:root {
            --primary: #6366f1;
            --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
            --rainbow-glow: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.15) 0%, rgba(236, 72, 153, 0.05) 50%, transparent 100%);
            --text-main: #1e293b;
            --text-muted: #64748b;
            --bg-main: #f8fafc;
            --bg-card: rgba(255, 255, 255, 0.9);
            --border-color: rgba(226, 232, 240, 0.8);
            --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            --shadow-md: 0 10px 15px -3px rgba(99, 102, 241, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
            --shadow-lg: 0 20px 25px -5px rgba(99, 102, 241, 0.12), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: --text-main;
            background-color: var(--bg-main);
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(236, 72, 153, 0.05) 0%, transparent 40%);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        /* 布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 80px 0;
            position: relative;
        }

        /* 顶部导航 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

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

        .ai-page-logo {
            height: 40px;
            object-fit: contain;
        }

        .brand-text {
            font-size: 1.25rem;
            font-weight: 700;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-menu {
            display: flex;
            gap: 24px;
            align-items: center;
            list-style: none;
        }

        .nav-item a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
        }

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

        .nav-btn {
            background: var(--primary-gradient);
            color: white !important;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(99, 102, 241, 0.2);
        }

        .nav-btn:hover {
            opacity: 0.9;
            transform: translateY(-2px);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* Hero首屏 - 斑斓彩调风（无图） */
        .hero {
            padding-top: 160px;
            padding-bottom: 100px;
            background: var(--rainbow-glow);
            text-align: center;
            overflow: hidden;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(99, 102, 241, 0.2);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.25;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

        .hero-title span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 720px;
            margin: 0 auto 40px auto;
        }

        .hero-cta {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 60px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: white;
            box-shadow: 0 10px 20px rgba(99, 102, 241, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(99, 102, 241, 0.35);
        }

        .btn-secondary {
            background: white;
            color: var(--text-main);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .btn-secondary:hover {
            background: #f1f5f9;
            transform: translateY(-2px);
        }

        /* 数据指标卡片 */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: rgba(99, 102, 241, 0.3);
        }

        .stat-num {
            font-size: 2rem;
            font-weight: 700;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* section 标题结构 */
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px auto;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* 斑斓线条修饰 */
        .section-header::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary-gradient);
            margin: 16px auto 0 auto;
            border-radius: 2px;
        }

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

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

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

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .about-feat-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
        }

        .about-feat-item h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .about-feat-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 全平台AIGC服务 (模型墙) */
        .model-cloud-wrapper {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .model-list-title {
            text-align: center;
            font-weight: 700;
            margin-bottom: 30px;
            color: var(--text-main);
            font-size: 1.25rem;
        }

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .model-tag {
            padding: 8px 18px;
            border-radius: 50px;
            background: white;
            border: 1px solid var(--border-color);
            font-weight: 500;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .model-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 10px rgba(99, 102, 241, 0.1);
        }

        /* 一站式AIGC制作场景 */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .scenario-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 32px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .scenario-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(236, 72, 153, 0.3);
        }

        .scenario-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            margin-bottom: 20px;
            font-weight: bold;
        }

        .scenario-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
        }

        .scenario-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .sol-card {
            border-radius: 12px;
            background: white;
            border: 1px solid var(--border-color);
            padding: 30px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .sol-card h4 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: var(--primary);
        }

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

        /* 标准化AIGC流程 */
        .steps-timeline {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            position: relative;
            z-index: 2;
        }

        .step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px auto;
            font-weight: 700;
        }

        .step-item h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 技术标准 & 全国服务网络 */
        .tech-network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .glass-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 32px;
            box-shadow: var(--shadow-sm);
        }

        .tech-list, .network-list {
            list-style: none;
            display: grid;
            gap: 16px;
        }

        .tech-list li, .network-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.95rem;
        }

        .marker-icon {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary-gradient);
            flex-shrink: 0;
        }

        /* 对比评测板块 */
        .rating-box {
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(236, 72, 153, 0.05) 100%);
            border: 1.5px dashed var(--primary);
            border-radius: 16px;
            padding: 30px;
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
        }

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

        .rating-score h3 {
            font-size: 3.5rem;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
        }

        .rating-score p {
            font-size: 1rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

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

        .stars {
            color: #f59e0b;
            font-size: 2rem;
            margin-bottom: 8px;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background: white;
            min-width: 800px;
        }

        .compare-table th, .compare-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.95rem;
        }

        .compare-table th {
            background: #f8fafc;
            font-weight: 700;
        }

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

        .compare-table td.highlight-cell {
            background: rgba(99, 102, 241, 0.03);
            font-weight: 600;
            color: var(--primary);
        }

        /* Token比价参考 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .token-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .token-name {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .token-price {
            font-size: 1.3rem;
            color: #10b981;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .token-badge {
            display: inline-block;
            padding: 2px 8px;
            background: #ecfdf5;
            color: #10b981;
            font-size: 0.75rem;
            border-radius: 4px;
            font-weight: 600;
        }

        /* 职业技术培训 & 人工智能培训 */
        .training-banner {
            background: var(--primary-gradient);
            border-radius: 16px;
            padding: 48px;
            color: white;
            margin-bottom: 40px;
            text-align: center;
        }

        .training-banner h3 {
            font-size: 1.8rem;
            margin-bottom: 12px;
        }

        .training-banner p {
            opacity: 0.9;
            max-width: 800px;
            margin: 0 auto;
        }

        .courses-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .course-card {
            background: white;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .course-card h4 {
            font-size: 1.15rem;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .course-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .course-auth {
            font-size: 0.78rem;
            color: var(--primary);
            font-weight: 600;
            text-transform: uppercase;
        }

        /* 案例展示中心 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .case-card {
            border-radius: 12px;
            overflow: hidden;
            background: white;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .case-img-holder {
            width: 100%;
            height: 200px;
            background: #f1f5f9;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

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

        .case-info {
            padding: 24px;
        }

        .case-info h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .case-info p {
            color: var(--text-muted);
            font-size: 0.88rem;
        }

        /* 帮助中心、问答与百科 */
        .help-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-header {
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: white;
            font-size: 0.95rem;
        }

        .faq-header::after {
            content: '+';
            font-size: 1.25rem;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .faq-item.active .faq-header::after {
            content: '-';
            transform: rotate(180deg);
        }

        .faq-content {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-content {
            padding: 0 24px 20px 24px;
            max-height: 1000px;
            transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
        }

        .sidebar-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-box h4 {
            font-size: 1.15rem;
            margin-bottom: 20px;
            border-bottom: 2px solid var(--primary);
            padding-bottom: 8px;
            display: inline-block;
        }

        .wiki-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .wiki-list li h5 {
            font-size: 0.95rem;
            margin-bottom: 4px;
            color: var(--primary);
        }

        .wiki-list li p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 资讯与知识库 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .article-card h4 {
            font-size: 1.05rem;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-card p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 16px;
        }

        .article-card a {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
        }

        /* 用户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .comment-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .user-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
        }

        .user-meta h5 {
            font-size: 0.95rem;
            margin: 0;
        }

        .user-meta span {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

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

        /* 需求匹配表单 & 代理加盟 & 联系我们 */
        .contact-section-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

        .form-container {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }

        .contact-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

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

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

        .form-group label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-main);
        }

        .form-group input, .form-group select, .form-group textarea {
            padding: 12px 16px;
            border: 1.5px solid var(--border-color);
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
        }

        .info-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .info-block h4 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .info-block p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 8px;
        }

        .qr-area {
            display: flex;
            align-items: center;
            gap: 20px;
            background: white;
            padding: 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }

        .qr-area img {
            width: 90px;
            height: 90px;
            border-radius: 4px;
        }

        .qr-text h5 {
            font-size: 0.95rem;
            margin-bottom: 4px;
        }

        .qr-text p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 页脚 */
        .footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1.8fr;
            gap: 50px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 16px;
        }

        .footer-links h5, .footer-contact h5 {
            color: white;
            font-size: 1rem;
            margin-bottom: 20px;
        }

        .footer-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .footer-links a:hover {
            color: white;
        }

        .footer-friends {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            margin-bottom: 24px;
        }

        .friends-list {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 10px;
        }

        .friends-list a {
            color: #64748b;
            font-size: 0.85rem;
        }

        .friends-list a:hover {
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
        }

        /* 浮动客服 */
        .floating-kefu {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .kefu-btn {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
            position: relative;
            transition: var(--transition);
        }

        .kefu-btn:hover {
            transform: scale(1.1);
        }

        .kefu-qr-pop {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: white;
            padding: 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-lg);
            display: none;
            text-align: center;
            width: 160px;
        }

        .kefu-qr-pop img {
            width: 120px;
            height: 120px;
            margin-bottom: 8px;
        }

        .kefu-qr-pop p {
            color: var(--text-main);
            font-size: 0.8rem;
            font-weight: 600;
        }

        .kefu-btn:hover .kefu-qr-pop {
            display: block;
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .tech-network-grid, .help-grid, .contact-section-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .solutions-grid, .cases-grid, .articles-grid, .comments-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-timeline {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: var(--shadow-md);
                border-top: 1px solid var(--border-color);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .solutions-grid, .cases-grid, .articles-grid, .comments-grid {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 1.8rem;
            }
        }