px;
            z-index: 3;
            background: var(--accent-red);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            padding: 6px 14px;
            border-radius: 50px;
            box-shadow: 0 4px 16px rgba(211, 47, 47, 0.5);
        }
        .hero-guide-cover-label {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            z-index: 3;
            color: var(--text-primary);
            font-size: 0.85rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero-guide-cover-label i {
            color: var(--accent-gold);
        }
        .hero-guide-form {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            margin-top: 4px;
        }
        .hero-guide-form-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text-primary);
        }
        .hero-guide-form-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0 0 18px;
        }
        .form-group {
            margin-bottom: 14px;
        }
        .form-group label {
            display: block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-muted);
            opacity: 0.7;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 12px 24px;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            color: #0A2E1C;
            font-size: 1rem;
            font-weight: 700;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.4);
            background: linear-gradient(135deg, #ffe033, #ffd700);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-gold);
        }
        .btn-primary i {
            font-size: 0.9rem;
        }

        /* ===== Stats / Metrics ===== */
        .metrics-section {
            padding: 60px 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .metric-item {
            text-align: left;
            padding: 24px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
        }
        .metric-item:hover {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.04);
        }
        .metric-value {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .metric-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .metric-icon {
            color: var(--accent-gold);
            font-size: 1.5rem;
            margin-bottom: 12px;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 64px 0;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            margin: 0 0 10px;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin: 0;
            max-width: 680px;
            line-height: 1.7;
        }
        .section-header .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-gold);
            margin-bottom: 12px;
            background: rgba(255, 215, 0, 0.08);
            padding: 4px 12px;
            border-radius: 50px;
            border: 1px solid var(--border-gold);
        }

        /* ===== Tips Matrix ===== */
        .tips-matrix {
            background: var(--bg-primary);
        }
        .tips-matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tips-matrix-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .tips-matrix-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-gold-soft));
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .tips-matrix-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .tips-matrix-card:hover::before {
            opacity: 1;
        }
        .tips-matrix-card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }
        .tips-matrix-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--text-primary);
        }
        .tips-matrix-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }
        .tips-matrix-card ul {
            list-style: none;
            margin: 14px 0 0;
            padding: 0;
        }
        .tips-matrix-card ul li {
            font-size: 0.85rem;
            color: var(--text-secondary);
            padding: 4px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.5;
        }
        .tips-matrix-card ul li i {
            color: var(--accent-gold);
            font-size: 0.6rem;
            margin-top: 5px;
            flex-shrink: 0;
        }

        /* ===== Comparison ===== */
        .comparison-section {
            background: var(--bg-secondary);
        }
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .comparison-card {
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-soft);
            transition: all var(--transition-base);
        }
        .comparison-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }
        .comparison-card.mistakes {
            background: rgba(211, 47, 47, 0.06);
            border-color: rgba(211, 47, 47, 0.3);
        }
        .comparison-card.pro-tips {
            background: rgba(255, 215, 0, 0.05);
            border-color: var(--border-gold);
        }
        .comparison-card h3 {
            font-size: 1.3rem;
            font-weight: 800;
            margin: 0 0 6px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comparison-card.mistakes h3 {
            color: #ff6b6b;
        }
        .comparison-card.pro-tips h3 {
            color: var(--accent-gold);
        }
        .comparison-card .comparison-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0 0 18px;
        }
        .comparison-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-soft);
            font-size: 0.92rem;
            line-height: 1.6;
            color: var(--text-secondary);
        }
        .comparison-list li:last-child {
            border-bottom: none;
        }
        .comparison-list li i {
            flex-shrink: 0;
            margin-top: 4px;
        }
        .comparison-card.mistakes .comparison-list li i {
            color: #ff6b6b;
        }
        .comparison-card.pro-tips .comparison-list li i {
            color: var(--accent-gold);
        }

        /* ===== Process / Steps ===== */
        .process-section {
            background: var(--bg-primary);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        .process-step {
            padding: 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            position: relative;
            transition: all var(--transition-base);
        }
        .process-step:hover {
            border-color: var(--border-gold);
        }
        .process-step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            color: #0A2E1C;
            font-weight: 800;
            font-size: 0.95rem;
            margin-bottom: 14px;
        }
        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
        }
        .process-step p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-secondary);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-gold);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            user-select: none;
            transition: all var(--transition-fast);
        }
        .faq-question:hover {
            background: rgba(255, 215, 0, 0.04);
        }
        .faq-question h3 {
            font-size: 1rem;
            font-weight: 600;
            margin: 0;
            color: var(--text-primary);
            line-height: 1.5;
        }
        .faq-question i {
            color: var(--accent-gold);
            font-size: 0.9rem;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--bg-primary);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            pointer-events: none;
        }
        .cta-panel {
            position: relative;
            z-index: 2;
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: left;
            max-width: 680px;
            margin: 0 auto;
            box-shadow: var(--shadow-card);
        }
        .cta-panel h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin: 0 0 12px;
            color: var(--text-primary);
            line-height: 1.3;
        }
        .cta-panel p {
            font-size: 1rem;
            color: var(--text-muted);
            margin: 0 0 24px;
            line-height: 1.7;
        }
        .cta-panel .btn-primary {
            max-width: 280px;
        }
        .cta-panel .cta-note {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 14px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .cta-panel .cta-note i {
            color: var(--accent-gold);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #071F13;
            border-top: 1px solid var(--border-gold);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo-link {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 18px;
            max-width: 340px;
        }
        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .payment-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-soft);
            border-radius: 50px;
            padding: 6px 12px;
        }
        .payment-badge i {
            color: var(--accent-gold);
            font-size: 0.7rem;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent-gold);
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }
        .footer-badges {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .footer-badge-item i {
            color: var(--accent-gold);
            font-size: 0.9rem;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-soft);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .footer-bottom .domain {
            color: var(--accent-gold);
            font-weight: 600;
        }

        /* ===== FAB Classic & Royal ===== */
        .fab-royal {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #1c1c1e, #0A0A0A);
            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;
            cursor: pointer;
            opacity: 0.7;
            transition: all var(--transition-base);
            animation: fabFloat 3s ease-in-out infinite;
            -webkit-tap-highlight-color: transparent;
            min-width: 48px;
            min-height: 48px;
        }
        .fab-royal i {
            font-size: 1.4rem;
            color: var(--accent-gold);
            transition: transform var(--transition-base);
        }
        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5);
        }
        .fab-royal:hover i {
            transform: rotate(360deg);
        }
        .fab-royal:active {
            transform: scale(0.95) translateY(2px);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.3);
        }
        .fab-royal .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid #0A2E1C;
            animation: fabBlink 1.5s ease-in-out infinite;
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes fabBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-guide .container {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-guide-cover {
                max-width: 420px;
                margin: 0 auto;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tips-matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .site-header .container {
                height: 64px;
            }
            .logo-link {
                font-size: 0.9rem;
                gap: 6px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-main {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                backdrop-filter: blur(16px);
                border-bottom: 1px solid var(--border-soft);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px;
                gap: 8px;
                transform: translateY(-120%);
                transition: transform var(--transition-base);
                z-index: 99;
            }
            .nav-main.open {
                transform: translateY(0);
            }
            .nav-links {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .nav-links li a {
                padding: 12px 14px;
                font-size: 0.95rem;
            }
            .nav-auth {
                flex-direction: row;
                margin-left: 0;
                gap: 10px;
                padding-top: 10px;
                border-top: 1px solid var(--border-soft);
            }
            .btn-login,
            .btn-signup {
                flex: 1;
                text-align: center;
                padding: 10px 16px;
            }
            .hero-guide {
                padding: 110px 0 60px;
            }
            .hero-guide h1 {
                font-size: 1.9rem;
            }
            .hero-guide-toc-list {
                grid-template-columns: 1fr;
            }
            .hero-guide-form {
                padding: 22px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .metric-value {
                font-size: 1.7rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .tips-matrix-grid {
                grid-template-columns: 1fr;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .cta-panel {
                padding: 32px 24px;
            }
            .cta-panel h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .fab-royal {
                left: 12px;
                bottom: 84px;
                width: 50px;
                height: 50px;
            }
            .fab-royal i {
                font-size: 1.2rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .logo-link span:last-child {
                font-size: 0.78rem;
                white-space: normal;
                max-width: 100px;
                line-height: 1.2;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }
            .hero-guide h1 {
                font-size: 1.6rem;
            }
            .hero-guide-subtitle {
                font-size: 0.95rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .metric-value {
                font-size: 1.9rem;
            }
            .tips-matrix-card {
                padding: 20px;
            }
            .comparison-card {
                padding: 22px;
            }
            .process-step {
                padding: 20px;
            }
            .cta-panel h2 {
                font-size: 1.3rem;
            }
            .faq-question {
                padding: 15px 16px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 15px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #0F3522;
            --accent-gold: #FFD700;
            --accent-gold-soft: #f0c929;
            --accent-red: #D32F2F;
            --text-primary: #FFFFFF;
            --text-secondary: #D1F2EB;
            --text-muted: #9bb8ad;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.28);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.22);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            padding: 0;
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: var(--font-family);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }
        a:hover {
            color: var(--accent-gold);
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-family);
            font-size: 1rem;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            width: 100%;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-soft);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(10, 46, 28, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .logo-link:hover {
            color: var(--accent-gold);
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #ffd700, #b8860b);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #0A2E1C;
            flex-shrink: 0;
            box-shadow: 0 0 16px rgba(255, 215, 0, 0.4);
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 10px;
        }
        .btn-login {
            padding: 8px 16px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: none;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }
        .btn-signup {
            padding: 9px 20px;
            font-size: 0.875rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.35);
            background: linear-gradient(135deg, #ffe033, #ffd700);
        }
        .btn-signup:active {
            transform: translateY(0);
            box-shadow: var(--shadow-gold);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 1.2rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
        }
        /* ===== Hero / Flash Sale ===== */
        .hero {
            padding-top: 110px;
            padding-bottom: 70px;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 46, 28, 0.88) 0%, rgba(10, 46, 28, 0.94) 100%);
            z-index: 0;
        }
        .hero .container {
            position: relative;
            z-index: 1;
        }
        .hero-content {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
        }
        .hero-text h1 {
            font-size: 2.5rem;
            font-weight: 900;
            letter-spacing: -0.01em;
            line-height: 1.2;
            color: var(--accent-gold);
            margin: 0 0 16px;
        }
        .hero-text p.lead {
            font-size: 1.125rem;
            color: var(--text-secondary);
            margin: 0 0 28px;
            max-width: 560px;
        }
        .flash-sale-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--accent-red);
            padding: 10px 18px;
            border-radius: 50px;
            margin-bottom: 24px;
            width: fit-content;
            box-shadow: 0 0 20px rgba(211, 47, 47, 0.45);
        }
        .flash-sale-bar i {
            color: #FFD700;
            font-size: 1.1rem;
        }
        .flash-sale-bar .flash-label {
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.03em;
        }
        .countdown-timer {
            display: flex;
            gap: 6px;
            margin-left: auto;
        }
        .countdown-timer .time-block {
            background: rgba(0, 0, 0, 0.35);
            border-radius: 6px;
            padding: 5px 8px;
            font-weight: 700;
            color: #fff;
            min-width: 38px;
            text-align: center;
            font-size: 0.875rem;
        }
        .time-block span {
            display: block;
            font-size: 0.75rem;
            font-weight: 400;
            color: #FFD700;
        }
        .product-card {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .product-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(255, 215, 0, 0.15);
        }
        .product-badge {
            display: inline-block;
            background: var(--accent-red);
            color: #fff;
            font-weight: 700;
            font-size: 0.75rem;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .product-card h2 {
            font-size: 1.5rem;
            font-weight: 800;
            margin: 0 0 10px;
            color: var(--accent-gold);
        }
        .product-card p {
            color: var(--text-secondary);
            margin: 0 0 16px;
            font-size: 0.95rem;
        }
        .product-features {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .product-features li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding: 6px 0;
            border-bottom: 1px solid var(--border-soft);
        }
        .product-features li i {
            color: var(--accent-gold);
            font-size: 0.85rem;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            color: #0A2E1C;
            font-weight: 800;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            font-size: 1rem;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        /* ===== Sections Common ===== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-secondary);
        }
        .section-header {
            text-align: left;
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 1.875rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 8px;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1rem;
            margin: 0;
        }
        /* ===== Metrics ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: left;
            transition: transform var(--transition-base);
        }
        .metric-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-gold);
        }
        .metric-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.3rem;
            margin-bottom: 14px;
        }
        .metric-value {
            font-size: 1.875rem;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1.1;
            margin-bottom: 4px;
        }
        .metric-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        /* ===== Service Matrix ===== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .service-item {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-base);
            overflow: hidden;
            position: relative;
        }
        .service-item:hover {
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
        }
        .service-item .service-img {
            flex-shrink: 0;
            width: 140px;
            height: 140px;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-soft);
        }
        .service-item .service-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .service-info h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
        }
        .service-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0 0 12px;
        }
        .service-tag {
            display: inline-block;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
        }
        /* ===== Comparison ===== */
        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .comparison-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 28px;
            text-align: left;
            transition: all var(--transition-base);
            position: relative;
        }
        .comparison-card.featured {
            border-color: var(--accent-gold);
            box-shadow: 0 0 24px rgba(255, 215, 0, 0.18);
        }
        .comparison-card:hover {
            transform: translateY(-5px);
            border-color: var(--border-gold);
        }
        .plan-name {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .plan-price {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }
        .plan-price small {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-muted);
        }
        .plan-features {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .plan-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 7px 0;
            color: var(--text-secondary);
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border-soft);
        }
        .plan-features li i {
            color: var(--accent-gold);
            font-size: 0.85rem;
        }
        .btn-outline {
            display: inline-block;
            padding: 10px 22px;
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            font-weight: 700;
            border-radius: 50px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .btn-outline:hover {
            background: var(--accent-gold);
            color: #0A2E1C;
        }
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            text-align: left;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: rgba(255, 215, 0, 0.05);
        }
        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--accent-gold);
        }
        .faq-question.active i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 22px;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .faq-answer.active {
            max-height: 300px;
            padding: 0 22px 18px;
        }
        /* ===== CTA Form ===== */
        .cta-section {
            background: linear-gradient(135deg, #123E25 0%, #0A2E1C 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 48px;
            margin: 70px auto;
            max-width: 1000px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 40px;
            align-items: center;
        }
        .cta-text h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin: 0 0 12px;
        }
        .cta-text p {
            color: var(--text-secondary);
            margin: 0 0 20px;
        }
        .cta-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .cta-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .cta-list li i {
            color: var(--accent-gold);
        }
        .form-card {
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-soft);
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select {
            width: 100%;
            padding: 11px 14px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            transition: border-color var(--transition-fast);
        }
        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--accent-gold);
            outline: 2px solid rgba(255, 215, 0, 0.2);
            outline-offset: 0;
        }
        .form-group input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .btn-submit {
            width: 100%;
            padding: 12px 24px;
            background: linear-gradient(135deg, #FFD700, #f5c518);
            color: #0A2E1C;
            font-weight: 800;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            font-size: 1rem;
        }
        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
        }
        .btn-submit:active {
            transform: translateY(0);
        }
        /* ===== Footer ===== */
        .site-footer {
            background: #071f13;
            border-top: 1px solid var(--border-soft);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-link {
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin: 0 0 16px;
            max-width: 340px;
        }
        .footer-payment {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .payment-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-soft);
            padding: 6px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--text-secondary);
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--accent-gold);
            margin: 0 0 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-gold);
        }
        .footer-badges {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 0.85rem;
        }
        .footer-badge-item i {
            color: var(--accent-gold);
            font-size: 0.9rem;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-soft);
            padding-top: 20px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .footer-bottom .domain {
            color: var(--accent-gold);
            font-weight: 600;
        }
        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 90;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #ffd700, #b8860b);
            border: 2px solid #FFD700;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A2E1C;
            font-size: 1.4rem;
            cursor: pointer;
            opacity: 0.7;
            animation: float 3s ease-in-out infinite;
            transition: all var(--transition-base);
        }
        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            animation-play-state: paused;
        }
        .fab:active {
            transform: scale(0.95);
        }
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        .fab .notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: blink 1.5s infinite;
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-grid {
                grid-template-columns: 1fr 1fr;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 16px;
                border-bottom: 1px solid var(--border-soft);
                transform: translateY(-120%);
                transition: transform var(--transition-base);
                z-index: 99;
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .nav-links li a {
                padding: 12px 16px;
                font-size: 1rem;
            }
            .nav-auth {
                display: none;
            }
            .nav-main {
                gap: 0;
            }
            .section {
                padding: 50px 0;
            }
            .hero {
                padding-top: 90px;
                padding-bottom: 50px;
            }
            .hero-text h1 {
                font-size: 1.875rem;
            }
            .flash-sale-bar {
                flex-wrap: wrap;
                border-radius: 20px;
            }
            .countdown-timer {
                margin-left: 0;
                width: 100%;
                justify-content: space-between;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .cta-section {
                padding: 30px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .logo-link {
                font-size: 0.95rem;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .product-card {
                padding: 20px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .metric-value {
                font-size: 1.5rem;
            }
            .service-item {
                flex-direction: column;
            }
            .service-item .service-img {
                width: 100%;
                height: 180px;
            }
            .fab {
                width: 46px;
                height: 46px;
                bottom: 80px;
                left: 12px;
                font-size: 1.2rem;
            }
        }