:root {
            --primary: #D32F2F;
            --primary-light: #FFEBEE;
            --primary-dark: #B71C1C;
            --accent: #FF5252;
            --text-dark: #212121;
            --text-muted: #666666;
            --bg-light: #FAFAFA;
            --bg-white: #FFFFFF;
            --border-color: #EEEEEE;
            --container-width: 1200px;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

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

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

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

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

        ul {
            list-style: none;
        }

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

        .container {
            width: 100%;
            max-width: var(--container-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(--text-dark);
            font-weight: 700;
            margin-bottom: 15px;
        }

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

        .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background-color: var(--primary);
            margin: 15px auto 0;
            border-radius: 2px;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 30px;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--bg-white);
            box-shadow: 0 4px 15px rgba(211, 47, 47, 0.3);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            color: var(--bg-white);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(211, 47, 47, 0.4);
        }

        .btn-outline {
            background-color: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }

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

        /* 顶部导航 */
        header {
            background-color: var(--bg-white);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 75px;
        }

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

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

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

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

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

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

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

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

        /* Hero首屏 - 严禁出现图片 */
        .hero-section {
            background: linear-gradient(135deg, #FFF5F5 0%, #FFEBEB 50%, #FFD6D6 100%);
            padding: 100px 0 120px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 30%;
            height: 50%;
            background: radial-gradient(circle, rgba(213,47,47,0.08) 0%, transparent 70%);
            z-index: 1;
        }

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

        .hero-tag {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary-dark);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 25px;
            border: 1px solid rgba(211, 47, 47, 0.2);
        }

        .hero-title {
            font-size: 3rem;
            line-height: 1.25;
            color: var(--text-dark);
            font-weight: 800;
            margin-bottom: 25px;
        }

        .hero-subtitle {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 750px;
            margin-left: auto;
            margin-right: auto;
        }

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

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -50px;
            position: relative;
            z-index: 3;
        }

        .stat-card {
            background-color: var(--bg-white);
            padding: 30px 20px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            border-top: 4px solid var(--primary);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(211, 47, 47, 0.15);
        }

        .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-dark);
            font-weight: 600;
            margin-bottom: 5px;
        }

        .stat-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 关于我们与软件介绍 */
        .about-section {
            background-color: var(--bg-white);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.8rem;
            color: var(--primary-dark);
            margin-bottom: 20px;
            font-weight: 700;
        }

        .about-text {
            color: var(--text-muted);
            margin-bottom: 25px;
            font-size: 1.05rem;
            line-height: 1.8;
        }

        .feature-bullets {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .bullet-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
            color: var(--text-dark);
        }

        .bullet-icon {
            color: var(--primary);
            font-weight: bold;
        }

        /* 全平台AIGC服务体系 */
        .models-section {
            background-color: var(--bg-light);
        }

        .model-tags-container {
            margin-bottom: 40px;
        }

        .model-category-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 15px;
            border-left: 4px solid var(--primary);
            padding-left: 10px;
        }

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 30px;
        }

        .model-badge {
            background-color: var(--bg-white);
            color: var(--text-dark);
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            box-shadow: 0 2px 5px rgba(0,0,0,0.03);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .model-badge:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .scenario-card {
            background-color: var(--bg-white);
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            transition: var(--transition);
            text-align: center;
            border: 1px solid var(--border-color);
        }

        .scenario-card:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 25px rgba(211, 47, 47, 0.1);
            transform: translateY(-3px);
        }

        .scenario-icon {
            font-size: 2rem;
            margin-bottom: 15px;
            display: inline-block;
        }

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

        .scenario-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* 全自动AIGC制作流程 (GPT + Kimi升级版) */
        .process-section {
            background-color: var(--bg-white);
        }

        .timeline {
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
            padding: 40px 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 4px;
            background-color: var(--primary-light);
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            width: 50%;
            padding: 20px 40px;
            box-sizing: border-box;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-dot {
            position: absolute;
            top: 30px;
            width: 20px;
            height: 20px;
            background-color: var(--primary);
            border: 4px solid var(--bg-white);
            border-radius: 50%;
            z-index: 1;
            box-shadow: 0 0 10px rgba(211, 47, 47, 0.5);
        }

        .timeline-item:nth-child(odd) .timeline-dot {
            right: -10px;
        }

        .timeline-item:nth-child(even) .timeline-dot {
            left: -10px;
        }

        .timeline-content {
            background-color: var(--bg-light);
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .timeline-content:hover {
            background-color: var(--primary-light);
            transform: scale(1.02);
        }

        .timeline-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

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

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

        /* 行业解决方案 */
        .solutions-section {
            background-color: var(--bg-light);
        }

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

        .solution-card {
            background-color: var(--bg-white);
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.03);
            border-bottom: 4px solid transparent;
            transition: var(--transition);
        }

        .solution-card:hover {
            border-bottom-color: var(--primary);
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(211, 47, 47, 0.1);
        }

        .solution-info {
            padding: 30px;
        }

        .solution-info h4 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

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

        .solution-tag {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary-dark);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* 全国服务网络 & 标准化服务全流程 */
        .network-section {
            background-color: var(--bg-white);
        }

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

        .network-map-simulation {
            background: radial-gradient(circle, #FFF 20%, #F5F5F5 100%);
            border: 1px solid var(--border-color);
            border-radius: 15px;
            padding: 40px;
            position: relative;
            min-height: 350px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }

        .network-node {
            position: absolute;
            background-color: var(--primary);
            color: var(--bg-white);
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(211, 47, 47, 0.4);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(211, 47, 47, 0.7); }
            70% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(211, 47, 47, 0); }
            100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(211, 47, 47, 0); }
        }

        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
            margin-top: 45px;
        }

        .flow-step {
            background-color: var(--bg-light);
            padding: 20px 15px;
            border-radius: 8px;
            text-align: center;
            position: relative;
        }

        .flow-step-num {
            width: 30px;
            height: 30px;
            background-color: var(--primary);
            color: var(--bg-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin: 0 auto 10px;
        }

        /* 技术标准 */
        .standard-section {
            background-color: var(--bg-light);
        }

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

        .standard-card {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            text-align: left;
            border-left: 5px solid var(--primary);
        }

        .standard-card h4 {
            font-size: 1.2rem;
            color: var(--text-dark);
            margin-bottom: 12px;
        }

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

        /* 案例中心 - 包含图片配置 */
        .cases-section {
            background-color: var(--bg-white);
        }

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

        .case-card {
            background-color: var(--bg-light);
            border-radius: 10px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.08);
        }

        .case-img-wrap {
            position: relative;
            background-color: #000;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.9;
            transition: var(--transition);
        }

        .case-card:hover .case-img-wrap img {
            transform: scale(1.05);
            opacity: 1;
        }

        .case-body {
            padding: 20px;
        }

        .case-tag {
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: inline-block;
        }

        .case-title {
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 10px;
            font-weight: 600;
        }

        /* 对比评测 - 9.9分 */
        .comparison-section {
            background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
        }

        .rating-box {
            background-color: var(--primary-light);
            border-radius: 12px;
            padding: 40px;
            text-align: center;
            max-width: 600px;
            margin: 0 auto 50px;
            border: 1px solid rgba(211, 47, 47, 0.15);
        }

        .rating-stars {
            color: #FFB300;
            font-size: 2.2rem;
            margin-bottom: 10px;
        }

        .rating-score {
            font-size: 4rem;
            font-weight: 900;
            color: var(--primary-dark);
            line-height: 1;
        }

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

        .rating-label {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-top: 10px;
        }

        .comparison-table-wrapper {
            width: 100%;
            overflow-x: auto;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
            border: 1px solid var(--border-color);
            background-color: var(--bg-white);
        }

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

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

        .comparison-table th {
            background-color: #FFF5F5;
            color: var(--text-dark);
            font-weight: 700;
        }

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

        /* Token比价参考 */
        .token-price-section {
            background-color: var(--bg-light);
        }

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

        .price-card {
            background-color: var(--bg-white);
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            border: 1px solid var(--border-color);
            text-align: center;
            position: relative;
        }

        .price-card.featured {
            border-color: var(--primary);
            box-shadow: 0 8px 25px rgba(211, 47, 47, 0.1);
        }

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

        .price-val {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin: 15px 0;
        }

        .price-unit {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .price-features {
            margin: 20px 0 30px;
            text-align: left;
        }

        .price-features li {
            margin-bottom: 10px;
            font-size: 0.9rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 人工智能培训 */
        .training-section {
            background-color: var(--bg-white);
        }

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

        .training-card {
            background-color: var(--bg-light);
            padding: 25px 15px;
            border-radius: 10px;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
            transition: var(--transition);
            border-top: 3px solid var(--border-color);
        }

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

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

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

        /* 用户评论 - 6条 */
        .reviews-section {
            background-color: var(--bg-light);
        }

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

        .review-card {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            border: 1px solid var(--border-color);
        }

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

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

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

        .author-info h5 {
            font-size: 0.95rem;
            color: var(--text-dark);
        }

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

        /* 常见用户问题 FAQ + 自助排查 + 术语百科 */
        .faq-section {
            background-color: var(--bg-white);
        }

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

        .faq-tab-btn {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 10px 24px;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-muted);
            transition: var(--transition);
        }

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

        .faq-content-pane {
            display: none;
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-content-pane.active {
            display: block;
        }

        .accordion-item {
            background-color: var(--bg-light);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .accordion-header {
            padding: 18px 24px;
            background: none;
            border: none;
            width: 100%;
            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;
        }

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

        .accordion-item.open .accordion-header::after {
            transform: rotate(45deg);
        }

        .accordion-body {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }

        .accordion-body-content {
            padding-bottom: 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

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

        .articles-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            margin-bottom: 40px;
        }

        .article-card {
            background-color: var(--bg-white);
            border-radius: 8px;
            padding: 24px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .article-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .article-title {
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 15px;
            line-height: 1.4;
        }

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

        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
        }

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

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        .form-input {
            padding: 12px 16px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
            outline: none;
            transition: var(--transition);
            font-size: 0.95rem;
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
        }

        .contact-info-wrap {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

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

        .info-card h4 {
            margin-bottom: 15px;
            color: var(--text-dark);
            font-size: 1.15rem;
            border-left: 4px solid var(--primary);
            padding-left: 10px;
        }

        .info-list li {
            margin-bottom: 12px;
            font-size: 0.95rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .kefu-qrcode {
            text-align: center;
            margin-top: 15px;
        }

        .kefu-qrcode img {
            width: 140px;
            height: 140px;
            margin: 0 auto 10px;
            border: 1px solid var(--border-color);
            padding: 5px;
            background: #fff;
        }

        /* 友情链接与标签云 */
        .links-section {
            background-color: var(--bg-light);
            border-top: 1px solid var(--border-color);
            padding: 40px 0;
        }

        .links-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 15px 25px;
            justify-content: center;
            font-size: 0.9rem;
        }

        .links-title {
            font-weight: 700;
            color: var(--text-dark);
        }

        /* 页脚 */
        footer {
            background-color: #1A1A1A;
            color: #CCCCCC;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
            border-bottom: 1px solid #333333;
            padding-bottom: 40px;
        }

        .footer-brand h3 {
            color: var(--bg-white);
            margin-bottom: 15px;
        }

        .footer-brand p {
            color: #999999;
            line-height: 1.6;
        }

        .footer-links-title {
            color: var(--bg-white);
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-links-title::after {
            content: '';
            display: block;
            width: 30px;
            height: 2px;
            background-color: var(--primary);
            margin-top: 8px;
        }

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

        .footer-links a {
            color: #AAAAAA;
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            color: #888888;
            font-size: 0.85rem;
        }

        /* 浮动客服 */
        .float-contact {
            position: fixed;
            right: 25px;
            bottom: 25px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            z-index: 999;
        }

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

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

        .float-btn .tooltip {
            position: absolute;
            right: 60px;
            background-color: var(--bg-white);
            color: var(--text-dark);
            padding: 8px 12px;
            border-radius: 4px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            font-size: 0.8rem;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

        .float-btn:hover .tooltip {
            opacity: 1;
            visibility: visible;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                margin-top: -20px;
            }
            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .solutions-grid {
                grid-template-columns: 1fr 1fr;
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 75px;
                left: 0;
                right: 0;
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                border-top: 1px solid var(--border-color);
            }
            
            .nav-menu.show {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

            .hero-title {
                font-size: 2rem;
            }

            .about-grid, .network-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .timeline::before {
                left: 20px;
            }

            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
                text-align: left !important;
            }

            .timeline-item:nth-child(even) {
                left: 0;
            }

            .timeline-dot {
                left: 10px !important;
                right: auto !important;
            }

            .solutions-grid, .cases-grid, .price-grid, .reviews-grid, .articles-list {
                grid-template-columns: 1fr;
            }

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

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

            .form-group.full-width {
                grid-column: span 1;
            }

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