:root {
            --primary: #E60012;
            --primary-hover: #C0000F;
            --primary-light: #FFF5F5;
            --secondary: #2B2D42;
            --text-main: #1F2029;
            --text-muted: #5C5E6E;
            --bg-light: #F8F9FA;
            --border-color: #EAEAEA;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            --shadow-sm: 0 2px 8px rgba(230, 0, 18, 0.05);
            --shadow-md: 0 8px 24px rgba(230, 0, 18, 0.08);
            --shadow-lg: 0 16px 32px rgba(230, 0, 18, 0.12);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            color: var(--text-main);
            background-color: #FFFFFF;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .section-padding {
            padding: 80px 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 50px 0;
            }
        }

        /* 统一标题样式 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            color: var(--secondary);
            margin-bottom: 15px;
            font-weight: 700;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background-color: var(--primary);
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
        }

        /* 按钮基础样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(230, 0, 18, 0.3);
        }

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

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

        /* 1. Header & Navigation */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            backdrop-filter: blur(10px);
        }

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

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

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

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 25px;
        }

        .nav-menu a {
            font-weight: 500;
            color: var(--secondary);
            font-size: 0.95rem;
        }

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

        .nav-btn {
            display: flex;
            align-items: center;
            gap: 15px;
        }

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

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--secondary);
            transition: var(--transition);
        }

        /* 2. Hero Section (No Image) */
        .hero-section {
            position: relative;
            background: radial-gradient(circle at top right, var(--primary-light) 0%, #FFFFFF 60%);
            padding: 100px 0 80px 0;
            overflow: hidden;
        }

        .hero-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .hero-tag {
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(230, 0, 18, 0.2);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        .hero-title {
            font-size: 3rem;
            line-height: 1.25;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 24px;
            max-width: 900px;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 35px;
            max-width: 750px;
        }

        .hero-actions {
            display: flex;
            gap: 15px;
            margin-bottom: 50px;
            flex-wrap: wrap;
            justify-content: center;
        }

        /* 3. 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            width: 100%;
            margin-top: 20px;
        }

        .stat-card {
            background: #FFFFFF;
            padding: 25px 20px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .stat-num {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }

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

        /* 4. 关于我们 */
        .about-section {
            background-color: var(--bg-light);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            color: var(--secondary);
            margin-bottom: 20px;
            position: relative;
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 15px;
            font-size: 1.05rem;
        }

        .about-badge-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 30px;
        }

        .about-badge-item {
            background-color: #FFFFFF;
            padding: 15px;
            border-radius: 6px;
            border-left: 4px solid var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .about-badge-item h4 {
            color: var(--secondary);
            font-size: 1rem;
            margin-bottom: 5px;
        }

        .about-badge-item p {
            font-size: 0.85rem;
            margin: 0;
        }

        /* 5. 全平台AIGC服务体系 & 标签云 */
        .services-section {
            background-color: #FFFFFF;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            margin-bottom: 50px;
        }

        .service-card {
            background-color: var(--bg-light);
            border-radius: 8px;
            padding: 30px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .service-card:hover {
            background-color: #FFFFFF;
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-5px);
        }

        .service-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--secondary);
        }

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

        .tag-cloud-wrapper {
            background-color: var(--bg-light);
            border-radius: 12px;
            padding: 40px 30px;
            text-align: center;
        }

        .tag-cloud-title {
            font-size: 1.2rem;
            color: var(--secondary);
            margin-bottom: 25px;
            font-weight: 600;
        }

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

        .tag-item {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-main);
            transition: var(--transition);
        }

        .tag-item:hover {
            background-color: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            transform: scale(1.05);
        }

        /* 6. 全自动AIGC制作流程 & 标准化服务流程 */
        .process-section {
            background-color: var(--bg-light);
        }

        .process-flow {
            position: relative;
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 50px;
        }

        .process-flow::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 50px;
            right: 50px;
            height: 2px;
            background: repeating-linear-gradient(to right, var(--border-color) 0px, var(--border-color) 8px, transparent 8px, transparent 16px);
            z-index: 1;
        }

        .process-step {
            position: relative;
            z-index: 2;
            flex: 1;
            text-align: center;
            background: #FFFFFF;
            padding: 30px 20px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .step-num {
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 20px auto;
            box-shadow: 0 0 0 6px var(--primary-light);
        }

        .process-step h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--secondary);
        }

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

        /* 7. 全行业解决方案 & 技术标准 */
        .solution-section {
            background-color: #FFFFFF;
        }

        .solution-tabs {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 40px;
        }

        .tab-btn {
            padding: 12px 25px;
            border: 1px solid var(--border-color);
            background-color: #FFFFFF;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }

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

        .tab-content {
            display: none;
            background-color: var(--bg-light);
            border-radius: 8px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }

        .tab-content.active {
            display: block;
        }

        .solution-detail-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .solution-features h4 {
            color: var(--secondary);
            margin-bottom: 15px;
            font-size: 1.2rem;
        }

        .solution-features ul {
            list-style: none;
        }

        .solution-features ul li {
            margin-bottom: 10px;
            position: relative;
            padding-left: 20px;
            font-size: 0.95rem;
        }

        .solution-features ul li::before {
            content: '✓';
            color: var(--primary);
            position: absolute;
            left: 0;
            font-weight: bold;
        }

        /* 8. 全国服务网络 */
        .network-section {
            background-color: var(--bg-light);
            text-align: center;
        }

        .network-map-container {
            background: #FFFFFF;
            border-radius: 12px;
            padding: 40px;
            box-shadow: var(--shadow-sm);
            max-width: 800px;
            margin: 0 auto;
        }

        .network-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .network-node {
            padding: 15px;
            background-color: var(--bg-light);
            border-radius: 6px;
            border-left: 3px solid var(--primary);
            text-align: left;
        }

        .network-node h4 {
            font-size: 1rem;
            color: var(--secondary);
        }

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

        /* 9. 客户案例中心 */
        .cases-section {
            background-color: #FFFFFF;
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .case-card {
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            background-color: #FFFFFF;
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .case-img-wrap {
            overflow: hidden;
            background-color: #EAEAEA;
            aspect-ratio: 16/10;
        }

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

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

        .case-info {
            padding: 20px;
        }

        .case-tag {
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: inline-block;
        }

        .case-info h3 {
            font-size: 1.15rem;
            color: var(--secondary);
            margin-bottom: 10px;
        }

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

        /* 10. 对比评测 */
        .rating-section {
            background-color: var(--bg-light);
        }

        .rating-summary-box {
            background-color: #FFFFFF;
            border-radius: 12px;
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .rating-score-block {
            text-align: center;
            flex: 1;
            border-right: 1px solid var(--border-color);
            padding: 20px;
        }

        .rating-score-block .score {
            font-size: 4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }

        .rating-score-block .max-score {
            font-size: 1.2rem;
            color: var(--text-muted);
        }

        .rating-stars-block {
            text-align: center;
            flex: 2;
            padding: 20px;
        }

        .stars {
            color: #FFC107;
            font-size: 2rem;
            margin-bottom: 10px;
        }

        .rating-comment {
            font-size: 1.1rem;
            color: var(--secondary);
            font-weight: 600;
        }

        .compare-table-wrapper {
            background-color: #FFFFFF;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            overflow-x: auto;
            border: 1px solid var(--border-color);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

        .compare-table th, .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }

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

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

        .compare-table td strong {
            color: var(--primary);
        }

        /* 11. Token 比价参考 & 价格参考 */
        .token-section {
            background-color: #FFFFFF;
        }

        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .token-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 30px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

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

        .token-card.popular::before {
            content: '推荐';
            position: absolute;
            top: 15px;
            right: 15px;
            background-color: var(--primary);
            color: #FFFFFF;
            font-size: 0.75rem;
            padding: 3px 8px;
            border-radius: 3px;
            font-weight: 600;
        }

        .token-card h3 {
            font-size: 1.4rem;
            color: var(--secondary);
            margin-bottom: 15px;
        }

        .token-price {
            font-size: 1.8rem;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 20px;
        }

        .token-price span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: normal;
        }

        .token-features {
            list-style: none;
            margin-bottom: 30px;
            text-align: left;
        }

        .token-features li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .token-features li:last-child {
            border-bottom: none;
        }

        /* 12. 职业技术培训 & 人工智能培训 */
        .training-section {
            background-color: var(--bg-light);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .training-card {
            background-color: #FFFFFF;
            border-radius: 8px;
            padding: 25px 15px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .training-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 15px;
        }

        .training-card h3 {
            font-size: 1rem;
            color: var(--secondary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .training-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 13. 客户评论 */
        .reviews-section {
            background-color: #FFFFFF;
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background-color: var(--bg-light);
            border-radius: 8px;
            padding: 30px;
            border: 1px solid var(--border-color);
        }

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

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

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

        .user-info h4 {
            font-size: 0.95rem;
            color: var(--secondary);
        }

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

        /* 14. 行业资讯 / 知识库 */
        .news-section {
            background-color: var(--bg-light);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .news-card {
            background-color: #FFFFFF;
            border-radius: 8px;
            padding: 20px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .news-card h3 {
            font-size: 0.95rem;
            color: var(--secondary);
            margin-bottom: 12px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            height: 2.8em;
        }

        .news-card a {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* 15. 智能需求匹配 (表单) & 联系我们 */
        .contact-section {
            background-color: #FFFFFF;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 3fr 2fr;
            gap: 40px;
        }

        .form-container {
            background-color: var(--bg-light);
            padding: 40px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .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-size: 0.9rem;
            font-weight: 600;
            color: var(--secondary);
        }

        .form-group input, .form-group select, .form-group textarea {
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            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 var(--primary-light);
        }

        .contact-info-block {
            background-color: var(--secondary);
            color: #FFFFFF;
            padding: 40px;
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-info-block h3 {
            font-size: 1.8rem;
            margin-bottom: 25px;
            color: #FFFFFF;
        }

        .contact-methods {
            list-style: none;
            margin-bottom: 30px;
        }

        .contact-methods li {
            margin-bottom: 15px;
            font-size: 0.95rem;
        }

        .contact-qr-wrapper {
            display: flex;
            gap: 20px;
            align-items: center;
            background: rgba(255, 255, 255, 0.05);
            padding: 15px;
            border-radius: 8px;
        }

        .contact-qr-wrapper img {
            width: 80px;
            height: 80px;
            background-color: #FFFFFF;
            border-radius: 4px;
        }

        .contact-qr-info {
            font-size: 0.85rem;
        }

        .contact-qr-info h4 {
            margin-bottom: 5px;
            color: #FFFFFF;
        }

        .contact-qr-info p {
            color: rgba(255,255,255,0.7);
        }

        /* 16. FAQ 折叠面板 & 帮助中心 */
        .faq-section {
            background-color: var(--bg-light);
        }

        .faq-grid {
            max-width: 900px;
            margin: 0 auto 50px auto;
        }

        .faq-item {
            background-color: #FFFFFF;
            border-radius: 8px;
            margin-bottom: 15px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-header {
            padding: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            color: var(--secondary);
            transition: var(--transition);
        }

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

        .faq-icon {
            font-weight: normal;
            font-size: 1.2rem;
            transition: var(--transition);
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: #FAFADA;
        }

        .faq-content {
            padding: 20px;
            border-top: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-body {
            max-height: 200px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* 帮助中心自助排查 & 百科 */
        .help-toolbox {
            max-width: 900px;
            margin: 0 auto;
            background-color: #FFFFFF;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 30px;
        }

        .toolbox-title {
            font-size: 1.2rem;
            color: var(--secondary);
            margin-bottom: 20px;
            text-align: center;
            font-weight: 600;
        }

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

        .toolbox-box {
            background-color: var(--bg-light);
            padding: 20px;
            border-radius: 8px;
        }

        .toolbox-box h4 {
            color: var(--secondary);
            margin-bottom: 10px;
            font-size: 1rem;
        }

        .toolbox-box p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .toolbox-link {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 600;
        }

        /* 17. Footer */
        footer {
            background-color: var(--secondary);
            color: #FFFFFF;
            padding: 60px 0 20px 0;
            border-top: 4px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-about p {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            margin-top: 15px;
            line-height: 1.7;
        }

        .footer-links h4 {
            font-size: 1.1rem;
            color: #FFFFFF;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-links h4::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 30px;
            height: 2px;
            background-color: var(--primary);
        }

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

        .footer-links ul li {
            margin-bottom: 12px;
        }

        .footer-links ul li a {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
        }

        .footer-links ul li a:hover {
            color: var(--primary);
            padding-left: 5px;
        }

        .footer-social-wrapper {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .footer-social-info {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
        }

        .footer-social-info strong {
            color: #FFFFFF;
        }

        .friend-links-area {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
        }

        .friend-links-area a {
            margin-right: 15px;
            color: rgba(255,255,255,0.6);
        }

        .friend-links-area a:hover {
            color: #FFFFFF;
        }

        .copyright-area {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }

        /* 18. 悬浮客服 */
        .float-bar {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-item {
            width: 50px;
            height: 50px;
            background-color: #FFFFFF;
            box-shadow: var(--shadow-lg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .float-item:hover {
            background-color: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }

        .float-item svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        .float-qr-popup {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 15px;
            box-shadow: var(--shadow-lg);
            display: none;
            text-align: center;
            width: 140px;
        }

        .float-qr-popup img {
            width: 110px;
            height: 110px;
            margin-bottom: 8px;
        }

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

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

        /* 移动端响应式样式 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid, .cases-grid, .token-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: #FFFFFF;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                gap: 15px;
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .about-grid, .solution-detail-grid, .contact-grid, .toolbox-grid {
                grid-template-columns: 1fr;
            }
            .process-flow {
                flex-direction: column;
                gap: 30px;
            }
            .process-flow::before {
                display: none;
            }
            .training-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .rating-summary-box {
                flex-direction: column;
                gap: 20px;
            }
            .rating-score-block {
                border-right: none;
                border-bottom: 1px solid var(--border-color);
                padding-bottom: 20px;
                width: 100%;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }