* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      color: #1f2430;
      background-color: #fdfaf7;
      background-image: radial-gradient(circle at 10% 10%, rgba(255, 209, 128, 0.10), transparent 30%),
                        radial-gradient(circle at 90% 20%, rgba(130, 190, 255, 0.12), transparent 35%),
                        radial-gradient(circle at 50% 80%, rgba(200, 160, 255, 0.08), transparent 40%);
      line-height: 1.6;
      min-height: 100vh;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    img {
      display: block;
      max-width: 100%;
      height: auto;
    }
    ul {
      list-style: none;
    }
    .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: 100;
      background: rgba(255, 255, 255, 0.82);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(255, 210, 140, 0.35);
    }
    .nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-top: 12px;
      padding-bottom: 12px;
      flex-wrap: wrap;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 20px;
      color: #1f2430;
      letter-spacing: 0.5px;
    }
    .brand img {
      width: 38px;
      height: 38px;
      object-fit: contain;
      border-radius: 10px;
      background: #fff7ea;
      padding: 4px;
      box-shadow: 0 2px 8px rgba(255, 180, 80, 0.18);
    }
    .brand span {
      background: linear-gradient(120deg, #e85d3f, #f2a93c, #4a90e2, #9b59b6);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      flex-wrap: wrap;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: #3a3f4b;
      padding: 8px 12px;
      border-radius: 40px;
      transition: background 0.25s, color 0.25s, transform 0.2s;
      position: relative;
    }
    .nav-links a:hover {
      background: #fff2e0;
      color: #d95c34;
      transform: translateY(-1px);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      border: none;
      cursor: pointer;
      font-weight: 600;
      border-radius: 50px;
      transition: all 0.25s ease;
      font-size: 15px;
      padding: 10px 22px;
      text-align: center;
      white-space: nowrap;
    }
    .btn-primary {
      background: linear-gradient(120deg, #f57f4c, #ea4c2d, #d43a1a);
      color: #fff;
      box-shadow: 0 6px 18px rgba(230, 80, 40, 0.30);
    }
    .btn-primary:hover {
      background: linear-gradient(120deg, #ed6d38, #d94226, #bf2f12);
      box-shadow: 0 8px 24px rgba(230, 80, 40, 0.42);
      transform: translateY(-2px);
    }
    .btn-outline {
      background: transparent;
      border: 1.5px solid #e4a07a;
      color: #b54a2a;
    }
    .btn-outline:hover {
      background: #fff2e8;
      border-color: #d9542e;
      transform: translateY(-1px);
    }
    .btn-ghost {
      background: #f4eee7;
      color: #4a3f38;
    }
    .btn-ghost:hover {
      background: #eadfd4;
      transform: translateY(-1px);
    }
    .menu-toggle {
      display: none;
      background: transparent;
      border: 1.5px solid #e5cfc0;
      border-radius: 10px;
      padding: 8px 10px;
      cursor: pointer;
      color: #3a3f4b;
    }
    .menu-toggle:hover {
      background: #fff2e8;
    }
    /* 首屏Hero */
    .hero {
      position: relative;
      overflow: hidden;
      padding: 70px 0 60px;
      background: radial-gradient(ellipse at 70% 30%, rgba(255, 209, 128, 0.18), transparent 55%),
                  radial-gradient(ellipse at 15% 70%, rgba(130, 200, 255, 0.16), transparent 50%),
                  linear-gradient(160deg, #fffaf3 0%, #fdf3ed 100%);
    }
    .hero::before {
      content: '';
      position: absolute;
      top: -100px;
      right: -80px;
      width: 420px;
      height: 420px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255, 180, 120, 0.32), transparent 70%);
      filter: blur(20px);
      pointer-events: none;
    }
    .hero::after {
      content: '';
      position: absolute;
      bottom: -80px;
      left: -80px;
      width: 380px;
      height: 380px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(150, 170, 255, 0.25), transparent 70%);
      filter: blur(30px);
      pointer-events: none;
    }
    .hero-inner {
      position: relative;
      z-index: 2;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 24px;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.75);
      border: 1px solid rgba(240, 160, 100, 0.4);
      padding: 6px 18px;
      border-radius: 50px;
      font-size: 14px;
      color: #a24e2a;
      font-weight: 500;
      backdrop-filter: blur(4px);
      box-shadow: 0 2px 12px rgba(230, 150, 80, 0.08);
    }
    .hero h1 {
      font-size: clamp(28px, 4.6vw, 48px);
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.02em;
      color: #1b1f2a;
      max-width: 900px;
    }
    .hero h1 em {
      font-style: normal;
      background: linear-gradient(115deg, #e7542c, #f5a623, #3a8bd8, #8e44ad);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .hero .sub {
      font-size: 17px;
      color: #505866;
      max-width: 700px;
      line-height: 1.7;
    }
    .hero-cta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-top: 4px;
    }
    .hero-cta .btn {
      font-size: 17px;
      padding: 14px 32px;
    }
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      width: 100%;
      max-width: 860px;
      margin-top: 22px;
    }
    .stat-card {
      background: rgba(255, 255, 255, 0.70);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 220, 190, 0.6);
      border-radius: 20px;
      padding: 18px 12px;
      box-shadow: 0 4px 16px rgba(200, 140, 80, 0.06);
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .stat-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 28px rgba(200, 140, 80, 0.12);
    }
    .stat-card strong {
      display: block;
      font-size: 28px;
      font-weight: 800;
      background: linear-gradient(120deg, #e05a2b, #e8a33d, #3b8fd9);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      line-height: 1.2;
    }
    .stat-card span {
      font-size: 13px;
      color: #5f6773;
      display: block;
      margin-top: 4px;
    }
    /* 通用区块 */
    .section {
      padding: 64px 0;
    }
    .section-alt {
      background: linear-gradient(180deg, rgba(255, 245, 235, 0) 0%, rgba(255, 242, 230, 0.60) 20%, rgba(253, 246, 240, 0.85) 100%);
    }
    .section-title {
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 800;
      color: #1b1f2a;
      letter-spacing: -0.02em;
      line-height: 1.3;
      margin-bottom: 10px;
    }
    .section-desc {
      color: #5e6673;
      font-size: 16px;
      max-width: 680px;
      line-height: 1.7;
    }
    .section-head {
      text-align: center;
      margin-bottom: 40px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
    }
    .section-head .section-desc {
      text-align: center;
    }
    .gradient-text {
      background: linear-gradient(120deg, #d44a20, #e9a13b, #4a8fd4, #8b4eaf);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    /* 卡片通用 */
    .card {
      background: #ffffff;
      border-radius: 22px;
      border: 1px solid rgba(230, 210, 190, 0.5);
      box-shadow: 0 4px 18px rgba(180, 140, 100, 0.06);
      transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
      padding: 24px 20px;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 36px rgba(180, 140, 100, 0.14);
      border-color: rgba(240, 180, 130, 0.7);
    }
    /* 服务能力卡片网格 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
    }
    .service-card {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .service-icon {
      width: 50px;
      height: 50px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      background: linear-gradient(120deg, #fff2e2, #ffe4d0);
      font-size: 22px;
      color: #d95c2e;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .service-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: #232833;
    }
    .service-card p {
      font-size: 14.5px;
      color: #606875;
      line-height: 1.6;
    }
    /* 平台介绍 + 图片 */
    .intro-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .intro-text {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .intro-text h2 {
      font-size: clamp(24px, 2.8vw, 32px);
      font-weight: 800;
      color: #1b1f2a;
      line-height: 1.3;
    }
    .intro-text p {
      color: #555d6b;
      font-size: 15.5px;
      line-height: 1.75;
    }
    .intro-highlights {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 6px;
    }
    .tag {
      background: #fff6ee;
      border: 1px solid #f5d5bb;
      color: #a65a33;
      font-size: 13px;
      font-weight: 500;
      padding: 5px 14px;
      border-radius: 30px;
      transition: background 0.2s;
    }
    .tag:hover {
      background: #ffe9d8;
    }
    .intro-media {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .intro-media img {
      border-radius: 20px;
      box-shadow: 0 10px 30px rgba(150, 110, 70, 0.12);
      border: 3px solid #fff;
      width: 100%;
      object-fit: cover;
    }
    /* 流程步骤 */
    .steps-row {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 18px;
      counter-reset: step;
    }
    .step-card {
      background: #fff;
      border-radius: 20px;
      padding: 26px 18px 20px;
      border: 1px solid rgba(235, 200, 170, 0.5);
      position: relative;
      counter-increment: step;
      transition: transform 0.25s, box-shadow 0.25s;
      box-shadow: 0 2px 10px rgba(180, 130, 80, 0.04);
    }
    .step-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 14px 30px rgba(180, 130, 80, 0.12);
    }
    .step-card::before {
      content: counter(step, decimal-leading-zero);
      font-size: 28px;
      font-weight: 800;
      background: linear-gradient(120deg, #e96134, #e9a83c);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      line-height: 1;
      margin-bottom: 8px;
      display: block;
    }
    .step-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: #222833;
      margin-bottom: 6px;
    }
    .step-card p {
      font-size: 14px;
      color: #636b79;
      line-height: 1.6;
    }
    /* 对比表格 */
    .compare-table-wrap {
      width: 100%;
      overflow-x: auto;
      border-radius: 20px;
      border: 1px solid #f0ddd0;
      background: #fff;
      box-shadow: 0 4px 18px rgba(160, 120, 80, 0.06);
    }
    table {
      width: 100%;
      border-collapse: collapse;
      min-width: 760px;
      font-size: 15px;
    }
    th {
      background: linear-gradient(120deg, #fdf2e9, #fbe8d8);
      color: #4c3a2f;
      font-weight: 700;
      padding: 16px 18px;
      text-align: left;
      border-bottom: 2px solid #f0d8c5;
    }
    td {
      padding: 14px 18px;
      border-bottom: 1px solid #f6e8dc;
      color: #4a505c;
      vertical-align: top;
    }
    tr:last-child td {
      border-bottom: none;
    }
    tr:hover td {
      background: #fffbf7;
    }
    .rating-stars {
      color: #f5a623;
      letter-spacing: 2px;
      font-size: 18px;
    }
    .score-badge {
      display: inline-block;
      background: linear-gradient(120deg, #f5a623, #e05a2b);
      color: #fff;
      font-weight: 700;
      border-radius: 30px;
      padding: 3px 14px;
      font-size: 14px;
      margin-left: 8px;
    }
    /* 评论卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }
    .review-card {
      background: #fff;
      border-radius: 20px;
      padding: 22px 18px;
      border: 1px solid #f3e2d4;
      box-shadow: 0 3px 12px rgba(170, 120, 80, 0.05);
      transition: transform 0.25s, box-shadow 0.25s;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .review-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 14px 28px rgba(170, 120, 80, 0.12);
    }
    .review-head {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #ffd9b8, #ffb48a);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #8a4526;
      font-weight: 700;
      font-size: 17px;
      flex-shrink: 0;
    }
    .review-head strong {
      font-size: 15px;
      color: #1f2430;
    }
    .review-head span {
      display: block;
      font-size: 12.5px;
      color: #8a939f;
    }
    .review-card p {
      font-size: 14.5px;
      color: #515966;
      line-height: 1.7;
    }
    /* 案例展示 */
    .case-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 24px;
      align-items: stretch;
    }
    .case-main {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .case-main img {
      border-radius: 20px;
      width: 100%;
      object-fit: cover;
      border: 3px solid #fff;
      box-shadow: 0 8px 24px rgba(160, 110, 70, 0.10);
    }
    .case-side {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .case-side img {
      border-radius: 20px;
      border: 3px solid #fff;
      box-shadow: 0 8px 24px rgba(160, 110, 70, 0.10);
      object-fit: cover;
      width: 100%;
    }
    .case-side .card {
      flex: 1;
    }
    /* 标签云 */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }
    .tag-cloud .tag {
      font-size: 14px;
      padding: 6px 16px;
      transition: background 0.2s, transform 0.2s;
    }
    .tag-cloud .tag:hover {
      background: #ffe6d0;
      transform: translateY(-2px);
    }
    /* FAQ */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #fff;
      border-radius: 18px;
      border: 1px solid #f0ddd0;
      overflow: hidden;
      transition: box-shadow 0.25s;
    }
    .faq-item:hover {
      box-shadow: 0 6px 18px rgba(170, 120, 80, 0.08);
    }
    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 18px 22px;
      cursor: pointer;
      font-weight: 600;
      font-size: 16px;
      color: #232833;
      user-select: none;
      transition: background 0.2s;
    }
    .faq-q:hover {
      background: #fffaf5;
    }
    .faq-q::after {
      content: '+';
      font-size: 24px;
      font-weight: 400;
      color: #d46c38;
      transition: transform 0.3s;
      line-height: 1;
    }
    .faq-item.active .faq-q::after {
      content: '−';
      transform: rotate(0deg);
    }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.3s ease;
      padding: 0 22px;
      color: #5b636f;
      font-size: 15px;
      line-height: 1.75;
    }
    .faq-item.active .faq-a {
      max-height: 300px;
      padding: 0 22px 20px;
    }
    /* 文章列表 */
    .article-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 20px;
    }
    .article-card {
      display: flex;
      flex-direction: column;
      gap: 8px;
      background: #fff;
      border-radius: 20px;
      padding: 20px;
      border: 1px solid #f3e0d2;
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .article-card:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 26px rgba(160, 110, 70, 0.10);
    }
    .article-card .meta {
      font-size: 12.5px;
      color: #a8826e;
      font-weight: 500;
    }
    .article-card h3 {
      font-size: 16px;
      font-weight: 700;
      color: #1f2430;
      line-height: 1.45;
    }
    .article-card a {
      font-size: 13.5px;
      color: #c05228;
      font-weight: 600;
      margin-top: auto;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      transition: gap 0.2s;
    }
    .article-card a:hover {
      gap: 8px;
    }
    /* 表单 */
    .form-wrap {
      background: #fff;
      border-radius: 26px;
      padding: 34px 28px;
      border: 1px solid #f0dfd1;
      box-shadow: 0 8px 30px rgba(170, 120, 70, 0.07);
      max-width: 840px;
      margin: 0 auto;
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full {
      grid-column: 1 / -1;
    }
    .form-group label {
      font-size: 14px;
      font-weight: 600;
      color: #3d434f;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 12px 16px;
      border-radius: 14px;
      border: 1.5px solid #ecd9ca;
      background: #fffdfb;
      font-size: 15px;
      color: #232833;
      font-family: inherit;
      transition: border-color 0.25s, box-shadow 0.25s;
      outline: none;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: #e68a54;
      box-shadow: 0 0 0 4px rgba(230, 130, 80, 0.10);
    }
    .form-group textarea {
      resize: vertical;
      min-height: 96px;
    }
    .form-note {
      font-size: 13px;
      color: #8c909a;
      text-align: center;
      margin-top: 12px;
    }
    /* 页脚 */
    .site-footer {
      background: #2b2723;
      color: #e3dbd4;
      margin-top: 30px;
      padding: 46px 0 24px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 30px;
    }
    .site-footer h4 {
      font-size: 16px;
      color: #fff;
      margin-bottom: 14px;
      font-weight: 700;
    }
    .site-footer p,
    .site-footer li,
    .site-footer a {
      font-size: 14px;
      color: #cfc6be;
      line-height: 1.8;
    }
    .site-footer a:hover {
      color: #ffb784;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .footer-bottom {
      margin-top: 34px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.10);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      font-size: 13px;
      color: #a89e95;
    }
    .footer-bottom a {
      color: #cfc6be;
    }
    .footer-bottom a:hover {
      color: #ffb784;
    }
    .qr-box {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 10px;
    }
    .qr-box img {
      width: 72px;
      height: 72px;
      border-radius: 12px;
      border: 2px solid #4b433c;
      object-fit: cover;
      background: #fff;
    }
    /* 浮动客服 */
    .float-service {
      position: fixed;
      right: 22px;
      bottom: 30px;
      z-index: 200;
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 10px;
    }
    .float-btn {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: linear-gradient(135deg, #f57f4c, #e0391c);
      color: #fff;
      border: none;
      cursor: pointer;
      box-shadow: 0 8px 24px rgba(220, 80, 40, 0.38);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .float-btn:hover {
      transform: scale(1.06) translateY(-2px);
      box-shadow: 0 12px 30px rgba(220, 80, 40, 0.50);
    }
    .float-panel {
      display: none;
      background: #fff;
      border-radius: 18px;
      padding: 16px;
      box-shadow: 0 12px 40px rgba(80, 50, 20, 0.20);
      border: 1px solid #f0ddd0;
      width: 200px;
      text-align: center;
    }
    .float-panel.show {
      display: block;
      animation: popIn 0.22s ease;
    }
    @keyframes popIn {
      from { opacity: 0; transform: translateY(8px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .float-panel img {
      width: 130px;
      height: 130px;
      object-fit: cover;
      border-radius: 12px;
      margin: 0 auto 8px;
      border: 1px solid #f0e0d0;
    }
    .float-panel p {
      font-size: 13px;
      color: #5d5550;
      line-height: 1.6;
    }
    .back-top {
      position: fixed;
      left: 22px;
      bottom: 30px;
      z-index: 150;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      border: 1px solid #f0d8c5;
      background: rgba(255, 255, 255, 0.90);
      color: #b5522a;
      font-size: 20px;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(160, 120, 80, 0.12);
      transition: transform 0.25s, box-shadow 0.25s;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .back-top:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 22px rgba(160, 120, 80, 0.20);
    }
    /* 动画 */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.65s ease, transform 0.65s ease;
      will-change: opacity, transform;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .delay-1 { transition-delay: 0.08s; }
    .delay-2 { transition-delay: 0.16s; }
    .delay-3 { transition-delay: 0.24s; }
    /* 响应式 */
    @media (max-width: 1024px) {
      .hero-stats {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .case-grid {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 860px) {
      .menu-toggle {
        display: inline-flex;
      }
      .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 10px 0 4px;
        border-top: 1px solid #f0e2d6;
        margin-top: 6px;
      }
      .nav-links.open {
        display: flex;
      }
      .nav-links a {
        padding: 10px 8px;
        border-radius: 10px;
        text-align: left;
      }
      .nav-actions {
        margin-left: auto;
      }
      .nav-actions .btn {
        padding: 8px 16px;
        font-size: 13px;
      }
      .nav-bar {
        flex-wrap: wrap;
      }
      .intro-split {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 22px;
      }
      .hero {
        padding: 48px 0 44px;
      }
    }
    @media (max-width: 540px) {
      .hero-stats {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
      }
      .stat-card strong {
        font-size: 22px;
      }
      .section {
        padding: 44px 0;
      }
      .form-wrap {
        padding: 24px 16px;
      }
      .hero-cta .btn {
        padding: 12px 22px;
        font-size: 15px;
        width: 100%;
      }
      .float-service {
        right: 14px;
        bottom: 20px;
      }
      .back-top {
        left: 14px;
        bottom: 20px;
      }
    }