:root {
      --primary: #1052fa;
      --primary-dark: #0a3bc2;
      --primary-light: #e8f0fe;
      --accent: #00d2ff;
      --navy: #0b1a3d;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --shadow-sm: 0 2px 8px rgba(16, 82, 250, 0.06);
      --shadow-md: 0 10px 30px rgba(16, 82, 250, 0.08);
      --shadow-hover: 0 16px 36px rgba(16, 82, 250, 0.16);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.28s ease;
    }

    * {
      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-page);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

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

    ul, ol {
      list-style: none;
    }

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

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

    .brand-wrap .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

    .nav-container {
      display: flex;
      align-items: center;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links li a {
      display: inline-block;
      padding: 10px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, #1052fa 0%, #0040e5 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(16, 82, 250, 0.35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #1f60ff 0%, #0a49f5 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(16, 82, 250, 0.45);
      color: #ffffff;
    }

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

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

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      flex-direction: column;
      gap: 5px;
    }

    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--navy);
      transition: var(--transition);
    }

    /* 首屏 Hero (严格无图，纯CSS构建) */
    .hero-section {
      position: relative;
      padding: 70px 0 80px;
      background: linear-gradient(180deg, #edf4ff 0%, #f8fafc 100%);
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-decor-circle {
      position: absolute;
      top: -120px;
      right: -80px;
      width: 480px;
      height: 480px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(0, 210, 255, 0.12) 0%, rgba(16, 82, 250, 0.02) 70%, transparent 100%);
      pointer-events: none;
    }

    .hero-decor-grid {
      position: absolute;
      inset: 0;
      background-size: 32px 32px;
      background-image: 
        linear-gradient(to right, rgba(16, 82, 250, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(16, 82, 250, 0.04) 1px, transparent 1px);
      pointer-events: none;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
      position: relative;
      z-index: 2;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background: #ffffff;
      border: 1px solid #d4e3ff;
      border-radius: 30px;
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 600;
      box-shadow: var(--shadow-sm);
      margin-bottom: 20px;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background-color: #10b981;
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }

    .hero-title {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 800;
      color: var(--navy);
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }

    .hero-title span {
      color: var(--primary);
      background: linear-gradient(120deg, #1052fa 0%, #00b4d8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-bottom: 36px;
    }

    .hero-features-list {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      padding-top: 16px;
      border-top: 1px dashed #cbd5e1;
    }

    .feature-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      color: var(--text-main);
      font-weight: 500;
    }

    .feature-icon-svg {
      width: 18px;
      height: 18px;
      color: var(--primary);
    }

    /* 首屏纯CSS技术面板 */
    .hero-tech-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 30px;
      border: 1px solid #dbeafe;
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .tech-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
      padding-bottom: 16px;
      border-bottom: 1px solid #f1f5f9;
    }

    .tech-header-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--navy);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .tech-tag {
      font-size: 0.75rem;
      padding: 4px 10px;
      background: #ecfdf5;
      color: #059669;
      border-radius: 20px;
      font-weight: 600;
    }

    .tech-metrics-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-bottom: 24px;
    }

    .metric-card {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 16px;
      transition: var(--transition);
    }

    .metric-card:hover {
      background: #ffffff;
      border-color: #93c5fd;
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .metric-val {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .metric-label {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .engine-terminal {
      background: #0b1528;
      border-radius: var(--radius-md);
      padding: 16px;
      color: #94a3b8;
      font-family: monospace;
      font-size: 0.8rem;
      line-height: 1.6;
    }

    .terminal-line {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .terminal-line .accent {
      color: #38bdf8;
    }

    .terminal-line .highlight {
      color: #4ade80;
    }

    /* 通用模块结构 */
    .section {
      padding: 80px 0;
      position: relative;
    }

    .section-alt {
      background-color: #ffffff;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }

    .section-subtitle {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 10px;
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: 20px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--navy);
      margin-bottom: 16px;
      line-height: 1.35;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 平台介绍 & 模型网格 */
    .about-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 40px;
    }

    .about-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .about-card:hover {
      border-color: #93c5fd;
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .about-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--primary);
    }

    .about-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 12px;
    }

    .about-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    .model-chips-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .model-chips-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .model-tags-container {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .model-tag {
      font-size: 0.85rem;
      padding: 6px 14px;
      background: #f1f5f9;
      color: var(--text-main);
      border-radius: 30px;
      font-weight: 500;
      border: 1px solid #e2e8f0;
      transition: var(--transition);
    }

    .model-tag:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    /* 核心场景工坊卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

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

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

    .service-badge {
      align-self: flex-start;
      font-size: 0.72rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 14px;
    }

    .service-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }

    .service-footer-link {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .service-footer-link:hover {
      color: var(--primary-dark);
      text-decoration: underline;
    }

    /* 横幅展示区 (非首屏宣传图) */
    .banner-showcase-wrap {
      margin: 40px 0;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .banner-image-card {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      background: #ffffff;
    }

    .banner-image-card img {
      width: 100%;
      height: 260px;
      object-fit: cover;
      transition: var(--transition);
    }

    .banner-image-card:hover img {
      transform: scale(1.02);
    }

    /* 对比评测板块 */
    .eval-highlight-box {
      background: linear-gradient(135deg, #0b1a3d 0%, #102a6b 100%);
      border-radius: var(--radius-lg);
      padding: 36px 40px;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      margin-bottom: 36px;
      box-shadow: var(--shadow-md);
    }

    .eval-stars-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .eval-score-num {
      font-size: 3rem;
      font-weight: 800;
      color: #38bdf8;
      line-height: 1;
    }

    .eval-stars-text {
      font-size: 1.1rem;
      font-weight: 700;
    }

    .stars-icon {
      color: #fbbf24;
      font-size: 1.25rem;
      letter-spacing: 3px;
    }

    .eval-summary-tag {
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 8px 18px;
      border-radius: 30px;
      font-size: 0.9rem;
      color: #e2e8f0;
    }

    .eval-table-container {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      overflow-x: auto;
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .eval-table th, 
    .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f5f9;
      font-size: 0.92rem;
    }

    .eval-table th {
      background-color: #f8fafc;
      color: var(--navy);
      font-weight: 700;
    }

    .eval-table tr:hover td {
      background-color: #f0f7ff;
    }

    .eval-table .col-brand {
      color: var(--primary);
      font-weight: 700;
      background-color: rgba(16, 82, 250, 0.03);
    }

    .check-yes {
      color: #059669;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .check-no {
      color: #94a3b8;
    }

    /* 标准流程与服务网络 */
    .workflow-steps-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      margin-bottom: 40px;
    }

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .step-num {
      width: 36px;
      height: 36px;
      line-height: 36px;
      margin: 0 auto 16px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      font-weight: 800;
      font-size: 1rem;
    }

    .step-card h3 {
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .network-bar {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px 30px;
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }

    .network-item {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .network-dot {
      width: 10px;
      height: 10px;
      background: #1052fa;
      border-radius: 50%;
    }

    /* 案例中心 */
    .case-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: var(--transition);
    }

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

    .case-img-box {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background-color: #e2e8f0;
    }

    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

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

    .case-content {
      padding: 20px;
    }

    .case-tag {
      font-size: 0.75rem;
      color: var(--primary);
      font-weight: 700;
      text-transform: uppercase;
      margin-bottom: 8px;
      display: inline-block;
    }

    .case-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--navy);
      margin-bottom: 8px;
    }

    .case-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 需求匹配与表单 */
    .matching-form-wrap {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 40px;
      max-width: 860px;
      margin: 0 auto;
    }

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

    .form-group-full {
      grid-column: span 2;
    }

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--navy);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background-color: #f8fafc;
      transition: var(--transition);
      outline: none;
    }

    .form-control:focus {
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(16, 82, 250, 0.12);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    /* 用户评论 (6条) */
    .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: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.92rem;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: normal;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid #f1f5f9;
      padding-top: 16px;
    }

    .author-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary) 0%, #38bdf8 100%);
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.95rem;
    }

    .author-info h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--navy);
    }

    .author-info span {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠面板 (>=10 条) */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

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

    .faq-header {
      padding: 18px 24px;
      font-size: 1.02rem;
      font-weight: 600;
      color: var(--navy);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-icon {
      font-size: 1.25rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

    .faq-content {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.7;
    }

    .faq-item.active {
      border-color: #93c5fd;
      box-shadow: var(--shadow-sm);
    }

    .faq-item.active .faq-header {
      color: var(--primary);
    }

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

    .faq-item.active .faq-content {
      padding-bottom: 20px;
    }

    /* 加盟代理与资讯 */
    .agency-banner-wrap {
      background: linear-gradient(135deg, #1052fa 0%, #0634a3 100%);
      border-radius: var(--radius-lg);
      padding: 48px;
      color: #ffffff;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
    }

    .agency-title {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .agency-desc {
      font-size: 1rem;
      color: #dbeafe;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .agency-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .agency-list-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
      font-weight: 500;
    }

    .agency-right-card {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-md);
      padding: 28px;
      text-align: center;
    }

    .articles-section {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-top: 40px;
    }

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

    .article-item-link {
      display: block;
      padding: 12px 16px;
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      color: var(--text-main);
      transition: var(--transition);
      word-break: break-all;
    }

    .article-item-link:hover {
      background: var(--primary-light);
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }

    /* 底部收尾与页脚 */
    .site-footer {
      background-color: #0b1528;
      color: #94a3b8;
      padding: 60px 0 30px;
      border-top: 1px solid #1e293b;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 20px;
    }

    .footer-contact-list li {
      margin-bottom: 10px;
      font-size: 0.9rem;
      display: flex;
      align-items: center;
      gap: 8px;
      color: #cbd5e1;
    }

    .footer-contact-list a {
      color: #cbd5e1;
    }

    .footer-contact-list a:hover {
      color: #38bdf8;
    }

    .footer-qrcode-box {
      width: 120px;
      border-radius: var(--radius-sm);
      overflow: hidden;
      background: #ffffff;
      padding: 6px;
    }

    .footer-qrcode-box img {
      width: 100%;
      height: auto;
    }

    .friend-links-box {
      border-top: 1px solid #1e293b;
      padding: 24px 0;
      margin-bottom: 24px;
    }

    .friend-links-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: #cbd5e1;
      margin-bottom: 12px;
    }

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

    .friend-links-list a {
      font-size: 0.85rem;
      color: #94a3b8;
      transition: var(--transition);
    }

    .friend-links-list a:hover {
      color: #38bdf8;
      text-decoration: underline;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 悬浮工具 */
    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--primary);
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-3px);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-steps-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-cards-grid,
      .reviews-grid,
      .case-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-container {
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        display: none;
        flex-direction: column;
        align-items: flex-start;
        box-shadow: var(--shadow-md);
      }
      .nav-container.active {
        display: flex;
      }
      .nav-links {
        flex-direction: column;
        width: 100%;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        width: 100%;
        padding: 12px 16px;
      }
      .header-action {
        width: 100%;
        margin-top: 16px;
      }
      .header-action .btn {
        width: 100%;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .services-grid,
      .about-cards-grid,
      .reviews-grid,
      .case-grid,
      .banner-showcase-wrap,
      .workflow-steps-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group-full {
        grid-column: span 1;
      }
      .agency-banner-wrap {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }