:root {
      --primary-yellow: #FFD200;
      --primary-hover: #F5C500;
      --yellow-light: #FFFDE6;
      --yellow-tint: #FEF9C3;
      --text-main: #0F172A;
      --text-secondary: #475569;
      --text-muted: #64748B;
      --bg-page: #FAF9F6;
      --bg-card: #FFFFFF;
      --border-color: #E2E8F0;
      --accent-black: #1E293B;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 10px 25px -5px rgba(255, 210, 0, 0.15), 0 8px 10px -6px rgba(0,0,0,0.05);
      --shadow-lg: 0 20px 30px -10px rgba(0,0,0,0.08);
      --radius: 12px;
    }

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

    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: 1.65;
      font-size: 15px;
      overflow-x: hidden;
      background-image: radial-gradient(circle at 10% 20%, rgba(255, 210, 0, 0.08) 0%, transparent 40%),
                        radial-gradient(circle at 90% 80%, rgba(255, 210, 0, 0.06) 0%, transparent 40%);
      background-attachment: fixed;
    }

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

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }

    /* 顶部导航 */
    header.site-header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--primary-yellow);
      position: sticky;
      top: 0;
      z-index: 1000;
      transition: background 0.3s;
    }

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

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

    .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
    }

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .brand-badge {
      background: var(--primary-yellow);
      font-size: 11px;
      padding: 2px 6px;
      border-radius: 4px;
      color: #000;
      font-weight: 700;
    }

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

    .nav-links li a {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-secondary);
      padding: 8px 12px;
      border-radius: 6px;
      display: inline-block;
    }

    .nav-links li a:hover {
      color: #000;
      background-color: var(--yellow-tint);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn-main-site {
      background: var(--primary-yellow);
      color: #000;
      font-weight: 700;
      padding: 9px 18px;
      border-radius: 30px;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 3px 10px rgba(255, 210, 0, 0.4);
      border: 1px solid rgba(0,0,0,0.05);
    }

    .btn-main-site:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 首屏 HERO（纯代码动效，绝对不出现任何图片） */
    .hero-section {
      padding: 80px 0 60px;
      position: relative;
      overflow: hidden;
      background: linear-gradient(180deg, #FFFFFF 0%, rgba(255, 249, 219, 0.35) 100%);
      border-bottom: 1px solid var(--border-color);
    }

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

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FFFFFF;
      border: 1px solid #FDE047;
      padding: 6px 16px;
      border-radius: 50px;
      font-size: 13px;
      font-weight: 600;
      color: #854D0E;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-tag span.dot {
      width: 8px;
      height: 8px;
      background: #EAB308;
      border-radius: 50%;
      display: inline-block;
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(234, 179, 8, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(234, 179, 8, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(234, 179, 8, 0); }
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title .highlight {
      background: linear-gradient(120deg, #FFD200 0%, #FBBF24 100%);
      padding: 0 8px;
      border-radius: 4px;
      color: #000;
      display: inline-block;
    }

    .hero-sub {
      font-size: 17px;
      color: var(--text-secondary);
      max-width: 780px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-hero-primary {
      background: var(--primary-yellow);
      color: #000;
      font-size: 16px;
      font-weight: 800;
      padding: 14px 34px;
      border-radius: 8px;
      box-shadow: 0 8px 20px rgba(255, 210, 0, 0.45);
      border: 2px solid #EAB308;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 12px 24px rgba(255, 210, 0, 0.55);
    }

    .btn-hero-secondary {
      background: #FFFFFF;
      color: var(--text-main);
      font-size: 16px;
      font-weight: 700;
      padding: 14px 28px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .btn-hero-secondary:hover {
      background: #F8FAFC;
      border-color: #CBD5E1;
    }

    /* 纯CSS首屏科技数据仪表盘 */
    .hero-metric-panel {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: #FFFFFF;
      padding: 24px;
      border-radius: 16px;
      border: 1px solid rgba(255, 210, 0, 0.3);
      box-shadow: var(--shadow-md);
      text-align: left;
    }

    .metric-card {
      border-right: 1px solid var(--border-color);
      padding: 0 16px;
    }

    .metric-card:last-child {
      border-right: none;
    }

    .metric-num {
      font-size: 30px;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.1;
      display: flex;
      align-items: baseline;
      gap: 4px;
    }

    .metric-num small {
      font-size: 14px;
      font-weight: 600;
      color: #CA8A04;
    }

    .metric-label {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 6px;
      font-weight: 500;
    }

    /* 通用Section */
    .section {
      padding: 80px 0;
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 50px;
    }

    .section-eyebrow {
      display: inline-block;
      background: var(--yellow-tint);
      color: #854D0E;
      font-weight: 700;
      font-size: 12px;
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 30px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-subtitle {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 平台支持模型标签滚动条 */
    .model-badge-belt {
      margin-top: 36px;
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-chip {
      background: #FFFFFF;
      border: 1px solid #E2E8F0;
      padding: 6px 14px;
      border-radius: 6px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-secondary);
      box-shadow: var(--shadow-sm);
      transition: all 0.2s;
    }

    .model-chip:hover {
      border-color: #EAB308;
      background: var(--yellow-light);
      color: #854D0E;
      transform: translateY(-2px);
    }

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

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

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
      align-items: center;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
      overflow: hidden;
    }

    .feature-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: transparent;
      transition: background 0.3s;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: #FDE047;
    }

    .feature-card:hover::before {
      background: var(--primary-yellow);
    }

    .card-icon {
      width: 52px;
      height: 52px;
      background: var(--yellow-light);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 20px;
      border: 1px solid #FEF08A;
      color: #854D0E;
    }

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

    .feature-card p {
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.6;
    }

    /* 真实图片展示容器 */
    .media-card {
      background: #FFFFFF;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .media-card .img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #F1F5F9;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .media-card .img-wrap.square {
      aspect-ratio: 1 / 1;
    }

    .media-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s;
    }

    .media-card:hover img {
      transform: scale(1.04);
    }

    .media-card .info {
      padding: 18px;
    }

    .media-card .info h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .media-card .info p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 宣传图画廊 */
    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 30px;
    }

    .banner-item {
      background: #FFF;
      border-radius: 10px;
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .banner-item img {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 对比评测专属板块 */
    .eval-highlight-box {
      background: linear-gradient(135deg, #FFFDE6 0%, #FFFFFF 100%);
      border: 2px solid #FDE047;
      border-radius: 16px;
      padding: 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 36px;
      box-shadow: var(--shadow-md);
    }

    .eval-score-view {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .eval-badge-circle {
      width: 86px;
      height: 86px;
      background: var(--primary-yellow);
      border-radius: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 0 6px 15px rgba(255, 210, 0, 0.4);
      border: 2px solid #FFFFFF;
    }

    .eval-badge-circle .score {
      font-size: 26px;
      font-weight: 900;
      color: #000;
      line-height: 1;
    }

    .eval-badge-circle .scale {
      font-size: 11px;
      color: #713F12;
      font-weight: 700;
    }

    .eval-meta h3 {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .eval-stars {
      color: #EAB308;
      font-size: 18px;
      letter-spacing: 2px;
    }

    .eval-desc {
      font-size: 14px;
      color: var(--text-secondary);
      max-width: 580px;
    }

    /* 专业对比表格 */
    .table-container {
      background: #FFFFFF;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      overflow-x: auto;
    }

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

    .eval-table th, .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }

    .eval-table th {
      background: #F8FAFC;
      font-weight: 700;
      color: var(--text-main);
    }

    .eval-table th.highlight-col, .eval-table td.highlight-col {
      background: rgba(255, 249, 219, 0.4);
      font-weight: 600;
      color: #854D0E;
    }

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

    .check-yes {
      color: #16A34A;
      font-weight: 700;
    }

    .check-no {
      color: #94A3B8;
    }

    /* 流程步骤 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }

    .flow-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px 16px;
      text-align: center;
      position: relative;
    }

    .flow-step-num {
      width: 36px;
      height: 36px;
      background: var(--primary-yellow);
      color: #000;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px;
      font-size: 15px;
    }

    .flow-card h4 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .flow-card p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .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-content {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
      margin-bottom: 18px;
      font-style: italic;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 14px;
    }

    .author-avatar-text {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-yellow);
      color: #000;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
    }

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

    .author-meta .role {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* FAQ 手风琴 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      margin-bottom: 12px;
      overflow: hidden;
      transition: all 0.2s;
    }

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

    .faq-question:hover {
      background: #F8FAFC;
    }

    .faq-arrow {
      transition: transform 0.25s ease;
      font-size: 12px;
      color: #94A3B8;
    }

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

    .faq-item.active {
      border-color: #FDE047;
      box-shadow: 0 4px 12px rgba(255, 210, 0, 0.1);
    }

    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
      color: #CA8A04;
    }

    .faq-item.active .faq-answer {
      padding: 0 22px 18px 22px;
      max-height: 240px;
    }

    /* 表单与联系模块 */
    .contact-form-layout {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      background: #F8FAFC;
      transition: border-color 0.2s;
      font-family: inherit;
      outline: none;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: #EAB308;
      background: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(255, 210, 0, 0.2);
    }

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

    .btn-submit {
      width: 100%;
      background: var(--primary-yellow);
      color: #000;
      font-weight: 800;
      padding: 14px;
      border-radius: 8px;
      font-size: 15px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(255, 210, 0, 0.4);
      transition: background 0.2s, transform 0.1s;
    }

    .btn-submit:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }

    .contact-info-panel {
      background: #FAF9F6;
      border-radius: 12px;
      padding: 28px;
      border: 1px solid #E2E8F0;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .info-list-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 18px;
      font-size: 14px;
    }

    .info-list-item strong {
      color: var(--text-main);
      min-width: 70px;
    }

    .qr-container {
      text-align: center;
      background: #FFFFFF;
      padding: 16px;
      border-radius: 8px;
      border: 1px solid #E2E8F0;
      margin-top: 16px;
    }

    .qr-container img {
      width: 130px;
      height: 130px;
      display: block;
      margin: 0 auto 8px;
      border-radius: 4px;
    }

    .qr-container span {
      font-size: 12px;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 行业资讯 & 最新文章 */
    .article-links-container {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      padding: 20px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }

    .article-card h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .article-card p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 14px;
    }

    .article-card .read-link {
      font-size: 13px;
      color: #B45309;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .article-card .read-link:hover {
      text-decoration: underline;
    }

    /* 友情链接区与页脚 */
    .friend-links-box {
      margin-top: 50px;
      padding: 24px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      text-align: center;
    }

    .friend-links-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
    }

    .friend-links-list a {
      font-size: 13px;
      color: var(--text-secondary);
      background: #F8FAFC;
      padding: 6px 14px;
      border-radius: 6px;
      border: 1px solid #E2E8F0;
    }

    .friend-links-list a:hover {
      color: #000;
      background: var(--yellow-tint);
      border-color: #FDE047;
    }

    /* 统一规范页脚 */
    footer.site-footer {
      background: #111827;
      color: #9CA3AF;
      padding: 50px 0 30px;
      border-top: 4px solid var(--primary-yellow);
    }

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

    .footer-col h4 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
      border-left: 3px solid var(--primary-yellow);
      padding-left: 8px;
    }

    .footer-col ul {
      list-style: none;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul li a {
      color: #9CA3AF;
      font-size: 13px;
    }

    .footer-col ul li a:hover {
      color: var(--primary-yellow);
    }

    .footer-bottom {
      border-top: 1px solid #1F2937;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    .footer-bottom p {
      color: #6B7280;
    }

    .footer-bottom a {
      color: #9CA3AF;
    }

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

    /* 悬浮客服面板 */
    .float-service-bar {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-item-btn {
      width: 48px;
      height: 48px;
      background: var(--primary-yellow);
      color: #000;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      box-shadow: 0 4px 14px rgba(0,0,0,0.15);
      border: 2px solid #FFFFFF;
      cursor: pointer;
      position: relative;
      transition: transform 0.2s;
    }

    .float-item-btn:hover {
      transform: scale(1.1);
    }

    .float-pop-qr {
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #FFFFFF;
      padding: 12px;
      border-radius: 8px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      display: none;
      width: 140px;
      text-align: center;
    }

    .float-pop-qr img {
      width: 100%;
      height: auto;
      display: block;
      margin-bottom: 6px;
    }

    .float-pop-qr span {
      font-size: 11px;
      color: var(--text-main);
      font-weight: 700;
    }

    .float-item-btn:hover .float-pop-qr {
      display: block;
    }

    /* 响应式媒体查询 */
    @media (max-width: 992px) {
      .hero-title { font-size: 32px; }
      .hero-metric-panel { grid-template-columns: repeat(2, 1fr); gap: 20px; }
      .grid-4, .banner-gallery { grid-template-columns: repeat(2, 1fr); }
      .grid-3, .reviews-grid, .article-links-container { grid-template-columns: repeat(2, 1fr); }
      .flow-steps { grid-template-columns: repeat(3, 1fr); }
      .contact-form-layout { grid-template-columns: 1fr; }
      .footer-inner { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .header-inner { height: 64px; }
      .mobile-menu-btn { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
      }
      .nav-links.show { display: flex; }
      .nav-links li { width: 100%; }
      .nav-links li a { display: block; padding: 10px; }
      .hero-section { padding: 50px 0 40px; }
      .hero-title { font-size: 26px; }
      .hero-metric-panel { grid-template-columns: 1fr; }
      .metric-card { border-right: none; border-bottom: 1px solid var(--border-color); padding: 10px 0; }
      .metric-card:last-child { border-bottom: none; }
      .grid-3, .grid-4, .banner-gallery, .reviews-grid, .article-links-container, .flow-steps { grid-template-columns: 1fr; }
      .eval-highlight-box { flex-direction: column; text-align: center; }
      .eval-score-view { flex-direction: column; }
      .footer-inner { grid-template-columns: 1fr; }
    }