:root {
      --primary-orange: #ff5e14;
      --primary-hover: #e04b06;
      --accent-warm: #ff8c42;
      --accent-light: #fff5f0;
      --text-main: #1f2329;
      --text-sub: #4e5969;
      --text-muted: #86909c;
      --bg-page: #fbfbfd;
      --bg-card: #ffffff;
      --border-color: #f2dcd0;
      --border-light: #f5ebe4;
      --shadow-sm: 0 4px 12px rgba(255, 94, 20, 0.05);
      --shadow-md: 0 8px 24px rgba(255, 94, 20, 0.08);
      --shadow-hover: 0 14px 32px rgba(255, 94, 20, 0.14);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --transition: all 0.28s ease;
      --max-width: 1200px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      font-size: 15px;
    }

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

    /* 统一全局容器 */
    .container {
      width: 100%;
      max-width: var(--max-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-light);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

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

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

    .brand-title-wrap {
      display: flex;
      flex-direction: column;
    }

    .brand-name {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: 0.5px;
    }

    .brand-slogan {
      font-size: 11px;
      color: var(--primary-orange);
      font-weight: 600;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
    }

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

    .nav-links li a {
      padding: 8px 13px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-sub);
      border-radius: var(--radius-sm);
    }

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

    .nav-cta-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      background: linear-gradient(135deg, var(--accent-warm), var(--primary-orange));
      color: #ffffff !important;
      font-size: 14px;
      font-weight: 600;
      border-radius: 30px;
      box-shadow: 0 4px 14px rgba(255, 94, 20, 0.28);
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }

    .btn-portal:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(255, 94, 20, 0.4);
    }

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

    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 区域通用样式 */
    .section-block {
      padding: 80px 0;
      position: relative;
    }

    .section-alt-bg {
      background: linear-gradient(180deg, #ffffff 0%, #fffbf8 50%, #fef8f4 100%);
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 50px auto;
    }

    .section-badge {
      display: inline-block;
      padding: 4px 14px;
      background: var(--accent-light);
      color: var(--primary-orange);
      border: 1px solid rgba(255, 94, 20, 0.2);
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.3px;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.7;
    }

    /* 首屏 Hero */
    .hero-section {
      padding: 90px 0 70px 0;
      background: radial-gradient(circle at 50% 10%, #fff2eb 0%, #fffaf7 45%, var(--bg-page) 100%);
      border-bottom: 1px solid var(--border-light);
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .hero-container {
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-orange);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      color: #11141a;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title-highlight {
      color: var(--primary-orange);
      position: relative;
      display: inline-block;
    }

    .hero-title-highlight::after {
      content: "";
      position: absolute;
      bottom: 4px;
      left: 0;
      width: 100%;
      height: 8px;
      background: rgba(255, 94, 20, 0.15);
      border-radius: 4px;
      z-index: -1;
    }

    .hero-subtitle {
      font-size: 18px;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-action-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: 16px;
      font-weight: 700;
      background: linear-gradient(135deg, #ff6c26, #ff4900);
      color: #ffffff !important;
      border-radius: 30px;
      box-shadow: 0 8px 24px rgba(255, 94, 20, 0.35);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(255, 94, 20, 0.45);
    }

    .btn-hero-outline {
      padding: 14px 30px;
      font-size: 16px;
      font-weight: 600;
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid #d9d9df;
      border-radius: 30px;
      transition: var(--transition);
    }

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

    .hero-matrix-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-md);
      text-align: left;
    }

    .matrix-head {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-muted);
      text-transform: uppercase;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tech-pill {
      background: #fafafc;
      border: 1px solid #ebebf0;
      padding: 5px 12px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 500;
      color: #333842;
      transition: var(--transition);
    }

    .tech-pill:hover {
      background: var(--accent-light);
      border-color: var(--primary-orange);
      color: var(--primary-orange);
      transform: translateY(-1px);
    }

    /* 指标统计栏 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: -30px;
      position: relative;
      z-index: 10;
    }

    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .metric-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: var(--border-color);
    }

    .metric-val {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary-orange);
      margin-bottom: 4px;
      font-family: inherit;
    }

    .metric-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .metric-sub {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 平台介绍 */
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .intro-text-box h3 {
      font-size: 26px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
      line-height: 1.4;
    }

    .intro-text-box p {
      color: var(--text-sub);
      font-size: 15px;
      margin-bottom: 20px;
      line-height: 1.8;
    }

    .intro-feature-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }

    .intro-feature-item {
      background: #ffffff;
      padding: 14px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .intro-feature-item span {
      width: 8px;
      height: 8px;
      background: var(--primary-orange);
      border-radius: 50%;
      display: inline-block;
    }

    .intro-media-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 12px;
      box-shadow: var(--shadow-md);
    }

    .intro-media-box img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-md);
      display: block;
    }

    /* 场景与能力网格 */
    .cards-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scene-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 26px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .scene-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-color);
    }

    .scene-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: var(--accent-light);
      color: var(--primary-orange);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .scene-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .scene-card p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.65;
      flex-grow: 1;
      margin-bottom: 14px;
    }

    .scene-badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .badge-tag {
      background: #f7f8fa;
      color: #646a73;
      padding: 3px 8px;
      border-radius: 4px;
      font-size: 12px;
    }

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

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
    }

    .step-num {
      font-size: 32px;
      font-weight: 900;
      color: #ffe6d9;
      line-height: 1;
      margin-bottom: 12px;
    }

    .step-card h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .step-card p {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 对比评测专属样式 */
    .review-summary-banner {
      background: linear-gradient(135deg, #fff7f2, #ffede2);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 30px;
      box-shadow: var(--shadow-sm);
    }

    .review-score-box {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .big-score {
      font-size: 48px;
      font-weight: 900;
      color: var(--primary-orange);
      line-height: 1;
    }

    .score-meta h4 {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .star-rating {
      color: #ff9800;
      font-size: 18px;
      letter-spacing: 2px;
    }

    .score-summary-text {
      font-size: 14px;
      color: var(--text-sub);
      max-width: 480px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 720px;
    }

    .custom-table th,
    .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f0f0f4;
      font-size: 14px;
    }

    .custom-table th {
      background: #fafafc;
      font-weight: 700;
      color: var(--text-main);
    }

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

    .table-hl-col {
      background: #fffcf9;
      color: var(--primary-orange);
      font-weight: 600;
    }

    /* 案例中心展示 */
    .case-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 30px;
      align-items: center;
    }

    .case-img-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 10px;
      box-shadow: var(--shadow-md);
    }

    .case-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-md);
    }

    .case-info-wrap h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .case-info-wrap p {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.8;
      margin-bottom: 20px;
    }

    .case-stats-row {
      display: flex;
      gap: 24px;
      padding: 16px 0;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }

    .c-stat-item h4 {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-orange);
    }

    .c-stat-item span {
      font-size: 13px;
      color: var(--text-muted);
    }

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

    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testi-quote {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 18px;
    }

    .testi-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f4f5f8;
      padding-top: 14px;
    }

    .user-avatar-badge {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent-warm), var(--primary-orange));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }

    .user-meta h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-meta span {
      font-size: 12px;
      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-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item.active {
      border-color: var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      padding: 18px 22px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      user-select: none;
    }

    .faq-toggle-icon {
      font-size: 18px;
      color: var(--primary-orange);
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fafafc;
      color: var(--text-sub);
      font-size: 14px;
      line-height: 1.7;
      padding: 0 22px;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 14px 22px 20px 22px;
      border-top: 1px solid #f0f0f4;
    }

    /* 资讯与百科 */
    .media-info-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .info-list-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 26px;
    }

    .info-list-card h3 {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .link-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .link-list li a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 14px;
      color: var(--text-sub);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      background: #fafafc;
    }

    .link-list li a:hover {
      background: var(--accent-light);
      color: var(--primary-orange);
      transform: translateX(4px);
    }

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

    .contact-info-panel h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 14px;
      color: var(--text-main);
    }

    .contact-info-panel p {
      color: var(--text-sub);
      font-size: 14px;
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .qr-contact-box {
      display: flex;
      align-items: center;
      gap: 20px;
      background: var(--accent-light);
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      margin-bottom: 24px;
    }

    .qr-contact-box img {
      width: 100px;
      height: 100px;
      border-radius: var(--radius-sm);
      display: block;
      background: #fff;
    }

    .qr-desc h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .qr-desc p {
      font-size: 13px;
      color: var(--text-sub);
      margin-bottom: 0;
    }

    .channel-meta {
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 13px;
      color: var(--text-sub);
    }

    .channel-meta strong {
      color: var(--text-main);
    }

    /* 表单组件 */
    .form-group {
      margin-bottom: 18px;
    }

    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 14px;
      border: 1px solid #dcdce2;
      border-radius: var(--radius-sm);
      background: #fafafc;
      transition: var(--transition);
      color: var(--text-main);
      outline: none;
    }

    .form-control:focus {
      border-color: var(--primary-orange);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(255, 94, 20, 0.12);
    }

    .btn-submit {
      width: 100%;
      padding: 13px 20px;
      background: linear-gradient(135deg, var(--accent-warm), var(--primary-orange));
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(255, 94, 20, 0.3);
      transition: var(--transition);
    }

    .btn-submit:hover {
      box-shadow: 0 6px 18px rgba(255, 94, 20, 0.42);
      transform: translateY(-1px);
    }

    /* 加盟代理专区 */
    .agent-cta-box {
      background: linear-gradient(135deg, #2b1f1d 0%, #1a1514 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 44px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
      box-shadow: var(--shadow-md);
    }

    .agent-text h3 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 10px;
      color: #fff;
    }

    .agent-text p {
      font-size: 15px;
      color: #c4c6cf;
      max-width: 600px;
      line-height: 1.7;
    }

    .btn-agent {
      padding: 14px 28px;
      background: linear-gradient(135deg, #ff7a38, #ff5e14);
      color: #ffffff !important;
      font-size: 15px;
      font-weight: 700;
      border-radius: 30px;
      white-space: nowrap;
      transition: var(--transition);
      box-shadow: 0 6px 20px rgba(255, 94, 20, 0.4);
    }

    .btn-agent:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(255, 94, 20, 0.6);
    }

    /* 友情链接与页脚 */
    .footer-section {
      background: #ffffff;
      border-top: 1px solid var(--border-light);
      padding: 50px 0 30px 0;
    }

    .footer-links-wrap {
      padding-bottom: 30px;
      border-bottom: 1px solid #f0f0f4;
      margin-bottom: 30px;
    }

    .footer-links-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .friendship-links {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friendship-links a {
      font-size: 13px;
      color: var(--text-sub);
      background: #f7f8fa;
      padding: 4px 10px;
      border-radius: 4px;
    }

    .friendship-links a:hover {
      color: var(--primary-orange);
      background: var(--accent-light);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .footer-bottom a {
      color: var(--text-sub);
    }

    .footer-bottom a:hover {
      color: var(--primary-orange);
    }

    /* 浮动客服 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
      cursor: pointer;
      color: var(--primary-orange);
      font-weight: 700;
      font-size: 13px;
      transition: var(--transition);
    }

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

    /* 响应式断点 */
    @media (max-width: 992px) {
      .cards-grid-3,
      .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-grid,
      .step-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid,
      .case-grid,
      .media-info-grid,
      .contact-form-layout {
        grid-template-columns: 1fr;
      }
      .nav-links {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .nav-menu.open .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #ffffff;
        padding: 16px 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
        border-bottom: 1px solid var(--border-light);
        gap: 8px;
      }
      .hero-title {
        font-size: 32px;
      }
      .agent-cta-box {
        flex-direction: column;
        text-align: center;
      }
    }

    @media (max-width: 600px) {
      .cards-grid-3,
      .testimonial-grid,
      .metrics-grid,
      .step-grid {
        grid-template-columns: 1fr;
      }
      .hero-section {
        padding: 60px 0 40px 0;
      }
      .hero-title {
        font-size: 26px;
      }
      .hero-subtitle {
        font-size: 15px;
      }
      .section-block {
        padding: 50px 0;
      }
      .section-title {
        font-size: 24px;
      }
      .review-summary-banner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
      }
      .review-score-box {
        flex-direction: column;
        gap: 8px;
      }
      .contact-form-layout {
        padding: 24px 16px;
      }
    }