/* 基础复位与全局变量 (斑斓彩调风：白/淡灰底，搭配炫彩渐变微修饰) */
    :root {
      --primary-gradient: linear-gradient(135deg, #6366f1, #a855f7, #ec4899);
      --secondary-gradient: linear-gradient(135deg, #3b82f6, #06b6d4, #10b981);
      --text-main: #1f2937;
      --text-muted: #4b5563;
      --bg-main: #fafaff;
      --bg-card: #ffffff;
      --border-color: #f1f5f9;
      --accent-color: #6366f1;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 20px rgba(99, 102, 241, 0.08);
      --shadow-lg: 0 10px 30px rgba(99, 102, 241, 0.12);
      --radius: 12px;
      --container-width: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    /* 斑斓彩风背景装饰球 */
    .bg-decorator {
      position: absolute;
      width: 400px;
      height: 400px;
      border-radius: 50%;
      filter: blur(120px);
      z-index: -1;
      opacity: 0.15;
      pointer-events: none;
    }
    .bg-dec-1 {
      top: 10%;
      left: -100px;
      background: radial-gradient(circle, #6366f1, #a855f7);
    }
    .bg-dec-2 {
      top: 40%;
      right: -100px;
      background: radial-gradient(circle, #ec4899, #f43f5e);
    }
    .bg-dec-3 {
      bottom: 10%;
      left: 10%;
      background: radial-gradient(circle, #3b82f6, #06b6d4);
    }

    /* 统一样式容器 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 24px;
    }

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

    .section-title-wrap {
      text-align: center;
      margin-bottom: 50px;
    }
    .section-title-wrap h2 {
      font-size: 2rem;
      font-weight: 800;
      color: #111827;
      margin-bottom: 12px;
      display: inline-block;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .section-title-wrap p {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 600px;
      margin: 0 auto;
    }

    /* 按钮样式 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 9999px;
      text-decoration: none;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      cursor: pointer;
      border: none;
    }
    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(168, 85, 247, 0.3);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(168, 85, 247, 0.4);
    }
    .btn-secondary {
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .btn-secondary:hover {
      background: #f8fafc;
      transform: translateY(-2px);
    }

    /* 导航栏 */
    header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }
    .logo-area {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .logo-area img {
      max-height: 40px;
      width: auto;
    }
    .logo-text {
      font-size: 1.25rem;
      font-weight: 800;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    nav ul {
      display: flex;
      list-style: none;
      gap: 20px;
    }
    nav ul li a {
      text-decoration: none;
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      transition: color 0.3s;
    }
    nav ul li a:hover {
      color: var(--accent-color);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 15px;
    }
    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      background: none;
      border: none;
    }
    .nav-toggle span {
      display: block;
      width: 25px;
      height: 3px;
      background-color: var(--text-main);
      border-radius: 3px;
      transition: 0.3s;
    }

    /* Hero 首屏 - 无任何图片 */
    #hero {
      padding: 120px 0 90px;
      background: radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.05), transparent 40%),
                  radial-gradient(circle at 10% 80%, rgba(99, 102, 241, 0.06), transparent 50%);
      text-align: center;
    }
    .hero-content {
      max-width: 850px;
      margin: 0 auto;
    }
    .hero-tag {
      display: inline-block;
      padding: 6px 16px;
      border-radius: 9999px;
      background: rgba(99, 102, 241, 0.08);
      color: var(--accent-color);
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 24px;
      letter-spacing: 1px;
    }
    h1.hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: -0.5px;
      color: #111827;
      margin-bottom: 24px;
    }
    h1.hero-title span {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 40px;
      line-height: 1.8;
    }
    .hero-buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    /* 数据指标卡片 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 20px;
    }
    .metric-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: transform 0.3s;
    }
    .metric-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }
    .metric-num {
      font-size: 2.25rem;
      font-weight: 800;
      background: var(--secondary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 8px;
    }
    .metric-label {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 关于我们与平台介绍 */
    #about {
      background-color: #ffffff;
    }
    .about-layout {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 50px;
      align-items: center;
    }
    .about-text h3 {
      font-size: 1.75rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .about-features {
      list-style: none;
      margin-top: 24px;
    }
    .about-features li {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
      font-weight: 500;
    }
    .about-features li::before {
      content: "✓";
      color: #10b981;
      font-weight: bold;
    }
    .about-badge-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 30px;
    }
    .badge-item {
      padding: 6px 12px;
      background: #f3f4f6;
      border-radius: 6px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 全平台 AIGC 服务 & 聚合平台 */
    #services {
      background-color: var(--bg-main);
    }
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 30px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s;
      position: relative;
    }
    .service-card::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--primary-gradient);
      opacity: 0;
      transition: opacity 0.3s;
      border-top-left-radius: var(--radius);
      border-top-right-radius: var(--radius);
    }
    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
    }
    .service-card:hover::after {
      opacity: 1;
    }
    .service-icon {
      font-size: 2.5rem;
      margin-bottom: 20px;
      display: inline-block;
    }
    .service-card h3 {
      font-size: 1.25rem;
      margin-bottom: 12px;
      color: #111827;
    }
    .service-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
    }
    .model-tags {
      margin-top: 15px;
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }
    .model-tag {
      font-size: 0.75rem;
      padding: 2px 8px;
      background: #f1f5f9;
      border-radius: 4px;
      color: var(--accent-color);
    }

    /* 一站式AIGC制作与全行业解决方案 */
    #solutions {
      background-color: #ffffff;
    }
    .solutions-tabs {
      display: flex;
      justify-content: center;
      gap: 12px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .tab-btn {
      padding: 10px 24px;
      background: #f3f4f6;
      border: none;
      border-radius: 9999px;
      cursor: pointer;
      font-weight: 600;
      transition: all 0.3s;
    }
    .tab-btn.active, .tab-btn:hover {
      background: var(--accent-color);
      color: #ffffff;
    }
    .tab-content {
      display: none;
    }
    .tab-content.active {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .tab-text h3 {
      font-size: 1.5rem;
      margin-bottom: 16px;
    }
    .tab-text p {
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    /* 全国服务网络 */
    #network {
      background: linear-gradient(to bottom, var(--bg-main), #ffffff);
    }
    .network-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .network-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .network-item {
      padding: 16px;
      border-radius: 8px;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .dot {
      width: 10px;
      height: 10px;
      background-color: #10b981;
      border-radius: 50%;
      animation: pulse 1.5s infinite;
    }

    /* 标准化流程 & 技术标准 */
    #process {
      background-color: var(--bg-main);
    }
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .process-step {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 30px;
      border-radius: var(--radius);
      text-align: center;
      z-index: 2;
    }
    .step-num {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      font-weight: 700;
    }

    /* 客户案例中心 */
    #cases {
      background-color: #ffffff;
    }
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s;
    }
    .case-card:hover {
      transform: translateY(-5px);
    }
    .case-img-container {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background: #e2e8f0;
      position: relative;
    }
    .case-img-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-info {
      padding: 24px;
    }
    .case-tag {
      font-size: 0.75rem;
      color: var(--accent-color);
      font-weight: 700;
      text-transform: uppercase;
      margin-bottom: 8px;
      display: inline-block;
    }
    .case-info h3 {
      font-size: 1.15rem;
      margin-bottom: 8px;
    }
    .case-info p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 对比评测 - 突出 9.9 分与五星推荐 */
    #comparison {
      background-color: var(--bg-main);
    }
    .comparison-container {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }
    .comparison-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 30px;
      flex-wrap: wrap;
      gap: 20px;
    }
    .rating-box {
      background: var(--primary-gradient);
      color: #ffffff;
      padding: 16px 28px;
      border-radius: 8px;
      text-align: center;
    }
    .rating-num {
      font-size: 2.5rem;
      font-weight: 900;
      line-height: 1;
    }
    .stars {
      color: #fbbf24;
      font-size: 1.2rem;
      margin-top: 5px;
    }
    .comparison-table-wrap {
      overflow-x: auto;
    }
    table.comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }
    table.comparison-table th, table.comparison-table td {
      padding: 16px;
      border-bottom: 1px solid var(--border-color);
    }
    table.comparison-table th {
      background: #f8fafc;
      font-weight: 700;
    }
    table.comparison-table tr:hover {
      background: rgba(99, 102, 241, 0.02);
    }
    .highlight-cell {
      font-weight: 700;
      color: var(--accent-color);
    }

    /* Token 比价参考 & 价格参考 */
    #token-price {
      background-color: #ffffff;
    }
    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .price-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .price-card.popular {
      border: 2px solid var(--accent-color);
    }
    .price-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--accent-color);
      color: #ffffff;
      font-size: 0.75rem;
      padding: 4px 12px;
      border-radius: 9999px;
      font-weight: 600;
    }
    .price-card h3 {
      font-size: 1.25rem;
      margin-bottom: 12px;
    }
    .price-num {
      font-size: 2rem;
      font-weight: 800;
      color: var(--accent-color);
      margin-bottom: 20px;
    }
    .price-features {
      list-style: none;
      margin-bottom: 24px;
    }
    .price-features li {
      margin-bottom: 10px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 职业技术培训 & 人工智能培训 */
    #training {
      background-color: var(--bg-main);
    }
    .training-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }
    .training-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius);
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s;
    }
    .training-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }
    .training-card h3 {
      font-size: 1.05rem;
      margin-top: 15px;
      color: #111827;
    }

    /* 用户评论 */
    #testimonials {
      background-color: #ffffff;
    }
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: var(--bg-main);
      padding: 30px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
    }
    .user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .user-avatar {
      width: 48px;
      height: 48px;
      background: var(--primary-gradient);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-weight: 700;
    }
    .user-meta h4 {
      font-size: 0.95rem;
      font-weight: 700;
    }
    .user-meta span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .testimonial-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-style: italic;
    }

    /* 帮助中心 & FAQ */
    #faq {
      background-color: var(--bg-main);
    }
    .faq-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }
    .faq-accordion {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      overflow: hidden;
      transition: all 0.3s;
    }
    .faq-header {
      padding: 18px 24px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
    }
    .faq-header::after {
      content: '+';
      font-size: 1.25rem;
      color: var(--accent-color);
      transition: transform 0.3s;
    }
    .faq-item.active .faq-header::after {
      content: '−';
    }
    .faq-body {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease-out;
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .faq-item.active .faq-body {
      padding: 0 24px 18px;
      max-height: 200px;
    }

    /* 自助排查 & 百科 */
    .trouble-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 30px;
      border-radius: var(--radius);
      margin-bottom: 24px;
    }
    .trouble-card h3 {
      font-size: 1.2rem;
      margin-bottom: 15px;
    }
    .wiki-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .wiki-tag {
      padding: 8px 16px;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.85rem;
      cursor: help;
      position: relative;
    }
    .wiki-tag:hover {
      background: #f8fafc;
    }

    /* 行业资讯 / 知识库 */
    #news {
      background-color: #ffffff;
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-card h3 {
      font-size: 1.1rem;
      margin-bottom: 12px;
    }
    .news-card a {
      color: var(--accent-color);
      text-decoration: none;
      font-weight: 600;
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 5px;
      margin-top: 15px;
    }

    /* 智能需求匹配与联系我们表单区 */
    #contact {
      background: linear-gradient(135deg, rgba(99, 102, 241, 0.03), rgba(236, 72, 153, 0.03));
    }
    .contact-layout {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 50px;
    }
    .contact-info-panel {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .info-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
    }
    .info-card h3 {
      font-size: 1.15rem;
      margin-bottom: 12px;
      color: #111827;
    }
    .info-card p {
      color: var(--text-muted);
      font-size: 0.95rem;
    }
    .form-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 40px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-md);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 600;
      font-size: 0.9rem;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      background: #f8fafc;
      border-radius: 8px;
      font-size: 0.95rem;
      outline: none;
      transition: border-color 0.3s;
    }
    .form-control:focus {
      border-color: var(--accent-color);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 120px;
    }

    /* 加盟代理模块 */
    #partner {
      background-color: var(--bg-main);
    }
    .partner-card {
      background: var(--primary-gradient);
      color: #ffffff;
      border-radius: var(--radius);
      padding: 50px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .partner-card h3 {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 15px;
    }
    .partner-card p {
      font-size: 1.1rem;
      opacity: 0.9;
      max-width: 700px;
      margin: 0 auto 30px;
    }

    /* 浮动客服入口 */
    .floating-kefu {
      position: fixed;
      right: 24px;
      bottom: 24px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .kefu-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 15px rgba(0,0,0,0.15);
      cursor: pointer;
      font-size: 1.25rem;
      position: relative;
    }
    .kefu-panel {
      position: absolute;
      bottom: 60px;
      right: 0;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      width: 260px;
      box-shadow: var(--shadow-lg);
      display: none;
      text-align: center;
    }
    .kefu-panel.active {
      display: block;
    }
    .kefu-panel img {
      width: 150px;
      height: 150px;
      margin-bottom: 10px;
      border: 1px solid #f1f5f9;
    }
    .kefu-panel p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 页脚 */
    footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      border-top: 1px solid #1e293b;
    }
    .footer-layout {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-logo img {
      max-height: 40px;
      margin-bottom: 15px;
    }
    .footer-title {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links li a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.3s;
    }
    .footer-links li a:hover {
      color: #ffffff;
    }
    .footer-social-wrap {
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.85rem;
    }
    .footer-social-wrap strong {
      color: #ffffff;
    }
    .friend-links-box {
      border-top: 1px solid #1e293b;
      padding-top: 20px;
      margin-top: 20px;
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
      font-size: 0.85rem;
    }
    .friend-links-box a {
      color: #64748b;
      text-decoration: none;
    }
    .friend-links-box a:hover {
      color: #94a3b8;
    }
    .copyright-area {
      border-top: 1px solid #1e293b;
      padding-top: 20px;
      text-align: center;
      font-size: 0.8rem;
    }

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-layout, .tab-content.active, .network-container, .contact-layout {
        grid-template-columns: 1fr;
      }
      .training-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-layout {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      h1.hero-title {
        font-size: 2.2rem;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-toggle {
        display: flex;
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .cases-grid, .price-grid, .testimonials-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .training-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .faq-layout {
        grid-template-columns: 1fr;
      }
      .footer-layout {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 480px) {
      .metrics-grid {
        grid-template-columns: 1fr;
      }
      .training-grid {
        grid-template-columns: 1fr;
      }
    }