/* 变量定义：鲜绿夺目风 */
        :root {
            --primary: #10B981;       /* 鲜绿 */
            --primary-hover: #059669; /* 深绿 */
            --primary-light: #F0FDF4; /* 极浅绿背景 */
            --primary-border: #A7F3D0;/* 浅绿边框 */
            --dark: #064E3B;          /* 暗绿（主文字/标题） */
            --text-main: #1F2937;     /* 深灰 */
            --text-muted: #4B5563;    /* 灰 */
            --bg-light: #F9FAFB;      /* 全局背景 */
            --bg-card: #FFFFFF;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --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);
        }

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

        /* 布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px;
        }
        .section-header h2 {
            font-size: 2rem;
            color: var(--dark);
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            background-color: var(--primary);
            margin: 8px auto 0;
            border-radius: 2px;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* 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: 2px solid transparent;
            font-size: 1rem;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #ffffff !important;
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            border-color: var(--primary);
            color: var(--primary) !important;
            background-color: transparent;
        }
        .btn-outline:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* 顶部导航 */
        .header-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .header-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo-wrapper {
            display: flex;
            align-items: center;
        }
        .ai-page-logo {
            height: 40px;
            width: auto;
        }
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 20px;
        }
        .nav-link {
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 12px;
            border-radius: 6px;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--dark);
        }

        /* Hero首屏：必须无图，高科技感纯文本/CSS渐变设计 */
        .hero-section {
            padding-top: 140px;
            padding-bottom: 90px;
            background: radial-gradient(circle at 10% 20%, rgba(240, 253, 244, 1) 0%, rgba(255, 255, 255, 1) 90%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: linear-gradient(rgba(16, 185, 129, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(16, 185, 129, 0.03) 1px, transparent 1px);
            background-size: 20px 20px;
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-block;
            background-color: var(--primary-light);
            border: 1px solid var(--primary-border);
            color: var(--primary-hover);
            padding: 6px 16px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.875rem;
            margin-bottom: 24px;
            animation: fadeInDown 0.8s ease;
        }
        .hero-title h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 24px;
            font-weight: 800;
            animation: fadeInUp 0.8s ease;
        }
        .hero-title span {
            color: var(--primary);
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 36px;
            line-height: 1.8;
            max-width: 750px;
            margin-left: auto;
            margin-right: auto;
            animation: fadeInUp 1s ease;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            animation: fadeInUp 1.2s ease;
        }

        /* 数据指标卡片 */
        .stats-section {
            background-color: #ffffff;
            border-top: 1px solid #E5E7EB;
            border-bottom: 1px solid #E5E7EB;
            padding: 40px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-card h3 {
            font-size: 2.5rem;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 4px;
        }
        .stat-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 关于我们与平台介绍 */
        .about-section {
            background-color: var(--bg-light);
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.75rem;
            color: var(--dark);
            margin-bottom: 16px;
        }
        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1.05rem;
        }
        .feature-bullets {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .feature-bullets li {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-main);
            font-weight: 500;
        }
        .feature-bullets li::before {
            content: '✓';
            color: var(--primary);
            font-weight: bold;
        }
        .about-highlight-card {
            background-color: var(--primary-light);
            border: 2px dashed var(--primary-border);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
        }
        .about-highlight-card h4 {
            color: var(--dark);
            font-size: 1.25rem;
            margin-bottom: 12px;
        }
        .about-highlight-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        /* 全平台AIGC服务与一站式制作 */
        .services-section {
            background-color: #ffffff;
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            border: 1px solid #F3F4F6;
            border-radius: 12px;
            padding: 30px;
            background-color: var(--bg-card);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-border);
        }
        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 10px;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        .service-card h3 {
            font-size: 1.25rem;
            color: var(--dark);
            margin-bottom: 12px;
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 支持平台标签云 */
        .platform-section {
            background-color: var(--primary-light);
            padding: 60px 0;
            text-align: center;
        }
        .platform-section h3 {
            color: var(--dark);
            margin-bottom: 30px;
            font-size: 1.5rem;
        }
        .platform-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .platform-tag {
            background-color: #ffffff;
            border: 1px solid var(--primary-border);
            color: var(--text-main);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .platform-tag:hover {
            background-color: var(--primary);
            color: #ffffff;
            transform: scale(1.05);
        }

        /* 解决方案 & 全国网络 */
        .solutions-section {
            background-color: var(--bg-light);
        }
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .solution-card {
            background-color: #ffffff;
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow-sm);
        }
        .solution-card h3 {
            font-size: 1.35rem;
            color: var(--dark);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .solution-card h3::before {
            content: '●';
            color: var(--primary);
        }
        .solution-card p {
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .solution-list {
            list-style: none;
        }
        .solution-list li {
            padding: 8px 0;
            border-bottom: 1px dashed #F3F4F6;
            color: var(--text-main);
            font-size: 0.95rem;
        }
        .solution-list li:last-child {
            border-bottom: none;
        }

        /* 标准化流程 & 技术标准 */
        .process-section {
            background-color: #ffffff;
        }
        .process-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            margin-top: 40px;
        }
        .process-step {
            position: relative;
            padding: 24px;
            background-color: var(--bg-light);
            border-radius: 12px;
            border-top: 4px solid var(--primary);
        }
        .step-num {
            position: absolute;
            top: -20px;
            left: 24px;
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1rem;
        }
        .process-step h3 {
            margin-top: 10px;
            font-size: 1.15rem;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .process-step p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 案例中心：包含指定的高质量横方图及宣传图 */
        .cases-section {
            background-color: var(--bg-light);
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .case-card {
            background-color: #ffffff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .case-img-wrapper {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
            background-color: #E5E7EB;
        }
        .case-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-content {
            padding: 20px;
        }
        .case-tag {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            padding: 2px 8px;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 4px;
            margin-bottom: 10px;
        }
        .case-content h3 {
            font-size: 1.15rem;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .case-content p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 对比评测板块：指定评分与星级 */
        .evaluation-section {
            background-color: #ffffff;
        }
        .evaluation-table-wrapper {
            overflow-x: auto;
            margin-top: 30px;
            border: 1px solid #E5E7EB;
            border-radius: 12px;
        }
        .evaluation-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }
        .evaluation-table th, .evaluation-table td {
            padding: 16px 20px;
            border-bottom: 1px solid #E5E7EB;
        }
        .evaluation-table th {
            background-color: var(--primary-light);
            color: var(--dark);
            font-weight: 700;
        }
        .evaluation-table tr:last-child td {
            border-bottom: none;
        }
        .badge-star {
            color: #F59E0B; /* 橙黄 */
            font-weight: bold;
        }
        .highlight-col {
            background-color: rgba(16, 185, 129, 0.05);
            font-weight: bold;
            color: var(--dark);
        }

        /* Token 比价看板 */
        .token-section {
            background-color: var(--bg-light);
        }
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .token-card {
            background-color: #ffffff;
            border-radius: 12px;
            padding: 24px;
            border: 1px solid #E5E7EB;
            text-align: center;
        }
        .token-card.best {
            border-color: var(--primary);
            position: relative;
        }
        .token-card.best::before {
            content: '推荐使用';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary);
            color: #ffffff;
            padding: 2px 10px;
            font-size: 0.75rem;
            border-radius: 10px;
            font-weight: 600;
        }
        .token-price {
            font-size: 1.75rem;
            color: var(--primary-hover);
            margin: 15px 0;
            font-weight: bold;
        }

        /* 培训认证板块 */
        .training-section {
            background-color: #ffffff;
        }
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .training-card {
            background-color: var(--bg-light);
            border-radius: 12px;
            padding: 24px;
            border: 1px solid #E5E7EB;
            transition: var(--transition);
        }
        .training-card:hover {
            border-color: var(--primary-border);
            background-color: #ffffff;
            box-shadow: var(--shadow-md);
        }
        .training-card h3 {
            font-size: 1.15rem;
            color: var(--dark);
            margin-bottom: 12px;
        }
        .training-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }
        .training-meta {
            font-size: 0.8rem;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            padding: 4px 8px;
            border-radius: 4px;
            display: inline-block;
        }

        /* 常见问题 FAQ 折叠面板 */
        .faq-section {
            background-color: var(--bg-light);
        }
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background-color: #ffffff;
            border: 1px solid #E5E7EB;
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 24px;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--bg-light);
        }
        .faq-answer-inner {
            padding: 20px 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid #E5E7EB;
        }
        .faq-icon::after {
            content: '+';
            font-size: 1.25rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
        }
        .faq-item.active .faq-icon::after {
            content: '−';
        }

        /* 客户评论卡片 */
        .reviews-section {
            background-color: #ffffff;
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .review-card {
            background-color: var(--bg-light);
            border-radius: 12px;
            padding: 24px;
            border: 1px solid #E5E7EB;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .review-text {
            font-size: 0.95rem;
            color: var(--text-main);
            margin-bottom: 20px;
            font-style: italic;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .user-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--primary-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--dark);
        }
        .user-info h4 {
            font-size: 0.95rem;
            color: var(--dark);
        }
        .user-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 行业资讯 / 知识库 */
        .articles-section {
            background-color: var(--bg-light);
        }
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .article-card {
            background-color: #ffffff;
            border-radius: 8px;
            padding: 16px;
            border: 1px solid #E5E7EB;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }
        .article-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .article-card h3 {
            font-size: 0.95rem;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .article-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
        }

        /* 智能需求匹配与联系表单 */
        .form-section {
            background-color: #ffffff;
        }
        .form-container {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            background-color: var(--bg-light);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid #E5E7EB;
        }
        .form-wrapper h3 {
            font-size: 1.5rem;
            color: var(--dark);
            margin-bottom: 24px;
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-group.full-width {
            grid-column: span 2;
        }
        .form-group label {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-group input, .form-group select, .form-group textarea {
            padding: 10px 14px;
            border: 1px solid #E5E7EB;
            border-radius: 6px;
            font-size: 0.95rem;
            background-color: #ffffff;
            outline: none;
            transition: var(--transition);
        }
        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
        }
        .contact-info-panel {
            background-color: var(--primary-light);
            border: 1px solid var(--primary-border);
            border-radius: 12px;
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .contact-methods {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .contact-method {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .contact-method-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--primary-border);
            color: var(--dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }
        .qr-wrapper {
            margin-top: 20px;
            text-align: center;
            background-color: #ffffff;
            padding: 15px;
            border-radius: 8px;
            border: 1px dashed var(--primary-border);
        }
        .qr-wrapper img {
            width: 120px;
            height: 120px;
            margin-bottom: 8px;
        }
        .qr-wrapper p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 浮动客服 */
        .floating-service {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-lg);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            position: relative;
        }
        .float-btn:hover {
            background-color: var(--primary-hover);
            transform: scale(1.1);
        }
        .float-qr-box {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: #ffffff;
            padding: 12px;
            border-radius: 8px;
            box-shadow: var(--shadow-lg);
            border: 1px solid #E5E7EB;
            display: none;
            width: 140px;
            text-align: center;
        }
        .float-btn:hover .float-qr-box {
            display: block;
        }
        .float-qr-box img {
            width: 100%;
            height: auto;
            border-radius: 4px;
        }
        .float-qr-box p {
            font-size: 0.75rem;
            color: var(--text-main);
            margin-top: 6px;
        }

        /* 系统页脚 & 友情链接 */
        .footer {
            background-color: #064E3B; /* 深暗绿色背景 */
            color: #D1FAE5; /* 浅绿字 */
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            margin-top: 15px;
            color: #A7F3D0;
            font-size: 0.95rem;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 1.1rem;
            margin-bottom: 20px;
            font-weight: 600;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #A7F3D0;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #ffffff;
            padding-left: 4px;
        }
        .friendship-links {
            border-top: 1px solid #047857;
            padding-top: 24px;
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 0.85rem;
        }
        .friendship-links span {
            color: #34D399;
            font-weight: 600;
        }
        .friendship-links a {
            color: #A7F3D0;
        }
        .friendship-links a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            border-top: 1px solid #047857;
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: #A7F3D0;
        }

        /* 动画关键帧 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .stats-grid, .services-grid, .cases-grid, .reviews-grid, .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .articles-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .about-grid, .form-container {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: #ffffff;
                box-shadow: var(--shadow-md);
                padding: 20px;
                gap: 12px;
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .hero-title h1 {
                font-size: 2rem;
            }
            .stats-grid, .services-grid, .cases-grid, .reviews-grid, .token-grid, .training-grid, .process-timeline, .solutions-grid {
                grid-template-columns: 1fr;
            }
            .articles-grid {
                grid-template-columns: 1fr 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }