:root {
            --primary-color: #E53E3E;
            --primary-hover: #C53030;
            --primary-light: #FFF5F5;
            --text-dark: #2D3748;
            --text-light: #718096;
            --bg-light: #F7FAFC;
            --bg-white: #FFFFFF;
            --border-color: #E2E8F0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            line-height: 1.6;
        }

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

        /* 布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: 80px 0;
            background-color: var(--bg-white);
        }

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

        /* 艳红热烈风标题装饰 */
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 2.2rem;
            color: var(--text-dark);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background-color: var(--primary-color);
            border-radius: 2px;
        }

        .section-title p {
            color: var(--text-light);
            margin-top: 15px;
            font-size: 1.1rem;
        }

        /* 按钮通用样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-weight: 600;
            border-radius: 6px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
        }

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

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

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

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-sm);
            z-index: 1000;
            transition: var(--transition);
        }

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

        .logo-box {
            display: flex;
            align-items: center;
            height: 40px;
        }

        .logo-box img {
            max-height: 100%;
            width: auto;
        }

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

        .nav-menu a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-dark);
            padding: 5px 0;
            border-bottom: 2px solid transparent;
        }

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

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

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

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

        /* 首屏 Hero 区 - 无图片 */
        .hero-section {
            padding-top: 140px;
            padding-bottom: 100px;
            background: linear-gradient(135deg, #FFF5F5 0%, #FED7D7 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 10% 20%, rgba(229, 62, 62, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 90% 80%, rgba(229, 62, 62, 0.05) 0%, transparent 40%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-content h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            color: #2D3748;
            margin-bottom: 20px;
        }

        .hero-content h1 span {
            color: var(--primary-color);
        }

        .hero-content p {
            font-size: 1.25rem;
            color: var(--text-light);
            margin-bottom: 35px;
        }

        .hero-btn-group {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 40px;
        }

        .hero-btn-main {
            font-size: 1.1rem;
            padding: 14px 35px;
            box-shadow: 0 4px 14px rgba(229, 62, 62, 0.4);
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 50px;
        }

        .stat-card {
            background-color: var(--bg-white);
            padding: 25px 20px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
            border-top: 4px solid var(--primary-color);
            transition: var(--transition);
        }

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

        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 5px;
        }

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

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

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

        .about-text p {
            color: var(--text-light);
            margin-bottom: 20px;
            font-size: 1.05rem;
            line-height: 1.8;
        }

        .about-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .about-feature-item {
            background-color: var(--bg-light);
            padding: 15px;
            border-radius: 6px;
            border-left: 3px solid var(--primary-color);
        }

        .about-feature-item h4 {
            color: var(--text-dark);
            margin-bottom: 5px;
        }

        .about-feature-item p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
        }

        .about-image {
            display: flex;
            justify-content: center;
        }

        .about-image img {
            border-radius: 8px;
            box-shadow: var(--shadow-lg);
            max-width: 100%;
        }

        /* 全平台AIGC服务 (聚合平台展示) */
        .service-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
        }

        .service-tag {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            color: var(--text-dark);
            transition: var(--transition);
        }

        .service-tag:hover {
            background-color: var(--primary-color);
            color: var(--bg-white);
            border-color: var(--primary-color);
            transform: translateY(-2px);
        }

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

        .service-card {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .service-card .icon {
            width: 50px;
            height: 50px;
            background-color: var(--primary-light);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary-color);
            font-size: 1.5rem;
            font-weight: bold;
        }

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

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

        /* 一站式AIGC制作 (主打场景) */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .scene-card {
            background-color: var(--bg-white);
            border-radius: 8px;
            padding: 25px 20px;
            text-align: center;
            border-bottom: 4px solid transparent;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .scene-card h4 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

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

        /* 全行业解决方案 */
        .solution-tabs {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 40px;
        }

        .solution-tab-btn {
            padding: 10px 24px;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            cursor: pointer;
            font-weight: 500;
            transition: var(--transition);
        }

        .solution-tab-btn.active, .solution-tab-btn:hover {
            background-color: var(--primary-color);
            color: var(--bg-white);
            border-color: var(--primary-color);
        }

        .solution-content {
            background-color: var(--bg-white);
            border-radius: 8px;
            padding: 30px;
            box-shadow: var(--shadow-sm);
        }

        .solution-panel {
            display: none;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            align-items: center;
        }

        .solution-panel.active {
            display: grid;
        }

        .solution-text h4 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .solution-text ul {
            list-style: none;
            margin-top: 15px;
        }

        .solution-text ul li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 10px;
            font-size: 0.95rem;
            color: var(--text-light);
        }

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

        .solution-img-box {
            background-color: var(--bg-light);
            border-radius: 6px;
            height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px dashed var(--border-color);
        }

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

        .network-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }

        .network-item {
            background-color: var(--bg-white);
            padding: 15px;
            border-radius: 6px;
            box-shadow: var(--shadow-sm);
            border-left: 3px solid var(--primary-color);
        }

        .network-item h5 {
            font-size: 1rem;
            margin-bottom: 5px;
        }

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

        .network-desc h3 {
            font-size: 1.8rem;
            margin-bottom: 15px;
        }

        .network-desc p {
            color: var(--text-light);
            margin-bottom: 20px;
        }

        /* 标准化AIGC流程 */
        .flow-timeline {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-top: 50px;
        }

        .flow-timeline::before {
            content: '';
            position: absolute;
            top: 25px;
            left: 5%;
            right: 5%;
            height: 2px;
            background-color: var(--border-color);
            z-index: 1;
        }

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

        .flow-badge {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: var(--bg-white);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            box-shadow: 0 0 0 5px var(--bg-white);
            margin-bottom: 15px;
        }

        .flow-step h4 {
            font-size: 1rem;
            margin-bottom: 8px;
        }

        .flow-step p {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* 技术标准 */
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .tech-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 25px;
            transition: var(--transition);
        }

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

        .tech-card h4 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

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

        /* 客户案例中心 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background-color: var(--bg-white);
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

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

        .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-info {
            padding: 20px;
        }

        .case-info span {
            color: var(--primary-color);
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
        }

        .case-info h4 {
            font-size: 1.15rem;
            margin: 5px 0 10px 0;
        }

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

        /* 对比评测 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background-color: var(--bg-white);
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
        }

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

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

        .compare-table th {
            background-color: #FFF5F5;
            color: var(--text-dark);
            font-weight: 600;
        }

        .compare-table tr:hover {
            background-color: var(--bg-light);
        }

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

        .score-box {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            background-color: var(--primary-light);
            border: 1px solid var(--primary-color);
            border-radius: 8px;
            padding: 20px;
            margin-top: 30px;
        }

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

        .score-num {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary-color);
        }

        .score-stars {
            color: #D69E2E;
            font-size: 1.5rem;
        }

        /* Token 比价参考 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .price-card {
            background-color: var(--bg-white);
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 25px;
            text-align: center;
            transition: var(--transition);
        }

        .price-card.popular {
            border-color: var(--primary-color);
            position: relative;
            transform: scale(1.03);
            box-shadow: var(--shadow-md);
        }

        .price-card.popular::before {
            content: '首选推荐';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary-color);
            color: var(--bg-white);
            padding: 2px 12px;
            font-size: 0.75rem;
            border-radius: 10px;
            font-weight: bold;
        }

        .price-card h4 {
            font-size: 1.3rem;
            margin-bottom: 15px;
        }

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

        .price-features {
            list-style: none;
            margin-bottom: 25px;
            text-align: left;
            padding-left: 20px;
        }

        .price-features li {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 8px;
            position: relative;
        }

        .price-features li::before {
            content: '•';
            color: var(--primary-color);
            position: absolute;
            left: -15px;
            font-weight: bold;
        }

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

        .training-card {
            background-color: var(--bg-white);
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
            padding: 30px;
            border-left: 5px solid var(--primary-color);
        }

        .training-card h4 {
            font-size: 1.4rem;
            margin-bottom: 15px;
        }

        .training-card p {
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .certificate-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .cert-tag {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 6px 12px;
            font-size: 0.85rem;
            border-radius: 4px;
            font-weight: 500;
        }

        /* 客户评论卡片 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background-color: var(--bg-white);
            padding: 25px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
            border-top: 3px solid var(--primary-color);
        }

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

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

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: var(--bg-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 0.9rem;
        }

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

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

        /* 常见用户问题 FAQ 折叠面板 */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--bg-white);
            margin-bottom: 12px;
            border-radius: 6px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

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

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary-color);
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--bg-white);
        }

        .faq-answer-content {
            padding: 0 24px 18px 24px;
            color: var(--text-light);
            font-size: 0.95rem;
            border-top: 1px solid var(--border-color);
        }

        /* 常见问题自助排查 & AI术语百科 */
        .help-center-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .help-box {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
        }

        .help-box h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            border-bottom: 2px solid var(--primary-color);
            padding-bottom: 10px;
            display: inline-block;
        }

        .help-list {
            list-style: none;
        }

        .help-list li {
            margin-bottom: 15px;
        }

        .help-list a {
            display: block;
            padding: 10px;
            background-color: var(--bg-light);
            border-radius: 4px;
            font-size: 0.9rem;
            font-weight: 500;
        }

        .help-list a:hover {
            background-color: var(--primary-light);
            color: var(--primary-color);
        }

        /* 资讯与知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .news-card {
            background-color: var(--bg-white);
            padding: 25px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-3px);
            border-color: var(--primary-color);
        }

        .news-card span {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        .news-card h4 {
            font-size: 1.1rem;
            margin: 10px 0;
            line-height: 1.4;
        }

        .news-card a {
            color: var(--primary-color);
            font-weight: 500;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* 智能需求匹配与表单 */
        .form-section-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: flex-start;
        }

        .contact-form-box {
            background-color: var(--bg-white);
            padding: 40px;
            border-radius: 8px;
            box-shadow: var(--shadow-md);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.95rem;
        }

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px var(--primary-light);
        }

        textarea.form-control {
            height: 120px;
            resize: vertical;
        }

        /* 加盟代理 */
        .partner-box {
            background-color: var(--bg-white);
            padding: 40px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
        }

        .partner-box h4 {
            font-size: 1.3rem;
            margin-bottom: 15px;
        }

        .partner-box p {
            color: var(--text-light);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        .contact-info-list {
            margin-top: 30px;
        }

        .contact-info-item {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .contact-info-item .icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

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

        .float-item {
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: var(--bg-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            position: relative;
        }

        .float-item:hover {
            background-color: var(--primary-hover);
            transform: scale(1.1);
        }

        .float-item .tooltip {
            position: absolute;
            right: 60px;
            background-color: var(--text-dark);
            color: var(--bg-white);
            padding: 8px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
        }

        .float-item:hover .tooltip {
            opacity: 1;
        }

        /* 微信客服弹窗 */
        .wechat-pop {
            display: none;
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background-color: var(--bg-white);
            border-radius: 8px;
            box-shadow: var(--shadow-lg);
            padding: 30px;
            z-index: 1001;
            text-align: center;
            max-width: 300px;
            width: 90%;
        }

        .wechat-pop img {
            width: 100%;
            max-width: 200px;
            margin-bottom: 15px;
        }

        .wechat-pop-close {
            position: absolute;
            top: 10px;
            right: 10px;
            cursor: pointer;
            font-size: 1.2rem;
        }

        .pop-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0,0,0,0.5);
            z-index: 1000;
        }

        /* 页脚 */
        footer {
            background-color: #1A202C;
            color: #A0AEC0;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo img {
            max-height: 40px;
            margin-bottom: 20px;
        }

        .footer-col h4 {
            color: var(--bg-white);
            margin-bottom: 20px;
            font-size: 1.05rem;
        }

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

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

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

        .friend-links {
            border-top: 1px solid #2D3748;
            padding-top: 20px;
            margin-bottom: 20px;
        }

        .friend-links a {
            margin-right: 15px;
            display: inline-block;
            color: #A0AEC0;
        }

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

        .footer-bottom {
            border-top: 1px solid #2D3748;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .network-grid, .training-grid, .help-center-grid, .form-section-grid {
                grid-template-columns: 1fr;
            }
            .service-grid, .scene-grid, .case-grid, .price-grid, .reviews-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .price-card.popular {
                transform: none;
            }
            .flow-timeline {
                flex-direction: column;
                gap: 30px;
            }
            .flow-timeline::before {
                display: none;
            }
            .flow-step {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 20px;
                box-shadow: var(--shadow-md);
                display: none;
                gap: 15px;
            }
            .nav-menu.active {
                display: flex;
            }
            .service-grid, .scene-grid, .case-grid, .price-grid, .reviews-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .solution-panel {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }