/* 变量定义 - 亮紫绚烂风 */
        :root {
            --primary: #8b5cf6;
            --primary-light: #a78bfa;
            --primary-dark: #6d28d9;
            --secondary: #ec4899;
            --accent: #f59e0b;
            --text-main: #1e1b4b;
            --text-muted: #4b5563;
            --bg-main: #faf5ff;
            --bg-card: #ffffff;
            --border-color: #f3e8ff;
            --container-width: 1200px;
        }

        /* 基础重置 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-main);
        }
        body {
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s;
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* 容器布局 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-title-wrap {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-subtitle {
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--secondary);
            font-weight: 700;
            margin-bottom: 10px;
            display: block;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            position: relative;
            display: inline-block;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 2px;
        }

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
        }
        .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;
            background: linear-gradient(90deg, var(--primary-dark), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.3s;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary);
            background-color: var(--border-color);
        }
        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff !important;
            padding: 8px 20px;
            border-radius: 20px;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(139, 92, 246, 0.3);
        }
        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(139, 92, 246, 0.4);
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            border-radius: 2px;
            transition: 0.3s;
        }

        /* Hero首屏 - 无图，高科技感纯文本/数据排版 */
        .hero-section {
            padding-top: 150px;
            padding-bottom: 100px;
            background: radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.15), transparent 40%),
                        radial-gradient(circle at 20% 80%, rgba(139, 92, 246, 0.15), transparent 40%),
                        linear-gradient(180deg, #ffffff, var(--bg-main));
            text-align: center;
            position: relative;
        }
        .hero-badge {
            background-color: rgba(139, 92, 246, 0.1);
            color: var(--primary-dark);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 24px;
            border: 1px solid rgba(139, 92, 246, 0.2);
            animation: pulse 2s infinite;
        }
        h1.hero-title {
            font-size: 40px;
            line-height: 1.3;
            font-weight: 900;
            margin-bottom: 20px;
            color: var(--text-main);
        }
        h1.hero-title span {
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px;
        }
        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 60px;
        }
        .btn {
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 700;
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff;
            box-shadow: 0 10px 20px rgba(139, 92, 246, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(139, 92, 246, 0.4);
        }
        .btn-secondary {
            background-color: #ffffff;
            color: var(--text-main);
            border: 2px solid var(--border-color);
        }
        .btn-secondary:hover {
            background-color: var(--border-color);
            transform: translateY(-3px);
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .stat-card {
            background-color: var(--bg-card);
            border-radius: 16px;
            padding: 24px;
            text-align: center;
            box-shadow: 0 10px 25px -5px rgba(139, 92, 246, 0.05);
            border: 1px solid var(--border-color);
            transition: transform 0.3s;
        }
        .stat-card:hover {
            transform: translateY(-5px);
        }
        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 关于我们与平台介绍 */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .intro-content h3 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 20px;
            color: var(--text-main);
        }
        .intro-text {
            color: var(--text-muted);
            font-size: 16px;
            margin-bottom: 24px;
        }
        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .intro-feat-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .intro-feat-icon {
            color: var(--secondary);
            font-weight: bold;
        }
        .intro-feat-text h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .intro-feat-text p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .intro-media {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(236, 72, 153, 0.1));
            border-radius: 24px;
            padding: 30px;
            border: 1px solid var(--border-color);
            position: relative;
        }
        .intro-box {
            background-color: var(--bg-card);
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 15px 30px -10px rgba(0,0,0,0.05);
        }
        .intro-box h4 {
            margin-bottom: 10px;
            color: var(--primary-dark);
        }

        /* 服务的支持模型标签云 */
        .model-cloud-section {
            background-color: #ffffff;
            padding: 60px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .model-cloud-title {
            text-align: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-muted);
            margin-bottom: 30px;
        }
        .model-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .model-tag {
            background-color: var(--bg-main);
            color: var(--text-main);
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }
        .model-tag:hover {
            background-color: var(--primary);
            color: #ffffff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* 全平台AIGC服务卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            background-color: var(--bg-card);
            border-radius: 20px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 30px -10px rgba(139, 92, 246, 0.05);
            transition: all 0.3s;
        }
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px -15px rgba(139, 92, 246, 0.15);
            border-color: var(--primary-light);
        }
        .service-icon {
            width: 50px;
            height: 50px;
            background-color: rgba(139, 92, 246, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .service-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .service-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .service-link {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* 一站式AIGC制作与场景 */
        .scenarios-section {
            background-color: #ffffff;
        }
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .scenario-card {
            display: flex;
            background-color: var(--bg-main);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .scenario-img-wrap {
            width: 40%;
            min-height: 200px;
            background-size: cover;
            background-position: center;
        }
        .scenario-info {
            width: 60%;
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .scenario-info h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .scenario-info p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        /* 流程步骤与时间线 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }
        .timeline::after {
            content: '';
            position: absolute;
            width: 4px;
            background-color: var(--border-color);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -2px;
        }
        .timeline-item {
            padding: 10px 40px;
            position: relative;
            background-color: inherit;
            width: 50%;
        }
        .timeline-item::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            right: -10px;
            background-color: #ffffff;
            border: 4px solid var(--primary);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }
        .left-timeline {
            left: 0;
        }
        .right-timeline {
            left: 50%;
        }
        .right-timeline::after {
            left: -10px;
        }
        .timeline-content {
            padding: 20px 30px;
            background-color: #ffffff;
            position: relative;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.02);
            border: 1px solid var(--border-color);
        }
        .timeline-step {
            font-size: 12px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 5px;
            display: block;
        }
        .timeline-content h4 {
            font-size: 18px;
            margin-bottom: 8px;
        }
        .timeline-content p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 对比评测表格 */
        .comparison-table-wrap {
            overflow-x: auto;
            background-color: #ffffff;
            border-radius: 20px;
            box-shadow: 0 10px 30px -10px rgba(0,0,0,0.05);
            border: 1px solid var(--border-color);
            margin-top: 30px;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }
        .comparison-table th, .comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }
        .comparison-table th {
            background-color: rgba(139, 92, 246, 0.05);
            font-weight: 700;
            color: var(--text-main);
        }
        .comparison-table tr:last-child td {
            border-bottom: none;
        }
        .highlight-col {
            background-color: rgba(139, 92, 246, 0.02);
            font-weight: 600;
        }
        .text-center {
            text-align: center;
        }
        .rating-badge {
            background-color: rgba(245, 158, 11, 0.1);
            color: var(--accent);
            padding: 4px 10px;
            border-radius: 6px;
            font-weight: 700;
        }

        /* 案例展示区 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .case-card {
            background-color: #ffffff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 25px -5px rgba(0,0,0,0.02);
            transition: all 0.3s;
        }
        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 35px -10px rgba(139, 92, 246, 0.1);
        }
        .case-img-container {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
            background-color: var(--bg-main);
        }
        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-tag {
            position: absolute;
            top: 15px;
            left: 15px;
            background-color: rgba(30, 27, 75, 0.85);
            color: #ffffff;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
        }
        .case-body {
            padding: 24px;
        }
        .case-body h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .case-body p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* Token比价与价格表 */
        .token-pricing {
            background-color: #ffffff;
        }
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .pricing-card {
            border-radius: 20px;
            padding: 40px 30px;
            background-color: var(--bg-main);
            border: 1px solid var(--border-color);
            text-align: center;
            position: relative;
            transition: all 0.3s;
        }
        .pricing-card.featured {
            background-color: #ffffff;
            border: 2px solid var(--primary);
            transform: scale(1.05);
            box-shadow: 0 20px 40px -15px rgba(139, 92, 246, 0.2);
        }
        .pricing-badge {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            color: #ffffff;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 700;
        }
        .price-val {
            font-size: 42px;
            font-weight: 800;
            color: var(--text-main);
            margin: 20px 0;
        }
        .price-val span {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .pricing-features {
            list-style: none;
            margin: 30px 0;
            text-align: left;
            display: inline-block;
        }
        .pricing-features li {
            font-size: 14px;
            margin-bottom: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .pricing-features li::before {
            content: '✓';
            color: var(--primary);
            font-weight: bold;
        }

        /* 培训业务 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }
        .training-card {
            background-color: #ffffff;
            border-radius: 12px;
            padding: 20px;
            border: 1px solid var(--border-color);
            text-align: center;
            box-shadow: 0 4px 10px rgba(0,0,0,0.01);
            transition: all 0.3s;
        }
        .training-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(139, 92, 246, 0.05);
        }
        .training-icon {
            font-size: 28px;
            margin-bottom: 12px;
        }
        .training-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .training-card p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 用户评论区 */
        .reviews-section {
            background-color: #ffffff;
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .review-card {
            background-color: var(--bg-main);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
            position: relative;
        }
        .review-text {
            font-size: 14px;
            color: var(--text-muted);
            font-style: italic;
            margin-bottom: 20px;
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }
        .author-info h5 {
            font-size: 14px;
            font-weight: 700;
        }
        .author-info span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* FAQ 折叠面板 */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background-color: #ffffff;
            border-radius: 10px;
            margin-bottom: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
        }
        .faq-trigger {
            width: 100%;
            text-align: left;
            padding: 20px;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }
        .faq-trigger::after {
            content: '+';
            font-size: 20px;
            color: var(--primary);
            transition: transform 0.3s;
        }
        .faq-item.active .faq-trigger::after {
            content: '−';
        }
        .faq-content {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            font-size: 14px;
            color: var(--text-muted);
        }
        .faq-item.active .faq-content {
            padding: 0 20px 20px 20px;
            max-height: 200px;
        }

        /* 自助排查与术语百科 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .info-box-card {
            background-color: #ffffff;
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
        }
        .info-box-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--primary-dark);
            border-bottom: 2px solid var(--border-color);
            padding-bottom: 8px;
        }
        .troubleshoot-list, .wiki-list {
            list-style: none;
        }
        .troubleshoot-list li, .wiki-list li {
            font-size: 14px;
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .troubleshoot-list li::before {
            content: '●';
            color: var(--secondary);
            font-size: 10px;
            margin-top: 4px;
        }
        .wiki-list li strong {
            color: var(--text-main);
            min-width: 80px;
            display: inline-block;
        }

        /* 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .news-card {
            background-color: #ffffff;
            border-radius: 16px;
            padding: 24px;
            border: 1px solid var(--border-color);
            box-shadow: 0 5px 15px rgba(0,0,0,0.01);
            transition: all 0.3s;
        }
        .news-card:hover {
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }
        .news-card h4 {
            font-size: 16px;
            margin-bottom: 12px;
            font-weight: 700;
        }
        .news-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 15px;
        }
        .news-link {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
        }

        /* 表单与联系我们 */
        .contact-section {
            background-color: #ffffff;
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
        }
        .form-wrap {
            background-color: var(--bg-main);
            border-radius: 20px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }
        .form-title {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--text-main);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid #d1d5db;
            background-color: #ffffff;
            color: var(--text-main);
            font-size: 14px;
            transition: border-color 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
        }
        .contact-info-panel {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .info-card-detail {
            background-color: var(--bg-main);
            border-radius: 16px;
            padding: 24px;
            border: 1px solid var(--border-color);
            margin-bottom: 20px;
        }
        .info-card-detail h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .info-card-detail p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .qr-area {
            display: flex;
            gap: 20px;
            margin-top: 15px;
            flex-wrap: wrap;
        }
        .qr-box {
            text-align: center;
            background: #ffffff;
            padding: 10px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }
        .qr-box img {
            width: 100px;
            height: 100px;
            margin-bottom: 5px;
        }
        .qr-box span {
            font-size: 11px;
            color: var(--text-muted);
            display: block;
        }

        /* 浮动客服 */
        .float-service {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
            cursor: pointer;
            transition: all 0.3s;
            position: relative;
        }
        .float-btn:hover {
            transform: scale(1.1);
        }
        .float-btn .tooltip {
            position: absolute;
            right: 60px;
            background-color: var(--text-main);
            color: #ffffff;
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 12px;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: 0.3s;
        }
        .float-btn:hover .tooltip {
            opacity: 1;
            visibility: visible;
        }
        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 15px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            display: none;
            text-align: center;
        }
        .qr-popover img {
            width: 120px;
            height: 120px;
            margin-bottom: 5px;
        }
        .qr-popover span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 页脚 */
        footer {
            background-color: #111827;
            color: #d1d5db;
            padding: 60px 0 30px;
            border-top: 1px solid #1f2937;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo img {
            height: 40px;
            margin-bottom: 15px;
        }
        .footer-logo p {
            font-size: 14px;
            color: #9ca3af;
        }
        .footer-links h5 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links ul li {
            margin-bottom: 10px;
        }
        .footer-links ul li a {
            color: #9ca3af;
            font-size: 14px;
            transition: color 0.3s;
        }
        .footer-links ul li a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            border-top: 1px solid #1f2937;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: #9ca3af;
        }
        .friendship-links {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }
        .friendship-links a {
            color: #9ca3af;
            font-size: 13px;
        }
        .friendship-links a:hover {
            color: #ffffff;
        }

        /* 动画定义 */
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        /* 移动端响应式适配 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenarios-grid {
                grid-template-columns: 1fr;
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            h1.hero-title {
                font-size: 28px;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: #ffffff;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .intro-grid, .contact-grid, .troubleshoot-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-item::after {
                left: 21px;
            }
            .right-timeline {
                left: 0%;
            }
            .pricing-grid, .reviews-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .pricing-card.featured {
                transform: none;
            }
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
        }