/* roulang page: index */
:root {
            --bg-primary: #0D0B14;
            --bg-surface: #1A1625;
            --bg-surface-2: #211C2F;
            --bg-footer: #08060D;
            --primary: #8B5CF6;
            --primary-hover: #7A4AE0;
            --secondary: #22D3EE;
            --accent: #EC4899;
            --accent-hover: #D43D86;
            --text-primary: #F5F3F7;
            --text-secondary: #A8A3B3;
            --text-muted: #6E6878;
            --border-color: #2E2938;
            --success: #34D399;
            --warning: #FBBF24;
            --danger: #F87171;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --shadow-card: 0 4px 16px rgba(139, 92, 246, 0.08);
            --shadow-card-hover: 0 8px 28px rgba(139, 92, 246, 0.16);
            --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.35);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-stack: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --font-num: 'Inter', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 45%, rgba(34, 211, 238, 0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 20% 70%, rgba(236, 72, 153, 0.04) 0%, transparent 50%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%238B5CF6' fill-opacity='0.04' fill-rule='evenodd'%3E%3Cpath d='M0 40L40 0h-8L0 32v8zm40 0V32L8 0H0l40 40z'/%3E%3C/g%3E%3C/svg%3E");
            pointer-events: none;
            z-index: 0;
        }

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

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

        a:hover {
            color: var(--primary-hover);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
        }

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

        button:disabled {
            opacity: 0.4;
            cursor: not-allowed;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            position: relative;
            z-index: 1;
        }

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

        .section-sm {
            padding: var(--spacing-lg) 0;
            position: relative;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 680px;
            margin-bottom: var(--spacing-lg);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-bottom: var(--spacing-xs);
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 11, 20, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(13, 11, 20, 0.96);
            border-bottom-color: rgba(139, 92, 246, 0.25);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            height: var(--header-height);
            flex-wrap: wrap;
        }

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

        .nav-logo a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 0.04em;
            transition: color var(--transition-fast);
        }

        .nav-logo a:hover {
            color: var(--primary);
        }

        .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            box-shadow: 0 0 16px rgba(139, 92, 246, 0.4);
            flex-shrink: 0;
        }

        .nav-search {
            flex: 1;
            max-width: 380px;
            min-width: 220px;
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search .search-icon {
            position: absolute;
            left: 16px;
            color: var(--text-muted);
            pointer-events: none;
            font-size: 15px;
        }

        .nav-search input {
            width: 100%;
            height: 44px;
            background: var(--bg-surface-2);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-full);
            color: var(--text-primary);
            padding: 0 16px 0 44px;
            font-size: 14px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .nav-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.25), 0 0 20px rgba(139, 92, 246, 0.4);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(139, 92, 246, 0.1);
            border-color: rgba(139, 92, 246, 0.25);
        }

        .nav-links a.active {
            color: var(--primary);
            background: rgba(139, 92, 246, 0.14);
            border-color: rgba(139, 92, 246, 0.35);
            font-weight: 600;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-size: 20px;
            transition: background var(--transition-fast), border-color var(--transition-fast);
        }

        .nav-toggle:hover {
            background: var(--bg-surface-2);
            border-color: var(--primary);
        }

        .nav-search-mobile {
            display: none;
            width: 100%;
            padding: 0 0 var(--spacing-sm) 0;
        }

        .nav-search-mobile .nav-search {
            max-width: 100%;
            min-width: 100%;
        }

        .nav-search-mobile .nav-search input {
            height: 40px;
            font-size: 13px;
        }

        /* Hero Section */
        .hero {
            position: relative;
            padding: var(--spacing-xl) 0;
            min-height: 620px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(139, 92, 246, 0.1) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 65%, rgba(34, 211, 238, 0.07) 0%, transparent 50%),
                radial-gradient(ellipse at 55% 20%, rgba(236, 72, 153, 0.06) 0%, transparent 45%);
            z-index: 0;
        }

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

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.3);
            color: var(--secondary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.04em;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--success);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 4px var(--success);
            }
            50% {
                opacity: 0.5;
                box-shadow: 0 0 12px var(--success);
            }
        }

        .hero h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }

        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero h1 .highlight::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 2px;
            height: 8px;
            background: rgba(139, 92, 246, 0.25);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: var(--spacing-lg);
            max-width: 500px;
        }

        .hero-cta {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            margin-bottom: var(--spacing-lg);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            line-height: 1.4;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 6px 24px rgba(139, 92, 246, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }

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

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(34, 211, 238, 0.5);
            color: var(--secondary);
        }

        .btn-outline:hover {
            background: rgba(34, 211, 238, 0.1);
            border-color: var(--secondary);
            color: var(--secondary);
            transform: translateY(-1px);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(236, 72, 153, 0.32);
            padding: 15px 34px;
            font-size: 16px;
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            box-shadow: 0 6px 28px rgba(236, 72, 153, 0.48);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-sm {
            padding: 9px 18px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 17px;
            border-radius: var(--radius-lg);
        }

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

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

        .hero-stat .stat-num {
            font-family: var(--font-num);
            font-size: 26px;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: 0.02em;
        }

        .hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.04em;
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            box-shadow: 0 8px 40px rgba(139, 92, 246, 0.15);
        }

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

        .hero-visual:hover img {
            transform: scale(1.02);
        }

        .hero-visual .overlay-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(13, 11, 20, 0.85);
            border: 1px solid rgba(139, 92, 246, 0.4);
            color: var(--text-primary);
            font-size: 13px;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-visual .overlay-tag .icon {
            color: var(--secondary);
        }

        /* Section cards */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .card {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-card);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        .card:hover {
            border-color: rgba(139, 92, 246, 0.45);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .card-accent-top {
            border-top: 3px solid var(--primary);
        }

        .card-accent-left {
            border-left: 3px solid var(--secondary);
        }

        .card-horizontal {
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .card-icon.purple {
            background: rgba(139, 92, 246, 0.12);
            color: var(--primary);
            border: 1px solid rgba(139, 92, 246, 0.25);
        }

        .card-icon.cyan {
            background: rgba(34, 211, 238, 0.1);
            color: var(--secondary);
            border: 1px solid rgba(34, 211, 238, 0.25);
        }

        .card-icon.pink {
            background: rgba(236, 72, 153, 0.1);
            color: var(--accent);
            border: 1px solid rgba(236, 72, 153, 0.25);
        }

        .card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            margin-top: 12px;
            transition: color var(--transition-fast), gap var(--transition-fast);
        }

        .card .card-link:hover {
            color: var(--secondary);
            gap: 8px;
        }

        /* Pain points */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .pain-item {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .pain-item:hover {
            border-color: rgba(236, 72, 153, 0.4);
            box-shadow: var(--shadow-card-hover);
        }

        .pain-item .pain-num {
            font-family: var(--font-num);
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.1em;
            margin-bottom: 12px;
        }

        .pain-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .pain-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* Solutions */
        .solution-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .solution-item {
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .solution-item:hover {
            border-color: rgba(34, 211, 238, 0.4);
            box-shadow: var(--shadow-card-hover);
        }

        .solution-item .card-icon {
            margin-top: 2px;
        }

        .solution-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .solution-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Deep content */
        .deep-content {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .deep-content::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
        }

        .deep-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
            line-height: 1.4;
        }

        .deep-content h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-primary);
            margin: var(--spacing-md) 0 var(--spacing-sm);
        }

        .deep-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: var(--spacing-sm);
        }

        .deep-content ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: var(--spacing-sm);
        }

        .deep-content ul li {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding-left: 24px;
            position: relative;
            margin-bottom: 8px;
        }

        .deep-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 10px;
            height: 10px;
            border-radius: 2px;
            background: var(--primary);
            opacity: 0.7;
        }

        .deep-content .highlight-text {
            color: var(--secondary);
            font-weight: 500;
        }

        /* Stats section */
        .stats-section {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .stat-block {
            text-align: center;
            padding: var(--spacing-md);
            border-radius: var(--radius-md);
            background: var(--bg-surface-2);
            border: 1px solid var(--border-color);
            transition: border-color var(--transition-fast);
        }

        .stat-block:hover {
            border-color: rgba(139, 92, 246, 0.4);
        }

        .stat-block .stat-num-large {
            font-family: var(--font-num);
            font-size: 36px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
        }

        .stat-block .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* News section */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .news-item {
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .news-item:hover {
            border-color: rgba(139, 92, 246, 0.4);
            box-shadow: var(--shadow-card);
        }

        .news-date {
            flex-shrink: 0;
            width: 72px;
            text-align: center;
            background: var(--bg-surface-2);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 8px 6px;
        }

        .news-date .date-day {
            font-family: var(--font-num);
            font-size: 22px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
        }

        .news-date .date-month {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.06em;
        }

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

        .news-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .news-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-body .news-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
        }

        .news-body .news-link:hover {
            color: var(--secondary);
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .testimonial-card {
            background: var(--bg-surface-2);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .testimonial-card:hover {
            border-color: rgba(139, 92, 246, 0.4);
            box-shadow: var(--shadow-card-hover);
        }

        .testimonial-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }

        .testimonial-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            border: 2px solid var(--primary);
            flex-shrink: 0;
        }

        .testimonial-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .testimonial-tag {
            font-size: 12px;
            color: var(--text-muted);
        }

        .testimonial-card blockquote {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            font-style: italic;
            border-left: 3px solid var(--primary);
            padding-left: 14px;
        }

        /* Brand intro */
        .brand-intro {
            display: flex;
            gap: var(--spacing-lg);
            align-items: center;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.06), rgba(34, 211, 238, 0.04));
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: var(--spacing-lg);
        }

        .brand-intro .brand-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

        .brand-intro .brand-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 10px;
        }

        .brand-intro .brand-visual {
            flex-shrink: 0;
            width: 280px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .brand-intro .brand-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Campaign section */
        .campaign-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }

        .campaign-card {
            border-radius: var(--radius-xl);
            padding: var(--spacing-lg);
            position: relative;
            overflow: hidden;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }

        .campaign-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .campaign-countdown {
            background: linear-gradient(135deg, rgba(236, 72, 153, 0.12), rgba(139, 92, 246, 0.08));
            border: 1px solid rgba(236, 72, 153, 0.3);
        }

        .campaign-festival {
            background: linear-gradient(135deg, rgba(34, 211, 238, 0.1), rgba(139, 92, 246, 0.06));
            border: 1px solid rgba(34, 211, 238, 0.3);
        }

        .campaign-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .campaign-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: var(--spacing-md);
        }

        .countdown-timer {
            display: flex;
            gap: var(--spacing-xs);
            margin-bottom: var(--spacing-md);
        }

        .countdown-unit {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            text-align: center;
            min-width: 64px;
        }

        .countdown-unit .count-num {
            font-family: var(--font-num);
            font-size: 26px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .countdown-unit .count-label {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 0.1em;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

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

        .faq-item:hover {
            border-color: rgba(139, 92, 246, 0.35);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            padding: var(--spacing-md);
            cursor: pointer;
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: var(--bg-surface-2);
        }

        .faq-question h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
        }

        .faq-toggle-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 14px;
            transition: all var(--transition-fast);
        }

        .faq-item.open .faq-toggle-icon {
            transform: rotate(45deg);
            border-color: var(--primary);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 var(--spacing-md);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: var(--spacing-md);
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(236, 72, 153, 0.08));
            border: 1px solid rgba(139, 92, 246, 0.3);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            right: -50%;
            bottom: -50%;
            background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.06) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            position: relative;
        }

        .cta-section p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin: 0 auto var(--spacing-md);
            position: relative;
        }

        .cta-section .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            position: relative;
        }

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

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

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

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

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

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

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

        .footer-bottom .copyright {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom .legal-links {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            align-items: center;
            font-size: 13px;
        }

        .footer-bottom .legal-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-bottom .legal-links a:hover {
            color: var(--primary);
        }

        .footer-bottom .legal-links .separator {
            color: var(--border-color);
        }

        .footer-bottom .beian {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

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

            .hero {
                min-height: auto;
                padding: var(--spacing-lg) 0;
            }

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

            .grid-4,
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .brand-intro {
                flex-direction: column;
                align-items: flex-start;
            }

            .brand-intro .brand-visual {
                width: 100%;
                max-width: 400px;
            }

            .campaign-section {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                flex-wrap: wrap;
                height: auto;
                padding: var(--spacing-sm) 0;
                gap: var(--spacing-sm);
            }

            .nav-logo {
                flex: 1;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-search {
                display: none;
            }

            .nav-search-mobile {
                display: block;
            }

            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding-top: var(--spacing-sm);
                border-top: 1px solid var(--border-color);
            }

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

            .nav-links a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                width: 100%;
                justify-content: center;
            }

            .grid-3,
            .grid-2,
            .pain-grid,
            .testimonial-grid {
                grid-template-columns: 1fr;
            }

            .grid-4,
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }

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

            .section-title {
                font-size: 22px;
            }

            .hero h1 {
                font-size: 26px;
            }

            .hero-desc {
                font-size: 15px;
            }

            .deep-content {
                padding: var(--spacing-md);
            }

            .deep-content h2 {
                font-size: 20px;
            }

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

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

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

            .stat-block .stat-num-large {
                font-size: 26px;
            }

            .countdown-timer {
                flex-wrap: wrap;
            }

            .countdown-unit {
                min-width: 52px;
                padding: 8px 10px;
            }

            .countdown-unit .count-num {
                font-size: 20px;
            }

            .cta-section h2 {
                font-size: 22px;
            }

            .news-item {
                flex-direction: column;
                gap: 10px;
            }

            .news-date {
                width: auto;
                display: flex;
                align-items: center;
                gap: 8px;
                padding: 6px 12px;
            }

            .news-date .date-day {
                font-size: 16px;
            }
        }

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

            .hero h1 {
                font-size: 22px;
            }

            .hero-stats {
                gap: var(--spacing-sm);
            }

            .hero-stat .stat-num {
                font-size: 20px;
            }

            .btn {
                padding: 11px 20px;
                font-size: 14px;
            }

            .btn-lg {
                padding: 13px 26px;
                font-size: 15px;
            }

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

            .stat-block {
                padding: var(--spacing-sm);
            }

            .stat-block .stat-num-large {
                font-size: 22px;
            }

            .section-title {
                font-size: 20px;
            }

            .deep-content p {
                font-size: 14px;
            }

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

            .cta-section {
                padding: var(--spacing-md);
            }
        }

        /* Utility */
        .text-center {
            text-align: center;
        }

        .text-right {
            text-align: right;
        }

        .mt-sm {
            margin-top: var(--spacing-sm);
        }
        .mt-md {
            margin-top: var(--spacing-md);
        }
        .mt-lg {
            margin-top: var(--spacing-lg);
        }
        .mb-sm {
            margin-bottom: var(--spacing-sm);
        }
        .mb-md {
            margin-bottom: var(--spacing-md);
        }
        .mb-lg {
            margin-bottom: var(--spacing-lg);
        }

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

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

/* roulang page: category1 */
:root {
        --bg-primary: #0D0B14;
        --bg-surface: #1A1625;
        --bg-surface-2: #211C2F;
        --bg-footer: #08060D;
        --primary: #8B5CF6;
        --primary-hover: #7A4AE0;
        --secondary: #22D3EE;
        --accent: #EC4899;
        --accent-hover: #D43D86;
        --text-primary: #F5F3F7;
        --text-secondary: #A8A3B3;
        --text-muted: #6E6878;
        --border-color: #2E2938;
        --success: #34D399;
        --warning: #FBBF24;
        --danger: #F87171;
        --radius-sm: 6px;
        --radius-md: 10px;
        --radius-lg: 14px;
        --radius-xl: 20px;
        --radius-full: 999px;
        --shadow-card: 0 4px 16px rgba(139, 92, 246, 0.08);
        --shadow-card-hover: 0 8px 28px rgba(139, 92, 246, 0.16);
        --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.35);
        --transition-fast: 0.2s ease;
        --transition-base: 0.3s ease;
        --font-stack: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
        --font-num: 'Inter', system-ui, -apple-system, sans-serif;
        --container-max: 1200px;
        --header-height: 72px;
        --spacing-xs: 8px;
        --spacing-sm: 16px;
        --spacing-md: 24px;
        --spacing-lg: 40px;
        --spacing-xl: 64px;
        --spacing-2xl: 96px;
    }

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

    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    body {
        font-family: var(--font-stack);
        font-size: 16px;
        font-weight: 400;
        line-height: 1.75;
        color: var(--text-primary);
        background-color: var(--bg-primary);
        background-image:
            radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.06) 0%, transparent 60%),
            radial-gradient(ellipse at 80% 45%, rgba(34, 211, 238, 0.04) 0%, transparent 55%),
            radial-gradient(ellipse at 20% 70%, rgba(236, 72, 153, 0.04) 0%, transparent 50%);
        background-attachment: fixed;
        min-height: 100vh;
        overflow-x: hidden;
    }

    body::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%238B5CF6' fill-opacity='0.04' fill-rule='evenodd'%3E%3Cpath d='M0 40L40 0h-8L0 32v8zm40 0V32L8 0H0l40 40z'/%3E%3C/g%3E%3C/svg%3E");
        pointer-events: none;
        z-index: 0;
    }

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

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

    a:hover {
        color: var(--primary-hover);
    }

    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: inherit;
        line-height: inherit;
        outline: none;
    }

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

    button:disabled {
        opacity: 0.4;
        cursor: not-allowed;
    }

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

    .container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding: 0 var(--spacing-md);
        position: relative;
        z-index: 1;
    }

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

    .section-sm {
        padding: var(--spacing-lg) 0;
        position: relative;
    }

    .section-title {
        font-size: 28px;
        font-weight: 700;
        color: var(--text-primary);
        line-height: 1.35;
        margin-bottom: var(--spacing-sm);
        letter-spacing: 0.02em;
    }

    .section-subtitle {
        font-size: 16px;
        color: var(--text-secondary);
        line-height: 1.75;
        max-width: 680px;
        margin-bottom: var(--spacing-lg);
    }

    .section-label {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        color: var(--secondary);
        text-transform: uppercase;
        letter-spacing: 0.12em;
        margin-bottom: var(--spacing-xs);
    }

    /* Buttons */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        font-weight: 500;
        font-size: 15px;
        border-radius: var(--radius-md);
        padding: 12px 24px;
        transition: all var(--transition-fast);
        text-align: center;
        cursor: pointer;
        line-height: 1.4;
        white-space: nowrap;
    }

    .btn-primary {
        background-color: var(--primary);
        color: #fff;
        border: 1px solid var(--primary);
    }

    .btn-primary:hover {
        background-color: var(--primary-hover);
        border-color: var(--primary-hover);
        color: #fff;
        box-shadow: var(--shadow-glow);
        transform: translateY(-2px);
    }

    .btn-secondary {
        background: transparent;
        color: var(--secondary);
        border: 1px solid var(--secondary);
    }

    .btn-secondary:hover {
        background: rgba(34, 211, 238, 0.1);
        color: var(--secondary);
        transform: translateY(-2px);
    }

    .btn-accent {
        background-color: var(--accent);
        color: #fff;
        border: 1px solid var(--accent);
    }

    .btn-accent:hover {
        background-color: var(--accent-hover);
        border-color: var(--accent-hover);
        color: #fff;
        box-shadow: 0 0 24px rgba(236, 72, 153, 0.35);
        transform: translateY(-2px);
    }

    .btn-sm {
        padding: 8px 16px;
        font-size: 14px;
        border-radius: var(--radius-sm);
    }

    .btn-lg {
        padding: 14px 32px;
        font-size: 16px;
        border-radius: var(--radius-lg);
    }

    /* Badge & Tags */
    .badge {
        display: inline-block;
        padding: 4px 12px;
        border-radius: var(--radius-full);
        font-size: 12px;
        font-weight: 500;
        line-height: 1.6;
        letter-spacing: 0.04em;
    }

    .badge-primary {
        background: rgba(139, 92, 246, 0.15);
        color: var(--primary);
        border: 1px solid rgba(139, 92, 246, 0.3);
    }

    .badge-secondary {
        background: rgba(34, 211, 238, 0.12);
        color: var(--secondary);
        border: 1px solid rgba(34, 211, 238, 0.25);
    }

    .badge-accent {
        background: rgba(236, 72, 153, 0.12);
        color: var(--accent);
        border: 1px solid rgba(236, 72, 153, 0.25);
    }

    /* Header & Navigation */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(13, 11, 20, 0.88);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-bottom: 1px solid var(--border-color);
        transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    }

    .site-header.scrolled {
        background: rgba(13, 11, 20, 0.96);
        border-bottom-color: rgba(139, 92, 246, 0.25);
        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    }

    .nav-wrapper {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: var(--spacing-md);
        min-height: var(--header-height);
        padding: 0 var(--spacing-md);
        max-width: var(--container-max);
        margin: 0 auto;
        position: relative;
        z-index: 101;
    }

    .nav-logo {
        flex-shrink: 0;
    }

    .nav-logo a {
        font-size: 22px;
        font-weight: 700;
        color: var(--text-primary);
        letter-spacing: 0.06em;
        display: flex;
        align-items: center;
        gap: 8px;
        transition: color var(--transition-fast);
    }

    .nav-logo a:hover {
        color: var(--primary);
    }

    .nav-logo a .logo-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 32px;
        height: 32px;
        border-radius: var(--radius-sm);
        background: linear-gradient(135deg, var(--primary), var(--accent));
        color: #fff;
        font-size: 16px;
        font-weight: 700;
        line-height: 1;
    }

    .nav-search {
        flex: 1;
        max-width: 400px;
        min-width: 200px;
        position: relative;
    }

    .nav-search input {
        width: 100%;
        padding: 10px 40px 10px 40px;
        border-radius: var(--radius-full);
        border: 1px solid var(--border-color);
        background-color: var(--bg-surface-2);
        color: var(--text-primary);
        font-size: 14px;
        transition: all var(--transition-fast);
    }

    .nav-search input:focus {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2), var(--shadow-glow);
        background-color: rgba(33, 28, 47, 0.95);
    }

    .nav-search .search-icon {
        position: absolute;
        left: 14px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-muted);
        pointer-events: none;
        font-size: 15px;
        line-height: 1;
    }

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

    .nav-links a {
        color: var(--text-secondary);
        font-size: 14px;
        font-weight: 500;
        padding: 8px 14px;
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
        letter-spacing: 0.02em;
        position: relative;
    }

    .nav-links a:hover {
        color: var(--text-primary);
        background: rgba(139, 92, 246, 0.08);
    }

    .nav-links a.active {
        color: var(--primary);
        background: rgba(139, 92, 246, 0.12);
    }

    .nav-links a.active::after {
        content: '';
        position: absolute;
        bottom: -1px;
        left: 14px;
        right: 14px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
    }

    .nav-toggle {
        display: none;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4px;
        width: 40px;
        height: 40px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-color);
        background: var(--bg-surface);
        transition: all var(--transition-fast);
        flex-shrink: 0;
    }

    .nav-toggle span {
        display: block;
        width: 18px;
        height: 2px;
        background: var(--text-primary);
        border-radius: 1px;
        transition: all var(--transition-fast);
    }

    .nav-toggle:hover {
        border-color: var(--primary);
    }

    .nav-toggle.active span:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }

    /* Mobile nav overlay */
    .nav-mobile-panel {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(13, 11, 20, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-color);
        padding: var(--spacing-md);
        z-index: 99;
        flex-direction: column;
        gap: var(--spacing-xs);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    }

    .nav-mobile-panel.open {
        display: flex;
    }

    .nav-mobile-panel a {
        color: var(--text-secondary);
        font-size: 15px;
        font-weight: 500;
        padding: 12px 16px;
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
    }

    .nav-mobile-panel a:hover {
        color: var(--text-primary);
        background: rgba(139, 92, 246, 0.08);
    }

    .nav-mobile-panel a.active {
        color: var(--primary);
        background: rgba(139, 92, 246, 0.12);
    }

    /* Category Hero */
    .category-hero {
        padding: var(--spacing-xl) 0 var(--spacing-lg);
        position: relative;
        overflow: hidden;
        background: linear-gradient(180deg, rgba(139, 92, 246, 0.08) 0%, rgba(13, 11, 20, 0.6) 60%, var(--bg-primary) 100%);
    }

    .category-hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-image: url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-position: center;
        opacity: 0.25;
        z-index: 0;
    }

    .category-hero::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(180deg, rgba(13, 11, 20, 0.55) 0%, rgba(13, 11, 20, 0.85) 80%, var(--bg-primary) 100%);
        z-index: 0;
    }

    .category-hero .container {
        position: relative;
        z-index: 1;
        display: flex;
        align-items: flex-start;
        gap: var(--spacing-xl);
        flex-wrap: wrap;
    }

    .category-hero-content {
        flex: 1;
        min-width: 280px;
        max-width: 620px;
    }

    .category-hero-content .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: var(--spacing-sm);
        flex-wrap: wrap;
    }

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

    .category-hero-content .breadcrumb a:hover {
        color: var(--primary);
    }

    .category-hero-content .breadcrumb .separator {
        color: var(--text-muted);
    }

    .category-hero-content h1 {
        font-size: 36px;
        font-weight: 700;
        color: var(--text-primary);
        line-height: 1.3;
        margin-bottom: var(--spacing-sm);
        letter-spacing: 0.02em;
    }

    .category-hero-content h1 .highlight {
        color: var(--primary);
        position: relative;
    }

    .category-hero-content h1 .highlight::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        right: 0;
        height: 2px;
        background: var(--primary);
        border-radius: 1px;
        opacity: 0.6;
    }

    .category-hero-content .hero-desc {
        font-size: 16px;
        color: var(--text-secondary);
        line-height: 1.8;
        margin-bottom: var(--spacing-md);
        max-width: 560px;
    }

    .category-hero-stats {
        display: flex;
        gap: var(--spacing-md);
        flex-wrap: wrap;
        margin-top: var(--spacing-md);
    }

    .hero-stat {
        display: flex;
        align-items: center;
        gap: 10px;
        background: rgba(26, 22, 37, 0.7);
        border: 1px solid var(--border-color);
        padding: 10px 18px;
        border-radius: var(--radius-md);
        transition: all var(--transition-fast);
    }

    .hero-stat:hover {
        border-color: rgba(139, 92, 246, 0.4);
        box-shadow: var(--shadow-card);
    }

    .hero-stat .stat-num {
        font-size: 18px;
        font-weight: 700;
        color: var(--secondary);
        font-family: var(--font-num);
        letter-spacing: 0.02em;
    }

    .hero-stat .stat-label {
        font-size: 13px;
        color: var(--text-secondary);
    }

    /* Cards Grid */
    .cards-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-md);
    }

    .cards-grid-2 {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .cards-grid-4 {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-md);
    }

    /* Value Cards */
    .value-card {
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: var(--spacing-md);
        transition: all var(--transition-fast);
        position: relative;
        overflow: hidden;
    }

    .value-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--primary), var(--secondary));
        opacity: 0;
        transition: opacity var(--transition-fast);
    }

    .value-card:hover {
        border-color: rgba(139, 92, 246, 0.4);
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-4px);
    }

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

    .value-card .card-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        border-radius: var(--radius-md);
        background: rgba(139, 92, 246, 0.12);
        color: var(--primary);
        font-size: 22px;
        margin-bottom: var(--spacing-sm);
        transition: all var(--transition-fast);
    }

    .value-card:hover .card-icon {
        background: rgba(139, 92, 246, 0.2);
        box-shadow: var(--shadow-glow);
    }

    .value-card h3 {
        font-size: 18px;
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: var(--spacing-xs);
        line-height: 1.4;
    }

    .value-card p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
    }

    /* Scenario Section */
    .scenario-list {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .scenario-item {
        display: flex;
        align-items: flex-start;
        gap: var(--spacing-md);
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: var(--spacing-md);
        transition: all var(--transition-fast);
    }

    .scenario-item:hover {
        border-color: rgba(34, 211, 238, 0.35);
        box-shadow: var(--shadow-card);
        transform: translateX(4px);
    }

    .scenario-item .scenario-num {
        flex-shrink: 0;
        width: 36px;
        height: 36px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 15px;
        font-weight: 700;
        font-family: var(--font-num);
        color: var(--secondary);
        background: rgba(34, 211, 238, 0.08);
        border: 1px solid rgba(34, 211, 238, 0.2);
        border-radius: var(--radius-sm);
    }

    .scenario-item .scenario-content h4 {
        font-size: 16px;
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: 4px;
    }

    .scenario-item .scenario-content p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
    }

    /* Guide Cards */
    .guide-card {
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: all var(--transition-fast);
        display: flex;
        flex-direction: column;
    }

    .guide-card:hover {
        border-color: rgba(139, 92, 246, 0.45);
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-4px);
    }

    .guide-card .card-img {
        position: relative;
        aspect-ratio: 16/9;
        overflow: hidden;
        background: var(--bg-surface-2);
    }

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

    .guide-card:hover .card-img img {
        transform: scale(1.05);
    }

    .guide-card .card-img .img-badge {
        position: absolute;
        top: 12px;
        left: 12px;
        z-index: 2;
    }

    .guide-card .card-body {
        padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .guide-card .card-body h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--text-primary);
        line-height: 1.4;
        margin-bottom: var(--spacing-xs);
    }

    .guide-card .card-body p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
        margin-bottom: var(--spacing-sm);
        flex: 1;
    }

    .guide-card .card-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: var(--spacing-xs);
        flex-wrap: wrap;
        padding-top: var(--spacing-xs);
        border-top: 1px solid var(--border-color);
    }

    .guide-card .card-meta .meta-date {
        font-size: 13px;
        color: var(--text-muted);
    }

    .guide-card .card-meta .meta-link {
        font-size: 13px;
        font-weight: 500;
        color: var(--primary);
        transition: all var(--transition-fast);
    }

    .guide-card .card-meta .meta-link:hover {
        color: var(--secondary);
    }

    /* Process Section */
    .process-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-md);
        counter-reset: process-step;
    }

    .process-step {
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: var(--spacing-md);
        position: relative;
        transition: all var(--transition-fast);
        counter-increment: process-step;
    }

    .process-step:hover {
        border-color: rgba(139, 92, 246, 0.4);
        box-shadow: var(--shadow-card);
        transform: translateY(-3px);
    }

    .process-step .step-number {
        font-size: 40px;
        font-weight: 700;
        font-family: var(--font-num);
        color: rgba(139, 92, 246, 0.15);
        position: absolute;
        top: 12px;
        right: 16px;
        line-height: 1;
    }

    .process-step .step-icon {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: var(--radius-full);
        background: rgba(236, 72, 153, 0.12);
        color: var(--accent);
        font-size: 20px;
        margin-bottom: var(--spacing-sm);
    }

    .process-step h4 {
        font-size: 16px;
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: var(--spacing-xs);
    }

    .process-step p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
    }

    /* Data Section */
    .data-strip {
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-md);
        justify-content: space-between;
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: var(--spacing-lg);
        position: relative;
        overflow: hidden;
    }

    .data-strip::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 2px;
        background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
    }

    .data-item {
        text-align: center;
        flex: 1;
        min-width: 120px;
        padding: 0 var(--spacing-sm);
    }

    .data-item .data-num {
        font-size: 32px;
        font-weight: 700;
        font-family: var(--font-num);
        color: var(--secondary);
        letter-spacing: 0.02em;
        line-height: 1.2;
        margin-bottom: 4px;
    }

    .data-item .data-label {
        font-size: 14px;
        color: var(--text-secondary);
    }

    /* FAQ */
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
    }

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

    .faq-item:hover {
        border-color: rgba(139, 92, 246, 0.3);
    }

    .faq-item.active {
        border-color: rgba(139, 92, 246, 0.5);
        box-shadow: var(--shadow-card);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm) var(--spacing-md);
        cursor: pointer;
        transition: all var(--transition-fast);
        user-select: none;
        -webkit-user-select: none;
        background: none;
        width: 100%;
        text-align: left;
    }

    .faq-question:hover {
        background: rgba(139, 92, 246, 0.05);
    }

    .faq-question span {
        font-size: 15px;
        font-weight: 500;
        color: var(--text-primary);
        flex: 1;
    }

    .faq-question .faq-icon {
        flex-shrink: 0;
        width: 28px;
        height: 28px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        color: var(--primary);
        border-radius: var(--radius-sm);
        background: rgba(139, 92, 246, 0.1);
        transition: all var(--transition-fast);
    }

    .faq-item.active .faq-question .faq-icon {
        transform: rotate(45deg);
        background: rgba(139, 92, 246, 0.2);
        color: var(--secondary);
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
        padding: 0 var(--spacing-md);
    }

    .faq-item.active .faq-answer {
        max-height: 500px;
        padding: 0 var(--spacing-md) var(--spacing-md);
    }

    .faq-answer p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.8;
    }

    /* CTA Section */
    .cta-section {
        background: linear-gradient(135deg, rgba(139, 92, 246, 0.12) 0%, rgba(236, 72, 153, 0.08) 50%, rgba(34, 211, 238, 0.06) 100%);
        border: 1px solid rgba(139, 92, 246, 0.2);
        border-radius: var(--radius-xl);
        padding: var(--spacing-xl) var(--spacing-lg);
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 80%;
        height: 1px;
        background: linear-gradient(90deg, transparent, var(--primary), var(--secondary), var(--accent), transparent);
    }

    .cta-section h2 {
        font-size: 26px;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: var(--spacing-sm);
        line-height: 1.3;
    }

    .cta-section p {
        font-size: 16px;
        color: var(--text-secondary);
        max-width: 560px;
        margin: 0 auto var(--spacing-md);
        line-height: 1.75;
    }

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

    /* Filter Bar */
    .filter-bar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: var(--spacing-sm);
        flex-wrap: wrap;
        padding: var(--spacing-sm) var(--spacing-md);
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        margin-bottom: var(--spacing-md);
    }

    .filter-group {
        display: flex;
        align-items: center;
        gap: var(--spacing-xs);
        flex-wrap: wrap;
    }

    .filter-group label {
        font-size: 13px;
        color: var(--text-muted);
        margin-right: 4px;
    }

    .filter-btn {
        padding: 6px 14px;
        border-radius: var(--radius-full);
        font-size: 13px;
        font-weight: 500;
        border: 1px solid var(--border-color);
        color: var(--text-secondary);
        transition: all var(--transition-fast);
        background: transparent;
    }

    .filter-btn:hover {
        border-color: rgba(139, 92, 246, 0.4);
        color: var(--text-primary);
    }

    .filter-btn.active {
        background: rgba(139, 92, 246, 0.15);
        border-color: var(--primary);
        color: var(--primary);
    }

    .sort-select {
        padding: 6px 12px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-color);
        background: var(--bg-surface-2);
        color: var(--text-secondary);
        font-size: 13px;
        cursor: pointer;
        transition: all var(--transition-fast);
    }

    .sort-select:focus {
        border-color: var(--primary);
        color: var(--text-primary);
    }

    /* Pagination */
    .pagination {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-xs);
        margin-top: var(--spacing-lg);
        flex-wrap: wrap;
    }

    .pagination a,
    .pagination span {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 36px;
        height: 36px;
        padding: 0 10px;
        border-radius: var(--radius-sm);
        font-size: 14px;
        font-weight: 500;
        border: 1px solid var(--border-color);
        color: var(--text-secondary);
        transition: all var(--transition-fast);
        background: var(--bg-surface);
    }

    .pagination a:hover {
        border-color: var(--primary);
        color: var(--primary);
        background: rgba(139, 92, 246, 0.08);
    }

    .pagination .current {
        background: var(--primary);
        border-color: var(--primary);
        color: #fff;
    }

    .pagination .disabled {
        opacity: 0.4;
        pointer-events: none;
    }

    /* Footer */
    .site-footer {
        background: var(--bg-footer);
        border-top: 1px solid var(--border-color);
        padding: var(--spacing-xl) 0 var(--spacing-md);
        position: relative;
        z-index: 1;
        margin-top: var(--spacing-xl);
    }

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

    .footer-brand h3 {
        font-size: 20px;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: var(--spacing-xs);
        letter-spacing: 0.04em;
    }

    .footer-brand p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
        max-width: 300px;
    }

    .footer-col h4 {
        font-size: 15px;
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: var(--spacing-sm);
        letter-spacing: 0.03em;
    }

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

    .footer-col ul li a {
        color: var(--text-secondary);
        font-size: 14px;
        transition: all var(--transition-fast);
    }

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

    .footer-bottom {
        border-top: 1px solid var(--border-color);
        padding-top: var(--spacing-md);
        display: flex;
        flex-direction: column;
        gap: var(--spacing-xs);
        align-items: center;
        text-align: center;
    }

    .footer-bottom .copyright {
        font-size: 14px;
        color: var(--text-muted);
    }

    .footer-bottom .legal-links {
        display: flex;
        align-items: center;
        gap: var(--spacing-xs);
        flex-wrap: wrap;
    }

    .footer-bottom .legal-links a {
        font-size: 13px;
        color: var(--text-muted);
        transition: color var(--transition-fast);
    }

    .footer-bottom .legal-links a:hover {
        color: var(--primary);
    }

    .footer-bottom .legal-links .separator {
        color: var(--border-color);
    }

    .footer-bottom .beian {
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
        flex-wrap: wrap;
        font-size: 13px;
        color: var(--text-muted);
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .cards-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .cards-grid-4 {
            grid-template-columns: repeat(2, 1fr);
        }
        .process-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-md);
        }
        .footer-brand {
            grid-column: 1 / -1;
        }
        .category-hero-content h1 {
            font-size: 30px;
        }
        .nav-search {
            max-width: 280px;
        }
    }

    @media (max-width: 768px) {
        :root {
            --spacing-xl: 40px;
            --spacing-lg: 28px;
            --spacing-md: 20px;
            --spacing-sm: 12px;
            --header-height: 60px;
        }
        .cards-grid,
        .cards-grid-2,
        .cards-grid-4,
        .process-grid {
            grid-template-columns: 1fr;
        }
        .nav-wrapper {
            gap: var(--spacing-sm);
            padding: 0 var(--spacing-sm);
        }
        .nav-logo a {
            font-size: 18px;
        }
        .nav-logo a .logo-icon {
            width: 28px;
            height: 28px;
            font-size: 14px;
        }
        .nav-search {
            display: none;
        }
        .nav-search.mobile-open {
            display: block;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            max-width: 100%;
            padding: var(--spacing-sm);
            background: rgba(13, 11, 20, 0.97);
            border-bottom: 1px solid var(--border-color);
            z-index: 98;
        }
        .nav-search.mobile-open input {
            width: 100%;
        }
        .nav-links {
            display: none;
        }
        .nav-toggle {
            display: flex;
        }
        .category-hero {
            padding: var(--spacing-lg) 0 var(--spacing-md);
        }
        .category-hero .container {
            gap: var(--spacing-md);
        }
        .category-hero-content h1 {
            font-size: 24px;
        }
        .category-hero-content .hero-desc {
            font-size: 15px;
        }
        .category-hero-stats {
            gap: var(--spacing-xs);
        }
        .hero-stat {
            padding: 8px 14px;
        }
        .hero-stat .stat-num {
            font-size: 16px;
        }
        .hero-stat .stat-label {
            font-size: 12px;
        }
        .section-title {
            font-size: 22px;
        }
        .section-subtitle {
            font-size: 15px;
        }
        .data-item .data-num {
            font-size: 24px;
        }
        .cta-section {
            padding: var(--spacing-lg) var(--spacing-md);
        }
        .cta-section h2 {
            font-size: 22px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: var(--spacing-sm);
        }
        .footer-brand {
            grid-column: auto;
        }
        .filter-bar {
            flex-direction: column;
            align-items: flex-start;
        }
        .value-card {
            padding: var(--spacing-sm);
        }
        .process-step {
            padding: var(--spacing-sm);
        }
        .process-step .step-number {
            font-size: 32px;
        }
        .guide-card .card-body h3 {
            font-size: 15px;
        }
        .btn {
            padding: 10px 18px;
            font-size: 14px;
        }
        .btn-sm {
            padding: 6px 12px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 12px 24px;
            font-size: 15px;
        }
    }

    @media (max-width: 520px) {
        .cards-grid,
        .cards-grid-2,
        .cards-grid-4,
        .process-grid {
            gap: var(--spacing-xs);
        }
        .category-hero-content h1 {
            font-size: 20px;
        }
        .hero-stat {
            padding: 6px 10px;
            gap: 6px;
        }
        .hero-stat .stat-num {
            font-size: 14px;
        }
        .hero-stat .stat-label {
            font-size: 11px;
        }
        .scenario-item {
            gap: var(--spacing-xs);
            padding: var(--spacing-sm);
        }
        .scenario-item .scenario-num {
            width: 28px;
            height: 28px;
            font-size: 13px;
        }
        .guide-card .card-body {
            padding: var(--spacing-xs) var(--spacing-sm) var(--spacing-sm);
        }
        .data-strip {
            flex-direction: column;
            gap: var(--spacing-sm);
            padding: var(--spacing-md);
        }
        .data-item {
            padding: 0;
        }
        .pagination a,
        .pagination span {
            min-width: 30px;
            height: 30px;
            font-size: 12px;
            padding: 0 6px;
        }
        .cta-section .cta-buttons {
            flex-direction: column;
            width: 100%;
        }
        .cta-section .cta-buttons .btn {
            width: 100%;
        }
    }

    /* Accessibility */
    .sr-only {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

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

    @media (prefers-reduced-motion: reduce) {
        *,
        *::before,
        *::after {
            animation-duration: 0.01ms !important;
            transition-duration: 0.01ms !important;
        }
        html {
            scroll-behavior: auto;
        }
    }

/* roulang page: category2 */
:root {
            --bg-primary: #0D0B14;
            --bg-surface: #1A1625;
            --bg-surface-2: #211C2F;
            --bg-footer: #08060D;
            --primary: #8B5CF6;
            --primary-hover: #7A4AE0;
            --secondary: #22D3EE;
            --accent: #EC4899;
            --accent-hover: #D43D86;
            --text-primary: #F5F3F7;
            --text-secondary: #A8A3B3;
            --text-muted: #6E6878;
            --border-color: #2E2938;
            --success: #34D399;
            --warning: #FBBF24;
            --danger: #F87171;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --shadow-card: 0 4px 16px rgba(139, 92, 246, 0.08);
            --shadow-card-hover: 0 8px 28px rgba(139, 92, 246, 0.16);
            --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.35);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-stack: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --font-num: 'Inter', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 45%, rgba(34, 211, 238, 0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 20% 70%, rgba(236, 72, 153, 0.04) 0%, transparent 50%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%238B5CF6' fill-opacity='0.04' fill-rule='evenodd'%3E%3Cpath d='M0 40L40 0h-8L0 32v8zm40 0V32L8 0H0l40 40z'/%3E%3C/g%3E%3C/svg%3E");
            pointer-events: none;
            z-index: 0;
        }

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

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

        a:hover {
            color: var(--primary-hover);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
        }

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

        button:disabled {
            opacity: 0.4;
            cursor: not-allowed;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            position: relative;
            z-index: 1;
        }

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

        .section-sm {
            padding: var(--spacing-lg) 0;
            position: relative;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 680px;
            margin-bottom: var(--spacing-lg);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-bottom: var(--spacing-xs);
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 11, 20, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(13, 11, 20, 0.96);
            border-bottom-color: rgba(139, 92, 246, 0.25);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: var(--spacing-md);
        }

        .nav-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.04em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--primary);
        }

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

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-surface-2);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-full);
            padding: 8px 16px;
            width: 380px;
            max-width: 40%;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            flex-shrink: 1;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.2);
        }

        .nav-search svg {
            width: 18px;
            height: 18px;
            color: var(--text-muted);
            flex-shrink: 0;
            margin-right: 10px;
        }

        .nav-search input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 14px;
            width: 100%;
            font-family: var(--font-stack);
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
        }

        .nav-links a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: var(--radius-full);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(139, 92, 246, 0.1);
        }

        .nav-links a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 2px 12px rgba(139, 92, 246, 0.3);
        }

        .mobile-toggle {
            display: none;
            flex-shrink: 0;
            color: var(--text-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
        }

        .mobile-toggle:hover {
            background: var(--bg-surface-2);
        }

        .mobile-toggle svg {
            width: 24px;
            height: 24px;
        }

        /* Category Hero */
        .category-hero {
            padding: var(--spacing-lg) 0 var(--spacing-md);
            border-bottom: 1px solid var(--border-color);
            background-image: radial-gradient(ellipse at 30% 20%, rgba(139, 92, 246, 0.08) 0%, transparent 55%);
        }

        .category-hero-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }

        .category-hero-text {
            flex: 1;
            min-width: 280px;
        }

        .category-hero h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }

        .category-hero h1 .highlight {
            color: var(--primary);
        }

        .category-hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        .category-stats {
            display: flex;
            gap: var(--spacing-lg);
            flex-shrink: 0;
            align-items: center;
        }

        .category-stat {
            text-align: center;
            padding: var(--spacing-sm) var(--spacing-md);
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            min-width: 100px;
        }

        .category-stat .stat-num {
            font-size: 28px;
            font-weight: 700;
            font-family: var(--font-num);
            color: var(--secondary);
            display: block;
            line-height: 1.2;
        }

        .category-stat .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Filter Bar */
        .filter-bar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            padding: var(--spacing-sm) 0;
            margin-bottom: var(--spacing-md);
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            white-space: nowrap;
            margin-right: 4px;
        }

        .filter-chip {
            font-size: 13px;
            color: var(--text-secondary);
            padding: 6px 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-full);
            background: var(--bg-surface);
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
            font-family: var(--font-stack);
        }

        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--text-primary);
        }

        .filter-chip.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 2px 12px rgba(139, 92, 246, 0.25);
        }

        .filter-chip.secondary-active {
            background: rgba(34, 211, 238, 0.12);
            border-color: var(--secondary);
            color: var(--secondary);
        }

        .sort-select {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-family: var(--font-stack);
            cursor: pointer;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%23A8A3B3' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }

        .sort-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.15);
        }

        /* Review List */
        .review-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
        }

        .review-card {
            display: flex;
            gap: var(--spacing-md);
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }

        .review-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .review-card-image {
            flex-shrink: 0;
            width: 160px;
            height: 120px;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-surface-2);
            position: relative;
        }

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

        .review-card:hover .review-card-image img {
            transform: scale(1.04);
        }

        .review-card-body {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }

        .review-tag {
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: rgba(34, 211, 238, 0.1);
            color: var(--secondary);
            white-space: nowrap;
        }

        .review-tag.primary-tag {
            background: rgba(139, 92, 246, 0.12);
            color: #B49CF5;
        }

        .review-tag.accent-tag {
            background: rgba(236, 72, 153, 0.12);
            color: #F58BC0;
        }

        .review-card h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .review-card h3 a {
            color: var(--text-primary);
        }

        .review-card h3 a:hover {
            color: var(--primary);
        }

        .review-card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .review-card-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .review-card-meta .date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .review-card-meta .rating {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--warning);
            font-weight: 600;
            font-family: var(--font-num);
        }

        .review-card-meta .rating svg {
            width: 14px;
            height: 14px;
            fill: var(--warning);
        }

        .btn-read-more {
            font-size: 13px;
            font-weight: 500;
            color: var(--secondary);
            padding: 6px 16px;
            border: 1px solid rgba(34, 211, 238, 0.3);
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .btn-read-more:hover {
            background: rgba(34, 211, 238, 0.12);
            color: var(--secondary);
            border-color: var(--secondary);
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: var(--spacing-md) 0;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 10px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            font-family: var(--font-num);
        }

        .pagination a {
            color: var(--text-secondary);
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
        }

        .pagination a:hover {
            color: var(--text-primary);
            border-color: var(--primary);
            background: rgba(139, 92, 246, 0.08);
        }

        .pagination .current {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            box-shadow: 0 2px 12px rgba(139, 92, 246, 0.25);
        }

        .pagination .disabled {
            color: var(--text-muted);
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            opacity: 0.5;
            pointer-events: none;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: var(--spacing-lg);
            margin: var(--spacing-md) 0 var(--spacing-xl);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

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

        .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .cta-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            padding: 12px 28px;
            border-radius: var(--radius-md);
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .btn-cta:hover {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: 0 4px 20px rgba(236, 72, 153, 0.35);
        }

        .btn-primary-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: #fff;
            background: var(--primary);
            padding: 10px 20px;
            border-radius: var(--radius-md);
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary-sm:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-color);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-lg);
        }

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

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

        .footer-brand h3 span {
            color: var(--primary);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

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

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

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom .copyright {
            font-weight: 500;
            color: var(--text-secondary);
        }

        .footer-bottom .legal-links {
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .footer-bottom .legal-links a {
            color: var(--text-muted);
            font-size: 13px;
        }

        .footer-bottom .legal-links a:hover {
            color: var(--primary);
        }

        .footer-bottom .separator {
            color: var(--text-muted);
        }

        .footer-bottom .beian {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }

        /* Mobile Nav */
        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: var(--spacing-sm) 0;
            border-top: 1px solid var(--border-color);
            background: rgba(13, 11, 20, 0.98);
        }

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

        .mobile-nav a {
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 16px;
            border-radius: var(--radius-md);
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .mobile-nav a:hover {
            color: var(--text-primary);
            background: rgba(139, 92, 246, 0.08);
        }

        .mobile-nav a.active {
            color: #fff;
            background: var(--primary);
        }

        .mobile-nav .mobile-search {
            margin: var(--spacing-xs) var(--spacing-sm);
            display: flex;
            align-items: center;
            background: var(--bg-surface-2);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-full);
            padding: 10px 16px;
        }

        .mobile-nav .mobile-search svg {
            width: 16px;
            height: 16px;
            color: var(--text-muted);
            margin-right: 8px;
            flex-shrink: 0;
        }

        .mobile-nav .mobile-search input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 14px;
            width: 100%;
            font-family: var(--font-stack);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-search {
                width: 260px;
                max-width: 30%;
            }

            .nav-links a {
                padding: 6px 10px;
                font-size: 13px;
            }

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

            .category-hero h1 {
                font-size: 30px;
            }

            .category-stats {
                gap: var(--spacing-sm);
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
                --spacing-xl: 40px;
                --spacing-lg: 28px;
                --spacing-md: 16px;
            }

            body {
                font-size: 15px;
            }

            .container {
                padding: 0 var(--spacing-sm);
            }

            .nav-search {
                display: none;
            }

            .nav-links {
                display: none;
            }

            .mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .category-hero-desc {
                font-size: 14px;
            }

            .category-stats {
                width: 100%;
                justify-content: flex-start;
            }

            .category-stat {
                min-width: 80px;
                padding: var(--spacing-xs) var(--spacing-sm);
            }

            .category-stat .stat-num {
                font-size: 22px;
            }

            .review-card {
                flex-direction: column;
                padding: var(--spacing-sm);
            }

            .review-card-image {
                width: 100%;
                height: 180px;
            }

            .review-card h3 {
                font-size: 16px;
            }

            .review-card-excerpt {
                -webkit-line-clamp: 3;
            }

            .filter-bar {
                gap: 8px;
            }

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .footer-bottom .legal-links {
                flex-wrap: wrap;
            }
        }

        @media (max-width: 520px) {
            .category-hero {
                padding: var(--spacing-md) 0;
            }

            .category-hero h1 {
                font-size: 22px;
            }

            .category-stats {
                flex-wrap: wrap;
                gap: 8px;
            }

            .category-stat {
                flex: 1;
                min-width: 70px;
            }

            .filter-chip {
                font-size: 12px;
                padding: 5px 10px;
            }

            .sort-select {
                font-size: 12px;
                padding: 5px 10px;
                padding-right: 28px;
            }

            .review-card-image {
                height: 150px;
            }

            .pagination a,
            .pagination span {
                min-width: 30px;
                height: 30px;
                font-size: 12px;
                padding: 0 6px;
            }

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

            .footer-bottom {
                font-size: 12px;
            }

            .footer-bottom .beian {
                font-size: 11px;
                gap: 6px;
            }
        }

/* roulang page: category3 */
:root {
 --bg-primary: #0D0B14;
 --bg-surface: #1A1625;
 --bg-surface-2: #211C2F;
 --bg-footer: #08060D;
 --primary: #8B5CF6;
 --primary-hover: #7A4AE0;
 --secondary: #22D3EE;
 --accent: #EC4899;
 --accent-hover: #D43D86;
 --text-primary: #F5F3F7;
 --text-secondary: #A8A3B3;
 --text-muted: #6E6878;
 --border-color: #2E2938;
 --success: #34D399;
 --warning: #FBBF24;
 --danger: #F87171;
 --radius-sm: 6px;
 --radius-md: 10px;
 --radius-lg: 14px;
 --radius-xl: 20px;
 --radius-full: 999px;
 --shadow-card: 0 4px 16px rgba(139, 92, 246, 0.08);
 --shadow-card-hover: 0 8px 28px rgba(139, 92, 246, 0.16);
 --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.35);
 --transition-fast: 0.2s ease;
 --transition-base: 0.3s ease;
 --font-stack: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
 --font-num: 'Inter', system-ui, -apple-system, sans-serif;
 --container-max: 1200px;
 --header-height: 72px;
 --spacing-xs: 8px;
 --spacing-sm: 16px;
 --spacing-md: 24px;
 --spacing-lg: 40px;
 --spacing-xl: 64px;
 --spacing-2xl: 96px;
 }

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

 html {
 scroll-behavior: smooth;
 -webkit-text-size-adjust: 100%;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
 }

 body {
 font-family: var(--font-stack);
 font-size: 16px;
 font-weight: 400;
 line-height: 1.75;
 color: var(--text-primary);
 background-color: var(--bg-primary);
 background-image:
 radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.06) 0%, transparent 60%),
 radial-gradient(ellipse at 80% 45%, rgba(34, 211, 238, 0.04) 0%, transparent 55%),
 radial-gradient(ellipse at 20% 70%, rgba(236, 72, 153, 0.04) 0%, transparent 50%);
 background-attachment: fixed;
 min-height: 100vh;
 overflow-x: hidden;
 }

 body::before {
 content: '';
 position: fixed;
 top: 0;
 left: 0;
 right: 0;
 bottom: 0;
 background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%238B5CF6' fill-opacity='0.04' fill-rule='evenodd'%3E%3Cpath d='M0 40L40 0h-8L0 32v8zm40 0V32L8 0H0l40 40z'/%3E%3C/g%3E%3C/svg%3E");
 pointer-events: none;
 z-index: 0;
 }

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

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

 a:hover {
 color: var(--primary-hover);
 }

 button,
 input,
 select,
 textarea {
 font-family: inherit;
 font-size: inherit;
 line-height: inherit;
 outline: none;
 }

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

 button:disabled {
 opacity: 0.4;
 cursor: not-allowed;
 }

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

 .container {
 max-width: var(--container-max);
 margin: 0 auto;
 padding: 0 var(--spacing-md);
 position: relative;
 z-index: 1;
 }

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

 .section-sm {
 padding: var(--spacing-lg) 0;
 position: relative;
 }

 .section-title {
 font-size: 28px;
 font-weight: 700;
 color: var(--text-primary);
 line-height: 1.35;
 margin-bottom: var(--spacing-sm);
 letter-spacing: 0.02em;
 }

 .section-subtitle {
 font-size: 16px;
 color: var(--text-secondary);
 line-height: 1.75;
 max-width: 680px;
 margin-bottom: var(--spacing-lg);
 }

 .section-label {
 display: inline-block;
 font-size: 13px;
 font-weight: 600;
 color: var(--secondary);
 text-transform: uppercase;
 letter-spacing: 0.12em;
 margin-bottom: var(--spacing-xs);
 }

 /* Header & Navigation */
 .site-header {
 position: sticky;
 top: 0;
 z-index: 100;
 background: rgba(13, 11, 20, 0.88);
 backdrop-filter: blur(18px);
 -webkit-backdrop-filter: blur(18px);
 border-bottom: 1px solid var(--border-color);
 transition: background var(--transition-base), border-color var(--transition-base);
 }

 .site-header.scrolled {
 background: rgba(13, 11, 20, 0.96);
 border-bottom-color: rgba(139, 92, 246, 0.25);
 box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
 }

 .nav-wrapper {
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: var(--spacing-md);
 height: var(--header-height);
 }

 .logo {
 font-size: 22px;
 font-weight: 700;
 color: var(--text-primary);
 letter-spacing: 0.02em;
 display: flex;
 align-items: center;
 gap: var(--spacing-xs);
 white-space: nowrap;
 }

 .logo .logo-ico {
 width: 32px;
 height: 32px;
 border-radius: var(--radius-md);
 background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
 display: inline-flex;
 align-items: center;
 justify-content: center;
 font-size: 16px;
 font-weight: 700;
 color: #fff;
 flex-shrink: 0;
 }

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

 .search-box {
 flex: 1;
 max-width: 400px;
 min-width: 200px;
 position: relative;
 }

 .search-box input {
 width: 100%;
 height: 40px;
 background: var(--bg-surface-2);
 border: 1px solid var(--border-color);
 border-radius: var(--radius-full);
 padding: 0 16px 0 42px;
 color: var(--text-primary);
 font-size: 14px;
 transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
 }

 .search-box input:focus {
 border-color: var(--primary);
 box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
 }

 .search-box .search-icon {
 position: absolute;
 left: 14px;
 top: 50%;
 transform: translateY(-50%);
 width: 18px;
 height: 18px;
 color: var(--text-muted);
 pointer-events: none;
 }

 .nav-links {
 display: flex;
 align-items: center;
 gap: var(--spacing-sm);
 list-style: none;
 }

 .nav-links a {
 display: block;
 padding: 8px 14px;
 font-size: 14px;
 font-weight: 500;
 color: var(--text-secondary);
 border-radius: var(--radius-sm);
 transition: color var(--transition-fast), background-color var(--transition-fast);
 white-space: nowrap;
 }

 .nav-links a:hover {
 color: var(--text-primary);
 background: rgba(139, 92, 246, 0.1);
 }

 .nav-links a.active {
 color: var(--primary);
 background: rgba(139, 92, 246, 0.14);
 font-weight: 600;
 }

 .mobile-search-btn {
 display: none;
 background: none;
 border: none;
 color: var(--text-secondary);
 padding: 8px;
 border-radius: var(--radius-sm);
 transition: color var(--transition-fast), background-color var(--transition-fast);
 }

 .mobile-search-btn:hover {
 color: var(--text-primary);
 background: rgba(139, 92, 246, 0.1);
 }

 /* Category Page Hero */
 .category-hero {
 position: relative;
 padding: var(--spacing-xl) 0 var(--spacing-lg);
 overflow: hidden;
 }

 .category-hero::before {
 content: '';
 position: absolute;
 top: 0;
 left: 0;
 right: 0;
 height: 400px;
 background: linear-gradient(180deg, rgba(139, 92, 246, 0.12) 0%, transparent 100%);
 pointer-events: none;
 }

 .category-hero-grid {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: var(--spacing-xl);
 align-items: center;
 }

 .category-hero-content h1 {
 font-size: 36px;
 font-weight: 700;
 color: var(--text-primary);
 line-height: 1.25;
 margin-bottom: var(--spacing-sm);
 letter-spacing: 0.01em;
 }

 .category-hero-content .hero-sub {
 font-size: 17px;
 color: var(--text-secondary);
 line-height: 1.8;
 margin-bottom: var(--spacing-lg);
 max-width: 560px;
 }

 .category-hero-image {
 position: relative;
 border-radius: var(--radius-xl);
 overflow: hidden;
 aspect-ratio: 16/10;
 background: var(--bg-surface-2);
 border: 1px solid var(--border-color);
 }

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

 .category-hero-image::after {
 content: '';
 position: absolute;
 top: 0;
 left: 0;
 right: 0;
 bottom: 0;
 background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, transparent 50%, rgba(34, 211, 238, 0.15) 100%);
 pointer-events: none;
 border-radius: var(--radius-xl);
 }

 .hero-tags {
 display: flex;
 flex-wrap: wrap;
 gap: var(--spacing-xs);
 margin-bottom: var(--spacing-md);
 }

 .hero-tag {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 padding: 5px 12px;
 font-size: 12px;
 font-weight: 500;
 background: rgba(34, 211, 238, 0.1);
 color: var(--secondary);
 border: 1px solid rgba(34, 211, 238, 0.25);
 border-radius: var(--radius-full);
 }

 .btn-group {
 display: flex;
 flex-wrap: wrap;
 gap: var(--spacing-sm);
 }

 .btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 8px;
 padding: 12px 24px;
 font-size: 15px;
 font-weight: 500;
 border-radius: var(--radius-md);
 transition: all var(--transition-fast);
 text-decoration: none;
 line-height: 1.5;
 }

 .btn-primary {
 background: var(--primary);
 color: #fff;
 border: 1px solid var(--primary);
 }

 .btn-primary:hover {
 background: var(--primary-hover);
 border-color: var(--primary-hover);
 color: #fff;
 box-shadow: var(--shadow-glow);
 transform: translateY(-1px);
 }

 .btn-accent {
 background: var(--accent);
 color: #fff;
 border: 1px solid var(--accent);
 }

 .btn-accent:hover {
 background: var(--accent-hover);
 border-color: var(--accent-hover);
 color: #fff;
 box-shadow: 0 0 20px rgba(236, 72, 153, 0.35);
 transform: translateY(-1px);
 }

 .btn-secondary {
 background: transparent;
 color: var(--secondary);
 border: 1px solid var(--secondary);
 }

 .btn-secondary:hover {
 background: rgba(34, 211, 238, 0.1);
 color: var(--secondary);
 border-color: var(--secondary);
 transform: translateY(-1px);
 }

 /* Feature Grid */
 .features-grid {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 gap: var(--spacing-md);
 margin-top: var(--spacing-lg);
 }

 .feature-card {
 background: var(--bg-surface);
 border: 1px solid var(--border-color);
 border-radius: var(--radius-lg);
 padding: var(--spacing-md);
 transition: all var(--transition-fast);
 position: relative;
 overflow: hidden;
 }

 .feature-card::before {
 content: '';
 position: absolute;
 top: 0;
 left: 0;
 width: 4px;
 height: 100%;
 background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
 opacity: 0;
 transition: opacity var(--transition-fast);
 }

 .feature-card:hover {
 border-color: rgba(139, 92, 246, 0.5);
 box-shadow: var(--shadow-card-hover);
 transform: translateY(-4px);
 }

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

 .feature-icon {
 width: 44px;
 height: 44px;
 border-radius: var(--radius-md);
 background: rgba(139, 92, 246, 0.12);
 display: flex;
 align-items: center;
 justify-content: center;
 margin-bottom: var(--spacing-sm);
 font-size: 20px;
 }

 .feature-card h3 {
 font-size: 17px;
 font-weight: 600;
 color: var(--text-primary);
 margin-bottom: var(--spacing-xs);
 }

 .feature-card p {
 font-size: 14px;
 color: var(--text-secondary);
 line-height: 1.7;
 }

 /* Stats Bar */
 .stats-bar {
 background: var(--bg-surface);
 border: 1px solid var(--border-color);
 border-radius: var(--radius-lg);
 padding: var(--spacing-md) var(--spacing-lg);
 display: flex;
 justify-content: space-around;
 flex-wrap: wrap;
 gap: var(--spacing-md);
 margin: var(--spacing-lg) 0;
 }

 .stat-item {
 text-align: center;
 min-width: 120px;
 }

 .stat-num {
 font-family: var(--font-num);
 font-size: 32px;
 font-weight: 700;
 color: var(--secondary);
 line-height: 1.2;
 }

 .stat-label {
 font-size: 13px;
 color: var(--text-secondary);
 margin-top: 4px;
 }

 /* Tournament Coverage */
 .tournament-grid {
 display: grid;
 grid-template-columns: repeat(2, 1fr);
 gap: var(--spacing-md);
 }

 .tournament-card {
 background: var(--bg-surface);
 border: 1px solid var(--border-color);
 border-radius: var(--radius-lg);
 padding: var(--spacing-md);
 display: flex;
 gap: var(--spacing-sm);
 align-items: flex-start;
 transition: all var(--transition-fast);
 }

 .tournament-card:hover {
 border-color: rgba(34, 211, 238, 0.5);
 box-shadow: var(--shadow-card);
 transform: translateY(-2px);
 }

 .tournament-badge {
 width: 52px;
 height: 52px;
 border-radius: var(--radius-md);
 background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(34, 211, 238, 0.2) 100%);
 display: flex;
 align-items: center;
 justify-content: center;
 font-size: 22px;
 flex-shrink: 0;
 }

 .tournament-card h3 {
 font-size: 16px;
 font-weight: 600;
 color: var(--text-primary);
 margin-bottom: 4px;
 }

 .tournament-card p {
 font-size: 13px;
 color: var(--text-secondary);
 line-height: 1.6;
 }

 /* Process / Steps */
 .process-grid {
 display: grid;
 grid-template-columns: repeat(4, 1fr);
 gap: var(--spacing-md);
 }

 .process-step {
 background: var(--bg-surface);
 border: 1px solid var(--border-color);
 border-radius: var(--radius-lg);
 padding: var(--spacing-md);
 text-align: center;
 position: relative;
 transition: all var(--transition-fast);
 }

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

 .step-num {
 width: 40px;
 height: 40px;
 border-radius: var(--radius-full);
 background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
 color: #fff;
 font-weight: 700;
 font-size: 16px;
 display: flex;
 align-items: center;
 justify-content: center;
 margin: 0 auto var(--spacing-sm);
 }

 .process-step h3 {
 font-size: 15px;
 font-weight: 600;
 color: var(--text-primary);
 margin-bottom: 6px;
 }

 .process-step p {
 font-size: 13px;
 color: var(--text-secondary);
 line-height: 1.6;
 }

 /* Scenario Cards */
 .scenario-grid {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 gap: var(--spacing-md);
 }

 .scenario-card {
 background: var(--bg-surface-2);
 border: 1px solid var(--border-color);
 border-radius: var(--radius-lg);
 padding: var(--spacing-md);
 transition: all var(--transition-fast);
 }

 .scenario-card:hover {
 border-color: rgba(236, 72, 153, 0.5);
 box-shadow: var(--shadow-card-hover);
 transform: translateY(-3px);
 }

 .scenario-card h3 {
 font-size: 16px;
 font-weight: 600;
 color: var(--text-primary);
 margin-bottom: var(--spacing-xs);
 display: flex;
 align-items: center;
 gap: 8px;
 }

 .scenario-card p {
 font-size: 14px;
 color: var(--text-secondary);
 line-height: 1.7;
 }

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

 .faq-item {
 background: var(--bg-surface);
 border: 1px solid var(--border-color);
 border-radius: var(--radius-md);
 margin-bottom: var(--spacing-sm);
 overflow: hidden;
 transition: all var(--transition-fast);
 }

 .faq-item:hover {
 border-color: rgba(139, 92, 246, 0.4);
 }

 .faq-question {
 width: 100%;
 padding: var(--spacing-sm) var(--spacing-md);
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: var(--spacing-sm);
 font-size: 15px;
 font-weight: 600;
 color: var(--text-primary);
 text-align: left;
 background: none;
 border: none;
 transition: color var(--transition-fast);
 }

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

 .faq-question .faq-icon {
 width: 20px;
 height: 20px;
 flex-shrink: 0;
 color: var(--text-muted);
 transition: transform var(--transition-fast);
 }

 .faq-answer {
 padding: 0 var(--spacing-md) var(--spacing-sm);
 font-size: 14px;
 color: var(--text-secondary);
 line-height: 1.7;
 display: none;
 }

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

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

 /* CTA Section */
 .cta-section {
 background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(34, 211, 238, 0.1) 50%, rgba(236, 72, 153, 0.1) 100%);
 border: 1px solid var(--border-color);
 border-radius: var(--radius-xl);
 padding: var(--spacing-xl) var(--spacing-lg);
 text-align: center;
 margin: var(--spacing-xl) 0;
 }

 .cta-section h2 {
 font-size: 28px;
 font-weight: 700;
 color: var(--text-primary);
 margin-bottom: var(--spacing-sm);
 }

 .cta-section p {
 font-size: 16px;
 color: var(--text-secondary);
 max-width: 600px;
 margin: 0 auto var(--spacing-md);
 line-height: 1.75;
 }

 /* Footer */
 .site-footer {
 background: var(--bg-footer);
 border-top: 1px solid var(--border-color);
 padding: var(--spacing-lg) 0 var(--spacing-md);
 position: relative;
 z-index: 1;
 }

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

 .footer-brand h3 {
 font-size: 20px;
 font-weight: 700;
 color: var(--text-primary);
 margin-bottom: var(--spacing-xs);
 }

 .footer-brand p {
 font-size: 13px;
 color: var(--text-secondary);
 line-height: 1.7;
 max-width: 320px;
 }

 .footer-col h4 {
 font-size: 14px;
 font-weight: 600;
 color: var(--text-primary);
 margin-bottom: var(--spacing-sm);
 }

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

 .footer-col ul li {
 margin-bottom: var(--spacing-xs);
 }

 .footer-col ul li a {
 font-size: 13px;
 color: var(--text-secondary);
 transition: color var(--transition-fast);
 }

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

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

 .copyright {
 font-size: 13px;
 color: var(--text-muted);
 }

 .legal-links a {
 font-size: 13px;
 color: var(--text-secondary);
 }

 .legal-links a:hover {
 color: var(--primary);
 }

 .legal-links .separator {
 margin: 0 8px;
 color: var(--text-muted);
 }

 .beian {
 display: flex;
 flex-wrap: wrap;
 gap: var(--spacing-sm);
 font-size: 12px;
 color: var(--text-muted);
 }

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

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

 .category-hero-grid {
 gap: var(--spacing-lg);
 }

 .category-hero-content h1 {
 font-size: 30px;
 }
 }

 @media (max-width: 768px) {
 .nav-wrapper {
 gap: var(--spacing-sm);
 }

 .search-box {
 display: none;
 }

 .mobile-search-btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 }

 .nav-links {
 gap: 2px;
 }

 .nav-links a {
 padding: 8px 10px;
 font-size: 13px;
 }

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

 .category-hero-content h1 {
 font-size: 26px;
 }

 .category-hero-content .hero-sub {
 font-size: 15px;
 }

 .features-grid,
 .scenario-grid,
 .tournament-grid,
 .process-grid {
 grid-template-columns: 1fr;
 }

 .stats-bar {
 flex-wrap: wrap;
 }

 .stat-item {
 min-width: 80px;
 }

 .stat-num {
 font-size: 24px;
 }

 .cta-section h2 {
 font-size: 22px;
 }

 .section-title {
 font-size: 22px;
 }

 .btn-group {
 flex-direction: column;
 align-items: center;
 }

 .btn-group .btn {
 width: 100%;
 max-width: 280px;
 }

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

 .footer-bottom {
 flex-direction: column;
 align-items: flex-start;
 gap: var(--spacing-xs);
 }

 .nav-links a {
 padding: 6px 8px;
 font-size: 12px;
 }
 }

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

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

 .category-hero {
 padding: var(--spacing-lg) 0;
 }

 .category-hero-content h1 {
 font-size: 22px;
 }

 .logo {
 font-size: 18px;
 }

 .logo .logo-ico {
 width: 28px;
 height: 28px;
 font-size: 13px;
 }

 .section-title {
 font-size: 20px;
 }

 .nav-links a {
 padding: 6px;
 font-size: 11px;
 }

 .stat-num {
 font-size: 20px;
 }

 .cta-section {
 padding: var(--spacing-lg) var(--spacing-md);
 }

 .beian {
 flex-direction: column;
 gap: 4px;
 }
 }

/* roulang page: category4 */
:root {
            --bg-primary: #0D0B14;
            --bg-surface: #1A1625;
            --bg-surface-2: #211C2F;
            --bg-footer: #08060D;
            --primary: #8B5CF6;
            --primary-hover: #7A4AE0;
            --secondary: #22D3EE;
            --accent: #EC4899;
            --accent-hover: #D43D86;
            --text-primary: #F5F3F7;
            --text-secondary: #A8A3B3;
            --text-muted: #6E6878;
            --border-color: #2E2938;
            --success: #34D399;
            --warning: #FBBF24;
            --danger: #F87171;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 14px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --shadow-card: 0 4px 16px rgba(139, 92, 246, 0.08);
            --shadow-card-hover: 0 8px 28px rgba(139, 92, 246, 0.16);
            --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.35);
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-stack: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --font-num: 'Inter', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 96px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            background-image:
                radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 45%, rgba(34, 211, 238, 0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 20% 70%, rgba(236, 72, 153, 0.04) 0%, transparent 50%);
            background-attachment: fixed;
            min-height: 100vh;
            overflow-x: hidden;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%238B5CF6' fill-opacity='0.04' fill-rule='evenodd'%3E%3Cpath d='M0 40L40 0h-8L0 32v8zm40 0V32L8 0H0l40 40z'/%3E%3C/g%3E%3C/svg%3E");
            pointer-events: none;
            z-index: 0;
        }

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

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

        a:hover {
            color: var(--primary-hover);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
        }

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

        button:disabled {
            opacity: 0.4;
            cursor: not-allowed;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            position: relative;
            z-index: 1;
        }

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

        .section-sm {
            padding: var(--spacing-lg) 0;
            position: relative;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 680px;
            margin-bottom: var(--spacing-lg);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-bottom: var(--spacing-xs);
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 11, 20, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(13, 11, 20, 0.96);
            border-bottom-color: rgba(139, 92, 246, 0.25);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: var(--spacing-md);
            position: relative;
        }

        .nav-brand {
            flex-shrink: 0;
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }

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

        .nav-brand .brand-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            font-weight: 700;
        }

        .nav-search {
            flex: 1;
            max-width: 400px;
            min-width: 200px;
            margin: 0 auto;
            position: relative;
        }

        .nav-search input {
            width: 100%;
            height: 42px;
            background: var(--bg-surface-2);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-full);
            padding: 0 16px 0 42px;
            color: var(--text-primary);
            font-size: 14px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .nav-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 12px rgba(139, 92, 246, 0.4);
        }

        .nav-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            pointer-events: none;
            display: flex;
            align-items: center;
        }

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

        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 14px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(139, 92, 246, 0.1);
        }

        .nav-links a.active {
            color: #fff;
            background: var(--primary);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            background: var(--bg-surface);
            color: var(--text-primary);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
            flex-shrink: 0;
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .nav-menu-overlay {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(13, 11, 20, 0.96);
            z-index: 99;
            padding: var(--spacing-lg) var(--spacing-md);
            flex-direction: column;
            gap: var(--spacing-xs);
            overflow-y: auto;
        }

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

        .nav-menu-overlay a {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            padding: var(--spacing-sm) var(--spacing-md);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .nav-menu-overlay a:hover {
            background: rgba(139, 92, 246, 0.1);
            color: var(--primary);
        }

        .nav-menu-overlay a.active {
            background: var(--primary);
            color: #fff;
        }

        /* Category Hero */
        .cate-hero {
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            position: relative;
            overflow: hidden;
        }

        .cate-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cate-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cate-hero-content .cate-badge {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.25);
            padding: 4px 14px;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.06em;
        }

        .cate-hero-content h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: var(--spacing-sm);
        }

        .cate-hero-content h1 .highlight {
            color: var(--secondary);
        }

        .cate-hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: var(--spacing-md);
            max-width: 540px;
        }

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

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

        .cate-hero-stat .stat-number {
            font-family: var(--font-num);
            font-size: 24px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.3;
        }

        .cate-hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        .cate-hero-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-color);
            background: var(--bg-surface);
            box-shadow: var(--shadow-card);
            min-height: 280px;
        }

        .cate-hero-visual img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            border-radius: var(--radius-xl);
        }

        .cate-hero-visual .overlay-tag {
            position: absolute;
            bottom: var(--spacing-sm);
            left: var(--spacing-sm);
            background: rgba(13, 11, 20, 0.85);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(139, 92, 246, 0.4);
            color: var(--text-primary);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 500;
        }

        /* Filter Bar */
        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: var(--spacing-lg);
        }

        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-xs);
        }

        .filter-tags .filter-tag {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-color);
            background: transparent;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-tags .filter-tag:hover {
            border-color: var(--primary);
            color: var(--text-primary);
            background: rgba(139, 92, 246, 0.08);
        }

        .filter-tags .filter-tag.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .sort-options {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            flex-shrink: 0;
        }

        .sort-options span {
            font-size: 13px;
            color: var(--text-muted);
            margin-right: 4px;
        }

        .sort-options .sort-btn {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 14px;
            border-radius: var(--radius-full);
            border: 1px solid transparent;
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .sort-options .sort-btn:hover {
            color: var(--text-primary);
        }

        .sort-options .sort-btn.active {
            color: var(--secondary);
            border-color: rgba(34, 211, 238, 0.3);
            background: rgba(34, 211, 238, 0.08);
        }

        /* Article List */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

        .article-card {
            display: grid;
            grid-template-columns: 220px 1fr;
            gap: var(--spacing-md);
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .article-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .article-cover {
            position: relative;
            overflow: hidden;
            background: var(--bg-surface-2);
            min-height: 100%;
        }

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

        .article-card:hover .article-cover img {
            transform: scale(1.04);
        }

        .article-cover .cover-badge {
            position: absolute;
            top: var(--spacing-xs);
            left: var(--spacing-xs);
            background: rgba(13, 11, 20, 0.8);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(34, 211, 238, 0.3);
            color: var(--secondary);
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 600;
        }

        .article-content {
            padding: var(--spacing-md);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 13px;
            color: var(--text-muted);
        }

        .article-meta .date {
            font-family: var(--font-num);
        }

        .article-meta .tag-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--secondary);
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.2);
            padding: 2px 10px;
            border-radius: var(--radius-full);
        }

        .article-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.45;
            margin: 0;
        }

        .article-title a {
            color: inherit;
            transition: color var(--transition-fast);
        }

        .article-title a:hover {
            color: var(--primary);
        }

        .article-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .article-readmore {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
        }

        .article-readmore:hover {
            color: var(--secondary);
            gap: 8px;
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-xs);
            padding: var(--spacing-lg) 0 var(--spacing-sm);
        }

        .pagination .page-btn {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            background: var(--bg-surface);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .pagination .page-btn:hover {
            border-color: var(--primary);
            color: var(--text-primary);
            background: rgba(139, 92, 246, 0.08);
        }

        .pagination .page-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .pagination .page-btn.disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }

        /* Data Strip */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            padding: var(--spacing-lg) 0;
        }

        .data-strip .data-item {
            text-align: center;
            padding: var(--spacing-md);
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            transition: all var(--transition-fast);
        }

        .data-strip .data-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
        }

        .data-strip .data-number {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .data-strip .data-label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* Deep Content */
        .deep-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .deep-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            line-height: 1.4;
        }

        .deep-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: var(--spacing-md) 0 var(--spacing-xs);
            line-height: 1.5;
        }

        .deep-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: var(--spacing-sm);
        }

        /* FAQ Section */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(139, 92, 246, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            padding: var(--spacing-md);
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            text-align: left;
            width: 100%;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(139, 92, 246, 0.1);
            border: 1px solid rgba(139, 92, 246, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            transition: all var(--transition-fast);
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 var(--spacing-md);
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 var(--spacing-md) var(--spacing-md);
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* CTA Section */
        .cta-section {
            padding: var(--spacing-xl) 0;
            position: relative;
            overflow: hidden;
        }

        .cta-box {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(34, 211, 238, 0.08) 50%, rgba(236, 72, 153, 0.1) 100%);
            border: 1px solid rgba(139, 92, 246, 0.3);
            border-radius: var(--radius-xl);
            padding: var(--spacing-xl) var(--spacing-lg);
            text-align: center;
            position: relative;
        }

        .cta-box h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

        .cta-box p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto var(--spacing-lg);
            line-height: 1.75;
        }

        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid var(--secondary);
            color: var(--secondary);
        }

        .btn-secondary:hover {
            background: rgba(34, 211, 238, 0.1);
            color: var(--secondary);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(236, 72, 153, 0.4);
        }

        /* Buttons */
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(139, 92, 246, 0.05);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-color);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            position: relative;
            z-index: 1;
        }

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

        .footer-brand h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: var(--spacing-md);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
            align-items: center;
            text-align: center;
        }

        .footer-bottom .copyright {
            font-size: 14px;
            color: var(--text-muted);
        }

        .footer-bottom .legal-links {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 14px;
        }

        .footer-bottom .legal-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-bottom .legal-links a:hover {
            color: var(--primary);
        }

        .footer-bottom .legal-links .separator {
            color: var(--text-muted);
        }

        .footer-bottom .beian {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            justify-content: center;
        }

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

            .footer-grid .footer-col:last-child {
                grid-column: span 2;
            }

            .article-card {
                grid-template-columns: 180px 1fr;
            }
        }

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

            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

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

            .cate-hero-content h1 {
                font-size: 26px;
            }

            .cate-hero-visual {
                min-height: 200px;
            }

            .cate-hero-visual img {
                height: 200px;
            }

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

            .article-cover {
                min-height: 180px;
                max-height: 180px;
            }

            .article-cover img {
                height: 180px;
            }

            .article-content {
                padding: var(--spacing-sm);
            }

            .article-title {
                font-size: 16px;
            }

            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }

            .data-strip .data-number {
                font-size: 24px;
            }

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

            .footer-grid .footer-col:last-child {
                grid-column: auto;
            }

            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }

            .sort-options {
                width: 100%;
                overflow-x: auto;
                padding-bottom: var(--spacing-xs);
            }

            .section-title {
                font-size: 22px;
            }

            .cta-box {
                padding: var(--spacing-lg) var(--spacing-md);
            }

            .cta-box h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --spacing-xl: 40px;
                --spacing-lg: 28px;
                --spacing-md: 16px;
                --spacing-sm: 12px;
            }

            .container {
                padding: 0 var(--spacing-sm);
            }

            .cate-hero-content h1 {
                font-size: 22px;
            }

            .cate-hero-desc {
                font-size: 14px;
            }

            .data-strip .data-number {
                font-size: 20px;
            }

            .data-strip .data-item {
                padding: var(--spacing-sm);
            }

            .btn {
                padding: 10px 18px;
                font-size: 13px;
                width: 100%;
            }

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