/* roulang page: index */
:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-white: #ffffff;
            --bg-light: #f8fafc;
            --bg-lighter: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

        *,
        *::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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }
        input {
            font-family: inherit;
            font-size: 1rem;
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 var(--spacing-md);
            }
        }

        /* ========== 导航 ========== */
        .nav-capsule {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100vw - 32px);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: var(--radius-full);
            padding: 8px 20px;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-slow);
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .nav-capsule.scrolled {
            top: 8px;
            box-shadow: var(--shadow-xl);
            background: rgba(255, 255, 255, 0.96);
        }
        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }
        .nav-logo span {
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }
        .nav-links a.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 6px;
            border-radius: var(--radius);
            flex-shrink: 0;
        }
        @media (max-width: 1024px) {
            .nav-capsule {
                padding: 8px 14px;
                gap: 12px;
            }
            .nav-links a {
                padding: 7px 11px;
                font-size: 0.82rem;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
        }
        @media (max-width: 768px) {
            .nav-capsule {
                top: 8px;
                padding: 8px 14px;
                border-radius: var(--radius-lg);
                flex-wrap: wrap;
                justify-content: space-between;
                gap: 8px;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 2px;
                background: #fff;
                border-radius: var(--radius);
                padding: 8px;
                box-shadow: var(--shadow-md);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                text-align: center;
                border-radius: var(--radius);
                padding: 10px 14px;
            }
            .nav-toggle {
                display: block;
            }
        }

        /* ========== Hero ========== */
        .hero-section {
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            padding: 120px 20px 80px;
            background: linear-gradient(170deg, #f0f7ff 0%, #e8f0fe 25%, #f8fafc 60%, #ffffff 100%);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 750px;
            width: 100%;
        }
        .hero-badge {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.03em;
            color: #0f172a;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--primary), #6366f1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }
        .hero-search-wrap {
            display: flex;
            max-width: 560px;
            margin: 0 auto 28px;
            background: #fff;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            border: 2px solid transparent;
            transition: all var(--transition);
        }
        .hero-search-wrap:focus-within {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-xl), 0 0 0 8px rgba(59, 130, 246, 0.08);
        }
        .hero-search-wrap input {
            flex: 1;
            padding: 16px 22px;
            border: none;
            outline: none;
            font-size: 1rem;
            color: var(--text-primary);
            background: transparent;
            min-width: 0;
        }
        .hero-search-wrap input::placeholder {
            color: var(--text-muted);
        }
        .hero-search-wrap button {
            padding: 16px 28px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 0 var(--radius-full) var(--radius-full) 0;
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .hero-search-wrap button:hover {
            background: var(--primary-dark);
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .hero-tag {
            display: inline-block;
            padding: 8px 18px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-full);
            font-size: 0.88rem;
            color: var(--text-secondary);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .hero-tag:hover {
            background: var(--primary-bg);
            border-color: var(--primary-light);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow);
        }
        .hero-tag .icon {
            margin-right: 4px;
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: 70vh;
                padding: 100px 16px 60px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-search-wrap {
                flex-direction: column;
                border-radius: var(--radius-lg);
            }
            .hero-search-wrap input {
                padding: 14px 18px;
                border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            }
            .hero-search-wrap button {
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                padding: 14px;
                width: 100%;
            }
            .hero-tags {
                gap: 6px;
            }
            .hero-tag {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: var(--spacing-3xl) 0;
        }
        .section-alt {
            background: var(--bg-light);
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-2xl);
        }
        .section-header .label {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.8;
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .section-header p {
                font-size: 0.95rem;
            }
        }

        /* ========== 卡片 ========== */
        .card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: var(--spacing-xl);
            transition: all var(--transition-slow);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .card-img {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: var(--spacing-md);
            aspect-ratio: 16 / 10;
            background: var(--bg-lighter);
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card:hover .card-img img {
            transform: scale(1.04);
        }
        .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            margin-bottom: 10px;
            background: #fef3c7;
            color: #b45309;
        }
        .card h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            flex-grow: 1;
            margin-bottom: 14px;
        }
        .card-link {
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition);
        }
        .card-link:hover {
            gap: 8px;
            color: var(--primary-dark);
        }
        .card-link i {
            font-size: 0.75rem;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(26, 86, 219, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 18px rgba(26, 86, 219, 0.35);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-bg);
            border-color: var(--primary-dark);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            box-shadow: 0 6px 18px rgba(245, 158, 11, 0.35);
            transform: translateY(-1px);
        }
        .btn-lg {
            padding: 16px 32px;
            font-size: 1.05rem;
            border-radius: var(--radius-full);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
            border-radius: var(--radius-full);
        }

        /* ========== 入口矩阵 ========== */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }
        @media (max-width: 1024px) {
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .matrix-grid {
                grid-template-columns: 1fr;
            }
        }
        .matrix-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }
        .matrix-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        .matrix-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            background: var(--primary-bg);
            color: var(--primary);
            flex-shrink: 0;
        }
        .matrix-card h3 {
            font-size: 1rem;
            font-weight: 700;
        }
        .matrix-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== 里程碑/时间线 ========== */
        .timeline {
            position: relative;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary-light), var(--primary-bg), var(--primary-light));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: var(--spacing-xl);
            padding-left: var(--spacing-lg);
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 14px;
            height: 14px;
            background: #fff;
            border: 3px solid var(--primary);
            border-radius: 50%;
            z-index: 2;
        }
        .timeline-item .year {
            font-weight: 800;
            color: var(--primary);
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .timeline-item h4 {
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .timeline-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .timeline {
                padding-left: 28px;
            }
            .timeline::before {
                left: 10px;
            }
            .timeline-item::before {
                left: -22px;
                width: 12px;
                height: 12px;
            }
            .timeline-item {
                padding-left: 12px;
            }
        }

        /* ========== 资讯区 ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: var(--spacing-2xl);
        }
        .news-list-item {
            display: flex;
            gap: var(--spacing-md);
            padding: var(--spacing-lg) 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .news-list-item:hover {
            background: var(--bg-lighter);
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: var(--radius);
        }
        .news-date {
            flex-shrink: 0;
            width: 60px;
            text-align: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.85rem;
            line-height: 1.3;
            padding-top: 3px;
        }
        .news-date .day {
            display: block;
            font-size: 1.6rem;
            font-weight: 800;
            line-height: 1;
        }
        .news-info h4 {
            font-size: 1rem;
            margin-bottom: 4px;
            font-weight: 600;
        }
        .news-info p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 6px;
        }
        .news-sidebar {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: var(--spacing-xl);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .news-sidebar h3 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-bg);
        }
        .news-sidebar ul li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: color var(--transition);
            cursor: pointer;
        }
        .news-sidebar ul li:hover {
            color: var(--primary);
        }
        .news-sidebar ul li i {
            color: var(--accent);
            margin-right: 6px;
            font-size: 0.7rem;
        }
        @media (max-width: 768px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
                order: -1;
            }
            .news-list-item {
                flex-direction: column;
                gap: 6px;
            }
            .news-date {
                width: auto;
                text-align: left;
                display: flex;
                gap: 8px;
                align-items: baseline;
            }
            .news-date .day {
                font-size: 1.2rem;
            }
        }

        /* ========== 口碑气泡 ========== */
        .bubble-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .bubble-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            border: 1px solid var(--border-light);
            position: relative;
            transition: all var(--transition-slow);
        }
        .bubble-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .bubble-card::after {
            content: '"';
            position: absolute;
            top: 14px;
            right: 20px;
            font-size: 3rem;
            color: var(--primary-bg);
            font-weight: 800;
            line-height: 1;
            pointer-events: none;
        }
        .bubble-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg-lighter);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .bubble-card .name {
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 4px;
        }
        .bubble-card .role {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .bubble-card .comment {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }
        @media (max-width: 768px) {
            .bubble-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 优惠阶梯 ========== */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
            align-items: stretch;
        }
        .tier-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 2px solid var(--border-light);
            padding: var(--spacing-xl);
            text-align: center;
            transition: all var(--transition-slow);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }
        .tier-card.featured {
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
            transform: scale(1.03);
            z-index: 2;
            background: #fff;
        }
        .tier-card.featured::before {
            content: '热门推荐';
            position: absolute;
            top: 16px;
            right: -28px;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 32px;
            transform: rotate(45deg);
            letter-spacing: 0.04em;
        }
        .tier-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .tier-card.featured:hover {
            transform: scale(1.03) translateY(-3px);
        }
        .tier-level {
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .tier-price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .tier-price span {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }
        .tier-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 14px;
            line-height: 1.6;
        }
        .tier-benefits {
            text-align: left;
            font-size: 0.82rem;
            color: var(--text-secondary);
            flex-grow: 1;
            margin-bottom: 16px;
            line-height: 1.8;
        }
        .tier-benefits li::before {
            content: '✓ ';
            color: #10b981;
            font-weight: 700;
        }
        .tier-limit {
            font-size: 0.75rem;
            color: #ef4444;
            font-weight: 600;
            margin-bottom: 12px;
        }
        @media (max-width: 1024px) {
            .tier-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tier-card.featured {
                transform: scale(1);
            }
            .tier-card.featured:hover {
                transform: translateY(-3px);
            }
        }
        @media (max-width: 520px) {
            .tier-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 平台保障 ========== */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }
        .guarantee-item {
            text-align: center;
            padding: var(--spacing-xl);
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .guarantee-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .guarantee-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 12px;
            display: block;
        }
        .guarantee-item h3 {
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .guarantee-item p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: var(--spacing-lg) 0;
            cursor: pointer;
            transition: all var(--transition);
        }
        .faq-item:hover {
            background: var(--bg-lighter);
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: var(--radius);
        }
        .faq-q {
            font-weight: 700;
            font-size: 1.05rem;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-primary);
        }
        .faq-q .q-icon {
            color: var(--primary);
            flex-shrink: 0;
            font-weight: 800;
            font-size: 1.1rem;
        }
        .faq-a {
            padding-left: 28px;
            margin-top: 8px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item.open .faq-q {
            color: var(--primary);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #1a56db 0%, #1e40af 40%, #1e3a8a 100%);
            color: #fff;
            text-align: center;
            padding: var(--spacing-3xl) 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            margin-bottom: 24px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }
        .cta-section .btn {
            font-size: 1.05rem;
            padding: 16px 36px;
        }

        /* ========== App下载 ========== */
        .app-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-2xl);
            align-items: center;
        }
        .app-mockup {
            background: var(--bg-lighter);
            border-radius: var(--radius-xl);
            aspect-ratio: 4 / 3;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .app-mockup img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .app-info h2 {
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .app-info p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .app-btns {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        @media (max-width: 768px) {
            .app-section {
                grid-template-columns: 1fr;
            }
            .app-mockup {
                order: 1;
            }
            .app-info {
                order: 2;
            }
        }

        /* ========== 内容日历 ========== */
        .calendar-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .calendar-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: var(--spacing-lg);
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: all var(--transition);
        }
        .calendar-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .calendar-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
            margin-top: 6px;
        }
        .calendar-item .cal-date {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
            min-width: 60px;
        }
        .calendar-item .cal-info h4 {
            font-size: 0.95rem;
            margin-bottom: 3px;
        }
        .calendar-item .cal-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        @media (max-width: 768px) {
            .calendar-list {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: var(--spacing-3xl) 0 var(--spacing-lg);
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-2xl);
            margin-bottom: var(--spacing-2xl);
        }
        .footer-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 8px;
        }
        .footer-desc {
            color: #94a3b8;
            font-size: 0.85rem;
            line-height: 1.7;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 12px;
            font-weight: 600;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: var(--spacing-lg);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: #64748b;
        }
        .footer-bottom a {
            color: #94a3b8;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom .sep {
            margin: 0 8px;
            color: #475569;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-lg);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 品牌介绍块 ========== */
        .brand-intro-block {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: var(--spacing-2xl);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            max-width: 900px;
            margin: 0 auto;
        }
        .brand-intro-block h3 {
            font-size: 1.4rem;
            margin-bottom: 12px;
            text-align: center;
        }
        .brand-intro-block p {
            color: var(--text-secondary);
            line-height: 2;
            font-size: 0.95rem;
            text-indent: 2em;
        }

        /* ========== 精选分类标签 ========== */
        .tag-scroll {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .tag-pill {
            padding: 10px 20px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .tag-pill:hover {
            background: var(--primary-bg);
            border-color: var(--primary-light);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow);
        }
        .tag-pill.active-tag {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* ========== 焦点主题卡 ========== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .topic-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
        }
        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .topic-card .topic-img {
            aspect-ratio: 16 / 9;
            background: var(--bg-lighter);
            overflow: hidden;
        }
        .topic-card .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .topic-card:hover .topic-img img {
            transform: scale(1.05);
        }
        .topic-card .topic-body {
            padding: var(--spacing-lg);
        }
        .topic-card .topic-body h3 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .topic-card .topic-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .topic-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-white: #ffffff;
            --bg-light: #f8fafc;
            --bg-lighter: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

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

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

        input {
            font-family: inherit;
            font-size: 1rem;
        }

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

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

        /* ========== 导航 ========== */
        .nav-capsule {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100vw - 32px);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: var(--radius-full);
            padding: 8px 20px;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-slow);
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .nav-capsule.scrolled {
            top: 8px;
            box-shadow: var(--shadow-xl);
            background: rgba(255, 255, 255, 0.96);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }

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

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }

        .nav-links a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

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

        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 6px;
            border-radius: var(--radius);
            flex-shrink: 0;
        }

        @media (max-width: 1024px) {
            .nav-capsule {
                padding: 8px 14px;
                gap: 12px;
            }
            .nav-links a {
                padding: 7px 11px;
                font-size: 0.82rem;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 768px) {
            .nav-capsule {
                top: 8px;
                padding: 8px 16px;
                gap: 0;
                justify-content: space-between;
                border-radius: var(--radius-lg);
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 2px;
                padding-top: 8px;
                order: 3;
                flex-basis: 100%;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                border-radius: var(--radius);
                padding: 10px 14px;
                width: 100%;
                text-align: center;
                font-size: 0.9rem;
            }
            .nav-logo {
                font-size: 1.15rem;
            }
        }

        /* ========== 按钮系统 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            letter-spacing: -0.01em;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
            transform: translateY(-1px);
            color: #fff;
        }

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

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

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.1rem;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.875rem;
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: var(--spacing-3xl) 0;
        }

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

        .section-header .badge {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.02em;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: var(--spacing-sm) 0;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section-header h2 {
                font-size: 1.55rem;
            }
            .section-header p {
                font-size: 1rem;
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-slow);
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }

        .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: var(--spacing-md);
            flex-shrink: 0;
        }

        .card-icon.blue {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .card-icon.amber {
            background: #fffbeb;
            color: var(--accent);
        }

        .card-icon.emerald {
            background: #ecfdf5;
            color: #10b981;
        }

        /* ========== Hero ========== */
        .hero-database {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            padding-top: 100px;
            padding-bottom: 60px;
            background: linear-gradient(180deg, #f8fafc 0%, #eff6ff 40%, #ffffff 100%);
            overflow: hidden;
        }

        .hero-database::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-database::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-db-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-3xl);
            align-items: center;
        }

        .hero-db-text h1 {
            font-size: 2.8rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: var(--spacing-lg);
        }

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

        .hero-db-text h1 .highlight-accent {
            color: var(--accent);
        }

        .hero-db-text .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: var(--spacing-xl);
            max-width: 520px;
        }

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

        .hero-db-stat {
            text-align: center;
            padding: var(--spacing-md) var(--spacing-lg);
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }

        .hero-db-stat .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
        }

        .hero-db-stat .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

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

        .hero-db-visual .visual-card-stack {
            position: relative;
            width: 100%;
            max-width: 420px;
        }

        .hero-db-visual .visual-main-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            position: relative;
            z-index: 3;
            border: 4px solid #fff;
        }

        .hero-db-visual .visual-card-behind {
            position: absolute;
            top: 16px;
            left: 20px;
            right: 20px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            z-index: 2;
            opacity: 0.7;
            border: 3px solid #fff;
            transform: rotate(-2deg);
        }

        .hero-db-visual .visual-card-behind-2 {
            position: absolute;
            top: 32px;
            left: 36px;
            right: 36px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            z-index: 1;
            opacity: 0.4;
            border: 2px solid #fff;
            transform: rotate(2deg);
        }

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

        @media (max-width: 768px) {
            .hero-database {
                min-height: auto;
                padding-top: 120px;
                padding-bottom: 40px;
            }
            .hero-db-content {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .hero-db-text h1 {
                font-size: 2rem;
            }
            .hero-db-text .hero-desc {
                font-size: 1rem;
                max-width: 100%;
            }
            .hero-db-stats {
                gap: var(--spacing-md);
            }
            .hero-db-stat {
                padding: var(--spacing-sm) var(--spacing-md);
            }
            .hero-db-stat .stat-num {
                font-size: 1.5rem;
            }
            .hero-db-visual .visual-card-stack {
                max-width: 300px;
                margin: 0 auto;
            }
        }

        /* ========== 卖点三连 ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-xl);
        }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-slow);
            text-align: center;
        }

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

        .feature-card .feat-icon {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin: 0 auto var(--spacing-md);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }

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

        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
        }

        /* ========== 场景演示区 ========== */
        .scene-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-3xl);
            align-items: center;
            background: var(--bg-light);
            border-radius: var(--radius-xl);
            padding: var(--spacing-2xl);
            border: 1px solid var(--border);
        }

        .scene-block .scene-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .scene-block .scene-text h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: var(--spacing-md);
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }

        .scene-block .scene-text p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: var(--spacing-md);
        }

        .scene-block .scene-list {
            list-style: none;
            padding: 0;
            margin: 0 0 var(--spacing-lg);
        }

        .scene-block .scene-list li {
            padding: 6px 0;
            padding-left: 24px;
            position: relative;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .scene-block .scene-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
        }

        @media (max-width: 768px) {
            .scene-block {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
                padding: var(--spacing-lg);
            }
            .scene-block .scene-text h3 {
                font-size: 1.35rem;
            }
        }

        /* ========== 社会认同 ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-xl);
        }

        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all var(--transition-slow);
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
        }

        .testimonial-card .test-avatar {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-full);
            background: var(--primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin: 0 auto var(--spacing-md);
            font-weight: 700;
        }

        .testimonial-card .test-stars {
            color: var(--accent);
            font-size: 1rem;
            margin-bottom: var(--spacing-sm);
        }

        .testimonial-card .test-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
        }

        .testimonial-card .test-name {
            font-weight: 700;
            color: var(--text-primary);
            font-size: 0.9rem;
        }

        .testimonial-card .test-role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
        }

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

        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: var(--spacing-lg) 0;
            cursor: pointer;
            transition: all var(--transition);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            gap: var(--spacing-md);
            user-select: none;
        }

        .faq-question i {
            transition: transform var(--transition);
            color: var(--primary);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

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

        /* ========== 底部固定CTA条 ========== */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border);
            padding: 14px 0;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }

        .sticky-cta-bar .sticky-text {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
            text-align: center;
        }

        .sticky-cta-bar .sticky-highlight {
            color: var(--primary);
            font-weight: 800;
        }

        @media (max-width: 520px) {
            .sticky-cta-bar {
                flex-direction: column;
                gap: var(--spacing-sm);
                padding: 10px var(--spacing-md);
            }
            .sticky-cta-bar .sticky-text {
                font-size: 0.85rem;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
            margin-bottom: 80px;
            margin-top: var(--spacing-2xl);
        }

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

        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
        }

        .site-footer .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #94a3b8;
        }

        .site-footer h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.01em;
        }

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

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

        .site-footer ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .site-footer ul li a:hover {
            color: #fff;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: var(--spacing-lg);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            font-size: 0.85rem;
            color: #64748b;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
        }

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

        .site-footer .sep {
            margin: 0 8px;
            color: #334155;
        }

        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-xl);
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: var(--spacing-sm);
            }
        }

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

        /* ========== 数据统计条 ========== */
        .stats-strip {
            background: var(--primary-dark);
            padding: var(--spacing-xl) 0;
            color: #fff;
        }

        .stats-strip-inner {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: var(--spacing-xl);
            text-align: center;
        }

        .stats-strip-item .ss-num {
            font-size: 2.2rem;
            font-weight: 900;
            letter-spacing: -0.02em;
        }

        .stats-strip-item .ss-label {
            font-size: 0.9rem;
            opacity: 0.8;
            margin-top: 4px;
        }

        @media (max-width: 520px) {
            .stats-strip-inner {
                gap: var(--spacing-md);
            }
            .stats-strip-item .ss-num {
                font-size: 1.6rem;
            }
        }

        /* 搜索框 */
        .search-box-wrap {
            display: flex;
            gap: 0;
            max-width: 540px;
            margin: 0 auto;
            box-shadow: var(--shadow-lg);
            border-radius: var(--radius-full);
            overflow: hidden;
        }
        .search-box-wrap input {
            flex: 1;
            padding: 14px 20px;
            border: 2px solid var(--border);
            border-right: none;
            border-radius: var(--radius-full) 0 0 var(--radius-full);
            font-size: 1rem;
            outline: none;
            transition: border-color var(--transition);
        }
        .search-box-wrap input:focus {
            border-color: var(--primary);
        }
        .search-box-wrap button {
            padding: 14px 24px;
            background: var(--primary);
            color: #fff;
            border-radius: 0 var(--radius-full) var(--radius-full) 0;
            font-weight: 600;
            transition: background var(--transition);
            white-space: nowrap;
        }
        .search-box-wrap button:hover {
            background: var(--primary-dark);
        }

/* roulang page: category1 */
:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-white: #ffffff;
            --bg-light: #f8fafc;
            --bg-lighter: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: 100px;
        }

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

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

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

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

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

        input {
            font-family: inherit;
            font-size: 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 var(--spacing-md);
            }
            body {
                padding-top: 88px;
            }
        }

        /* ========== 导航 ========== */
        .nav-capsule {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100vw - 32px);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: var(--radius-full);
            padding: 8px 20px;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-slow);
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .nav-capsule.scrolled {
            top: 8px;
            box-shadow: var(--shadow-xl);
            background: rgba(255, 255, 255, 0.96);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }

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

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }

        .nav-links a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

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

        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 6px;
            border-radius: var(--radius);
            flex-shrink: 0;
        }

        @media (max-width: 1024px) {
            .nav-capsule {
                padding: 8px 14px;
                gap: 12px;
            }
            .nav-links a {
                padding: 7px 11px;
                font-size: 0.82rem;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 768px) {
            .nav-capsule {
                top: 10px;
                padding: 8px 16px;
                border-radius: var(--radius-lg);
                flex-wrap: wrap;
                justify-content: space-between;
                gap: 8px;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 2px;
                background: rgba(255, 255, 255, 0.98);
                border-radius: var(--radius-lg);
                padding: 8px;
                box-shadow: var(--shadow-md);
                margin-top: 4px;
                max-height: 60vh;
                overflow-y: auto;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                text-align: center;
                padding: 10px 14px;
                border-radius: var(--radius);
                font-size: 0.9rem;
            }
            .nav-toggle {
                display: block;
            }
            .nav-capsule {
                border-radius: var(--radius-lg);
            }
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: var(--spacing-3xl) 0;
        }
        .section-sm {
            padding: var(--spacing-2xl) 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: var(--spacing-xl);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 6px 14px;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-sm);
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-sm {
                padding: var(--spacing-xl) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 1rem;
            }
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .btn-lg {
            padding: 15px 32px;
            font-size: 1.1rem;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
        }
        @media (max-width: 768px) {
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 12px 26px;
                font-size: 1rem;
            }
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: var(--spacing-xl);
            transition: all var(--transition-slow);
            box-shadow: var(--shadow-sm);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .card-accent {
            border-left: 4px solid var(--accent);
        }

        /* ========== Hero ========== */
        .hero-news {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-3xl);
            align-items: center;
            min-height: 500px;
        }
        .hero-news-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
        }
        .hero-news-content h1 span {
            color: var(--primary);
        }
        .hero-news-content .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-xl);
            line-height: 1.8;
        }
        .hero-news-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            aspect-ratio: 3/4;
            max-height: 520px;
            box-shadow: var(--shadow-xl);
            background: var(--bg-lighter);
        }
        .hero-news-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-news-visual .hero-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.75), transparent);
            padding: var(--spacing-xl) var(--spacing-lg);
            color: #fff;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: var(--spacing-md);
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            color: #fff;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 500;
        }
        .hero-stats {
            display: flex;
            gap: var(--spacing-xl);
            margin-top: var(--spacing-lg);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .hero-news {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
                min-height: auto;
            }
            .hero-news-content h1 {
                font-size: 1.9rem;
            }
            .hero-news-visual {
                aspect-ratio: 16/10;
                max-height: 320px;
                order: -1;
            }
            .hero-stats {
                gap: var(--spacing-md);
            }
            .hero-stat-num {
                font-size: 1.5rem;
            }
        }

        /* ========== 卖点三连 ========== */
        .selling-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-xl);
        }
        .selling-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-2xl) var(--spacing-xl);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition-slow);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .selling-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .selling-card .icon-circle {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-md);
            font-size: 1.5rem;
            background: var(--primary-bg);
            color: var(--primary);
        }
        .selling-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }
        .selling-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .selling-card .card-tag {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            letter-spacing: 0.04em;
        }
        @media (max-width: 768px) {
            .selling-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
        }

        /* ========== 场景演示 ========== */
        .scenario-block {
            background: var(--bg-light);
            border-radius: var(--radius-xl);
            padding: var(--spacing-3xl);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-2xl);
            align-items: center;
        }
        .scenario-block img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
        }
        .scenario-list {
            list-style: none;
            padding: 0;
        }
        .scenario-list li {
            display: flex;
            align-items: flex-start;
            gap: var(--spacing-sm);
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .scenario-list li:last-child {
            border-bottom: none;
        }
        .scenario-list li i {
            color: var(--primary);
            margin-top: 3px;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .scenario-block {
                grid-template-columns: 1fr;
                padding: var(--spacing-xl);
                gap: var(--spacing-lg);
            }
        }

        /* ========== 社会认同 ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            position: relative;
        }
        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: var(--primary-bg);
            position: absolute;
            top: 16px;
            right: 20px;
        }
        .testimonial-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .testimonial-author .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
        }
        .testimonial-author .name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
        }
        .testimonial-author .role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        @media (max-width: 768px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: var(--spacing-lg) 0;
            cursor: pointer;
            transition: all var(--transition);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-q {
            font-weight: 600;
            font-size: 1.1rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: var(--spacing-md);
        }
        .faq-q i {
            transition: transform var(--transition);
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding-top: var(--spacing-sm);
        }

        /* ========== 底部固定转化条 ========== */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border);
            padding: 12px var(--spacing-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-lg);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
            transform: translateY(100%);
            transition: transform var(--transition-slow);
        }
        .sticky-cta-bar.visible {
            transform: translateY(0);
        }
        .sticky-cta-bar .bar-text {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
        }
        .sticky-cta-bar .bar-text span {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .sticky-cta-bar {
                flex-direction: column;
                gap: var(--spacing-sm);
                padding: 10px var(--spacing-md);
            }
            .sticky-cta-bar .bar-text {
                font-size: 0.85rem;
                text-align: center;
            }
        }

        /* ========== 深度内容区 ========== */
        .deep-content {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border);
            padding: var(--spacing-3xl);
            box-shadow: var(--shadow-md);
        }
        .deep-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: var(--spacing-md);
            color: var(--text-primary);
        }
        .deep-content p {
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: var(--spacing-md);
            font-size: 1rem;
        }
        .deep-content .highlight-box {
            background: var(--primary-bg);
            border-radius: var(--radius);
            padding: var(--spacing-lg);
            border-left: 4px solid var(--primary);
            margin: var(--spacing-lg) 0;
        }
        @media (max-width: 768px) {
            .deep-content {
                padding: var(--spacing-xl);
            }
            .deep-content h2 {
                font-size: 1.3rem;
            }
        }

        /* ========== 数据条 ========== */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
            text-align: center;
        }
        .data-item {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .data-item .num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }
        .data-item .num-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }
            .data-item .num {
                font-size: 1.8rem;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
            margin-top: var(--spacing-3xl);
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-2xl);
            padding-bottom: var(--spacing-2xl);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .site-footer .footer-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: #94a3b8;
            line-height: 1.7;
        }
        .site-footer .footer-col h4 {
            font-weight: 600;
            color: #fff;
            margin-bottom: var(--spacing-md);
            font-size: 0.95rem;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            padding-top: var(--spacing-lg);
            font-size: 0.85rem;
            color: #64748b;
        }
        .site-footer .footer-bottom a {
            color: #94a3b8;
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        .site-footer .sep {
            margin: 0 8px;
            color: #475569;
        }
        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-lg);
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 脉冲动画 */
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }
        .pulse-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #10b981;
            animation: pulse-dot 2s ease-in-out infinite;
            margin-right: 6px;
            vertical-align: middle;
        }

        /* 新闻标签样式 */
        .news-tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .news-tag-hot {
            background: #fef2f2;
            color: #dc2626;
        }
        .news-tag-new {
            background: #ecfdf5;
            color: #059669;
        }
        .news-tag-trend {
            background: #eff6ff;
            color: #2563eb;
        }

/* roulang page: category2 */
:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --accent-bg: #fffbeb;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-white: #ffffff;
            --bg-light: #f8fafc;
            --bg-lighter: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: 90px;
        }

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

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

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

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

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

        input {
            font-family: inherit;
            font-size: 1rem;
        }

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

        /* ========== 导航 ========== */
        .nav-capsule {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100vw - 32px);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: var(--radius-full);
            padding: 8px 20px;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-slow);
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .nav-capsule.scrolled {
            top: 8px;
            box-shadow: var(--shadow-xl);
            background: rgba(255, 255, 255, 0.96);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }

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

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }

        .nav-links a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

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

        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 6px;
            border-radius: var(--radius);
            flex-shrink: 0;
        }

        /* ========== 板块通用 ========== */
        .section-padding {
            padding: var(--spacing-3xl) 0;
        }

        .section-padding-lg {
            padding: var(--spacing-3xl) 0 var(--spacing-2xl);
        }

        .section-subtitle {
            display: inline-block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-bg);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            letter-spacing: 0.03em;
            margin-bottom: var(--spacing-md);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
        }

        /* ========== 按钮 ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
            transform: translateY(-1px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-full);
            border: 2px solid var(--primary);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: var(--primary-bg);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
            white-space: nowrap;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
            transform: translateY(-1px);
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition-slow);
            overflow: hidden;
        }

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

        .card-elevated {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            overflow: hidden;
        }

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

        /* ========== 标签 ========== */
        .tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
        }

        .tag-primary {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .tag-accent {
            background: var(--accent-bg);
            color: var(--accent-dark);
        }

        .tag-success {
            background: #ecfdf5;
            color: #059669;
        }

        /* ========== Hero 矮横幅 ========== */
        .hero-banner {
            position: relative;
            background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 30%, #f8fafc 60%, #eff6ff 100%);
            padding: var(--spacing-2xl) 0;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-banner-content {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: var(--spacing-2xl);
            flex-wrap: wrap;
        }

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

        .hero-banner-text h1 {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.03em;
            line-height: 1.25;
            margin-bottom: var(--spacing-md);
        }

        .hero-banner-text p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: var(--spacing-lg);
            max-width: 560px;
        }

        .hero-banner-visual {
            flex: 0 0 280px;
            min-width: 200px;
            position: relative;
        }

        .hero-banner-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            object-fit: cover;
        }

        /* ========== 步骤流程 ========== */
        .step-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xl);
            position: relative;
        }

        .step-list::before {
            content: '';
            position: absolute;
            left: 28px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border);
            z-index: 0;
        }

        .step-item {
            display: flex;
            gap: var(--spacing-lg);
            position: relative;
            z-index: 1;
            align-items: flex-start;
        }

        .step-number {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.3);
        }

        .step-body {
            flex: 1;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .step-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-xs);
        }

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

        /* ========== 数据面板 ========== */
        .stat-card {
            text-align: center;
            padding: var(--spacing-xl);
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }

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

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.03em;
            line-height: 1;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: var(--spacing-xs);
        }

        /* ========== FAQ ========== */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            margin-bottom: var(--spacing-md);
            overflow: hidden;
            transition: all var(--transition);
            background: var(--bg-white);
        }

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

        .faq-question {
            width: 100%;
            padding: var(--spacing-lg);
            background: none;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: var(--spacing-md);
            transition: color var(--transition);
        }

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

        .faq-question i {
            transition: transform var(--transition);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .faq-item.open .faq-question i {
            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 var(--spacing-lg);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 var(--spacing-lg) var(--spacing-lg);
        }

        .faq-answer p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            margin: 0;
        }

        /* ========== CTA 底部条 ========== */
        .cta-sticky-bar {
            position: sticky;
            bottom: 0;
            z-index: 900;
            background: var(--primary-dark);
            padding: var(--spacing-md) 0;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
        }

        .cta-sticky-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }

        .cta-sticky-bar p {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin: 0;
            flex: 1;
            min-width: 200px;
        }

        .cta-sticky-bar .btn-accent {
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.5);
            flex-shrink: 0;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
            font-size: 0.9rem;
            line-height: 1.8;
        }

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

        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
        }

        .site-footer .footer-desc {
            color: #94a3b8;
            font-size: 0.875rem;
            line-height: 1.7;
            max-width: 400px;
        }

        .site-footer .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.01em;
        }

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

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

        .site-footer .footer-col ul li a {
            color: #94a3b8;
            transition: color var(--transition);
            font-size: 0.875rem;
        }

        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-lg);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            font-size: 0.8rem;
            color: #64748b;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
        }

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

        .site-footer .sep {
            margin: 0 8px;
            color: #475569;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero-banner-content {
                flex-direction: column;
                text-align: center;
            }
            .hero-banner-text {
                text-align: center;
            }
            .hero-banner-text p {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-banner-visual {
                flex: 0 0 auto;
                max-width: 320px;
                margin: 0 auto;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-xl);
            }
            .section-title {
                font-size: 1.7rem;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 75px;
            }
            .nav-capsule {
                padding: 8px 14px;
                gap: 10px;
                top: 10px;
                max-width: calc(100vw - 20px);
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-radius: var(--radius-lg);
                flex-direction: column;
                padding: var(--spacing-md);
                box-shadow: var(--shadow-xl);
                border: 1px solid var(--border);
                gap: 4px;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                text-align: center;
                padding: 10px 16px;
                border-radius: var(--radius);
                font-size: 0.9rem;
            }
            .nav-toggle {
                display: block;
            }
            .hero-banner {
                padding: var(--spacing-xl) 0;
            }
            .hero-banner-text h1 {
                font-size: 1.7rem;
            }
            .hero-banner-text p {
                font-size: 0.95rem;
            }
            .section-padding {
                padding: var(--spacing-2xl) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 var(--spacing-md);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: var(--spacing-sm);
            }
            .cta-sticky-bar .container {
                flex-direction: column;
                text-align: center;
            }
            .step-list::before {
                left: 22px;
            }
            .step-number {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
            .step-body {
                padding: var(--spacing-md);
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 520px) {
            .nav-capsule {
                padding: 6px 10px;
                gap: 6px;
                top: 6px;
                max-width: calc(100vw - 12px);
            }
            .nav-logo {
                font-size: 0.95rem;
            }
            .hero-banner-text h1 {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .btn-primary,
            .btn-accent,
            .btn-outline {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            .hero-banner-visual {
                max-width: 240px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .step-number {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
            .step-list::before {
                left: 18px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-white: #ffffff;
            --bg-light: #f8fafc;
            --bg-lighter: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            padding-bottom: 80px;
        }

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

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

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

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

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

        input {
            font-family: inherit;
            font-size: 1rem;
        }

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

        /* ========== 导航 ========== */
        .nav-capsule {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100vw - 32px);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: var(--radius-full);
            padding: 8px 20px;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-slow);
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .nav-capsule.scrolled {
            top: 8px;
            box-shadow: var(--shadow-xl);
            background: rgba(255, 255, 255, 0.96);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }

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

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }

        .nav-links a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

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

        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 6px;
            border-radius: var(--radius);
            flex-shrink: 0;
        }

        /* ========== 按钮 ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            padding: 11px 26px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--primary);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: var(--primary-bg);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

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

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
            white-space: nowrap;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-slow);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

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

        .card-padded {
            padding: var(--spacing-xl);
        }

        /* ========== 标签 ========== */
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-primary {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .badge-accent {
            background: #fef3c7;
            color: #b45309;
        }

        .badge-green {
            background: #dcfce7;
            color: #15803d;
        }

        .badge-red {
            background: #fee2e2;
            color: #b91c1c;
        }

        /* ========== 底部固定转化条 ========== */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
            padding: 14px 0;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .sticky-cta-bar .cta-text {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .sticky-cta-bar .cta-highlight {
            color: var(--accent-dark);
            font-weight: 700;
        }

        /* ========== Hero Bento ========== */
        .hero-bento {
            display: grid;
            grid-template-columns: 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
            padding-top: 120px;
            padding-bottom: 60px;
        }

        .hero-bento-main {
            grid-column: 1 / 2;
            grid-row: 1 / 3;
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: var(--spacing-3xl);
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
            background-image: linear-gradient(135deg, rgba(239, 246, 255, 0.6) 0%, rgba(255, 255, 255, 0.95) 60%),
                url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
        }

        .hero-bento-sub {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .hero-bento-sub:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .hero-bento-sub .bento-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }

        .bento-icon-blue {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .bento-icon-amber {
            background: #fef3c7;
            color: #b45309;
        }

        .hero-bento-cta-strip {
            grid-column: 1 / 3;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-lg);
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }

        /* ========== 赛事数据条 ========== */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            padding: 40px 0;
        }

        .stat-card {
            text-align: center;
            padding: 24px 16px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

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

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.03em;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ========== 流程步骤 ========== */
        .steps-flow {
            display: flex;
            gap: 0;
            align-items: flex-start;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
        }

        .step-item {
            flex: 1;
            min-width: 200px;
            text-align: center;
            padding: 24px 16px;
            position: relative;
        }

        .step-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 6px 18px rgba(26, 86, 219, 0.3);
            position: relative;
            z-index: 2;
        }

        .step-connector {
            position: absolute;
            top: 52px;
            left: 60%;
            width: 80%;
            height: 3px;
            background: var(--border);
            z-index: 1;
        }

        .step-item:last-child .step-connector {
            display: none;
        }

        .step-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .step-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

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

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

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--text-primary);
            user-select: none;
            background: var(--bg-white);
            transition: background var(--transition);
        }

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

        .faq-question i {
            transition: transform var(--transition);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        .faq-answer p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #1e293b;
            color: #cbd5e1;
            padding: 48px 0 24px;
            margin-top: 60px;
            font-size: 0.9rem;
        }

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

        .site-footer .footer-brand {
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: 8px;
        }

        .site-footer .footer-desc {
            color: #94a3b8;
            line-height: 1.6;
            font-size: 0.85rem;
        }

        .site-footer .footer-col h4 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 12px;
            font-size: 0.95rem;
        }

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

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

        .site-footer .footer-col ul li a {
            color: #94a3b8;
            transition: color var(--transition);
            font-size: 0.85rem;
        }

        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: #64748b;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
        }

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

        .site-footer .sep {
            margin: 0 8px;
            color: #475569;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero-bento {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
                padding-top: 100px;
            }
            .hero-bento-main {
                grid-column: 1;
                grid-row: 1;
                padding: 32px 24px;
            }
            .hero-bento-sub {
                grid-column: 1;
                grid-row: auto;
            }
            .hero-bento-cta-strip {
                grid-column: 1;
                flex-direction: column;
                text-align: center;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-capsule {
                padding: 8px 14px;
                gap: 12px;
            }
            .nav-links a {
                padding: 7px 11px;
                font-size: 0.82rem;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                border-radius: var(--radius-lg);
                padding: 12px;
                box-shadow: var(--shadow-xl);
                margin-top: 8px;
                border: 1px solid var(--border);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .nav-capsule {
                flex-wrap: wrap;
                justify-content: space-between;
            }
            .hero-bento {
                padding-top: 90px;
            }
            .hero-bento-main {
                padding: 24px 18px;
            }
            .hero-bento-cta-strip {
                padding: 16px 20px;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .steps-flow {
                flex-direction: column;
                align-items: center;
            }
            .step-connector {
                display: none;
            }
            .step-item {
                min-width: 100%;
                max-width: 320px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .sticky-cta-bar {
                flex-direction: column;
                padding: 12px 16px;
                gap: 10px;
                text-align: center;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-bento-main {
                padding: 20px 14px;
            }
            .hero-bento-main h1 {
                font-size: 1.5rem;
            }
            .stats-strip {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 16px 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .btn-primary,
            .btn-accent,
            .btn-outline {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .card-padded {
                padding: 16px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-white: #ffffff;
            --bg-light: #f8fafc;
            --bg-lighter: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: 80px;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }
        input {
            font-family: inherit;
            font-size: 1rem;
        }

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

        /* ========== 导航 ========== */
        .nav-capsule {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100vw - 32px);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: var(--radius-full);
            padding: 8px 20px;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-slow);
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .nav-capsule.scrolled {
            top: 8px;
            box-shadow: var(--shadow-xl);
            background: rgba(255, 255, 255, 0.96);
        }
        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }
        .nav-logo span {
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }
        .nav-links a.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 6px;
            border-radius: var(--radius);
            flex-shrink: 0;
        }

        /* ========== 按钮系统 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            white-space: nowrap;
            cursor: pointer;
            border: none;
            font-family: inherit;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.45);
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .btn-lg {
            padding: 15px 36px;
            font-size: 1.1rem;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition-slow);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .card-body {
            padding: var(--spacing-xl);
        }

        /* ========== 标签 ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            white-space: nowrap;
        }
        .badge-green {
            background: #ecfdf5;
            color: #059669;
        }
        .badge-red {
            background: #fef2f2;
            color: #dc2626;
        }
        .badge-blue {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .badge-amber {
            background: #fffbeb;
            color: #d97706;
        }

        /* ========== Hero深色面板 ========== */
        .hero-dark {
            position: relative;
            background: #0f172a;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            min-height: 580px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-dark::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 58, 138, 0.85) 50%, rgba(15, 23, 42, 0.9) 100%);
            z-index: 1;
        }
        .hero-dark .hero-content {
            position: relative;
            z-index: 2;
        }

        /* ========== Faux数据榜单 ========== */
        .faux-ticker {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            color: #e2e8f0;
        }
        .faux-ticker .ticker-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.9rem;
        }
        .faux-ticker .ticker-row:last-child {
            border-bottom: none;
        }
        .ticker-up {
            color: #34d399;
        }
        .ticker-down {
            color: #f87171;
        }

        /* ========== 板块间距 ========== */
        .section {
            padding: var(--spacing-3xl) 0;
        }
        .section-sm {
            padding: var(--spacing-2xl) 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: var(--spacing-2xl);
            max-width: 640px;
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            color: var(--text-primary);
            font-size: 1.05rem;
        }
        .faq-question i {
            transition: transform var(--transition);
            color: var(--text-muted);
        }
        .faq-item.open .faq-question i {
            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 24px;
            color: var(--text-secondary);
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ========== 底部固定转化条 ========== */
        .sticky-cta-bar {
            position: fixed;
            bottom: -100px;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            box-shadow: 0 -8px 30px rgba(0, 0, 0, 0.12);
            padding: 14px 0;
            transition: bottom var(--transition-slow);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .sticky-cta-bar.visible {
            bottom: 0;
        }
        .sticky-cta-bar .cta-text {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 1rem;
        }
        .sticky-cta-bar .cta-highlight {
            color: var(--accent);
            font-weight: 700;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--spacing-2xl);
        }
        .site-footer .footer-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: var(--spacing-sm);
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #94a3b8;
        }
        .site-footer h4 {
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-md);
            font-size: 1rem;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            margin-top: var(--spacing-2xl);
            padding-top: var(--spacing-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: #64748b;
        }
        .site-footer .footer-bottom a {
            color: #94a3b8;
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        .site-footer .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.2);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-xl);
            }
            .hero-dark {
                min-height: 480px;
            }
            .nav-links a {
                padding: 7px 11px;
                font-size: 0.82rem;
            }
            .nav-capsule {
                padding: 8px 14px;
                gap: 12px;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 70px;
            }
            .nav-capsule {
                top: 8px;
                max-width: calc(100vw - 16px);
                padding: 8px 12px;
                gap: 8px;
                border-radius: var(--radius-xl);
            }
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-radius: var(--radius-lg);
                flex-direction: column;
                gap: 2px;
                padding: 8px;
                box-shadow: var(--shadow-xl);
                border: 1px solid var(--border);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 10px 16px;
                border-radius: var(--radius);
                font-size: 0.9rem;
                width: 100%;
                text-align: center;
            }
            .nav-toggle {
                display: block;
            }
            .hero-dark {
                min-height: 420px;
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .sticky-cta-bar {
                flex-direction: column;
                gap: 10px;
                padding: 12px 16px;
                text-align: center;
            }
            .container {
                padding: 0 var(--spacing-md);
            }
        }

        @media (max-width: 520px) {
            .hero-dark {
                min-height: 380px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 1rem;
            }
            .faux-ticker {
                padding: 14px 16px;
            }
            .faux-ticker .ticker-row {
                font-size: 0.78rem;
                padding: 7px 0;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-white: #ffffff;
            --bg-light: #f8fafc;
            --bg-lighter: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: 90px;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }
        input {
            font-family: inherit;
            font-size: 1rem;
        }

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

        /* ========== 导航 ========== */
        .nav-capsule {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100vw - 32px);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: var(--radius-full);
            padding: 8px 20px;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-slow);
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .nav-capsule.scrolled {
            top: 8px;
            box-shadow: var(--shadow-xl);
            background: rgba(255, 255, 255, 0.96);
        }
        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }
        .nav-logo span {
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }
        .nav-links a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }
        .nav-links a.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 6px;
            border-radius: var(--radius);
            flex-shrink: 0;
        }

        /* ========== 按钮系统 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.45);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--accent);
            color: #1e293b;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
            font-weight: 700;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
            transform: translateY(-1px);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.1rem;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.875rem;
        }

        /* ========== 卡片系统 ========== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition-slow);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .card-elevated {
            box-shadow: var(--shadow-md);
            border: 1px solid transparent;
        }
        .card-elevated:hover {
            box-shadow: var(--shadow-xl);
            border-color: var(--border);
        }

        /* ========== 标签 ========== */
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.01em;
        }
        .badge-primary {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .badge-accent {
            background: #fef3c7;
            color: #92400e;
        }
        .badge-rare {
            background: linear-gradient(135deg, #fef3c7, #fde68a);
            color: #92400e;
            border: 1px solid #fbbf24;
        }
        .badge-legendary {
            background: linear-gradient(135deg, #ede9fe, #c4b5fd);
            color: #5b21b6;
            border: 1px solid #8b5cf6;
        }

        /* ========== 板块 ========== */
        .section {
            padding: var(--spacing-3xl) 0;
        }
        .section-sm {
            padding: var(--spacing-2xl) 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            margin-bottom: var(--spacing-sm);
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.8;
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-2xl);
        }
        .section-header .section-title {
            margin-bottom: var(--spacing-sm);
        }
        .section-header .section-subtitle {
            margin: 0 auto;
        }

        /* ========== Hero Bento ========== */
        .hero-bento {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
            align-items: stretch;
        }
        .hero-bento-main {
            grid-row: 1 / 3;
            background: linear-gradient(160deg, #eff6ff 0%, #f8fafc 40%, #ffffff 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .hero-bento-main::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-bento-mini {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all var(--transition-slow);
        }
        .hero-bento-mini:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .hero-bento-cta {
            grid-column: 2;
            background: var(--primary-dark);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            color: #fff;
            box-shadow: var(--shadow-md);
        }
        .hero-icon-circle {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.4rem;
        }
        .hero-icon-blue {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .hero-icon-amber {
            background: #fef3c7;
            color: #d97706;
        }

        /* ========== 稀有度指示条 ========== */
        .rarity-bar {
            display: flex;
            gap: 4px;
            align-items: center;
        }
        .rarity-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            display: inline-block;
        }
        .rarity-dot-gold {
            background: linear-gradient(135deg, #f59e0b, #fbbf24);
            box-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
        }
        .rarity-dot-purple {
            background: linear-gradient(135deg, #8b5cf6, #a78bfa);
            box-shadow: 0 0 8px rgba(139, 92, 246, 0.5);
        }
        .rarity-dot-blue {
            background: linear-gradient(135deg, #3b82f6, #60a5fa);
            box-shadow: 0 0 8px rgba(59, 130, 246, 0.4);
        }
        .rarity-dot-silver {
            background: linear-gradient(135deg, #94a3b8, #cbd5e1);
            box-shadow: 0 0 6px rgba(148, 163, 184, 0.4);
        }

        /* ========== 统计数字 ========== */
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.03em;
            line-height: 1.1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== 底部固定转化条 ========== */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border);
            padding: 14px 0;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            transform: translateY(100%);
            transition: transform var(--transition-slow);
        }
        .sticky-cta-bar.visible {
            transform: translateY(0);
        }
        .sticky-cta-bar .cta-text {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
        }

        /* ========== FAQ ========== */
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
            cursor: pointer;
            transition: all var(--transition);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .faq-question i {
            transition: transform var(--transition);
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition);
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 24px;
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .site-footer .footer-brand {
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 12px;
        }
        .site-footer .footer-desc {
            color: #94a3b8;
            font-size: 0.875rem;
            line-height: 1.8;
            max-width: 400px;
        }
        .site-footer .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 12px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 6px;
        }
        .site-footer .footer-col ul li a {
            color: #94a3b8;
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: #64748b;
        }
        .site-footer .footer-bottom a {
            color: #94a3b8;
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        .site-footer .sep {
            margin: 0 8px;
            color: #475569;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero-bento {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .hero-bento-main {
                grid-row: auto;
                padding: 36px 28px;
            }
            .hero-bento-cta {
                grid-column: auto;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 80px;
            }
            .nav-capsule {
                padding: 8px 14px;
                gap: 12px;
                top: 10px;
                max-width: calc(100vw - 20px);
            }
            .nav-logo {
                font-size: 1.1rem;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 12px);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-radius: var(--radius-lg);
                flex-direction: column;
                padding: 16px;
                gap: 4px;
                box-shadow: var(--shadow-xl);
                border: 1px solid var(--border);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                width: 100%;
                text-align: center;
                border-radius: var(--radius);
                font-size: 0.95rem;
            }
            .nav-toggle {
                display: block;
            }
            .hero-bento-main {
                padding: 28px 20px;
            }
            .hero-bento-mini {
                padding: 20px 16px;
            }
            .hero-bento-cta {
                flex-direction: column;
                text-align: center;
                padding: 20px 16px;
            }
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .sticky-cta-bar {
                padding: 10px 16px;
                gap: 12px;
                flex-wrap: wrap;
                text-align: center;
                justify-content: center;
            }
            .sticky-cta-bar .cta-text {
                font-size: 0.85rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .container {
                padding: 0 var(--spacing-md);
            }
        }
        @media (max-width: 520px) {
            .hero-bento-main {
                padding: 22px 16px;
                border-radius: var(--radius-lg);
            }
            .hero-bento-mini {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .hero-bento-cta {
                border-radius: var(--radius);
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 14px 26px;
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-white: #ffffff;
            --bg-light: #f8fafc;
            --bg-lighter: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1), 0 4px 10px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-white);
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: 80px;
        }

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

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

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

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

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

        input {
            font-family: inherit;
            font-size: 1rem;
        }

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

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

        /* ========== 导航 ========== */
        .nav-capsule {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100vw - 32px);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(226, 232, 240, 0.7);
            border-radius: var(--radius-full);
            padding: 8px 20px;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-slow);
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .nav-capsule.scrolled {
            top: 8px;
            box-shadow: var(--shadow-xl);
            background: rgba(255, 255, 255, 0.96);
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--primary-dark);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }

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

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition);
            position: relative;
        }

        .nav-links a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

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

        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 6px;
            border-radius: var(--radius);
            flex-shrink: 0;
        }

        @media (max-width: 1024px) {
            .nav-capsule {
                padding: 8px 14px;
                gap: 12px;
            }
            .nav-links a {
                padding: 7px 11px;
                font-size: 0.82rem;
            }
            .nav-logo {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-radius: var(--radius-lg);
                padding: 12px;
                flex-direction: column;
                gap: 4px;
                box-shadow: var(--shadow-xl);
                border: 1px solid var(--border);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                text-align: center;
                padding: 10px 16px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-capsule {
                justify-content: space-between;
            }
        }

        /* ========== 按钮 ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
            transform: translateY(-1px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--primary);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: var(--primary-bg);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
            white-space: nowrap;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
            transform: translateY(-1px);
        }

        .btn-lg {
            padding: 15px 36px;
            font-size: 1.1rem;
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            overflow: hidden;
        }

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

        .card-highlight {
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-lg);
            position: relative;
            transform: scale(1.03);
            z-index: 2;
        }

        .card-highlight::before {
            content: '推荐';
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            z-index: 5;
            letter-spacing: 0.04em;
        }

        /* ========== 板块间距 ========== */
        .section {
            padding: var(--spacing-3xl) 0;
        }

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

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

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

        /* ========== 标签 ========== */
        .badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .badge-primary {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .badge-accent {
            background: #fef3c7;
            color: var(--accent-dark);
        }

        .badge-success {
            background: #d1fae5;
            color: #065f46;
        }

        /* ========== 步骤 ========== */
        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            background: var(--bg-white);
        }

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

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            color: var(--text-primary);
            transition: color var(--transition);
            user-select: none;
        }

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

        .faq-question i {
            transition: transform var(--transition);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .faq-item.open .faq-question i {
            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 24px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ========== 底部固定转化条 ========== */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border);
            padding: 12px 0;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
            transform: translateY(100%);
            transition: transform var(--transition-slow);
        }

        .sticky-cta-bar.visible {
            transform: translateY(0);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #1e293b;
            color: #cbd5e1;
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
            margin-bottom: 0;
        }

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

        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .site-footer .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #94a3b8;
        }

        .site-footer h4 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 14px;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
        }

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

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

        .site-footer ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .site-footer ul li a:hover {
            color: #fff;
        }

        .site-footer .footer-bottom {
            margin-top: var(--spacing-2xl);
            padding-top: var(--spacing-lg);
            border-top: 1px solid #334155;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: #64748b;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
        }

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

        .site-footer .sep {
            margin: 0 10px;
            color: #475569;
        }

        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-xl);
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

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

        /* ========== 响应式补充 ========== */
        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-2xl) 0;
            }
            .section-sm {
                padding: var(--spacing-xl) 0;
            }
            .card-highlight {
                transform: scale(1);
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 1rem;
            }
        }

        /* ========== Hero区域 ========== */
        .hero-bg {
            background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 40%, #f0f9ff 100%);
            position: relative;
            overflow: hidden;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .animate-fade-in {
            animation: fadeInUp 0.6s ease forwards;
        }

        .animate-delay-1 {
            animation-delay: 0.15s;
        }

        .animate-delay-2 {
            animation-delay: 0.3s;
        }