:root {
            --primary: #0f5b5c;
            --primary-light: #168587;
            --primary-accent: #00b4b6;
            --bg-gradient: linear-gradient(135deg, #f2faf9 0%, #e6f5f4 100%);
            --text-dark: #1f2937;
            --text-muted: #4b5563;
            --text-light: #9ca3af;
            --white: #ffffff;
            --card-shadow: 0 10px 30px rgba(15, 91, 92, 0.05);
            --transition: all 0.3s ease;
        }

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

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

        a {
            text-decoration: none;
            color: inherit;
        }

        li {
            list-style: none;
        }

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

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

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

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

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

        .brand-name {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 1px;
        }

        nav {
            display: flex;
            align-items: center;
            gap: 25px;
        }

        .nav-links {
            display: flex;
            gap: 20px;
        }

        .nav-links a {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
            transition: var(--transition);
        }

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

        .nav-btn {
            background-color: var(--primary);
            color: var(--white) !important;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.9rem;
            transition: var(--transition);
        }

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

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

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

        /* Hero首屏 - 无图科技风 */
        .hero {
            padding: 160px 0 100px 0;
            background: var(--bg-gradient);
            position: relative;
            text-align: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 180, 182, 0.08) 0%, transparent 60%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }

        .badge {
            display: inline-block;
            background-color: rgba(0, 180, 182, 0.1);
            color: var(--primary-light);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 25px;
            letter-spacing: 1px;
            animation: pulse 2s infinite;
        }

        .hero h1 {
            font-size: 2.5rem;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 20px;
            font-weight: 800;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .btn-primary {
            background-color: var(--primary-accent);
            color: var(--white);
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(0, 180, 182, 0.3);
            transition: var(--transition);
        }

        .btn-primary:hover {
            background-color: var(--primary-light);
            box-shadow: 0 6px 20px rgba(0, 180, 182, 0.4);
            transform: translateY(-2px);
        }

        .btn-secondary {
            background-color: var(--white);
            color: var(--primary);
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 600;
            border: 1px solid rgba(15, 91, 92, 0.2);
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background-color: #f2faf9;
            transform: translateY(-2px);
        }

        /* 统一标题组件 */
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-title h2 {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 3px;
            background-color: var(--primary-accent);
            margin: 8px auto 0 auto;
            border-radius: 2px;
        }

        .section-title p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 板块公用 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid #f0f5f5;
        }

        /* 数据指标 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }

        .stat-card {
            background: var(--white);
            padding: 30px 20px;
            border-radius: 12px;
            text-align: center;
            box-shadow: var(--card-shadow);
            border-top: 4px solid var(--primary-accent);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-number {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
        }

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

        /* 关于我们与平台介绍 */
        .about-wrap {
            display: flex;
            align-items: center;
            gap: 50px;
        }

        .about-text {
            flex: 1;
        }

        .about-text p {
            margin-bottom: 20px;
            color: var(--text-muted);
        }

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

        .feature-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background-color: #f7fdfd;
            padding: 15px;
            border-radius: 8px;
            border-left: 3px solid var(--primary-accent);
        }

        .feature-item span {
            font-weight: 600;
            color: var(--primary);
        }

        /* AIGC服务与一站式制作 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--white);
            padding: 40px 30px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
            border: 1px solid #f0fdfa;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 180, 182, 0.1);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background-color: #e0f2fe;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: var(--primary-accent);
            font-size: 1.5rem;
        }

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

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

        /* 标签云 */
        .tag-cloud-wrap {
            margin-top: 40px;
            background-color: #f7fcfc;
            padding: 30px;
            border-radius: 12px;
            border: 1px dashed rgba(15, 91, 92, 0.2);
        }

        .tag-cloud-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 15px;
            text-align: center;
        }

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

        .tag {
            background-color: var(--white);
            color: var(--primary-light);
            border: 1px solid rgba(0, 180, 182, 0.15);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .tag:hover {
            background-color: var(--primary-accent);
            color: var(--white);
        }

        /* 行业解决方案与流程 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

        .solution-card:hover {
            transform: translateY(-5px);
        }

        .solution-head {
            background-color: var(--primary);
            color: var(--white);
            padding: 25px 20px;
            text-align: center;
        }

        .solution-head h3 {
            font-size: 1.2rem;
            margin-bottom: 5px;
        }

        .solution-body {
            padding: 30px 25px;
        }

        .solution-body ul li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 12px;
            font-size: 0.95rem;
            color: var(--text-muted);
        }

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

        /* 步骤流程 */
        .step-timeline {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
            margin-top: 40px;
        }

        .step-card {
            background-color: var(--white);
            padding: 25px 20px;
            border-radius: 10px;
            box-shadow: var(--card-shadow);
            text-align: center;
            position: relative;
            border: 1px solid #eef7f6;
        }

        .step-num {
            width: 40px;
            height: 40px;
            background-color: var(--primary-accent);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 15px auto;
        }

        .step-card h4 {
            color: var(--primary);
            font-size: 1.05rem;
            margin-bottom: 10px;
        }

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

        /* 客户案例中心 (横版图 & 方版图 & 宣传图) */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            border: 1px solid #f0fdfa;
        }

        .case-img-wrap {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background-color: #e5e7eb;
        }

        .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: 25px;
        }

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

        .case-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        .case-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-light);
            border-top: 1px solid #f3f4f6;
            padding-top: 15px;
        }

        /* 对比评测 */
        .rating-banner {
            background: linear-gradient(135deg, var(--primary) 0%, #168587 100%);
            color: var(--white);
            border-radius: 16px;
            padding: 40px;
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--card-shadow);
        }

        .rating-left h3 {
            font-size: 1.8rem;
            margin-bottom: 10px;
        }

        .rating-stars {
            color: #fbbf24;
            font-size: 1.5rem;
            margin-bottom: 5px;
        }

        .rating-score {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-accent);
        }

        .rating-score span {
            font-size: 1.5rem;
            color: var(--white);
            font-weight: normal;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background-color: var(--white);
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            border: 1px solid #f0fdfa;
        }

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

        .comparison-table th, .comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid #f3f4f6;
        }

        .comparison-table th {
            background-color: #f7fdfd;
            color: var(--primary);
            font-weight: 700;
        }

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

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

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

        .price-card {
            background-color: var(--white);
            padding: 30px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            text-align: center;
            border: 1px solid #f0fdfa;
        }

        .price-card.featured {
            border: 2px solid var(--primary-accent);
            position: relative;
        }

        .price-card.featured::after {
            content: "最优选";
            position: absolute;
            top: 0;
            right: 20px;
            transform: translateY(-50%);
            background-color: var(--primary-accent);
            color: var(--white);
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 10px;
            font-weight: bold;
        }

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

        .price-amount {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-accent);
            margin-bottom: 20px;
        }

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

        .price-features {
            margin-bottom: 25px;
            text-align: left;
        }

        .price-features li {
            padding: 8px 0;
            font-size: 0.9rem;
            color: var(--text-muted);
            border-bottom: 1px dashed #f3f4f6;
        }

        /* 培训版块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

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

        .training-info h3 {
            font-size: 1.75rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

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

        .training-item {
            background-color: var(--white);
            padding: 20px;
            border-radius: 10px;
            box-shadow: var(--card-shadow);
            border-left: 4px solid var(--primary-accent);
        }

        .training-item h4 {
            color: var(--primary);
            margin-bottom: 5px;
        }

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

        /* FAQ折叠面板 */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--white);
            border-radius: 8px;
            margin-bottom: 15px;
            box-shadow: var(--card-shadow);
            border: 1px solid #f0fdfa;
            overflow: hidden;
        }

        .faq-question {
            padding: 20px 25px;
            font-weight: 600;
            color: var(--primary);
            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;
            font-weight: 300;
            transition: var(--transition);
        }

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

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

        .faq-answer p {
            padding: 0 25px 20px 25px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

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

        .review-card {
            background-color: var(--white);
            padding: 30px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            border: 1px solid #f0fdfa;
        }

        .review-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .review-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: #e0f2fe;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .review-meta h4 {
            font-size: 1rem;
            color: var(--primary);
        }

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

        .review-text {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* 资讯与知识库 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .article-card {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            border: 1px solid #f0fdfa;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .article-content {
            padding: 25px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            flex-grow: 1;
        }

        .article-content h3 {
            font-size: 1.1rem;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-content p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 20px;
            line-height: 1.5;
        }

        .article-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary-accent);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .article-link:hover {
            color: var(--primary);
        }

        /* 术语百科 */
        .wiki-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .wiki-card {
            background-color: var(--white);
            padding: 20px;
            border-radius: 8px;
            box-shadow: var(--card-shadow);
            border-left: 3px solid var(--primary-light);
        }

        .wiki-card h4 {
            color: var(--primary);
            font-size: 1rem;
            margin-bottom: 8px;
        }

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

        /* 服务网络及全国支持 */
        .network-wrap {
            display: flex;
            gap: 50px;
            align-items: center;
        }

        .network-list {
            flex: 1;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .network-card {
            background-color: var(--white);
            padding: 20px;
            border-radius: 8px;
            box-shadow: var(--card-shadow);
        }

        .network-card h4 {
            color: var(--primary);
            margin-bottom: 8px;
        }

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

        /* 联系我们与表单 */
        .contact-wrap {
            display: flex;
            gap: 50px;
        }

        .contact-info {
            flex: 1;
        }

        .contact-details {
            margin-bottom: 30px;
        }

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

        .contact-icon {
            width: 40px;
            height: 40px;
            background-color: #f0fdfa;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .qrcode-wrap {
            display: flex;
            gap: 20px;
            align-items: center;
            margin-top: 30px;
        }

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

        .qrcode-box img {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            border: 1px solid #eef2f2;
            padding: 5px;
            background-color: var(--white);
        }

        .qrcode-box p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 8px;
        }

        .contact-form-wrap {
            flex: 1;
            background-color: var(--white);
            padding: 40px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            border: 1px solid #f0fdfa;
        }

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

        .form-group label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border-radius: 6px;
            border: 1px solid #d1d5db;
            outline: none;
            font-family: inherit;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary-accent);
            box-shadow: 0 0 0 3px rgba(0, 180, 182, 0.15);
        }

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

        .btn-submit {
            width: 100%;
            background-color: var(--primary);
            color: var(--white);
            border: none;
            padding: 14px;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

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

        /* 侧边悬浮客服 */
        .float-service {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(15, 91, 92, 0.2);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--primary-accent);
            transform: scale(1.05);
        }

        .float-btn .tooltip {
            position: absolute;
            right: 60px;
            background-color: var(--white);
            color: var(--text-dark);
            padding: 10px;
            border-radius: 8px;
            box-shadow: var(--card-shadow);
            border: 1px solid #eef2f2;
            width: 150px;
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
            text-align: center;
        }

        .float-btn:hover .tooltip {
            opacity: 1;
            pointer-events: auto;
        }

        .float-btn .tooltip img {
            width: 100%;
            height: auto;
            border-radius: 4px;
        }

        /* 页脚 */
        footer {
            background-color: #0d1e1f;
            color: #d1d5db;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--white);
            margin-bottom: 20px;
            font-size: 1rem;
            position: relative;
            padding-bottom: 8px;
        }

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

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

        .footer-col ul li a {
            color: #9ca3af;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary-accent);
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friend-links a {
            color: #9ca3af;
            font-size: 0.85rem;
            background-color: rgba(255, 255, 255, 0.05);
            padding: 4px 10px;
            border-radius: 4px;
            transition: var(--transition);
        }

        .friend-links a:hover {
            color: var(--white);
            background-color: var(--primary-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            text-align: center;
            font-size: 0.8rem;
            color: #6b7280;
        }

        /* 动画关键帧 */
        @keyframes pulse {
            0% {
                transform: scale(1);
                box-shadow: 0 0 0 0 rgba(0, 180, 182, 0.4);
            }
            70% {
                transform: scale(1.05);
                box-shadow: 0 0 0 10px rgba(0, 180, 182, 0);
            }
            100% {
                transform: scale(1);
                box-shadow: 0 0 0 0 rgba(0, 180, 182, 0);
            }
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .stats-grid, .service-grid, .solutions-grid, .cases-grid, .price-list, .reviews-grid, .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-timeline {
                grid-template-columns: repeat(3, 1fr);
            }
            .wiki-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--white);
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .about-wrap, .network-wrap, .contact-wrap {
                flex-direction: column;
            }
            .stats-grid, .service-grid, .solutions-grid, .cases-grid, .price-list, .reviews-grid, .articles-grid, .training-grid, .step-timeline, .wiki-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .rating-banner {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }
        }