:root {
            --primary: #2563eb;
            --primary-light: #eff6ff;
            --secondary: #0d9488;
            --secondary-light: #f0fdfa;
            --accent: #f59e0b;
            --neutral-dark: #1e293b;
            --neutral-light: #f8fafc;
            --border-color: #e2e8f0;
            --text-muted: #64748b;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* 重置与基本样式 */
        * {
            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(--neutral-dark);
            background-color: var(--neutral-light);
        }
        body {
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* 全局通用布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        section {
            padding: 80px 0;
            background-color: #ffffff;
            border-bottom: 1px solid var(--border-color);
        }
        section.bg-light {
            background-color: var(--neutral-light);
        }

        /* 头部标题与描述 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            color: var(--neutral-dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            margin: 8px auto 0;
            border-radius: 2px;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-weight: 600;
            border-radius: 8px;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            font-size: 1rem;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff !important;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
        }
        .btn-secondary {
            background-color: var(--primary-light);
            color: var(--primary) !important;
            border: 1px solid rgba(37, 99, 235, 0.1);
        }
        .btn-secondary:hover {
            background-color: var(--primary);
            color: #ffffff !important;
        }

        /* 导航栏 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--border-color);
        }
        .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;
        }
        .brand-name {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }
        .nav-links a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--neutral-dark);
            padding: 5px 10px;
            border-radius: 4px;
        }
        .nav-links a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--neutral-dark);
            cursor: pointer;
        }

        /* Hero首屏 - 高亮度鲜活，无图片 */
        .hero {
            background: radial-gradient(circle at 80% 20%, rgba(13, 148, 136, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.08) 0%, transparent 50%),
                        var(--neutral-light);
            padding: 100px 0 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 25px;
            border: 1px solid rgba(37, 99, 235, 0.15);
            animation: pulse 2s infinite;
        }
        .hero h1 {
            font-size: 2.8rem;
            line-height: 1.3;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #1e293b 30%, #2563eb 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 800;
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 35px;
        }
        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        /* 数据指标 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 60px;
        }
        .stat-card {
            background-color: #ffffff;
            padding: 25px;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .stat-val {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }
        .stat-lbl {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        /* 全平台AIGC服务 (模型墙) */
        .model-container {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .model-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .model-tag {
            padding: 8px 16px;
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--neutral-dark);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .model-tag:hover {
            border-color: var(--secondary);
            background-color: var(--secondary-light);
            color: var(--secondary);
            transform: scale(1.05);
        }

        /* 关于我们与平台介绍 */
        .about-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--neutral-dark);
        }
        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1rem;
        }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .about-feat-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .about-feat-icon {
            color: var(--secondary);
            font-size: 1.2rem;
            font-weight: bold;
        }
        .about-feat-desc h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .about-feat-desc p {
            font-size: 0.85rem;
            margin-bottom: 0;
        }

        /* 一站式AIGC制作 (服务能力卡片) */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .service-card {
            background-color: #ffffff;
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-icon {
            width: 50px;
            height: 50px;
            background-color: var(--primary-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 全行业解决方案 */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .solution-card {
            background-color: var(--neutral-light);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition);
        }
        .solution-card:hover {
            background-color: #ffffff;
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .solution-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--neutral-dark);
            margin-bottom: 12px;
        }
        .solution-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }
        .solution-list {
            list-style: none;
            font-size: 0.85rem;
            color: var(--neutral-dark);
        }
        .solution-list li {
            margin-bottom: 8px;
            padding-left: 15px;
            position: relative;
        }
        .solution-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--secondary);
            font-weight: bold;
        }

        /* 标准化AIGC流程 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
            background: #ffffff;
            padding: 25px 20px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }
        .process-num {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 15px;
            font-size: 1.1rem;
        }
        .process-step h4 {
            font-size: 1.1rem;
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 技术标准 */
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .tech-card {
            background-color: var(--neutral-light);
            border-left: 4px solid var(--primary);
            padding: 25px;
            border-radius: 0 12px 12px 0;
        }
        .tech-card h4 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--neutral-dark);
        }
        .tech-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 客户案例中心 - 含横版和方版图片组件 */
        .cases-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 30px;
        }
        .case-main {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .case-image-wrapper {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .case-desc-box {
            padding: 25px;
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
        }
        .case-side {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .case-side-item {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
        }
        .case-side-img {
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 15px;
            border: 1px solid var(--border-color);
        }

        /* 对比评测 - 突出 9.9分 / 满分 10分 */
        .rating-box {
            background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
            border-radius: 16px;
            padding: 40px;
            margin-bottom: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
            border: 1px solid rgba(37, 99, 235, 0.15);
        }
        .rating-left {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .rating-number {
            font-size: 4.5rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
        }
        .rating-stars {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        .stars {
            color: var(--accent);
            font-size: 1.8rem;
        }
        .rating-text {
            font-size: 1.1rem;
            color: var(--neutral-dark);
            font-weight: 600;
        }
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            background-color: #ffffff;
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }
        .compare-table th, .compare-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }
        .compare-table th {
            background-color: var(--neutral-light);
            color: var(--neutral-dark);
            font-weight: 700;
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-table td.highlight {
            background-color: var(--primary-light);
            font-weight: 600;
            color: var(--primary);
        }

        /* Token比价与价格参考 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .token-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            text-align: center;
            transition: var(--transition);
        }
        .token-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .token-card h4 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }
        .token-price {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--secondary);
            margin: 15px 0;
        }
        .token-price span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: normal;
        }

        /* 职业技术培训 & 人工智能培训 */
        .train-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }
        .train-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            transition: var(--transition);
        }
        .train-card:hover {
            border-color: var(--primary);
            background-color: var(--primary-light);
            transform: translateY(-5px);
        }
        .train-card-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--neutral-dark);
            margin-bottom: 10px;
        }
        .train-card-cert {
            display: inline-block;
            padding: 4px 10px;
            background-color: var(--secondary-light);
            color: var(--secondary);
            font-size: 0.8rem;
            border-radius: 4px;
            font-weight: 600;
        }

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .faq-item {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-q {
            padding: 20px;
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
            background-color: #ffffff;
        }
        .faq-q::after {
            content: "+";
            font-size: 1.5rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .faq-item.active .faq-q::after {
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--neutral-light);
        }
        .faq-a-inner {
            padding: 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid var(--border-color);
        }

        /* AI术语百科 */
        .terms-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
        }
        .term-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 15px;
        }
        .term-name {
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }
        .term-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 客户评论卡片 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .comment-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .comment-quote {
            font-size: 2rem;
            color: rgba(37, 99, 235, 0.1);
            position: absolute;
            top: 15px;
            left: 15px;
            line-height: 1;
        }
        .comment-body {
            font-size: 0.95rem;
            color: var(--neutral-dark);
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }
        .comment-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .author-info h4 {
            font-size: 0.9rem;
            margin-bottom: 2px;
        }
        .author-info p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .news-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }
        .news-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .news-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--neutral-dark);
            line-height: 1.4;
        }
        .news-link {
            font-size: 0.9rem;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .news-link:hover {
            color: var(--secondary);
        }

        /* 智能需求匹配 (表单区) */
        .form-section-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: flex-start;
        }
        .form-info h3 {
            font-size: 1.8rem;
            margin-bottom: 15px;
        }
        .form-info p {
            color: var(--text-muted);
            margin-bottom: 25px;
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }
        .contact-icon {
            width: 45px;
            height: 45px;
            background-color: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: bold;
        }
        .form-container {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            box-shadow: var(--shadow-md);
        }
        .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 var(--border-color);
            border-radius: 8px;
            outline: none;
            transition: var(--transition);
            font-family: inherit;
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }
        select.form-control {
            cursor: pointer;
        }
        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        /* 加盟代理 */
        .agent-box {
            background: linear-gradient(135deg, var(--neutral-dark), #0f172a);
            color: #ffffff;
            border-radius: 16px;
            padding: 50px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }
        .agent-content {
            flex: 1 1 500px;
        }
        .agent-content h3 {
            font-size: 2rem;
            margin-bottom: 15px;
            color: #ffffff;
        }
        .agent-content p {
            color: #94a3b8;
            font-size: 1.1rem;
            margin-bottom: 25px;
        }
        .agent-perks {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-bottom: 25px;
        }
        .agent-perk-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
        }
        .agent-perk-item::before {
            content: "✦";
            color: var(--accent);
        }

        /* 友情链接与底部导航 */
        .footer-nav {
            background-color: var(--neutral-dark);
            color: #94a3b8;
            padding: 60px 0 30px;
            border-bottom: 1px solid #334155;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
        }
        .footer-brand h4 {
            color: #ffffff;
            font-size: 1.25rem;
            margin-bottom: 15px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .footer-links h5 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 15px;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links ul li {
            margin-bottom: 10px;
        }
        .footer-links ul li a {
            font-size: 0.9rem;
        }
        .footer-links ul li a:hover {
            color: #ffffff;
        }
        .footer-qr {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
        }
        .footer-qr img {
            width: 100px;
            height: 100px;
            border-radius: 8px;
            border: 4px solid #ffffff;
        }
        .footer-qr span {
            font-size: 0.85rem;
        }

        /* 友情链接区 */
        .friend-links-section {
            background-color: #0f172a;
            color: #64748b;
            padding: 20px 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #1e293b;
        }
        .friend-links-container {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }
        .friend-links-container a {
            color: #94a3b8;
        }
        .friend-links-container a:hover {
            color: #ffffff;
        }

        /* 版权底部 */
        .copyright-bar {
            background-color: #0f172a;
            color: #64748b;
            padding: 25px 0;
            font-size: 0.85rem;
            text-align: center;
        }
        .copyright-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* 悬浮客服 */
        .float-service {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1.2rem;
            position: relative;
        }
        .float-btn:hover {
            transform: scale(1.1);
            background-color: var(--secondary);
        }
        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 12px;
            box-shadow: var(--shadow-lg);
            display: none;
            text-align: center;
            width: 140px;
        }
        .qr-popover img {
            width: 110px;
            height: 110px;
            margin-bottom: 8px;
        }
        .qr-popover p {
            font-size: 0.75rem;
            color: var(--neutral-dark);
            font-weight: 600;
        }
        .float-btn:hover .qr-popover {
            display: block;
        }

        /* 关键帧动画 */
        @keyframes pulse {
            0% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.03); opacity: 0.9; }
            100% { transform: scale(1); opacity: 1; }
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .service-grid { grid-template-columns: repeat(2, 1fr); }
            .solution-grid { grid-template-columns: repeat(2, 1fr); }
            .process-flow { grid-template-columns: repeat(2, 1fr); }
            .tech-grid { grid-template-columns: repeat(2, 1fr); }
            .cases-grid { grid-template-columns: 1fr; }
            .token-grid { grid-template-columns: repeat(2, 1fr); }
            .train-grid { grid-template-columns: repeat(3, 1fr); }
            .comments-grid { grid-template-columns: repeat(2, 1fr); }
            .news-grid { grid-template-columns: repeat(2, 1fr); }
            .about-layout { grid-template-columns: 1fr; }
            .form-section-layout { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            section { padding: 50px 0; }
            .nav-links { display: none; }
            .mobile-menu-btn { display: block; }
            .hero h1 { font-size: 2.1rem; }
            .hero p { font-size: 1rem; }
            .stats-grid { grid-template-columns: 1fr; }
            .service-grid { grid-template-columns: 1fr; }
            .solution-grid { grid-template-columns: 1fr; }
            .process-flow { grid-template-columns: 1fr; }
            .tech-grid { grid-template-columns: 1fr; }
            .token-grid { grid-template-columns: 1fr; }
            .train-grid { grid-template-columns: repeat(2, 1fr); }
            .comments-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .terms-grid { grid-template-columns: repeat(2, 1fr); }
            .rating-box { flex-direction: column; text-align: center; }
            .rating-left { flex-direction: column; }
            .footer-grid { grid-template-columns: 1fr; }
            .copyright-container { flex-direction: column; text-align: center; }
        }