/* roulang page: index */
:root {
            --primary: #1B6EC2;
            --primary-dark: #155A8A;
            --primary-light: #3D8BD4;
            --secondary: #2C3E50;
            --accent: #E8F0FE;
            --accent-light: #F0F5FC;
            --bg: #FFFFFF;
            --card-bg: #F8FAFD;
            --bg-alt: #F5F7FA;
            --bg-warm: #FAFBFC;
            --text: #2C3E50;
            --text-heading: #1a2533;
            --text-light: #6C757D;
            --text-muted: #9099A3;
            --border: #E9ECEF;
            --border-light: #F0F2F5;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', '思源黑体', '阿里巴巴普惠体', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-brand-height: 48px;
            --nav-channel-height: 40px;
            --header-total-height: 88px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            padding-top: var(--header-total-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1.5px;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-heading);
        }
        h1 {
            font-size: 2.25rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.75rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.375rem;
        }
        h4 {
            font-size: 1.125rem;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 40px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg);
            box-shadow: 0 1px 0 var(--border-light);
        }
        .brand-bar {
            height: var(--nav-brand-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            background: var(--bg);
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-heading);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: -0.01em;
        }
        .brand-logo:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .brand-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            letter-spacing: 0;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: all var(--transition);
            font-size: 1.1rem;
        }
        .brand-actions .icon-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }
        .channel-bar {
            height: var(--nav-channel-height);
            background: var(--bg-alt);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .channel-bar::-webkit-scrollbar {
            display: none;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
        }
        .channel-nav a {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .channel-nav a:hover {
            color: var(--primary);
            background: var(--accent);
            text-decoration: none;
        }
        .channel-nav a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
        }
        .hamburger-btn {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 1.4rem;
            transition: all var(--transition);
        }
        .hamburger-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--header-total-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-slow);
        }
        .mobile-nav-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-panel {
            position: fixed;
            top: var(--header-total-height);
            right: -300px;
            width: 280px;
            bottom: 0;
            background: var(--bg);
            z-index: 1000;
            padding: 20px;
            overflow-y: auto;
            transition: right var(--transition-slow);
            box-shadow: var(--shadow-lg);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-nav-panel.open {
            right: 0;
        }
        .mobile-nav-panel a {
            display: block;
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius);
            transition: all var(--transition);
            text-decoration: none;
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: var(--accent);
            color: var(--primary);
            text-decoration: none;
        }
        .mobile-nav-panel a.active {
            font-weight: 700;
        }

        /* Hero */
        .hero-section {
            background: linear-gradient(135deg, #1a3c5e 0%, #1B6EC2 40%, #155A8A 100%);
            position: relative;
            overflow: hidden;
            min-height: 70vh;
            display: flex;
            align-items: center;
            padding: 60px 0;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 60, 94, 0.55) 0%, rgba(21, 90, 138, 0.7) 100%);
            z-index: 1;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1.5fr 1fr;
            gap: 40px;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 40px;
        }
        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .hero-value-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: #fff;
            padding: 14px 16px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all var(--transition);
        }
        .hero-value-item:hover {
            background: rgba(255, 255, 255, 0.18);
            border-color: rgba(255, 255, 255, 0.3);
        }
        .hero-value-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1rem;
        }
        .hero-value-text strong {
            display: block;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .hero-value-text span {
            font-size: 0.8rem;
            opacity: 0.85;
            line-height: 1.4;
        }
        .hero-center {
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 24px;
        }
        .hero-center h1 {
            color: #fff;
            font-size: 2.6rem;
            line-height: 1.25;
            letter-spacing: -0.02em;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            margin: 0;
        }
        .hero-subtitle {
            color: rgba(255, 255, 255, 0.92);
            font-size: 1.05rem;
            line-height: 1.7;
            max-width: 500px;
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
        }
        .hero-product-shot {
            width: 100%;
            max-width: 420px;
            border-radius: var(--radius-lg);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
            border: 3px solid rgba(255, 255, 255, 0.25);
            overflow: hidden;
            background: #fff;
        }
        .hero-product-shot img {
            width: 100%;
            display: block;
        }
        .hero-right {
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: stretch;
        }
        .hero-cta-btn {
            display: block;
            text-align: center;
            padding: 14px 20px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .hero-cta-btn.primary {
            background: #fff;
            color: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        }
        .hero-cta-btn.primary:hover {
            background: #f0f5ff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
            text-decoration: none;
            color: var(--primary-dark);
        }
        .hero-cta-btn.secondary {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
        }
        .hero-cta-btn.secondary:hover {
            background: rgba(255, 255, 255, 0.25);
            border-color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-data-row {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-data-item {
            text-align: center;
            color: #fff;
        }
        .hero-data-num {
            font-size: 1.6rem;
            font-weight: 700;
            font-family: var(--font-heading);
            line-height: 1;
        }
        .hero-data-label {
            font-size: 0.78rem;
            opacity: 0.8;
            margin-top: 4px;
        }

        /* Sections */
        section {
            padding: 80px 0;
        }
        section.section-alt {
            background: var(--bg-alt);
        }
        section.section-warm {
            background: var(--bg-warm);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 1.75rem;
            margin-bottom: 12px;
            color: var(--text-heading);
        }
        .section-header p {
            color: var(--text-light);
            font-size: 1rem;
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--accent);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        /* Category Entrance */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .category-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--border);
            transition: all var(--transition);
            text-decoration: none;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
            cursor: pointer;
        }
        .category-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            text-decoration: none;
            background: #fff;
        }
        .category-card .cat-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            flex-shrink: 0;
            transition: all var(--transition);
        }
        .category-card:hover .cat-icon {
            background: var(--primary);
            color: #fff;
        }
        .category-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-heading);
            margin: 0;
        }
        .category-card p {
            font-size: 0.83rem;
            color: var(--text-light);
            line-height: 1.5;
            margin: 0;
        }

        /* Feature Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: #d0d8e0;
        }
        .feature-card .feat-img {
            width: 100%;
            height: 180px;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-alt);
            flex-shrink: 0;
        }
        .feature-card .feat-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-heading);
            margin: 0;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0;
            flex-grow: 1;
        }
        .feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .feature-tag {
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 14px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 500;
            white-space: nowrap;
        }

        /* News Section */
        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 32px;
            align-items: start;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .news-item:first-child {
            padding-top: 0;
        }
        .news-item:hover {
            background: var(--bg-warm);
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: var(--radius-sm);
        }
        .news-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }
        .news-item h4 {
            font-size: 1rem;
            font-weight: 600;
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .news-item h4 a {
            color: var(--text-heading);
            text-decoration: none;
            transition: color var(--transition);
        }
        .news-item h4 a:hover {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .news-summary {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.5;
            margin: 0 0 8px;
        }
        .news-read-more {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }
        .news-read-more:hover {
            gap: 8px;
            color: var(--primary-dark);
            text-decoration: none;
        }
        .news-sidebar {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border);
            position: sticky;
            top: calc(var(--header-total-height) + 20px);
        }
        .news-sidebar h3 {
            font-size: 1.05rem;
            margin-bottom: 16px;
            color: var(--text-heading);
        }
        .news-sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-sidebar-item {
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            background: #fff;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            text-decoration: none;
            display: block;
        }
        .news-sidebar-item:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-xs);
            text-decoration: none;
        }
        .news-sidebar-item .side-tag {
            font-size: 0.7rem;
            background: var(--accent);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 10px;
            margin-right: 6px;
            font-weight: 600;
        }

        /* Scenario */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .scenario-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            background: var(--secondary);
            transition: all var(--transition);
        }
        .scenario-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .scenario-card .scenario-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .scenario-card .scenario-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scenario-card .scenario-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.2) 60%);
            z-index: 1;
        }
        .scenario-card .scenario-content {
            position: relative;
            z-index: 2;
            padding: 28px;
            color: #fff;
            width: 100%;
        }
        .scenario-card .scenario-content h3 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 6px;
        }
        .scenario-card .scenario-content p {
            font-size: 0.9rem;
            opacity: 0.9;
            line-height: 1.5;
        }

        /* Case Cards */
        .case-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 20px;
        }
        .case-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .case-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .case-card.featured {
            grid-row: span 2;
            background: var(--card-bg);
            border-color: #d0d8e0;
        }
        .case-card .case-logo {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .case-card h3 {
            font-size: 1rem;
            font-weight: 600;
            margin: 0;
        }
        .case-card .case-metric {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-heading);
        }
        .case-card .case-quote {
            font-size: 0.85rem;
            color: var(--text-light);
            font-style: italic;
            line-height: 1.5;
        }

        /* Pricing */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: start;
        }
        .pricing-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            border: 2px solid var(--border);
            text-align: center;
            transition: all var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .pricing-card.recommended {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: scale(1.03);
            z-index: 1;
        }
        .pricing-card.recommended:hover {
            transform: scale(1.03) translateY(-3px);
        }
        .pricing-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #fff;
            padding: 5px 18px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .pricing-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 0;
        }
        .pricing-price {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-heading);
        }
        .pricing-price span {
            font-size: 0.9rem;
            font-weight: 400;
            color: var(--text-light);
        }
        .pricing-features {
            text-align: left;
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text);
        }
        .pricing-features li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-features li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
        }
        .pricing-cta {
            display: block;
            padding: 12px;
            border-radius: var(--radius);
            font-weight: 600;
            text-align: center;
            transition: all var(--transition);
            text-decoration: none;
            margin-top: auto;
        }
        .pricing-cta.primary-fill {
            background: var(--primary);
            color: #fff;
        }
        .pricing-cta.primary-fill:hover {
            background: var(--primary-dark);
            text-decoration: none;
            color: #fff;
        }
        .pricing-cta.outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }
        .pricing-cta.outline:hover {
            background: var(--accent);
            text-decoration: none;
            color: var(--primary);
        }

        /* Brand Intro */
        .brand-intro {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            font-size: 1rem;
            line-height: 1.9;
            color: var(--text);
        }
        .brand-intro p {
            margin-bottom: 16px;
        }

        /* Reviews Wall */
        .reviews-header {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: center;
            margin-bottom: 32px;
        }
        .reviews-score {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary);
            font-family: var(--font-heading);
            line-height: 1;
        }
        .reviews-stars {
            color: #f5a623;
            font-size: 1.3rem;
            letter-spacing: 2px;
        }
        .reviews-count {
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .review-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 22px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition);
        }
        .review-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .review-card .review-user {
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 4px;
        }
        .review-card .review-text {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
            font-style: italic;
        }
        .review-card .review-stars {
            color: #f5a623;
            font-size: 0.85rem;
            margin-bottom: 6px;
        }

        /* Topic Cards */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition);
            cursor: pointer;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .topic-card .topic-img {
            height: 160px;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .topic-card .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .topic-card .topic-body {
            padding: 18px;
        }
        .topic-card h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .topic-card p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        /* Deep Content */
        .deep-content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 40px;
        }
        .deep-content-block.reverse {
            direction: rtl;
        }
        .deep-content-block.reverse .deep-text {
            direction: ltr;
        }
        .deep-content-block .deep-text h3 {
            font-size: 1.35rem;
            margin-bottom: 14px;
        }
        .deep-content-block .deep-text p {
            font-size: 0.95rem;
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .deep-content-block .deep-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            background: var(--bg-alt);
            min-height: 260px;
        }
        .deep-content-block .deep-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .deep-full-width {
            background: var(--bg-alt);
            border-radius: var(--radius-lg);
            padding: 36px;
            margin-bottom: 40px;
            border-left: 5px solid var(--primary);
        }
        .deep-full-width h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
        }
        .deep-full-width p {
            font-size: 0.95rem;
            line-height: 1.8;
            color: var(--text);
            margin-bottom: 10px;
        }

        /* FAQ */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            background: #fff;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: #d0d8e0;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            background: var(--card-bg);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-heading);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition);
            border: none;
            font-family: inherit;
        }
        .faq-question:hover {
            background: var(--accent);
        }
        .faq-arrow {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            transition: transform var(--transition-slow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--text);
            background: #fff;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 16px 20px;
            border-top: 1px solid var(--border-light);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1B6EC2 0%, #155A8A 100%);
            color: #fff;
            text-align: center;
            padding: 60px 0;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 1.6rem;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1rem;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-btn-row {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-btn {
            display: inline-block;
            padding: 14px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .cta-btn.white {
            background: #fff;
            color: var(--primary-dark);
        }
        .cta-btn.white:hover {
            background: #f0f5ff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
            text-decoration: none;
            color: var(--primary-dark);
        }
        .cta-btn.outline-white {
            border: 2px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            background: transparent;
        }
        .cta-btn.outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            text-decoration: none;
            color: #fff;
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #c0c7cf;
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 14px;
            font-weight: 600;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            color: #c0c7cf;
            font-size: 0.85rem;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 0.8rem;
            color: #8899aa;
            line-height: 1.8;
        }
        .footer-bottom a {
            color: #b0c0d0;
            text-decoration: none;
            margin: 0 6px;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }
            .brand-bar {
                padding: 0 24px;
            }
            .channel-bar {
                padding: 0 24px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 0 24px;
                text-align: center;
            }
            .hero-left {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
                gap: 12px;
            }
            .hero-value-item {
                flex: 1;
                min-width: 140px;
                justify-content: center;
            }
            .hero-right {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
                gap: 12px;
            }
            .hero-cta-btn {
                flex: 1;
                min-width: 130px;
            }
            .hero-product-shot {
                max-width: 300px;
                margin: 0 auto;
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .case-grid {
                grid-template-columns: 1fr 1fr;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin: 0 auto;
            }
            .pricing-card.recommended {
                transform: scale(1);
            }
            .pricing-card.recommended:hover {
                transform: translateY(-3px);
            }
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-content-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .deep-content-block.reverse {
                direction: ltr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            section {
                padding: 56px 0;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .brand-bar {
                padding: 0 16px;
            }
            .channel-bar {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .mobile-nav-overlay {
                display: block;
            }
            .hero-section {
                min-height: auto;
                padding: 40px 0 50px;
            }
            .hero-inner {
                padding: 0 16px;
                gap: 20px;
            }
            .hero-center h1 {
                font-size: 1.7rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-product-shot {
                max-width: 240px;
            }
            .hero-left {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-right {
                flex-direction: column;
                align-items: stretch;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            section {
                padding: 40px 0;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .pricing-grid {
                max-width: 100%;
            }
            .deep-full-width {
                padding: 20px;
            }
        }
        @media (max-width: 520px) {
            .hero-center h1 {
                font-size: 1.4rem;
            }
            .hero-product-shot {
                max-width: 200px;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .hero-data-row {
                gap: 10px;
            }
            .hero-data-num {
                font-size: 1.2rem;
            }
            .cta-btn-row {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-btn {
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1B6EC2;
            --primary-dark: #155A8A;
            --primary-light: #3D8BD4;
            --secondary: #2C3E50;
            --accent: #E8F0FE;
            --accent-light: #F0F5FC;
            --bg: #FFFFFF;
            --card-bg: #F8FAFD;
            --bg-alt: #F5F7FA;
            --bg-warm: #FAFBFC;
            --text: #2C3E50;
            --text-heading: #1a2533;
            --text-light: #6C757D;
            --text-muted: #9099A3;
            --border: #E9ECEF;
            --border-light: #F0F2F5;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', '思源黑体', '阿里巴巴普惠体', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-brand-height: 48px;
            --nav-channel-height: 40px;
            --header-total-height: 88px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            padding-top: var(--header-total-height);
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1.5px;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }

        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 40px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg);
            box-shadow: 0 1px 0 var(--border-light);
        }

        .brand-bar {
            height: var(--nav-brand-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            background: var(--bg);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-heading);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: -0.01em;
        }

        .brand-logo:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .brand-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            letter-spacing: 0;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: all var(--transition);
            font-size: 1.1rem;
        }

        .brand-actions .icon-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }

        .channel-bar {
            background: var(--bg-alt);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-channel-height);
            display: flex;
            align-items: center;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .channel-bar::-webkit-scrollbar {
            display: none;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            width: 100%;
        }

        .channel-nav a {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            letter-spacing: 0.01em;
        }

        .channel-nav a:hover {
            color: var(--primary);
            background: var(--accent);
            text-decoration: none;
        }

        .channel-nav a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(27, 110, 194, 0.3);
        }

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

        /* Mobile menu toggle */
        .mobile-menu-toggle {
            display: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: 1.3rem;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .mobile-menu-toggle:hover {
            background: var(--accent);
            color: var(--primary);
        }

        /* Section spacing */
        .section {
            padding: 80px 0;
        }

        .section-sm {
            padding: 50px 0;
        }

        .section-lg {
            padding: 100px 0;
        }

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

        .section-accent {
            background: var(--accent-light);
        }

        .section-dark {
            background: var(--secondary);
            color: #fff;
        }

        /* Hero */
        .hero-scene {
            position: relative;
            min-height: 65vh;
            display: flex;
            align-items: center;
            background: var(--secondary);
            overflow: hidden;
            padding: 60px 0;
        }

        .hero-scene-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }

        .hero-scene-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27, 110, 194, 0.75) 0%, rgba(44, 62, 80, 0.85) 100%);
            z-index: 1;
        }

        .hero-scene .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-scene-content {
            color: #fff;
        }

        .hero-scene-content h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 20px;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .hero-scene-content .hero-subtitle {
            font-size: 1.15rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 30px;
            max-width: 520px;
        }

        .hero-scene-content .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
            cursor: pointer;
            border: 2px solid transparent;
        }

        .btn:hover {
            text-decoration: none;
            transform: translateY(-1px);
        }

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

        .btn-primary:hover {
            background: #f0f4f8;
            border-color: #f0f4f8;
            color: var(--primary-dark);
            box-shadow: var(--shadow-md);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.7);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            box-shadow: var(--shadow-md);
        }

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

        .btn-solid:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 1rem;
            border-radius: var(--radius);
        }

        /* Hero data panel */
        .hero-data-panel {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .hero-data-item {
            text-align: center;
            padding: 16px 10px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-data-item .data-number {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.1;
        }

        .hero-data-item .data-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 4px;
        }

        /* Scene showcase */
        .scene-showcase {
            padding: 90px 0;
        }

        .scene-intro {
            text-align: center;
            margin-bottom: 60px;
        }

        .scene-intro h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .scene-intro p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .scene-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            margin-bottom: 50px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow);
            background: var(--bg);
            min-height: 380px;
            transition: box-shadow var(--transition-slow);
        }

        .scene-block:hover {
            box-shadow: var(--shadow-hover);
        }

        .scene-block.reverse {
            direction: rtl;
        }

        .scene-block.reverse .scene-block-content {
            direction: ltr;
        }

        .scene-block.reverse .scene-block-visual {
            direction: ltr;
        }

        .scene-block-visual {
            position: relative;
            min-height: 380px;
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .scene-block-visual .visual-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(44, 62, 80, 0.15) 0%, rgba(44, 62, 80, 0.45) 100%);
        }

        .scene-block-visual .visual-tag {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--primary);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            z-index: 2;
            letter-spacing: 0.02em;
        }

        .scene-block-content {
            padding: 40px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background: var(--bg);
        }

        .scene-block-content h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .scene-block-content p {
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
            font-size: 0.95rem;
        }

        .scene-block-content .scene-features {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }

        .scene-block-content .scene-features li {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.85rem;
            color: var(--text);
            background: var(--accent-light);
            padding: 5px 12px;
            border-radius: 20px;
            font-weight: 500;
        }

        .scene-block-content .scene-features li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 700;
            font-size: 0.75rem;
        }

        .scene-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            transition: gap var(--transition);
        }

        .scene-link:hover {
            gap: 10px;
            color: var(--primary-dark);
            text-decoration: none;
        }

        .scene-link::after {
            content: '→';
            font-size: 1.1rem;
            transition: transform var(--transition);
        }

        .scene-link:hover::after {
            transform: translateX(3px);
        }

        /* Process flow */
        .process-section {
            padding: 90px 0;
            background: var(--bg-alt);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 50px;
        }

        .process-step {
            text-align: center;
            padding: 30px 20px;
            background: var(--bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-slow);
            position: relative;
            border: 1px solid var(--border-light);
        }

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

        .process-step .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 16px;
            font-family: var(--font-heading);
        }

        .process-step h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        .process-connector {
            display: none;
        }

        /* Stats bar */
        .stats-bar {
            padding: 50px 0;
            background: var(--secondary);
            color: #fff;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stat-item .stat-number {
            font-family: var(--font-heading);
            font-size: 2.5rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 6px;
        }

        /* More scenes grid */
        .more-scenes {
            padding: 90px 0;
        }

        .scene-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 50px;
        }

        .scene-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition-slow);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }

        .scene-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .scene-card-image {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .scene-card-image .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            z-index: 2;
        }

        .scene-card-body {
            padding: 22px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .scene-card-body h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
        }

        .scene-card-body p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }

        .scene-card-body .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .scene-card-body .card-tags span {
            font-size: 0.75rem;
            background: var(--accent-light);
            color: var(--primary);
            padding: 3px 10px;
            border-radius: 14px;
            font-weight: 500;
        }

        /* FAQ */
        .faq-section {
            padding: 90px 0;
            background: var(--bg-alt);
        }

        .faq-list {
            max-width: 800px;
            margin: 50px auto 0;
        }

        .faq-item {
            background: var(--bg);
            border-radius: var(--radius);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-xs);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-heading);
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--card-bg);
            cursor: pointer;
            transition: background var(--transition);
            border: none;
            font-family: var(--font-body);
            letter-spacing: 0.01em;
        }

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

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition);
            font-size: 0.9rem;
            color: var(--primary);
            font-weight: 700;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* CTA */
        .cta-section {
            padding: 80px 0;
            background: var(--primary);
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius);
        }

        .cta-section .btn:hover {
            background: #f0f4f8;
            color: var(--primary-dark);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.85);
            padding: 50px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.88rem;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: none;
        }

        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.8rem;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }
            .brand-bar {
                padding: 0 24px;
            }
            .channel-nav {
                padding: 0 24px;
            }
            .hero-scene .container {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-data-panel {
                grid-template-columns: repeat(4, 1fr);
            }
            .scene-block {
                grid-template-columns: 1fr;
                min-height: auto;
            }
            .scene-block.reverse {
                direction: ltr;
            }
            .scene-block-visual {
                min-height: 260px;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .scene-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .brand-bar {
                padding: 0 16px;
            }
            .channel-nav {
                padding: 0 16px;
                gap: 2px;
            }
            .channel-nav a {
                padding: 5px 10px;
                font-size: 0.78rem;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .channel-bar {
                overflow-x: auto;
            }
            .hero-scene {
                min-height: auto;
                padding: 40px 0;
            }
            .hero-scene-content h1 {
                font-size: 1.8rem;
            }
            .hero-scene-content .hero-subtitle {
                font-size: 1rem;
            }
            .hero-data-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
                padding: 20px 16px;
            }
            .hero-data-item .data-number {
                font-size: 1.5rem;
            }
            .section {
                padding: 50px 0;
            }
            .section-lg {
                padding: 60px 0;
            }
            .scene-showcase {
                padding: 50px 0;
            }
            .scene-intro h2 {
                font-size: 1.5rem;
            }
            .scene-block-content {
                padding: 24px 18px;
            }
            .scene-block-content h3 {
                font-size: 1.25rem;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .process-step {
                padding: 20px 14px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .stat-item .stat-number {
                font-size: 1.8rem;
            }
            .scene-cards-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .scene-card-image {
                height: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .scene-block-visual {
                min-height: 200px;
            }
        }

        @media (max-width: 520px) {
            .hero-data-panel {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
                padding: 14px 10px;
            }
            .hero-data-item {
                padding: 10px 6px;
            }
            .hero-data-item .data-number {
                font-size: 1.3rem;
            }
            .hero-data-item .data-label {
                font-size: 0.72rem;
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-item .stat-number {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
            .btn-lg {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            .hero-scene-content h1 {
                font-size: 1.5rem;
            }
            .scene-intro h2 {
                font-size: 1.35rem;
            }
            .scene-block-content h3 {
                font-size: 1.1rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1B6EC2;
            --primary-dark: #155A8A;
            --primary-light: #3D8BD4;
            --secondary: #2C3E50;
            --accent: #E8F0FE;
            --accent-light: #F0F5FC;
            --bg: #FFFFFF;
            --card-bg: #F8FAFD;
            --bg-alt: #F5F7FA;
            --bg-warm: #FAFBFC;
            --text: #2C3E50;
            --text-heading: #1a2533;
            --text-light: #6C757D;
            --text-muted: #9099A3;
            --border: #E9ECEF;
            --border-light: #F0F2F5;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', '思源黑体', '阿里巴巴普惠体', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-brand-height: 48px;
            --nav-channel-height: 40px;
            --header-total-height: 88px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            padding-top: var(--header-total-height);
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1.5px;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }

        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 40px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg);
            box-shadow: 0 1px 0 var(--border-light);
        }

        .brand-bar {
            height: var(--nav-brand-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            background: var(--bg);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-heading);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: -0.01em;
        }

        .brand-logo:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .brand-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            letter-spacing: 0;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: all var(--transition);
            font-size: 1.1rem;
        }

        .brand-actions .icon-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }

        .channel-bar {
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-channel-height);
            display: flex;
            align-items: center;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .channel-bar::-webkit-scrollbar {
            display: none;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            width: 100%;
        }

        .channel-nav a {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            letter-spacing: 0.01em;
        }

        .channel-nav a:hover {
            color: var(--primary);
            background: var(--accent);
            text-decoration: none;
        }

        .channel-nav a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-xs);
        }

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

        /* Mobile menu toggle */
        .mobile-menu-toggle {
            display: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 1.3rem;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .mobile-menu-toggle:hover {
            background: var(--accent);
            color: var(--primary);
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            min-height: 38vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            text-align: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27, 110, 194, 0.75) 0%, rgba(44, 62, 80, 0.8) 100%);
            z-index: 1;
        }

        .page-banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 40px 20px;
            max-width: 700px;
        }

        .page-banner-content h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .page-banner-content .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.6;
            max-width: 560px;
            margin: 0 auto;
        }

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 18px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
            flex-wrap: wrap;
        }

        .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            transition: color var(--transition);
        }

        .banner-breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .banner-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.5);
        }

        /* Section common */
        .section {
            padding: 70px 0;
        }

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

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

        .section-header {
            text-align: center;
            margin-bottom: 48px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .section-header .section-desc {
            color: var(--text-light);
            font-size: 1rem;
            line-height: 1.6;
        }

        /* News filter bar */
        .news-filter-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            padding: 20px 0 10px;
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 40px;
        }

        .news-filter-bar .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 7px 18px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
            cursor: pointer;
            border: 1px solid transparent;
            background: var(--bg);
        }

        .news-filter-bar .filter-tag:hover {
            color: var(--primary);
            background: var(--accent);
            border-color: var(--accent);
        }

        .news-filter-bar .filter-tag.active-filter {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-xs);
        }

        /* News list */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .news-item {
            display: flex;
            align-items: stretch;
            background: var(--bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition-slow);
            border: 1px solid var(--border-light);
            min-height: 200px;
        }

        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--border);
        }

        .news-item .news-image {
            flex: 0 0 320px;
            min-height: 200px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
        }

        .news-item .news-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(0, 0, 0, 0.02) 0%, transparent 60%);
            pointer-events: none;
        }

        .news-item.news-reverse .news-image {
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
        }

        .news-item.news-reverse .news-image::after {
            background: linear-gradient(to left, rgba(0, 0, 0, 0.02) 0%, transparent 60%);
        }

        .news-item .news-body {
            flex: 1;
            padding: 28px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 10px;
            min-width: 0;
        }

        .news-item .news-date {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-item .news-date::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .news-item .news-title {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.4;
            letter-spacing: -0.005em;
        }

        .news-item .news-title a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        .news-item .news-title a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .news-item .news-excerpt {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item .news-readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
            align-self: flex-start;
            padding: 8px 0;
            text-decoration: none;
            border-bottom: 2px solid transparent;
        }

        .news-item .news-readmore:hover {
            color: var(--primary-dark);
            border-bottom-color: var(--primary-dark);
            text-decoration: none;
        }

        .news-item .news-readmore .arrow-icon {
            transition: transform var(--transition);
            display: inline-block;
        }

        .news-item .news-readmore:hover .arrow-icon {
            transform: translateX(4px);
        }

        /* Reverse layout */
        .news-reverse {
            flex-direction: row-reverse;
        }

        .news-reverse .news-body {
            padding: 28px 32px;
        }

        /* Pagination */
        .pagination-section {
            text-align: center;
            padding: 50px 0 30px;
        }

        .pagination {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .pagination .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            background: var(--bg);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
            text-decoration: none;
        }

        .pagination .page-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--accent);
            text-decoration: none;
        }

        .pagination .page-btn.active-page {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 700;
            box-shadow: var(--shadow-xs);
            pointer-events: none;
        }

        .pagination .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
            cursor: default;
        }

        .pagination .page-dots {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            font-size: 0.9rem;
            color: var(--text-muted);
            letter-spacing: 2px;
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 44px 40px;
            text-align: center;
            color: #fff;
            margin-top: 10px;
        }

        .subscribe-cta h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .subscribe-cta p {
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 22px;
            font-size: 0.95rem;
            line-height: 1.6;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 460px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            border-radius: var(--radius);
            border: 2px solid transparent;
            font-size: 0.95rem;
            outline: none;
            background: #fff;
            color: var(--text);
            transition: all var(--transition);
        }

        .subscribe-form input:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.25);
        }

        .btn-primary-white {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--primary);
            background: #fff;
            border-radius: var(--radius);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
            border: 2px solid #fff;
            text-decoration: none;
        }

        .btn-primary-white:hover {
            background: #f0f4f8;
            border-color: #f0f4f8;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
            text-decoration: none;
            color: var(--primary-dark);
        }

        /* Hot tags */
        .hot-tags-section {
            text-align: center;
            padding: 40px 0 20px;
        }

        .hot-tags-section .tags-title {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 16px;
        }

        .hot-tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .hot-tags-cloud .tag-chip {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-light);
            background: var(--bg-alt);
            border-radius: 20px;
            transition: all var(--transition);
            cursor: pointer;
            border: 1px solid var(--border-light);
            text-decoration: none;
        }

        .hot-tags-cloud .tag-chip:hover {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--primary);
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: var(--shadow-xs);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #c0c7cf;
            padding: 50px 0 0;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 600;
            color: #e8ecf0;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

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

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

        .footer-col ul li a {
            color: #a8b2bd;
            font-size: 0.9rem;
            transition: color var(--transition);
            text-decoration: none;
        }

        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .footer-bottom {
            text-align: center;
            padding: 20px 0 24px;
            font-size: 0.82rem;
            color: #8895a3;
            line-height: 1.8;
        }

        .footer-bottom a {
            color: #a8b2bd;
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding: 0 28px;
            }
            .brand-bar {
                padding: 0 28px;
            }
            .channel-nav {
                padding: 0 28px;
                gap: 2px;
            }
            .channel-nav a {
                padding: 5px 12px;
                font-size: 0.82rem;
            }
            .news-item .news-image {
                flex: 0 0 260px;
                min-height: 180px;
            }
            .news-item .news-body {
                padding: 22px 24px;
            }
            .page-banner-content h1 {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-total-height: 48px;
            }
            body {
                padding-top: var(--header-total-height);
            }
            .container {
                padding: 0 16px;
            }
            .brand-bar {
                padding: 0 16px;
            }
            .channel-bar {
                position: fixed;
                top: var(--nav-brand-height);
                left: 0;
                right: 0;
                height: auto;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s ease;
                background: var(--bg);
                box-shadow: none;
                z-index: 999;
                border-bottom: none;
            }
            .channel-bar.open {
                max-height: 400px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border-light);
            }
            .channel-nav {
                flex-direction: column;
                padding: 10px 16px;
                gap: 2px;
                align-items: stretch;
            }
            .channel-nav a {
                padding: 10px 16px;
                border-radius: var(--radius);
                font-size: 0.9rem;
                justify-content: flex-start;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .brand-actions .icon-btn.search-btn-desktop {
                display: none;
            }
            .news-item {
                flex-direction: column !important;
                min-height: auto;
            }
            .news-item .news-image {
                flex: 0 0 200px;
                min-height: 200px;
                width: 100%;
                border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
            }
            .news-item .news-body {
                padding: 20px 18px;
            }
            .news-item .news-title {
                font-size: 1.15rem;
            }
            .page-banner {
                min-height: 28vh;
            }
            .page-banner-content h1 {
                font-size: 1.75rem;
            }
            .page-banner-content .banner-subtitle {
                font-size: 0.95rem;
            }
            .section {
                padding: 44px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .news-filter-bar {
                gap: 6px;
                padding: 14px 0 8px;
                margin-bottom: 24px;
            }
            .news-filter-bar .filter-tag {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .news-list {
                gap: 18px;
            }
            .subscribe-cta {
                padding: 30px 20px;
                border-radius: var(--radius-lg);
            }
            .subscribe-cta h3 {
                font-size: 1.25rem;
            }
            .subscribe-form {
                flex-direction: column;
                gap: 10px;
            }
            .subscribe-form input {
                min-width: auto;
                width: 100%;
            }
            .btn-primary-white {
                justify-content: center;
                width: 100%;
            }
            .pagination .page-btn {
                min-width: 34px;
                height: 34px;
                padding: 0 10px;
                font-size: 0.82rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .hot-tags-cloud .tag-chip {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .page-banner-content h1 {
                font-size: 1.5rem;
            }
            .page-banner {
                min-height: 24vh;
            }
            .news-item .news-image {
                flex: 0 0 160px;
                min-height: 160px;
            }
            .news-item .news-title {
                font-size: 1.05rem;
            }
            .news-item .news-excerpt {
                font-size: 0.88rem;
                -webkit-line-clamp: 2;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .pagination .page-btn {
                min-width: 30px;
                height: 30px;
                padding: 0 8px;
                font-size: 0.78rem;
            }
            .pagination {
                gap: 3px;
            }
            .news-filter-bar {
                gap: 4px;
            }
            .news-filter-bar .filter-tag {
                padding: 5px 10px;
                font-size: 0.76rem;
                border-radius: 16px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1B6EC2;
            --primary-dark: #155A8A;
            --primary-light: #3D8BD4;
            --secondary: #2C3E50;
            --accent: #E8F0FE;
            --accent-light: #F0F5FC;
            --bg: #FFFFFF;
            --card-bg: #F8FAFD;
            --bg-alt: #F5F7FA;
            --bg-warm: #FAFBFC;
            --text: #2C3E50;
            --text-heading: #1a2533;
            --text-light: #6C757D;
            --text-muted: #9099A3;
            --border: #E9ECEF;
            --border-light: #F0F2F5;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', '思源黑体', '阿里巴巴普惠体', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-brand-height: 48px;
            --nav-channel-height: 40px;
            --header-total-height: 88px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            padding-top: var(--header-total-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1.5px;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }
        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 40px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg);
            box-shadow: 0 1px 0 var(--border-light);
        }
        .brand-bar {
            height: var(--nav-brand-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            background: var(--bg);
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-heading);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: -0.01em;
        }
        .brand-logo:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .brand-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            letter-spacing: 0;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: all var(--transition);
            font-size: 1.1rem;
        }
        .brand-actions .icon-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }
        .channel-bar {
            background: #f8f9fb;
            border-top: 1px solid var(--border-light);
            height: var(--nav-channel-height);
            display: flex;
            align-items: center;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .channel-bar::-webkit-scrollbar {
            height: 0;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            width: 100%;
        }
        .channel-nav a {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .channel-nav a:hover {
            color: var(--primary);
            background: var(--accent);
            text-decoration: none;
        }
        .channel-nav a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(27, 110, 194, 0.3);
        }
        .channel-nav a.active:hover {
            color: #fff;
            background: var(--primary-dark);
        }
        .mobile-menu-toggle {
            display: none;
            width: 36px;
            height: 36px;
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: 1.4rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .mobile-menu-toggle:hover {
            background: var(--accent);
            color: var(--primary);
        }

        /* Section通用 */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-warm {
            background: var(--bg-warm);
        }
        .section-heading {
            margin-bottom: 40px;
        }
        .section-heading h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .section-heading p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 700px;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--accent);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        /* Hero闪购条 */
        .hero-flash {
            position: relative;
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
            color: #fff;
            padding: 0;
            overflow: hidden;
        }
        .hero-flash-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }
        .hero-flash-overlay {
            position: relative;
            z-index: 1;
            padding: 60px 0 50px;
        }
        .flash-banner {
            background: linear-gradient(90deg, #ff6b35, #e8452d);
            color: #fff;
            text-align: center;
            padding: 14px 24px;
            border-radius: var(--radius-lg);
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            box-shadow: 0 4px 20px rgba(232, 69, 45, 0.35);
        }
        .flash-banner-label {
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            background: rgba(255, 255, 255, 0.2);
            padding: 5px 14px;
            border-radius: 20px;
            white-space: nowrap;
        }
        .flash-banner-text {
            font-weight: 500;
            font-size: 1.05rem;
            letter-spacing: 0.01em;
        }
        .flash-countdown {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.3rem;
            letter-spacing: 0.02em;
        }
        .flash-countdown-unit {
            background: rgba(0, 0, 0, 0.3);
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            min-width: 44px;
            text-align: center;
            font-variant-numeric: tabular-nums;
            font-family: 'Courier New', monospace;
            font-size: 1.5rem;
            letter-spacing: 0.05em;
        }
        .flash-countdown-sep {
            font-size: 1.2rem;
            opacity: 0.8;
        }
        .hero-flash-main {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .hero-flash-content h1 {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .hero-flash-content h1 span {
            color: #ffb347;
        }
        .hero-flash-content .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .hero-flash-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius);
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn-primary {
            background: #ff6b35;
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.4);
        }
        .btn-primary:hover {
            background: #e8452d;
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.5);
        }
        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            background: transparent;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
        }
        .hero-flash-card {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-xl);
            padding: 28px;
            text-align: center;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
        }
        .hero-flash-card img {
            border-radius: var(--radius-lg);
            margin-bottom: 16px;
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }
        .hero-flash-card h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 6px;
        }
        .hero-flash-card .price-tag {
            font-size: 2rem;
            font-weight: 700;
            color: #ffb347;
            margin-bottom: 4px;
        }
        .hero-flash-card .price-original {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            text-decoration: line-through;
        }
        .hero-flash-card .badge-hot {
            display: inline-block;
            background: #e8452d;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        /* 功能板块 */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .feature-block.reverse {
            direction: rtl;
        }
        .feature-block.reverse>* {
            direction: ltr;
        }
        .feature-block-img {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .feature-block-img img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: var(--radius-xl);
        }
        .feature-block-img .img-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--primary);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .feature-block-content h2 {
            font-family: var(--font-heading);
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .feature-block-content p {
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .feature-specs {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 18px;
        }
        .feature-specs li {
            background: var(--accent);
            color: var(--primary-dark);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.01em;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 22px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius);
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .btn-secondary:hover {
            background: var(--accent);
            color: var(--primary-dark);
            text-decoration: none;
            transform: translateY(-1px);
        }
        .btn-primary-solid {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius);
            background: var(--primary);
            color: #fff;
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.01em;
            box-shadow: 0 3px 12px rgba(27, 110, 194, 0.3);
        }
        .btn-primary-solid:hover {
            background: var(--primary-dark);
            color: #fff;
            text-decoration: none;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(27, 110, 194, 0.4);
        }

        /* 网格卡片 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card-grid.col2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .card-grid.col4 {
            grid-template-columns: repeat(4, 1fr);
        }
        .card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition-slow);
            box-shadow: var(--shadow-xs);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--border-light);
        }
        .card-icon {
            width: 50px;
            height: 50px;
            background: var(--accent);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--primary);
        }
        .card h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 8px;
        }
        .card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* 大图叠加区块 */
        .image-overlay-block {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .image-overlay-block img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
        }
        .image-overlay-block .overlay-content {
            position: relative;
            z-index: 1;
            padding: 50px;
            max-width: 600px;
            background: linear-gradient(90deg, rgba(0, 0, 0, 0.75) 0%, rgba(0, 0, 0, 0.3) 70%, transparent 100%);
            color: #fff;
            border-radius: var(--radius-xl);
        }
        .image-overlay-block .overlay-content h2 {
            font-family: var(--font-heading);
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .image-overlay-block .overlay-content p {
            font-size: 1rem;
            line-height: 1.7;
            opacity: 0.9;
        }

        /* 技术规格表格 */
        .spec-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .spec-table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            min-width: 700px;
        }
        .spec-table thead {
            background: var(--secondary);
            color: #fff;
        }
        .spec-table thead th {
            padding: 16px 18px;
            text-align: left;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
        }
        .spec-table tbody td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text);
        }
        .spec-table tbody tr:hover {
            background: var(--accent-light);
        }
        .spec-table .badge-yes {
            display: inline-block;
            background: #d4edda;
            color: #155724;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 600;
        }
        .spec-table .badge-pro {
            display: inline-block;
            background: #fff3cd;
            color: #856404;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 600;
        }

        /* 统计数字 */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 24px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
        }
        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 6px;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 10px;
            overflow: hidden;
            background: #fff;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            width: 100%;
            padding: 18px 20px;
            background: var(--card-bg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-heading);
            cursor: pointer;
            transition: all var(--transition);
            text-align: left;
            gap: 16px;
        }
        .faq-question:hover {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-slow);
            font-size: 1.2rem;
            color: var(--text-light);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 6px 20px 20px;
        }

        /* CTA区块 */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            text-align: center;
            padding: 60px 40px;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
        }
        .cta-block h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-block p {
            font-size: 1.1rem;
            opacity: 0.9;
            margin-bottom: 24px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-block .btn-white {
            background: #fff;
            color: var(--primary);
            padding: 13px 28px;
            font-weight: 700;
            border-radius: var(--radius);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            text-decoration: none;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
        }
        .cta-block .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(0, 0, 0, 0.25);
            text-decoration: none;
            color: var(--primary-dark);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #c0c7cf;
            padding: 50px 0 0;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            padding-bottom: 30px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-col h4 {
            color: #fff;
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #a0aab4;
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: none;
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.85rem;
            color: #88929c;
            line-height: 1.8;
        }
        .footer-bottom a {
            color: #a0aab4;
            margin: 0 4px;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }
            .brand-bar {
                padding: 0 24px;
            }
            .channel-nav {
                padding: 0 24px;
                gap: 2px;
            }
            .channel-nav a {
                padding: 5px 12px;
                font-size: 0.82rem;
            }
            .hero-flash-main {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-flash-content h1 {
                font-size: 1.9rem;
            }
            .feature-block {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .feature-block.reverse {
                direction: ltr;
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid.col4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section {
                padding: 50px 0;
            }
            .image-overlay-block {
                min-height: 300px;
            }
            .image-overlay-block .overlay-content {
                padding: 30px;
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .brand-bar {
                padding: 0 16px;
            }
            .brand-actions .icon-btn {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .channel-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: var(--nav-brand-height);
                left: 0;
                right: 0;
                background: #fff;
                padding: 12px 16px;
                gap: 2px;
                box-shadow: var(--shadow-md);
                z-index: 999;
                border-top: 1px solid var(--border-light);
                border-bottom: 2px solid var(--border);
            }
            .channel-nav.show {
                display: flex;
            }
            .channel-nav a {
                width: 100%;
                padding: 10px 16px;
                border-radius: var(--radius);
                font-size: 0.9rem;
                justify-content: flex-start;
            }
            .channel-bar {
                position: relative;
            }
            .hero-flash-overlay {
                padding: 40px 0 30px;
            }
            .hero-flash-content h1 {
                font-size: 1.5rem;
            }
            .flash-banner {
                flex-direction: column;
                gap: 10px;
                padding: 12px 16px;
                font-size: 0.9rem;
            }
            .flash-countdown {
                font-size: 1.1rem;
            }
            .flash-countdown-unit {
                font-size: 1.2rem;
                min-width: 36px;
                padding: 4px 8px;
            }
            .hero-flash-card {
                padding: 20px;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-grid.col2,
            .card-grid.col4 {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section {
                padding: 40px 0;
            }
            .section-heading h2 {
                font-size: 1.5rem;
            }
            .feature-block-content h2 {
                font-size: 1.4rem;
            }
            .image-overlay-block {
                min-height: 260px;
            }
            .image-overlay-block .overlay-content {
                padding: 20px;
                background: rgba(0, 0, 0, 0.7);
            }
            .cta-block {
                padding: 40px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .spec-table-wrap {
                border-radius: var(--radius);
            }
            body {
                padding-top: var(--nav-brand-height);
            }
            .site-header {
                position: fixed;
            }
            .channel-bar {
                height: auto;
            }
        }

        @media (max-width: 520px) {
            .hero-flash-content h1 {
                font-size: 1.3rem;
            }
            .hero-flash-content .hero-desc {
                font-size: 0.95rem;
            }
            .btn {
                padding: 10px 18px;
                font-size: 0.9rem;
            }
            .btn-primary-solid {
                padding: 10px 18px;
                font-size: 0.9rem;
            }
            .hero-flash-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .hero-flash-cta-group .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .stat-item {
                padding: 16px;
            }
            .flash-countdown {
                font-size: 1rem;
                gap: 4px;
            }
            .flash-countdown-unit {
                font-size: 1rem;
                min-width: 30px;
                padding: 3px 6px;
            }
            .section-heading h2 {
                font-size: 1.3rem;
            }
            .feature-block-content h2 {
                font-size: 1.25rem;
            }
            .image-overlay-block .overlay-content h2 {
                font-size: 1.3rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1B6EC2;
            --primary-dark: #155A8A;
            --primary-light: #3D8BD4;
            --secondary: #2C3E50;
            --accent: #E8F0FE;
            --accent-light: #F0F5FC;
            --bg: #FFFFFF;
            --card-bg: #F8FAFD;
            --bg-alt: #F5F7FA;
            --bg-warm: #FAFBFC;
            --text: #2C3E50;
            --text-heading: #1a2533;
            --text-light: #6C757D;
            --text-muted: #9099A3;
            --border: #E9ECEF;
            --border-light: #F0F2F5;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', '思源黑体', '阿里巴巴普惠体', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-brand-height: 48px;
            --nav-channel-height: 40px;
            --header-total-height: 88px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            padding-top: var(--header-total-height);
            margin: 0;
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1.5px;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }

        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 40px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--text-heading);
            line-height: 1.35;
            margin-top: 0;
        }

        h1 {
            font-size: 2.25rem;
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.375rem;
            font-weight: 600;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg);
            box-shadow: 0 1px 0 var(--border-light);
        }

        .brand-bar {
            height: var(--nav-brand-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            background: var(--bg);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-heading);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: -0.01em;
        }

        .brand-logo:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .brand-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            letter-spacing: 0;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: all var(--transition);
            font-size: 1.1rem;
        }

        .brand-actions .icon-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }

        .channel-bar {
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-channel-height);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .channel-bar::-webkit-scrollbar {
            display: none;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            padding: 0 16px;
        }

        .channel-nav a {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            letter-spacing: 0.01em;
        }

        .channel-nav a:hover {
            color: var(--primary);
            background: var(--accent);
            text-decoration: none;
        }

        .channel-nav a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-xs);
        }

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

        /* Mobile menu toggle */
        .mobile-menu-toggle {
            display: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 1.3rem;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .mobile-menu-toggle:hover {
            background: var(--accent);
            color: var(--primary);
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            min-height: 55vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
            text-align: center;
            padding: 80px 20px;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27, 110, 194, 0.82) 0%, rgba(44, 62, 80, 0.75) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 750px;
            color: #fff;
        }

        .hero-content h1 {
            color: #fff;
            font-size: 2.6rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .hero-content .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius);
            transition: all var(--transition);
            text-decoration: none;
            letter-spacing: 0.01em;
            cursor: pointer;
            white-space: nowrap;
            font-family: var(--font-body);
            line-height: 1.4;
        }

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

        .btn-primary:hover {
            background: #f0f5fc;
            color: var(--primary-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }

        .btn-primary-dark {
            background: var(--primary);
            color: #fff;
            border: 2px solid var(--primary);
            box-shadow: var(--shadow);
        }

        .btn-primary-dark:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            text-decoration: none;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--accent);
            color: var(--primary-dark);
            text-decoration: none;
            transform: translateY(-1px);
        }

        /* Stats Section */
        .stats-section {
            padding: 60px 0;
            background: var(--secondary);
            position: relative;
            z-index: 3;
            margin-top: -4px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-item {
            color: #fff;
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-number .stat-suffix {
            font-size: 1.4rem;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.8);
            margin-left: 2px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 400;
            letter-spacing: 0.02em;
        }

        /* Section Common */
        .section {
            padding: 80px 0;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 48px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-header h2 {
            margin-bottom: 12px;
        }

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

        /* Filter Tags */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            font-size: 0.9rem;
            font-weight: 500;
            border-radius: 24px;
            border: 1.5px solid var(--border);
            background: #fff;
            color: var(--text-light);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--accent-light);
        }

        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* Case Cards Grid */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .case-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition-slow);
            box-shadow: var(--shadow-xs);
            display: flex;
            flex-direction: column;
        }

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

        .case-card-image {
            height: 200px;
            overflow: hidden;
            position: relative;
            background: var(--bg-alt);
        }

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

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

        .case-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 20px;
            letter-spacing: 0.02em;
            z-index: 2;
        }

        .case-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .case-card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--text-heading);
            line-height: 1.4;
        }

        .case-card-body .case-card-desc {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 14px;
            flex: 1;
        }

        .case-card-metrics {
            display: flex;
            gap: 20px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            flex-wrap: wrap;
        }

        .case-metric {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .case-metric-value {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--primary);
            letter-spacing: -0.01em;
        }

        .case-metric-label {
            font-size: 0.75rem;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        .case-card-quote {
            font-style: italic;
            color: var(--text-light);
            font-size: 0.85rem;
            line-height: 1.5;
            margin-top: 10px;
            padding-left: 12px;
            border-left: 3px solid var(--accent);
        }

        /* Featured Case */
        .featured-case {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            display: grid;
            grid-template-columns: 1fr 1fr;
            border: 1px solid var(--border);
        }

        .featured-case-image {
            min-height: 380px;
            background: var(--bg-alt);
            position: relative;
            overflow: hidden;
        }

        .featured-case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .featured-case-content {
            padding: 40px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-case-content .case-tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
            width: fit-content;
        }

        .featured-case-content h3 {
            font-size: 1.5rem;
            margin-bottom: 12px;
        }

        .featured-case-content p {
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .featured-case-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .featured-stat {
            text-align: center;
            min-width: 70px;
        }

        .featured-stat-value {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary);
            line-height: 1.1;
        }

        .featured-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Testimonials */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-slow);
            position: relative;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 10px;
            left: 18px;
            font-size: 4rem;
            font-family: var(--font-heading);
            color: var(--accent);
            line-height: 1;
            opacity: 0.7;
            pointer-events: none;
        }

        .testimonial-text {
            font-size: 0.95rem;
            color: var(--text);
            line-height: 1.7;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            padding-top: 8px;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .testimonial-info .author-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-heading);
        }

        .testimonial-info .author-role {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* Partner Logos */
        .partner-logos {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: center;
            align-items: center;
            padding: 20px 0;
        }

        .partner-logo-item {
            width: 100px;
            height: 60px;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: all var(--transition);
            padding: 8px;
            text-align: center;
            letter-spacing: 0.02em;
        }

        .partner-logo-item:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 70px 0;
            text-align: center;
            color: #fff;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 1.8rem;
            margin-bottom: 12px;
        }

        .cta-section .cta-desc {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .cta-section .btn {
            font-size: 1.05rem;
            padding: 14px 32px;
        }

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

        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            width: 100%;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-heading);
            background: var(--card-bg);
            text-align: left;
            cursor: pointer;
            transition: all var(--transition);
            gap: 12px;
            font-family: var(--font-body);
        }

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

        .faq-arrow {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            transition: transform var(--transition-slow);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.75);
            padding: 50px 0 0;
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color var(--transition);
            font-size: 0.88rem;
        }

        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
        }

        .footer-bottom p {
            margin: 4px 0;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
        }

        .footer-bottom a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding: 0 28px;
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .featured-case {
                grid-template-columns: 1fr;
            }
            .featured-case-image {
                min-height: 260px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .brand-bar {
                padding: 0 16px;
            }
            .channel-bar {
                justify-content: flex-start;
            }
            .channel-nav {
                gap: 2px;
                padding: 0 8px;
            }
            .channel-nav a {
                padding: 5px 10px;
                font-size: 0.78rem;
                border-radius: 16px;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .brand-actions .icon-btn.hide-mobile {
                display: none;
            }
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .featured-case-content {
                padding: 24px 20px;
            }
            .hero-section {
                min-height: 45vh;
                padding: 60px 16px;
            }
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-content .hero-subtitle {
                font-size: 1rem;
            }
            .section {
                padding: 50px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tag {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .featured-case-stats {
                gap: 16px;
            }
            .featured-stat-value {
                font-size: 1.4rem;
            }
            .partner-logos {
                gap: 16px;
            }
            .partner-logo-item {
                width: 80px;
                height: 48px;
                font-size: 0.7rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .hero-content h1 {
                font-size: 1.35rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }
            .hero-cta-group .btn {
                width: 100%;
                max-width: 260px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .case-card-metrics {
                gap: 12px;
            }
            .case-metric-value {
                font-size: 1rem;
            }
            .featured-case-content h3 {
                font-size: 1.2rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .channel-nav a {
                padding: 4px 8px;
                font-size: 0.72rem;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1B6EC2;
            --primary-dark: #155A8A;
            --primary-light: #3D8BD4;
            --secondary: #2C3E50;
            --accent: #E8F0FE;
            --accent-light: #F0F5FC;
            --bg: #FFFFFF;
            --card-bg: #F8FAFD;
            --bg-alt: #F5F7FA;
            --bg-warm: #FAFBFC;
            --text: #2C3E50;
            --text-heading: #1a2533;
            --text-light: #6C757D;
            --text-muted: #9099A3;
            --border: #E9ECEF;
            --border-light: #F0F2F5;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', '思源黑体', '阿里巴巴普惠体', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-brand-height: 48px;
            --nav-channel-height: 40px;
            --header-total-height: 88px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            padding-top: var(--header-total-height);
            margin: 0;
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1.5px;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }

        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.35;
            margin: 0 0 0.5em;
        }

        h1 {
            font-size: 2.25rem;
        }
        h2 {
            font-size: 1.75rem;
        }
        h3 {
            font-size: 1.375rem;
        }
        h4 {
            font-size: 1.125rem;
        }

        p {
            margin: 0 0 1em;
        }

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

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 40px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg);
            box-shadow: 0 1px 0 var(--border-light);
        }

        .brand-bar {
            height: var(--nav-brand-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            background: var(--bg);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-heading);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: -0.01em;
        }

        .brand-logo:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .brand-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            letter-spacing: 0;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: all var(--transition);
            font-size: 1.1rem;
        }

        .brand-actions .icon-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }

        .channel-bar {
            background: var(--bg-alt);
            border-top: 1px solid var(--border-light);
            height: var(--nav-channel-height);
            display: flex;
            align-items: center;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .channel-bar::-webkit-scrollbar {
            display: none;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            width: 100%;
        }

        .channel-nav a {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            letter-spacing: 0.01em;
        }

        .channel-nav a:hover {
            color: var(--primary);
            background: var(--accent);
            text-decoration: none;
        }

        .channel-nav a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
        }

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

        /* Mobile hamburger */
        .hamburger-btn {
            display: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: 1.3rem;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .hamburger-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }

        .mobile-nav-overlay {
            display: none;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
            text-decoration: none;
            font-family: var(--font-body);
            letter-spacing: 0.01em;
            border: 2px solid transparent;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            text-decoration: none;
        }

        .btn-lg {
            padding: 14px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.875rem;
            border-radius: var(--radius-sm);
        }

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

        .btn-white:hover {
            background: #f0f4f8;
            border-color: #f0f4f8;
            color: var(--primary-dark);
            text-decoration: none;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        /* Section */
        .section {
            padding: 80px 0;
        }

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

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

        .section-dark {
            background: var(--secondary);
            color: #e0e4e8;
        }

        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: var(--accent);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 1.75rem;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 40px;
            max-width: 680px;
        }

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

        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }

        /* Pricing Hero */
        .pricing-hero {
            position: relative;
            background: linear-gradient(135deg, #1a2a3a 0%, #1B3248 30%, #1B6EC2 100%);
            color: #fff;
            padding: 100px 0 80px;
            overflow: hidden;
            min-height: 55vh;
            display: flex;
            align-items: center;
        }

        .pricing-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }

        .pricing-hero .container {
            position: relative;
            z-index: 1;
        }

        .pricing-hero h1 {
            color: #fff;
            font-size: 2.6rem;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .pricing-hero .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .pricing-hero .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }

        .pricing-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.875rem;
            color: #fff;
            font-weight: 500;
        }

        .pricing-hero .hero-badge-icon {
            font-size: 1rem;
        }

        /* Pricing Cards */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: -40px;
            position: relative;
            z-index: 2;
        }

        .pricing-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition-slow);
            position: relative;
            display: flex;
            flex-direction: column;
            text-align: center;
        }

        .pricing-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .pricing-card.featured {
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
            background: #fff;
            transform: scale(1.04);
            z-index: 3;
        }

        .pricing-card.featured:hover {
            transform: scale(1.04) translateY(-4px);
            box-shadow: 0 12px 36px rgba(27, 110, 194, 0.2);
        }

        .pricing-card .popular-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 6px 20px;
            border-radius: 20px;
            white-space: nowrap;
            letter-spacing: 0.03em;
            box-shadow: 0 4px 12px rgba(27, 110, 194, 0.35);
        }

        .pricing-card .plan-name {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 6px;
        }

        .pricing-card .plan-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.5;
            min-height: 40px;
        }

        .pricing-card .plan-price {
            font-size: 3rem;
            font-weight: 800;
            color: var(--text-heading);
            line-height: 1;
            margin-bottom: 4px;
            font-family: var(--font-heading);
        }

        .pricing-card .plan-price .currency {
            font-size: 1.4rem;
            font-weight: 600;
            vertical-align: super;
            margin-right: 2px;
        }

        .pricing-card .plan-price .period {
            font-size: 0.9rem;
            font-weight: 400;
            color: var(--text-muted);
            margin-left: 2px;
        }

        .pricing-card .plan-price-note {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .pricing-card .plan-features {
            text-align: left;
            margin-bottom: 28px;
            flex-grow: 1;
        }

        .pricing-card .plan-features li {
            padding: 7px 0;
            font-size: 0.9rem;
            color: var(--text);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.5;
            border-bottom: 1px solid var(--border-light);
        }

        .pricing-card .plan-features li:last-child {
            border-bottom: none;
        }

        .pricing-card .plan-features .check-icon {
            color: #28a745;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
            font-size: 1rem;
        }

        .pricing-card .plan-features .dash-icon {
            color: #ccc;
            flex-shrink: 0;
            margin-top: 2px;
            font-size: 1rem;
        }

        .pricing-card .btn {
            width: 100%;
            text-align: center;
            justify-content: center;
        }

        /* Feature Comparison */
        .compare-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            background: #fff;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 0.9rem;
        }

        .compare-table thead th {
            background: var(--secondary);
            color: #fff;
            padding: 16px 20px;
            text-align: center;
            font-weight: 600;
            font-size: 0.95rem;
            white-space: nowrap;
            position: sticky;
            top: 0;
        }

        .compare-table thead th:first-child {
            text-align: left;
            background: #1e2d3d;
            min-width: 180px;
        }

        .compare-table thead th.featured-col {
            background: var(--primary);
            position: relative;
        }

        .compare-table thead th.featured-col::after {
            content: '推荐';
            position: absolute;
            top: -10px;
            right: 16px;
            background: #ff6b35;
            color: #fff;
            font-size: 0.7rem;
            padding: 3px 10px;
            border-radius: 10px;
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        .compare-table tbody td {
            padding: 14px 20px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            color: var(--text);
        }

        .compare-table tbody td:first-child {
            text-align: left;
            font-weight: 500;
            color: var(--text-heading);
        }

        .compare-table tbody tr:hover {
            background: var(--accent-light);
        }

        .compare-table tbody tr:nth-child(even) {
            background: var(--bg-warm);
        }

        .compare-table tbody tr:nth-child(even):hover {
            background: var(--accent-light);
        }

        .compare-table .icon-check {
            color: #28a745;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .compare-table .icon-dash {
            color: #ccc;
            font-size: 1rem;
        }

        .compare-table .icon-limited {
            color: #f0ad4e;
            font-weight: 600;
            font-size: 0.85rem;
        }

        /* Highlight Section */
        .highlight-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .highlight-block.reverse {
            direction: rtl;
        }

        .highlight-block.reverse>* {
            direction: ltr;
        }

        .highlight-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

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

        .highlight-content h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
        }

        .highlight-content .highlight-list {
            margin-top: 20px;
        }

        .highlight-content .highlight-list li {
            padding: 10px 0;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.95rem;
        }

        .highlight-content .highlight-list li:last-child {
            border-bottom: none;
        }

        .highlight-content .highlight-list .hl-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 0.9rem;
        }

        /* Guarantee */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .guarantee-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-slow);
        }

        .guarantee-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .guarantee-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
        }

        .guarantee-card h4 {
            margin-bottom: 8px;
            font-size: 1.05rem;
        }

        .guarantee-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin: 0;
        }

        /* Testimonial */
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }

        .testimonial-card .quote-mark {
            font-size: 4rem;
            color: var(--accent);
            line-height: 1;
            margin-bottom: -10px;
            font-family: Georgia, serif;
        }

        .testimonial-card .quote-text {
            font-size: 1.1rem;
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 20px;
            font-style: italic;
        }

        .testimonial-card .quote-author {
            font-weight: 700;
            color: var(--text-heading);
            font-size: 0.95rem;
        }

        .testimonial-card .quote-role {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

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

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            width: 100%;
            padding: 18px 20px;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-heading);
            background: var(--card-bg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
            font-family: var(--font-body);
        }

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

        .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-slow);
            font-size: 0.8rem;
            color: var(--text-muted);
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: #e9ecef;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 20px 20px;
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1B6EC2 0%, #155A8A 100%);
            color: #fff;
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.1;
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 32px;
        }

        .cta-section .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #c0c7cf;
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }

        .footer-col ul li {
            padding: 4px 0;
            font-size: 0.9rem;
        }

        .footer-col ul li a {
            color: #a0a8b2;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: none;
        }

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 0.85rem;
            color: #889099;
            line-height: 1.8;
        }

        .footer-bottom a {
            color: #a0a8b2;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .pricing-card.featured {
                transform: scale(1);
            }

            .pricing-card.featured:hover {
                transform: translateY(-4px);
            }

            .highlight-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .highlight-block.reverse {
                direction: ltr;
            }

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

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

            .pricing-hero h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }

            .brand-bar {
                padding: 0 20px;
            }

            .channel-nav {
                padding: 0 20px;
                gap: 2px;
            }

            .channel-nav a {
                padding: 5px 10px;
                font-size: 0.8rem;
            }

            .hamburger-btn {
                display: flex;
            }

            .channel-bar {
                position: fixed;
                top: var(--nav-brand-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: #fff;
                height: auto;
                flex-direction: column;
                align-items: stretch;
                padding: 20px;
                transform: translateX(100%);
                transition: transform var(--transition-slow);
                z-index: 999;
                overflow-y: auto;
            }

            .channel-bar.open {
                transform: translateX(0);
            }

            .channel-nav {
                flex-direction: column;
                align-items: stretch;
                padding: 0;
            }

            .channel-nav a {
                padding: 12px 16px;
                border-radius: var(--radius);
                font-size: 1rem;
                justify-content: center;
            }

            .mobile-nav-overlay {
                display: none;
                position: fixed;
                inset: 0;
                background: rgba(0, 0, 0, 0.4);
                z-index: 998;
            }

            .mobile-nav-overlay.open {
                display: block;
            }

            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin-left: auto;
                margin-right: auto;
                margin-top: -20px;
            }

            .pricing-card.featured {
                transform: scale(1);
            }

            .pricing-card.featured:hover {
                transform: translateY(-4px);
            }

            .section {
                padding: 56px 0;
            }

            .pricing-hero {
                padding: 60px 0 50px;
                min-height: auto;
            }

            .pricing-hero h1 {
                font-size: 1.8rem;
            }

            .pricing-hero .hero-subtitle {
                font-size: 1rem;
            }

            .guarantee-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin: 0 auto;
            }

            .compare-table-wrap {
                margin: 0 -20px;
                border-radius: 0;
                border-left: none;
                border-right: none;
            }

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

            .cta-section h2 {
                font-size: 1.5rem;
            }

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

        @media (max-width: 520px) {
            .pricing-hero h1 {
                font-size: 1.5rem;
            }

            .pricing-hero .hero-badges {
                gap: 8px;
            }

            .pricing-hero .hero-badge {
                padding: 6px 12px;
                font-size: 0.8rem;
            }

            .pricing-card .plan-price {
                font-size: 2.4rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .btn-lg {
                padding: 12px 24px;
                font-size: 1rem;
            }

            .testimonial-card {
                padding: 24px 20px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1B6EC2;
            --primary-dark: #155A8A;
            --primary-light: #3D8BD4;
            --secondary: #2C3E50;
            --accent: #E8F0FE;
            --accent-light: #F0F5FC;
            --bg: #FFFFFF;
            --card-bg: #F8FAFD;
            --bg-alt: #F5F7FA;
            --bg-warm: #FAFBFC;
            --text: #2C3E50;
            --text-heading: #1a2533;
            --text-light: #6C757D;
            --text-muted: #9099A3;
            --border: #E9ECEF;
            --border-light: #F0F2F5;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', '思源黑体', '阿里巴巴普惠体', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-brand-height: 48px;
            --nav-channel-height: 40px;
            --header-total-height: 88px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            padding-top: var(--header-total-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1.5px;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 40px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg);
            box-shadow: 0 1px 0 var(--border-light);
        }
        .brand-bar {
            height: var(--nav-brand-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            background: var(--bg);
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-heading);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: -0.01em;
        }
        .brand-logo:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .brand-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: all var(--transition);
            font-size: 1.1rem;
        }
        .brand-actions .icon-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }
        .channel-bar {
            background: var(--bg-alt);
            border-top: 1px solid var(--border-light);
            height: var(--nav-channel-height);
            display: flex;
            align-items: center;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .channel-bar::-webkit-scrollbar {
            display: none;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            width: 100%;
        }
        .channel-nav a {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .channel-nav a:hover {
            color: var(--primary);
            background: var(--accent);
            text-decoration: none;
        }
        .channel-nav a.active {
            color: var(--primary);
            background: var(--accent);
            font-weight: 600;
        }

        /* Mobile menu toggle */
        .mobile-menu-toggle {
            display: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 1.3rem;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .mobile-menu-toggle:hover {
            background: var(--accent);
            color: var(--primary);
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            min-height: 50vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27, 110, 194, 0.75) 0%, rgba(44, 62, 80, 0.65) 100%);
            z-index: 1;
        }
        .page-banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            padding: 60px 40px;
            max-width: 800px;
        }
        .page-banner-content h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        .page-banner-content .banner-subtitle {
            font-size: 1.15rem;
            opacity: 0.92;
            line-height: 1.6;
            max-width: 600px;
            margin: 0 auto;
        }
        .banner-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 0.9rem;
            opacity: 0.85;
        }
        .banner-breadcrumb a {
            color: #fff;
            text-decoration: none;
            opacity: 0.8;
        }
        .banner-breadcrumb a:hover {
            opacity: 1;
            text-decoration: underline;
        }
        .banner-breadcrumb .separator {
            opacity: 0.5;
        }

        /* Section common */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-warm {
            background: var(--bg-warm);
        }
        .section-heading {
            margin-bottom: 48px;
        }
        .section-heading h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-heading .heading-line {
            width: 50px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            margin-bottom: 16px;
        }
        .section-heading p {
            color: var(--text-light);
            font-size: 1.05rem;
            line-height: 1.7;
            max-width: 700px;
        }

        /* Brand Story */
        .brand-story-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 60px;
            align-items: center;
        }
        .brand-story-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .brand-story-image img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-lg);
        }
        .brand-story-image::after {
            content: '';
            position: absolute;
            bottom: -20px;
            right: -20px;
            width: 120px;
            height: 120px;
            background: var(--accent);
            border-radius: 50%;
            z-index: -1;
            opacity: 0.6;
        }
        .brand-story-text h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 16px;
        }
        .brand-story-text p {
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 14px;
            font-size: 1.02rem;
        }
        .brand-story-text .highlight-stat {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 1.1rem;
            padding: 8px 18px;
            border-radius: 20px;
            margin-top: 8px;
        }

        /* Mission & Vision */
        .mission-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr 0.9fr;
            gap: 32px;
        }
        .mission-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition-slow);
            position: relative;
            overflow: hidden;
        }
        .mission-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .mission-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
        }
        .mission-card.featured {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }
        .mission-card.featured::before {
            background: #fff;
        }
        .mission-card.featured h3 {
            color: #fff;
        }
        .mission-card.featured p {
            color: rgba(255, 255, 255, 0.88);
        }
        .mission-card .mission-icon {
            width: 48px;
            height: 48px;
            background: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .mission-card.featured .mission-icon {
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
        }
        .mission-card h3 {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
        }
        .mission-card p {
            color: var(--text-light);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* Stats */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }
        .stat-item {
            padding: 32px 20px;
            background: var(--bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-label {
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 500;
        }

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 15px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--border);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 40px;
            padding-left: 40px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: -33px;
            top: 4px;
            width: 18px;
            height: 18px;
            background: var(--primary);
            border-radius: 50%;
            border: 3px solid var(--bg);
            box-shadow: 0 0 0 3px var(--primary-light);
            z-index: 2;
        }
        .timeline-year {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 6px;
            display: inline-block;
            background: var(--accent);
            padding: 4px 14px;
            border-radius: 20px;
        }
        .timeline-content {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 24px 28px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .timeline-content:hover {
            box-shadow: var(--shadow);
        }
        .timeline-content h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 6px;
        }
        .timeline-content p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.6;
            margin: 0;
        }
        .timeline-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0 40px;
        }
        .timeline-grid .timeline {
            padding-left: 30px;
        }
        .timeline-grid .timeline::before {
            left: 10px;
        }
        .timeline-grid .timeline-dot {
            left: -28px;
        }

        /* Team */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .team-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: all var(--transition-slow);
            text-align: center;
        }
        .team-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .team-card.wide {
            grid-column: span 2;
            display: flex;
            flex-direction: row;
            text-align: left;
            align-items: center;
        }
        .team-card.wide .team-photo {
            width: 45%;
            flex-shrink: 0;
            min-height: 260px;
        }
        .team-card.wide .team-info {
            padding: 28px 24px;
            flex: 1;
        }
        .team-photo {
            width: 100%;
            height: 220px;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .team-photo img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .team-card:hover .team-photo img {
            transform: scale(1.05);
        }
        .team-info {
            padding: 20px 16px;
        }
        .team-info h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 4px;
        }
        .team-info .team-role {
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 8px;
            display: block;
        }
        .team-info p {
            color: var(--text-light);
            font-size: 0.9rem;
            line-height: 1.5;
            margin: 0;
        }

        /* Advantages */
        .advantages-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .advantage-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 24px;
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .advantage-item:hover {
            box-shadow: var(--shadow);
            border-color: var(--accent);
        }
        .advantage-icon {
            width: 52px;
            height: 52px;
            background: var(--accent);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .advantage-text h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 6px;
        }
        .advantage-text p {
            color: var(--text-light);
            font-size: 0.93rem;
            line-height: 1.6;
            margin: 0;
        }

        /* Culture */
        .culture-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .culture-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            order: 2;
        }
        .culture-image img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-lg);
        }
        .culture-text {
            order: 1;
        }
        .culture-text h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 16px;
        }
        .culture-text p {
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 12px;
            font-size: 1rem;
        }
        .culture-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
        }
        .culture-tag {
            background: var(--accent);
            color: var(--primary);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .culture-tag:hover {
            background: var(--primary);
            color: #fff;
        }

        /* Partners */
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            align-items: center;
        }
        .partner-logo {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 90px;
        }
        .partner-logo:hover {
            box-shadow: var(--shadow);
            border-color: var(--accent);
        }
        .partner-logo .partner-placeholder {
            font-family: var(--font-heading);
            font-weight: 700;
            color: var(--text-muted);
            font-size: 0.95rem;
            letter-spacing: 0.02em;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #1a2d3d 100%);
            color: #fff;
            text-align: center;
            padding: 70px 0;
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .cta-section p {
            opacity: 0.88;
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius);
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 2px solid var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            text-decoration: none;
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }
        .btn-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.8);
            padding: 50px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }
            .brand-bar {
                padding: 0 24px;
            }
            .channel-nav {
                padding: 0 24px;
            }
            .brand-story-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .mission-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .team-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .team-card.wide {
                grid-column: span 2;
            }
            .timeline-grid {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .advantages-list {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .culture-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .culture-image {
                order: 1;
            }
            .culture-text {
                order: 2;
            }
            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
            .page-banner-content h1 {
                font-size: 2.2rem;
            }
            .section {
                padding: 56px 0;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .brand-bar {
                padding: 0 16px;
            }
            .channel-nav {
                padding: 0 16px;
                gap: 2px;
            }
            .channel-nav a {
                padding: 5px 10px;
                font-size: 0.8rem;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .channel-bar {
                overflow-x: auto;
            }
            .page-banner {
                min-height: 40vh;
            }
            .page-banner-content {
                padding: 40px 20px;
            }
            .page-banner-content h1 {
                font-size: 1.8rem;
            }
            .page-banner-content .banner-subtitle {
                font-size: 0.95rem;
            }
            .mission-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-number {
                font-size: 2.2rem;
            }
            .team-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .team-card.wide {
                grid-column: span 1;
                flex-direction: column;
            }
            .team-card.wide .team-photo {
                width: 100%;
                min-height: 200px;
            }
            .partners-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .section {
                padding: 40px 0;
            }
            .section-heading h2 {
                font-size: 1.6rem;
            }
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .timeline {
                padding-left: 24px;
            }
            .timeline::before {
                left: 8px;
            }
            .timeline-dot {
                left: -26px;
                width: 14px;
                height: 14px;
            }
            .timeline-item {
                padding-left: 24px;
            }
            .advantages-list {
                grid-template-columns: 1fr;
            }
            .brand-story-image::after {
                width: 80px;
                height: 80px;
                bottom: -12px;
                right: -12px;
            }
        }

        @media (max-width: 520px) {
            .page-banner-content h1 {
                font-size: 1.5rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .partners-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .partner-logo {
                padding: 16px;
                min-height: 70px;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 1rem;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #1B6EC2;
            --primary-dark: #155A8A;
            --primary-light: #3D8BD4;
            --secondary: #2C3E50;
            --accent: #E8F0FE;
            --accent-light: #F0F5FC;
            --bg: #FFFFFF;
            --card-bg: #F8FAFD;
            --bg-alt: #F5F7FA;
            --bg-warm: #FAFBFC;
            --text: #2C3E50;
            --text-heading: #1a2533;
            --text-light: #6C757D;
            --text-muted: #9099A3;
            --border: #E9ECEF;
            --border-light: #F0F2F5;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', '思源黑体', '阿里巴巴普惠体', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-brand-height: 48px;
            --nav-channel-height: 40px;
            --header-total-height: 88px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            padding-top: var(--header-total-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-thickness: 1.5px;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 40px;
        }

        .section {
            padding: 80px 0;
        }
        .section-sm {
            padding: 48px 0;
        }
        .section-lg {
            padding: 100px 0;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 680px;
            line-height: 1.6;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-title {
            margin-bottom: 10px;
        }
        .section-header .section-subtitle {
            margin: 0 auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.02em;
            cursor: pointer;
            font-family: inherit;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 2px solid var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            text-decoration: none;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 1.05rem;
            border-radius: var(--radius);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }
        .badge-primary {
            background: var(--accent);
            color: var(--primary);
        }
        .badge-warm {
            background: #FFF3E0;
            color: #E67E22;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg);
            box-shadow: 0 1px 0 var(--border-light);
        }
        .brand-bar {
            height: var(--nav-brand-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            background: var(--bg);
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-heading);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: -0.01em;
        }
        .brand-logo:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .brand-logo-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            letter-spacing: 0;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            transition: all var(--transition);
            font-size: 1.1rem;
        }
        .brand-actions .icon-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }
        .channel-bar {
            background: var(--bg-alt);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .channel-bar::-webkit-scrollbar {
            height: 0;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 40px;
            height: var(--nav-channel-height);
        }
        .channel-nav a {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .channel-nav a:hover {
            color: var(--primary);
            background: var(--accent);
            text-decoration: none;
        }
        .channel-nav a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-xs);
        }
        .channel-nav a.active:hover {
            color: #fff;
            background: var(--primary-dark);
        }

        .hamburger-btn {
            display: none;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: 1.4rem;
            transition: all var(--transition);
            flex-shrink: 0;
        }
        .hamburger-btn:hover {
            background: var(--accent);
            color: var(--primary);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-brand-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-slow);
        }
        .mobile-nav-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--nav-brand-height);
            right: 0;
            width: 280px;
            max-width: 85vw;
            bottom: 0;
            background: var(--bg);
            z-index: 1000;
            padding: 20px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform var(--transition-slow);
            box-shadow: var(--shadow-lg);
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav-panel.open {
            transform: translateX(0);
        }
        .mobile-nav-panel a {
            display: block;
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius);
            transition: all var(--transition);
            text-decoration: none;
        }
        .mobile-nav-panel a:hover {
            background: var(--accent);
            color: var(--primary);
            text-decoration: none;
        }
        .mobile-nav-panel a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        /* Hero */
        .hero-faq {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 45vh;
            display: flex;
            align-items: center;
            padding: 80px 0;
        }
        .hero-faq::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(27, 110, 194, 0.82) 0%, rgba(44, 62, 80, 0.7) 100%);
            z-index: 1;
        }
        .hero-faq .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .hero-faq .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            margin-bottom: 16px;
            backdrop-filter: blur(4px);
            letter-spacing: 0.03em;
        }
        .hero-faq h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        .hero-faq .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.9);
            max-width: 600px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }
        .hero-search-wrap {
            display: flex;
            max-width: 520px;
            margin: 0 auto;
            gap: 0;
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .hero-search-wrap input {
            flex: 1;
            padding: 14px 20px;
            border: none;
            outline: none;
            font-size: 1rem;
            color: var(--text);
            background: #fff;
            min-width: 0;
        }
        .hero-search-wrap input::placeholder {
            color: var(--text-muted);
        }
        .hero-search-wrap button {
            padding: 14px 24px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: background var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .hero-search-wrap button:hover {
            background: var(--primary-dark);
        }

        /* FAQ Category Pills */
        .faq-categories {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .faq-cat-pill {
            padding: 10px 20px;
            font-size: 0.9rem;
            font-weight: 500;
            border-radius: 24px;
            border: 2px solid var(--border);
            background: var(--bg);
            color: var(--text-light);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            font-family: inherit;
            letter-spacing: 0.01em;
        }
        .faq-cat-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--accent-light);
        }
        .faq-cat-pill.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* FAQ Accordion */
        .faq-group {
            margin-bottom: 48px;
        }
        .faq-group-title {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.01em;
        }
        .faq-group-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 10px;
            background: var(--card-bg);
            transition: all var(--transition);
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-xs);
        }
        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow);
            background: #fff;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-heading);
            text-align: left;
            cursor: pointer;
            transition: all var(--transition);
            gap: 12px;
            font-family: inherit;
            letter-spacing: 0.01em;
            background: transparent;
            border: none;
            line-height: 1.5;
        }
        .faq-item.open .faq-question {
            color: var(--primary);
            background: var(--accent-light);
        }
        .faq-question:hover {
            background: var(--accent-light);
        }
        .faq-arrow {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform var(--transition-slow);
            font-size: 0.7rem;
            color: var(--text-light);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 600px;
        }
        .faq-answer-inner {
            padding: 0 20px 20px;
            color: var(--text);
            line-height: 1.8;
            font-size: 0.95rem;
        }
        .faq-answer-inner p {
            margin-bottom: 8px;
        }
        .faq-answer-inner p:last-child {
            margin-bottom: 0;
        }
        .faq-answer-inner ul {
            padding-left: 20px;
            margin-bottom: 8px;
        }
        .faq-answer-inner ul li {
            margin-bottom: 4px;
        }

        /* Quick Links */
        .quick-links-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .quick-link-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            text-align: center;
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
            color: var(--text);
            display: block;
        }
        .quick-link-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            text-decoration: none;
            color: var(--text);
        }
        .quick-link-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-size: 1.4rem;
            color: var(--primary);
            transition: all var(--transition);
        }
        .quick-link-card:hover .quick-link-icon {
            background: var(--primary);
            color: #fff;
        }
        .quick-link-card h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 4px;
            font-family: var(--font-heading);
        }
        .quick-link-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* CTA Section */
        .cta-section {
            background: var(--secondary);
            color: #fff;
            text-align: center;
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--primary);
            border: 2px solid #fff;
            font-weight: 700;
        }
        .cta-section .btn:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }

        /* Contact mini */
        .contact-mini-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .contact-mini-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition);
        }
        .contact-mini-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
            transform: translateY(-2px);
        }
        .contact-mini-icon {
            font-size: 2rem;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .contact-mini-card h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 6px;
        }
        .contact-mini-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        .highlight-box {
            background: var(--accent-light);
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
            font-size: 0.9rem;
            color: var(--text);
            line-height: 1.6;
        }

        .no-results {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            display: none;
        }
        .no-results.show {
            display: block;
        }
        .no-results .no-results-icon {
            font-size: 3rem;
            margin-bottom: 12px;
            opacity: 0.6;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: #cbd5e0;
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #cbd5e0;
            font-size: 0.9rem;
            transition: color var(--transition);
            text-decoration: none;
        }
        .footer-col ul li a:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.8rem;
            color: #8899aa;
            line-height: 1.8;
        }
        .footer-bottom a {
            color: #cbd5e0;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
            text-decoration: underline;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .quick-links-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .contact-mini-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .hero-faq h1 {
                font-size: 2.2rem;
            }
            .section {
                padding: 60px 0;
            }
            .container {
                padding: 0 24px;
            }
        }

        @media (max-width: 768px) {
            .channel-nav {
                display: none;
            }
            .channel-bar {
                border-bottom: none;
                height: auto;
            }
            .hamburger-btn {
                display: flex;
            }
            .mobile-nav-overlay {
                display: block;
            }
            .mobile-nav-panel {
                display: flex;
            }
            .brand-bar {
                padding: 0 16px;
            }
            .brand-actions .icon-btn:first-of-type {
                display: none;
            }
            .hero-faq {
                min-height: 38vh;
                padding: 60px 0;
            }
            .hero-faq h1 {
                font-size: 1.7rem;
            }
            .hero-faq .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-search-wrap {
                max-width: 100%;
            }
            .quick-links-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .contact-mini-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .faq-categories {
                gap: 6px;
            }
            .faq-cat-pill {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .faq-group-title {
                font-size: 1.2rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 16px;
                font-size: 0.85rem;
            }
            .container {
                padding: 0 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 48px 0;
            }
        }

        @media (max-width: 520px) {
            .quick-links-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .hero-faq h1 {
                font-size: 1.4rem;
            }
            .hero-search-wrap input {
                padding: 12px 14px;
                font-size: 0.9rem;
            }
            .hero-search-wrap button {
                padding: 12px 16px;
                font-size: 0.85rem;
            }
            .faq-cat-pill {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .faq-group-title {
                font-size: 1.1rem;
            }
            .faq-question {
                font-size: 0.85rem;
                padding: 12px 14px;
            }
            .mobile-nav-panel {
                width: 260px;
                max-width: 80vw;
            }
        }