/* 亮紫绚烂风 核心样式变量 */
        :root {
            --primary: #7c3aed; /* 亮紫 */
            --primary-light: #a78bfa;
            --primary-dark: #6d28d9;
            --accent: #db2777; /* 绚烂粉 */
            --gradient-accent: linear-gradient(135deg, #7c3aed 0%, #db2777 100%);
            --gradient-subtle: linear-gradient(135deg, #f5f3ff 0%, #fdf2f8 100%);
            --text-dark: #1e1b4b; /* 深紫黑 */
            --text-muted: #4b5563;
            --bg-light: #ffffff;
            --bg-offset: #fafafa;
            --border-color: #e5e7eb;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --shadow-sm: 0 2px 8px rgba(124, 58, 237, 0.05);
            --shadow-md: 0 8px 24px rgba(124, 58, 237, 0.08);
            --shadow-lg: 0 16px 32px rgba(124, 58, 237, 0.12);
            --container-width: 1200px;
        }

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

        /* 通用容器与排版 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: 80px 0;
            position: relative;
        }
        .section-bg-offset {
            background-color: var(--bg-offset);
        }
        .section-bg-gradient {
            background: var(--gradient-subtle);
        }
        .section-title-wrap {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title-wrap h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-title-wrap p {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 按钮设计 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .btn-primary {
            background: var(--gradient-accent);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
        }
        .btn-primary:hover {
            opacity: 0.95;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(124, 58, 237, 0.5);
            color: #ffffff;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }
        header.scrolled {
            box-shadow: var(--shadow-sm);
            background: rgba(255, 255, 255, 0.95);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .ai-page-logo {
            height: 40px;
            object-fit: contain;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .nav-link {
            color: var(--text-dark);
            font-size: 15px;
            font-weight: 500;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-btn-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--text-dark);
            margin: 5px 0;
            transition: 0.3s;
        }

        /* Hero 区域 (首屏禁止图片) */
        .hero-section {
            padding: 150px 0 100px;
            background: linear-gradient(135deg, #f5f3ff 0%, #fae8ff 50%, #ffffff 100%);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -10%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(124,58,237,0.15) 0%, rgba(219,39,119,0) 70%);
            filter: blur(50px);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 850px;
            margin: 0 auto;
        }
        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(124, 58, 237, 0.08);
            border: 1px solid rgba(124, 58, 237, 0.2);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            border-radius: 50px;
            margin-bottom: 24px;
        }
        .hero-content h1 {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 24px;
            letter-spacing: -1px;
        }
        .hero-content h1 span {
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }
        .hero-btns {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-bottom: 50px;
        }

        /* 数据指标卡片 (Hero 底部) */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.6);
            padding: 20px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all 0.3s ease;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: rgba(124, 58, 237, 0.2);
        }
        .stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 平台介绍 & 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 50px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 24px;
            color: var(--text-dark);
            margin-bottom: 20px;
        }
        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 15px;
            line-height: 1.7;
        }
        .about-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 30px;
        }
        .about-tag-item {
            padding: 8px 16px;
            background: #f3e8ff;
            color: var(--primary-dark);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
        }
        .about-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .about-image-wrap img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .about-image-wrap:hover img {
            transform: scale(1.05);
        }

        /* 全平台 AIGC 服务 (支持平台聚合) */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: var(--radius-lg);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--gradient-accent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-icon {
            width: 48px;
            height: 48px;
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }
        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 16px;
        }
        .model-list-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .model-list-tags span {
            background: var(--bg-offset);
            border: 1px solid var(--border-color);
            padding: 2px 8px;
            font-size: 12px;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
        }

        /* 一站式 AIGC 制作 & 全行业解决方案 */
        .grid-2col {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }
        .solution-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .solution-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .solution-body {
            padding: 30px;
        }
        .solution-body h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .solution-body p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 20px;
        }
        .solution-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        .sol-feature-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-dark);
        }
        .sol-feature-item svg {
            color: var(--primary);
            flex-shrink: 0;
        }

        /* 全国服务网络 & 步骤流程 */
        .process-flow {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-top: 40px;
        }
        .process-flow::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 50px;
            right: 50px;
            height: 2px;
            background: var(--border-color);
            z-index: 1;
        }
        .process-step {
            width: 20%;
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .step-num {
            width: 48px;
            height: 48px;
            background: var(--bg-light);
            border: 3px solid var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            margin: 0 auto 20px;
            transition: all 0.3s ease;
        }
        .process-step:hover .step-num {
            background: var(--primary);
            color: #ffffff;
            transform: scale(1.1);
        }
        .process-step h4 {
            font-size: 16px;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .process-step p {
            font-size: 13px;
            color: var(--text-muted);
            padding: 0 10px;
        }

        /* 技术标准 */
        .standards-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .standard-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-md);
            text-align: center;
        }
        .standard-item h4 {
            font-size: 18px;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .standard-item p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .case-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .case-image {
            height: 240px;
            background-color: var(--bg-offset);
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-info {
            padding: 24px;
        }
        .case-info h4 {
            font-size: 18px;
            margin-bottom: 8px;
        }
        .case-info p {
            color: var(--text-muted);
            font-size: 14px;
        }

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            background: #ffffff;
            box-shadow: var(--shadow-md);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }
        .compare-table th, .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }
        .compare-table th {
            background-color: #f5f3ff;
            color: var(--text-dark);
            font-weight: 700;
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .highlight-col {
            background-color: rgba(124, 58, 237, 0.03);
            font-weight: 600;
        }
        .highlight-text {
            color: var(--primary-dark);
        }
        .rating-wrap {
            background: linear-gradient(135deg, #7c3aed 0%, #db2777 100%);
            color: white;
            padding: 24px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 30px;
        }
        .rating-stars {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 20px;
            color: #fbbf24;
        }

        /* Token 比价参考 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .token-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
        }
        .token-card.highlight {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            position: relative;
        }
        .token-card.highlight::after {
            content: '超低底价';
            position: absolute;
            top: 10px;
            right: 10px;
            background: var(--accent);
            color: white;
            font-size: 10px;
            padding: 2px 6px;
            border-radius: 4px;
        }
        .token-price {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 15px 0;
        }

        /* 培训中心 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }
        .training-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            transition: all 0.3s ease;
        }
        .training-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .training-icon {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .training-card h4 {
            font-size: 15px;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .training-card p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 术语百科 & 排查指南 */
        .wiki-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .wiki-card {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
        }
        .wiki-card h4 {
            font-size: 16px;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }
        .wiki-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* FAQ 折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text-dark);
        }
        .faq-question::after {
            content: '+';
            font-size: 20px;
            color: var(--primary);
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1), padding 0.3s ease;
            color: var(--text-muted);
            font-size: 14px;
            background-color: var(--bg-offset);
        }
        .faq-item.active .faq-answer {
            max-height: 1000px;
            padding: 20px 24px;
        }

        /* 客户评论卡片 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .testimonial-text {
            font-size: 14px;
            color: var(--text-muted);
            font-style: italic;
            margin-bottom: 20px;
            line-height: 1.6;
        }
        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .user-avatar {
            width: 44px;
            height: 44px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: white;
            font-size: 18px;
        }
        .user-info h5 {
            font-size: 15px;
            color: var(--text-dark);
            margin-bottom: 2px;
        }
        .user-info p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 资讯与知识库 */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .article-card h4 {
            font-size: 16px;
            margin-bottom: 10px;
            color: var(--text-dark);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        /* 智能需求匹配与联系我们表单 */
        .contact-section-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }
        .form-wrap {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-lg);
        }
        .form-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 24px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 14px;
            outline: none;
            transition: all 0.3s ease;
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
        }
        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }
        .info-sidebar {
            background: var(--bg-offset);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px;
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .contact-info-item {
            display: flex;
            gap: 15px;
        }
        .contact-info-icon {
            font-size: 20px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .contact-info-text h5 {
            font-size: 16px;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .contact-info-text p {
            font-size: 14px;
            color: var(--text-muted);
        }
        .qrcode-wrap {
            text-align: center;
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
        }
        .qrcode-wrap img {
            width: 140px;
            height: 140px;
            margin: 10px auto;
            border: 1px solid var(--border-color);
            padding: 4px;
            border-radius: var(--radius-sm);
        }

        /* 友情链接与页脚 */
        footer {
            background-color: #0f0720;
            color: #a5b4fc;
            padding: 60px 0 30px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h4 {
            color: #ffffff;
            font-size: 20px;
            margin-bottom: 15px;
        }
        .footer-links h5 {
            color: #ffffff;
            font-size: 16px;
            margin-bottom: 15px;
        }
        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: #a5b4fc;
        }
        .footer-links a:hover {
            color: #ffffff;
        }
        .footer-friend-links {
            border-top: 1px solid rgba(165, 180, 252, 0.1);
            padding-top: 24px;
            margin-top: 24px;
        }
        .footer-friend-links h5 {
            color: #ffffff;
            font-size: 14px;
            margin-bottom: 12px;
        }
        .footer-friend-links-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-friend-links-wrap a {
            color: #818cf8;
            font-size: 13px;
        }
        .footer-friend-links-wrap a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(165, 180, 252, 0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 12px;
            color: #6366f1;
        }

        /* 悬浮工具栏 */
        .floating-service {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .float-btn {
            width: 52px;
            height: 52px;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            cursor: pointer;
            position: relative;
            transition: all 0.3s ease;
        }
        .float-btn:hover {
            background: var(--primary);
            color: #ffffff;
            transform: translateY(-2px);
        }
        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }
        .float-btn-qr {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 10px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            display: none;
            width: 140px;
        }
        .float-btn:hover .float-btn-qr {
            display: block;
        }

        /* 响应式样式适配 */
        @media (max-width: 1024px) {
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid, .testimonial-grid, .article-grid, .wiki-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .about-grid, .contact-section-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: #ffffff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 16px;
                box-shadow: var(--shadow-md);
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .nav-btn-wrap {
                display: none;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .service-grid, .testimonial-grid, .article-grid, .wiki-grid, .case-grid, .grid-2col {
                grid-template-columns: 1fr;
            }
            .process-flow {
                flex-direction: column;
                gap: 30px;
            }
            .process-flow::before {
                display: none;
            }
            .process-step {
                width: 100%;
            }
            .standards-container {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .token-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }