/* 全局变量与配色：桃红艳丽企业风 */
    :root {
      --primary: #e11d48;         /* 桃红主色 */
      --primary-dark: #be123c;    /* 深深桃红 */
      --primary-light: #f43f5e;   /* 亮桃红 */
      --primary-subtle: #fff1f2;  /* 桃粉浅底 */
      --primary-border: #fecdd3;  /* 浅桃红边框 */
      --text-main: #0f172a;       /* 沉稳深色正文 */
      --text-muted: #475569;      /* 次级文本 */
      --text-light: #64748b;      /* 弱化文本 */
      --bg-body: #faf8f9;         /* 浅暖底色 */
      --bg-card: #ffffff;         /* 纯白卡片 */
      --border-color: #f1e4e8;    /* 通用分割线 */
      --shadow-sm: 0 2px 8px rgba(225, 29, 72, 0.06);
      --shadow-md: 0 8px 24px rgba(225, 29, 72, 0.08);
      --shadow-lg: 0 16px 36px rgba(225, 29, 72, 0.12);
      --radius: 12px;
      --transition: all 0.28s ease;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-body);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    /* 统一居中容器规范 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
    }

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

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

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

    .brand-text {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }

    /* 严格要求：.nav-links 的 gap 属性设置为 0 */
    .nav-links {
      gap: 0;
      display: flex;
      list-style: none;
      align-items: center;
      margin: 0;
      padding: 0;
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: 6px;
      transition: var(--transition);
    }

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

    .header-actions {
      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: 700;
      border-radius: 999px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #ffffff !important;
      box-shadow: 0 4px 15px rgba(225, 29, 72, 0.3);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-light), var(--primary));
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(225, 29, 72, 0.4);
    }

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

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

    .btn-sm {
      padding: 8px 16px;
      font-size: 0.88rem;
    }

    .btn-lg {
      padding: 14px 34px;
      font-size: 1.05rem;
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    /* 首屏 Hero：严格遵守首屏禁止出现图片 */
    .hero-section {
      position: relative;
      background: linear-gradient(180deg, #fff5f7 0%, #faf8f9 100%);
      padding: 70px 0 60px;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .hero-glow-1 {
      position: absolute;
      top: -100px;
      right: 5%;
      width: 450px;
      height: 450px;
      background: radial-gradient(circle, rgba(244, 63, 94, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
      pointer-events: none;
    }

    .hero-glow-2 {
      position: absolute;
      bottom: -80px;
      left: 0;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(225, 29, 72, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid var(--primary-border);
      border-radius: 999px;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-badge .dot {
      width: 8px;
      height: 8px;
      background-color: var(--primary);
      border-radius: 50%;
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.9); opacity: 0.8; }
      50% { transform: scale(1.3); opacity: 1; }
      100% { transform: scale(0.9); opacity: 0.8; }
    }

    /* H1 精准控制在20字内 */
    .hero-title {
      font-size: 2.85rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      letter-spacing: -1px;
      margin-bottom: 20px;
    }

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

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 34px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 15px;
    }

    .hero-stat-card {
      background: #ffffff;
      border: 1px solid var(--primary-border);
      border-radius: var(--radius);
      padding: 18px 14px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .hero-stat-number {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--primary-dark);
      display: block;
      margin-bottom: 4px;
      font-family: Arial, sans-serif;
    }

    .hero-stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 通用模块样式 */
    .section-padding {
      padding: 85px 0;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 800;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      background: var(--primary-subtle);
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 12px;
      border: 1px solid var(--primary-border);
    }

    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 聚合模型条形区域 */
    .models-bar-section {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 28px 0;
    }

    .models-bar-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-light);
      text-align: center;
      margin-bottom: 18px;
    }

    .models-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-chip {
      background: var(--bg-body);
      border: 1px solid var(--border-color);
      padding: 5px 13px;
      border-radius: 6px;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--text-muted);
      transition: var(--transition);
    }

    .model-chip:hover {
      background: var(--primary-subtle);
      border-color: var(--primary);
      color: var(--primary-dark);
      transform: translateY(-1px);
    }

    /* 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 18px;
      color: var(--text-main);
    }

    .about-text p {
      color: var(--text-muted);
      margin-bottom: 16px;
      font-size: 1rem;
      line-height: 1.75;
    }

    .about-features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }

    .feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }

    .feature-item .icon-box {
      width: 24px;
      height: 24px;
      background: var(--primary-subtle);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 800;
      flex-shrink: 0;
      font-size: 0.8rem;
    }

    .feature-item span {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .about-visual-card {
      background: linear-gradient(145deg, #ffffff, #fff5f7);
      border: 1px solid var(--primary-border);
      border-radius: var(--radius);
      padding: 32px;
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .about-visual-card h4 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 16px;
    }

    .stat-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .stat-bar-label {
      display: flex;
      justify-content: space-between;
      font-size: 0.88rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .stat-bar-bg {
      height: 8px;
      background: #f1e4e8;
      border-radius: 999px;
      overflow: hidden;
    }

    .stat-bar-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--primary-light), var(--primary));
      border-radius: 999px;
    }

    /* 场景矩阵与AIGC服务卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 26px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }

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

    .service-card-top {
      margin-bottom: 16px;
    }

    .service-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
      background: var(--primary-subtle);
      color: var(--primary);
      margin-bottom: 12px;
    }

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

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

    .service-card-bottom {
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 16px;
    }

    .service-card-bottom span {
      font-size: 0.82rem;
      color: var(--text-light);
    }

    .service-link {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
    }

    /* 对比评测板块 */
    .evaluation-box {
      background: #ffffff;
      border: 1px solid var(--primary-border);
      border-radius: 16px;
      padding: 40px;
      box-shadow: var(--shadow-lg);
    }

    .evaluation-top-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, #fff5f7, #ffe4e6);
      border: 1px solid var(--primary-border);
      border-radius: var(--radius);
      padding: 24px 30px;
      margin-bottom: 35px;
      flex-wrap: wrap;
      gap: 20px;
    }

    .score-badge-area {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-circle {
      width: 76px;
      height: 76px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      border-radius: 50%;
      color: #ffffff;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.4);
    }

    .score-circle .number {
      font-size: 1.7rem;
      font-weight: 900;
      line-height: 1;
    }

    .score-circle .unit {
      font-size: 0.7rem;
      opacity: 0.9;
    }

    .score-info h4 {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.15rem;
      letter-spacing: 2px;
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
      -webkit-overflow-scrolling: touch;
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 680px;
    }

    .eval-table th,
    .eval-table td {
      padding: 16px 18px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }

    .eval-table th {
      background: #faf8f9;
      font-weight: 700;
      color: var(--text-main);
    }

    .eval-table th.highlight-col,
    .eval-table td.highlight-col {
      background: #fff5f7;
      color: var(--primary-dark);
      font-weight: 700;
    }

    /* Token 比价板块 */
    .pricing-table-container {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .pricing-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 640px;
    }

    .pricing-table th,
    .pricing-table td {
      padding: 16px 20px;
      text-align: left;
      font-size: 0.92rem;
      border-bottom: 1px solid var(--border-color);
    }

    .pricing-table th {
      background: #faf8f9;
      font-weight: 700;
      color: var(--text-main);
    }

    .price-discount-tag {
      background: #10b981;
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 999px;
      margin-left: 6px;
    }

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

    .flow-step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px 20px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .step-number {
      width: 44px;
      height: 44px;
      background: var(--primary-subtle);
      border: 2px solid var(--primary-border);
      border-radius: 50%;
      color: var(--primary);
      font-size: 1.15rem;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 案例展示中心 (含图片按要求响应式插入) */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      margin-bottom: 30px;
    }

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

    .case-media-box .ai-page-image,
    .case-media-box img {
      width: 100%;
      height: auto;
      border-radius: 8px;
      display: block;
      object-fit: cover;
    }

    .case-info-meta {
      margin-top: 12px;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .banners-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    /* 客户评价板块 (6条) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

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

    .review-quote {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 18px;
      position: relative;
    }

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

    .user-avatar-circle {
      width: 42px;
      height: 42px;
      background: var(--primary-subtle);
      border: 1px solid var(--primary-border);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 800;
      font-size: 0.95rem;
    }

    .user-meta-name {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

    /* 加盟代理与被动收益专区 */
    .agent-cta-card {
      background: linear-gradient(135deg, #fff1f2, #ffe4e6);
      border: 1px solid var(--primary-border);
      border-radius: 16px;
      padding: 45px 40px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 30px;
      align-items: center;
      box-shadow: var(--shadow-md);
    }

    .agent-text h3 {
      font-size: 1.95rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 14px;
    }

    .agent-text p {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .agent-perks {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    .agent-perks li {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .agent-perks li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 900;
    }

    /* FAQ 手风琴 */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }

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

    .faq-question {
      padding: 18px 22px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
      user-select: none;
    }

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

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

    .faq-item.active .faq-icon {
      transform: rotate(180deg);
    }

    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    /* 行业资讯与百科文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 30px;
    }

    .article-links-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: var(--shadow-sm);
    }

    .article-links-card h4 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
      border-bottom: 2px solid var(--primary-subtle);
      padding-bottom: 8px;
    }

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

    .article-url-list li a {
      font-size: 0.92rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 8px 12px;
      background: var(--bg-body);
      border-radius: 6px;
      transition: var(--transition);
    }

    .article-url-list li a:hover {
      color: var(--primary);
      background: var(--primary-subtle);
    }

    /* 需求表单与联系我们 */
    .contact-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 45px;
      box-shadow: var(--shadow-lg);
    }

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

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 0.92rem;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      background: #ffffff;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

    .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;
    }

    .contact-info-panel {
      background: linear-gradient(145deg, #fff5f7, #ffffff);
      border: 1px solid var(--primary-border);
      border-radius: var(--radius);
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-details-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin: 20px 0;
    }

    .contact-details-list li {
      font-size: 0.92rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .contact-details-list li strong {
      color: var(--text-main);
      width: 90px;
      flex-shrink: 0;
    }

    .qr-container {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 14px;
      background: #ffffff;
      border: 1px solid var(--primary-border);
      border-radius: 8px;
    }

    .qr-container img {
      width: 84px;
      height: 84px;
      border-radius: 6px;
      object-fit: cover;
    }

    .qr-text h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .qr-text p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 页脚与友情链接规范 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 55px 0 25px;
      color: var(--text-muted);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
      gap: 35px;
      margin-bottom: 40px;
    }

    .footer-col h5 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
      border-left: 3px solid var(--primary);
      padding-left: 8px;
    }

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

    .footer-nav li a {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

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

    .friend-links-area {
      border-top: 1px solid var(--border-color);
      padding-top: 25px;
      margin-bottom: 25px;
    }

    .friend-links-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

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

    .friend-links-list a {
      font-size: 0.85rem;
      color: var(--text-muted);
      background: var(--bg-body);
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid var(--border-color);
    }

    .friend-links-list a:hover {
      color: var(--primary);
      border-color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 22px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: var(--text-light);
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 悬浮客服与返回顶部小部件 */
    .floating-widget {
      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;
      border: 1px solid var(--primary-border);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      transition: var(--transition);
      font-size: 1.15rem;
    }

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

    /* 响应式适配 */
    @media (max-width: 992px) {
      .nav-links {
        display: none;
      }

      .mobile-menu-toggle {
        display: block;
      }

      .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 20px;
        box-shadow: var(--shadow-lg);
        gap: 8px !important;
      }

      .nav-links.mobile-open li {
        width: 100%;
      }

      .nav-links.mobile-open li a {
        display: block;
        padding: 10px 14px;
      }

      .hero-title {
        font-size: 2.2rem;
      }

      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .about-grid,
      .contact-layout,
      .agent-cta-card,
      .case-gallery-grid,
      .articles-grid {
        grid-template-columns: 1fr;
      }

      .services-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }

      .banners-strip {
        grid-template-columns: repeat(2, 1fr);
      }

      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 640px) {
      .hero-title {
        font-size: 1.85rem;
      }

      .services-grid,
      .reviews-grid,
      .flow-steps,
      .hero-stats-grid,
      .banners-strip,
      .footer-top-grid,
      .about-features,
      .agent-perks {
        grid-template-columns: 1fr;
      }

      .contact-layout {
        padding: 24px 18px;
      }

      .evaluation-box {
        padding: 20px 16px;
      }

      .evaluation-top-banner {
        padding: 18px;
      }
    }