:root {
            --primary: #ff2a74;
            --primary-hover: #e91e63;
            --primary-light: #fff0f5;
            --dark: #1f1f2e;
            --text-main: #2c3e50;
            --text-muted: #6c757d;
            --bg-light: #fffafb;
            --bg-white: #ffffff;
            --border-color: #fce4ec;
            --shadow: 0 10px 30px rgba(255, 42, 116, 0.08);
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

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

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

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

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

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

        .section-title h2 {
            font-size: 2.2rem;
            color: var(--dark);
            margin-bottom: 15px;
            font-weight: 700;
        }

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

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
        }

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

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

        .logo-area img {
            height: 40px;
            width: auto;
        }

        .logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
        }

        .nav-links {
            display: flex;
            gap: 20px;
            list-style: none;
            align-items: center;
        }

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

        .nav-links a:hover, .nav-links a.active {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            color: #fff !important;
            padding: 8px 20px !important;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(255, 42, 116, 0.3);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 42, 116, 0.4);
        }

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

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

        /* Hero 首屏 (无图) */
        .hero {
            padding-top: 150px;
            padding-bottom: 100px;
            background: radial-gradient(circle at 80% 20%, var(--primary-light) 0%, var(--bg-light) 100%);
            text-align: center;
            position: relative;
        }

        .hero-tag {
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: 3rem;
            color: var(--dark);
            line-height: 1.2;
            margin-bottom: 25px;
            font-weight: 800;
        }

        .hero p {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px;
        }

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

        .btn-main {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            color: #fff;
            padding: 15px 35px;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            box-shadow: 0 10px 25px rgba(255, 42, 116, 0.35);
            transition: var(--transition);
        }

        .btn-main:hover {
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(255, 42, 116, 0.45);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--dark);
            border: 2px solid var(--dark);
            padding: 13px 33px;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-outline:hover {
            background-color: var(--dark);
            color: #fff;
            transform: translateY(-3px);
        }

        /* 数据指标卡片 */
        .stats-section {
            background-color: var(--bg-white);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 50px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stat-card h3 {
            font-size: 2.5rem;
            color: var(--primary);
            font-weight: 800;
            margin-bottom: 5px;
        }

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

        /* 关于我们 / 平台介绍 */
        .about {
            background-color: var(--bg-white);
        }

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

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

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

        .highlight-box {
            background-color: var(--primary-light);
            border-left: 4px solid var(--primary);
            padding: 20px;
            border-radius: 0 8px 8px 0;
            margin: 25px 0;
        }

        .highlight-box p {
            font-style: italic;
            font-weight: 500;
            color: var(--primary-hover);
            margin: 0;
        }

        /* AIGC服务 / 模型聚合 */
        .services {
            background-color: var(--bg-light);
        }

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

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

        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(255, 42, 116, 0.15);
        }

        .service-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.3rem;
            color: var(--dark);
            margin-bottom: 12px;
        }

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

        /* 标签云 (模型支持) */
        .tag-cloud-section {
            background-color: var(--bg-white);
            padding: 50px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .tag-cloud-title {
            text-align: center;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 30px;
            color: var(--dark);
        }

        .tag-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 1000px;
            margin: 0 auto;
        }

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

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

        /* 一站式制作 */
        .one-stop {
            background-color: var(--bg-light);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        .feature-item {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            display: flex;
            gap: 20px;
            box-shadow: var(--shadow);
        }

        .feature-info h3 {
            font-size: 1.25rem;
            color: var(--dark);
            margin-bottom: 10px;
        }

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

        /* 行业解决方案与全国网络 */
        .solutions {
            background-color: var(--bg-white);
        }

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

        .solution-card {
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            background-color: var(--bg-white);
            transition: var(--transition);
        }

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

        .solution-card h3 {
            font-size: 1.3rem;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .network-box {
            margin-top: 50px;
            background-color: var(--primary-light);
            border-radius: 12px;
            padding: 40px;
            text-align: center;
        }

        .network-box h4 {
            font-size: 1.5rem;
            color: var(--primary-hover);
            margin-bottom: 15px;
        }

        .network-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-top: 20px;
            font-weight: 500;
        }

        /* 标准化流程 (时间线) */
        .steps {
            background-color: var(--bg-light);
        }

        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline::after {
            content: '';
            position: absolute;
            width: 4px;
            background-color: var(--border-color);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -2px;
        }

        .timeline-container {
            padding: 10px 40px;
            position: relative;
            background-color: inherit;
            width: 50%;
        }

        .timeline-container::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            right: -10px;
            background-color: #fff;
            border: 4px solid var(--primary);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }

        .left-timeline {
            left: 0;
        }

        .right-timeline {
            left: 50%;
        }

        .right-timeline::after {
            left: -10px;
        }

        .timeline-content {
            padding: 20px 30px;
            background-color: var(--bg-white);
            position: relative;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }

        .timeline-content h3 {
            font-size: 1.2rem;
            color: var(--dark);
            margin-bottom: 8px;
        }

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

        /* 对比评测 */
        .comparison {
            background-color: var(--bg-white);
        }

        .comp-header {
            display: flex;
            justify-content: space-around;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            color: #fff;
            padding: 30px;
            border-radius: 12px 12px 0 0;
            text-align: center;
        }

        .comp-score {
            font-size: 3rem;
            font-weight: 800;
        }

        .comp-stars {
            color: #ffeb3b;
            font-size: 1.5rem;
            margin-top: 5px;
        }

        .table-responsive {
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: 0 0 12px 12px;
        }

        .comp-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background-color: var(--bg-white);
            min-width: 600px;
        }

        .comp-table th, .comp-table td {
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .comp-table th {
            background-color: var(--primary-light);
            color: var(--dark);
            font-weight: 700;
        }

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

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

        /* 客户案例中心 */
        .cases {
            background-color: var(--bg-light);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

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

        .case-img {
            height: 240px;
            overflow: hidden;
            position: relative;
        }

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

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

        .case-info {
            padding: 25px;
        }

        .case-tag {
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            margin-bottom: 10px;
            display: block;
        }

        .case-info h3 {
            font-size: 1.3rem;
            color: var(--dark);
            margin-bottom: 10px;
        }

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

        /* 培训业务 */
        .training {
            background-color: var(--bg-white);
        }

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

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

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

        .training-card h3 {
            font-size: 1.25rem;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .training-card ul {
            list-style: none;
            padding-left: 0;
        }

        .training-card li {
            margin-bottom: 10px;
            color: var(--text-main);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .training-card li::before {
            content: "✓";
            color: var(--primary);
            font-weight: bold;
        }

        /* 资讯 / 知识库 / 文章列表 */
        .articles {
            background-color: var(--bg-light);
        }

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

        .article-card {
            background-color: var(--bg-white);
            border-radius: 8px;
            padding: 25px;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 200px;
            transition: var(--transition);
        }

        .article-card:hover {
            box-shadow: var(--shadow);
        }

        .article-card h3 {
            font-size: 1.15rem;
            color: var(--dark);
            margin-bottom: 15px;
            line-height: 1.4;
        }

        .article-card a {
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* 智能需求匹配与联系我们 */
        .contact {
            background-color: var(--bg-white);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

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

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: var(--dark);
            font-weight: 500;
        }

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            background-color: #fff;
            border-radius: 6px;
            color: var(--text-main);
            font-size: 1rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 42, 116, 0.1);
        }

        .btn-submit {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            color: #fff;
            border: none;
            padding: 14px 30px;
            width: 100%;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 6px;
            cursor: pointer;
            box-shadow: 0 5px 15px rgba(255, 42, 116, 0.2);
            transition: var(--transition);
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 42, 116, 0.3);
        }

        .contact-info-box {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .info-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 30px;
        }

        .info-icon {
            font-size: 1.5rem;
            color: var(--primary);
            background-color: var(--primary-light);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .info-text h4 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 5px;
        }

        .info-text p {
            color: var(--text-muted);
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 20px;
        }

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

        .qr-item img {
            width: 120px;
            height: 120px;
            border: 1px solid var(--border-color);
            padding: 5px;
            background-color: #fff;
            border-radius: 8px;
            margin-bottom: 8px;
        }

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

        /* 常见用户问题 FAQ */
        .faq {
            background-color: var(--bg-light);
        }

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

        .faq-item {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .faq-question {
            padding: 20px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: var(--transition);
        }

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

        .faq-item.active .faq-question::after {
            content: '−';
            transform: rotate(90deg);
        }

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

        .faq-answer p {
            padding: 20px;
            color: var(--text-main);
            border-top: 1px solid var(--border-color);
        }

        /* 客户评论卡片 */
        .reviews {
            background-color: var(--bg-white);
        }

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

        .review-card {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-text {
            font-style: italic;
            color: var(--text-main);
            margin-bottom: 20px;
        }

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

        .author-avatar {
            width: 45px;
            height: 45px;
            background-color: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--primary);
            font-size: 1.1rem;
        }

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

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

        /* AI术语百科 & 加盟代理 */
        .encyclopedia {
            background-color: var(--bg-light);
        }

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

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

        .ency-card h3 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 10px;
            border-left: 3px solid var(--primary);
            padding-left: 10px;
        }

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

        .agent-banner {
            background: linear-gradient(135deg, var(--dark) 0%, #2c2c3e 100%);
            color: #fff;
            padding: 60px;
            border-radius: 16px;
            margin-top: 60px;
            text-align: center;
            box-shadow: 0 20px 40px rgba(0,0,0,0.15);
        }

        .agent-banner h3 {
            font-size: 2rem;
            margin-bottom: 15px;
            color: var(--primary-light);
        }

        .agent-banner p {
            max-width: 800px;
            margin: 0 auto 30px;
            color: #ccc;
        }

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: #fff;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

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

        .footer-col h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }

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

        .footer-col p {
            color: #a0a0b0;
            line-height: 1.8;
            margin-bottom: 15px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
        }

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

        .footer-links a {
            color: #a0a0b0;
            transition: var(--transition);
        }

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

        .footer-contact {
            list-style: none;
            padding: 0;
            color: #a0a0b0;
        }

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

        .friend-links {
            margin-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
        }

        .friend-links-title {
            font-weight: bold;
            margin-bottom: 10px;
            color: #fff;
        }

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

        .friend-links-list a {
            color: #a0a0b0;
            font-size: 0.85rem;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .footer-bottom p {
            color: #707080;
        }

        /* 悬浮客服 */
        .floating-kefu {
            position: fixed;
            right: 30px;
            bottom: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .kefu-trigger {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            box-shadow: 0 10px 25px rgba(255, 42, 116, 0.4);
            position: relative;
            transition: var(--transition);
        }

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

        .kefu-popover {
            position: absolute;
            bottom: 75px;
            right: 0;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            width: 250px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
            display: none;
            text-align: center;
        }

        .kefu-popover.active {
            display: block;
        }

        .kefu-popover img {
            width: 150px;
            height: 150px;
            margin: 0 auto 10px;
        }

        .kefu-popover h4 {
            font-size: 1rem;
            color: var(--dark);
            margin-bottom: 5px;
        }

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

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .services-grid, .training-grid, .reviews-grid, .articles-list, .ency-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }

            .nav-links {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 40px 20px;
                gap: 25px;
                transition: var(--transition);
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
                overflow-y: auto;
            }

            .nav-links.active {
                left: 0;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .about-grid, .features-grid, .contact-grid {
                grid-template-columns: 1fr;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .hero-btns {
                flex-direction: column;
                align-items: center;
            }

            .btn-main, .btn-outline {
                width: 100%;
                max-width: 300px;
            }

            .timeline::after {
                left: 31px;
            }

            .timeline-container {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }

            .timeline-container::after {
                left: 21px;
                right: auto;
            }

            .right-timeline {
                left: 0;
            }

            .cases-grid {
                grid-template-columns: 1fr;
            }

            .agent-banner {
                padding: 30px 20px;
            }
        }

        @media (max-width: 480px) {
            .services-grid, .training-grid, .reviews-grid, .articles-list, .ency-grid, .stats-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }