:root {
      --primary: #ff4d4d;
      --primary-dark: #e63939;
      --primary-light: #ffe8e8;
      --secondary: #2d2d2d;
      --accent: #ff8c42;
      --accent-light: #fff2e6;
      --bg: #fff8f5;
      --bg-soft: #fff0e8;
      --text: #1a1a1a;
      --text-muted: #555;
      --card-bg: #ffffff;
      --shadow: 0 8px 30px rgba(0,0,0,0.06);
      --shadow-hover: 0 16px 48px rgba(255,77,77,0.15);
      --radius: 20px;
      --radius-sm: 12px;
      --container: 1200px;
      --nav-h: 72px;
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a { text-decoration: none; color: inherit; }
    img { max-width: 100%; height: auto; display: block; }
    ul { list-style: none; }
    .container {
      width: 100%;
      max-width: var(--container);
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    /* ---------- 顶部导航 ---------- */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255,248,245,0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(255,77,77,0.12);
      height: var(--nav-h);
      display: flex;
      align-items: center;
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      gap: 16px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
      font-weight: 800;
      font-size: 1.25rem;
      color: var(--secondary);
      letter-spacing: -0.3px;
    }
    .brand .ai-page-logo {
      max-height: 36px;
      width: auto;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      flex-wrap: wrap;
    }
    .nav-links a {
      font-size: 0.9rem;
      color: var(--text-muted);
      padding: 6px 12px;
      border-radius: 8px;
      transition: all 0.2s ease;
      white-space: nowrap;
    }
    .nav-links a:hover {
      color: var(--primary);
      background: var(--primary-light);
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--primary);
      color: #fff !important;
      padding: 10px 20px !important;
      border-radius: 50px !important;
      font-weight: 600;
      box-shadow: 0 4px 14px rgba(255,77,77,0.35);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }
    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(255,77,77,0.5);
      background: var(--primary-dark) !important;
      color: #fff !important;
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--secondary);
      margin: 5px 0;
      border-radius: 2px;
      transition: 0.3s;
    }
    /* ---------- 首屏 Hero （无图片） ---------- */
    .hero {
      position: relative;
      padding: 80px 0 60px;
      background: linear-gradient(145deg, #fff8f5 0%, #ffe8e8 40%, #fff0e8 100%);
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute;
      top: -120px;
      right: -120px;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(255,77,77,0.12) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero::after {
      content: '';
      position: absolute;
      bottom: -80px;
      left: -80px;
      width: 300px;
      height: 300px;
      background: radial-gradient(circle, rgba(255,140,66,0.10) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-inner {
      position: relative;
      z-index: 2;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 28px;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255,77,77,0.10);
      border: 1px solid rgba(255,77,77,0.25);
      color: var(--primary-dark);
      padding: 6px 18px;
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 600;
      letter-spacing: 0.5px;
    }
    .hero h1 {
      font-size: clamp(2rem, 5vw, 3.4rem);
      font-weight: 900;
      line-height: 1.2;
      color: var(--secondary);
      max-width: 820px;
      letter-spacing: -0.02em;
    }
    .hero h1 em {
      font-style: normal;
      color: var(--primary);
      position: relative;
    }
    .hero-sub {
      font-size: clamp(1rem, 1.8vw, 1.15rem);
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.7;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-top: 8px;
    }
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: var(--primary);
      color: #fff;
      padding: 14px 36px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 1rem;
      box-shadow: 0 6px 20px rgba(255,77,77,0.35);
      transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 12px 32px rgba(255,77,77,0.5);
      background: var(--primary-dark);
    }
    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: #fff;
      color: var(--primary);
      padding: 14px 36px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 1rem;
      border: 2px solid var(--primary);
      transition: all 0.3s ease;
      cursor: pointer;
    }
    .btn-secondary:hover {
      background: var(--primary-light);
      transform: translateY(-3px);
      box-shadow: 0 8px 24px rgba(255,77,77,0.2);
    }
    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 32px 48px;
      margin-top: 20px;
      padding: 28px 40px;
      background: rgba(255,255,255,0.75);
      backdrop-filter: blur(8px);
      border-radius: var(--radius);
      border: 1px solid rgba(255,77,77,0.15);
      box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    }
    .stat-item { text-align: center; }
    .stat-num {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.2;
    }
    .stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-top: 4px;
    }
    /* ---------- 通用 Section ---------- */
    .section {
      padding: 72px 0;
      position: relative;
    }
    .section:nth-child(even) {
      background: var(--bg-soft);
    }
    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-tag {
      display: inline-block;
      background: var(--primary-light);
      color: var(--primary-dark);
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: 50px;
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .section-header h2 {
      font-size: clamp(1.6rem, 3vw, 2.2rem);
      font-weight: 800;
      color: var(--secondary);
      margin-bottom: 12px;
      letter-spacing: -0.01em;
    }
    .section-header p {
      color: var(--text-muted);
      max-width: 640px;
      margin: 0 auto;
      font-size: 1rem;
    }
    /* ---------- 服务能力卡片 ---------- */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 24px;
    }
    .service-card {
      background: var(--card-bg);
      border-radius: var(--radius);
      padding: 32px 28px;
      box-shadow: var(--shadow);
      border: 1px solid rgba(255,77,77,0.06);
      transition: transform 0.35s ease, box-shadow 0.35s ease;
      position: relative;
      overflow: hidden;
    }
    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.4s ease;
    }
    .service-card:hover::before { transform: scaleX(1); }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    .service-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      font-size: 1.4rem;
      color: var(--primary);
      transition: transform 0.3s ease;
    }
    .service-card:hover .service-icon { transform: rotate(-6deg) scale(1.1); }
    .service-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--secondary);
    }
    .service-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }
    /* ---------- 流程步骤 ---------- */
    .steps-row {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 20px;
      counter-reset: step;
    }
    .step-item {
      background: var(--card-bg);
      border-radius: var(--radius-sm);
      padding: 28px 24px;
      text-align: center;
      box-shadow: var(--shadow);
      border: 1px solid rgba(255,77,77,0.06);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      position: relative;
    }
    .step-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .step-num {
      width: 44px;
      height: 44px;
      background: var(--primary);
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
      margin: 0 auto 16px;
      box-shadow: 0 4px 12px rgba(255,77,77,0.3);
    }
    .step-item h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--secondary);
    }
    .step-item p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    /* ---------- 对比评测 ---------- */
    .compare-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: stretch;
    }
    .compare-score-card {
      background: linear-gradient(145deg, #fff, #fff8f5);
      border-radius: var(--radius);
      padding: 40px 36px;
      border: 2px solid var(--primary);
      box-shadow: 0 12px 40px rgba(255,77,77,0.15);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      transition: transform 0.3s ease;
    }
    .compare-score-card:hover { transform: scale(1.01); }
    .score-stars {
      color: #ffb800;
      font-size: 1.6rem;
      letter-spacing: 4px;
      margin-bottom: 12px;
    }
    .score-big {
      font-size: 3.6rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }
    .score-denom {
      font-size: 1rem;
      color: var(--text-muted);
      margin-top: 4px;
    }
    .score-label {
      margin-top: 16px;
      font-weight: 700;
      color: var(--secondary);
      font-size: 1.1rem;
    }
    .compare-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      background: var(--card-bg);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      font-size: 0.92rem;
    }
    .compare-table th {
      background: var(--primary);
      color: #fff;
      padding: 16px 20px;
      text-align: left;
      font-weight: 700;
      font-size: 0.9rem;
    }
    .compare-table td {
      padding: 14px 20px;
      border-bottom: 1px solid rgba(0,0,0,0.05);
      color: var(--text-muted);
    }
    .compare-table tr:last-child td { border-bottom: none; }
    .compare-table tr:nth-child(even) td { background: #fffcf9; }
    .compare-table td:first-child {
      font-weight: 600;
      color: var(--secondary);
      width: 40%;
    }
    .compare-table .highlight {
      color: var(--primary);
      font-weight: 700;
    }
    /* ---------- FAQ 折叠 ---------- */
    .faq-list {
      max-width: 820px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: var(--card-bg);
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255,77,77,0.08);
      overflow: hidden;
      transition: box-shadow 0.3s ease;
    }
    .faq-item:hover { box-shadow: 0 4px 16px rgba(255,77,77,0.08); }
    .faq-question {
      padding: 20px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 600;
      color: var(--secondary);
      font-size: 1rem;
      gap: 12px;
      transition: background 0.2s;
      user-select: none;
    }
    .faq-question:hover { background: var(--primary-light); }
    .faq-question .faq-icon {
      font-size: 1.3rem;
      color: var(--primary);
      transition: transform 0.35s ease;
      flex-shrink: 0;
      font-weight: 300;
    }
    .faq-item.open .faq-icon { transform: rotate(45deg); }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s ease;
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.7;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
      padding: 0 24px 20px;
    }
    /* ---------- 用户评论 ---------- */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .review-card {
      background: var(--card-bg);
      border-radius: var(--radius);
      padding: 28px 24px;
      box-shadow: var(--shadow);
      border: 1px solid rgba(255,77,77,0.06);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .review-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .review-stars {
      color: #ffb800;
      font-size: 0.95rem;
      letter-spacing: 2px;
    }
    .review-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      flex: 1;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 8px;
      border-top: 1px solid rgba(0,0,0,0.05);
    }
    .review-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
      flex-shrink: 0;
    }
    .review-name {
      font-weight: 700;
      font-size: 0.9rem;
      color: var(--secondary);
    }
    .review-role {
      font-size: 0.78rem;
      color: var(--text-muted);
    }
    /* ---------- 案例展示 ---------- */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 24px;
    }
    .case-card {
      background: var(--card-bg);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      border: 1px solid rgba(255,77,77,0.06);
      transition: transform 0.35s ease, box-shadow 0.35s ease;
      display: flex;
      flex-direction: column;
    }
    .case-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    .case-img {
      width: 100%;
      aspect-ratio: 16/10;
      overflow: hidden;
      background: #f5f5f5;
    }
    .case-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .case-card:hover .case-img img { transform: scale(1.06); }
    .case-body {
      padding: 20px 22px;
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .case-body h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--secondary);
    }
    .case-body p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    /* ---------- 文章列表 ---------- */
    .article-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }
    .article-card {
      background: var(--card-bg);
      border-radius: var(--radius-sm);
      padding: 24px;
      box-shadow: var(--shadow);
      border: 1px solid rgba(255,77,77,0.06);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .article-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .article-tag {
      display: inline-block;
      background: var(--primary-light);
      color: var(--primary-dark);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 12px;
      border-radius: 50px;
      width: fit-content;
    }
    .article-card h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--secondary);
      line-height: 1.45;
    }
    .article-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex: 1;
    }
    .article-card .read-more {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary);
      transition: color 0.2s;
    }
    .article-card:hover .read-more { color: var(--primary-dark); }
    /* ---------- 表单 ---------- */
    .form-section {
      background: linear-gradient(135deg, #fff8f5 0%, #ffe8e8 100%);
    }
    .form-card {
      max-width: 720px;
      margin: 0 auto;
      background: var(--card-bg);
      border-radius: var(--radius);
      padding: 48px 40px;
      box-shadow: 0 16px 48px rgba(255,77,77,0.10);
      border: 1px solid rgba(255,77,77,0.10);
    }
    .form-card h3 {
      text-align: center;
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--secondary);
    }
    .form-card .form-sub {
      text-align: center;
      color: var(--text-muted);
      font-size: 0.92rem;
      margin-bottom: 32px;
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full { grid-column: 1 / -1; }
    .form-group label {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--secondary);
    }
    .form-group label .required { color: var(--primary); margin-left: 2px; }
    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1.5px solid #e8e8e8;
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      font-family: inherit;
      color: var(--text);
      background: #fff;
      transition: border-color 0.25s ease, box-shadow 0.25s ease;
      outline: none;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(255,77,77,0.12);
    }
    .form-group textarea { resize: vertical; min-height: 100px; }
    .form-submit {
      grid-column: 1 / -1;
      display: flex;
      justify-content: center;
      margin-top: 8px;
    }
    .form-submit .btn-primary {
      width: 100%;
      max-width: 320px;
      padding: 14px 24px;
      font-size: 1rem;
    }
    /* ---------- 页脚 ---------- */
    .site-footer {
      background: #1f1a17;
      color: #d4cfc9;
      padding: 56px 0 28px;
      position: relative;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .footer-brand {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-brand .brand {
      color: #fff;
      font-size: 1.15rem;
    }
    .footer-brand p {
      font-size: 0.85rem;
      color: #a39e97;
      line-height: 1.65;
      max-width: 280px;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .footer-col ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col ul a {
      font-size: 0.85rem;
      color: #a39e97;
      transition: color 0.2s ease, padding-left 0.2s ease;
      display: inline-block;
    }
    .footer-col ul a:hover {
      color: var(--primary);
      padding-left: 4px;
    }
    .footer-contact-item {
      display: flex;
      align-items: flex-start;
      gap: 8px;
      font-size: 0.85rem;
      color: #a39e97;
      line-height: 1.5;
    }
    .footer-contact-item strong { color: #e0dcd6; font-weight: 600; }
    .footer-qr {
      margin-top: 8px;
      max-width: 100px;
      border-radius: 8px;
      border: 2px solid rgba(255,255,255,0.1);
    }
    .footer-bottom {
      padding-top: 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      font-size: 0.8rem;
      color: #8c8781;
    }
    .footer-bottom a {
      color: #a39e97;
      transition: color 0.2s;
    }
    .footer-bottom a:hover { color: var(--primary); }
    /* ---------- 浮动客服 ---------- */
    .float-kefu {
      position: fixed;
      right: 20px;
      bottom: 100px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-kefu .kefu-btn {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      box-shadow: 0 6px 20px rgba(255,77,77,0.4);
      cursor: pointer;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      border: none;
    }
    .float-kefu .kefu-btn:hover {
      transform: scale(1.08);
      box-shadow: 0 10px 28px rgba(255,77,77,0.55);
    }
    .back-top {
      position: fixed;
      right: 20px;
      bottom: 32px;
      z-index: 99;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--secondary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      cursor: pointer;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
      border: none;
      box-shadow: 0 4px 14px rgba(0,0,0,0.2);
    }
    .back-top.show { opacity: 1; visibility: visible; }
    .back-top:hover { background: var(--primary); transform: translateY(-3px); }
    /* ---------- 二维码弹层 ---------- */
    .qr-modal {
      position: fixed;
      inset: 0;
      z-index: 200;
      background: rgba(0,0,0,0.5);
      display: none;
      align-items: center;
      justify-content: center;
      padding: 24px;
    }
    .qr-modal.show { display: flex; }
    .qr-modal-inner {
      background: #fff;
      border-radius: var(--radius);
      padding: 32px;
      text-align: center;
      max-width: 340px;
      width: 100%;
      position: relative;
      animation: popIn 0.3s ease;
    }
    @keyframes popIn {
      from { transform: scale(0.9); opacity: 0; }
      to { transform: scale(1); opacity: 1; }
    }
    .qr-modal-inner img { margin: 0 auto 16px; max-width: 200px; border-radius: 12px; }
    .qr-modal-inner p { font-size: 0.9rem; color: var(--text-muted); }
    .qr-modal-close {
      position: absolute;
      top: 12px;
      right: 16px;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-muted);
      cursor: pointer;
    }
    /* ---------- 滚动渐入 ---------- */
    .reveal {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    /* ---------- 响应式 ---------- */
    @media (max-width: 1024px) {
      .compare-wrap { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav-links {
        position: fixed;
        top: var(--nav-h);
        left: 0;
        width: 100%;
        background: rgba(255,248,245,0.98);
        backdrop-filter: blur(16px);
        flex-direction: column;
        align-items: stretch;
        padding: 16px 24px;
        gap: 4px;
        border-bottom: 1px solid rgba(255,77,77,0.12);
        transform: translateY(-120%);
        transition: transform 0.35s ease;
        max-height: calc(100vh - var(--nav-h));
        overflow-y: auto;
        box-shadow: 0 16px 40px rgba(0,0,0,0.08);
      }
      .nav-links.open { transform: translateY(0); }
      .nav-links a {
        padding: 12px 16px;
        border-radius: 8px;
        font-size: 0.95rem;
      }
      .nav-links .nav-cta { text-align: center; margin-top: 8px; }
      .menu-toggle { display: block; }
      .hero { padding: 48px 0 40px; }
      .hero-stats { gap: 20px 32px; padding: 20px 24px; }
      .section { padding: 52px 0; }
      .form-card { padding: 32px 24px; }
      .form-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; gap: 28px; }
      .footer-bottom { flex-direction: column; text-align: center; }
      .compare-table { font-size: 0.85rem; }
      .compare-table th, .compare-table td { padding: 12px 14px; }
    }
    @media (max-width: 480px) {
      .container { padding-left: 16px; padding-right: 16px; }
      .hero-actions { flex-direction: column; width: 100%; }
      .hero-actions .btn-primary,
      .hero-actions .btn-secondary { width: 100%; }
      .hero-stats { flex-direction: column; gap: 16px; }
      .service-grid { grid-template-columns: 1fr; }
      .review-grid { grid-template-columns: 1fr; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }
      .reveal { opacity: 1; transform: none; }
    }