/* 基础重置与彩虹多彩浅色设计系统 */
    :root {
      --primary: #4361ee;
      --primary-rgb: 67, 97, 238;
      --secondary: #3a0ca3;
      --rainbow-1: #ff5e7e;
      --rainbow-2: #ff9900;
      --rainbow-3: #2ec4b6;
      --rainbow-4: #4cc9f0;
      --rainbow-5: #7209b7;
      --bg-main: #f8faff;
      --bg-card: #ffffff;
      --text-main: #1f2937;
      --text-muted: #4b5563;
      --text-light: #6b7280;
      --border-color: #e2e8f0;
      --border-rainbow: linear-gradient(90deg, #ff5e7e, #ff9900, #2ec4b6, #4361ee, #7209b7);
      --shadow-sm: 0 2px 8px rgba(31, 41, 55, 0.05);
      --shadow-md: 0 8px 24px rgba(67, 97, 238, 0.08);
      --shadow-lg: 0 16px 36px rgba(67, 97, 238, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.26s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

    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;
      font-size: 15px;
      overflow-x: hidden;
      min-width: 320px;
      background-image: 
        radial-gradient(at 0% 0%, rgba(255, 94, 126, 0.04) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(76, 201, 240, 0.05) 0px, transparent 50%),
        radial-gradient(at 50% 100%, rgba(114, 9, 183, 0.03) 0px, transparent 50%);
      background-attachment: fixed;
    }

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

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

    /* 容器规范：全站贯穿统一最大宽度 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-wrap .ai-page-logo {
      height: 38px;
      width: auto;
      object-fit: contain;
    }
    .brand-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: #111827;
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .brand-badge {
      font-size: 0.7rem;
      font-weight: 600;
      padding: 2px 7px;
      border-radius: 999px;
      background: linear-gradient(135deg, #ff5e7e, #ff9900);
      color: #fff;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }
    .nav-links li a {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 12px;
      border-radius: 6px;
      display: inline-block;
    }
    .nav-links li a:hover {
      color: var(--primary);
      background-color: rgba(67, 97, 238, 0.06);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 18px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-rainbow {
      background: linear-gradient(135deg, #4361ee 0%, #7209b7 50%, #ff5e7e 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(67, 97, 238, 0.28);
    }
    .btn-rainbow:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(114, 9, 183, 0.35);
      color: #ffffff;
    }
    .btn-outline {
      background: #ffffff;
      color: var(--primary);
      border-color: #cbd5e1;
    }
    .btn-outline:hover {
      border-color: var(--primary);
      background: #eff6ff;
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
      padding: 4px;
    }

    /* 首屏 Hero：严格不包含任何图片 */
    .hero-section {
      padding: 64px 0 54px;
      position: relative;
      overflow: hidden;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.8) 0%, rgba(240, 245, 255, 0.4) 100%);
      border-bottom: 1px solid var(--border-color);
    }
    .hero-wrapper {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      position: relative;
      z-index: 2;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid #fed7aa;
      border-radius: 999px;
      font-size: 0.82rem;
      font-weight: 600;
      color: #ea580c;
      margin-bottom: 22px;
      box-shadow: 0 2px 8px rgba(234, 88, 12, 0.08);
    }
    .hero-title {
      font-size: clamp(2rem, 4.2vw, 3.2rem);
      line-height: 1.25;
      font-weight: 800;
      color: #0f172a;
      max-width: 900px;
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }
    .text-gradient {
      background: linear-gradient(135deg, #ff5e7e 0%, #ff9900 25%, #2ec4b6 50%, #4361ee 75%, #7209b7 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-subtitle {
      font-size: clamp(1rem, 1.3vw, 1.15rem);
      color: var(--text-muted);
      max-width: 780px;
      margin-bottom: 32px;
      line-height: 1.7;
    }
    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      justify-content: center;
      margin-bottom: 40px;
    }
    .hero-btn-group .btn {
      padding: 13px 30px;
      font-size: 1rem;
      border-radius: var(--radius-md);
    }
    
    /* 首屏纯CSS科技数据卡片 */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      width: 100%;
      max-width: 1000px;
      margin-top: 10px;
    }
    .hero-stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .hero-stat-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--rainbow-1);
    }
    .hero-stat-card:nth-child(2)::before { background: var(--rainbow-2); }
    .hero-stat-card:nth-child(3)::before { background: var(--rainbow-3); }
    .hero-stat-card:nth-child(4)::before { background: var(--rainbow-4); }
    .hero-stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .stat-number {
      font-size: 1.85rem;
      font-weight: 800;
      color: #1e293b;
      line-height: 1.2;
      margin-bottom: 4px;
    }
    .stat-label {
      font-size: 0.85rem;
      color: var(--text-light);
      font-weight: 500;
    }

    /* 区域通用规范 */
    .section-wrap {
      padding: 64px 0;
      position: relative;
    }
    .section-wrap-alt {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-header {
      text-align: center;
      max-width: 740px;
      margin: 0 auto 46px;
    }
    .section-eyebrow {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.2px;
      padding: 4px 12px;
      background: rgba(67, 97, 238, 0.08);
      color: var(--primary);
      border-radius: 999px;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: clamp(1.6rem, 2.8vw, 2.2rem);
      font-weight: 800;
      color: #111827;
      line-height: 1.35;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 0.98rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 平台核心能力卡片 */
    .platform-features {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }
    .pf-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 22px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .pf-card:hover {
      border-color: #cbd5e1;
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .pf-icon {
      width: 46px;
      height: 46px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 16px;
    }
    .pf-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
    }
    .pf-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 场景矩阵：丰富且整洁 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
      gap: 18px;
    }
    .scenario-card {
      background: #ffffff;
      border: 1px solid #e5e7eb;
      border-radius: var(--radius-md);
      padding: 20px;
      transition: var(--transition);
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .scenario-card:hover {
      border-color: #93c5fd;
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    .scenario-badge {
      display: inline-block;
      align-self: flex-start;
      font-size: 0.72rem;
      font-weight: 600;
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 10px;
    }
    .scenario-name {
      font-size: 1.05rem;
      font-weight: 700;
      color: #111827;
      margin-bottom: 6px;
    }
    .scenario-text {
      font-size: 0.84rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 支持模型标签云 */
    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
      margin-top: 30px;
    }
    .model-chip {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      color: #334155;
      font-size: 0.82rem;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 999px;
      box-shadow: 0 1px 3px rgba(0,0,0,0.03);
      transition: var(--transition);
    }
    .model-chip:hover {
      background: #eff6ff;
      border-color: #bfdbfe;
      color: var(--primary);
    }

    /* 标准制作流程 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
      margin-top: 20px;
    }
    .process-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .process-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--rainbow-1), var(--rainbow-2));
      color: #ffffff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      margin-bottom: 16px;
    }
    .process-card:nth-child(2) .process-num { background: linear-gradient(135deg, var(--rainbow-2), var(--rainbow-3)); }
    .process-card:nth-child(3) .process-num { background: linear-gradient(135deg, var(--rainbow-3), var(--rainbow-4)); }
    .process-card:nth-child(4) .process-num { background: linear-gradient(135deg, var(--rainbow-4), var(--rainbow-5)); }
    .process-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #111827;
      margin-bottom: 8px;
    }
    .process-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比评测卡片与表格 */
    .review-summary-card {
      background: #ffffff;
      border: 2px solid #e0e7ff;
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-md);
      margin-bottom: 30px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }
    .review-score-area {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .review-big-score {
      font-size: 3.5rem;
      font-weight: 900;
      color: #4361ee;
      line-height: 1;
    }
    .review-score-info h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 4px;
    }
    .stars {
      color: #f59e0b;
      font-size: 1.25rem;
      letter-spacing: 2px;
    }
    .review-highlights {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }
    .hl-badge {
      background: #ecfdf5;
      color: #065f46;
      border: 1px solid #a7f3d0;
      padding: 6px 12px;
      border-radius: 6px;
      font-size: 0.82rem;
      font-weight: 600;
    }

    /* 对比表格 */
    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.88rem;
      min-width: 650px;
    }
    .comparison-table th, 
    .comparison-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
    }
    .comparison-table th {
      background: #f8fafc;
      color: #334155;
      font-weight: 700;
    }
    .comparison-table td.highlight-col {
      background: #f0fdf4;
      font-weight: 700;
      color: #15803d;
    }
    .comparison-table tr:last-child td {
      border-bottom: none;
    }

    /* 案例中心：包含指定素材图片 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .case-media-box {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #e2e8f0;
      overflow: hidden;
    }
    .case-media-box.square {
      aspect-ratio: 1 / 1;
    }
    .case-media-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-media-box img {
      transform: scale(1.04);
    }
    .case-content {
      padding: 18px 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .case-tag {
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .case-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
    }
    .case-text {
      font-size: 0.84rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 宣传图画廊 */
    .banner-gallery-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 30px;
    }
    .banner-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      aspect-ratio: 16 / 10;
      background: #f1f5f9;
    }
    .banner-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .banner-item:hover img {
      transform: scale(1.05);
    }

    /* 客户评论卡片：6条精美评价 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 20px;
    }
    .review-user-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-header-info {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .user-avatar-circle {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #ffffff;
      font-size: 0.95rem;
    }
    .user-meta h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #111827;
    }
    .user-meta p {
      font-size: 0.8rem;
      color: var(--text-light);
    }
    .review-body-text {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 12px;
      font-style: italic;
    }
    .review-star-row {
      color: #f59e0b;
      font-size: 0.85rem;
    }

    /* FAQ 折叠面板 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-question {
      padding: 16px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 600;
      font-size: 0.96rem;
      color: #1f2937;
      background: #ffffff;
      user-select: none;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-arrow {
      font-size: 1.1rem;
      color: var(--text-light);
      transition: transform 0.25s ease;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #fbfcfe;
      border-top: 1px solid transparent;
    }
    .faq-answer-inner {
      padding: 16px 20px;
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
    }
    .faq-item.active {
      border-color: #cbd5e1;
      box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    }
    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
      color: var(--primary);
    }
    .faq-item.active .faq-answer {
      border-top-color: var(--border-color);
    }

    /* 需求表单与联系我们板块 */
    .contact-form-layout {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }
    .contact-info-side {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin: 20px 0;
    }
    .contact-info-row {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    .contact-icon {
      font-size: 18px;
      color: var(--primary);
      min-width: 24px;
    }
    .qr-container {
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px;
      display: inline-flex;
      align-items: center;
      gap: 16px;
      max-width: 320px;
    }
    .qr-container img {
      width: 88px;
      height: 88px;
      border-radius: 6px;
      object-fit: cover;
    }
    .qr-desc h6 {
      font-size: 0.9rem;
      font-weight: 700;
      color: #111827;
      margin-bottom: 4px;
    }
    .qr-desc p {
      font-size: 0.78rem;
      color: var(--text-light);
      line-height: 1.4;
    }

    /* 表单组件 */
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      color: #374151;
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      color: var(--text-main);
      background: #ffffff;
      outline: none;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.12);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* 行业资讯与最新文章 */
    .articles-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .article-links-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 14px;
    }
    .article-item-link {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 14px;
      background: #f8fafc;
      border: 1px solid #edf2f7;
      border-radius: 6px;
      font-size: 0.88rem;
      color: #334155;
    }
    .article-item-link:hover {
      background: #eff6ff;
      border-color: #bfdbfe;
      color: var(--primary);
    }

    /* 页脚 */
    .site-footer {
      background: #111827;
      color: #9ca3af;
      padding: 50px 0 24px;
      border-top: 4px solid;
      border-image: var(--border-rainbow) 1;
      font-size: 0.86rem;
    }
    .footer-content-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 36px;
    }
    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 0.84rem;
      line-height: 1.6;
      color: #94a3b8;
      max-width: 320px;
    }
    .footer-col h5 {
      color: #ffffff;
      font-size: 0.92rem;
      font-weight: 600;
      margin-bottom: 14px;
    }
    .footer-menu {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-menu a {
      color: #94a3b8;
    }
    .footer-menu a:hover {
      color: #ffffff;
    }
    .friend-links-area {
      padding-top: 24px;
      border-top: 1px solid #1f2937;
      margin-bottom: 24px;
    }
    .friend-links-title {
      font-size: 0.82rem;
      font-weight: 600;
      color: #cbd5e1;
      margin-bottom: 10px;
    }
    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .friend-links-wrap a {
      color: #94a3b8;
      font-size: 0.8rem;
    }
    .friend-links-wrap a:hover {
      color: #60a5fa;
    }
    .footer-bottom {
      text-align: center;
      padding-top: 20px;
      border-top: 1px solid #1f2937;
      color: #64748b;
      font-size: 0.78rem;
    }

    /* 浮动客服 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 28px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: 0 4px 16px rgba(0,0,0,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      cursor: pointer;
      border: 1px solid var(--border-color);
      transition: var(--transition);
      color: var(--primary);
    }
    .float-btn:hover {
      transform: scale(1.08);
      background: var(--primary);
      color: #ffffff;
    }
    .float-qr-popup {
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: 8px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      display: none;
      width: 140px;
      text-align: center;
    }
    .float-qr-popup img {
      width: 100%;
      height: auto;
      border-radius: 4px;
    }
    .float-qr-popup span {
      font-size: 0.72rem;
      color: var(--text-muted);
      display: block;
      margin-top: 6px;
    }
    .float-btn.kefu-btn:hover .float-qr-popup {
      display: block;
    }

    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .cases-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .banner-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-form-layout {
        grid-template-columns: 1fr;
      }
      .footer-content-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: stretch;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 8px 16px rgba(0,0,0,0.06);
        padding: 12px 20px;
      }
      .nav-links.show {
        display: flex;
      }
      .hero-stats-grid {
        grid-template-columns: 1fr;
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .cases-grid {
        grid-template-columns: 1fr;
      }
      .footer-content-grid {
        grid-template-columns: 1fr;
      }
      .header-actions {
        display: none;
      }
    }