/* 基础重置 */
        :root {
            --primary: #0066ff;
            --primary-bright: #00f0ff;
            --secondary: #7000ff;
            --accent: #ff007f;
            --dark: #0f172a;
            --light-bg: #f8fafc;
            --card-bg: #ffffff;
            --text-main: #334155;
            --text-title: #0f172a;
            --border: #e2e8f0;
            --radius-lg: 16px;
            --radius-md: 8px;
            --shadow: 0 10px 30px -10px rgba(0, 102, 255, 0.1);
            --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(--light-bg);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        /* 统一容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 辅助样式 */
        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 2.2rem;
            color: var(--text-title);
            position: relative;
            display: inline-block;
            margin-bottom: 12px;
            font-weight: 800;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-bright));
            border-radius: 2px;
        }

        .section-title p {
            font-size: 1.1rem;
            color: #64748b;
        }

        /* 极致鲜亮按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(112, 0, 255, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(112, 0, 255, 0.5);
            background: linear-gradient(135deg, var(--primary-bright), var(--secondary));
        }

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

        .btn-outline:hover {
            background: rgba(0, 102, 255, 0.05);
            transform: translateY(-2px);
        }

        /* 顶部导航 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: var(--transition);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-box {
            display: flex;
            align-items: center;
        }

        .logo-box img {
            height: 40px;
            width: auto;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
        }

        .nav-menu a {
            text-decoration: none;
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
        }

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

        .nav-btn {
            background: var(--primary);
            color: #fff;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 600;
            transition: var(--transition);
        }

        .nav-btn:hover {
            background: var(--secondary);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-title);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* 首屏 Hero 区域 (无图，纯CSS渐变科技感) */
        .hero {
            padding-top: 140px;
            padding-bottom: 80px;
            background: radial-gradient(circle at 90% 10%, rgba(0, 240, 255, 0.15) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(112, 0, 255, 0.15) 0%, transparent 40%),
                        var(--light-bg);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            width: 200%;
            height: 200%;
            top: -50%;
            left: -50%;
            background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
            background-size: 40px 40px;
            opacity: 0.3;
            z-index: 1;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 102, 255, 0.08);
            color: var(--primary);
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(0, 102, 255, 0.15);
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.25;
            color: var(--text-title);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 1.25rem;
            color: #4b5563;
            margin-bottom: 35px;
            line-height: 1.6;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 40px;
        }

        .hero-banner-link {
            text-decoration: none;
        }

        /* 注册送算力跑马灯 */
        .promo-bar {
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 10px 0;
            overflow: hidden;
            white-space: nowrap;
            position: relative;
        }

        .promo-track {
            display: inline-block;
            animation: marquee 25s linear infinite;
        }

        .promo-track span {
            margin-right: 50px;
            font-weight: bold;
            font-size: 0.95rem;
            letter-spacing: 1px;
        }

        @keyframes marquee {
            0% { transform: translate3d(0, 0, 0); }
            100% { transform: translate3d(-50%, 0, 0); }
        }

        /* 模型聚合展示墙 */
        .model-wall {
            background: #fff;
            padding: 30px 0;
            border-bottom: 1px solid var(--border);
        }

        .model-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
        }

        .model-badge {
            background: var(--light-bg);
            color: var(--text-main);
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .model-badge:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 10px rgba(0, 102, 255, 0.1);
        }

        /* 数据指标卡片 */
        .stats-section {
            background: #fff;
            border-bottom: 1px solid var(--border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stat-card {
            padding: 20px;
        }

        .stat-card .num {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 5px;
        }

        .stat-card .label {
            font-size: 0.95rem;
            color: #64748b;
            font-weight: 600;
        }

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

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.8rem;
            color: var(--text-title);
            margin-bottom: 15px;
            font-weight: 700;
        }

        .about-content p {
            margin-bottom: 15px;
            color: #4b5563;
        }

        .about-features {
            margin-top: 25px;
        }

        .about-feat-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 15px;
        }

        .about-feat-item .icon {
            width: 24px;
            height: 24px;
            background: var(--primary);
            border-radius: 50%;
            margin-right: 12px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.8rem;
            font-weight: bold;
        }

        .about-feat-item div h4 {
            font-size: 1rem;
            color: var(--text-title);
            margin-bottom: 2px;
        }

        .about-feat-item div p {
            font-size: 0.9rem;
            color: #64748b;
            margin: 0;
        }

        .about-info-box {
            background: linear-gradient(135deg, rgba(0, 102, 255, 0.03) 0%, rgba(112, 0, 255, 0.03) 100%);
            border: 1px solid var(--border);
            padding: 40px;
            border-radius: var(--radius-lg);
        }

        .about-info-box h4 {
            font-size: 1.25rem;
            color: var(--text-title);
            margin-bottom: 20px;
        }

        .company-profile-list {
            list-style: none;
        }

        .company-profile-list li {
            padding: 10px 0;
            border-bottom: 1px dotted var(--border);
            display: flex;
            justify-content: space-between;
        }

        .company-profile-list li span:first-child {
            font-weight: 600;
            color: #64748b;
        }

        /* 服务与能力卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            padding: 30px;
            border-radius: var(--radius-lg);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
            border-color: rgba(0, 102, 255, 0.2);
        }

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

        .service-icon {
            font-size: 2rem;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--text-title);
        }

        .service-card p {
            font-size: 0.95rem;
            color: #64748b;
        }

        /* 一站式制作场景 */
        .prod-section {
            background: #fff;
        }

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

        .prod-card {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            background: var(--light-bg);
            transition: var(--transition);
        }

        .prod-card:hover {
            background: #fff;
            border-color: var(--primary-bright);
            box-shadow: 0 10px 20px rgba(0, 240, 255, 0.1);
            transform: translateY(-3px);
        }

        .prod-card h4 {
            font-size: 1.1rem;
            color: var(--text-title);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .prod-card h4 span {
            color: var(--primary);
        }

        .prod-card p {
            font-size: 0.9rem;
            color: #64748b;
        }

        /* 全行业解决方案 */
        .sol-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .sol-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .sol-card-body {
            padding: 24px;
        }

        .sol-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(112, 0, 255, 0.08);
            color: var(--secondary);
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 12px;
        }

        .sol-card h3 {
            font-size: 1.2rem;
            color: var(--text-title);
            margin-bottom: 10px;
        }

        .sol-card p {
            font-size: 0.9rem;
            color: #64748b;
        }

        /* 全国服务网络 */
        .network-section {
            background: #fff;
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .map-container {
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            background: #f8fafc;
            padding: 30px;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 300px;
            position: relative;
        }

        .map-placeholder {
            text-align: center;
        }

        .map-placeholder p {
            font-weight: 600;
            margin-bottom: 10px;
        }

        .nodes-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            margin-top: 20px;
        }

        .node-tag {
            background: #fff;
            border: 1px solid var(--border);
            padding: 8px;
            border-radius: 4px;
            font-size: 0.8rem;
            text-align: center;
            font-weight: 600;
            color: var(--text-title);
        }

        /* 流程与标准 */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-step {
            background: #fff;
            border: 1px solid var(--border);
            padding: 24px;
            border-radius: var(--radius-md);
            position: relative;
            transition: var(--transition);
        }

        .process-step:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .step-num {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 15px;
        }

        .process-step h4 {
            font-size: 1.05rem;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 0.85rem;
            color: #64748b;
        }

        /* 技术标准 */
        .tech-standards {
            margin-top: 40px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px;
        }

        .tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .tech-item h5 {
            font-size: 1rem;
            color: var(--text-title);
            margin-bottom: 6px;
            font-weight: 700;
        }

        .tech-item p {
            font-size: 0.85rem;
            color: #64748b;
        }

        /* 案例中心 */
        .cases-section {
            background: #fff;
        }

        .cases-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 30px;
        }

        .case-main {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .case-card-large {
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--light-bg);
        }

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

        .case-img-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
            display: block;
        }

        .case-body {
            padding: 24px;
        }

        .case-body h3 {
            font-size: 1.3rem;
            margin-bottom: 8px;
            color: var(--text-title);
        }

        .case-body p {
            font-size: 0.95rem;
            color: #64748b;
        }

        .case-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .case-card-small {
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
        }

        /* 对比评测 */
        .eval-section {
            background: var(--light-bg);
        }

        .eval-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow);
        }

        .eval-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--border);
            padding-bottom: 20px;
            margin-bottom: 25px;
            flex-wrap: wrap;
            gap: 15px;
        }

        .eval-score {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .score-num {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
        }

        .score-stars {
            color: #f59e0b;
            font-size: 1.5rem;
        }

        .score-label {
            font-weight: bold;
            color: var(--text-title);
        }

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

        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .eval-table th, .eval-table td {
            padding: 16px;
            border-bottom: 1px solid var(--border);
        }

        .eval-table th {
            background: var(--light-bg);
            font-weight: 700;
            color: var(--text-title);
        }

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

        .eval-table tr:hover {
            background: rgba(0, 102, 255, 0.01);
        }

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

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

        .token-card {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            background: var(--light-bg);
            transition: var(--transition);
        }

        .token-card.best {
            border-color: var(--primary);
            box-shadow: 0 4px 20px rgba(0, 102, 255, 0.15);
            background: #fff;
            position: relative;
        }

        .token-card.best::before {
            content: '首选推荐';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translate(-50%, -50%);
            background: var(--primary);
            color: #fff;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: bold;
        }

        .token-card h4 {
            font-size: 1.15rem;
            color: var(--text-title);
            margin-bottom: 15px;
        }

        .token-price {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .token-price span {
            font-size: 0.85rem;
            color: #64748b;
            font-weight: normal;
        }

        .token-desc {
            font-size: 0.85rem;
            color: #64748b;
            margin-bottom: 15px;
        }

        /* 人工智能培训 */
        .train-section {
            background: var(--light-bg);
        }

        .train-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .train-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px;
            transition: var(--transition);
        }

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

        .train-badge {
            display: inline-block;
            font-size: 0.75rem;
            background: rgba(0, 240, 255, 0.1);
            color: #0099aa;
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 15px;
            font-weight: bold;
        }

        .train-card h3 {
            font-size: 1.25rem;
            color: var(--text-title);
            margin-bottom: 12px;
        }

        .train-card p {
            font-size: 0.9rem;
            color: #64748b;
            margin-bottom: 20px;
        }

        .train-details {
            border-top: 1px solid var(--border);
            padding-top: 15px;
            font-size: 0.85rem;
            color: var(--text-main);
        }

        .train-details div {
            margin-bottom: 6px;
        }

        /* 加盟代理 */
        .agent-section {
            background: #fff;
            border-bottom: 1px solid var(--border);
        }

        .agent-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .agent-content h3 {
            font-size: 1.8rem;
            color: var(--text-title);
            margin-bottom: 15px;
            font-weight: 700;
        }

        .agent-content p {
            color: #4b5563;
            margin-bottom: 20px;
        }

        .agent-feats {
            list-style: none;
        }

        .agent-feats li {
            margin-bottom: 10px;
            padding-left: 20px;
            position: relative;
        }

        .agent-feats li::before {
            content: '✓';
            color: var(--primary);
            position: absolute;
            left: 0;
            font-weight: bold;
        }

        .agent-banner {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 40px;
            border-radius: var(--radius-lg);
            text-align: center;
        }

        .agent-banner h4 {
            font-size: 1.5rem;
            margin-bottom: 10px;
        }

        .agent-banner p {
            margin-bottom: 20px;
            opacity: 0.9;
        }

        /* 自助排查与术语百科 */
        .help-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .help-box {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px;
        }

        .help-box h3 {
            font-size: 1.3rem;
            color: var(--text-title);
            margin-bottom: 20px;
            border-bottom: 2px solid var(--light-bg);
            padding-bottom: 10px;
        }

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

        .trouble-list li, .wiki-list li {
            margin-bottom: 15px;
        }

        .trouble-list li h5, .wiki-list li h5 {
            font-size: 0.95rem;
            color: var(--text-title);
            margin-bottom: 4px;
            font-weight: 700;
        }

        .trouble-list li p, .wiki-list li p {
            font-size: 0.85rem;
            color: #64748b;
        }

        /* 常见用户问题 FAQ */
        .faq-section {
            background: var(--light-bg);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

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

        .faq-header {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            background: #fff;
            transition: var(--transition);
        }

        .faq-header:hover {
            background: rgba(0, 102, 255, 0.02);
        }

        .faq-question {
            font-weight: 700;
            color: var(--text-title);
            font-size: 1rem;
        }

        .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: #fafcfd;
        }

        .faq-answer-content {
            padding: 20px;
            border-top: 1px solid var(--border);
            font-size: 0.95rem;
            color: var(--text-main);
            line-height: 1.6;
        }

        .faq-item.active .faq-answer {
            max-height: 300px; /* 适当足够的值即可 */
        }

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

        /* 客户评论卡片 */
        .reviews-section {
            background: #fff;
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: var(--light-bg);
            border: 1px solid var(--border);
            padding: 30px;
            border-radius: var(--radius-lg);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-text {
            font-style: italic;
            font-size: 0.95rem;
            margin-bottom: 20px;
            color: var(--text-main);
        }

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

        .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1rem;
        }

        .author-info h4 {
            font-size: 0.95rem;
            color: var(--text-title);
            margin-bottom: 2px;
        }

        .author-info p {
            font-size: 0.8rem;
            color: #64748b;
            margin: 0;
        }

        /* 最新文章 / 知识库 */
        .articles-section {
            background: var(--light-bg);
        }

        .articles-list-box {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
        }

        .articles-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .article-link-item {
            padding: 12px 20px;
            background: var(--light-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            text-decoration: none;
            color: var(--text-title);
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .article-link-item:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateX(3px);
            background: #fff;
        }

        /* 智能需求匹配与联系表单 */
        .contact-section {
            background: #fff;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .contact-info h3 {
            font-size: 1.8rem;
            color: var(--text-title);
            margin-bottom: 20px;
            font-weight: 700;
        }

        .contact-info p {
            margin-bottom: 30px;
            color: #4b5563;
        }

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

        .method-item {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .method-icon {
            width: 46px;
            height: 46px;
            background: rgba(0, 102, 255, 0.08);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .method-details h4 {
            font-size: 0.95rem;
            color: var(--text-title);
            margin-bottom: 2px;
        }

        .method-details p {
            font-size: 0.9rem;
            color: #64748b;
            margin: 0;
        }

        /* 需求匹配表单 */
        .contact-form-box {
            background: var(--light-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            background: #fff;
            color: var(--text-title);
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.15);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }

        /* 底部与友情链接 */
        .footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 80px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 60px;
        }

        .footer-brand h4 {
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 20px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .footer-links h5 {
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 20px;
            font-weight: 600;
        }

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

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

        .footer-links ul li a {
            text-decoration: none;
            color: #94a3b8;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-links ul li a:hover {
            color: #fff;
        }

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

        .footer-qr img {
            width: 120px;
            height: 120px;
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            background: #fff;
            padding: 5px;
        }

        .footer-qr p {
            font-size: 0.85rem;
        }

        /* 友情链接专区 */
        .friend-links-box {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 25px 0;
            margin-bottom: 25px;
        }

        .friend-links-title {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 15px;
            font-weight: 600;
        }

        .friend-links-container {
            display: flex;
            flex-wrap: wrap;
            gap: 15px 25px;
        }

        .friend-links-container a {
            color: #64748b;
            text-decoration: none;
            font-size: 0.85rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.85rem;
        }

        /* 浮动客服入口 */
        .float-kefu {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-item {
            width: 50px;
            height: 50px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            position: relative;
            transition: var(--transition);
        }

        .float-item:hover {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }

        .float-item-icon {
            font-weight: bold;
            font-size: 1.2rem;
            color: var(--primary);
        }

        .float-item:hover .float-item-icon {
            color: #fff;
        }

        .float-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 15px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
            display: none;
            text-align: center;
            width: 150px;
        }

        .float-popover img {
            width: 110px;
            height: 110px;
            margin-bottom: 8px;
        }

        .float-popover p {
            font-size: 0.75rem;
            color: var(--text-title);
            margin: 0;
            font-weight: bold;
        }

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

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .services-grid, .sol-grid, .train-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .prod-grid, .process-grid, .stats-grid, .token-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #fff;
                border-bottom: 1px solid var(--border);
                padding: 20px;
                gap: 15px;
                box-shadow: 0 10px 15px rgba(0, 0, 0, 0.05);
            }

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

            .menu-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 1.8rem;
            }

            .hero-btns {
                flex-direction: column;
                align-items: center;
            }

            .hero-btns .btn {
                width: 100%;
                max-width: 300px;
            }

            .about-grid, .network-grid, .agent-grid, .help-grid, .contact-grid {
                grid-template-columns: 1fr;
            }

            .services-grid, .sol-grid, .train-grid, .reviews-grid, .prod-grid, .process-grid, .stats-grid, .token-grid {
                grid-template-columns: 1fr;
            }

            .tech-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
        }