:root {
      --primary: #5856d6;
      --primary-hover: #4745c9;
      --candy-pink: #ff4e83;
      --candy-coral: #ff7657;
      --candy-cyan: #00c7be;
      --candy-purple: #af52de;
      --candy-yellow: #ffb340;
      --bg-main: #faf9fd;
      --bg-surface: #ffffff;
      --bg-surface-soft: #f4f2fb;
      --text-main: #1f2238;
      --text-muted: #5e6482;
      --border-subtle: #eae7f6;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --shadow-soft: 0 10px 30px rgba(88, 86, 214, 0.06);
      --shadow-hover: 0 16px 36px rgba(88, 86, 214, 0.12);
      --container-width: 1200px;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      min-width: 320px;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

    /* 容器统一规范 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .section {
      padding: 70px 0;
      position: relative;
    }

    .section-alt {
      background: linear-gradient(180deg, rgba(244, 242, 251, 0.6) 0%, rgba(255, 255, 255, 0.9) 100%);
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px auto;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      padding: 6px 14px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary);
      background-color: rgba(88, 86, 214, 0.1);
      border-radius: var(--radius-full);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 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 var(--border-subtle);
      transition: box-shadow 0.3s ease;
    }

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

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

    .brand-box .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      background: linear-gradient(135deg, var(--candy-pink), var(--primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      white-space: nowrap;
    }

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

    .nav-links li a {
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover {
      color: var(--primary);
      background-color: rgba(88, 86, 214, 0.06);
    }

    .nav-action-group {
      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-full);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      white-space: nowrap;
      text-align: center;
    }

    .btn-candy {
      background: linear-gradient(135deg, var(--candy-pink) 0%, var(--primary) 100%);
      color: #ffffff !important;
      box-shadow: 0 6px 18px rgba(255, 78, 131, 0.35);
    }

    .btn-candy:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(255, 78, 131, 0.45);
    }

    .btn-soft {
      background: #ffffff;
      color: var(--primary) !important;
      border-color: var(--border-subtle);
    }

    .btn-soft:hover {
      background: var(--bg-surface-soft);
      border-color: var(--primary);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .mobile-menu-btn svg {
      width: 28px;
      height: 28px;
      fill: var(--text-main);
    }

    /* 首屏 Hero (严禁任何图片) */
    .hero-section {
      padding: 75px 0 65px;
      background: radial-gradient(circle at 10% 20%, rgba(255, 78, 131, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(0, 199, 190, 0.1) 0%, transparent 45%),
                  linear-gradient(180deg, #ffffff 0%, var(--bg-main) 100%);
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: linear-gradient(90deg, rgba(255, 78, 131, 0.12), rgba(88, 86, 214, 0.12));
      color: var(--primary);
      padding: 6px 18px;
      border-radius: var(--radius-full);
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 24px;
      border: 1px solid rgba(88, 86, 214, 0.15);
    }

    .hero-title {
      font-size: 2.5rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: var(--text-main);
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

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

    .btn-hero-primary {
      padding: 14px 34px;
      font-size: 1.1rem;
      font-weight: 700;
      background: linear-gradient(135deg, #ff4e83 0%, #af52de 50%, #5856d6 100%);
      color: #ffffff !important;
      border-radius: var(--radius-full);
      box-shadow: 0 10px 28px rgba(88, 86, 214, 0.35);
      transition: all 0.3s ease;
    }

    .btn-hero-primary:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 14px 32px rgba(88, 86, 214, 0.45);
    }

    .btn-hero-secondary {
      padding: 14px 30px;
      font-size: 1.05rem;
      background: #ffffff;
      color: var(--text-main) !important;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-full);
      box-shadow: var(--shadow-soft);
    }

    .btn-hero-secondary:hover {
      border-color: var(--primary);
      color: var(--primary) !important;
      transform: translateY(-2px);
    }

    /* 首屏数据亮点纯CSS卡片 */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      max-width: 1040px;
      margin: 0 auto;
    }

    .hero-stat-card {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 22px 16px;
      box-shadow: var(--shadow-soft);
      transition: all 0.3s ease;
    }

    .hero-stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(88, 86, 214, 0.3);
    }

    .stat-number {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
      line-height: 1.2;
    }

    .stat-number.candy-1 { color: var(--candy-pink); }
    .stat-number.candy-2 { color: var(--candy-cyan); }
    .stat-number.candy-3 { color: var(--candy-yellow); }
    .stat-number.candy-4 { color: var(--candy-purple); }

    .stat-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 平台介绍 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .intro-content h3 {
      font-size: 1.75rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .intro-content p {
      color: var(--text-muted);
      margin-bottom: 20px;
      font-size: 1rem;
    }

    .intro-feature-list {
      list-style: none;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-top: 24px;
    }

    .intro-feature-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .feature-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--candy-cyan);
      flex-shrink: 0;
    }

    .intro-box-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px;
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-soft);
      position: relative;
    }

    .intro-box-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 6px;
      background: linear-gradient(90deg, var(--candy-pink), var(--candy-yellow), var(--candy-cyan));
      border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .tag-pill {
      background: var(--bg-surface-soft);
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      color: var(--text-main);
      font-weight: 500;
      border: 1px solid var(--border-subtle);
      transition: all 0.25s ease;
    }

    .tag-pill:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    /* 服务能力卡片网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-soft);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(88, 86, 214, 0.25);
    }

    .service-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      font-weight: 800;
      font-size: 1.25rem;
      color: #ffffff;
    }

    .icon-pink { background: linear-gradient(135deg, var(--candy-pink), #ff7b9f); }
    .icon-cyan { background: linear-gradient(135deg, var(--candy-cyan), #38e1d9); }
    .icon-purple { background: linear-gradient(135deg, var(--candy-purple), #c979f3); }
    .icon-yellow { background: linear-gradient(135deg, var(--candy-yellow), #ffc86b); }
    .icon-coral { background: linear-gradient(135deg, var(--candy-coral), #ff9880); }
    .icon-blue { background: linear-gradient(135deg, var(--primary), #7c7af5); }

    .service-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .service-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .service-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 一站式制作全景场景网格 */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .scene-card {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: all 0.25s ease;
    }

    .scene-card:hover {
      border-color: var(--candy-purple);
      background: #faf8ff;
      transform: translateY(-3px);
    }

    .scene-card-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .scene-card-desc {
      font-size: 0.84rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 流程步骤 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .flow-step-item {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 28px 20px;
      text-align: center;
      box-shadow: var(--shadow-soft);
      position: relative;
    }

    .step-number {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--candy-pink), var(--primary));
      color: #ffffff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      font-size: 1.1rem;
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 案例中心展示 */
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 30px;
    }

    .gallery-card {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      transition: all 0.3s ease;
    }

    .gallery-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }

    .gallery-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: var(--bg-surface-soft);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .gallery-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .gallery-card:hover .gallery-img-wrap img {
      transform: scale(1.05);
    }

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

    .gallery-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .gallery-tag {
      font-size: 0.8rem;
      color: var(--primary);
      font-weight: 600;
    }

    /* 对比评测表格与评分卡 */
    .rating-banner {
      background: linear-gradient(135deg, #fff2f6 0%, #f4f0ff 100%);
      border: 1px solid rgba(255, 78, 131, 0.2);
      border-radius: var(--radius-lg);
      padding: 24px 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 32px;
      flex-wrap: wrap;
      gap: 20px;
    }

    .rating-highlight {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .rating-score {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--candy-pink);
      line-height: 1;
    }

    .rating-stars {
      color: #ffb340;
      font-size: 1.25rem;
      margin-bottom: 4px;
    }

    .table-container {
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-soft);
    }

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

    .comparison-table th,
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 0.92rem;
    }

    .comparison-table th {
      background-color: var(--bg-surface-soft);
      font-weight: 700;
      color: var(--text-main);
    }

    .comparison-table tr:last-child td {
      border-bottom: none;
    }

    .tag-check {
      display: inline-block;
      padding: 4px 10px;
      border-radius: var(--radius-full);
      font-size: 0.8rem;
      font-weight: 700;
      background: rgba(0, 199, 190, 0.12);
      color: #008f88;
    }

    .tag-cross {
      display: inline-block;
      padding: 4px 10px;
      border-radius: var(--radius-full);
      font-size: 0.8rem;
      font-weight: 500;
      background: #f1f2f6;
      color: #747d8c;
    }

    /* 用户评论卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .review-stars {
      color: var(--candy-yellow);
      margin-bottom: 12px;
      font-size: 1rem;
    }

    .review-content {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
    }

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

    .user-avatar-badge {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--candy-pink), var(--candy-yellow));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }

    .user-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .user-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }

    .faq-question {
      width: 100%;
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      text-align: left;
      font-size: 1.02rem;
      font-weight: 600;
      color: var(--text-main);
      background: none;
      border: none;
      cursor: pointer;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 22px;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.6;
    }

    .faq-item.active {
      border-color: rgba(88, 86, 214, 0.3);
      box-shadow: var(--shadow-soft);
    }

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

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-bottom: 20px;
    }

    /* 需求表单与联系我们 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-soft);
    }

    .contact-info-panel h3 {
      font-size: 1.6rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .contact-item-row {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 18px;
    }

    .contact-qr-box {
      margin-top: 24px;
      padding: 16px;
      background: var(--bg-surface-soft);
      border-radius: var(--radius-md);
      display: inline-block;
      text-align: center;
    }

    .contact-qr-box img {
      width: 140px;
      height: 140px;
      object-fit: cover;
      border-radius: var(--radius-sm);
      display: block;
      margin: 0 auto 8px;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      background: var(--bg-surface-soft);
      color: var(--text-main);
      transition: all 0.25s ease;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(88, 86, 214, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* 文章与资讯链接 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-item {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-soft);
      transition: all 0.25s ease;
    }

    .article-item:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
    }

    .article-item h4 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .article-item p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 友情链接与页脚 */
    .site-footer {
      background-color: #1a1b29;
      color: #a6abbd;
      padding: 60px 0 30px;
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-brand p {
      line-height: 1.6;
      font-size: 0.88rem;
    }

    .footer-col h5 {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links li a {
      color: #a6abbd;
    }

    .footer-links li a:hover {
      color: #ffffff;
    }

    .footer-friends {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 24px 0;
      margin-top: 20px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      font-size: 0.85rem;
    }

    .footer-friends span {
      color: #ffffff;
      font-weight: 600;
    }

    .footer-friends a {
      color: #8c93a8;
      margin-right: 8px;
    }

    .footer-friends a:hover {
      color: var(--candy-cyan);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      text-align: center;
      font-size: 0.82rem;
      color: #6d738a;
    }

    /* 悬浮工具 */
    .floating-tool {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      cursor: pointer;
      border: 1px solid var(--border-subtle);
      transition: all 0.25s ease;
    }

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

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-stats-grid,
      .scene-grid,
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid,
      .gallery-grid,
      .reviews-grid,
      .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid,
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 1.85rem;
      }
      .section-title {
        font-size: 1.6rem;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-subtle);
        box-shadow: var(--shadow-soft);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-stats-grid,
      .services-grid,
      .scene-grid,
      .flow-steps,
      .gallery-grid,
      .reviews-grid,
      .articles-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        align-items: flex-start;
      }
      .contact-wrapper {
        padding: 24px;
      }
    }