/* 样式基础定义：斑斓彩调风 (浅色背景 + 精致亮丽渐变点缀) */
        :root {
            --primary: #6366f1; /* 靛蓝 */
            --primary-glow: rgba(99, 102, 241, 0.15);
            --secondary: #ec4899; /* 玫瑰粉 */
            --accent: #06b6d4; /* 青色 */
            --success: #10b981; /* 翡翠绿 */
            --bg-base: #f8fafc; /* 浅灰底 */
            --bg-card: #ffffff;
            --text-main: #0f172a; /* 深灰黑 */
            --text-muted: #475569; /* 中灰 */
            --border-color: #e2e8f0;
            --gradient-rainbow: linear-gradient(135deg, #6366f1 0%, #a855f7 35%, #ec4899 70%, #06b6d4 100%);
            --gradient-soft: linear-gradient(135deg, #e0e7ff 0%, #fae8ff 50%, #e0f2fe 100%);
            --radius-lg: 16px;
            --radius-md: 8px;
            --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, "Noto Sans CJK SC", 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);
        }

        /* 全局通用布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }
        
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

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

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

        .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            background: var(--gradient-rainbow);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        nav {
            display: flex;
            align-items: center;
            gap: 20px;
        }

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

        .nav-menu a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
        }

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

        .nav-btn-group {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: var(--transition);
            border: none;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-glow);
        }

        .btn-primary {
            background: var(--gradient-rainbow);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
        }

        /* 移动端菜单按钮 */
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
        }

        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--text-main);
            transition: var(--transition);
        }

        /* 主体布局 */
        main {
            padding-top: 72px;
        }

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

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 48px;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--primary);
            background: var(--primary-glow);
            border-radius: 50px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
        }

        /* Hero首屏 - 严禁出现任何图片 */
        .hero-section {
            background: var(--gradient-soft);
            padding: 120px 0 100px;
            overflow: hidden;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--border-color);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 24px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.02);
        }

        .hero-badge-tag {
            background: var(--gradient-rainbow);
            color: white;
            padding: 2px 8px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
        }

        h1.hero-title {
            font-size: 3.5rem;
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: -0.03em;
            color: var(--text-main);
            max-width: 900px;
            margin: 0 auto 24px;
        }

        .hero-title span {
            background: var(--gradient-rainbow);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-p {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 650px;
            margin: 0 auto 36px;
        }

        .hero-cta {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 48px;
        }

        .hero-cta .btn {
            padding: 14px 32px;
            font-size: 1.05rem;
        }

        /* 斑斓粒子与网格装饰 */
        .hero-bg-shapes {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            pointer-events: none;
            z-index: 0;
        }

        .shape-glow {
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.2) 0%, rgba(255,255,255,0) 70%);
            filter: blur(40px);
            animation: pulse-glow 8s infinite alternate;
        }
        
        .shape-glow-1 { top: 10%; left: 5%; }
        .shape-glow-2 { bottom: 10%; right: 5%; background: radial-gradient(circle, rgba(236, 72, 153, 0.15) 0%, rgba(255,255,255,0) 70%); }

        @keyframes pulse-glow {
            0% { transform: scale(1); opacity: 0.6; }
            100% { transform: scale(1.2); opacity: 0.9; }
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
            position: relative;
            z-index: 2;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.8);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            background: #ffffff;
            box-shadow: 0 12px 24px rgba(99, 102, 241, 0.08);
            border-color: rgba(99, 102, 241, 0.2);
        }

        .stat-num {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--primary);
            background: var(--gradient-rainbow);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 关于我们与平台介绍 */
        .about-section {
            background: #ffffff;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .about-p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 1.05rem;
        }

        .feature-bullets {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 30px;
        }

        .feature-bullets li {
            position: relative;
            padding-left: 24px;
            font-weight: 500;
            font-size: 0.95rem;
        }

        .feature-bullets li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: 900;
        }

        .about-media {
            position: relative;
        }

        .about-media img {
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 40px rgba(0,0,0,0.06);
            display: block;
            border: 4px solid #ffffff;
        }

        /* AIGC 服务与模型聚合 */
        .services-section {
            background: var(--bg-base);
        }

        .models-marquee {
            overflow: hidden;
            padding: 24px 0;
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            margin-bottom: 40px;
            position: relative;
        }

        .models-track {
            display: flex;
            width: max-content;
            animation: marquee 25s linear infinite;
            gap: 40px;
        }

        .model-tag {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-muted);
            white-space: nowrap;
            background: var(--bg-base);
            padding: 8px 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .model-tag:hover {
            color: var(--primary);
            border-color: var(--primary);
            transform: scale(1.05);
        }

        @keyframes marquee {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

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

        .service-card {
            background: #ffffff;
            border: 1.5px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-rainbow);
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 32px rgba(0,0,0,0.05);
            border-color: transparent;
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--primary-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.5rem;
            margin-bottom: 20px;
            font-weight: bold;
        }

        .service-card h3 {
            font-size: 1.35rem;
            margin-bottom: 12px;
            font-weight: 700;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 16px;
        }

        /* 一站式AIGC制作场景 */
        .production-section {
            background: #ffffff;
        }

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

        .prod-card {
            background: var(--bg-base);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

        .prod-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.06);
            border-color: rgba(99, 102, 241, 0.2);
        }

        .prod-img-wrapper {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #e2e8f0;
        }

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

        .prod-card:hover .prod-img-wrapper img {
            transform: scale(1.05);
        }

        .prod-content {
            padding: 24px;
        }

        .prod-content h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .prod-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 对比评测版块 */
        .evaluation-section {
            background: var(--bg-base);
        }

        .eval-score-box {
            background: var(--gradient-rainbow);
            border-radius: var(--radius-lg);
            padding: 32px;
            color: #ffffff;
            display: flex;
            justify-content: space-around;
            align-items: center;
            margin-bottom: 48px;
            box-shadow: 0 15px 30px rgba(99, 102, 241, 0.2);
        }

        .score-item {
            text-align: center;
        }

        .score-title {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 8px;
            font-weight: 500;
        }

        .score-num {
            font-size: 3.5rem;
            font-weight: 900;
            line-height: 1;
        }

        .score-desc {
            font-size: 1.15rem;
            font-weight: 600;
            margin-top: 4px;
        }

        .eval-table-wrapper {
            width: 100%;
            overflow-x: auto;
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: 0 8px 20px rgba(0,0,0,0.02);
        }

        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .eval-table th, .eval-table td {
            padding: 20px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .eval-table th {
            background-color: #f1f5f9;
            font-weight: 700;
            color: var(--text-main);
        }

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

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

        .badge-pro {
            background: var(--primary-glow);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: bold;
            font-size: 0.8rem;
        }

        /* 职业技术与人工智能培训 */
        .training-section {
            background: #ffffff;
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

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

        .train-card:hover {
            border-color: var(--primary);
            box-shadow: 0 10px 24px rgba(99, 102, 241, 0.05);
        }

        .train-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .train-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .train-item {
            background: #ffffff;
            padding: 14px 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .train-item::after {
            content: "工信部教育考试中心";
            font-size: 0.75rem;
            color: var(--secondary);
            border: 1px solid var(--secondary);
            padding: 2px 6px;
            border-radius: 4px;
        }

        /* 标准化流程与全国服务网络 */
        .process-section {
            background: var(--bg-base);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .process-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 24px;
            position: relative;
            text-align: center;
            border: 1px solid var(--border-color);
        }

        .process-step {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: var(--gradient-rainbow);
            color: #ffffff;
            font-weight: 800;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
        }

        .process-card h4 {
            margin-top: 10px;
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .process-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 解决方案、网络与代理 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .solution-card:hover {
            transform: scale(1.02);
            border-color: var(--accent);
        }

        /* 代理与算力被动收入 */
        .agent-section {
            background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
            color: #ffffff;
            padding: 80px 0;
            border-radius: var(--radius-lg);
            margin: 40px auto;
            max-width: calc(100% - 48px);
        }

        .agent-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .agent-content h2 {
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .agent-content p {
            opacity: 0.85;
            margin-bottom: 30px;
            font-size: 1.1rem;
        }

        .agent-bullets {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .agent-bullets li {
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .agent-bullets li::before {
            content: '✦';
            color: var(--secondary);
            font-size: 1.2rem;
        }

        .agent-action {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 32px;
            border-radius: var(--radius-lg);
            backdrop-filter: blur(10px);
            text-align: center;
        }

        /* 客户评论卡片 */
        .reviews-section {
            background: var(--bg-base);
        }

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

        .review-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .review-quote {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            font-style: italic;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-rainbow);
            color: #ffffff;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
        }

        .author-info h5 {
            font-size: 1rem;
            font-weight: 700;
        }

        .author-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Token比价参考表 */
        .token-section {
            background: #ffffff;
        }

        .token-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: flex-start;
        }

        .token-card {
            border: 1.5px dashed var(--primary);
            border-radius: var(--radius-lg);
            padding: 32px;
            background: var(--primary-glow);
        }

        /* FAQ折叠面板 */
        .faq-section {
            background: var(--bg-base);
        }

        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-header {
            width: 100%;
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            cursor: pointer;
            outline: none;
        }

        .faq-header::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }

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

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }

        .faq-content {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            border-top: 1px solid transparent;
        }

        .faq-item.active .faq-content {
            border-top-color: var(--border-color);
        }

        /* 自助排查与术语百科 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            margin-top: 40px;
        }

        .help-box {
            background: #ffffff;
            padding: 28px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }

        .help-box h4 {
            font-size: 1.25rem;
            margin-bottom: 16px;
            font-weight: 700;
            color: var(--text-main);
        }

        .help-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .help-list li {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .help-list li strong {
            color: var(--text-main);
        }

        /* 资讯与知识库 */
        .articles-section {
            background: #ffffff;
        }

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

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

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

        .article-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-card a {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 16px;
        }

        /* 智能需求匹配与联系我们 */
        .contact-section {
            background: var(--bg-base);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
        }

        .form-card {
            background: #ffffff;
            padding: 40px;
            border-radius: var(--radius-lg);
            box-shadow: 0 15px 35px rgba(0,0,0,0.03);
            border: 1px solid var(--border-color);
        }

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

        .form-label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1.5px solid var(--border-color);
            border-radius: var(--radius-md);
            font-family: inherit;
            font-size: 0.95rem;
            transition: var(--transition);
            background: var(--bg-base);
        }

        .form-input:focus, .form-select:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary);
            background: #ffffff;
            box-shadow: 0 0 0 3px var(--primary-glow);
        }

        .form-textarea {
            resize: vertical;
            height: 120px;
        }

        .contact-info-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .info-block {
            background: #ffffff;
            padding: 24px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            margin-bottom: 20px;
        }

        .info-block h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .qr-wrapper {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .qr-wrapper img {
            width: 100px;
            height: 100px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }

        .info-social {
            display: flex;
            gap: 16px;
            margin-top: 12px;
        }

        .social-tag {
            background: var(--bg-base);
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* 友情链接 */
        .links-section {
            background: #ffffff;
            padding: 40px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .links-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            justify-content: center;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .links-wrapper a {
            color: var(--text-muted);
        }

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

        /* 页脚 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            color: #ffffff;
            font-size: 1.35rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .footer-brand p {
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .footer-col h5 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-menu {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-copyright {
            font-size: 0.85rem;
        }

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

        /* 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: 50px;
            height: 50px;
            background: #ffffff;
            border-radius: 50%;
            box-shadow: 0 4px 16px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .float-btn:hover {
            transform: translateY(-4px);
            background: var(--gradient-rainbow);
            color: #ffffff;
        }

        .float-btn svg {
            width: 22px;
            height: 22px;
            fill: currentColor;
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #ffffff;
            padding: 16px;
            border-radius: var(--radius-lg);
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            border: 1px solid var(--border-color);
        }

        .qr-popover img {
            width: 140px;
            height: 140px;
            display: block;
            margin-bottom: 8px;
        }

        .qr-popover p {
            color: var(--text-main);
            font-size: 0.8rem;
            font-weight: 700;
            white-space: nowrap;
        }

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

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            h1.hero-title { font-size: 2.75rem; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .services-grid, .production-grid, .solutions-grid, .reviews-grid, .articles-grid { grid-template-columns: repeat(2, 1fr); }
            .about-grid, .contact-grid, .token-grid, .agent-container, .troubleshoot-grid { grid-template-columns: 1fr; }
            .process-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }

            .nav-menu.active {
                display: flex;
            }

            .mobile-toggle {
                display: flex;
            }

            .nav-btn-group {
                display: none;
            }

            h1.hero-title { font-size: 2.25rem; }
            .stats-grid, .services-grid, .production-grid, .process-grid, .reviews-grid, .articles-grid { grid-template-columns: 1fr; }
            
            .eval-score-box {
                flex-direction: column;
                gap: 24px;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }