/* 样式设计：炫彩荧光风（浅色背景底色） */
        :root {
            --bg-primary: #f8fafc;
            --bg-secondary: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #64748b;
            
            /* 荧光炫彩点缀 */
            --neon-green: #10b981; 
            --neon-purple: #8b5cf6;
            --neon-blue: #06b6d4;
            --neon-pink: #ec4899;
            
            --neon-gradient: linear-gradient(135deg, #10b981, #06b6d4, #8b5cf6, #ec4899);
            --neon-shadow: 0 8px 30px rgba(16, 185, 129, 0.15);
            --border-neon: 1px solid rgba(139, 92, 246, 0.2);
            --border-radius: 12px;
            --container-width: 1200px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        /* 全局容器居中 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

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

        .section-header h2 {
            font-size: 2.2rem;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--neon-gradient);
            border-radius: 2px;
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 15px auto 0;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-neon {
            background: var(--neon-gradient);
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
        }

        .btn-neon:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
        }

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

        .btn-outline:hover {
            background: var(--text-primary);
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* 导航栏 */
        header {
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
        }

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

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

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .nav-links a:hover {
            color: var(--neon-purple);
        }

        .nav-btn {
            background: var(--neon-gradient);
            color: white;
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
        }

        .nav-btn:hover {
            transform: scale(1.05);
        }

        .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-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* 首屏 Hero */
        .hero {
            padding: 100px 0 80px;
            background: radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.05) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
            text-align: center;
            border-bottom: 1px solid rgba(0, 0, 0, 0.03);
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(16, 185, 129, 0.1);
            color: var(--neon-green);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 25px;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 20px;
            font-weight: 800;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: var(--text-secondary);
            max-width: 800px;
            margin: 0 auto 35px;
        }

        .hero-cta {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 50px;
        }

        /* 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-secondary);
            padding: 30px 20px;
            border-radius: var(--border-radius);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
            border: var(--border-neon);
            transition: var(--transition);
        }

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

        .stat-value {
            font-size: 2.5rem;
            font-weight: 800;
            background: var(--neon-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* 通用 Section */
        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.03);
        }

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

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

        .about-content p {
            color: var(--text-secondary);
            margin-bottom: 20px;
            font-size: 1.05rem;
        }

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

        .about-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .about-feature-item svg {
            width: 24px;
            height: 24px;
            fill: var(--neon-green);
            flex-shrink: 0;
        }

        .about-feature-item div h4 {
            font-size: 1rem;
            margin-bottom: 5px;
        }

        .about-feature-item div p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        .about-visual {
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.05), rgba(6, 182, 212, 0.05));
            border-radius: var(--border-radius);
            padding: 40px;
            border: var(--border-neon);
            position: relative;
        }

        .about-visual::before {
            content: '';
            position: absolute;
            top: -10px;
            left: -10px;
            width: 40px;
            height: 40px;
            border-top: 4px solid var(--neon-green);
            border-left: 4px solid var(--neon-green);
        }

        .about-visual::after {
            content: '';
            position: absolute;
            bottom: -10px;
            right: -10px;
            width: 40px;
            height: 40px;
            border-bottom: 4px solid var(--neon-purple);
            border-right: 4px solid var(--neon-purple);
        }

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

        .service-card {
            background-color: var(--bg-secondary);
            padding: 40px 30px;
            border-radius: var(--border-radius);
            border: 1px solid rgba(0, 0, 0, 0.05);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
            border-color: var(--neon-blue);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: rgba(6, 182, 212, 0.1);
            color: var(--neon-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            font-size: 1.5rem;
        }

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

        .service-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

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

        .tag-cloud span {
            background-color: var(--bg-primary);
            color: var(--text-muted);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            border: 1px solid rgba(0,0,0,0.05);
        }

        /* 制作流程 & 标准化流程 */
        .flow-timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }

        .flow-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 2px;
            background: linear-gradient(to bottom, var(--neon-green), var(--neon-blue), var(--neon-purple));
            transform: translateX(-50%);
        }

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

        .timeline-item::after {
            content: '';
            position: absolute;
            top: 25px;
            right: -8px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background-color: var(--bg-secondary);
            border: 4px solid var(--neon-blue);
            z-index: 1;
        }

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

        .timeline-item:nth-child(even)::after {
            left: -8px;
        }

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

        .timeline-content {
            background-color: var(--bg-secondary);
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.02);
            border: var(--border-neon);
        }

        .timeline-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--neon-purple);
            margin-bottom: 10px;
        }

        /* 解决方案 */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: var(--bg-secondary);
            border-radius: var(--border-radius);
            overflow: hidden;
            border: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .solution-card:hover {
            box-shadow: 0 15px 35px rgba(0,0,0,0.05);
            border-color: var(--neon-purple);
        }

        .solution-header-img {
            height: 180px;
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(139, 92, 246, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
        }

        .solution-body {
            padding: 30px;
        }

        .solution-body h3 {
            font-size: 1.4rem;
            margin-bottom: 12px;
        }

        .solution-body p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        .solution-features {
            list-style: none;
        }

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

        .solution-features li::before {
            content: '✓';
            color: var(--neon-green);
            font-weight: bold;
        }

        /* 对比评测表格 */
        .evaluation-table-wrapper {
            width: 100%;
            overflow-x: auto;
            border-radius: var(--border-radius);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
            border: 1px solid rgba(0, 0, 0, 0.05);
            background-color: var(--bg-secondary);
        }

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

        .evaluation-table th, .evaluation-table td {
            padding: 18px 24px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .evaluation-table th {
            background-color: rgba(0, 0, 0, 0.02);
            font-weight: 700;
            color: var(--text-primary);
        }

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

        .evaluation-table td.highlight-column {
            background-color: rgba(16, 185, 129, 0.03);
            font-weight: 600;
        }

        .badge-score {
            display: inline-block;
            background: linear-gradient(135deg, #10b981, #06b6d4);
            color: white;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.85rem;
        }

        /* Token 比价 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .price-card {
            background-color: var(--bg-secondary);
            border-radius: var(--border-radius);
            padding: 30px;
            border: 1px solid rgba(0,0,0,0.05);
            text-align: center;
            position: relative;
            overflow: hidden;
            transition: var(--transition);
        }

        .price-card.popular {
            border: 2px solid var(--neon-purple);
            box-shadow: var(--neon-shadow);
        }

        .price-card.popular::before {
            content: '最佳推荐';
            position: absolute;
            top: 15px;
            right: -30px;
            background: var(--neon-purple);
            color: white;
            padding: 4px 30px;
            font-size: 0.75rem;
            font-weight: 600;
            transform: rotate(45deg);
        }

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

        .price-header h3 {
            font-size: 1.4rem;
            margin-bottom: 10px;
        }

        .price-amount {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 20px 0;
        }

        .price-amount span {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: normal;
        }

        .price-features {
            list-style: none;
            margin-bottom: 30px;
            text-align: left;
        }

        .price-features li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(0,0,0,0.03);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

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

        .case-card {
            background-color: var(--bg-secondary);
            border-radius: var(--border-radius);
            overflow: hidden;
            border: 1px solid rgba(0,0,0,0.05);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
        }

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

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

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

        .case-tag {
            position: absolute;
            top: 15px;
            left: 15px;
            background-color: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .case-info {
            padding: 24px;
        }

        .case-info h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
        }

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

        /* 培训版块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .training-card {
            background-color: var(--bg-secondary);
            padding: 40px;
            border-radius: var(--border-radius);
            border: var(--border-neon);
            position: relative;
        }

        .training-badge {
            background-color: rgba(139, 92, 246, 0.1);
            color: var(--neon-purple);
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 20px;
        }

        .training-card h3 {
            font-size: 1.6rem;
            margin-bottom: 15px;
        }

        .training-list {
            list-style: none;
            margin-bottom: 30px;
        }

        .training-list li {
            padding: 10px 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1rem;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(0,0,0,0.03);
        }

        .training-list li::before {
            content: '●';
            color: var(--neon-blue);
            font-size: 0.8rem;
        }

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

        .review-card {
            background-color: var(--bg-secondary);
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
            border: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

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

        .review-author {
            display: flex;
            align-items: center;
            gap: 15px;
        }

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

        .author-info h4 {
            font-size: 0.95rem;
            margin-bottom: 2px;
        }

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

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--bg-secondary);
            border-radius: 8px;
            margin-bottom: 15px;
            border: 1px solid rgba(0,0,0,0.05);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-header {
            padding: 20px 24px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

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

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

        .faq-content {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-content {
            padding: 0 24px 20px;
        }

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

        .news-card {
            background-color: var(--bg-secondary);
            border-radius: var(--border-radius);
            padding: 30px;
            border: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }

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

        .news-card h3 {
            font-size: 1.15rem;
            margin-bottom: 15px;
            line-height: 1.4;
        }

        .news-link {
            color: var(--neon-purple);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-link:hover {
            text-decoration: underline;
        }

        /* 联系与表单 */
        .contact-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .contact-info h3 {
            font-size: 1.8rem;
            margin-bottom: 25px;
        }

        .contact-details {
            margin-bottom: 40px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
            font-size: 1.05rem;
        }

        .contact-item svg {
            width: 24px;
            height: 24px;
            fill: var(--neon-purple);
        }

        .qrcode-box {
            display: flex;
            gap: 20px;
            align-items: center;
            background-color: var(--bg-secondary);
            padding: 20px;
            border-radius: var(--border-radius);
            border: var(--border-neon);
        }

        .qrcode-box img {
            width: 100px;
            height: 100px;
            object-fit: cover;
            border-radius: 4px;
        }

        .qrcode-text p {
            margin-bottom: 5px;
            font-weight: 600;
        }

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

        .contact-form {
            background-color: var(--bg-secondary);
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
            border: 1px solid rgba(0, 0, 0, 0.05);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid rgba(0,0,0,0.1);
            border-radius: 8px;
            font-size: 1rem;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--neon-purple);
            box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
        }

        /* 友情链接区 */
        .friend-links {
            background-color: rgba(0,0,0,0.02);
            padding: 30px 0;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .friend-links-container {
            display: flex;
            flex-wrap: wrap;
            gap: 15px 25px;
            justify-content: center;
            align-items: center;
        }

        .friend-links-title {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .friend-links-container a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .friend-links-container a:hover {
            color: var(--neon-blue);
        }

        /* 页脚 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 50px;
            margin-bottom: 40px;
        }

        .footer-logo-desc h3 {
            color: #ffffff;
            font-size: 1.4rem;
            margin-bottom: 20px;
        }

        .footer-logo-desc p {
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .footer-links h4 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 20px;
            font-weight: 600;
        }

        .footer-links ul {
            list-style: none;
        }

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

        .footer-links ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links ul li a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 30px;
            text-align: center;
            font-size: 0.8rem;
        }

        /* 浮动客服入口 */
        .float-services {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-item {
            width: 55px;
            height: 55px;
            background: var(--bg-secondary);
            border-radius: 50%;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            border: var(--border-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .float-item:hover {
            transform: scale(1.1);
            background: var(--neon-gradient);
        }

        .float-item:hover svg {
            fill: #ffffff;
        }

        .float-item svg {
            width: 24px;
            height: 24px;
            fill: var(--text-primary);
            transition: var(--transition);
        }

        .float-qrcode-pop {
            position: absolute;
            right: 70px;
            bottom: 0;
            background-color: var(--bg-secondary);
            padding: 15px;
            border-radius: var(--border-radius);
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            border: var(--border-neon);
            display: none;
            text-align: center;
            width: 140px;
        }

        .float-qrcode-pop img {
            width: 110px;
            height: 110px;
            object-fit: cover;
            margin-bottom: 5px;
        }

        .float-qrcode-pop span {
            font-size: 0.75rem;
            color: var(--text-primary);
            font-weight: 600;
        }

        .float-item:hover .float-qrcode-pop {
            display: block;
        }

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

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-secondary);
                padding: 20px;
                border-bottom: 1px solid rgba(0,0,0,0.05);
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }
            .nav-links.active {
                display: flex;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .about-wrapper, .contact-wrapper, .footer-grid {
                grid-template-columns: 1fr;
            }
            .service-grid, .case-grid, .review-grid, .news-grid, .price-grid {
                grid-template-columns: 1fr;
            }
            .flow-timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
                text-align: left !important;
            }
            .timeline-item::after {
                left: 12px;
                right: auto;
            }
            .float-services {
                bottom: 20px;
                right: 20px;
            }
            .solution-grid {
                grid-template-columns: 1fr;
            }
        }