:root {
      --primary: #c9182b;
      --primary-dark: #9e0e1e;
      --primary-light: #fbebee;
      --primary-hover: #b01223;
      --accent-gold: #d49a37;
      --text-main: #1f2329;
      --text-muted: #5f6672;
      --text-light: #8f95a0;
      --bg-page: #fbf9f9;
      --bg-surface: #ffffff;
      --bg-alt: #f6f2f3;
      --border-color: #ede2e3;
      --shadow-sm: 0 2px 8px rgba(193, 24, 43, 0.05);
      --shadow-md: 0 8px 24px rgba(193, 24, 43, 0.08);
      --shadow-lg: 0 16px 36px rgba(193, 24, 43, 0.12);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --container-width: 1200px;
      --transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    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-page);
      color: var(--text-main);
      line-height: 1.6;
      background-image: 
        radial-gradient(circle at 10% 0%, rgba(201, 24, 43, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 90% 100%, rgba(201, 24, 43, 0.02) 0%, transparent 40%);
      background-attachment: fixed;
      overflow-x: hidden;
    }

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

    ul, ol {
      list-style: none;
    }

    img {
      display: block;
      max-width: 100%;
      height: auto;
    }

    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

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

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

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

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

    .nav-menu {
      display: flex;
      align-items: center;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links a {
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
    }

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

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: 20px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 0.95rem;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
      text-align: center;
    }

    .btn-primary {
      background: var(--primary);
      color: #ffffff !important;
      box-shadow: 0 4px 12px rgba(201, 24, 43, 0.25);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 6px 16px rgba(201, 24, 43, 0.35);
      transform: translateY(-1px);
    }

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

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

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      background: none;
      border: none;
      padding: 6px;
    }

    .menu-toggle span {
      width: 24px;
      height: 2px;
      background: var(--text-main);
      transition: var(--transition);
    }

    /* 首屏 Hero (不含图片) */
    .hero-section {
      position: relative;
      padding: 84px 0 60px;
      overflow: hidden;
      background: linear-gradient(175deg, #ffffff 0%, #fff7f7 50%, #fbeded 100%);
      border-bottom: 1px solid var(--border-color);
    }

    .hero-bg-shapes {
      position: absolute;
      inset: 0;
      pointer-events: none;
      z-index: 1;
    }

    .hero-circle {
      position: absolute;
      border-radius: 50%;
      filter: blur(60px);
      opacity: 0.6;
    }

    .circle-1 {
      width: 480px;
      height: 480px;
      top: -120px;
      right: -80px;
      background: rgba(201, 24, 43, 0.08);
    }

    .circle-2 {
      width: 380px;
      height: 380px;
      bottom: -60px;
      left: -60px;
      background: rgba(212, 154, 55, 0.08);
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: var(--primary-light);
      border: 1px solid rgba(201, 24, 43, 0.2);
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 24px;
      box-shadow: 0 2px 6px rgba(201, 24, 43, 0.06);
    }

    .hero-title {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.25;
      color: #1a1e26;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

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

    .hero-title .highlight::after {
      content: "";
      position: absolute;
      bottom: 4px;
      left: 0;
      width: 100%;
      height: 8px;
      background: rgba(201, 24, 43, 0.15);
      z-index: -1;
      border-radius: 4px;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .hero-cta-group .btn-lg {
      padding: 14px 34px;
      font-size: 1.05rem;
      border-radius: var(--radius-md);
    }

    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      padding: 24px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .stat-card {
      text-align: center;
      padding: 12px;
      border-right: 1px solid #f0e6e7;
    }

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

    .stat-num {
      font-size: 1.9rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      margin-bottom: 4px;
      font-family: inherit;
    }

    .stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 模块通用头 */
    .section {
      padding: 80px 0;
      position: relative;
    }

    .section-alt {
      background-color: var(--bg-alt);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 52px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 10px;
      padding: 3px 12px;
      background: var(--primary-light);
      border-radius: 20px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: #171a20;
      margin-bottom: 14px;
      line-height: 1.35;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 模型矩阵展示 */
    .model-tags-container {
      margin-top: 36px;
      text-align: center;
    }

    .model-tags-title {
      font-size: 0.9rem;
      color: var(--text-light);
      margin-bottom: 14px;
      font-weight: 600;
    }

    .model-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      max-width: 1080px;
      margin: 0 auto;
    }

    .model-tag {
      background: #ffffff;
      border: 1px solid #ebd9db;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.82rem;
      font-weight: 600;
      color: #404854;
      transition: var(--transition);
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
    }

    .model-tag:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    /* 关于我们 / 平台能力 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-content h3 {
      font-size: 1.7rem;
      font-weight: 800;
      color: #1a1e24;
      margin-bottom: 18px;
      line-height: 1.4;
    }

    .about-content p {
      font-size: 1rem;
      color: var(--text-muted);
      margin-bottom: 22px;
      line-height: 1.75;
    }

    .about-feature-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 28px;
    }

    .feature-item-inline {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .feature-icon-bullet {
      width: 20px;
      height: 20px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      flex-shrink: 0;
      margin-top: 3px;
    }

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

    .about-image-card img {
      border-radius: var(--radius-md);
      width: 100%;
      height: auto;
      object-fit: cover;
    }

    /* AIGC 服务卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

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

    .service-card-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 16px;
    }

    .service-badge-mini {
      font-size: 0.75rem;
      padding: 3px 10px;
      border-radius: 12px;
      font-weight: 700;
      background: #fff4f5;
      color: var(--primary);
    }

    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: #1a1e24;
      margin-bottom: 12px;
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 18px;
    }

    .service-points {
      padding-top: 14px;
      border-top: 1px dashed #f0e2e4;
      font-size: 0.82rem;
      color: var(--text-light);
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .service-point-tag {
      background: #f8f6f6;
      padding: 3px 8px;
      border-radius: 4px;
      color: #555d6b;
    }

    /* 一站式创作工作流 */
    .workflow-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .workflow-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .workflow-step {
      width: 44px;
      height: 44px;
      margin: 0 auto 16px;
      background: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
      box-shadow: 0 4px 10px rgba(201, 24, 43, 0.3);
    }

    .workflow-item h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: #1a1e24;
    }

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

    /* 行业解决方案 */
    .industry-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .industry-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      display: flex;
      gap: 20px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }

    .industry-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
    }

    .industry-icon-box {
      width: 54px;
      height: 54px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 800;
      flex-shrink: 0;
    }

    .industry-info h4 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: #1c2026;
    }

    .industry-info p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 12px;
    }

    .industry-features {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .industry-tag {
      font-size: 0.78rem;
      padding: 2px 8px;
      border-radius: 4px;
      background: #fdf2f3;
      color: var(--primary);
      font-weight: 600;
    }

    /* 对比评测 板块 (核心要求) */
    .eval-highlight-box {
      background: #ffffff;
      border: 2px solid var(--primary);
      border-radius: var(--radius-lg);
      padding: 32px;
      margin-bottom: 40px;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

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

    .eval-big-score {
      font-size: 3.4rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .eval-meta h4 {
      font-size: 1.2rem;
      font-weight: 800;
      color: #171a20;
      margin-bottom: 4px;
    }

    .eval-stars {
      color: #ff9800;
      font-size: 1.2rem;
      letter-spacing: 2px;
      margin-bottom: 4px;
    }

    .eval-meta span {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .eval-summary-text {
      max-width: 600px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .comparison-table-wrap {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
      min-width: 720px;
    }

    .eval-table th,
    .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f0e6e7;
    }

    .eval-table th {
      background: #fbf5f5;
      font-weight: 700;
      color: #1e2229;
    }

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

    .eval-table tr:hover td {
      background: #fffcfc;
    }

    .eval-col-prime {
      color: var(--primary);
      font-weight: 700;
      background: #fff9fa;
    }

    .eval-tag-good {
      color: #0b8a36;
      font-weight: 600;
    }

    .eval-tag-bad {
      color: #9aa1ad;
    }

    /* 案例中心 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

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

    .case-img-wrap {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 9;
      background: #eee;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .case-content {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .case-tag {
      font-size: 0.75rem;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 8px;
    }

    .case-content h4 {
      font-size: 1.2rem;
      font-weight: 700;
      color: #191c22;
      margin-bottom: 10px;
    }

    .case-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .case-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: var(--text-light);
      padding-top: 12px;
      border-top: 1px solid #f2e9eb;
    }

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

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

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

    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }

    .review-avatar-text {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }

    .review-user-info h5 {
      font-size: 1rem;
      font-weight: 700;
      color: #1a1e24;
    }

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

    .review-stars {
      color: #ff9800;
      font-size: 0.85rem;
      letter-spacing: 2px;
      margin-bottom: 12px;
    }

    .review-text {
      font-size: 0.92rem;
      color: #3b424e;
      line-height: 1.65;
    }

    /* 需求匹配与表单 */
    .contact-form-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .contact-info-col h3 {
      font-size: 1.8rem;
      font-weight: 800;
      color: #1a1e26;
      margin-bottom: 16px;
    }

    .contact-info-col p {
      font-size: 0.96rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 28px;
    }

    .contact-detail-items {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 30px;
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .contact-item-icon {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }

    .qr-box-wrap {
      display: inline-block;
      padding: 12px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
    }

    .qr-box-wrap img {
      width: 140px;
      height: 140px;
      object-fit: cover;
      margin: 0 auto 8px;
    }

    .qr-box-wrap span {
      font-size: 0.8rem;
      color: var(--text-muted);
      display: block;
    }

    .form-col 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: #272d37;
    }

    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border-radius: var(--radius-sm);
      border: 1px solid #dcd3d4;
      font-size: 0.95rem;
      background: #faf8f8;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      outline: none;
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(201, 24, 43, 0.1);
    }

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

    /* FAQ 折叠面板 */
    .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-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item:hover {
      border-color: #e4c2c5;
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: #1a1e24;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-toggle-icon {
      width: 24px;
      height: 24px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
      transition: transform 0.25s ease;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease;
      background: #fdfbfb;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      padding: 0 24px;
    }

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

    .faq-item.active .faq-answer {
      max-height: 220px;
      padding: 0 24px 20px 24px;
      border-top: 1px solid #f6eff0;
    }

    /* 文章与百科外链 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .article-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .article-item h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.5;
      color: #1a1e24;
    }

    .article-item p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .article-link-btn {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

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

    /* 代理加盟与宣传 Banner */
    .banner-cta-section {
      background: linear-gradient(135deg, #b81425 0%, #7d0b17 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 48px 40px;
      margin: 40px auto 0;
      box-shadow: var(--shadow-lg);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 32px;
    }

    .banner-cta-text h3 {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 12px;
      line-height: 1.3;
    }

    .banner-cta-text p {
      font-size: 1.05rem;
      opacity: 0.9;
      max-width: 650px;
      line-height: 1.6;
    }

    .banner-cta-actions {
      display: flex;
      gap: 16px;
    }

    .btn-gold {
      background: var(--accent-gold);
      color: #ffffff !important;
      font-weight: 700;
    }

    .btn-gold:hover {
      background: #be882e;
    }

    /* 宣传图展示位 */
    .promo-banner-wrap {
      margin-top: 36px;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .promo-banner-wrap .ai-page-image {
      width: 100%;
      height: auto;
      object-fit: cover;
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 56px 0 24px;
      margin-top: 40px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin: 16px 0 20px;
      max-width: 320px;
    }

    .footer-col h4 {
      font-size: 1rem;
      font-weight: 700;
      color: #1a1e24;
      margin-bottom: 18px;
      position: relative;
    }

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

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

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

    .friend-links-wrap {
      padding: 20px 0;
      border-top: 1px solid #f2e9eb;
      border-bottom: 1px solid #f2e9eb;
      margin-bottom: 24px;
    }

    .friend-links-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 10px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

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

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

    /* 浮动客服入口 */
    .float-kefu-widget {
      position: fixed;
      right: 24px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      background: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      box-shadow: 0 4px 16px rgba(201, 24, 43, 0.35);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      position: relative;
      transition: var(--transition);
      border: none;
    }

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

    .float-qr-popover {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 14px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      display: none;
      width: 170px;
      text-align: center;
    }

    .float-qr-popover img {
      width: 140px;
      height: 140px;
      margin: 0 auto 6px;
    }

    .float-qr-popover span {
      font-size: 0.78rem;
      color: var(--text-muted);
      display: block;
    }

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

    .back-to-top {
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .back-to-top:hover {
      background: var(--primary-light);
      color: var(--primary);
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 2.2rem;
      }
      .hero-stats-row {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid,
      .reviews-grid,
      .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid,
      .industry-grid,
      .contact-form-layout {
        grid-template-columns: 1fr;
      }
      .workflow-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        flex-direction: column;
        align-items: flex-start;
        display: none;
        box-shadow: var(--shadow-md);
      }
      .nav-menu.show {
        display: flex;
      }
      .nav-links {
        flex-direction: column;
        width: 100%;
        align-items: flex-start;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 0;
      }
      .nav-actions {
        margin: 16px 0 0 0;
        width: 100%;
        flex-direction: column;
      }
      .nav-actions .btn {
        width: 100%;
      }
      .menu-toggle {
        display: flex;
      }
      .hero-title {
        font-size: 1.8rem;
      }
      .hero-desc {
        font-size: 1rem;
      }
      .hero-stats-row {
        grid-template-columns: 1fr;
      }
      .services-grid,
      .reviews-grid,
      .articles-grid,
      .cases-grid,
      .workflow-timeline {
        grid-template-columns: 1fr;
      }
      .banner-cta-section {
        padding: 32px 20px;
      }
      .banner-cta-text h3 {
        font-size: 1.5rem;
      }
      .eval-highlight-box {
        flex-direction: column;
        align-items: flex-start;
      }
      .contact-form-layout {
        padding: 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }