/* roulang page: index */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #242426;
            --accent-bronze: #C5A059;
            --accent-gold: #FFBF00;
            --accent-muted-gold: #D4AC0D;
            --text-primary: #F5F5F7;
            --text-secondary: #D1CFC7;
            --text-muted: #A8A69E;
            --border-gold: rgba(197, 160, 89, 0.35);
            --border-gold-hover: rgba(197, 160, 89, 0.65);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.2);
            --transition-fast: 180ms ease;
            --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', 'Inter', -apple-system, Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-w: 1200px;
            --gutter: 1.5rem;
            --header-h: 72px;
        }

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

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

        body {
            font-family: var(--font-family);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

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

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

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            height: var(--header-h);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(18, 18, 18, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            line-height: 1.25;
            max-width: 260px;
            letter-spacing: 0.01em;
        }

        .logo-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #121212;
            font-weight: 800;
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-text .brand-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .logo-text .brand-tagline {
            font-size: 0.68rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex: 1;
            justify-content: center;
        }

        .nav-links a {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.9rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
        }

        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.12);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .btn-login {
            padding: 0.5rem 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

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

        .btn-signup {
            padding: 0.5rem 1.25rem;
            font-size: 0.85rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-sm);
            box-shadow: 0 2px 12px rgba(197, 160, 89, 0.3);
            transition: all var(--transition-fast);
            border: none;
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(255, 191, 0, 0.45);
            color: #121212;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            border: 1px solid var(--border-gold);
            background: transparent;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            background: rgba(18, 18, 18, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-gold);
            padding: 1rem 1.5rem 1.5rem;
            z-index: 999;
            flex-direction: column;
            gap: 0.4rem;
        }

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

        .mobile-menu a {
            display: block;
            padding: 0.75rem 1rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.1);
        }

        /* ===== Hero Section ===== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: var(--header-h);
            background-image: linear-gradient(135deg, rgba(18, 18, 18, 0.93) 0%, rgba(28, 28, 30, 0.88) 50%, rgba(18, 18, 18, 0.95) 100%), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 6px;
            background: linear-gradient(90deg, var(--accent-bronze), var(--accent-gold), var(--accent-muted-gold), var(--accent-bronze));
            background-size: 300% 100%;
            animation: shimmer 8s linear infinite;
        }

        @keyframes shimmer {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            padding: 3rem 0;
            position: relative;
            z-index: 2;
        }

        .hero-left {
            animation: fadeInUp 0.8s ease-out;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 1rem;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.1);
            border: 1px solid var(--border-gold);
            border-radius: 50px;
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }

        .hero-badge .pulse-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-gold);
            animation: pulseDot 1.5s ease-in-out infinite;
        }

        @keyframes pulseDot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        .hero-title {
            font-size: clamp(1.9rem, 4vw, 2.9rem);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 1.25rem;
            letter-spacing: -0.01em;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 1.75rem;
            max-width: 560px;
        }

        .hero-group-card {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1.25rem;
            background: rgba(28, 28, 30, 0.8);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow-card);
        }

        .group-count {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: 0.02em;
        }

        .group-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.3;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 0.875rem;
            margin-bottom: 2rem;
        }

        .btn-primary-hero {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.875rem 2rem;
            font-size: 1rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-md);
            box-shadow: 0 4px 20px rgba(197, 160, 89, 0.35);
            transition: all var(--transition-fast);
            border: none;
        }

        .btn-primary-hero:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 28px rgba(255, 191, 0, 0.5);
            color: #121212;
        }

        .btn-secondary-hero {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.875rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: rgba(36, 36, 38, 0.7);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .btn-secondary-hero:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            padding-top: 1.25rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 0.15rem;
        }

        .hero-stat .stat-value {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-gold);
        }

        .hero-stat .stat-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        .hero-right {
            position: relative;
            animation: fadeInUp 0.8s ease-out 0.15s both;
        }

        .hero-panel {
            background: rgba(28, 28, 30, 0.75);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(10px);
        }

        .hero-panel-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }

        .hero-panel-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .hero-panel-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 1rem;
            background: rgba(36, 36, 38, 0.5);
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--accent-bronze);
            font-size: 0.88rem;
            color: var(--text-secondary);
        }

        .hero-panel-item i {
            color: var(--accent-gold);
            font-size: 0.95rem;
            width: 20px;
            text-align: center;
        }

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

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

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.1);
            padding: 0.35rem 0.9rem;
            border-radius: 50px;
            border: 1px solid var(--border-gold);
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.8vw, 2.1rem);
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 0.875rem;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.65;
            max-width: 700px;
        }

        /* ===== Metrics Dashboard ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .metric-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }

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

        .metric-icon {
            font-size: 1.75rem;
            color: var(--accent-gold);
            margin-bottom: 0.75rem;
        }

        .metric-value {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            margin-bottom: 0.3rem;
        }

        .metric-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        /* ===== Discount Tiers / 优惠阶梯 ===== */
        .tiers-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .tier-card {
            position: relative;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.75rem 1.25rem;
            text-align: center;
            transition: all var(--transition-smooth);
            overflow: hidden;
        }

        .tier-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-bronze), var(--accent-gold));
            opacity: 0.5;
            transition: opacity var(--transition-fast);
        }

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

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

        .tier-people {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 0.5rem;
        }

        .tier-discount {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }

        .tier-benefit {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.5;
            margin-top: 0.5rem;
        }

        /* ===== Categories / 精选分类 ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-gold);
            background: var(--bg-tertiary);
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            display: block;
        }

        .category-card:hover {
            transform: translateY(-6px);
            border-color: var(--accent-gold);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), var(--shadow-gold);
        }

        .category-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

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

        .category-card-body {
            padding: 1.25rem;
        }

        .category-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        .category-card-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 0.75rem;
        }

        .category-card-link {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-gold);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            transition: all var(--transition-fast);
        }

        .category-card:hover .category-card-link {
            gap: 0.6rem;
        }

        /* ===== Package Comparison / 套餐对比 ===== */
        .packages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            align-items: stretch;
        }

        .package-card {
            position: relative;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
        }

        .package-card.featured {
            border-color: var(--accent-gold);
            background: linear-gradient(180deg, rgba(197, 160, 89, 0.08) 0%, var(--bg-tertiary) 40%);
            box-shadow: var(--shadow-gold);
            transform: scale(1.02);
        }

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

        .package-card.featured:hover {
            transform: translateY(-4px) scale(1.02);
        }

        .package-badge {
            position: absolute;
            top: -12px;
            right: 1.5rem;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            color: #121212;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.3rem 0.85rem;
            border-radius: 50px;
            letter-spacing: 0.03em;
            box-shadow: 0 2px 12px rgba(197, 160, 89, 0.4);
        }

        .package-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }

        .package-price {
            font-size: 1.9rem;
            font-weight: 900;
            color: var(--accent-gold);
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .package-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            margin-bottom: 1.5rem;
            flex: 1;
        }

        .package-features li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.45;
        }

        .package-features li i {
            color: var(--accent-gold);
            font-size: 0.8rem;
            width: 16px;
            flex-shrink: 0;
        }

        .package-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            padding: 0.75rem 1.5rem;
            font-size: 0.9rem;
            font-weight: 700;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            border: 1px solid var(--border-gold);
            color: var(--text-primary);
            background: rgba(36, 36, 38, 0.5);
        }

        .package-btn:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
        }

        .package-btn.featured-btn {
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            color: #121212;
            border: none;
        }

        .package-btn.featured-btn:hover {
            color: #121212;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-bronze));
            box-shadow: 0 4px 16px rgba(255, 191, 0, 0.4);
        }

        /* ===== Guarantee Strip / 保障条 ===== */
        .guarantee-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-card);
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 0.875rem;
        }

        .guarantee-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(197, 160, 89, 0.1);
            border: 1.5px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-gold);
            transition: all var(--transition-fast);
        }

        .guarantee-item:hover .guarantee-icon {
            background: rgba(197, 160, 89, 0.2);
            border-color: var(--accent-gold);
            box-shadow: 0 0 16px rgba(197, 160, 89, 0.3);
        }

        .guarantee-text {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.4;
            font-weight: 500;
        }

        /* ===== Ranking List / 排行列表 ===== */
        .ranking-table-wrap {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            overflow-x: auto;
        }

        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .ranking-table thead th {
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--text-muted);
            text-align: left;
            padding: 0.75rem 1rem;
            border-bottom: 1px solid var(--border-gold);
            white-space: nowrap;
        }

        .ranking-table tbody td {
            padding: 0.875rem 1rem;
            font-size: 0.88rem;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            white-space: nowrap;
        }

        .ranking-table tbody tr:last-child td {
            border-bottom: none;
        }

        .ranking-table tbody tr {
            transition: background var(--transition-fast);
        }

        .ranking-table tbody tr:hover {
            background: rgba(197, 160, 89, 0.06);
        }

        .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            font-size: 0.78rem;
            font-weight: 700;
            background: rgba(197, 160, 89, 0.1);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
        }

        .rank-badge.top1 {
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            color: #121212;
            border: none;
        }

        .trend-up {
            color: #4ade80;
            font-size: 0.82rem;
            font-weight: 600;
        }

        .trend-flat {
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        .heat-bar {
            display: inline-block;
            width: 60px;
            height: 6px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
        }

        .heat-bar span {
            display: block;
            height: 100%;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--accent-bronze), var(--accent-gold));
        }

        /* ===== Reward Preview / 奖励预览 ===== */
        .rewards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .reward-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.25rem;
            text-align: center;
            transition: all var(--transition-smooth);
        }

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

        .reward-icon-wrap {
            width: 64px;
            height: 64px;
            margin: 0 auto 1rem;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(197, 160, 89, 0.15), rgba(255, 191, 0, 0.05));
            border: 1.5px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .reward-name {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.35rem;
        }

        .reward-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ===== News / CMS List ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 2rem;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0.875rem;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 1.25rem;
            padding: 1.25rem;
            background: var(--bg-tertiary);
            border: 1px solid rgba(197, 160, 89, 0.2);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .news-item:hover {
            border-color: var(--border-gold-hover);
            background: rgba(36, 36, 38, 0.9);
            transform: translateX(4px);
        }

        .news-item-thumb {
            flex-shrink: 0;
            width: 72px;
            height: 72px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
        }

        .news-item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-item-body {
            flex: 1;
            min-width: 0;
        }

        .news-item-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }

        .news-item:hover .news-item-title {
            color: var(--accent-gold);
        }

        .news-item-meta {
            display: flex;
            gap: 0.875rem;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .news-item-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        .news-sidebar {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            height: fit-content;
        }

        .news-sidebar-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }

        .news-sidebar-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .news-sidebar-item:last-child {
            border-bottom: none;
        }

        .news-sidebar-item .side-rank {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--accent-gold);
            min-width: 30px;
        }

        .news-sidebar-item .side-text {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.4;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            max-width: 850px;
        }

        .faq-item {
            background: var(--bg-tertiary);
            border: 1px solid rgba(197, 160, 89, 0.2);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.125rem 1.5rem;
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            text-align: left;
            transition: all var(--transition-fast);
        }

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

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

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

        .faq-answer {
            display: none;
            padding: 0 1.5rem 1.25rem;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .faq-item.open .faq-answer {
            display: block;
            animation: fadeIn 0.3s ease-out;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-6px); }
            to { opacity: 1; transform: translateY(0); }
        }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(24px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ===== Limited Time Entry / 限时入口 ===== */
        .limit-entry-section {
            background: linear-gradient(135deg, rgba(197, 160, 89, 0.06) 0%, var(--bg-secondary) 50%, rgba(197, 160, 89, 0.04) 100%);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .limit-entry-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        .limit-entry-left {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .countdown-box {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.875rem 1.5rem;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-gold);
        }

        .countdown-box .countdown-num {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-primary);
        }

        .limit-entry-right form {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            box-shadow: var(--shadow-card);
        }

        .form-group {
            margin-bottom: 1.25rem;
        }

        .form-group label {
            display: block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 0.4rem;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 0.75rem 1rem;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            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);
            outline: none;
            box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.1);
        }

        .form-submit-btn {
            width: 100%;
            padding: 0.875rem;
            font-size: 0.95rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            border: none;
            box-shadow: 0 2px 16px rgba(197, 160, 89, 0.3);
        }

        .form-submit-btn:hover {
            box-shadow: 0 4px 24px rgba(255, 191, 0, 0.45);
            transform: translateY(-1px);
        }

        /* ===== FAB ===== */
        .floating-fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 900;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.65);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.65)), linear-gradient(135deg, #CCFF00, #00F0FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #00F0FF;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transition: all var(--transition-smooth);
            opacity: 0.65;
            animation: fabBreath 3s ease-in-out infinite;
            min-width: 56px;
            min-height: 56px;
            touch-action: manipulation;
        }

        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.08);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.55);
            color: #CCFF00;
        }

        .floating-fab:active {
            transform: scale(0.95);
            border-color: #FF007F;
            color: #FF007F;
            transition-duration: 80ms;
        }

        .floating-fab .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #FF007F;
            border: 2px solid #0F0C20;
            animation: fabNotif 1.2s ease-in-out infinite;
        }

        @keyframes fabBreath {
            0%, 100% { opacity: 0.65; }
            50% { opacity: 0.85; }
        }

        @keyframes fabNotif {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.5); opacity: 0.5; }
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand .logo {
            margin-bottom: 1rem;
            max-width: 100%;
        }

        .footer-brand .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 1.25rem;
        }

        .footer-brand .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.72rem;
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
            border: 1px solid var(--border-gold);
            padding: 0.3rem 0.75rem;
            border-radius: 50px;
            letter-spacing: 0.02em;
        }

        .footer-col-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1.125rem;
            letter-spacing: 0.03em;
        }

        .footer-col-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.625rem;
        }

        .footer-col-list a {
            font-size: 0.82rem;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        .footer-col-list a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-bottom .copyright {
            line-height: 1.5;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .hero-right {
                max-width: 560px;
            }

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

            .guarantee-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }

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

            .packages-grid .package-card.featured {
                grid-column: span 2;
                transform: scale(1);
            }

            .packages-grid .package-card.featured:hover {
                transform: translateY(-4px);
            }

            .news-layout {
                grid-template-columns: 1fr;
            }

            .limit-entry-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }

            .nav-links a {
                padding: 0.5rem 0.65rem;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
                --gutter: 1rem;
            }

            .section {
                padding: 3rem 0;
            }

            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .logo {
                max-width: 200px;
            }

            .logo-text .brand-name {
                font-size: 0.78rem;
            }

            .logo-text .brand-tagline {
                font-size: 0.6rem;
            }

            .hero-section {
                min-height: auto;
                padding-bottom: 4rem;
            }

            .hero-title {
                font-size: clamp(1.6rem, 5vw, 2rem);
            }

            .hero-desc {
                font-size: 0.95rem;
            }

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

            .hero-buttons .btn-primary-hero,
            .hero-buttons .btn-secondary-hero {
                width: 100%;
                justify-content: center;
            }

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

            .metrics-grid,
            .tiers-grid,
            .rewards-grid {
                grid-template-columns: 1fr 1fr;
            }

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

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

            .packages-grid .package-card.featured {
                grid-column: auto;
                transform: none;
            }

            .guarantee-strip {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .guarantee-item {
                flex-direction: row;
                align-items: center;
            }

            .news-item {
                flex-direction: column;
                gap: 0.75rem;
            }

            .news-item-thumb {
                width: 100%;
                height: 140px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.75rem;
            }

            .floating-fab {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                min-width: 48px;
                min-height: 48px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .metrics-grid,
            .tiers-grid,
            .rewards-grid {
                grid-template-columns: 1fr;
            }

            .metric-card,
            .tier-card,
            .reward-card {
                padding: 1.25rem 1rem;
            }

            .hero-panel {
                padding: 1.25rem;
            }

            .hero-panel-item {
                padding: 0.6rem 0.8rem;
                font-size: 0.8rem;
            }

            .section-title {
                font-size: 1.35rem;
            }

            .section-desc {
                font-size: 0.9rem;
            }

            .ranking-table-wrap {
                padding: 1rem;
            }

            .btn-login {
                padding: 0.45rem 0.75rem;
                font-size: 0.78rem;
            }

            .btn-signup {
                padding: 0.45rem 0.9rem;
                font-size: 0.78rem;
            }

            .faq-question {
                padding: 1rem 1rem;
                font-size: 0.88rem;
            }

            .faq-answer {
                padding: 0 1rem 1rem;
                font-size: 0.82rem;
            }
        }

/* roulang page: article */
/* ===== Design System (shared) ===== */
        :root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #242426;
            --accent-bronze: #C5A059;
            --accent-gold: #FFBF00;
            --accent-muted-gold: #D4AC0D;
            --text-primary: #F5F5F7;
            --text-secondary: #D1CFC7;
            --text-muted: #A8A69E;
            --border-gold: rgba(197, 160, 89, 0.35);
            --border-gold-hover: rgba(197, 160, 89, 0.65);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.2);
            --transition-fast: 180ms ease;
            --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', 'Inter', -apple-system, Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-w: 1200px;
            --gutter: 1.5rem;
            --header-h: 72px;
        }
        
        /* ===== Reset / Base ===== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-gold);
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-w);
            margin: 0 auto;
            padding-left: var(--gutter);
            padding-right: var(--gutter);
        }
        
        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            height: var(--header-h);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(18, 18, 18, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            line-height: 1.25;
            max-width: 260px;
            letter-spacing: 0.01em;
        }
        .logo-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #121212;
            font-weight: 800;
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-text .brand-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .logo-text .brand-tagline {
            font-size: 0.68rem;
            color: var(--text-muted);
            font-weight: 400;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex: 1;
            justify-content: center;
        }
        .nav-links a {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.9rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
        }
        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.12);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .btn-login {
            padding: 0.5rem 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
        }
        .btn-signup {
            padding: 0.5rem 1.25rem;
            font-size: 0.85rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(197, 160, 89, 0.3);
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(197, 160, 89, 0.45);
            color: #121212;
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 0.5rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(197, 160, 89, 0.08);
        }
        
        /* ===== Article Main ===== */
        .article-main {
            padding-top: calc(var(--header-h) + 2rem);
            padding-bottom: 4rem;
        }
        .article-breadcrumb {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-wrap: wrap;
        }
        .article-breadcrumb a {
            color: var(--text-secondary);
        }
        .article-breadcrumb a:hover {
            color: var(--accent-gold);
        }
        .article-breadcrumb .separator {
            opacity: 0.5;
        }
        .article-header {
            margin-bottom: 2rem;
        }
        .article-header h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .article-meta i {
            color: var(--accent-bronze);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
        }
        @media (min-width: 1024px) {
            .article-layout {
                grid-template-columns: minmax(0, 1fr) 320px;
                align-items: start;
            }
            .article-header h1 {
                font-size: 2.5rem;
            }
        }
        .article-content {
            min-width: 0;
        }
        .article-body {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 2rem;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-card);
        }
        .article-body p {
            margin-bottom: 1.25rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 2rem 0 1rem;
            color: var(--accent-gold);
        }
        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 1.5rem 0 0.75rem;
            color: var(--text-primary);
        }
        .article-body ul, .article-body ol {
            margin: 0 0 1.5rem 1.5rem;
            color: var(--text-secondary);
        }
        .article-body li {
            margin-bottom: 0.5rem;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
        }
        .article-body blockquote {
            border-left: 3px solid var(--accent-bronze);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: rgba(197, 160, 89, 0.08);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-primary);
            font-style: italic;
        }
        .article-body a {
            color: var(--accent-gold);
            text-decoration: underline;
        }
        .article-body a:hover {
            color: var(--accent-bronze);
        }
        .not-found {
            text-align: center;
            padding: 4rem 2rem;
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-gold);
        }
        .not-found h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .not-found p {
            color: var(--text-muted);
            margin-bottom: 2rem;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 2rem;
            font-size: 0.95rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(197, 160, 89, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(197, 160, 89, 0.45);
            color: #121212;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.5rem;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .btn-secondary:hover {
            background: rgba(197, 160, 89, 0.1);
            border-color: var(--border-gold-hover);
            color: var(--accent-gold);
        }
        
        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .sidebar-widget {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-card);
        }
        .sidebar-widget h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }
        .sidebar-widget ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .sidebar-widget ul li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .sidebar-widget ul li a i {
            color: var(--accent-bronze);
            font-size: 0.8rem;
        }
        .sidebar-widget ul li a:hover {
            color: var(--accent-gold);
            transform: translateX(4px);
        }
        .sidebar-widget p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 1.25rem;
        }
        .sidebar-widget.highlight {
            background: linear-gradient(135deg, rgba(197, 160, 89, 0.12), rgba(197, 160, 89, 0.04));
            border-color: var(--border-gold-hover);
        }
        
        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-gold);
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }
        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
            }
        }
        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .footer-brand .logo {
            max-width: 100%;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--accent-gold);
            font-weight: 600;
        }
        .footer-badge i {
            color: var(--accent-bronze);
        }
        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-col-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .footer-col-list li a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .footer-col-list li a i {
            color: var(--accent-bronze);
            font-size: 0.7rem;
        }
        .footer-col-list li a:hover {
            color: var(--accent-gold);
            transform: translateX(4px);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-gold);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        
        /* ===== Responsive Navigation ===== */
        @media (max-width: 1023px) {
            .nav-links {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: flex-start;
                background: rgba(18, 18, 18, 0.98);
                backdrop-filter: blur(12px);
                padding: 1rem 1.5rem;
                gap: 0.25rem;
                transform: translateY(-110%);
                transition: transform var(--transition-smooth);
                border-bottom: 1px solid var(--border-gold);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .nav-links a {
                width: 100%;
                padding: 0.75rem 1rem;
                font-size: 1rem;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-toggle {
                display: block;
                margin-left: 0.5rem;
            }
            .nav-actions {
                gap: 0.25rem;
            }
            .btn-login {
                padding: 0.4rem 0.8rem;
                font-size: 0.8rem;
            }
            .btn-signup {
                padding: 0.4rem 1rem;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 640px) {
            :root {
                --header-h: 64px;
                --gutter: 1rem;
            }
            .logo-text .brand-name {
                font-size: 0.8rem;
            }
            .logo-text .brand-tagline {
                font-size: 0.6rem;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .article-main {
                padding-top: calc(var(--header-h) + 1.5rem);
                padding-bottom: 2rem;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            .article-body {
                padding: 1.5rem;
            }
            .article-meta {
                gap: 1rem;
                font-size: 0.8rem;
            }
            .article-layout {
                gap: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #242426;
            --accent-bronze: #C5A059;
            --accent-gold: #FFBF00;
            --accent-muted-gold: #D4AC0D;
            --text-primary: #F5F5F7;
            --text-secondary: #D1CFC7;
            --text-muted: #A8A69E;
            --border-gold: rgba(197, 160, 89, 0.35);
            --border-gold-hover: rgba(197, 160, 89, 0.65);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.2);
            --transition-fast: 180ms ease;
            --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', 'Inter', -apple-system, Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-w: 1200px;
            --gutter: 1.5rem;
            --header-h: 72px;
        }
        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
                --gutter: 1rem;
            }
        }
        /* roulang page: category1 */
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-gold);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-w);
            margin: 0 auto;
            padding-left: var(--gutter);
            padding-right: var(--gutter);
        }
        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            height: var(--header-h);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(18, 18, 18, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            line-height: 1.25;
            max-width: 260px;
            letter-spacing: 0.01em;
            flex-shrink: 0;
        }
        .logo-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #121212;
            font-weight: 800;
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-text .brand-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .logo-text .brand-tagline {
            font-size: 0.68rem;
            color: var(--text-muted);
            font-weight: 400;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex: 1;
            justify-content: center;
        }
        .nav-links a {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.9rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
        }
        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.12);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .btn-login {
            padding: 0.5rem 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
            border-color: var(--border-gold);
        }
        .btn-signup {
            padding: 0.5rem 1.25rem;
            font-size: 0.85rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: var(--shadow-gold);
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(197, 160, 89, 0.35);
            color: #121212;
        }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 1.2rem;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
        }
        /* Mobile nav */
        @media (max-width: 992px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(18, 18, 18, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                gap: 0.25rem;
                padding: 1rem;
                border-bottom: 1px solid var(--border-gold);
                transform: translateY(-110%);
                transition: transform var(--transition-smooth);
                z-index: 999;
                max-height: calc(100vh - var(--header-h));
                overflow-y: auto;
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .nav-links a {
                padding: 0.75rem 1rem;
                font-size: 1rem;
                justify-content: flex-start;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-actions {
                gap: 0.35rem;
            }
            .btn-login {
                padding: 0.4rem 0.75rem;
                font-size: 0.8rem;
            }
            .btn-signup {
                padding: 0.4rem 0.9rem;
                font-size: 0.8rem;
            }
            .logo-text .brand-name {
                font-size: 0.78rem;
                max-width: 160px;
            }
            .logo-text .brand-tagline {
                font-size: 0.6rem;
            }
        }
        @media (max-width: 520px) {
            .logo-text .brand-name {
                font-size: 0.72rem;
                max-width: 120px;
            }
            .logo-text .brand-tagline {
                display: none;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
            .nav-actions {
                gap: 0.25rem;
            }
            .btn-login {
                padding: 0.35rem 0.6rem;
                font-size: 0.75rem;
            }
            .btn-signup {
                padding: 0.35rem 0.7rem;
                font-size: 0.75rem;
            }
        }
        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 1.75rem;
            font-size: 0.95rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(197, 160, 89, 0.45);
            color: #121212;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 1.75rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-sm);
            transition: all var(--transition-smooth);
        }
        .btn-secondary:hover {
            background: rgba(197, 160, 89, 0.08);
            border-color: var(--border-gold-hover);
            color: var(--accent-gold);
        }
        /* ===== Hero ===== */
        .hero-invite {
            position: relative;
            padding: calc(var(--header-h) + 3rem) 0 4rem;
            background: url('/assets/images/backpic/back-1.jpg') center / cover no-repeat;
            min-height: 80vh;
            display: flex;
            align-items: center;
            isolation:: isolate;
        }
        .hero-invite::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(18, 18, 18, 0.85) 0%, rgba(12, 12, 12, 0.65) 100%);
            z-index: 1;
        }
        .hero-invite .container {
            position: relative;
            z-index: 2;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3rem;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1.1rem;
            background: rgba(197, 160, 89, 0.12);
            border: 1px solid var(--border-gold);
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 1.25rem;
        }
        .hero-badge i {
            font-size: 0.9rem;
        }
        .hero-title {
            font-size: 2.6rem;
            line-height: 1.2;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }
        .hero-title span {
            color: var(--accent-gold);
        }
        .hero-subtitle {
            font-size: 1.1rem;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            max-width: 560px;
        }
        .invite-card {
            background: rgba(28, 28, 30, 0.92);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2rem;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card);
        }
        .invite-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1.25rem;
        }
        .reward-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        .reward-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .reward-item i {
            color: var(--accent-gold);
            font-size: 1rem;
            width: 1.5rem;
            text-align: center;
        }
        .progress-wrap {
            margin: 1.5rem 0;
        }
        .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }
        .progress-bar {
            height: 10px;
            background: var(--bg-tertiary);
            border-radius: 999px;
            overflow: hidden;
            border: 1px solid var(--border-gold);
        }
        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent-bronze), var(--accent-gold));
            border-radius: 999px;
            transition: width var(--transition-smooth);
            width: 65%;
        }
        .invite-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-top: 1.5rem;
        }
        /* ===== Metrics ===== */
        .metrics-section {
            padding: 4rem 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .metric-card {
            text-align: left;
            background: var(--bg-tertiary);
            padding: 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid transparent;
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }
        .metric-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-3px);
        }
        .metric-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }
        .metric-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 0.5rem;
        }
        /* ===== Service Matrix ===== */
        .service-section {
            padding: 4rem 0;
        }
        .section-header {
            margin-bottom: 2.5rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.7;
        }
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .service-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            border: 1px solid transparent;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-bronze), var(--accent-gold));
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .service-card:hover {
            border-color: var(--border-gold);
            transform: translateY(-5px);
            box-shadow: var(--shadow-card);
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: rgba(197, 160, 89, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            margin-bottom: 1.25rem;
            border: 1px solid var(--border-gold);
        }
        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        .service-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 1rem;
        }
        .service-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .service-card ul li {
            font-size: 0.9rem;
            color: var(--text-muted);
            padding-left: 1.25rem;
            position: relative;
            margin-bottom: 0.5rem;
        }
        .service-card ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent-gold);
            font-weight: 700;
        }
        /* ===== Comparison ===== */
        .comparison-section {
            padding: 4rem 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }
        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-gold);
            background: var(--bg-tertiary);
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
            min-width: 650px;
        }
        .comparison-table thead {
            background: rgba(197, 160, 89, 0.08);
        }
        .comparison-table th {
            padding: 1rem 1.25rem;
            text-align: left;
            font-weight: 700;
            color: var(--accent-gold);
            border-bottom: 1px solid var(--border-gold);
            white-space: nowrap;
        }
        .comparison-table td {
            padding: 1rem 1.25rem;
            border-bottom: 1px solid rgba(197, 160, 89, 0.12);
            color: var(--text-secondary);
            vertical-align: top;
        }
        .comparison-table tr:last-child td {
            border-bottom: none;
        }
        .comparison-table .highlight {
            color: var(--text-primary);
            font-weight: 600;
        }
        .badge-recommend {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            color: #121212;
            font-weight: 700;
            font-size: 0.75rem;
            border-radius: 999px;
            margin-left: 0.5rem;
        }
        /* ===== FAQ ===== */
        .faq-section {
            padding: 4rem 0;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            border: 1px solid transparent;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-gold);
        }
        .faq-question {
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 1rem;
            user-select: none;
        }
        .faq-question i {
            transition: transform var(--transition-smooth);
            color: var(--accent-gold);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
            padding: 0 1.5rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            padding: 0 1.5rem 1.25rem;
        }
        /* ===== CTA Form ===== */
        .cta-section {
            padding: 4rem 0;
            background: url('/assets/images/backpic/back-2.jpg') center / cover no-repeat;
            position: relative;
            isolation: isolate;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(12, 12, 12, 0.88);
            z-index: -1;
        }
        .cta-card {
            background: rgba(28, 28, 30, 0.95);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: var(--shadow-card);
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-card h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        .cta-card p {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.7;
        }
        .form-group {
            margin-bottom: 1.25rem;
        }
        .form-label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .form-input {
            width: 100%;
            padding: 0.85rem 1rem;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 0.95rem;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .form-input:focus {
            outline: none;
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.2);
        }
        .form-input::placeholder {
            color: var(--text-muted);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-gold);
            padding: 3rem 0 1.5rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-brand .logo {
            max-width: none;
            margin-bottom: 1rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1rem;
        }
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--accent-gold);
            font-weight: 600;
        }
        .footer-badge i {
            font-size: 1rem;
        }
        .footer-col-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        .footer-col-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col-list li {
            margin-bottom: 0.5rem;
        }
        .footer-col-list a {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: color var(--transition-fast);
        }
        .footer-col-list a i {
            font-size: 0.75rem;
            color: var(--accent-gold);
        }
        .footer-col-list a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid rgba(197, 160, 89, 0.15);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom span {
            color: var(--accent-gold);
        }
        /* ===== FAB ===== */
        .floating-fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(12, 12, 12, 0.7);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.4rem;
            box-shadow: 0 0 15px rgba(255, 191, 0, 0.3);
            transition: all var(--transition-smooth);
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
            cursor: pointer;
        }
        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(255, 191, 0, 0.55);
        }
        .floating-fab:active {
            transform: scale(0.95);
        }
        .floating-fab .notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #FF0000;
            border-radius: 50%;
            border: 2px solid #121212;
            animation: blinkDot 1.5s infinite;
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-card {
                padding: 1.5rem;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .metric-card {
                padding: 1rem;
            }
            .metric-number {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .invite-card {
                padding: 1.25rem;
            }
            .invite-actions {
                flex-direction: column;
            }
            .btn-primary, .btn-secondary {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #242426;
            --accent-bronze: #C5A059;
            --accent-gold: #FFBF00;
            --accent-muted-gold: #D4AC0D;
            --text-primary: #F5F5F7;
            --text-secondary: #D1CFC7;
            --text-muted: #A8A69E;
            --border-gold: rgba(197, 160, 89, 0.35);
            --border-gold-hover: rgba(197, 160, 89, 0.65);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.2);
            --transition-fast: 180ms ease;
            --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', 'Inter', -apple-system, Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-w: 1200px;
            --gutter: 1.5rem;
            --header-h: 72px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-gold);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-w);
            margin: 0 auto;
            padding-left: var(--gutter);
            padding-right: var(--gutter);
        }
        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            height: var(--header-h);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(18, 18, 18, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            line-height: 1.25;
            max-width: 280px;
            letter-spacing: 0.01em;
        }
        .logo-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #121212;
            font-weight: 800;
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-text .brand-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .logo-text .brand-tagline {
            font-size: 0.68rem;
            color: var(--text-muted);
            font-weight: 400;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex: 1;
            justify-content: center;
        }
        .nav-links a {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.9rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
        }
        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.12);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .btn-login {
            padding: 0.5rem 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .btn-login:hover {
            background: rgba(255, 255, 255, 0.05);
        }
        .btn-signup {
            padding: 0.5rem 1.25rem;
            font-size: 0.85rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(197, 160, 89, 0.35);
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            background: none;
            border: none;
        }
        /* ===== Common Section Styles ===== */
        main {
            padding-top: var(--header-h);
        }
        .section-padding {
            padding: 4rem 0;
        }
        .section-title {
            font-size: 1.9rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.6;
            margin-bottom: 2rem;
        }
        .gold-gradient-text {
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }
        .card:hover {
            border-color: var(--border-gold-hover);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.25rem 0.75rem;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 9999px;
            background: rgba(197, 160, 89, 0.12);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.8rem 1.7rem;
            font-size: 0.95rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-fast);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(197, 160, 89, 0.4);
            color: #121212;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.8rem 1.7rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .btn-outline:hover {
            border-color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
            color: var(--accent-gold);
        }
        /* ===== Hero ===== */
        .hero-category {
            display: flex;
            align-items: center;
            gap: 2rem;
            padding: 3rem 0 4rem;
            background: radial-gradient(circle at 0% 20%, rgba(197, 160, 89, 0.08), transparent 40%), radial-gradient(circle at 100% 80%, rgba(197, 160, 89, 0.05), transparent 40%);
        }
        .hero-content {
            flex: 1;
        }
        .hero-image {
            flex: 0 0 380px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-card);
        }
        .hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 1.5rem;
        }
        .hero-metric {
            display: flex;
            flex-direction: column;
            background: rgba(28, 28, 30, 0.8);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 0.75rem 1.2rem;
            min-width: 120px;
        }
        .hero-metric-value {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent-gold);
        }
        .hero-metric-label {
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        /* ===== Steps / Lists ===== */
        .step {
            display: flex;
            gap: 1.2rem;
            margin-bottom: 1.5rem;
            align-items: flex-start;
        }
        .step-number {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            color: #121212;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
        }
        .step-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }
        .step-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            background: var(--bg-secondary);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            cursor: pointer;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: rgba(197, 160, 89, 0.05);
        }
        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--accent-gold);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 1.5rem;
        }
        .faq-answer-inner {
            padding-bottom: 1.2rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        /* ===== Form ===== */
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 0.4rem;
        }
        .form-input {
            width: 100%;
            padding: 0.75rem 1rem;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 0.95rem;
            transition: border-color var(--transition-fast);
        }
        .form-input:focus {
            border-color: var(--accent-gold);
            outline: none;
        }
        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1C1C1E, #242426);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(197, 160, 89, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.4rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            animation: fabFloat 3s ease-in-out infinite;
        }
        .fab:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 26px rgba(197, 160, 89, 0.5);
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        .fab::after {
            content: '';
            position: absolute;
            top: 4px;
            right: 4px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #FF4D4D;
            animation: blink 1.5s ease-in-out infinite;
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-gold);
            padding: 3rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-brand .logo {
            margin-bottom: 1rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1rem;
        }
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.35rem 1rem;
            font-size: 0.75rem;
            border-radius: 9999px;
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
        }
        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        .footer-col-list {
            list-style: none;
            padding: 0;
        }
        .footer-col-list li {
            margin-bottom: 0.6rem;
        }
        .footer-col-list a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-col-list a:hover {
            color: var(--accent-gold);
        }
        .footer-col-list i {
            font-size: 0.7rem;
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-gold);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-category {
                flex-direction: column;
                text-align: center;
            }
            .hero-image {
                flex: 0 0 auto;
                max-width: 100%;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(18, 18, 18, 0.98);
                border-bottom: 1px solid var(--border-gold);
                padding: 1rem;
                gap: 0.5rem;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                justify-content: center;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-actions .btn-login {
                display: none;
            }
            .hero-category {
                padding: 2rem 0 3rem;
            }
            .hero-metrics {
                justify-content: center;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .hero-metric {
                min-width: 100px;
                padding: 0.5rem 0.8rem;
            }
            .hero-metric-value {
                font-size: 1.1rem;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #121212;
            --bg-secondary: #1C1C1E;
            --bg-tertiary: #242426;
            --accent-bronze: #C5A059;
            --accent-gold: #FFBF00;
            --accent-muted-gold: #D4AC0D;
            --text-primary: #F5F5F7;
            --text-secondary: #D1CFC7;
            --text-muted: #A8A69E;
            --border-gold: rgba(197, 160, 89, 0.35);
            --border-gold-hover: rgba(197, 160, 89, 0.65);
            --radius-lg: 1rem;
            --radius-md: 0.75rem;
            --radius-sm: 0.5rem;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(197, 160, 89, 0.2);
            --transition-fast: 180ms ease;
            --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', 'Inter', -apple-system, Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-w: 1200px;
            --gutter: 1.5rem;
            --header-h: 64px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-gold);
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: 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;
        }
        .container {
            max-width: var(--max-w);
            margin: 0 auto;
            padding-left: var(--gutter);
            padding-right: var(--gutter);
        }
        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            height: var(--header-h);
            display: flex;
            align-items: center;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(18, 18, 18, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            line-height: 1.25;
            max-width: 260px;
            letter-spacing: 0.01em;
        }
        .logo-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #121212;
            font-weight: 800;
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-text .brand-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .logo-text .brand-tagline {
            font-size: 0.68rem;
            color: var(--text-muted);
            font-weight: 400;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex: 1;
            justify-content: center;
        }
        .nav-links a {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0.9rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
        }
        .nav-links a.active {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.12);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .btn-login {
            padding: 0.5rem 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .btn-login:hover {
            color: var(--accent-gold);
            background: rgba(197, 160, 89, 0.08);
        }
        .btn-signup {
            padding: 0.5rem 1.25rem;
            font-size: 0.85rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            box-shadow: 0 2px 12px rgba(197, 160, 89, 0.3);
        }
        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(197, 160, 89, 0.45);
            color: #121212;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.25rem;
            color: var(--text-primary);
            padding: 0.5rem;
            border-radius: var(--radius-sm);
        }
        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: calc(var(--header-h) + 3rem) 0 4rem;
            background: linear-gradient(135deg, rgba(28,28,30,0.97), rgba(18,18,18,0.98)), url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            border-bottom: 1px solid var(--border-gold);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(197,160,89,0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 3rem;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.35rem 0.9rem;
            background: rgba(197, 160, 89, 0.15);
            border: 1px solid var(--border-gold);
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 1.25rem;
        }
        .hero-badge i {
            font-size: 0.7rem;
        }
        .hero h1 {
            font-size: 2.75rem;
            line-height: 1.2;
            font-weight: 800;
            margin-bottom: 1.25rem;
            letter-spacing: -0.01em;
            color: var(--text-primary);
        }
        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            max-width: 600px;
            line-height: 1.7;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2.5rem;
        }
        .btn-primary {
            padding: 0.75rem 1.75rem;
            font-size: 0.95rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(197, 160, 89, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(197, 160, 89, 0.45);
            color: #121212;
        }
        .btn-secondary {
            padding: 0.75rem 1.75rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-secondary:hover {
            background: rgba(197, 160, 89, 0.12);
            border-color: var(--border-gold-hover);
            color: var(--accent-gold);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
        }
        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-visual-card {
            background: rgba(28,28,30,0.8);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2rem;
            width: 100%;
            max-width: 360px;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
        }
        .hero-visual-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--accent-gold);
        }
        .progress-ring {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        .ring {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: conic-gradient(var(--accent-gold) 0% 85%, rgba(197,160,89,0.15) 85% 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: var(--accent-gold);
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .ring-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .ring-label strong {
            color: var(--text-primary);
            display: block;
            font-size: 1.1rem;
        }
        .tier-preview {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .tier-preview li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.75rem 0.9rem;
            background: rgba(255,255,255,0.03);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(197,160,89,0.15);
            font-size: 0.85rem;
        }
        .tier-preview .tier-name {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .tier-preview .tier-value {
            color: var(--accent-gold);
            font-weight: 700;
        }
        /* ===== Sections General ===== */
        .section {
            padding: 4rem 0;
        }
        .section-alt {
            background-color: var(--bg-secondary);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 700px;
            line-height: 1.6;
            margin-bottom: 2.5rem;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2rem;
        }
        .card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            transition: all var(--transition-smooth);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
            border-color: var(--border-gold-hover);
        }
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(197,160,89,0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--accent-gold);
            margin-bottom: 1.25rem;
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
        }
        .card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 1rem;
        }
        .card .card-link {
            font-weight: 600;
            color: var(--accent-gold);
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }
        .card .card-link i {
            transition: transform var(--transition-fast);
        }
        .card .card-link:hover i {
            transform: translateX(3px);
        }
        .badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            font-size: 0.7rem;
            font-weight: 700;
            background: rgba(197,160,89,0.15);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        /* ===== Metrics ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .metric-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: left;
            position: relative;
            overflow: hidden;
        }
        .metric-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-bronze), var(--accent-gold));
            opacity: 0.5;
        }
        .metric-number {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
            margin-bottom: 0.5rem;
        }
        .metric-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        /* ===== Comparison ===== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: start;
        }
        .comparison-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2rem;
        }
        .comparison-card.before {
            border-color: rgba(160,160,160,0.25);
            background: rgba(28,28,30,0.5);
        }
        .comparison-card.after {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
        }
        .comparison-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .comparison-card h3 i {
            color: var(--accent-gold);
        }
        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .comparison-list li i {
            flex-shrink: 0;
            margin-top: 3px;
        }
        .comparison-list li i.fa-times-circle {
            color: #ff6b6b;
        }
        .comparison-list li i.fa-check-circle {
            color: var(--accent-gold);
        }
        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            counter-reset: step;
        }
        .step-item {
            position: relative;
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            padding-top: 2rem;
        }
        .step-number {
            position: absolute;
            top: -12px;
            left: 1.5rem;
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            color: #121212;
            font-weight: 800;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            box-shadow: 0 4px 12px rgba(197,160,89,0.4);
        }
        .step-item h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }
        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 800px;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-item.active {
            border-color: var(--border-gold-hover);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            background: none;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1rem;
            text-align: left;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--accent-gold);
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 1.5rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 1.5rem;
            padding-top: 0;
        }
        /* ===== CTA Form ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(28,28,30,0.95), rgba(18,18,18,0.98)), url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }
        .cta-box {
            background: rgba(28,28,30,0.85);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: center;
        }
        .cta-content h2 {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
        .cta-content p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }
        .cta-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .cta-list li {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .cta-list i {
            color: var(--accent-gold);
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-group label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
        }
        .form-group input, .form-group select, .form-group textarea {
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-sm);
            padding: 0.75rem 1rem;
            color: var(--text-primary);
            font-size: 0.9rem;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }
        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            outline: none;
            border-color: var(--accent-gold);
            background: rgba(255,255,255,0.05);
        }
        .form-submit {
            padding: 0.75rem 1.5rem;
            font-size: 0.95rem;
            font-weight: 700;
            color: #121212;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(197,160,89,0.3);
            align-self: flex-start;
        }
        .form-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(197,160,89,0.45);
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-gold);
            padding: 4rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-brand .logo {
            margin-bottom: 1rem;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1rem;
        }
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--accent-gold);
            background: rgba(197,160,89,0.1);
            border: 1px solid var(--border-gold);
            padding: 0.4rem 0.8rem;
            border-radius: 999px;
        }
        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        .footer-col-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .footer-col-list a {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: color var(--transition-fast), padding-left var(--transition-fast);
        }
        .footer-col-list a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }
        .footer-col-list i {
            font-size: 0.7rem;
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid rgba(197,160,89,0.2);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        /* ===== FAB ===== */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(18,18,18,0.8);
            backdrop-filter: blur(8px);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.5rem;
            box-shadow: 0 4px 20px rgba(197,160,89,0.3);
            transition: all var(--transition-smooth);
            animation: float 3s ease-in-out infinite;
        }
        .fab-support:hover {
            transform: scale(1.15) rotate(360deg);
            opacity: 1;
            box-shadow: 0 8px 30px rgba(197,160,89,0.5);
        }
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero h1 { font-size: 2.25rem; }
            .grid-3, .grid-2, .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .metrics-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            :root { --header-h: 60px; }
            .nav-links {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(18,18,18,0.98);
                flex-direction: column;
                padding: 1rem;
                gap: 0.25rem;
                border-bottom: 1px solid var(--border-gold);
                transform: translateY(-110%);
                transition: transform var(--transition-smooth);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .nav-links a {
                width: 100%;
                justify-content: flex-start;
                padding: 0.75rem 1rem;
            }
            .nav-actions {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .hero { padding-top: calc(var(--header-h) + 2rem); padding-bottom: 3rem; }
            .hero h1 { font-size: 1.85rem; }
            .hero-subtitle { font-size: 1rem; }
            .section-title { font-size: 1.6rem; }
            .grid-3, .grid-2, .steps-grid, .comparison-grid, .metrics-grid, .cta-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid { grid-template-columns: 1fr; }
            .cta-box { padding: 1.5rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.6rem; }
            .btn-primary, .btn-secondary { padding: 0.6rem 1.2rem; font-size: 0.85rem; }
            .logo-text .brand-name { max-width: 150px; }
        }