:root {
      --rainbow-1: #ff4b4b;
      --rainbow-2: #ff8c00;
      --rainbow-3: #ffcd00;
      --rainbow-4: #00c48c;
      --rainbow-5: #0099ff;
      --rainbow-6: #7952ff;
      --rainbow-gradient: linear-gradient(135deg, #ff4b4b, #ff8c00, #ffcd00, #00c48c, #0099ff, #7952ff);
      --rainbow-subtle: linear-gradient(135deg, rgba(255,75,75,0.06), rgba(255,140,0,0.06), rgba(0,196,140,0.06), rgba(0,153,255,0.06), rgba(121,82,255,0.06));
      --primary-color: #0066ff;
      --primary-hover: #0052cc;
      --bg-page: #f8faff;
      --bg-card: #ffffff;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --text-light: #94a3b8;
      --border-color: #e2e8f0;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 35px -10px rgba(0, 102, 255, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

    * {
      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", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      background: var(--rainbow-subtle);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部彩虹条 */
    .rainbow-bar {
      height: 4px;
      background: var(--rainbow-gradient);
      width: 100%;
    }

    /* 导航栏 */
    .site-header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
    }

    .brand-title {
      font-size: 20px;
      font-weight: 800;
      background: var(--rainbow-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      text-decoration: none;
      color: var(--text-main);
      font-size: 14px;
      font-weight: 500;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      transition: all 0.25s ease;
      display: inline-block;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary-color);
      background: rgba(0, 102, 255, 0.06);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn-header {
      padding: 8px 18px;
      font-size: 14px;
      font-weight: 600;
      border-radius: 50px;
      text-decoration: none;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      cursor: pointer;
    }

    .btn-rainbow {
      background: var(--rainbow-gradient);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(255, 75, 75, 0.25);
    }

    .btn-rainbow:hover {
      opacity: 0.92;
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(255, 75, 75, 0.35);
    }

    .btn-outline {
      border-color: #cbd5e1;
      color: var(--text-main);
      background: #ffffff;
    }

    .btn-outline:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      background: rgba(0, 102, 255, 0.04);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      font-size: 24px;
      color: var(--text-main);
    }

    /* 模块通用样式 */
    section {
      padding: 72px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 48px;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary-color);
      background: rgba(0, 102, 255, 0.08);
      border-radius: 50px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 首屏 Hero 区域（无图片） */
    .hero-section {
      padding: 90px 0 70px;
      text-align: center;
      background: radial-gradient(circle at 50% 30%, rgba(255, 140, 0, 0.08) 0%, rgba(0, 153, 255, 0.05) 50%, rgba(248, 250, 255, 0) 100%);
    }

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid rgba(255, 140, 0, 0.3);
      border-radius: 50px;
      font-size: 13px;
      font-weight: 600;
      color: #ea580c;
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-pill-dot {
      width: 8px;
      height: 8px;
      background: #22c55e;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
    }

    .hero-title {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.25;
      color: #0f172a;
      max-width: 900px;
      margin: 0 auto 20px;
      letter-spacing: -1px;
    }

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

    .hero-subtitle {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto 36px;
      line-height: 1.8;
    }

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

    .btn-hero-primary {
      padding: 16px 36px;
      font-size: 18px;
      font-weight: 700;
      border-radius: 50px;
      background: var(--rainbow-gradient);
      color: #ffffff;
      text-decoration: none;
      box-shadow: 0 10px 25px rgba(255, 75, 75, 0.3);
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(255, 75, 75, 0.4);
    }

    .btn-hero-secondary {
      padding: 16px 32px;
      font-size: 16px;
      font-weight: 600;
      border-radius: 50px;
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      text-decoration: none;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

    .btn-hero-secondary:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }

    /* 核心数据卡片 */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .stat-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .stat-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--rainbow-gradient);
    }

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

    .stat-value {
      font-size: 32px;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 4px;
    }

    .stat-value span {
      color: #ff8c00;
      font-size: 22px;
    }

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

    /* 平台支持模型跑马灯标签 */
    .models-marquee-wrapper {
      margin-top: 48px;
      padding: 20px 0;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
    }

    .models-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-light);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 14px;
    }

    .models-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      padding: 0 16px;
    }

    .model-chip {
      background: #f1f5f9;
      color: #334155;
      font-size: 12px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 50px;
      border: 1px solid #e2e8f0;
      transition: all 0.2s ease;
    }

    .model-chip:hover {
      background: #ffffff;
      border-color: var(--primary-color);
      color: var(--primary-color);
      transform: translateY(-1px);
    }

    /* 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-content h3 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 16px;
      color: #0f172a;
    }

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

    .feature-list {
      list-style: none;
      display: grid;
      gap: 14px;
    }

    .feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 15px;
      color: var(--text-main);
    }

    .feature-dot {
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: rgba(0, 196, 140, 0.15);
      color: #00c48c;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: bold;
      flex-shrink: 0;
      margin-top: 3px;
    }

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

    .about-card-panel::after {
      content: "";
      position: absolute;
      inset: -2px;
      background: var(--rainbow-gradient);
      border-radius: inherit;
      z-index: -1;
      opacity: 0.3;
    }

    .about-media-box img {
      width: 100%;
      border-radius: var(--radius-md);
      margin-top: 20px;
      box-shadow: var(--shadow-sm);
    }

    /* 服务能力卡片网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      padding: 28px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(0, 102, 255, 0.3);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--rainbow-subtle);
      border: 1px solid rgba(0, 102, 255, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 18px;
      color: var(--primary-color);
    }

    .service-title {
      font-size: 18px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 10px;
    }

    .service-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }

    .service-tag {
      font-size: 12px;
      font-weight: 600;
      color: #0099ff;
      background: rgba(0, 153, 255, 0.08);
      padding: 4px 10px;
      border-radius: 4px;
      align-self: flex-start;
    }

    /* 行业方案展示 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .solution-item {
      background: #ffffff;
      padding: 30px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      display: flex;
      gap: 20px;
      transition: all 0.3s ease;
    }

    .solution-item:hover {
      border-color: #ff8c00;
      box-shadow: var(--shadow-md);
    }

    .solution-badge {
      width: 42px;
      height: 42px;
      background: #fff7ed;
      color: #ea580c;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      flex-shrink: 0;
    }

    .solution-body h4 {
      font-size: 17px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

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

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

    .step-card {
      background: #ffffff;
      padding: 26px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      text-align: center;
      position: relative;
    }

    .step-number {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--rainbow-gradient);
      color: #ffffff;
      font-size: 16px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
    }

    .step-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #0f172a;
    }

    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 案例中心展示 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .case-img-wrap {
      width: 100%;
      height: 190px;
      overflow: hidden;
      background: #f1f5f9;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

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

    .case-content {
      padding: 20px;
    }

    .case-cat {
      font-size: 12px;
      color: #7952ff;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .case-name {
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测板块 */
    .eval-section-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .score-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, #0f172a, #1e293b);
      color: #ffffff;
      padding: 24px 32px;
      border-radius: var(--radius-md);
      margin-bottom: 32px;
    }

    .score-left h4 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .score-left p {
      font-size: 14px;
      color: #94a3b8;
    }

    .score-right {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .rating-stars {
      color: #fbbf24;
      font-size: 20px;
      letter-spacing: 2px;
    }

    .rating-score {
      font-size: 38px;
      font-weight: 900;
      color: #ffffff;
    }

    .rating-score small {
      font-size: 16px;
      color: #94a3b8;
      font-weight: 400;
    }

    .table-container {
      overflow-x: auto;
    }

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

    .custom-table th,
    .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .custom-table th {
      background: #f8fafc;
      font-weight: 700;
      color: #334155;
    }

    .custom-table tr:hover td {
      background: #f8fafc;
    }

    .highlight-col {
      background: rgba(0, 102, 255, 0.03);
      font-weight: 600;
      color: var(--primary-color);
    }

    /* Token 比价与算力收益 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }

    .token-card.popular {
      border: 2px solid #0099ff;
    }

    .token-card.popular::before {
      content: "热选推荐";
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--rainbow-gradient);
      color: #ffffff;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 50px;
    }

    .token-header h4 {
      font-size: 18px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .token-price {
      font-size: 32px;
      font-weight: 800;
      color: #0f172a;
      margin: 16px 0;
    }

    .token-price span {
      font-size: 14px;
      font-weight: 400;
      color: var(--text-muted);
    }

    .token-features {
      list-style: none;
      margin-bottom: 24px;
      display: grid;
      gap: 10px;
      font-size: 14px;
      color: #475569;
    }

    /* 客户真实评价 (6条) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      padding: 26px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: #f59e0b;
      margin-bottom: 12px;
      font-size: 14px;
    }

    .review-text {
      font-size: 14px;
      color: #334155;
      line-height: 1.65;
      margin-bottom: 18px;
      font-style: italic;
    }

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

    .avatar-placeholder {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--rainbow-subtle);
      border: 1px solid #cbd5e1;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary-color);
      font-size: 15px;
    }

    .user-info h5 {
      font-size: 14px;
      font-weight: 700;
      color: #0f172a;
    }

    .user-info span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 常见问题 FAQ 折叠面板 (10+条) */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
      display: grid;
      gap: 14px;
    }

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

    .faq-question {
      padding: 18px 24px;
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      transition: background-color 0.2s ease;
    }

    .faq-question:hover {
      background: #f8fafc;
    }

    .faq-icon {
      font-size: 18px;
      font-weight: 400;
      transition: transform 0.3s ease;
      color: var(--primary-color);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 24px;
      background: #ffffff;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      padding: 0 24px 20px;
      max-height: 300px;
    }

    /* 需求匹配与联系我们（表单区） */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .contact-info-panel h3 {
      font-size: 24px;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 14px;
    }

    .contact-info-panel p {
      color: var(--text-muted);
      font-size: 14px;
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .contact-details {
      list-style: none;
      display: grid;
      gap: 14px;
      margin-bottom: 24px;
    }

    .contact-details li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #334155;
    }

    .qr-card {
      background: #f8fafc;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      display: inline-flex;
      align-items: center;
      gap: 16px;
    }

    .qr-card img {
      width: 90px;
      height: 90px;
      border-radius: 6px;
      display: block;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: #334155;
      margin-bottom: 6px;
    }

    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      font-size: 14px;
      color: var(--text-main);
      background: #f8fafc;
      outline: none;
      transition: all 0.25s ease;
      font-family: inherit;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      border-color: var(--primary-color);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
    }

    .btn-submit {
      width: 100%;
      padding: 14px;
      font-size: 16px;
      font-weight: 700;
      border: none;
      border-radius: var(--radius-sm);
      background: var(--rainbow-gradient);
      color: #ffffff;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(255, 75, 75, 0.25);
      transition: all 0.25s ease;
    }

    .btn-submit:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }

    /* 资讯与百科文章模块 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .article-item {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-item:hover {
      border-color: var(--primary-color);
      transform: translateY(-3px);
      box-shadow: var(--shadow-sm);
    }

    .article-item h4 {
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 10px;
      line-height: 1.5;
    }

    .article-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .article-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-color);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .article-link:hover {
      text-decoration: underline;
    }

    /* 友情链接 */
    .links-section {
      background: #ffffff;
      padding: 36px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .links-title {
      font-size: 14px;
      font-weight: 700;
      color: #64748b;
      margin-bottom: 16px;
    }

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

    .links-wrapper a {
      font-size: 13px;
      color: #475569;
      text-decoration: none;
      padding: 6px 14px;
      background: #f1f5f9;
      border-radius: 4px;
      transition: all 0.2s ease;
    }

    .links-wrapper a:hover {
      background: rgba(0, 102, 255, 0.08);
      color: var(--primary-color);
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      padding: 48px 0 32px;
      color: #64748b;
      font-size: 13px;
      margin-top: auto;
    }

    .footer-inner {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 36px;
    }

    .footer-brand p {
      margin-top: 12px;
      line-height: 1.7;
      max-width: 320px;
    }

    .footer-col h5 {
      font-size: 14px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 16px;
    }

    .footer-nav {
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .footer-nav a {
      color: #64748b;
      text-decoration: none;
      transition: color 0.2s ease;
    }

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

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      text-align: center;
      color: #94a3b8;
    }

    /* 浮动客服挂件与返回顶部 */
    .floating-tools {
      position: fixed;
      right: 24px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      text-decoration: none;
      color: #334155;
      font-size: 20px;
      transition: all 0.25s ease;
    }

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

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .hero-stats-grid,
      .services-grid,
      .steps-timeline,
      .cases-grid,
      .token-grid,
      .reviews-grid,
      .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-inner {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li a {
        width: 100%;
        padding: 12px 16px;
      }
      .hero-title {
        font-size: 28px;
      }
      .hero-subtitle {
        font-size: 15px;
      }
      .hero-stats-grid,
      .about-grid,
      .services-grid,
      .solutions-grid,
      .steps-timeline,
      .cases-grid,
      .token-grid,
      .reviews-grid,
      .contact-grid,
      .articles-grid,
      .footer-inner {
        grid-template-columns: 1fr;
      }
      .score-banner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
      }
      .eval-section-box,
      .contact-grid {
        padding: 24px 16px;
      }
      section {
        padding: 48px 0;
      }
    }