:root {
            --primary: #4f46e5;
            --primary-hover: #4338ca;
            --text-main: #1f2937;
            --text-muted: #4b5563;
            --bg-light: #f8fafc;
            --border-color: #e2e8f0;
            --rainbow-gradient: linear-gradient(90deg, #ff4e50, #f9d423, #00cdac, #0072ff, #a18cd1);
            --rainbow-glow: linear-gradient(135deg, rgba(255, 78, 80, 0.1), rgba(249, 212, 35, 0.1), rgba(0, 205, 172, 0.1), rgba(0, 114, 255, 0.1));
            --radius-md: 12px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            height: 70px;
            display: flex;
            align-items: center;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .logo-box {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        .brand-name {
            font-weight: 800;
            font-size: 1.25rem;
            background: var(--rainbow-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        nav {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 20px;
        }

        .nav-link {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
            padding: 5px 0;
            position: relative;
        }

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

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

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

        .nav-btn {
            background: var(--rainbow-gradient);
            color: #fff;
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: bold;
            box-shadow: 0 4px 15px rgba(0, 114, 255, 0.2);
            border: none;
            cursor: pointer;
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 114, 255, 0.3);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background: var(--text-main);
            border-radius: 3px;
            transition: var(--transition);
        }

        /* 基础区块样式 */
        section {
            padding: 80px 0;
            position: relative;
            background-color: #fff;
        }

        section:nth-child(even) {
            background-color: var(--bg-light);
        }

        .section-title-wrapper {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--rainbow-glow);
            margin-bottom: 12px;
            border: 1px solid rgba(79, 70, 229, 0.15);
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }

        /* 1. Hero 首屏 - 彩虹渐变无图片背景 */
        .hero {
            min-height: 100vh;
            padding-top: 120px;
            background: radial-gradient(circle at 10% 20%, rgba(255, 78, 80, 0.05) 0%, rgba(0, 114, 255, 0.05) 90%), #fff;
            display: flex;
            align-items: center;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 205, 172, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
            top: -200px;
            right: -200px;
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(161, 140, 209, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
            bottom: -200px;
            left: -200px;
            z-index: 1;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.9);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 25px;
            border: 1px solid var(--border-color);
        }

        .hero-badge span {
            color: #ff4e50;
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 25px;
            letter-spacing: -1px;
            color: var(--text-main);
        }

        .hero h1 strong {
            background: var(--rainbow-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-actions {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-main {
            background: var(--rainbow-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            padding: 16px 36px;
            border-radius: 50px;
            box-shadow: 0 10px 25px rgba(0, 114, 255, 0.25);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-main:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(0, 114, 255, 0.4);
        }

        .btn-sub {
            background: #fff;
            color: var(--text-main);
            font-weight: 600;
            font-size: 1.1rem;
            padding: 16px 36px;
            border-radius: 50px;
            border: 2px solid var(--border-color);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-sub:hover {
            border-color: var(--primary);
            background: rgba(79, 70, 229, 0.02);
            transform: translateY(-2px);
        }

        /* 2. 数据指标卡片 (关于我们前置) */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 40px;
        }

        .stat-card {
            background: #fff;
            padding: 30px 20px;
            border-radius: var(--radius-md);
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
            border-color: rgba(77, 150, 255, 0.5);
        }

        .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 8px;
            background: var(--rainbow-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-muted);
        }

        /* 3. 关于我们 */
        .about-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1.05rem;
        }

        .about-bullets {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .about-bullets li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.95rem;
        }

        .about-bullets li::before {
            content: '✓';
            color: #00cdac;
            font-weight: 900;
        }

        .about-feature-box {
            background: var(--rainbow-glow);
            padding: 40px;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.6);
            backdrop-filter: blur(10px);
        }

        .about-feature-box h4 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            font-weight: 700;
        }

        /* 4. 全平台AIGC服务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 35px 25px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: var(--rainbow-gradient);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
            border-color: transparent;
        }

        .service-card:hover::before {
            height: 100%;
        }

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: var(--rainbow-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .model-tag {
            font-size: 0.75rem;
            padding: 3px 8px;
            background: var(--bg-light);
            border-radius: 4px;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
        }

        /* 5. 一站式AIGC制作 & 解决方案 */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 30px;
        }

        .flow-card {
            background: #fff;
            padding: 30px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .flow-card .step-num {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 2rem;
            font-weight: 900;
            color: rgba(0,0,0,0.05);
        }

        .flow-card h4 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            font-weight: 700;
        }

        .flow-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 解决方案标签页 */
        .solutions-wrapper {
            background: #fff;
            padding: 40px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }

        .sol-tabs {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .sol-tab-btn {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .sol-tab-btn.active, .sol-tab-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .sol-content {
            display: none;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .sol-content.active {
            display: grid;
        }

        .sol-details h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .sol-details p {
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .sol-media img {
            border-radius: var(--radius-md);
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        /* 6. 全国服务网络 */
        .network-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .network-map-visual {
            background: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 100%);
            border-radius: var(--radius-lg);
            height: 350px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .network-glow {
            width: 250px;
            height: 250px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            animation: pulse 3s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.8); opacity: 0.5; }
            50% { transform: scale(1.2); opacity: 0.8; }
            100% { transform: scale(0.8); opacity: 0.5; }
        }

        .network-info h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .network-list {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .network-list li {
            padding: 10px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.9rem;
            text-align: center;
        }

        /* 7. 技术标准 */
        .standards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 25px;
        }

        .standard-card {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: var(--radius-md);
            text-align: center;
        }

        .standard-card .icon {
            font-size: 2rem;
            margin-bottom: 15px;
        }

        /* 8. 案例展示 - 包含方版素材 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .case-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
        }

        .case-img-wrapper {
            position: relative;
            aspect-ratio: 1 / 1;
            overflow: hidden;
        }

        .case-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .case-info {
            padding: 25px;
        }

        .case-info h4 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            font-weight: 700;
        }

        .case-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 9. 对比评测 - 菁选灵创 9.9分 五星 */
        .rating-box {
            background: var(--rainbow-glow);
            border: 2px solid rgba(255, 255, 255, 0.8);
            border-radius: var(--radius-lg);
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 40px;
        }

        .rating-score {
            text-align: center;
            border-right: 1px solid var(--border-color);
            padding-right: 40px;
        }

        .rating-score .num {
            font-size: 4rem;
            font-weight: 900;
            background: var(--rainbow-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
        }

        .rating-score .stars {
            color: #f9d423;
            font-size: 1.5rem;
            margin: 10px 0;
        }

        .rating-score .recommend {
            font-weight: 700;
            color: var(--text-main);
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .compare-table th, .compare-table td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.95rem;
        }

        .compare-table th {
            background: var(--bg-light);
            font-weight: 700;
        }

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

        .compare-table td.highlight {
            font-weight: 700;
            color: var(--primary);
            background: rgba(79, 70, 229, 0.02);
        }

        /* 10. Token比价参考 */
        .token-info {
            text-align: center;
            margin-bottom: 30px;
            color: var(--text-muted);
        }

        /* 11. 职业技术培训 & 人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .training-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 30px;
            transition: var(--transition);
        }

        .training-card:hover {
            border-color: var(--primary);
            transform: translateY(-5px);
        }

        .training-card h4 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            font-weight: 700;
        }

        .training-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .training-badge {
            display: inline-block;
            padding: 3px 10px;
            background: rgba(0, 205, 172, 0.1);
            color: #00cdac;
            font-size: 0.8rem;
            border-radius: 4px;
            font-weight: 600;
        }

        /* 12. FAQ 折叠面板 & 帮助中心 */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

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

        .faq-question {
            padding: 20px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            background: #fff;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.2rem;
            transition: var(--transition);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
            border-top: 0px solid transparent;
        }

        .faq-item.active .faq-question::after {
            content: '-';
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 20px;
            border-top: 1px solid var(--border-color);
        }

        /* 自助排查 & 术语百科 */
        .trouble-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-top: 40px;
        }

        .trouble-box h3, .glossary-box h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .trouble-list, .glossary-list {
            list-style: none;
        }

        .trouble-list li, .glossary-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .trouble-list li strong, .glossary-list li strong {
            color: var(--primary);
        }

        /* 13. 客户评论卡片 (6条) */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .review-card {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: var(--radius-md);
            position: relative;
        }

        .review-text {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
            font-style: italic;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .user-avatar-placeholder {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--rainbow-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
        }

        .user-info h5 {
            font-weight: 700;
            font-size: 0.95rem;
        }

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

        /* 14. 行业资讯 / 知识库 */
        .articles-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .article-link-card {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: var(--radius-md);
            display: block;
            font-weight: 600;
            text-align: center;
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        }

        .article-link-card:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.05);
        }

        /* 15. 智能需求匹配表单 & 联系我们 & 加盟代理 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
        }

        .form-wrapper {
            background: #fff;
            padding: 40px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-group label {
            font-weight: 600;
            font-size: 0.9rem;
        }

        .form-control {
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }

        .submit-btn {
            background: var(--rainbow-gradient);
            color: #fff;
            border: none;
            padding: 15px 30px;
            font-size: 1.1rem;
            font-weight: 700;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            width: 100%;
            box-shadow: 0 6px 20px rgba(0, 114, 255, 0.2);
        }

        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(0, 114, 255, 0.35);
        }

        .contact-info-panel {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .info-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 25px;
        }

        .info-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 15px;
            border-left: 4px solid var(--primary);
            padding-left: 10px;
        }

        .qr-box {
            text-align: center;
            margin-top: 15px;
        }

        .qr-box img {
            width: 130px;
            height: 130px;
            border: 1px solid var(--border-color);
            padding: 5px;
            border-radius: 8px;
        }

        /* 16. 宣传展示图排版区 (非首屏) */
        .showcase-banner-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .showcase-banner-grid img {
            width: 100%;
            border-radius: var(--radius-md);
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: var(--transition);
        }

        .showcase-banner-grid img:hover {
            transform: scale(1.02);
        }

        /* 17. 页脚与友情链接 */
        footer {
            background: #1e293b;
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 0.95rem;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 15px;
        }

        .footer-links h5, .footer-contact h5 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 15px;
        }

        .footer-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }

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

        .friend-links {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 30px;
            margin-bottom: 30px;
        }

        .friend-links h5 {
            color: #fff;
            margin-bottom: 15px;
        }

        .friend-links-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 15px 25px;
        }

        .friend-links-wrap a {
            color: #94a3b8;
            font-size: 0.85rem;
        }

        .friend-links-wrap a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* 浮动客服 */
        .float-service {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: #fff;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

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

        .float-qr-popup {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #fff;
            padding: 15px;
            border-radius: var(--radius-md);
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 160px;
        }

        .float-qr-popup img {
            width: 130px;
            height: 130px;
        }

        .float-btn:hover .float-qr-popup {
            display: block;
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .about-layout, .network-layout, .contact-layout, .sol-content.active {
                grid-template-columns: 1fr;
            }
            .rating-box {
                grid-template-columns: 1fr;
            }
            .rating-score {
                border-right: none;
                border-bottom: 1px solid var(--border-color);
                padding-right: 0;
                padding-bottom: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                display: none;
            }
            .nav-menu.active {
                display: flex;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .showcase-banner-grid {
                grid-template-columns: 1fr;
            }
        }