/* 基础重置与渐变青科技风主题定义 */
    :root {
      --primary-gradient: linear-gradient(135deg, #0d9488 0%, #06b6d4 50%, #22d3ee 100%);
      --text-main: #0f172a;
      --text-sub: #475569;
      --text-muted: #64748b;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-accent: #f0fdfa;
      --border-color: #e2e8f0;
      --cyan-light: #ecfeff;
      --cyan-primary: #0891b2;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
      --transition-base: 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;
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    /* 辅助样式 */
    .section-padding {
      padding: 80px 0;
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      text-align: center;
      margin-bottom: 16px;
      color: #0f172a;
      position: relative;
    }
    .section-title span {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .section-subtitle {
      font-size: 1.125rem;
      color: var(--text-sub);
      text-align: center;
      max-width: 700px;
      margin: 0 auto 50px auto;
    }

    /* 按钮 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      border-radius: 8px;
      font-weight: 600;
      font-size: 1rem;
      transition: var(--transition-base);
      cursor: pointer;
      text-decoration: none;
      border: 1px solid transparent;
    }
    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(6, 182, 212, 0.4);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(6, 182, 212, 0.6);
    }
    .btn-secondary {
      background-color: #ffffff;
      color: var(--cyan-primary);
      border-color: var(--border-color);
    }
    .btn-secondary:hover {
      background-color: #f1f5f9;
      transform: translateY(-2px);
    }

    /* 顶部导航 */
    header {
      background-color: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      height: 72px;
      display: flex;
      align-items: center;
      transition: var(--transition-base);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }
    .logo-area {
      display: flex;
      align-items: center;
      height: 48px;
    }
    .logo-area img {
      max-height: 40px;
      width: auto;
      object-fit: contain;
    }
    .nav-links {
      display: flex;
      gap: 20px;
      align-items: center;
    }
    .nav-links a {
      color: var(--text-sub);
      text-decoration: none;
      font-size: 0.95rem;
      font-weight: 500;
      transition: var(--transition-base);
      padding: 6px 10px;
      border-radius: 6px;
    }
    .nav-links a:hover {
      color: var(--cyan-primary);
      background-color: var(--cyan-light);
    }
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      border: none;
      background: transparent;
      padding: 4px;
    }
    .hamburger span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--text-main);
      transition: var(--transition-base);
    }

    /* 首页 Hero 首屏（无图设计） */
    .hero-section {
      padding-top: 140px;
      padding-bottom: 80px;
      background: radial-gradient(circle at 80% 20%, #e0f2fe 0%, #f0fdfa 50%, var(--bg-main) 100%);
      position: relative;
      overflow: hidden;
    }
    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
      position: relative;
      z-index: 10;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      background-color: var(--cyan-light);
      border: 1px solid rgba(8, 145, 178, 0.2);
      border-radius: 100px;
      color: var(--cyan-primary);
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 24px;
      animation: floatBadge 3s ease-in-out infinite;
    }
    .hero-h1 {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.25;
      color: #0f172a;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-h1 span {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }
    .hero-p {
      font-size: 1.25rem;
      color: var(--text-sub);
      margin-bottom: 36px;
      line-height: 1.6;
    }
    .hero-btns {
      display: flex;
      gap: 16px;
      justify-content: center;
      margin-bottom: 48px;
    }
    .hero-decorations {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
      z-index: 1;
    }
    .hero-circle {
      position: absolute;
      border-radius: 50%;
      background: var(--primary-gradient);
      filter: blur(80px);
      opacity: 0.08;
    }
    .hc-1 { width: 300px; height: 300px; top: 10%; left: 10%; }
    .hc-2 { width: 400px; height: 400px; bottom: 10%; right: 5%; }

    /* 数据指标卡片 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }
    .metric-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px 20px;
      text-align: center;
      transition: var(--transition-base);
      box-shadow: var(--shadow-sm);
    }
    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #22d3ee;
    }
    .metric-number {
      font-size: 2.25rem;
      font-weight: 800;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 8px;
    }
    .metric-label {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 平台介绍 & 关于我们 */
    .about-section {
      background-color: var(--bg-card);
    }
    .about-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .about-text h3 {
      font-size: 1.75rem;
      color: var(--text-main);
      margin-bottom: 20px;
      font-weight: 700;
    }
    .about-text p {
      color: var(--text-sub);
      margin-bottom: 20px;
      font-size: 1.05rem;
      line-height: 1.7;
    }
    .feature-bullets {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }
    .bullet-item {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--text-main);
      font-weight: 600;
    }
    .bullet-icon {
      color: var(--cyan-primary);
      font-weight: 900;
    }
    .about-visual {
      background: linear-gradient(135deg, var(--cyan-light) 0%, #ccfbf1 100%);
      border-radius: 20px;
      padding: 40px;
      border: 1px solid var(--border-color);
      position: relative;
    }
    .core-advantage-card {
      background: #ffffff;
      padding: 24px;
      border-radius: 12px;
      box-shadow: var(--shadow-md);
      border-left: 4px solid var(--cyan-primary);
    }
    .cac-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--cyan-primary);
      margin-bottom: 8px;
    }
    .cac-desc {
      font-size: 0.95rem;
      color: var(--text-sub);
    }

    /* 全平台 AIGC 服务 */
    .service-section {
      background-color: var(--bg-main);
    }
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .service-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 32px;
      transition: var(--transition-base);
      position: relative;
      overflow: hidden;
    }
    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--primary-gradient);
      opacity: 0;
      transition: var(--transition-base);
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }
    .service-card:hover::before {
      opacity: 1;
    }
    .service-icon {
      width: 48px;
      height: 48px;
      background: var(--cyan-light);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 24px;
      color: var(--cyan-primary);
      font-size: 1.5rem;
    }
    .service-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .service-desc {
      color: var(--text-sub);
      font-size: 0.95rem;
      margin-bottom: 16px;
    }
    .service-tag {
      display: inline-block;
      padding: 4px 8px;
      background-color: var(--bg-main);
      color: var(--text-muted);
      font-size: 0.8rem;
      border-radius: 4px;
      font-weight: 500;
    }

    /* 模型墙 */
    .models-marquee-container {
      margin-top: 50px;
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      overflow: hidden;
    }
    .models-marquee-title {
      text-align: center;
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-sub);
      margin-bottom: 16px;
    }
    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }
    .model-tag {
      background-color: var(--bg-main);
      color: var(--text-main);
      padding: 6px 14px;
      border-radius: 6px;
      font-size: 0.9rem;
      font-weight: 500;
      border: 1px solid var(--border-color);
      transition: var(--transition-base);
    }
    .model-tag:hover {
      background-color: var(--cyan-light);
      color: var(--cyan-primary);
      border-color: var(--cyan-primary);
    }

    /* 一站式AIGC制作 & 解决方案 */
    .creation-section {
      background-color: var(--bg-card);
    }
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }
    .solution-card {
      background: var(--bg-accent);
      border: 1px solid rgba(8, 145, 178, 0.1);
      border-radius: 16px;
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .solution-header h4 {
      font-size: 1.4rem;
      color: var(--text-main);
      margin-bottom: 12px;
      font-weight: 700;
    }
    .solution-desc {
      color: var(--text-sub);
      font-size: 0.95rem;
      margin-bottom: 20px;
    }
    .solution-features {
      list-style: none;
      margin-bottom: 24px;
    }
    .solution-features li {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .solution-features li::before {
      content: "✓";
      color: #0d9488;
      font-weight: bold;
    }

    /* 全国服务网络 & 时间线 */
    .network-section {
      background-color: var(--bg-main);
    }
    .network-grid {
      display: grid;
      grid-template-columns: 1fr 2fr;
      gap: 40px;
      align-items: center;
    }
    .network-info {
      padding-right: 20px;
    }
    .network-info h3 {
      font-size: 1.75rem;
      margin-bottom: 16px;
      font-weight: 700;
    }
    .network-info p {
      color: var(--text-sub);
      margin-bottom: 24px;
    }
    .timeline {
      border-left: 2px solid var(--border-color);
      padding-left: 30px;
      margin-left: 10px;
      position: relative;
    }
    .timeline-item {
      position: relative;
      margin-bottom: 30px;
    }
    .timeline-item::before {
      content: '';
      position: absolute;
      left: -41px;
      top: 4px;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--bg-card);
      border: 4px solid var(--cyan-primary);
    }
    .timeline-time {
      font-weight: 700;
      color: var(--cyan-primary);
      margin-bottom: 4px;
      font-size: 0.9rem;
    }
    .timeline-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .timeline-desc {
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    /* 标准化AIGC流程 */
    .process-section {
      background-color: var(--bg-card);
    }
    .process-steps {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 15px;
      position: relative;
    }
    .process-step {
      background-color: var(--bg-main);
      padding: 24px 16px;
      border-radius: 12px;
      text-align: center;
      position: relative;
      transition: var(--transition-base);
      border: 1px solid var(--border-color);
    }
    .process-step:hover {
      transform: translateY(-4px);
      border-color: var(--cyan-primary);
      background-color: var(--cyan-light);
    }
    .step-num {
      width: 36px;
      height: 36px;
      background: var(--primary-gradient);
      color: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px auto;
      font-weight: 700;
      font-size: 0.95rem;
    }
    .step-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 技术标准 & 对比评测 */
    .eval-section {
      background-color: var(--bg-main);
    }
    .eval-score-card {
      background: var(--primary-gradient);
      color: #ffffff;
      border-radius: 20px;
      padding: 40px;
      text-align: center;
      margin-bottom: 40px;
      box-shadow: var(--shadow-lg);
    }
    .eval-score-num {
      font-size: 4rem;
      font-weight: 900;
      line-height: 1;
      margin-bottom: 12px;
    }
    .eval-stars {
      color: #fbbf24;
      font-size: 1.75rem;
      margin-bottom: 8px;
    }
    .eval-score-label {
      font-size: 1.1rem;
      opacity: 0.9;
    }
    .table-container {
      width: 100%;
      overflow-x: auto;
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      box-shadow: var(--shadow-sm);
    }
    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }
    .comparison-table th, .comparison-table td {
      padding: 16px 24px;
      border-bottom: 1px solid var(--border-color);
    }
    .comparison-table th {
      background-color: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }
    .comparison-table tr:last-child td {
      border-bottom: none;
    }
    .highlight-cell {
      background-color: var(--cyan-light);
      font-weight: 600;
      color: var(--cyan-primary);
    }

    /* Token 比价参考 */
    .price-section {
      background-color: var(--bg-card);
    }
    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .price-card {
      background-color: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 30px;
      text-align: center;
      transition: var(--transition-base);
    }
    .price-card.popular {
      background-color: var(--cyan-light);
      border-color: var(--cyan-primary);
      position: relative;
    }
    .popular-tag {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary-gradient);
      color: white;
      padding: 4px 12px;
      font-size: 0.8rem;
      border-radius: 20px;
      font-weight: 700;
    }
    .price-header h4 {
      font-size: 1.25rem;
      margin-bottom: 8px;
    }
    .price-amount {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--text-main);
      margin: 16px 0;
    }
    .price-amount span {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: normal;
    }
    .price-features {
      list-style: none;
      margin: 24px 0;
      text-align: left;
    }
    .price-features li {
      margin-bottom: 12px;
      color: var(--text-sub);
      font-size: 0.9rem;
    }
    .price-features li::before {
      content: "•";
      color: var(--cyan-primary);
      margin-right: 8px;
      font-weight: bold;
    }

    /* 职业与人工智能培训 */
    .training-section {
      background-color: var(--bg-main);
    }
    .training-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .training-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 28px;
      transition: var(--transition-base);
    }
    .training-card:hover {
      box-shadow: var(--shadow-lg);
      border-color: var(--cyan-primary);
    }
    .training-badge {
      display: inline-block;
      padding: 4px 10px;
      background: #e0f2fe;
      color: #0369a1;
      font-size: 0.8rem;
      border-radius: 4px;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .training-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .training-desc {
      font-size: 0.9rem;
      color: var(--text-sub);
      margin-bottom: 16px;
    }
    .training-meta {
      font-size: 0.8rem;
      color: var(--text-muted);
      border-top: 1px solid var(--border-color);
      padding-top: 12px;
    }

    /* 客户案例中心 */
    .cases-section {
      background-color: var(--bg-card);
    }
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }
    .case-card {
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .case-img-wrap {
      width: 100%;
      height: 240px;
      overflow: hidden;
      position: relative;
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition-base);
    }
    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }
    .case-body {
      padding: 24px;
    }
    .case-tag {
      color: var(--cyan-primary);
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      margin-bottom: 8px;
      display: inline-block;
    }
    .case-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .case-desc {
      color: var(--text-sub);
      font-size: 0.9rem;
      margin-bottom: 16px;
    }
    .case-result {
      font-size: 0.85rem;
      font-weight: 600;
      color: #0d9488;
      background: var(--cyan-light);
      padding: 8px 12px;
      border-radius: 6px;
      display: inline-block;
    }

    /* 客户评论卡片 */
    .comments-section {
      background-color: var(--bg-main);
    }
    .comments-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .comment-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .comment-body {
      font-size: 0.95rem;
      color: var(--text-sub);
      margin-bottom: 20px;
      font-style: italic;
    }
    .comment-user {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .user-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }
    .user-info-name {
      font-weight: 700;
      font-size: 0.9rem;
      color: var(--text-main);
    }
    .user-info-title {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 智能需求匹配 (表单) & 加盟代理 */
    .match-section {
      background-color: var(--bg-card);
    }
    .match-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: flex-start;
    }
    .agent-info-card {
      background: var(--bg-accent);
      border: 1px solid rgba(8, 145, 178, 0.15);
      border-radius: 16px;
      padding: 36px;
    }
    .agent-badge {
      display: inline-block;
      padding: 4px 10px;
      background: var(--cyan-light);
      color: var(--cyan-primary);
      font-size: 0.85rem;
      border-radius: 4px;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .agent-title {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .agent-list {
      list-style: none;
      margin-bottom: 24px;
    }
    .agent-list li {
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--text-sub);
    }
    .agent-list li::before {
      content: "★";
      color: var(--cyan-primary);
    }
    .form-wrapper {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 36px;
      box-shadow: var(--shadow-md);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-label {
      display: block;
      font-weight: 600;
      margin-bottom: 8px;
      font-size: 0.9rem;
      color: var(--text-main);
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      color: var(--text-main);
      background-color: #f8fafc;
      transition: var(--transition-base);
    }
    .form-control:focus {
      outline: none;
      border-color: var(--cyan-primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
    }

    /* 帮助中心 & 自助排查 & 术语百科 & FAQ */
    .faq-section {
      background-color: var(--bg-main);
    }
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }
    .faq-col {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 10px;
      overflow: hidden;
      transition: var(--transition-base);
    }
    .faq-header {
      padding: 20px 24px;
      font-weight: 700;
      font-size: 1rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
      background-color: var(--bg-card);
    }
    .faq-header::after {
      content: '+';
      font-size: 1.25rem;
      color: var(--cyan-primary);
      transition: var(--transition-base);
    }
    .faq-item.active .faq-header::after {
      content: '-';
      transform: rotate(180deg);
    }
    .faq-body {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      font-size: 0.95rem;
      color: var(--text-sub);
      background-color: var(--cyan-light);
    }
    .faq-item.active .faq-body {
      padding: 20px 24px;
    }
    
    /* 术语百科 & 自助排查 */
    .wiki-trouble-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      margin-top: 40px;
    }
    .wiki-card, .trouble-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
    }
    .wiki-card h4, .trouble-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 16px;
      border-bottom: 2px solid var(--cyan-light);
      padding-bottom: 8px;
    }
    .item-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .item-list-row {
      display: flex;
      flex-direction: column;
    }
    .item-list-key {
      font-weight: 700;
      font-size: 0.9rem;
      color: var(--cyan-primary);
    }
    .item-list-val {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* 行业资讯 / 知识库 (最新文章) */
    .blog-section {
      background-color: var(--bg-card);
    }
    .blog-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .blog-card {
      background-color: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition-base);
    }
    .blog-card:hover {
      transform: translateY(-4px);
      border-color: var(--cyan-primary);
    }
    .blog-tag {
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--cyan-primary);
      margin-bottom: 8px;
    }
    .blog-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .blog-desc {
      font-size: 0.85rem;
      color: var(--text-sub);
      margin-bottom: 20px;
    }
    .blog-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .blog-link {
      color: var(--cyan-primary);
      text-decoration: none;
      font-weight: 600;
    }

    /* 联系我们 & 底部 (Footer) */
    footer {
      background-color: #0f172a;
      color: #e2e8f0;
      padding-top: 60px;
      padding-bottom: 30px;
      border-top: 4px solid var(--cyan-primary);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h5 {
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-col p {
      font-size: 0.9rem;
      line-height: 1.7;
      color: #94a3b8;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.9rem;
      transition: var(--transition-base);
    }
    .footer-links a:hover {
      color: #22d3ee;
      padding-left: 4px;
    }
    .qrcode-area {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .qrcode-img-wrap {
      width: 100px;
      height: 100px;
      background: #ffffff;
      padding: 6px;
      border-radius: 8px;
    }
    .qrcode-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .social-info {
      font-size: 0.85rem;
      color: #94a3b8;
    }
    .friend-links {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-top: 24px;
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
      align-items: center;
      font-size: 0.85rem;
    }
    .friend-links span {
      color: #64748b;
      font-weight: 700;
    }
    .friend-links a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition-base);
    }
    .friend-links a:hover {
      color: #22d3ee;
    }
    .copyright-area {
      border-top: 1px solid #1e293b;
      padding-top: 20px;
      margin-top: 20px;
      text-align: center;
      font-size: 0.8rem;
      color: #64748b;
    }

    /* 浮动客服入口 */
    .float-panel {
      position: fixed;
      right: 20px;
      bottom: 80px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }
    .float-item {
      width: 48px;
      height: 48px;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      position: relative;
      transition: var(--transition-base);
    }
    .float-item:hover {
      transform: scale(1.08);
      background-color: var(--cyan-light);
    }
    .float-item-icon {
      font-size: 1.25rem;
      color: var(--cyan-primary);
    }
    .float-qrcode-pop {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 16px;
      box-shadow: var(--shadow-lg);
      display: none;
      flex-direction: column;
      align-items: center;
      width: 140px;
    }
    .float-item:hover .float-qrcode-pop {
      display: flex;
    }
    .float-qrcode-pop img {
      width: 100px;
      height: 100px;
      margin-bottom: 8px;
    }
    .float-qrcode-pop span {
      font-size: 0.8rem;
      color: var(--text-main);
      font-weight: 700;
    }

    @keyframes floatBadge {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-4px); }
    }

    /* 响应式样式 */
    @media (max-width: 1024px) {
      .services-grid, .price-grid, .training-grid, .comments-grid, .blog-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps {
        grid-template-columns: repeat(3, 1fr);
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background-color: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        gap: 16px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .hamburger {
        display: flex;
      }
      .hero-h1 {
        font-size: 2rem;
      }
      .about-wrapper, .network-grid, .match-grid, .faq-grid, .wiki-trouble-grid, .cases-grid {
        grid-template-columns: 1fr;
      }
      .about-visual {
        order: -1;
      }
      .services-grid, .price-grid, .training-grid, .comments-grid, .blog-grid {
        grid-template-columns: 1fr;
      }
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-btns {
        flex-direction: column;
        align-items: center;
      }
      .hero-btns .btn {
        width: 100%;
        max-width: 280px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }