:root {
      --primary-color: #7b2cbf;
      --primary-light: #9d4edd;
      --primary-lighter: #f3e8ff;
      --primary-deep: #5a189a;
      --accent-color: #c77dff;
      --accent-glow: rgba(157, 78, 221, 0.15);
      --text-main: #1f1b2e;
      --text-secondary: #574f6d;
      --text-muted: #8b839f;
      --bg-page: #faf7ff;
      --bg-surface: #ffffff;
      --bg-card: #fbf9ff;
      --border-color: #ede4f7;
      --border-focus: #c77dff;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 30px;
      --shadow-sm: 0 4px 12px rgba(123, 44, 191, 0.05);
      --shadow-md: 0 10px 25px rgba(123, 44, 191, 0.09);
      --shadow-lg: 0 16px 36px rgba(123, 44, 191, 0.14);
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    * {
      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-page);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部导航 */
    header.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(123, 44, 191, 0.04);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }

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

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

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

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

    .nav-links li a {
      font-size: 0.94rem;
      font-weight: 500;
      color: var(--text-secondary);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      display: block;
    }

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      border-radius: var(--radius-md);
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }

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

    .btn-md {
      padding: 12px 24px;
      font-size: 1rem;
    }

    .btn-lg {
      padding: 15px 32px;
      font-size: 1.1rem;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary-light), var(--primary-deep));
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(123, 44, 191, 0.35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(123, 44, 191, 0.45);
      color: #ffffff;
    }

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

    .btn-outline:hover {
      background-color: var(--primary-lighter);
      color: var(--primary-deep);
      transform: translateY(-2px);
    }

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

    /* 模块通用标题与排版 */
    section {
      padding: 72px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 52px;
    }

    .section-badge {
      display: inline-block;
      padding: 6px 16px;
      background-color: var(--primary-lighter);
      color: var(--primary-deep);
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: 999px;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
      border: 1px solid rgba(157, 78, 221, 0.2);
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* Hero 首屏 - 纯无图渐变科技质感 */
    .hero-section {
      background: radial-gradient(100% 120% at 50% 0%, #f7efff 0%, #faf7ff 70%, #ffffff 100%);
      padding: 88px 0 64px;
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

    .hero-section::before {
      content: "";
      position: absolute;
      top: -100px;
      left: 50%;
      transform: translateX(-50%);
      width: 700px;
      height: 400px;
      background: radial-gradient(circle, rgba(199, 125, 255, 0.22) 0%, rgba(247, 239, 255, 0) 70%);
      filter: blur(50px);
      z-index: 0;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid rgba(157, 78, 221, 0.3);
      border-radius: 999px;
      color: var(--primary-deep);
      font-weight: 600;
      font-size: 0.9rem;
      box-shadow: 0 4px 12px rgba(123, 44, 191, 0.08);
      margin-bottom: 24px;
      animation: floatBadge 3s ease-in-out infinite;
    }

    @keyframes floatBadge {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-4px); }
    }

    .hero-content h1 {
      font-size: 2.85rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 22px;
      letter-spacing: -1px;
    }

    .hero-content h1 span {
      background: linear-gradient(135deg, var(--primary-deep), var(--accent-color));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.2rem;
      color: var(--text-secondary);
      max-width: 780px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-action-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 54px;
      flex-wrap: wrap;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 36px;
    }

    .stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 16px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      text-align: center;
    }

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

    .stat-value {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary-deep);
      line-height: 1;
      margin-bottom: 6px;
    }

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

    /* 平台核心模型支持栏 */
    .model-tape {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 24px 0;
    }

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

    .model-tag {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      color: var(--text-secondary);
      padding: 6px 14px;
      border-radius: 999px;
      font-size: 0.85rem;
      font-weight: 600;
      transition: var(--transition);
    }

    .model-tag:hover {
      background: var(--primary-lighter);
      color: var(--primary-deep);
      border-color: var(--accent-color);
      transform: translateY(-2px);
    }

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

    .intro-text-box h3 {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
      line-height: 1.35;
    }

    .intro-text-box p {
      font-size: 1rem;
      color: var(--text-secondary);
      margin-bottom: 18px;
      line-height: 1.8;
    }

    .intro-feature-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-top: 24px;
    }

    .intro-feature-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--primary-deep);
    }

    .intro-feature-item::before {
      content: "✓";
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 22px;
      height: 22px;
      background: var(--primary-lighter);
      border-radius: 50%;
      color: var(--primary-color);
      font-size: 0.8rem;
    }

    .intro-visual-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .feature-point-box {
      margin-bottom: 22px;
      padding-bottom: 22px;
      border-bottom: 1px dashed var(--border-color);
    }

    .feature-point-box:last-child {
      margin-bottom: 0;
      padding-bottom: 0;
      border-bottom: none;
    }

    .feature-point-box h4 {
      font-size: 1.15rem;
      color: var(--primary-deep);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .feature-point-box p {
      font-size: 0.92rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 服务场景网格 */
    .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;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: var(--accent-color);
    }

    .service-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary-lighter), #ffffff);
      border: 1px solid var(--accent-color);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-deep);
      font-size: 1.3rem;
      margin-bottom: 20px;
    }

    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .service-card p {
      font-size: 0.94rem;
      color: var(--text-secondary);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .service-tags span {
      font-size: 0.78rem;
      background: var(--bg-card);
      color: var(--primary-deep);
      padding: 4px 10px;
      border-radius: 6px;
      border: 1px solid var(--border-color);
    }

    /* 素材画廊区 */
    .media-showcase-grid {
      display: grid;
      grid-template-columns: 2fr 1.2fr;
      gap: 28px;
      align-items: stretch;
    }

    .media-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 20px;
      box-shadow: var(--shadow-md);
      display: flex;
      flex-direction: column;
    }

    .media-img-wrapper {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 16px;
      background: #f0f0f0;
    }

    .media-img-wrapper img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.5s ease;
    }

    .media-img-wrapper img:hover {
      transform: scale(1.03);
    }

    .media-info h4 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .media-info p {
      font-size: 0.92rem;
      color: var(--text-secondary);
    }

    /* 对比评测表格 */
    .comparison-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-md);
      overflow-x: auto;
    }

    .eval-score-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 24px;
      background: linear-gradient(135deg, #f9f2ff, #ffffff);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 28px;
    }

    .score-badge-main {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary-deep);
    }

    .score-badge-main span {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-color);
      margin-left: 8px;
    }

    .score-stars {
      color: #ffb703;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }

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

    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .comp-table th,
    .comp-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    .comp-table th {
      background-color: var(--bg-card);
      color: var(--text-main);
      font-weight: 700;
    }

    .comp-table th.highlight-col,
    .comp-table td.highlight-col {
      background-color: rgba(243, 232, 255, 0.45);
      color: var(--primary-deep);
      font-weight: 600;
      border-left: 1px solid var(--border-color);
      border-right: 1px solid var(--border-color);
    }

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

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
      transition: var(--transition);
    }

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

    .step-number {
      width: 44px;
      height: 44px;
      line-height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-light), var(--primary-deep));
      color: #ffffff;
      font-weight: 800;
      margin: 0 auto 18px;
      font-size: 1.15rem;
      box-shadow: 0 4px 10px rgba(123, 44, 191, 0.25);
    }

    .step-card h4 {
      font-size: 1.15rem;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .step-card p {
      font-size: 0.9rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 需求匹配与表单 */
    .match-form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: start;
    }

    .form-info-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .form-info-card h3 {
      font-size: 1.6rem;
      color: var(--text-main);
      margin-bottom: 16px;
    }

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

    .form-contact-list {
      list-style: none;
      margin-bottom: 24px;
    }

    .form-contact-list li {
      margin-bottom: 12px;
      font-size: 0.95rem;
      color: var(--text-secondary);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .form-contact-list strong {
      color: var(--primary-deep);
    }

    .form-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

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

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background-color: var(--bg-card);
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary-color);
      background-color: #ffffff;
      box-shadow: 0 0 0 4px var(--accent-glow);
    }

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

    /* 客户评价网格 - 6条真实评价 */
    .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);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .review-stars {
      color: #ffb703;
      margin-bottom: 12px;
      font-size: 1rem;
    }

    .review-text {
      font-size: 0.94rem;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }

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

    .author-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-lighter);
      color: var(--primary-deep);
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      border: 1px solid var(--accent-color);
    }

    .author-info h5 {
      font-size: 0.95rem;
      color: var(--text-main);
      font-weight: 700;
    }

    .author-info span {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* FAQ 手风琴面板 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item:hover {
      border-color: var(--accent-color);
    }

    .faq-question {
      width: 100%;
      padding: 20px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-icon {
      font-size: 1.25rem;
      color: var(--primary-color);
      transition: transform 0.3s ease;
      line-height: 1;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.3s ease;
      padding: 0 24px;
      background-color: var(--bg-card);
      color: var(--text-secondary);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 16px 24px 22px;
      border-top: 1px solid var(--border-color);
    }

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

    /* 行业资讯与动态 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 30px;
    }

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

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

    .article-tag {
      align-self: flex-start;
      font-size: 0.8rem;
      color: var(--primary-deep);
      background: var(--primary-lighter);
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
      font-weight: 600;
    }

    .article-card h4 {
      font-size: 1.1rem;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }

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

    .article-link {
      font-size: 0.88rem;
      color: var(--primary-color);
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .article-link:hover {
      color: var(--primary-deep);
      text-decoration: underline;
    }

    .external-articles-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      padding: 18px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
    }

    .external-articles-links a {
      font-size: 0.88rem;
      color: var(--text-secondary);
      padding: 6px 14px;
      background: var(--bg-card);
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    .external-articles-links a:hover {
      background: var(--primary-lighter);
      color: var(--primary-color);
      border-color: var(--accent-color);
    }

    /* 加盟代理与商业转化 Banner */
    .partner-banner {
      background: linear-gradient(135deg, #2b0938, #5a189a);
      border-radius: var(--radius-xl);
      padding: 56px 40px;
      color: #ffffff;
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
      margin-top: 40px;
    }

    .partner-banner-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
      margin: 0 auto;
      text-align: center;
    }

    .partner-banner h3 {
      font-size: 2.2rem;
      font-weight: 800;
      margin-bottom: 18px;
      color: #ffffff;
    }

    .partner-banner p {
      font-size: 1.1rem;
      color: #e9d5ff;
      margin-bottom: 32px;
      line-height: 1.7;
    }

    .partner-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 36px;
    }

    .partner-stat-item {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(8px);
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .partner-stat-item .num {
      font-size: 1.8rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 4px;
    }

    .partner-stat-item .desc {
      font-size: 0.85rem;
      color: #e0aaff;
    }

    /* 页脚与友情链接 */
    footer.site-footer {
      background-color: #171224;
      color: #cdc6e2;
      padding: 64px 0 32px;
      border-top: 1px solid #2d2442;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 48px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1.1rem;
      margin-bottom: 20px;
      font-weight: 700;
      position: relative;
    }

    .footer-desc {
      font-size: 0.92rem;
      line-height: 1.7;
      margin-bottom: 20px;
      color: #aca2c7;
    }

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

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

    .footer-links li a {
      color: #cdc6e2;
      font-size: 0.9rem;
    }

    .footer-links li a:hover {
      color: #ffffff;
      padding-left: 4px;
    }

    .footer-qr-wrap {
      display: flex;
      align-items: center;
      gap: 16px;
      background: #251d38;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid #3d315b;
    }

    .footer-qr-wrap img {
      width: 80px;
      height: 80px;
      border-radius: 6px;
      display: block;
      background: #ffffff;
    }

    .qr-info h5 {
      color: #ffffff;
      font-size: 0.95rem;
      margin-bottom: 4px;
    }

    .qr-info p {
      font-size: 0.8rem;
      color: #aca2c7;
      line-height: 1.4;
    }

    .friend-links-box {
      border-top: 1px solid #2d2442;
      padding: 24px 0;
      margin-bottom: 24px;
    }

    .friend-links-title {
      font-size: 0.9rem;
      color: #8f84ad;
      margin-bottom: 12px;
      font-weight: 600;
    }

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

    .friend-links-list a {
      color: #aca2c7;
      font-size: 0.88rem;
    }

    .friend-links-list a:hover {
      color: #ffffff;
      text-decoration: underline;
    }

    .footer-bottom {
      border-top: 1px solid #2d2442;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: #8f84ad;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 悬浮工具栏与返回顶部 */
    .floating-widget {
      position: fixed;
      right: 24px;
      bottom: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-deep);
      font-size: 1.25rem;
      cursor: pointer;
      transition: var(--transition);
      position: relative;
    }

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

    .float-kefu:hover .kefu-popup {
      display: block;
    }

    .kefu-popup {
      display: none;
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px;
      box-shadow: var(--shadow-lg);
      width: 170px;
      text-align: center;
      z-index: 1000;
    }

    .kefu-popup img {
      width: 130px;
      height: 130px;
      display: block;
      margin: 0 auto 8px;
      border-radius: 6px;
    }

    .kefu-popup p {
      font-size: 0.82rem;
      color: var(--text-secondary);
      line-height: 1.4;
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .services-grid,
      .reviews-grid,
      .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
      .flow-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }

      .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }

      .nav-links.active {
        display: flex;
      }

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

      .nav-links li a {
        padding: 12px 0;
        border-bottom: 1px solid var(--border-color);
      }

      .hero-content h1 {
        font-size: 2.1rem;
      }

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

      .intro-grid,
      .media-showcase-grid,
      .match-form-grid {
        grid-template-columns: 1fr;
      }

      .services-grid,
      .reviews-grid,
      .articles-grid,
      .partner-stats {
        grid-template-columns: 1fr;
      }

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

      .flow-steps-grid {
        grid-template-columns: 1fr;
      }

      .eval-score-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }

      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }