:root {
            --primary: #10B981;
            --primary-hover: #059669;
            --primary-light: #ECFDF5;
            --dark: #062016;
            --text-main: #1F2937;
            --text-muted: #4B5563;
            --bg-light: #F4FBF7;
            --bg-white: #FFFFFF;
            --border-color: #E5E7EB;
            --accent: #00E676;
            --shadow: 0 10px 15px -3px rgba(16, 185, 129, 0.1), 0 4px 6px -2px rgba(16, 185, 129, 0.05);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 统一布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 导航栏 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
        }

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

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

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

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: 1px;
        }

        .logo-text span {
            color: var(--primary);
        }

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

        .nav-link {
            text-decoration: none;
            color: var(--text-main);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

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

        .nav-btn {
            background-color: var(--primary);
            color: white;
            padding: 8px 18px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .nav-btn:hover {
            background-color: var(--primary-hover);
            box-shadow: var(--shadow);
        }

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

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

        /* 首屏 Hero 区 (绝对无图) */
        .hero-section {
            padding: 160px 0 100px 0;
            background: radial-gradient(circle at 80% 20%, var(--primary-light) 0%, var(--bg-light) 50%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 10%;
            left: 5%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(16,185,129,0.08) 0%, transparent 70%);
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            background-color: var(--primary-light);
            border: 1px solid rgba(16,185,129,0.2);
            color: var(--primary-hover);
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 25px;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.03); }
            100% { transform: scale(1); }
        }

        .hero-title {
            font-size: 44px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-title span {
            color: var(--primary);
            position: relative;
            display: inline-block;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 35px auto;
            line-height: 1.6;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 60px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: white;
            padding: 15px 30px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: var(--shadow);
            border: 1px solid var(--primary);
        }

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

        .btn-secondary {
            background-color: white;
            color: var(--dark);
            padding: 15px 30px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            background-color: #F9FAFB;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* 数据指标卡片 (首屏下部无图区域) */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .stat-card {
            background: white;
            padding: 25px 20px;
            border-radius: 12px;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 通用区块样式 */
        section {
            padding: 90px 0;
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
        }

        section.alt-bg {
            background-color: var(--bg-light);
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-tag {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 10px;
            display: inline-block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 24px;
            color: var(--dark);
            margin-bottom: 20px;
            font-weight: 700;
        }

        .about-content p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 15px;
            line-height: 1.8;
        }

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

        .about-feat-item {
            background-color: var(--bg-light);
            padding: 15px;
            border-radius: 8px;
            border-left: 4px solid var(--primary);
        }

        .about-feat-item h4 {
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 5px;
        }

        .about-feat-item p {
            font-size: 13px;
            margin-bottom: 0;
        }

        /* 全平台 AIGC 服务体系 */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

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

        .service-icon {
            width: 50px;
            height: 50px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-item {
            font-size: 11px;
            background-color: var(--bg-light);
            color: var(--primary-hover);
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 500;
        }

        /* 平台支持徽章墙 */
        .platform-wall {
            margin-top: 50px;
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            text-align: center;
        }

        .platform-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

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

        .plat-tag {
            background-color: var(--bg-light);
            border: 1px solid rgba(16,185,129,0.15);
            padding: 6px 14px;
            border-radius: 5px;
            font-size: 13px;
            font-weight: 500;
            color: var(--dark);
            transition: var(--transition);
        }

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

        /* 流程步骤 & 标准化全流程 */
        .timeline {
            position: relative;
            max-width: 1000px;
            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-item {
            padding: 10px 40px;
            position: relative;
            background-color: inherit;
            width: 50%;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            width: 16px;
            height: 16px;
            right: -8px;
            background-color: var(--bg-white);
            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: -8px;
        }

        .timeline-content {
            padding: 20px 30px;
            background-color: var(--bg-white);
            position: relative;
            border-radius: 10px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
        }

        .timeline-step {
            display: inline-block;
            background-color: var(--primary);
            color: white;
            font-size: 11px;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 3px;
            margin-bottom: 10px;
        }

        .timeline-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .timeline-content p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 全行业解决方案 & 服务网络 */
        .solutions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .solution-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
        }

        .solution-body {
            padding: 30px;
        }

        .solution-body h3 {
            font-size: 20px;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .solution-body p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .solution-list {
            list-style: none;
            margin-bottom: 25px;
        }

        .solution-list li {
            font-size: 14px;
            color: var(--text-main);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .solution-list li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 900;
        }

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

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

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

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

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

        .case-body {
            padding: 20px;
        }

        .case-badge {
            font-size: 11px;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 10px;
        }

        .case-body h3 {
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 8px;
            font-weight: 700;
        }

        .case-body p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 对比评测 */
        .review-score-box {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 40px;
            text-align: center;
            margin-bottom: 40px;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
        }

        .score-num {
            font-size: 64px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 10px;
        }

        .score-stars {
            color: #FFB000;
            font-size: 24px;
            margin-bottom: 15px;
        }

        .score-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 5px;
        }

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

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

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

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

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

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

        /* Token 比价 */
        .token-price-box {
            background-color: var(--bg-white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 30px;
        }

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

        .train-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            transition: var(--transition);
        }

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

        .train-badge {
            background-color: #E0F2FE;
            color: #0284C7;
            font-size: 11px;
            padding: 4px 8px;
            border-radius: 4px;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 15px;
        }

        .train-card h3 {
            font-size: 18px;
            color: var(--dark);
            margin-bottom: 10px;
            font-weight: 700;
        }

        .train-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .train-features {
            border-top: 1px solid var(--border-color);
            padding-top: 15px;
            font-size: 12px;
            color: var(--text-main);
        }

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

        .comment-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary-hover);
        }

        .user-meta h4 {
            font-size: 14px;
            color: var(--dark);
            font-weight: 700;
        }

        .user-meta span {
            font-size: 11px;
            color: var(--text-muted);
        }

        .comment-text {
            font-size: 13px;
            color: var(--text-main);
            line-height: 1.6;
        }

        /* 帮助中心 & FAQ & 自助排查 */
        .faq-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-trigger {
            width: 100%;
            padding: 18px 24px;
            text-align: left;
            background: none;
            border: none;
            font-size: 15px;
            font-weight: 600;
            color: var(--dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .faq-trigger::after {
            content: '+';
            font-size: 20px;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-trigger::after {
            content: '-';
            transform: rotate(180deg);
        }

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

        .faq-panel-content {
            padding: 0 24px 20px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 术语百科与排查 */
        .troubleshooting {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
        }

        .trouble-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 15px;
            border-bottom: 2px solid var(--primary-light);
            padding-bottom: 8px;
        }

        .trouble-list {
            list-style: none;
            font-size: 13px;
        }

        .trouble-list li {
            margin-bottom: 12px;
        }

        .trouble-list strong {
            color: var(--dark);
            display: block;
        }

        .trouble-list span {
            color: var(--text-muted);
        }

        /* 行业资讯 & 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .news-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

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

        .news-body {
            padding: 25px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-body h3 {
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 12px;
            font-weight: 700;
            line-height: 1.4;
        }

        .news-body p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .news-link {
            font-size: 13px;
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

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

        /* 智能匹配与联系表单 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

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

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

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            color: var(--text-main);
            background-color: var(--bg-light);
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: white;
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
        }

        .btn-submit {
            width: 100%;
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 14px;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

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

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

        .contact-item {
            display: flex;
            gap: 15px;
        }

        .contact-icon {
            width: 44px;
            height: 44px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            flex-shrink: 0;
        }

        .contact-text h4 {
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 5px;
            font-weight: 700;
        }

        .contact-text p {
            font-size: 14px;
            color: var(--text-muted);
        }

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

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

        .qrcode-item img {
            width: 100px;
            height: 100px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 4px;
            background: white;
            margin-bottom: 5px;
        }

        .qrcode-item p {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 友情链接与页脚 */
        footer {
            background-color: var(--dark);
            color: #D1D5DB;
            padding: 60px 0 30px 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 50px;
            border-bottom: 1px solid #1E293B;
            padding-bottom: 40px;
            margin-bottom: 30px;
        }

        .footer-brand h3 {
            color: white;
            font-size: 20px;
            margin-bottom: 15px;
        }

        .footer-brand p {
            color: #9CA3AF;
            margin-bottom: 20px;
            max-width: 500px;
        }

        .footer-links-wrap h4 {
            color: white;
            font-size: 15px;
            margin-bottom: 15px;
        }

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

        .footer-links a {
            color: #9CA3AF;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #9CA3AF;
            font-size: 13px;
        }

        .ai-page-home-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
        }

        /* 侧边悬浮客服 */
        .float-bar {
            position: fixed;
            right: 20px;
            bottom: 40px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 999;
        }

        .float-item {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
            transition: var(--transition);
            text-decoration: none;
            position: relative;
        }

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

        .float-tooltip {
            position: absolute;
            right: 60px;
            background-color: white;
            color: var(--dark);
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 12px;
            white-space: nowrap;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
        }

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

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-3, .cases-grid, .training-grid, .comments-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            nav {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: white;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 4px 6px rgba(0,0,0,0.05);
            }
            nav.active {
                display: flex;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-stats {
                grid-template-columns: 1fr;
            }
            .about-grid, .solutions-grid, .contact-grid, .footer-grid, .faq-layout {
                grid-template-columns: 1fr;
            }
            .grid-3, .cases-grid, .training-grid, .comments-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-item::after {
                left: 23px;
            }
            .right-timeline {
                left: 0%;
            }
        }