/* 变量及重置 */
        :root {
            --primary: #10b981; /* 薄荷绿 */
            --primary-hover: #059669;
            --primary-light: #e6fcf5;
            --dark: #0f172a;
            --slate-600: #475569;
            --slate-100: #f1f5f9;
            --bg-light: #fafdfb;
            --white: #ffffff;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.03);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: var(--font);
            color: var(--dark);
            background-color: var(--bg-light);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        /* 通用容器 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        section {
            padding: 80px 0;
            position: relative;
        }

        .section-bg-light {
            background-color: var(--primary-light);
        }

        .section-title-wrap {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 12px;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            font-size: 14px;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 12px;
            text-transform: uppercase;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            margin-top: 12px;
            color: var(--slate-600);
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            font-size: 16px;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 8px;
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
            border: 1px solid transparent;
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
        }

        .btn-secondary {
            background-color: var(--white);
            color: var(--dark);
            border-color: var(--slate-100);
            box-shadow: var(--shadow-sm);
        }

        .btn-secondary:hover {
            background-color: var(--slate-100);
            transform: translateY(-2px);
        }

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: var(--transition);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .ai-page-logo {
            max-height: 40px;
            width: auto;
            object-fit: contain;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: 0.5px;
        }

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

        .nav-links a {
            color: var(--slate-600);
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--dark);
        }

        /* 首屏 Hero - 无图片设计 */
        .hero {
            background: linear-gradient(135deg, #f0fdf4 0%, #e6fcf5 50%, #ffffff 100%);
            padding: 120px 0 100px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, rgba(255,255,255,0) 70%);
            border-radius: 50%;
            z-index: 1;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 850px;
            margin: 0 auto;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background-color: var(--white);
            border: 1px solid rgba(16, 185, 129, 0.3);
            border-radius: 30px;
            color: var(--primary-hover);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }

        .hero-title {
            font-size: 46px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--slate-600);
            line-height: 1.7;
            margin-bottom: 40px;
        }

        .hero-btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        /* 数据指标卡片 */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            border-top: 1px solid rgba(0,0,0,0.06);
            padding-top: 40px;
        }

        .stat-card {
            background-color: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(5px);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid rgba(16, 185, 129, 0.1);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            background-color: var(--white);
            box-shadow: var(--shadow-md);
        }

        .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--slate-600);
            font-weight: 500;
        }

        /* 关于我们与软件介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .about-text p {
            color: var(--slate-600);
            margin-bottom: 20px;
            line-height: 1.8;
        }

        .about-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 30px;
        }

        .about-feat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--dark);
            font-weight: 600;
            font-size: 15px;
        }

        .about-feat-item svg {
            color: var(--primary);
            flex-shrink: 0;
        }

        .about-media {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 4px solid var(--white);
        }

        /* 服务能力卡片 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .service-card {
            background-color: var(--white);
            padding: 32px 24px;
            border-radius: 16px;
            border: 1px solid var(--slate-100);
            transition: var(--transition);
            position: relative;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .service-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 4px;
            background-color: var(--primary);
            transition: var(--transition);
            border-radius: 0 0 16px 16px;
        }

        .service-card:hover::after {
            width: 100%;
        }

        .service-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--slate-600);
            font-size: 14px;
            line-height: 1.6;
        }

        /* 制作流程 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            margin-top: 40px;
        }

        .process-step {
            position: relative;
            background-color: var(--white);
            padding: 32px 24px;
            border-radius: 16px;
            border: 1px solid var(--slate-100);
            z-index: 2;
        }

        .step-num {
            position: absolute;
            top: 20px;
            right: 24px;
            font-size: 48px;
            font-weight: 900;
            color: rgba(16, 185, 129, 0.1);
            line-height: 1;
        }

        .step-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .step-desc {
            color: var(--slate-600);
            font-size: 14px;
            line-height: 1.6;
        }

        /* 解决方案 */
        .solution-tabs-nav {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .tab-btn {
            background-color: var(--white);
            border: 1px solid var(--slate-100);
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 30px;
            cursor: pointer;
            transition: var(--transition);
        }

        .tab-btn.active, .tab-btn:hover {
            background-color: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }

        .solution-content {
            background-color: var(--white);
            border-radius: 20px;
            padding: 40px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--slate-100);
        }

        .solution-pane {
            display: none;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .solution-pane.active {
            display: grid;
        }

        .sol-text h3 {
            font-size: 24px;
            margin-bottom: 16px;
        }

        .sol-list {
            margin-top: 20px;
            list-style: none;
        }

        .sol-list li {
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--slate-600);
        }

        .sol-list svg {
            color: var(--primary);
            margin-top: 4px;
            flex-shrink: 0;
        }

        .sol-media {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        /* 全国服务网络 & 交付流程 */
        .net-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 48px;
            align-items: center;
        }

        .timeline {
            position: relative;
            padding-left: 32px;
            border-left: 2px solid var(--primary-light);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 32px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -41px;
            top: 4px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background-color: var(--primary);
            border: 4px solid var(--white);
            box-shadow: 0 0 0 4px var(--primary-light);
        }

        .timeline-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .timeline-desc {
            font-size: 14px;
            color: var(--slate-600);
        }

        /* 平台与服务对比评测 */
        .table-responsive {
            overflow-x: auto;
            background-color: var(--white);
            border-radius: 16px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--slate-100);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

        .comparison-table th, .comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--slate-100);
        }

        .comparison-table th {
            background-color: var(--primary-light);
            color: var(--primary-hover);
            font-weight: 700;
        }

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

        .comparison-table td strong {
            color: var(--primary-hover);
        }

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

        .score-box {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            background-color: var(--primary-light);
            border-radius: 12px;
            padding: 24px;
            margin-top: 32px;
            border: 1px dashed var(--primary);
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .score-val {
            font-size: 36px;
            font-weight: 900;
            color: var(--primary-hover);
        }

        /* 标签云与Token比价 */
        .token-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 24px;
        }

        .model-tag {
            padding: 6px 14px;
            background-color: var(--white);
            border: 1px solid var(--slate-100);
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            color: var(--slate-600);
            transition: var(--transition);
        }

        .model-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
            transform: translateY(-1px);
        }

        /* 培训板块 */
        .train-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .train-card {
            background-color: var(--white);
            border: 1px solid var(--slate-100);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            transition: var(--transition);
        }

        .train-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .train-icon {
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .train-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .train-card p {
            font-size: 13px;
            color: var(--slate-600);
        }

        /* 客户案例 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .case-card {
            background-color: var(--white);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--slate-100);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .case-img-wrap {
            height: 200px;
            overflow: hidden;
            background-color: var(--slate-100);
        }

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

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

        .case-info {
            padding: 24px;
        }

        .case-info h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .case-info p {
            font-size: 14px;
            color: var(--slate-600);
            line-height: 1.6;
        }

        /* 智能匹配表单 */
        .form-wrap {
            max-width: 700px;
            margin: 0 auto;
            background-color: var(--white);
            padding: 40px;
            border-radius: 20px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--slate-100);
        }

        .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 {
            grid-column: span 2;
        }

        .form-group label {
            font-size: 14px;
            font-weight: 600;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--slate-100);
            background-color: var(--bg-light);
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            background-color: var(--white);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
        }

        /* 自助排查与术语百科 */
        .debug-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .debug-box, .wiki-box {
            background-color: var(--white);
            border: 1px solid var(--slate-100);
            border-radius: 16px;
            padding: 32px;
            box-shadow: var(--shadow-sm);
        }

        .debug-box h3, .wiki-box h3 {
            font-size: 20px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .debug-list, .wiki-list {
            list-style: none;
        }

        .debug-list li {
            margin-bottom: 16px;
            border-bottom: 1px solid var(--slate-100);
            padding-bottom: 16px;
        }

        .debug-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .debug-q {
            font-weight: 600;
            margin-bottom: 4px;
        }

        .debug-a {
            font-size: 14px;
            color: var(--slate-600);
        }

        .wiki-item {
            margin-bottom: 16px;
        }

        .wiki-word {
            display: inline-block;
            font-weight: 700;
            color: var(--primary-hover);
            margin-right: 8px;
        }

        /* FAQ折叠面板 */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--white);
            border: 1px solid var(--slate-100);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-header {
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            background-color: var(--white);
            user-select: none;
        }

        .faq-header:hover {
            background-color: var(--primary-light);
        }

        .faq-icon {
            font-size: 18px;
            transition: var(--transition);
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--bg-light);
        }

        .faq-content {
            padding: 20px 24px;
            color: var(--slate-600);
            font-size: 14px;
            line-height: 1.6;
            border-top: 1px solid var(--slate-100);
        }

        .faq-item.active .faq-body {
            max-height: 500px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background-color: var(--white);
            padding: 32px 24px;
            border-radius: 16px;
            border: 1px solid var(--slate-100);
            box-shadow: var(--shadow-sm);
        }

        .review-stars {
            color: #fbbf24;
            margin-bottom: 12px;
        }

        .review-text {
            font-size: 14px;
            color: var(--slate-600);
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .user-meta h4 {
            font-size: 14px;
            font-weight: 700;
        }

        .user-meta p {
            font-size: 12px;
            color: var(--slate-600);
        }

        /* 知识库与最新文章 */
        .blog-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .blog-list {
            list-style: none;
        }

        .blog-item {
            margin-bottom: 16px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--slate-100);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .blog-item:last-child {
            border-bottom: none;
        }

        .blog-link {
            font-weight: 600;
            color: var(--dark);
            text-decoration: none;
            transition: var(--transition);
        }

        .blog-link:hover {
            color: var(--primary);
        }

        .blog-date {
            font-size: 13px;
            color: var(--slate-600);
        }

        /* 联系我们 & 二维码 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
        }

        .contact-info-wrap {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .contact-card {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background-color: var(--white);
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--slate-100);
        }

        .contact-icon {
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .contact-details h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .contact-details p {
            font-size: 14px;
            color: var(--slate-600);
        }

        .qr-codes {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            background-color: var(--white);
            padding: 32px;
            border-radius: 16px;
            border: 1px solid var(--slate-100);
            text-align: center;
        }

        .qr-item img {
            width: 100px;
            height: 100px;
            object-fit: cover;
            border-radius: 8px;
            border: 1px solid var(--slate-100);
            margin-bottom: 8px;
        }

        .qr-item p {
            font-size: 12px;
            color: var(--slate-600);
            font-weight: 600;
        }

        /* 友情链接与页脚 */
        footer {
            background-color: var(--dark);
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 48px;
            border-bottom: 1px solid #1e293b;
            padding-bottom: 40px;
            margin-bottom: 30px;
        }

        .footer-info h3 {
            color: var(--white);
            font-size: 20px;
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .footer-links a:hover {
            color: var(--primary);
        }

        .friend-links-wrap {
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid #1e293b;
        }

        .friend-links-wrap h4 {
            color: var(--white);
            margin-bottom: 12px;
            font-size: 14px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .friend-links a {
            color: #64748b;
            text-decoration: none;
            transition: var(--transition);
        }

        .friend-links a:hover {
            color: var(--primary);
        }

        .copyright-area {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* 浮动组件 */
        .floating-action {
            position: fixed;
            bottom: 30px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            z-index: 999;
        }

        .float-btn {
            width: 48px;
            height: 48px;
            background-color: var(--white);
            border-radius: 50%;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--slate-600);
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--slate-100);
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--primary);
            color: var(--white);
        }

        .float-btn .tooltip {
            position: absolute;
            right: 60px;
            background-color: var(--dark);
            color: var(--white);
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 12px;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
        }

        .float-btn:hover .tooltip {
            opacity: 1;
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: var(--white);
            padding: 16px;
            border-radius: 8px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--slate-100);
            display: none;
            text-align: center;
        }

        .qr-popover img {
            width: 120px;
            height: 120px;
        }

        .float-btn:hover .qr-popover {
            display: block;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .about-grid, .net-grid, .debug-grid, .blog-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .case-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background-color: var(--white);
                flex-direction: column;
                padding: 24px;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--slate-100);
            }
            .nav-links.show {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-stats {
                grid-template-columns: 1fr;
            }
            .solution-pane {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group-full {
                grid-column: span 1;
            }
            .qr-codes {
                grid-template-columns: 1fr;
            }
            .case-grid, .reviews-grid, .process-steps {
                grid-template-columns: 1fr;
            }
        }