:root {
            --primary: #FF5D22;
            --primary-hover: #E04D1B;
            --secondary: #00C2A8;
            --dark: #0F172A;
            --light-bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --border-color: #E2E8F0;
            --text-muted: #64748B;
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
            --radius: 12px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        body {
            font-family: var(--font-family);
            background-color: var(--light-bg);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

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

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

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

        .nav-link {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            font-size: 14px;
            transition: color 0.2s;
        }

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

        .nav-btn {
            background-color: var(--primary);
            color: white;
            padding: 8px 18px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            transition: background-color 0.2s, transform 0.2s;
        }

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

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

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            transition: 0.3s;
        }

        /* Hero 首屏 (无图设计，采用炫丽渐变及动态光晕效果) */
        .hero {
            padding-top: 140px;
            padding-bottom: 80px;
            background: radial-gradient(circle at 80% 20%, rgba(255, 93, 34, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(0, 194, 168, 0.08) 0%, transparent 50%),
                        #ffffff;
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 93, 34, 0.1);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 93, 34, 0.2);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.03); }
            100% { transform: scale(1); }
        }

        .hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--dark) 30%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 760px;
            margin: 0 auto 36px auto;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            padding: 14px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(255, 93, 34, 0.3);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 93, 34, 0.4);
        }

        .btn-secondary {
            background-color: var(--dark);
            color: #ffffff;
        }

        .btn-secondary:hover {
            background-color: #1e293b;
            transform: translateY(-2px);
        }

        /* 核心版面通用样式 */
        section {
            padding: 90px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px auto;
        }

        .section-tag {
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 8px;
            display: block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 16px;
        }

        /* 2. 数据指标 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: -30px;
        }

        .stat-card {
            background-color: var(--card-bg);
            border-radius: var(--radius);
            padding: 30px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(255, 93, 34, 0.3);
        }

        .stat-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 3. 关于我们 & 平台介绍 */
        .about-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .about-p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 15px;
        }

        .feature-bullets {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .bullet-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .bullet-icon {
            color: var(--secondary);
            font-weight: 900;
        }

        .bullet-text h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 2px;
        }

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

        .about-visual {
            background: linear-gradient(135deg, rgba(0, 194, 168, 0.05) 0%, rgba(255, 93, 34, 0.05) 100%);
            border-radius: var(--radius);
            padding: 40px;
            border: 1px dashed var(--border-color);
            position: relative;
        }

        .visual-box {
            background-color: var(--card-bg);
            padding: 24px;
            border-radius: 8px;
            box-shadow: var(--shadow-md);
            margin-bottom: 16px;
        }

        /* 4. 全平台AIGC服务 */
        .model-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .model-tag {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            color: var(--dark);
            transition: all 0.2s;
        }

        .model-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: rgba(255, 93, 34, 0.02);
            transform: translateY(-2px);
        }

        /* 5. 一站式AIGC制作 */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scene-card {
            background-color: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 32px 24px;
            transition: all 0.3s;
        }

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

        .scene-icon {
            font-size: 32px;
            margin-bottom: 20px;
            display: inline-block;
        }

        .scene-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .scene-card p {
            color: var(--text-muted);
            font-size: 14px;
        }

        /* 6. 全行业解决方案 */
        .sol-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .sol-card {
            background-color: var(--card-bg);
            border-radius: var(--radius);
            padding: 30px;
            border-left: 4px solid var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .sol-name {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .sol-desc {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 15px;
        }

        .sol-points {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .sol-point {
            background-color: var(--light-bg);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
        }

        /* 7. 全国服务网络 */
        .net-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }

        .net-map-placeholder {
            background: linear-gradient(135deg, rgba(0,194,168,0.1), rgba(255,93,34,0.1));
            border-radius: var(--radius);
            padding: 40px;
            text-align: center;
            font-weight: 700;
            border: 1px solid var(--border-color);
        }

        .net-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .net-item {
            background-color: var(--card-bg);
            padding: 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }

        .net-city {
            font-weight: 700;
            font-size: 16px;
            color: var(--primary);
        }

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

        /* 8. 标准化AIGC流程 */
        .flow-timeline {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-top: 40px;
        }

        .flow-timeline::before {
            content: '';
            position: absolute;
            top: 25px;
            left: 0;
            right: 0;
            height: 4px;
            background-color: var(--border-color);
            z-index: 1;
        }

        .flow-step {
            position: relative;
            z-index: 2;
            text-align: center;
            width: 18%;
        }

        .flow-num {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin: 0 auto 15px auto;
            border: 4px solid var(--light-bg);
            box-shadow: var(--shadow-sm);
        }

        .flow-step:nth-child(even) .flow-num {
            background-color: var(--secondary);
        }

        .flow-title {
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 6px;
        }

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

        /* 9. 技术标准 */
        .tech-box {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .tech-card {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-top: 4px solid var(--secondary);
            padding: 24px;
            border-radius: var(--radius);
        }

        .tech-card h4 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .tech-card p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 10. 客户案例中心 */
        .case-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

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

        .case-img-wrap {
            position: relative;
            background-color: #eaeaea;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .ai-page-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }

        .case-card:hover .ai-page-image {
            transform: scale(1.05);
        }

        .case-info {
            padding: 24px;
        }

        .case-tag {
            background-color: rgba(0, 194, 168, 0.1);
            color: var(--secondary);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 12px;
        }

        .case-title-text {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .case-desc-text {
            color: var(--text-muted);
            font-size: 14px;
        }

        .case-meta {
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 11. 对比评测 */
        .eval-table-container {
            overflow-x: auto;
            background-color: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

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

        .eval-table th, .eval-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .eval-table th {
            background-color: rgba(15, 23, 42, 0.02);
            font-weight: 700;
            color: var(--dark);
        }

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

        .eval-highlight {
            background-color: rgba(255, 93, 34, 0.03);
            font-weight: 600;
            color: var(--primary);
        }

        .score-badge {
            background-color: var(--primary);
            color: white;
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 12px;
        }

        .eval-summary {
            margin-top: 30px;
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .summary-left {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .rating-stars {
            color: #FFD700;
            font-size: 24px;
        }

        .rating-score {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
        }

        /* 12. Token比价参考 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .price-card {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 24px;
            text-align: center;
            position: relative;
        }

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

        .price-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary);
            color: white;
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 700;
        }

        .price-model {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .price-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .price-num span {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 400;
        }

        .price-list {
            list-style: none;
            margin-bottom: 20px;
            font-size: 14px;
            color: var(--text-muted);
            text-align: left;
        }

        .price-list li {
            padding: 6px 0;
            border-bottom: 1px dashed var(--border-color);
        }

        /* 13. & 14. 职业技术培训 & 人工智能培训 */
        .train-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .train-card {
            background-color: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 30px;
            position: relative;
        }

        .train-tag {
            background-color: rgba(255, 93, 34, 0.1);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 12px;
        }

        .train-title {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .train-bullets {
            list-style: none;
            margin-bottom: 24px;
        }

        .train-bullets li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 10px;
            font-size: 14px;
            color: var(--dark);
        }

        .train-bullets li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--secondary);
            font-weight: bold;
        }

        /* 15. & 17. & 18. 帮助中心、自助排查、术语百科 */
        .help-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
        }

        .wiki-card, .trouble-card {
            background-color: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            padding: 24px;
            margin-bottom: 24px;
        }

        .wiki-title, .trouble-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-color);
        }

        .wiki-item, .trouble-item {
            margin-bottom: 15px;
        }

        .wiki-item h5, .trouble-item h5 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--primary);
        }

        .wiki-item p, .trouble-item p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 16. FAQ 折叠面板 */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.2s;
        }

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

        .faq-quest {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            font-size: 16px;
            user-select: none;
        }

        .faq-quest::after {
            content: '+';
            font-size: 22px;
            color: var(--primary);
            transition: transform 0.3s;
        }

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

        .faq-ans {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s cubic-bezier(0, 1, 0, 1);
            color: var(--text-muted);
            font-size: 14px;
        }

        .faq-item.active .faq-ans {
            padding: 0 24px 20px 24px;
            max-height: 500px;
            border-top: 1px solid var(--border-color);
        }

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

        .comment-card {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .comment-text {
            font-size: 14px;
            color: var(--dark);
            margin-bottom: 20px;
            font-style: italic;
        }

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

        .user-info h5 {
            font-size: 14px;
            font-weight: 700;
        }

        .user-info p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 19. 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 24px;
            transition: border-color 0.2s;
        }

        .news-card:hover {
            border-color: var(--primary);
        }

        .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: block;
        }

        .news-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .news-link {
            text-decoration: none;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
        }

        /* 20. & 21. 联系我们、加盟代理 & 智能需求匹配表单 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
        }

        .contact-info-panel {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 40px;
        }

        .contact-method {
            margin-bottom: 24px;
        }

        .contact-method h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .contact-method p {
            font-size: 14px;
            color: var(--dark);
        }

        .qr-area {
            display: flex;
            gap: 24px;
            margin-top: 30px;
        }

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

        .qr-box img {
            width: 120px;
            height: 120px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 8px;
        }

        .qr-box p {
            font-size: 12px;
            font-weight: 600;
        }

        .form-panel {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
            font-family: inherit;
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s;
        }

        .form-control:focus {
            border-color: var(--primary);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px 0;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-col p {
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
        }

        .friend-links a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            margin-right: 12px;
        }

        .friend-links a:hover {
            color: var(--secondary);
        }

        .ai-page-home-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: bold;
        }

        /* 侧边悬浮组件 */
        .sticky-contact {
            position: fixed;
            right: 20px;
            bottom: 40px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 999;
        }

        .sticky-btn {
            width: 48px;
            height: 48px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            position: relative;
            font-size: 18px;
            font-weight: bold;
        }

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

        .sticky-btn .tooltip {
            position: absolute;
            right: 60px;
            top: 50%;
            transform: translateY(-50%);
            background-color: var(--dark);
            color: white;
            padding: 8px 12px;
            border-radius: 4px;
            font-size: 12px;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
        }

        .sticky-btn:hover .tooltip {
            opacity: 1;
            visibility: visible;
            right: 56px;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .eval-table-container {
                margin: 0 -24px;
                border-radius: 0;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: #ffffff;
                flex-direction: column;
                padding: 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 32px;
            }
            .about-layout, .net-layout, .contact-layout, .help-layout, .train-grid, .case-grid, .sol-grid {
                grid-template-columns: 1fr;
            }
            .flow-timeline {
                flex-direction: column;
                gap: 24px;
            }
            .flow-timeline::before {
                display: none;
            }
            .flow-step {
                width: 100%;
                display: flex;
                align-items: center;
                text-align: left;
                gap: 16px;
            }
            .flow-num {
                margin: 0;
            }
            .comment-grid, .news-grid, .price-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }