:root {
      --primary: #e11d48;
      --primary-hover: #be123c;
      --primary-light: #fff1f2;
      --primary-border: #fecdd3;
      --accent: #f43f5e;
      --accent-glow: rgba(225, 29, 72, 0.15);
      --text-dark: #1e293b;
      --text-muted: #475569;
      --bg-light: #fff5f6;
      --bg-white: #ffffff;
      --border-color: #f1f5f9;
      --border-card: #ffe4e8;
      --shadow-sm: 0 2px 8px rgba(225, 29, 72, 0.06);
      --shadow-md: 0 10px 25px -5px rgba(225, 29, 72, 0.1);
      --shadow-lg: 0 20px 35px -8px rgba(225, 29, 72, 0.14);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.28s ease;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: #fdf4f5;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      color: var(--text-dark);
      background: linear-gradient(180deg, #fff5f7 0%, #ffffff 25%, #fff1f4 60%, #fff8f9 100%);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-card);
      box-shadow: 0 2px 12px rgba(225, 29, 72, 0.05);
    }

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

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

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

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

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

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-dark);
      text-decoration: none;
      transition: var(--transition);
      border-radius: var(--radius-sm);
    }

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

    .header-action {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.95rem;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: 999px;
      text-decoration: none;
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.3);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #e11d48 0%, #be123c 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(225, 29, 72, 0.4);
      color: #ffffff;
    }

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

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

    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-card);
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      color: var(--primary);
      font-size: 1.25rem;
      cursor: pointer;
    }

    /* 模块通用样式 */
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 52px auto;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 16px;
      background: var(--primary-light);
      color: var(--primary);
      border: 1px solid var(--primary-border);
      border-radius: 999px;
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: #0f172a;
      line-height: 1.35;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 首屏 HERO 区域（严格无图片） */
    .hero-section {
      padding: 85px 0 95px 0;
      position: relative;
      background: radial-gradient(circle at 50% 10%, #ffe4e9 0%, #fff6f8 60%, #ffffff 100%);
      border-bottom: 1px solid var(--border-card);
      overflow: hidden;
    }

    .hero-glow-1 {
      position: absolute;
      top: -120px;
      left: 10%;
      width: 480px;
      height: 480px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(244, 63, 94, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
      pointer-events: none;
    }

    .hero-glow-2 {
      position: absolute;
      bottom: -80px;
      right: 5%;
      width: 520px;
      height: 520px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(225, 29, 72, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid var(--border-card);
      padding: 6px 18px;
      border-radius: 999px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      margin-bottom: 22px;
    }

    .hero-h1 {
      font-size: 2.85rem;
      font-weight: 900;
      color: #111827;
      line-height: 1.25;
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }

    .hero-h1 span {
      color: var(--primary);
    }

    .hero-lead {
      font-size: 1.2rem;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 34px;
      font-weight: 400;
    }

    .hero-cta-box {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 45px;
    }

    .hero-cta-box .btn {
      padding: 13px 32px;
      font-size: 1.05rem;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 25px;
    }

    .hero-stat-card {
      background: #ffffff;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      padding: 22px 16px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      text-align: center;
    }

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

    .stat-number {
      display: block;
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      margin-bottom: 6px;
    }

    .stat-label {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* 平台介绍板块 */
    .about-box {
      background: #ffffff;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      padding: 45px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 30px;
    }

    .about-lead {
      font-size: 1.15rem;
      line-height: 1.8;
      color: #334155;
      margin-bottom: 32px;
    }

    .model-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 30px;
    }

    .model-chip {
      background: var(--primary-light);
      border: 1px solid var(--primary-border);
      color: var(--primary);
      padding: 6px 14px;
      border-radius: 8px;
      font-size: 0.88rem;
      font-weight: 700;
      transition: var(--transition);
    }

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

    .feature-pillars {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .pillar-card {
      background: #fff8f9;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .pillar-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .pillar-card h3::before {
      content: "";
      display: inline-block;
      width: 8px;
      height: 16px;
      background: var(--primary);
      border-radius: 4px;
    }

    .pillar-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 场景卡片网格 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }

    .service-badge {
      display: inline-block;
      align-self: flex-start;
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 3px 10px;
      border-radius: 6px;
      margin-bottom: 14px;
    }

    .service-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
    }

    .service-foot-link {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .service-foot-link:hover {
      text-decoration: underline;
    }

    /* 素材展示与案例中心 */
    .showcase-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 26px;
      margin-bottom: 30px;
    }

    .media-card {
      background: #ffffff;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      padding: 16px;
      box-shadow: var(--shadow-sm);
    }

    .media-card-img-box {
      width: 100%;
      border-radius: var(--radius-sm);
      overflow: hidden;
      background: #f8fafc;
      margin-bottom: 14px;
    }

    .media-card-img-box img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.35s ease;
    }

    .media-card:hover .media-card-img-box img {
      transform: scale(1.02);
    }

    .media-info h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 6px;
    }

    .media-info p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .banner-item {
      background: #ffffff;
      padding: 8px;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-sm);
    }

    .banner-item img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 4px;
    }

    /* 对比评测板块 */
    .compare-container {
      background: #ffffff;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, #fff1f3 0%, #ffe4e8 100%);
      border: 1px solid var(--primary-border);
      border-radius: var(--radius-md);
      padding: 20px 28px;
      margin-bottom: 28px;
    }

    .rating-stars {
      display: flex;
      align-items: center;
      gap: 6px;
      color: #f59e0b;
      font-size: 1.2rem;
    }

    .score-badge {
      font-size: 1.6rem;
      font-weight: 900;
      color: var(--primary);
    }

    .compare-table-wrap {
      overflow-x: auto;
    }

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

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

    .compare-table th {
      background-color: #fff1f4;
      color: #0f172a;
      font-weight: 700;
    }

    .compare-table td:first-child {
      font-weight: 700;
      color: #1e293b;
    }

    .compare-table .highlight-col {
      background-color: #fff9fa;
      color: var(--primary);
      font-weight: 700;
    }

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

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-badge {
      width: 44px;
      height: 44px;
      line-height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
      color: #ffffff;
      font-weight: 800;
      font-size: 1.1rem;
      margin: 0 auto 16px auto;
      box-shadow: 0 4px 10px rgba(225, 29, 72, 0.3);
    }

    .step-card h4 {
      font-size: 1.1rem;
      color: #0f172a;
      margin-bottom: 10px;
    }

    .step-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* Token 比价卡片 */
    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .price-card {
      background: #ffffff;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      padding: 34px 28px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
    }

    .price-card.featured {
      border: 2px solid var(--primary);
      transform: scale(1.02);
      box-shadow: var(--shadow-md);
    }

    .price-card.featured::before {
      content: "爆款推荐";
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 14px;
      border-radius: 999px;
    }

    .price-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .price-cost {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 16px;
    }

    .price-cost small {
      font-size: 0.9rem;
      font-weight: 400;
      color: var(--text-muted);
    }

    .price-features {
      list-style: none;
      margin-bottom: 24px;
      text-align: left;
    }

    .price-features li {
      font-size: 0.9rem;
      color: var(--text-dark);
      padding: 8px 0;
      border-bottom: 1px dashed #f1f5f9;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .price-features li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 800;
    }

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

    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-body {
      font-size: 0.92rem;
      color: #334155;
      line-height: 1.65;
      margin-bottom: 20px;
      font-style: normal;
    }

    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #fce7ec;
      padding-top: 14px;
    }

    .user-avatar-initial {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #f43f5e, #be123c);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }

    .user-meta h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #0f172a;
    }

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

    /* 需求表单与加盟 */
    .form-section-inner {
      display: grid;
      grid-template-columns: 1fr 1.15fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      padding: 45px;
      box-shadow: var(--shadow-md);
    }

    .form-info-side h3 {
      font-size: 1.85rem;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 16px;
    }

    .form-info-side p {
      font-size: 0.98rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .contact-spec-list {
      list-style: none;
      margin-bottom: 28px;
    }

    .contact-spec-list li {
      font-size: 0.92rem;
      color: #1e293b;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .qrcode-box {
      background: #fff8f9;
      border: 1px dashed var(--primary-border);
      border-radius: var(--radius-sm);
      padding: 16px;
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
    }

    .qrcode-box img {
      width: 120px;
      height: 120px;
      display: block;
      border-radius: 6px;
      object-fit: cover;
    }

    .qrcode-box span {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--primary);
    }

    .custom-form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 0.9rem;
      font-weight: 600;
      color: #334155;
    }

    .form-control {
      width: 100%;
      padding: 11px 16px;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: #1e293b;
      background-color: #ffffff;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.15);
    }

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

    /* 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-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.02rem;
      font-weight: 700;
      color: #0f172a;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      transition: var(--transition);
    }

    .faq-question:hover {
      color: var(--primary);
      background-color: #fffafb;
    }

    .faq-icon {
      font-size: 1.25rem;
      color: var(--primary);
      transition: transform 0.28s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #ffffff;
    }

    .faq-answer-inner {
      padding: 0 24px 20px 24px;
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 资讯与文章列表 */
    .article-container {
      background: #ffffff;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .article-stream {
      margin-bottom: 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      background: #fff8f9;
      padding: 16px;
      border-radius: var(--radius-sm);
    }

    .article-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      list-style: none;
    }

    .article-links-list li a {
      display: inline-block;
      padding: 8px 16px;
      background: #ffffff;
      border: 1px solid var(--border-card);
      border-radius: 999px;
      font-size: 0.88rem;
      color: #1e293b;
      text-decoration: none;
      transition: var(--transition);
    }

    .article-links-list li a:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-light);
    }

    /* 页脚 */
    .site-footer {
      background-color: #1a080d;
      color: #f1e5e8;
      padding: 60px 0 28px 0;
      border-top: 2px solid var(--primary);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 16px;
      position: relative;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 24px;
      height: 2px;
      background: var(--primary);
    }

    .footer-col p {
      font-size: 0.88rem;
      color: #cbd5e1;
      line-height: 1.6;
      margin-bottom: 12px;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 8px;
    }

    .footer-links li a {
      font-size: 0.88rem;
      color: #e2e8f0;
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-links li a:hover {
      color: var(--primary-border);
      padding-left: 4px;
    }

    .friendly-links-section {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 20px 0;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
    }

    .friendly-links-section span {
      font-size: 0.88rem;
      font-weight: 600;
      color: #ffffff;
    }

    .friendly-links-section a {
      color: #cbd5e1;
      font-size: 0.85rem;
      text-decoration: none;
      transition: var(--transition);
    }

    .friendly-links-section a:hover {
      color: #ffffff;
      text-decoration: underline;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 22px;
      text-align: center;
      font-size: 0.82rem;
      color: #94a3b8;
    }

    /* 浮动客服挂件 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 998;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.4);
      cursor: pointer;
      text-decoration: none;
      font-size: 1.1rem;
      border: none;
      transition: var(--transition);
    }

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

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .service-grid,
      .testimonial-grid,
      .price-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .feature-pillars {
        grid-template-columns: repeat(2, 1fr);
      }
      .form-section-inner {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 18px 24px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        border-bottom: 1px solid var(--border-card);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
      }
      .hero-h1 {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.75rem;
      }
      .hero-stats-grid,
      .service-grid,
      .showcase-grid,
      .testimonial-grid,
      .price-grid,
      .step-grid,
      .banner-gallery,
      .feature-pillars {
        grid-template-columns: 1fr;
      }
      .price-card.featured {
        transform: none;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        text-align: center;
        gap: 12px;
      }
    }