/* roulang page: index */
/* ============ DESIGN VARIABLES ============ */
        :root {
            --primary-bg: #0D0D0F;
            --secondary-bg: #121216;
            --tertiary-bg: #1A1A1E;
            --card-bg: #17171B;
            --border-subtle: rgba(255, 215, 0, 0.10);
            --border-strong: rgba(255, 215, 0, 0.25);
            --accent-gold: #FFD700;
            --accent-amber: #FFBF00;
            --accent-bronze: #C5A059;
            --accent-red: #D32F2F;
            --accent-green: #2E7D32;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --text-primary: #F5F5F7;
            --text-secondary: #D1D1D6;
            --text-muted: #8E8E93;
            --text-placeholder: #6E6E73;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 24px rgba(255,215,0,0.12);
            --shadow-gold-hover: 0 8px 40px rgba(255,215,0,0.22);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --font-primary: 'Segoe UI', 'Inter', 'Roboto', 'Helvetica Neue', Arial, -apple-system, sans-serif;
            --font-serif: 'Georgia', 'Times New Roman', serif;
            --line-height-body: 1.6;
            --line-height-heading: 1.3;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-medium: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ============ RESET & BASE ============ */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-primary);
            font-size: 1rem;
            line-height: var(--line-height-body);
            color: var(--text-primary);
            background-color: var(--primary-bg);
            background-image: 
                radial-gradient(ellipse at 50% 0%, rgba(197, 160, 89, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 30%, rgba(255, 215, 0, 0.03) 0%, transparent 50%),
                radial-gradient(ellipse at 20% 70%, rgba(46, 125, 50, 0.04) 0%, transparent 45%);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

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

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

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

        button {
            font-family: inherit;
            font-size: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
            transition: all var(--transition-fast);
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            color: var(--text-primary);
        }

        ul, ol {
            list-style: none;
        }

        /* ============ CONTAINER ============ */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: var(--spacing-lg);
            padding-right: var(--spacing-lg);
        }

        .container-wide {
            width: 100%;
            max-width: 1360px;
            margin: 0 auto;
            padding-left: var(--spacing-lg);
            padding-right: var(--spacing-lg);
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 13, 15, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding-top: var(--spacing-sm);
            padding-bottom: var(--spacing-sm);
            min-height: 68px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
            max-width: 320px;
        }

        .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            color: #1A1A1E;
            flex-shrink: 0;
        }

        .nav-logo .logo-text {
            font-size: 0.82rem;
            font-weight: 600;
            line-height: 1.25;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .nav-logo .logo-text span {
            color: var(--accent-gold);
        }

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

        .nav-logo:hover .logo-icon {
            box-shadow: var(--shadow-gold);
            transform: scale(1.05);
        }

        .nav-links-wrapper {
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            flex: 1;
            justify-content: center;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
        }

        .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--accent-gold);
            transform: scaleX(0);
            transform-origin: center;
            transition: transform var(--transition-medium);
            border-radius: 2px;
        }

        .nav-link:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .nav-link.active {
            color: var(--accent-gold);
            font-weight: 600;
        }

        .nav-link.active::after {
            transform: scaleX(1);
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }

        .btn-login {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-primary);
            padding: 8px 18px;
            border-radius: var(--radius-full);
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .btn-signup {
            font-size: 0.88rem;
            font-weight: 700;
            color: #1A1A1E;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            padding: 8px 22px;
            border-radius: var(--radius-full);
            box-shadow: 0 2px 8px rgba(255, 215, 0, 0.3);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-gold-hover);
            background: linear-gradient(135deg, #FFD700, #FFC400);
        }

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

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: rgba(255, 215, 0, 0.08);
        }

        .mobile-toggle .bar {
            width: 24px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-toggle.open .bar:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .mobile-toggle.open .bar:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .mobile-toggle.open .bar:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(13, 13, 15, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-lg);
            padding: var(--spacing-md) var(--spacing-lg);
            z-index: 99;
        }

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

        .mobile-menu .nav-link {
            display: block;
            padding: 12px 0;
            font-size: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .mobile-menu .nav-link:last-child {
            border-bottom: none;
        }

        .mobile-menu .nav-link::after {
            display: none;
        }

        /* ============ HERO ============ */
        .hero-section {
            position: relative;
            padding: var(--spacing-2xl) 0 var(--spacing-2xl);
            overflow: hidden;
            background: 
                linear-gradient(135deg, rgba(13, 13, 15, 0.92) 0%, rgba(18, 18, 22, 0.85) 100%),
                url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            border-bottom: 1px solid var(--border-subtle);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -30%;
            left: -10%;
            width: 60%;
            height: 160%;
            background: radial-gradient(ellipse, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -20%;
            right: -5%;
            width: 55%;
            height: 140%;
            background: radial-gradient(ellipse, rgba(197, 160, 89, 0.07) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: var(--spacing-2xl);
            position: relative;
            z-index: 1;
            align-items: center;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-full);
            padding: 6px 14px;
            margin-bottom: var(--spacing-md);
        }

        .hero-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        .hero-content h1 {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: var(--spacing-md);
            color: #FFFFFF;
            letter-spacing: -0.01em;
        }

        .hero-content h1 .highlight {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 800;
        }

        .hero-content .hero-desc {
            font-size: 0.98rem;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-lg);
            max-width: 520px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.95rem;
            font-weight: 700;
            color: #1A1A1E;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            padding: 14px 32px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-hero-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-hover);
            background: linear-gradient(135deg, #FFD700, #FFC400);
        }

        .btn-hero-primary:active {
            transform: translateY(1px);
            box-shadow: var(--shadow-sm);
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--accent-gold);
            background: transparent;
            padding: 13px 28px;
            border-radius: var(--radius-full);
            border: 1.5px solid rgba(255, 215, 0, 0.35);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .hero-kpi {
            display: flex;
            gap: var(--spacing-xl);
            flex-wrap: wrap;
            align-items: center;
        }

        .hero-kpi .kpi-item {
            display: flex;
            flex-direction: column;
        }

        .hero-kpi .kpi-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }

        .hero-kpi .kpi-label {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

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

        .hero-visual .hero-image-wrapper {
            position: relative;
            width: 100%;
            max-width: 520px;
            aspect-ratio: 5/7;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg), 0 0 0 1px var(--border-strong);
            transform: rotate(2deg);
            transition: transform var(--transition-medium), box-shadow var(--transition-medium);
        }

        .hero-visual .hero-image-wrapper:hover {
            transform: rotate(0deg) scale(1.02);
            box-shadow: var(--shadow-lg), 0 0 0 1px var(--accent-gold), var(--shadow-gold-hover);
        }

        .hero-visual .hero-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-visual .hero-image-wrapper::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 13, 15, 0.15) 0%, rgba(0,0,0,0.4) 100%);
            border-radius: inherit;
            pointer-events: none;
        }

        .hero-visual .hero-image-badge {
            position: absolute;
            bottom: 20px;
            right: -10px;
            background: rgba(13, 13, 15, 0.92);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            box-shadow: var(--shadow-md);
            z-index: 2;
            min-width: 140px;
        }

        .hero-visual .hero-image-badge .badge-row {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .hero-visual .hero-image-badge .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: pulse-dot 1.5s infinite;
        }

        .hero-visual .hero-image-badge .badge-text {
            font-size: 0.78rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ============ SECTION COMMON STYLES ============ */
        .section {
            padding: var(--spacing-3xl) 0;
        }

        .section-alt {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-header {
            margin-bottom: var(--spacing-2xl);
            text-align: left;
        }

        .section-header .section-tag {
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-sm);
            display: inline-block;
        }

        .section-header h2 {
            font-size: 1.7rem;
            font-weight: 700;
            line-height: 1.3;
            color: #FFFFFF;
            margin-bottom: var(--spacing-sm);
        }

        .section-header p {
            font-size: 0.92rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.65;
        }

        /* ============ FEATURED CATEGORIES ============ */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-medium);
            display: flex;
            flex-direction: column;
            min-height: 240px;
        }

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

        .category-card .cat-image {
            width: 100%;
            height: 170px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .category-card:hover .cat-image {
            transform: scale(1.05);
        }

        .category-card .cat-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(13,13,15,0.1) 0%, rgba(13,13,15,0.85) 55%, rgba(13,13,15,0.95) 100%);
            pointer-events: none;
        }

        .category-card .cat-body {
            position: relative;
            z-index: 1;
            padding: var(--spacing-lg);
            margin-top: -60px;
        }

        .category-card .cat-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: var(--spacing-xs);
            line-height: 1.3;
        }

        .category-card .cat-body p {
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: var(--spacing-sm);
        }

        .category-card .cat-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-gold);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }

        .category-card:hover .cat-link {
            gap: 8px;
        }

        /* ============ BENEFITS GRID (券面网格) ============ */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .benefit-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            transition: all var(--transition-medium);
            text-align: left;
            position: relative;
            overflow: hidden;
        }

        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber), transparent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-medium);
        }

        .benefit-card:hover::before {
            transform: scaleX(1);
        }

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

        .benefit-card .benefit-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-strong);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: var(--spacing-md);
            transition: all var(--transition-fast);
        }

        .benefit-card:hover .benefit-icon {
            background: rgba(255, 215, 0, 0.2);
            box-shadow: var(--shadow-gold);
        }

        .benefit-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: var(--spacing-xs);
            line-height: 1.3;
        }

        .benefit-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ============ RANKING LIST ============ */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-md) var(--spacing-lg);
            transition: all var(--transition-fast);
        }

        .ranking-item:hover {
            border-color: var(--border-strong);
            background: rgba(255, 215, 0, 0.04);
            box-shadow: var(--shadow-md);
        }

        .ranking-item .rank-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            min-width: 50px;
            text-align: center;
            flex-shrink: 0;
        }

        .ranking-item .rank-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-item .rank-info h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 2px;
        }

        .ranking-item .rank-info p {
            font-size: 0.78rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .ranking-item .rank-stats {
            display: flex;
            gap: var(--spacing-md);
            flex-shrink: 0;
            align-items: center;
        }

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

        .ranking-item .rank-stat .stat-val {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent-amber);
            display: block;
        }

        .ranking-item .rank-stat .stat-lbl {
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        /* ============ ACTIVITY HIGHLIGHTS ============ */
        .activity-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .activity-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-medium);
            text-align: left;
        }

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

        .activity-card .act-img-wrap {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .activity-card .act-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .activity-card:hover .act-img-wrap img {
            transform: scale(1.06);
        }

        .activity-card .act-img-wrap .act-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(211, 47, 47, 0.92);
            color: #FFFFFF;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.03em;
            z-index: 1;
        }

        .activity-card .act-body {
            padding: var(--spacing-lg);
        }

        .activity-card .act-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: var(--spacing-xs);
            line-height: 1.3;
        }

        .activity-card .act-body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: var(--spacing-sm);
        }

        .activity-card .act-link {
            font-size: 0.84rem;
            font-weight: 600;
            color: var(--accent-gold);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ============ REVIEWS WALL ============ */
        .review-summary {
            display: flex;
            align-items: center;
            gap: var(--spacing-xl);
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            margin-bottom: var(--spacing-lg);
            flex-wrap: wrap;
        }

        .review-summary .rating-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1;
        }

        .review-summary .rating-stars {
            font-size: 1.2rem;
            letter-spacing: 2px;
            color: var(--accent-gold);
        }

        .review-summary .rating-text {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-top: var(--spacing-xs);
        }

        .review-summary .rating-breakdown {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
            min-width: 200px;
        }

        .review-summary .rating-bar-row {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .review-summary .rating-bar-label {
            font-size: 0.75rem;
            color: var(--text-muted);
            min-width: 28px;
            text-align: right;
        }

        .review-summary .rating-bar {
            flex: 1;
            height: 8px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-full);
            overflow: hidden;
        }

        .review-summary .rating-bar .rating-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
            border-radius: inherit;
            transition: width var(--transition-medium);
        }

        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .review-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            transition: all var(--transition-fast);
            text-align: left;
        }

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

        .review-card .review-header {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            margin-bottom: var(--spacing-sm);
        }

        .review-card .reviewer-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            color: #1A1A1E;
            flex-shrink: 0;
        }

        .review-card .reviewer-name {
            font-size: 0.82rem;
            font-weight: 600;
            color: #FFFFFF;
        }

        .review-card .reviewer-stars {
            font-size: 0.75rem;
            color: var(--accent-gold);
            letter-spacing: 1px;
        }

        .review-card .review-text {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ============ USAGE RULES ============ */
        .rules-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-2xl);
            align-items: start;
        }

        .rules-text {
            text-align: left;
        }

        .rules-text p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
        }

        .rules-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .rules-list .rule-item {
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-sm);
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .rules-list .rule-item:last-child {
            border-bottom: none;
        }

        .rules-list .rule-item .rule-icon {
            color: var(--accent-gold);
            font-weight: 700;
            flex-shrink: 0;
            font-size: 1rem;
            margin-top: 2px;
        }

        .rules-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-md);
        }

        .rules-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 300px;
        }

        /* ============ CMS POSTS (资讯) ============ */
        .posts-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: var(--spacing-2xl);
        }

        .posts-main-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .post-item {
            display: flex;
            gap: var(--spacing-md);
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: var(--spacing-md) var(--spacing-lg);
            transition: all var(--transition-fast);
            align-items: flex-start;
            text-align: left;
        }

        .post-item:hover {
            border-color: var(--border-strong);
            background: rgba(255, 215, 0, 0.04);
            box-shadow: var(--shadow-md);
        }

        .post-item .post-index {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--accent-gold);
            min-width: 36px;
            flex-shrink: 0;
            text-align: center;
            padding-top: 2px;
        }

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

        .post-item .post-content h3 {
            font-size: 0.92rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .post-item .post-content p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.55;
            margin-bottom: 4px;
        }

        .post-item .post-meta {
            font-size: 0.72rem;
            color: var(--text-placeholder);
        }

        .posts-sidebar {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            text-align: left;
            height: fit-content;
            position: sticky;
            top: 80px;
        }

        .posts-sidebar h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: var(--spacing-md);
            padding-bottom: var(--spacing-sm);
            border-bottom: 1px solid var(--border-subtle);
        }

        .posts-sidebar .sidebar-tip {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        .posts-sidebar .sidebar-tip ul {
            margin-top: var(--spacing-sm);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }

        .posts-sidebar .sidebar-tip ul li {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .posts-sidebar .sidebar-tip ul li::before {
            content: '•';
            color: var(--accent-gold);
            font-weight: 700;
        }

        .no-posts {
            text-align: left;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding: var(--spacing-xl);
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
        }

        /* ============ FINAL CTA ============ */
        .cta-section {
            padding: var(--spacing-3xl) 0;
            background: 
                linear-gradient(135deg, rgba(13,13,15,0.95) 0%, rgba(18,18,22,0.9) 100%),
                url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            text-align: center;
        }

        .cta-section .cta-inner {
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-section h2 {
            font-size: 1.7rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }

        .cta-section p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: var(--spacing-lg);
        }

        .cta-section .cta-buttons {
            display: flex;
            gap: var(--spacing-md);
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-3xl) 0 var(--spacing-lg);
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing-2xl);
            margin-bottom: var(--spacing-2xl);
        }

        .footer-brand {
            text-align: left;
        }

        .footer-brand .footer-logo-text {
            font-size: 0.95rem;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.3;
            margin-bottom: var(--spacing-sm);
        }

        .footer-brand .footer-logo-text span {
            color: var(--accent-gold);
        }

        .footer-brand p {
            font-size: 0.78rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.88rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: var(--spacing-md);
        }

        .footer-col .footer-links {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .footer-col .footer-links a {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

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

        .footer-bottom .copyright {
            font-size: 0.74rem;
            color: var(--text-placeholder);
        }

        .footer-bottom .footer-badges {
            display: flex;
            gap: var(--spacing-sm);
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-bottom .badge-18 {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(211, 47, 47, 0.15);
            border: 1px solid rgba(211, 47, 47, 0.4);
            border-radius: var(--radius-full);
            padding: 4px 12px;
            font-size: 0.7rem;
            font-weight: 700;
            color: #FF6B6B;
            letter-spacing: 0.05em;
        }

        .footer-bottom .badge-secure {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.7rem;
            color: var(--text-muted);
        }

        .footer-bottom .badge-secure .lock-icon {
            color: var(--accent-green);
        }

        .footer-payments {
            display: flex;
            gap: var(--spacing-xs);
            flex-wrap: wrap;
            margin-top: var(--spacing-sm);
        }

        .footer-payments .pay-badge {
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-sm);
            padding: 4px 10px;
            letter-spacing: 0.02em;
        }

        /* ============ FLOATING ACTION BUTTON (FAB) ============ */
        .fab-fixed {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            background: rgba(13, 13, 15, 0.65);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: 
                linear-gradient(rgba(13,13,15,0.75), rgba(13,13,15,0.75)),
                linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            border-radius: var(--radius-full);
            padding: 12px 18px;
            cursor: pointer;
            opacity: 0.6;
            transition: all var(--transition-fast);
            min-width: 56px;
            min-height: 52px;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4), 0 4px 16px rgba(0, 0, 0, 0.5);
            animation: fab-float 3s ease-in-out infinite;
        }

        .fab-fixed:hover {
            opacity: 1;
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.65), 0 0 50px rgba(204, 255, 0, 0.35), 0 8px 24px rgba(0, 0, 0, 0.6);
            transform: scale(1.05);
        }

        .fab-fixed:active {
            transform: scale(0.95);
            border-image: linear-gradient(135deg, var(--accent-lime), #FF007F) 1;
            animation: fab-flicker 0.3s ease-out;
        }

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

        @keyframes fab-flicker {
            0% { opacity: 0.4; }
            30% { opacity: 1; }
            60% { opacity: 0.5; }
            100% { opacity: 1; }
        }

        .fab-fixed .fab-icon {
            font-size: 1.4rem;
            color: var(--text-primary);
            text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
            flex-shrink: 0;
        }

        .fab-fixed .fab-text {
            font-size: 0.75rem;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .fab-fixed .fab-notify {
            position: absolute;
            top: -4px;
            right: -4px;
            background: #FF007F;
            color: #FFFFFF;
            font-size: 0.58rem;
            font-weight: 800;
            padding: 2px 6px;
            border-radius: var(--radius-full);
            letter-spacing: 0.05em;
            animation: notify-blink 1.8s infinite;
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.7);
        }

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

        /* ============ RESPONSIVE BREAKPOINTS ============ */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-xl);
            }

            .hero-content h1 {
                font-size: 1.6rem;
            }

            .hero-visual .hero-image-wrapper {
                max-width: 400px;
            }

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

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

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

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

            .posts-sidebar {
                position: static;
            }

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

            .nav-links-wrapper {
                gap: var(--spacing-sm);
            }

            .nav-link {
                font-size: 0.82rem;
                padding: 6px 8px;
            }
        }

        @media (max-width: 768px) {
            .container,
            .container-wide {
                padding-left: var(--spacing-md);
                padding-right: var(--spacing-md);
            }

            .header-inner {
                flex-wrap: nowrap;
                gap: var(--spacing-sm);
            }

            .nav-logo {
                max-width: 200px;
            }

            .nav-logo .logo-text {
                font-size: 0.72rem;
            }

            .nav-links-wrapper {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .nav-auth {
                gap: var(--spacing-xs);
            }

            .btn-login {
                padding: 7px 13px;
                font-size: 0.78rem;
            }

            .btn-signup {
                padding: 7px 15px;
                font-size: 0.78rem;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }

            .hero-content h1 {
                font-size: 1.4rem;
            }

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

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

            .hero-visual .hero-image-wrapper {
                max-width: 320px;
                aspect-ratio: 4/5;
            }

            .hero-visual .hero-image-badge {
                right: 0;
                bottom: 10px;
                padding: 10px 14px;
            }

            .section {
                padding: var(--spacing-2xl) 0;
            }

            .section-header h2 {
                font-size: 1.3rem;
            }

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

            .benefits-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }

            .benefit-card {
                padding: var(--spacing-md);
            }

            .benefit-card h3 {
                font-size: 0.9rem;
            }

            .ranking-item {
                flex-direction: column;
                align-items: flex-start;
                gap: var(--spacing-xs);
                padding: var(--spacing-md);
            }

            .ranking-item .rank-stats {
                width: 100%;
                justify-content: space-between;
                flex-wrap: wrap;
                gap: var(--spacing-sm);
            }

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

            .review-summary {
                flex-direction: column;
                align-items: flex-start;
                gap: var(--spacing-md);
                padding: var(--spacing-lg);
            }

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

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

            .rules-visual img {
                min-height: 200px;
            }

            .cta-section h2 {
                font-size: 1.3rem;
            }

            .cta-section .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn-hero-primary,
            .btn-hero-secondary {
                width: 100%;
                justify-content: center;
                padding: 13px 20px;
                font-size: 0.9rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: var(--spacing-sm);
            }

            .fab-fixed {
                left: 8px;
                bottom: 80px;
                padding: 10px 14px;
                min-width: 48px;
                min-height: 48px;
            }

            .fab-fixed .fab-text {
                display: none;
            }

            .hero-kpi {
                gap: var(--spacing-md);
            }

            .hero-kpi .kpi-value {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .benefits-grid {
                grid-template-columns: 1fr;
            }

            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 1rem;
            }

            .nav-logo .logo-text {
                font-size: 0.66rem;
            }

            .hero-content h1 {
                font-size: 1.2rem;
            }

            .section-header h2 {
                font-size: 1.15rem;
            }

            .category-card .cat-image {
                height: 140px;
            }

            .hero-visual .hero-image-wrapper {
                max-width: 260px;
            }

            .post-item {
                flex-direction: column;
                gap: var(--spacing-xs);
            }

            .post-item .post-index {
                font-size: 1rem;
                min-width: auto;
            }

            .review-summary .rating-number {
                font-size: 2.2rem;
            }
        }

/* roulang page: article */
:root {
            --primary-bg: #0D0D0F;
            --secondary-bg: #121216;
            --tertiary-bg: #1A1A1E;
            --card-bg: #17171B;
            --border-subtle: rgba(255, 215, 0, 0.10);
            --border-strong: rgba(255, 215, 0, 0.25);
            --accent-gold: #FFD700;
            --accent-amber: #FFBF00;
            --accent-bronze: #C5A059;
            --accent-red: #D32F2F;
            --accent-green: #2E7D32;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-purple: #7B2FFF;
            --accent-hotpink: #FF007F;
            --text-primary: #F5F5F7;
            --text-secondary: #D1D1D6;
            --text-muted: #8E8E93;
            --text-placeholder: #6E6E73;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 24px rgba(255,215,0,0.12);
            --shadow-gold-hover: 0 8px 40px rgba(255,215,0,0.22);
            --shadow-neon: 0 0 20px rgba(0,240,255,0.3);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --font-primary: 'Segoe UI', 'Inter', 'Roboto', 'Helvetica Neue', Arial, -apple-system, sans-serif;
            --font-serif: 'Georgia', 'Times New Roman', serif;
            --line-height-body: 1.65;
            --line-height-heading: 1.35;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-medium: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-primary);
            font-size: 1rem;
            line-height: var(--line-height-body);
            color: var(--text-primary);
            background-color: var(--primary-bg);
            background-image:
                radial-gradient(ellipse at 50% 0%, rgba(197, 160, 89, 0.07) 0%, transparent 60%),
                radial-gradient(ellipse at 85% 35%, rgba(255, 215, 0, 0.03) 0%, transparent 50%),
                radial-gradient(ellipse at 15% 75%, rgba(46, 125, 50, 0.04) 0%, transparent 45%);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

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

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

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

        button {
            font-family: inherit;
            font-size: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
            transition: all var(--transition-fast);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: var(--spacing-lg);
            padding-right: var(--spacing-lg);
        }

        .container-narrow {
            width: 100%;
            max-width: 820px;
            margin: 0 auto;
            padding-left: var(--spacing-lg);
            padding-right: var(--spacing-lg);
        }

        /* ============ HEADER & NAVIGATION ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 13, 15, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding-top: var(--spacing-sm);
            padding-bottom: var(--spacing-sm);
            min-height: 72px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
            max-width: 360px;
        }

        .nav-logo .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze) 0%, var(--accent-gold) 55%, var(--accent-amber) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
            color: #0D0D0F;
            flex-shrink: 0;
            box-shadow: 0 0 16px rgba(255, 215, 0, 0.35);
            letter-spacing: -0.5px;
        }

        .nav-logo .logo-text {
            font-size: 1.02rem;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-primary);
            letter-spacing: -0.2px;
        }

        .nav-logo .logo-text span {
            color: var(--accent-gold);
        }

        .nav-links-wrapper {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }

        .nav-link {
            padding: var(--spacing-sm) var(--spacing-md);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-full);
            white-space: nowrap;
            position: relative;
            transition: all var(--transition-fast);
        }

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

        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: var(--radius-full);
        }

        .nav-auth-buttons {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }

        .btn-login-text {
            padding: var(--spacing-sm) var(--spacing-md);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
        }

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

        .btn-signup-solid {
            padding: var(--spacing-sm) var(--spacing-lg);
            font-size: 0.9rem;
            font-weight: 700;
            color: #0D0D0F;
            background: linear-gradient(135deg, var(--accent-bronze) 0%, var(--accent-gold) 50%, var(--accent-amber) 100%);
            border-radius: var(--radius-full);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.25);
            transition: all var(--transition-fast);
            letter-spacing: 0.2px;
        }

        .btn-signup-solid:hover {
            box-shadow: 0 4px 24px rgba(255, 215, 0, 0.4);
            transform: translateY(-1px);
        }

        .btn-signup-solid:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 215, 0, 0.2);
        }

        .mobile-menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            border-color: var(--border-strong);
            background: var(--tertiary-bg);
        }

        .mobile-menu-toggle .bar {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            margin: 4px 0;
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* ============ ARTICLE BANNER ============ */
        .article-banner {
            position: relative;
            background-image: linear-gradient(135deg, rgba(13,13,15,0.92) 0%, rgba(18,18,22,0.88) 40%, rgba(26,26,30,0.85) 100%), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            border-bottom: 1px solid var(--border-subtle);
        }

        .article-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-gold) 30%, var(--accent-gold) 70%, transparent);
            opacity: 0.6;
        }

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

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .sep {
            color: var(--accent-gold);
            font-weight: 700;
        }

        .breadcrumb .current {
            color: var(--accent-gold);
            font-weight: 600;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-banner h1 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            line-height: var(--line-height-heading);
            color: var(--text-primary);
            letter-spacing: -0.4px;
            margin-bottom: var(--spacing-lg);
            max-width: 800px;
        }

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

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }

        .article-meta .meta-icon {
            color: var(--accent-gold);
            font-size: 1.1rem;
        }

        .article-category-tag {
            display: inline-block;
            padding: var(--spacing-xs) var(--spacing-md);
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-strong);
        }

        /* ============ ARTICLE CONTENT ============ */
        .article-main {
            padding: var(--spacing-3xl) 0;
            flex: 1;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-2xl);
        }

        .article-content-wrapper {
            max-width: 820px;
            margin: 0 auto;
            width: 100%;
        }

        .article-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: var(--spacing-2xl);
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-gold);
        }

        .article-cover img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .article-cover:hover img {
            transform: scale(1.02);
        }

        .article-body {
            font-size: 1.06rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .article-body p {
            margin-bottom: var(--spacing-lg);
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: var(--spacing-2xl);
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.2px;
            line-height: var(--line-height-heading);
        }

        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-top: var(--spacing-xl);
            margin-bottom: var(--spacing-sm);
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: var(--spacing-lg);
            padding-left: var(--spacing-xl);
            color: var(--text-secondary);
        }

        .article-body li {
            margin-bottom: var(--spacing-sm);
        }

        .article-body strong {
            color: var(--accent-gold);
            font-weight: 600;
        }

        .article-body blockquote {
            border-left: 3px solid var(--accent-gold);
            padding: var(--spacing-md) var(--spacing-lg);
            margin: var(--spacing-xl) 0;
            background: rgba(255, 215, 0, 0.04);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-not-found {
            text-align: center;
            padding: var(--spacing-3xl) 0;
            color: var(--text-muted);
        }

        .article-not-found h2 {
            font-size: 1.5rem;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
        }

        .article-not-found p {
            margin-bottom: var(--spacing-lg);
        }

        .btn-back-home {
            display: inline-block;
            padding: var(--spacing-md) var(--spacing-xl);
            background: linear-gradient(135deg, var(--accent-bronze) 0%, var(--accent-gold) 50%, var(--accent-amber) 100%);
            color: #0D0D0F;
            font-weight: 700;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.25);
        }

        .btn-back-home:hover {
            box-shadow: 0 4px 24px rgba(255, 215, 0, 0.4);
            transform: translateY(-1px);
        }

        /* ============ RELATED SECTION ============ */
        .related-section {
            padding: var(--spacing-2xl) 0;
            border-top: 1px solid var(--border-subtle);
            background: var(--secondary-bg);
        }

        .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-xl);
            flex-wrap: wrap;
        }

        .section-heading h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            line-height: var(--line-height-heading);
        }

        .section-heading h2 span {
            color: var(--accent-gold);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

        .related-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-medium);
            cursor: pointer;
        }

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

        .related-card .related-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--tertiary-bg);
        }

        .related-card .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-medium);
        }

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

        .related-card .related-body {
            padding: var(--spacing-lg);
        }

        .related-card .related-tag {
            display: inline-block;
            padding: var(--spacing-xs) var(--spacing-sm);
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            margin-bottom: var(--spacing-sm);
        }

        .related-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.2px;
        }

        .related-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.55;
        }

        /* ============ FAQ SECTION ============ */
        .faq-section {
            padding: var(--spacing-3xl) 0;
            background: var(--primary-bg);
        }

        .faq-section .section-heading {
            text-align: left;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            max-width: 820px;
            margin: 0 auto;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding: var(--spacing-lg);
            cursor: pointer;
            width: 100%;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.2rem;
            font-weight: 700;
            transition: all var(--transition-fast);
        }

        .faq-answer {
            padding: 0 var(--spacing-lg) var(--spacing-lg);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
            display: none;
        }

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

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(255, 215, 0, 0.2);
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            padding: var(--spacing-3xl) 0;
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            text-align: center;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--tertiary-bg) 0%, var(--card-bg) 50%, var(--tertiary-bg) 100%);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-xl);
            padding: var(--spacing-2xl) var(--spacing-xl);
            max-width: 700px;
            margin: 0 auto;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-gold);
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at center, rgba(255, 215, 0, 0.06) 0%, transparent 60%);
            pointer-events: none;
            animation: ctaGlow 6s ease-in-out infinite;
        }

        @keyframes ctaGlow {
            0%, 100% { transform: translate(0, 0); }
            50% { transform: translate(5%, 3%); }
        }

        .cta-box h2 {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            margin-bottom: var(--spacing-md);
            position: relative;
            z-index: 1;
        }

        .cta-box p {
            color: var(--text-secondary);
            margin-bottom: var(--spacing-xl);
            font-size: 1.05rem;
            position: relative;
            z-index: 1;
        }

        .cta-buttons {
            display: flex;
            gap: var(--spacing-md);
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-primary-gold {
            padding: var(--spacing-md) var(--spacing-xl);
            background: linear-gradient(135deg, var(--accent-bronze) 0%, var(--accent-gold) 50%, var(--accent-amber) 100%);
            color: #0D0D0F;
            font-weight: 700;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 16px rgba(255, 215, 0, 0.3);
            transition: all var(--transition-fast);
        }

        .btn-primary-gold:hover {
            box-shadow: 0 6px 32px rgba(255, 215, 0, 0.45);
            transform: translateY(-2px);
        }

        .btn-primary-gold:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.2);
        }

        .btn-outline-gold {
            padding: var(--spacing-md) var(--spacing-xl);
            background: transparent;
            color: var(--accent-gold);
            font-weight: 600;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            border: 1.5px solid var(--border-strong);
            transition: all var(--transition-fast);
        }

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

        /* ============ FAB ============ */
        .fab-cyber {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-full);
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            position: relative;
            cursor: pointer;
            transition: all var(--transition-medium);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.25);
            animation: fabFloat 3.5s ease-in-out infinite;
        }

        .fab-cyber::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan), var(--accent-purple), var(--accent-hotpink));
            z-index: -1;
            background-size: 300% 300%;
            animation: gradientBorder 4s ease-in-out infinite;
            opacity: 0.8;
        }

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

        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); opacity: 0.65; }
            50% { transform: translateY(-6px); opacity: 0.85; }
        }

        .fab-cyber:hover {
            opacity: 1;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.5);
            transform: translateY(-2px);
        }

        .fab-cyber:active {
            transform: scale(0.94);
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.5);
        }

        .fab-cyber .fab-icon {
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            filter: drop-shadow(0 0 6px rgba(0, 240, 255, 0.6));
            animation: iconFlicker 5s ease-in-out infinite;
            pointer-events: none;
        }

        @keyframes iconFlicker {
            0%, 100% { opacity: 1; }
            3% { opacity: 0.7; }
            6% { opacity: 1; }
            7% { opacity: 0.8; }
            8% { opacity: 1; }
        }

        .fab-cyber .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-hotpink);
            box-shadow: 0 0 8px rgba(255, 0, 127, 0.7);
            animation: notifPulse 2s ease-in-out infinite;
        }

        @keyframes notifPulse {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.3); opacity: 0.6; }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing-2xl);
            margin-bottom: var(--spacing-2xl);
        }

        .footer-brand .footer-logo-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.2px;
        }

        .footer-brand .footer-logo-text span {
            color: var(--accent-gold);
        }

        .footer-brand p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: var(--spacing-lg);
        }

        .footer-payments {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .pay-badge {
            padding: var(--spacing-xs) var(--spacing-md);
            background: var(--tertiary-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }

        .pay-badge:hover {
            border-color: var(--border-strong);
            color: var(--accent-gold);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .footer-links a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

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

        .copyright {
            font-size: 0.85rem;
            color: var(--text-placeholder);
        }

        .footer-badges {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            align-items: center;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent-red);
            color: #fff;
            font-weight: 800;
            font-size: 0.8rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        .badge-secure {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-size: 0.8rem;
            color: var(--text-secondary);
            padding: var(--spacing-xs) var(--spacing-md);
            background: var(--tertiary-bg);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
        }

        .lock-icon {
            font-size: 0.85rem;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr;
                gap: var(--spacing-xl);
            }
            .footer-col:last-child {
                grid-column: span 2;
            }
        }

        @media (max-width: 768px) {
            .nav-logo {
                max-width: 260px;
            }
            .nav-logo .logo-text {
                font-size: 0.87rem;
            }
            .nav-links-wrapper {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(13, 13, 15, 0.98);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-subtle);
                padding: var(--spacing-md) var(--spacing-lg);
                flex-direction: column;
                z-index: 99;
                gap: var(--spacing-sm);
                box-shadow: var(--shadow-lg);
            }
            .nav-links-wrapper.open {
                display: flex;
            }
            .nav-links {
                flex-direction: column;
                width: 100%;
                gap: var(--spacing-xs);
            }
            .nav-link {
                width: 100%;
                text-align: left;
                font-size: 1rem;
                padding: var(--spacing-md);
            }
            .nav-auth-buttons {
                width: 100%;
                justify-content: space-between;
                gap: var(--spacing-sm);
            }
            .btn-login-text,
            .btn-signup-solid {
                flex: 1;
                text-align: center;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .article-banner {
                padding: var(--spacing-2xl) 0 var(--spacing-xl);
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .footer-col:last-child {
                grid-column: span 1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: var(--spacing-md);
            }
            .cta-box {
                padding: var(--spacing-xl) var(--spacing-lg);
            }
            .cta-box h2 {
                font-size: 1.4rem;
            }
            .section-heading h2 {
                font-size: 1.4rem;
            }
            .fab-cyber {
                width: 50px;
                height: 50px;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .container,
            .container-narrow {
                padding-left: var(--spacing-md);
                padding-right: var(--spacing-md);
            }
            .nav-logo .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .nav-logo .logo-text {
                font-size: 0.78rem;
                max-width: 160px;
            }
            .article-banner h1 {
                font-size: 1.5rem;
            }
            .article-meta {
                gap: var(--spacing-md);
                font-size: 0.8rem;
            }
            .article-body {
                font-size: 0.98rem;
            }
            .related-card .related-body {
                padding: var(--spacing-md);
            }
            .faq-question {
                font-size: 0.92rem;
                padding: var(--spacing-md);
            }
            .faq-answer {
                padding: 0 var(--spacing-md) var(--spacing-md);
                font-size: 0.88rem;
            }
            .cta-buttons {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .btn-primary-gold,
            .btn-outline-gold {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0D0D0F;
            --secondary-bg: #121216;
            --tertiary-bg: #1A1A1E;
            --card-bg: #17171B;
            --border-subtle: rgba(255, 215, 0, 0.10);
            --border-strong: rgba(255, 215, 0, 0.25);
            --accent-gold: #FFD700;
            --accent-amber: #FFBF00;
            --accent-bronze: #C5A059;
            --accent-red: #D32F2F;
            --accent-green: #2E7D32;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --text-primary: #F5F5F7;
            --text-secondary: #D1D1D6;
            --text-muted: #8E8E93;
            --text-placeholder: #6E6E73;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 24px rgba(255,215,0,0.12);
            --shadow-gold-hover: 0 8px 40px rgba(255,215,0,0.22);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --font-primary: 'Segoe UI', 'Inter', 'Roboto', 'Helvetica Neue', Arial, -apple-system, sans-serif;
            --font-serif: 'Georgia', 'Times New Roman', serif;
            --line-height-body: 1.6;
            --line-height-heading: 1.3;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-medium: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-primary);
            font-size: 1rem;
            line-height: var(--line-height-body);
            color: var(--text-primary);
            background-color: var(--primary-bg);
            background-image: 
                radial-gradient(ellipse at 50% 0%, rgba(197, 160, 89, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 30%, rgba(255, 215, 0, 0.03) 0%, transparent 50%),
                radial-gradient(ellipse at 20% 70%, rgba(46, 125, 50, 0.04) 0%, transparent 45%);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

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

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

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

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

        button {
            font-family: inherit;
            font-size: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
            transition: all var(--transition-fast);
        }

        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            color: var(--text-primary);
            background: var(--tertiary-bg);
            padding: 10px 14px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            width: 100%;
        }

        input::placeholder {
            color: var(--text-placeholder);
        }

        input:focus {
            outline: none;
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 3px rgba(255,215,0,0.1);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: var(--spacing-lg);
            padding-right: var(--spacing-lg);
        }

        .container-wide {
            width: 100%;
            max-width: 1360px;
            margin: 0 auto;
            padding-left: var(--spacing-lg);
            padding-right: var(--spacing-lg);
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 13, 15, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding-top: var(--spacing-sm);
            padding-bottom: var(--spacing-sm);
            min-height: 68px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
            max-width: 340px;
            font-weight: 700;
            font-size: 1.1rem;
            line-height: 1.2;
            color: var(--text-primary);
        }

        .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0D0D0F;
            font-size: 1.2rem;
            font-weight: 700;
            flex-shrink: 0;
            box-shadow: var(--shadow-gold);
        }

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

        .nav-logo .logo-sub {
            font-size: 0.7rem;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .nav-links-wrapper {
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
        }

        .nav-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: var(--spacing-sm) 0;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            transition: width var(--transition-medium);
        }

        .nav-link:hover {
            color: var(--text-primary);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--accent-gold);
            font-weight: 600;
        }

        .nav-link.active::after {
            width: 100%;
        }

        .nav-auth-buttons {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
        }

        .btn-login {
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid transparent;
        }

        .btn-login:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.05);
        }

        .btn-signup {
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            color: #0D0D0F;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            box-shadow: var(--shadow-gold);
        }

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

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

        /* Hero Section */
        .page-hero {
            position: relative;
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            background: linear-gradient(180deg, rgba(18,18,22,0.8) 0%, rgba(13,13,15,0.95) 100%);
            border-bottom: 1px solid var(--border-subtle);
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }

        .page-hero-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }

        .hero-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: rgba(255,215,0,0.1);
            border: 1px solid var(--border-strong);
            color: var(--accent-gold);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            margin-bottom: var(--spacing-md);
        }

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: var(--spacing-md);
            color: var(--text-primary);
        }

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

        .page-hero p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-lg);
            max-width: 700px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            min-width: 120px;
        }

        .hero-stat-value {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1.2;
        }

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

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-md);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            font-weight: 600;
            color: #0D0D0F;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-medium);
        }

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

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

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--border-strong);
            transition: all var(--transition-medium);
        }

        .btn-secondary:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--accent-gold);
        }

        /* Sections */
        .section {
            padding: var(--spacing-3xl) 0;
        }

        .section-alt {
            background-color: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-header {
            margin-bottom: var(--spacing-2xl);
            max-width: 800px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-sm);
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: var(--spacing-md);
            color: var(--text-primary);
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Cards Grid */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--spacing-lg);
        }

        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            transition: all var(--transition-medium);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-bronze), var(--accent-gold));
            opacity: 0;
            transition: opacity var(--transition-medium);
        }

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

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

        .feature-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(255,215,0,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-gold);
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Info Panels */
        .info-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-2xl);
            align-items: center;
        }

        .info-content h3 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: var(--spacing-md);
        }

        .info-content p {
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
        }

        .info-list {
            list-style: none;
            margin-bottom: var(--spacing-lg);
        }

        .info-list li {
            padding: var(--spacing-sm) 0;
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-sm);
            color: var(--text-secondary);
        }

        .info-list li i {
            color: var(--accent-gold);
            margin-top: 4px;
        }

        .info-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-lg);
        }

        .info-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 300px;
        }

        /* Process Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
        }

        .step-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            position: relative;
            transition: all var(--transition-medium);
        }

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

        .step-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: transparent;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            -webkit-background-clip: text;
            background-clip: text;
            display: block;
            margin-bottom: var(--spacing-md);
            line-height: 1;
        }

        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: var(--spacing-sm);
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Review Table */
        .review-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin-top: var(--spacing-xl);
        }

        .review-table th,
        .review-table td {
            padding: var(--spacing-md) var(--spacing-lg);
            text-align: left;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.95rem;
        }

        .review-table th {
            background: var(--tertiary-bg);
            color: var(--accent-gold);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-size: 0.8rem;
        }

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

        .review-table td:first-child {
            font-weight: 600;
            color: var(--text-primary);
        }

        .review-rating {
            color: var(--accent-gold);
        }

        .review-table tr:hover td {
            background: rgba(255,215,0,0.02);
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--spacing-lg);
        }

        .testimonial-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-medium);
            position: relative;
        }

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

        .testimonial-text {
            font-style: italic;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
        }

        .testimonial-avatar {
            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;
            color: #0D0D0F;
            font-weight: 700;
            font-size: 1rem;
        }

        .testimonial-info strong {
            display: block;
            color: var(--text-primary);
        }

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

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-md);
            background: var(--card-bg);
            overflow: hidden;
            transition: all var(--transition-medium);
        }

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

        .faq-question {
            padding: var(--spacing-lg);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            width: 100%;
            text-align: left;
        }

        .faq-question i {
            transition: transform var(--transition-medium);
            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-medium);
            color: var(--text-secondary);
            line-height: 1.7;
            padding: 0 var(--spacing-lg);
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding-bottom: var(--spacing-lg);
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1A1A1E 0%, #0D0D0F 100%);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-xl);
            padding: var(--spacing-3xl);
            text-align: center;
            margin: var(--spacing-3xl) 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,215,0,0.05) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-md);
            position: relative;
        }

        .cta-section p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: var(--spacing-lg);
            position: relative;
        }

        .cta-actions {
            display: flex;
            gap: var(--spacing-md);
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: var(--spacing-2xl);
            margin-bottom: var(--spacing-2xl);
        }

        .footer-logo-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            line-height: 1.4;
        }

        .footer-logo-text span {
            color: var(--accent-gold);
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: var(--spacing-lg);
        }

        .footer-payments {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }

        .pay-badge {
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--border-subtle);
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.03em;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

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

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

        .copyright {
            color: var(--text-placeholder);
            font-size: 0.8rem;
        }

        .footer-badges {
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }

        .badge-18 {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent-red);
            color: #fff;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            border: 2px solid #fff;
        }

        .badge-secure {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            color: var(--text-muted);
            background: rgba(255,255,255,0.05);
            padding: 6px 12px;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-subtle);
        }

        .badge-secure .lock-icon {
            color: var(--accent-green);
        }

        /* Floating Action Button */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(0,0,0,0.7);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            animation: fabFloat 3s ease-in-out infinite;
            transition: all var(--transition-medium);
            color: var(--accent-gold);
            font-size: 1.2rem;
        }

        .fab:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 8px 30px rgba(255,215,0,0.5);
        }

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

        .fab::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid #0D0D0F;
            animation: blink 2s infinite;
        }

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

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

        /* Responsive */
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .info-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .container,
            .container-wide {
                padding-left: var(--spacing-md);
                padding-right: var(--spacing-md);
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-logo {
                max-width: 200px;
            }
            .nav-links-wrapper {
                display: none;
                width: 100%;
                order: 3;
            }
            .nav-links {
                flex-direction: column;
                align-items: stretch;
                gap: 0;
            }
            .nav-link {
                padding: var(--spacing-md) 0;
                border-bottom: 1px solid var(--border-subtle);
            }
            .nav-auth-buttons {
                margin-left: auto;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-links-wrapper.open {
                display: block;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .hero-stats {
                gap: var(--spacing-md);
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cards-grid,
            .steps-grid,
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: var(--spacing-xl);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .page-hero p {
                font-size: 0.95rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .nav-logo {
                font-size: 0.9rem;
            }
            .nav-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #0D0D0F;
            --secondary-bg: #121216;
            --tertiary-bg: #1A1A1E;
            --card-bg: #17171B;
            --border-subtle: rgba(255, 215, 0, 0.10);
            --border-strong: rgba(255, 215, 0, 0.25);
            --accent-gold: #FFD700;
            --accent-amber: #FFBF00;
            --accent-bronze: #C5A059;
            --accent-red: #D32F2F;
            --accent-green: #2E7D32;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --text-primary: #F5F5F7;
            --text-secondary: #D1D1D6;
            --text-muted: #8E8E93;
            --text-placeholder: #6E6E73;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
            --shadow-gold: 0 4px 24px rgba(255,215,0,0.12);
            --shadow-gold-hover: 0 8px 40px rgba(255,215,0,0.22);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            --spacing-3xl: 64px;
            --font-primary: 'Be Vietnam Pro', 'Inter', 'Segoe UI', 'Roboto', sans-serif;
            --font-serif: 'Georgia', 'Times New Roman', serif;
            --line-height-body: 1.6;
            --line-height-heading: 1.3;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-medium: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        body {
            font-family: var(--font-primary);
            font-size: 1rem;
            line-height: var(--line-height-body);
            color: var(--text-primary);
            background-color: var(--primary-bg);
            background-image: 
                radial-gradient(ellipse at 50% 0%, rgba(197, 160, 89, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 30%, rgba(255, 215, 0, 0.03) 0%, transparent 50%),
                radial-gradient(ellipse at 20% 70%, rgba(46, 125, 50, 0.04) 0%, transparent 45%);
            background-attachment: fixed;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            font-size: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
            transition: all var(--transition-fast);
        }
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            color: var(--text-primary);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: var(--spacing-lg);
            padding-right: var(--spacing-lg);
        }
        .container-wide {
            width: 100%;
            max-width: 1360px;
            margin: 0 auto;
            padding-left: var(--spacing-lg);
            padding-right: var(--spacing-lg);
        }
        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 13, 15, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            padding-top: var(--spacing-sm);
            padding-bottom: var(--spacing-sm);
            min-height: 72px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-shrink: 0;
            max-width: 340px;
        }
        .nav-logo .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 800;
            color: #0D0D0F;
            box-shadow: var(--shadow-gold);
        }
        .nav-logo .logo-text {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-primary);
            line-height: 1.25;
            letter-spacing: 0.01em;
        }
        .nav-logo .logo-text span {
            color: var(--accent-gold);
            display: block;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .nav-links-wrapper {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .nav-link {
            display: inline-block;
            padding: 0.5rem 0.85rem;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-secondary);
            border-radius: var(--radius-full);
            border: 1px solid transparent;
            transition: all var(--transition-fast);
        }
        .nav-link:hover {
            color: var(--accent-gold);
            border-color: var(--border-subtle);
            background: rgba(255,215,0,0.04);
        }
        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255,215,0,0.08);
            border-color: var(--border-strong);
            box-shadow: var(--shadow-gold);
        }
        .auth-buttons {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            margin-left: auto;
        }
        .btn-login {
            padding: 0.55rem 1rem;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border: 1px solid transparent;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            background: transparent;
        }
        .btn-login:hover {
            color: var(--accent-gold);
            border-color: var(--border-subtle);
            background: rgba(255,215,0,0.04);
        }
        .btn-signup {
            padding: 0.55rem 1.1rem;
            font-weight: 700;
            font-size: 0.9rem;
            color: #0D0D0F;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-signup:hover {
            box-shadow: var(--shadow-gold-hover);
            transform: translateY(-1px);
        }
        .mobile-toggle {
            display: none;
            width: 44px;
            height: 44px;
            padding: 0.5rem;
            background: transparent;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            font-size: 1.5rem;
            align-items: center;
            justify-content: center;
        }
        /* Hero Group Buy */
        .hero-groupbuy {
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
            position: relative;
            background: linear-gradient(135deg, rgba(255,215,0,0.04) 0%, transparent 50%, rgba(46,125,50,0.03) 100%);
            border-bottom: 1px solid var(--border-subtle);
        }
        .hero-groupbuy .row {
            align-items: center;
        }
        .hero-group-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.35rem 0.9rem;
            background: rgba(255,215,0,0.08);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-full);
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 0.82rem;
            letter-spacing: 0.02em;
            margin-bottom: var(--spacing-md);
        }
        .hero-groupbuy h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: var(--line-height-heading);
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.01em;
        }
        .hero-groupbuy h1 .highlight {
            color: var(--accent-gold);
        }
        .hero-groupbuy p.lead {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-lg);
            max-width: 560px;
        }
        .group-progress-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-gold);
        }
        .group-progress-card .progress-label {
            display: flex;
            justify-content: space-between;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-sm);
        }
        .group-progress-card .progress-label span:last-child {
            color: var(--accent-gold);
        }
        .group-progress {
            height: 12px;
            background: var(--tertiary-bg);
            border-radius: var(--radius-full);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
        }
        .group-progress-bar {
            height: 100%;
            background: linear-gradient(90deg, var(--accent-bronze), var(--accent-gold));
            border-radius: var(--radius-full);
            width: 71%;
            box-shadow: 0 0 10px rgba(255,215,0,0.4);
            transition: width var(--transition-slow);
        }
        .group-actions {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            margin-top: var(--spacing-lg);
        }
        .btn-group-create,
        .btn-group-join {
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-group-create {
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            color: #0D0D0F;
            box-shadow: var(--shadow-gold);
        }
        .btn-group-create:hover {
            box-shadow: var(--shadow-gold-hover);
            transform: translateY(-2px);
        }
        .btn-group-join {
            background: transparent;
            color: var(--accent-gold);
            border: 1.5px solid var(--accent-gold);
        }
        .btn-group-join:hover {
            background: rgba(255,215,0,0.08);
        }
        .hero-visual {
            position: relative;
        }
        .hero-visual img {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-strong);
            box-shadow: var(--shadow-lg);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .hero-visual .overlay-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(13,13,15,0.85);
            backdrop-filter: blur(8px);
            padding: 0.5rem 1rem;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-subtle);
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 0.85rem;
        }
        /* Sections general */
        .section {
            padding: var(--spacing-3xl) 0;
            position: relative;
        }
        .section-alt {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .section-header {
            margin-bottom: var(--spacing-2xl);
            max-width: 720px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.01em;
        }
        .section-header h2 .underline-gold {
            position: relative;
            display: inline-block;
        }
        .section-header h2 .underline-gold::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 50px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: var(--radius-full);
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1rem;
            margin-top: var(--spacing-sm);
        }
        .text-gold { color: var(--accent-gold); }
        /* Pain Points */
        .pain-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .pain-list li {
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-md);
            padding: var(--spacing-md) 0;
            border-bottom: 1px solid var(--border-subtle);
        }
        .pain-list li:last-child {
            border-bottom: none;
        }
        .pain-icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            border-radius: var(--radius-md);
            background: rgba(211,47,47,0.1);
            color: var(--accent-red);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
        }
        .pain-content h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.2rem;
        }
        .pain-content p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin: 0;
        }
        /* Solution Steps */
        .solution-steps {
            counter-reset: step-counter;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .solution-steps li {
            counter-increment: step-counter;
            display: flex;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-xl);
            align-items: flex-start;
        }
        .solution-steps .step-number {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--card-bg);
            border: 1px solid var(--border-strong);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            box-shadow: var(--shadow-gold);
        }
        .solution-steps .step-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .solution-steps .step-content p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin: 0;
        }
        .tip-highlight {
            background: rgba(255,215,0,0.06);
            border-left: 3px solid var(--accent-gold);
            padding: var(--spacing-md);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin-top: var(--spacing-md);
            font-weight: 500;
        }
        /* Testimonials */
        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-md);
            height: 100%;
            position: relative;
        }
        .testimonial-card::before {
            content: '\201C';
            font-size: 3rem;
            color: var(--accent-gold);
            opacity: 0.25;
            line-height: 1;
            position: absolute;
            top: 10px;
            left: 16px;
            font-family: serif;
        }
        .testimonial-card p {
            margin-top: var(--spacing-xl);
            color: var(--text-secondary);
            font-style: italic;
            font-size: 0.95rem;
            position: relative;
            z-index: 1;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-md);
        }
        .testimonial-author .avatar {
            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-weight: 700;
            color: #0D0D0F;
        }
        .testimonial-author .info strong {
            display: block;
            font-size: 0.95rem;
        }
        .testimonial-author .info span {
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        /* FAQ Accordion customization */
        .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md) !important;
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            padding: 1.1rem 1.25rem;
            box-shadow: none !important;
            border: none;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(255,215,0,0.05);
            color: var(--accent-gold);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--border-strong);
        }
        .accordion-button::after {
            filter: invert(1) sepia(1) saturate(5) hue-rotate(190deg);
        }
        .accordion-body {
            color: var(--text-secondary);
            background: var(--card-bg);
            padding: 1.25rem;
        }
        /* Footer */
        .site-footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-subtle);
            padding: var(--spacing-2xl) 0 var(--spacing-xl);
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }
        .footer-logo-text {
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }
        .footer-logo-text span {
            color: var(--accent-gold);
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            max-width: 420px;
        }
        .footer-payments {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-xs);
            margin-top: var(--spacing-md);
        }
        .pay-badge {
            background: var(--tertiary-bg);
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            border-radius: var(--radius-full);
            padding: 0.3rem 0.8rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-gold);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            padding-top: var(--spacing-lg);
            border-top: 1px solid var(--border-subtle);
        }
        .copyright {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
        }
        .footer-badges {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }
        .badge-18 {
            background: var(--accent-red);
            color: #fff;
            border-radius: var(--radius-full);
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.9rem;
        }
        .badge-secure {
            background: var(--tertiary-bg);
            border: 1px solid var(--border-subtle);
            color: var(--text-secondary);
            padding: 0.35rem 0.9rem;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .lock-icon {
            font-size: 0.9rem;
        }
        /* FAB */
        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-full);
            background: rgba(13,13,15,0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            box-shadow: 0 0 15px rgba(0,240,255,0.25);
            color: var(--accent-cyan);
            font-size: 1.4rem;
            transition: all var(--transition-fast);
            opacity: 0.7;
        }
        .fab-left::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            z-index: -1;
            background-clip: border-box;
            opacity: 0.6;
            transition: opacity var(--transition-fast);
        }
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            color: #fff;
            box-shadow: 0 0 25px rgba(0,240,255,0.5);
        }
        .fab-left:hover::before {
            opacity: 1;
        }
        .fab-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid var(--primary-bg);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.3); opacity: 0.7; }
        }
        /* Responsive */
        @media (max-width: 991.98px) {
            .hero-groupbuy {
                padding: var(--spacing-2xl) 0 var(--spacing-xl);
            }
            .hero-groupbuy h1 {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-lg);
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 767.98px) {
            .header-inner {
                flex-wrap: wrap;
                min-height: auto;
                padding: var(--spacing-sm);
            }
            .nav-logo {
                max-width: 250px;
            }
            .nav-logo .logo-text {
                font-size: 1rem;
            }
            .mobile-toggle {
                display: flex;
            }
            .nav-links-wrapper {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: var(--secondary-bg);
                border-radius: var(--radius-md);
                border: 1px solid var(--border-subtle);
                padding: var(--spacing-sm);
                margin-top: var(--spacing-sm);
            }
            .nav-links-wrapper.show {
                display: flex;
            }
            .nav-links {
                flex-direction: column;
                align-items: stretch;
                width: 100%;
            }
            .nav-link {
                display: block;
                text-align: left;
                padding: 0.7rem 1rem;
            }
            .auth-buttons {
                width: 100%;
                margin-left: 0;
                margin-top: var(--spacing-sm);
                justify-content: space-between;
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .hero-groupbuy h1 {
                font-size: 1.7rem;
            }
            .hero-groupbuy .lead {
                font-size: 1rem;
            }
            .group-progress-card {
                padding: var(--spacing-md);
            }
            .btn-group-create,
            .btn-group-join {
                padding: 0.7rem 1.2rem;
                font-size: 0.9rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                bottom: 5rem;
                left: 0.75rem;
                font-size: 1.2rem;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-left: var(--spacing-md);
                padding-right: var(--spacing-md);
            }
            .hero-groupbuy .group-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-groupbuy .group-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .auth-buttons {
                flex-direction: column;
                gap: var(--spacing-xs);
            }
            .btn-login,
            .btn-signup {
                width: 100%;
                text-align: center;
            }
        }