:root {
      --primary: #f95721;
      --primary-dark: #d84315;
      --primary-light: #fff2ed;
      --primary-glow: rgba(249, 87, 33, 0.15);
      --accent-warm: #ff8c42;
      --accent-amber: #f59e0b;
      --bg-main: #fcfbf9;
      --bg-card: #ffffff;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --border-color: #f1e7e0;
      --border-highlight: #fed7aa;
      --shadow-sm: 0 2px 6px rgba(249, 87, 33, 0.04);
      --shadow-md: 0 8px 24px rgba(249, 87, 33, 0.08);
      --shadow-lg: 0 16px 36px rgba(249, 87, 33, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .site-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      width: 100%;
    }

    .section-wrap {
      padding: 80px 0;
      position: relative;
    }

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

    .section-tag {
      display: inline-block;
      padding: 5px 14px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-dark);
      background-color: var(--primary-light);
      border: 1px solid var(--border-highlight);
      border-radius: 30px;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 700px;
      margin: 0 auto;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

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

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-logo-wrap {
      width: 130px;
      display: flex;
      align-items: center;
    }

    .ai-page-logo {
      max-height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-text-sub {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      padding-left: 8px;
      border-left: 1px solid var(--border-highlight);
      white-space: nowrap;
    }

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

    .nav-links li a {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      padding: 8px 14px;
      border-radius: 6px;
      transition: var(--transition);
      display: block;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background-color: var(--primary-light);
    }

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

    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--accent-warm), var(--primary));
      color: #ffffff !important;
      font-size: 14px;
      font-weight: 600;
      padding: 9px 20px;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(249, 87, 33, 0.25);
      transition: var(--transition);
    }

    .btn-portal:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(249, 87, 33, 0.35);
    }

    .mobile-menu-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--border-color);
      padding: 6px 10px;
      border-radius: 6px;
      cursor: pointer;
    }

    .mobile-menu-toggle svg {
      display: block;
      width: 22px;
      height: 22px;
      fill: var(--text-main);
    }

    /* 首屏 Hero 区域 (绝无图片，亮橙炽艳质感) */
    .hero-section {
      background: radial-gradient(circle at 50% 10%, #fff7ed 0%, #fcfbf9 75%);
      padding: 90px 0 70px;
      text-align: center;
      position: relative;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid var(--border-highlight);
      border-radius: 30px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-dark);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-pulse {
      width: 8px;
      height: 8px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 0 0 rgba(249, 87, 33, 0.6);
      animation: heroDotPulse 1.8s infinite;
    }

    @keyframes heroDotPulse {
      0% { box-shadow: 0 0 0 0 rgba(249, 87, 33, 0.6); }
      70% { box-shadow: 0 0 0 8px rgba(249, 87, 33, 0); }
      100% { box-shadow: 0 0 0 0 rgba(249, 87, 33, 0); }
    }

    .hero-title {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      max-width: 900px;
      margin: 0 auto 20px;
      letter-spacing: -0.8px;
    }

    .hero-title span {
      background: linear-gradient(135deg, #ea580c 0%, #f95721 50%, #f59e0b 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .btn-main-action {
      background: linear-gradient(135deg, #ff6b35 0%, #f95721 100%);
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      padding: 14px 34px;
      border-radius: 10px;
      box-shadow: 0 8px 24px rgba(249, 87, 33, 0.3);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
    }

    .btn-main-action:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(249, 87, 33, 0.4);
    }

    .btn-outline-action {
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      font-size: 16px;
      font-weight: 600;
      padding: 14px 28px;
      border-radius: 10px;
      transition: var(--transition);
    }

    .btn-outline-action:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-light);
    }

    /* 纯CSS首屏指标看板，无图片 */
    .hero-metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 22px 18px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      text-align: left;
    }

    .metric-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-highlight);
      box-shadow: var(--shadow-md);
    }

    .metric-top {
      display: flex;
      align-items: baseline;
      gap: 6px;
      margin-bottom: 6px;
    }

    .metric-number {
      font-size: 28px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .metric-unit {
      font-size: 14px;
      font-weight: 600;
      color: var(--accent-amber);
    }

    .metric-label {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .metric-desc {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 模型矩阵胶囊条 */
    .models-stream-wrap {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 24px 0;
    }

    .models-stream-label {
      text-align: center;
      font-size: 13px;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .models-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }

    .model-chip {
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      color: var(--text-main);
      padding: 5px 12px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 600;
      transition: var(--transition);
    }

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

    /* 关于我们 / 平台介绍 */
    .about-overview-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .about-text-content h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 18px;
      color: var(--text-main);
    }

    .about-text-content p {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.8;
    }

    .about-features-list {
      list-style: none;
      margin-top: 22px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .about-feature-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }

    .feature-check-icon {
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      flex-shrink: 0;
    }

    .about-media-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 16px;
      box-shadow: var(--shadow-md);
    }

    .about-media-box img {
      border-radius: var(--radius-md);
      width: 100%;
      object-fit: cover;
    }

    /* 场景矩阵服务能力 (网格大卡片) */
    .services-matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .service-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-highlight);
      box-shadow: var(--shadow-lg);
    }

    .service-icon-box {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      border: 1px solid var(--border-highlight);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      color: var(--primary);
      font-size: 20px;
    }

    .service-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .service-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }

    .service-meta-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--primary-dark);
      background: #fff8f5;
      padding: 4px 10px;
      border-radius: 4px;
      align-self: flex-start;
    }

    /* 对比评测表格板块 */
    .evaluation-card {
      background: #ffffff;
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .rating-summary-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      background: linear-gradient(135deg, #fff7ed 0%, #fff1eb 100%);
      border: 1px solid var(--border-highlight);
      padding: 24px 30px;
      border-radius: var(--radius-md);
      margin-bottom: 30px;
      gap: 20px;
    }

    .rating-badge-group {
      display: flex;
      align-items: center;
      gap: 18px;
    }

    .score-circle {
      width: 72px;
      height: 72px;
      background: linear-gradient(135deg, var(--accent-warm), var(--primary));
      border-radius: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      box-shadow: 0 6px 16px rgba(249, 87, 33, 0.3);
    }

    .score-circle .score-num {
      font-size: 24px;
      font-weight: 900;
      line-height: 1;
    }

    .score-circle .score-max {
      font-size: 11px;
      opacity: 0.9;
    }

    .rating-info h4 {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .stars-display {
      color: #f59e0b;
      font-size: 18px;
      letter-spacing: 2px;
    }

    .rating-highlight-text {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary-dark);
      background: #ffffff;
      padding: 8px 16px;
      border-radius: 8px;
      border: 1px solid var(--border-highlight);
    }

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

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

    .comparison-table th,
    .comparison-table td {
      padding: 16px 18px;
      border-bottom: 1px solid var(--border-color);
    }

    .comparison-table th {
      background-color: #faf5f0;
      font-weight: 700;
      color: var(--text-main);
    }

    .comparison-table tr:hover td {
      background-color: #fffbf8;
    }

    .col-highlight {
      background-color: #fffaf5;
      font-weight: 600;
      color: var(--primary-dark);
    }

    .table-tag-win {
      display: inline-block;
      padding: 2px 8px;
      background: #fed7aa;
      color: #9a3412;
      border-radius: 4px;
      font-size: 11px;
      margin-left: 6px;
    }

    /* 流程与行业解决方案 */
    .flow-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .flow-step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .step-badge {
      font-size: 12px;
      font-weight: 800;
      color: #ffffff;
      background: var(--primary);
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
    }

    .step-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

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

    /* 素材案例展示区 */
    .gallery-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-bottom: 30px;
    }

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

    .gallery-item img {
      width: 100%;
      height: 280px;
      object-fit: cover;
      transition: var(--transition);
    }

    .gallery-item:hover img {
      transform: scale(1.02);
    }

    .gallery-caption {
      padding: 18px 20px;
    }

    .gallery-caption h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .gallery-caption p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 客户评价板块 (6条评论) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--border-highlight);
    }

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

    .review-quote {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 18px;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

    .author-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary-dark);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
    }

    .author-info h5 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

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

    /* FAQ 折叠面板 (不少于10条) */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: transparent;
      border: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-icon {
      font-size: 18px;
      color: var(--primary);
      transition: var(--transition);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #fffcf9;
    }

    .faq-answer-inner {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

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

    .contact-info-col h3 {
      font-size: 24px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

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

    .contact-details-list {
      list-style: none;
      margin-bottom: 24px;
    }

    .contact-detail-row {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
      font-size: 14px;
      color: var(--text-main);
    }

    .contact-detail-row strong {
      color: var(--primary-dark);
      min-width: 70px;
    }

    .qr-card {
      display: inline-block;
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-md);
      padding: 12px;
      background: #fffaf5;
      text-align: center;
      max-width: 170px;
    }

    .qr-card img {
      width: 130px;
      height: 130px;
      margin: 0 auto 8px;
      border-radius: 6px;
    }

    .qr-card span {
      font-size: 12px;
      font-weight: 600;
      color: var(--primary-dark);
    }

    .form-wrapper form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      outline: none;
      background: var(--bg-main);
      transition: var(--transition);
      font-family: inherit;
    }

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

    .form-btn-submit {
      background: linear-gradient(135deg, var(--accent-warm), var(--primary));
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      padding: 13px 28px;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(249, 87, 33, 0.25);
      transition: var(--transition);
      margin-top: 8px;
    }

    .form-btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(249, 87, 33, 0.35);
    }

    /* 行业资讯 / 最新文章链接区 */
    .articles-block {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 14px;
      margin-top: 20px;
    }

    .article-link-chip {
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      padding: 12px 16px;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: var(--transition);
    }

    .article-link-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-light);
    }

    /* 页脚与友情链接 */
    .site-footer {
      background: #1e293b;
      color: #f1f5f9;
      padding: 60px 0 30px;
      border-top: 1px solid #334155;
    }

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

    .footer-brand-col h4 {
      font-size: 20px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 12px;
    }

    .footer-brand-col p {
      font-size: 13px;
      color: #94a3b8;
      line-height: 1.7;
      margin-bottom: 16px;
    }

    .footer-links-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 16px;
      position: relative;
    }

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

    .footer-links-col ul li {
      margin-bottom: 8px;
    }

    .footer-links-col ul li a {
      font-size: 13px;
      color: #94a3b8;
    }

    .footer-links-col ul li a:hover {
      color: var(--accent-warm);
    }

    .friend-links-box {
      border-top: 1px solid #334155;
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friend-links-box span {
      font-size: 13px;
      font-weight: 700;
      color: #cbd5e1;
      margin-right: 14px;
    }

    .friend-links-list {
      display: inline-flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-top: 8px;
    }

    .friend-links-list a {
      font-size: 13px;
      color: #94a3b8;
    }

    .friend-links-list a:hover {
      color: var(--accent-warm);
    }

    .footer-bottom-bar {
      border-top: 1px solid #334155;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #64748b;
      flex-wrap: wrap;
      gap: 12px;
    }

    .floating-assistant {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-highlight);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      cursor: pointer;
      font-size: 18px;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.08);
    }

    /* 响应式适配 */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 34px;
      }
      .hero-metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-matrix-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-overview-grid {
        grid-template-columns: 1fr;
      }
      .flow-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        padding: 10px 0;
        width: 100%;
      }
      .hero-title {
        font-size: 28px;
      }
      .hero-metrics-bar {
        grid-template-columns: 1fr;
      }
      .services-matrix-grid {
        grid-template-columns: 1fr;
      }
      .gallery-grid {
        grid-template-columns: 1fr;
      }
      .rating-summary-banner {
        flex-direction: column;
        align-items: flex-start;
      }
    }