:root {
            --primary: #6366f1;
            --primary-light: #818cf8;
            --secondary: #ec4899;
            --accent: #f43f5e;
            --text-main: #1f2937;
            --text-muted: #4b5563;
            --text-light: #9ca3af;
            --bg-base: #fcfcfd;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --border-color: #e5e7eb;
            --gradient-primary: linear-gradient(135deg, #6366f1, #ec4899);
            --gradient-hover: linear-gradient(135deg, #4f46e5, #db2777);
            --gradient-subtle: linear-gradient(135deg, #e0e7ff, #fce7f3);
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
            --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.03);
            --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.08), 0 10px 10px -5px rgba(0,0,0,0.04);
            --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: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-base);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        /* 统一页面容器 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 统一标题组件 */
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header .tag {
            display: inline-block;
            padding: 6px 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background: var(--gradient-subtle);
            border-radius: 9999px;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .section-header p {
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
            font-size: 16px;
        }

        /* 导航栏 */
        .navbar {
            position: sticky;
            top: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            z-index: 100;
            transition: var(--transition);
        }

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

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

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

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 15px;
            list-style: none;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
        }

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
        }

        .btn-primary:hover {
            background: var(--gradient-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(99, 102, 241, 0.3);
        }

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

        .btn-outline:hover {
            background: var(--gradient-subtle);
            transform: translateY(-2px);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-main);
            margin: 6px 0;
            transition: var(--transition);
        }

        /* 首屏 Hero - 绝无图片，完全依靠精美渐变与排版 */
        .hero {
            position: relative;
            padding: 120px 0 96px;
            background: radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.08), transparent 40%),
                        radial-gradient(circle at 10% 70%, rgba(99, 102, 241, 0.08), transparent 45%);
            overflow: hidden;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 9999px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }

        .hero-badge span {
            color: var(--accent);
            font-weight: bold;
        }

        .hero-title h1 {
            font-size: 48px;
            line-height: 1.2;
            font-weight: 900;
            color: var(--text-dark);
            margin-bottom: 24px;
            letter-spacing: -0.02em;
        }

        .hero-title h1 mark {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 720px;
            margin: 0 auto 40px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-bottom: 60px;
            flex-wrap: wrap;
        }

        /* 数据指标卡片 (放在Hero内作为视觉支撑) */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .stat-value {
            font-size: 36px;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

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

        /* 关于我们 */
        .section-about {
            padding: 96px 0;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .about-content p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .about-bullets {
            list-style: none;
        }

        .about-bullets li {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
            font-weight: 500;
            color: var(--text-main);
        }

        .about-bullets li::before {
            content: "✓";
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--gradient-subtle);
            color: var(--primary);
            font-size: 12px;
            font-weight: bold;
        }

        .about-brand {
            padding: 40px;
            background: var(--gradient-subtle);
            border-radius: 24px;
            border: 1px solid rgba(99,102,241,0.1);
        }

        .brand-box {
            background: #ffffff;
            padding: 32px;
            border-radius: 16px;
            box-shadow: var(--shadow-md);
        }

        .brand-box h4 {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .brand-box p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* 全平台AIGC服务 + Token比价 */
        .section-services {
            padding: 96px 0;
            background: var(--bg-base);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-bottom: 64px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 32px;
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--gradient-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 24px;
        }

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

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

        /* Token比价模块 */
        .price-compare-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            box-shadow: var(--shadow-md);
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        .compare-table th, .compare-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 15px;
        }

        .compare-table th {
            font-weight: 700;
            background-color: var(--bg-base);
            color: var(--text-main);
        }

        .compare-table tbody tr:hover {
            background-color: rgba(99, 102, 241, 0.02);
        }

        .badge-saving {
            background: var(--gradient-subtle);
            color: var(--primary);
            padding: 4px 8px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
        }

        /* 一站式制作 与 流程、技术标准 */
        .section-workflow {
            padding: 96px 0;
            background: var(--bg-card);
        }

        .workflow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .workflow-step {
            text-align: center;
            position: relative;
        }

        .workflow-step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: #ffffff;
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: var(--shadow-sm);
        }

        .workflow-step h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .workflow-step p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 全行业解决方案 与 服务网络 */
        .section-solutions {
            padding: 96px 0;
            background: var(--bg-base);
        }

        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-bottom: 64px;
        }

        .solution-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 32px;
            transition: var(--transition);
        }

        .solution-card:hover {
            transform: scale(1.02);
            box-shadow: var(--shadow-md);
        }

        .solution-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .solution-bullet {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--secondary);
            display: inline-block;
        }

        .solution-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .solution-list {
            list-style: none;
            font-size: 13px;
            color: var(--text-main);
        }

        .solution-list li {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .solution-list li::before {
            content: "•";
            color: var(--primary);
            font-weight: bold;
        }

        /* 地图/服务网络示意图 (使用CSS布局，不使用任何外链图片) */
        .network-map-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 48px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .network-nodes {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 32px;
        }

        .network-node {
            background: var(--bg-base);
            padding: 16px 24px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            min-width: 140px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
        }

        .network-node:hover {
            border-color: var(--primary);
            background: var(--gradient-subtle);
            color: var(--primary);
        }

        /* 职业技术培训板块 */
        .section-training {
            padding: 96px 0;
            background: var(--bg-card);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .training-card {
            background: var(--bg-base);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 24px;
            text-align: center;
            transition: var(--transition);
        }

        .training-card:hover {
            transform: translateY(-6px);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .training-badge {
            display: inline-block;
            padding: 4px 10px;
            font-size: 11px;
            background: var(--gradient-subtle);
            color: var(--primary);
            border-radius: 6px;
            margin-bottom: 16px;
            font-weight: 600;
        }

        .training-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .training-card p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 客户案例中心 (此板块包含指定的页面图片展示) */
        .section-cases {
            padding: 96px 0;
            background: var(--bg-base);
        }

        .case-gallery {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 48px;
        }

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

        .case-img-wrap {
            width: 100%;
            height: 200px;
            background: #e2e8f0;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .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-tag {
            font-size: 12px;
            color: var(--secondary);
            font-weight: 600;
            margin-bottom: 8px;
            display: block;
        }

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

        .case-info p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 对比评测要求板块 */
        .section-evaluation {
            padding: 96px 0;
            background: var(--bg-card);
        }

        .evaluation-box {
            border: 1px solid var(--border-color);
            background: var(--bg-base);
            border-radius: 24px;
            padding: 48px;
            box-shadow: var(--shadow-sm);
        }

        .eval-hero {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 32px;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 24px;
        }

        .eval-score-wrap {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .eval-score {
            font-size: 56px;
            font-weight: 900;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .eval-rating {
            display: flex;
            flex-direction: column;
        }

        .eval-stars {
            color: #fbbf24;
            font-size: 24px;
            letter-spacing: 2px;
        }

        .eval-rating-label {
            font-size: 14px;
            color: var(--text-muted);
        }

        .eval-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .eval-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
        }

        .eval-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .eval-item p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 帮助中心、AI术语百科与常见问题自助排查 */
        .section-help {
            padding: 96px 0;
            background: var(--bg-base);
        }

        .help-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 48px;
        }

        .glossary-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 32px;
        }

        .glossary-box h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 24px;
        }

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

        .glossary-item {
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
        }

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

        .glossary-term {
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 4px;
        }

        .glossary-definition {
            font-size: 13px;
            color: var(--text-muted);
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-header {
            width: 100%;
            padding: 20px 24px;
            background: none;
            border: none;
            text-align: left;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .faq-icon {
            font-size: 20px;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(99, 102, 241, 0.01);
        }

        .faq-content {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .faq-item.active .faq-body {
            max-height: 200px;
        }

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

        /* 行业资讯 / 知识库 / 最新文章 */
        .section-articles {
            padding: 96px 0;
            background: var(--bg-card);
        }

        .articles-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--bg-base);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }

        .article-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
        }

        .article-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .article-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .article-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .article-link:hover {
            color: var(--secondary);
        }

        /* 客户评论模块 */
        .section-testimonials {
            padding: 96px 0;
            background: var(--bg-base);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 32px;
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
        }

        .testimonial-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
        }

        .testimonial-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gradient-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--primary);
        }

        .testimonial-info h4 {
            font-size: 15px;
            font-weight: 700;
        }

        .testimonial-info p {
            font-size: 12px;
            color: var(--text-light);
        }

        .testimonial-card p.content {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 智能需求匹配 + 联系我们 + 加盟代理 */
        .section-contact {
            padding: 96px 0;
            background: var(--bg-card);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
        }

        .contact-info-side h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 24px;
        }

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

        .contact-channel-item {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            background: var(--gradient-subtle);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: bold;
        }

        .contact-label {
            font-size: 14px;
            color: var(--text-muted);
        }

        .contact-value {
            font-weight: 700;
            color: var(--text-main);
        }

        .qr-codes {
            display: flex;
            gap: 24px;
            margin-top: 32px;
        }

        .qr-box {
            text-align: center;
        }

        .qr-box img {
            width: 120px;
            height: 120px;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 6px;
            background: #ffffff;
            margin-bottom: 8px;
        }

        .qr-box p {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
        }

        .contact-form-side {
            background: var(--bg-base);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 40px;
        }

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

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: #ffffff;
            color: var(--text-main);
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
        }

        .btn-block {
            width: 100%;
        }

        /* 浮动客服栏 */
        .floating-bar {
            position: fixed;
            right: 24px;
            bottom: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            z-index: 99;
        }

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

        .float-item:hover {
            transform: translateY(-2px);
            background: var(--gradient-primary);
            color: #ffffff;
        }

        .float-item-qr {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 12px;
            border-radius: 12px;
            box-shadow: var(--shadow-lg);
            display: none;
            width: 140px;
        }

        .float-item-qr img {
            width: 100%;
            height: auto;
            border-radius: 6px;
        }

        .float-item:hover .float-item-qr {
            display: block;
        }

        /* 页脚与友情链接 */
        .footer {
            background: var(--bg-dark);
            color: #ffffff;
            padding: 80px 0 40px;
            border-top: 1px solid #1e293b;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 60px;
            margin-bottom: 60px;
        }

        .footer-brand h3 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 16px;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .footer-brand p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .footer-links h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            color: #f1f5f9;
        }

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

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

        .footer-links ul li a {
            color: var(--text-light);
            font-size: 14px;
        }

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

        .footer-friend-links {
            grid-column: 1 / span 3;
            border-top: 1px solid #1e293b;
            padding-top: 32px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: var(--text-light);
            align-items: center;
        }

        .footer-friend-links a {
            color: var(--text-light);
            margin-right: 12px;
        }

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

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
        }

        .footer-bottom-nav {
            display: flex;
            gap: 20px;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .hero-title h1 { font-size: 40px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .services-grid { grid-template-columns: repeat(2, 1fr); }
            .workflow-grid { grid-template-columns: repeat(2, 1fr); }
            .solution-grid { grid-template-columns: repeat(2, 1fr); }
            .training-grid { grid-template-columns: repeat(3, 1fr); }
            .case-gallery { grid-template-columns: repeat(2, 1fr); }
            .evaluation-grid { grid-template-columns: 1fr; }
            .help-grid { grid-template-columns: 1fr; }
            .articles-list { grid-template-columns: repeat(2, 1fr); }
            .testimonials-grid { grid-template-columns: 1fr; }
            .contact-grid { grid-template-columns: 1fr; }
        }

        @media (max-width: 768px) {
            .navbar-inner { height: 64px; }
            .nav-menu {
                position: absolute;
                top: 64px;
                left: 0;
                width: 100%;
                background: #ffffff;
                border-bottom: 1px solid var(--border-color);
                flex-direction: column;
                padding: 24px 0;
                gap: 16px;
                display: none;
                box-shadow: var(--shadow-lg);
            }
            .nav-menu.active { display: flex; }
            .nav-toggle { display: block; }
            .nav-cta { display: none; }
            .hero-title h1 { font-size: 32px; }
            .about-grid { grid-template-columns: 1fr; gap: 40px; }
            .stats-grid { grid-template-columns: 1fr; }
            .services-grid { grid-template-columns: 1fr; }
            .workflow-grid { grid-template-columns: 1fr; }
            .solution-grid { grid-template-columns: 1fr; }
            .training-grid { grid-template-columns: 1fr; }
            .case-gallery { grid-template-columns: 1fr; }
            .articles-list { grid-template-columns: 1fr; }
            .footer-inner { grid-template-columns: 1fr; gap: 40px; }
            .footer-friend-links { grid-column: 1; }
        }