/* 缤纷糖果亮色风全局样式定义 */
    :root {
      --primary-pink: #ff7eb9;
      --primary-blue: #74b9ff;
      --primary-yellow: #ffeaa7;
      --primary-purple: #a55eea;
      --primary-green: #55efc4;
      --text-dark: #2c3e50;
      --text-muted: #7f8c8d;
      --bg-light: #fafbfc;
      --card-shadow: 0 10px 25px rgba(255, 126, 185, 0.12);
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }

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

    body {
      font-family: var(--font-family);
      background-color: var(--bg-light);
      color: var(--text-dark);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.3s ease;
    }

    ul {
      list-style: none;
    }

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

    /* 顶部导航 */
    header {
      background-color: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(10px);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 2px solid var(--primary-yellow);
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    }

    .nav-box {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 0;
    }

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

    .brand img.ai-page-logo {
      height: 45px;
      width: auto;
    }

    .brand span {
      font-weight: 800;
      font-size: 1.5rem;
      background: linear-gradient(135deg, var(--primary-pink), var(--primary-purple));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

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

    .nav-menu a {
      font-weight: 600;
      font-size: 0.95rem;
      padding: 6px 12px;
      border-radius: 20px;
    }

    .nav-menu a:hover {
      background-color: var(--primary-yellow);
      color: var(--text-dark);
    }

    .nav-btn {
      background: linear-gradient(135deg, var(--primary-pink), var(--primary-blue));
      color: #fff;
      padding: 8px 20px;
      border-radius: 25px;
      font-weight: bold;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 10px rgba(255, 126, 185, 0.3);
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .nav-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 15px rgba(255, 126, 185, 0.4);
      color: #fff;
    }

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

    .menu-toggle span {
      width: 25px;
      height: 3px;
      background-color: var(--text-dark);
      border-radius: 3px;
      transition: 0.3s;
    }

    /* Hero首屏 - 无图 */
    .hero-sec {
      background: linear-gradient(180deg, #fff9fb 0%, #edf7ff 100%);
      padding: 100px 0 80px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .hero-sec::before {
      content: '';
      position: absolute;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      background: radial-gradient(circle, var(--primary-yellow) 0%, transparent 70%);
      top: -100px;
      left: -100px;
      z-index: 1;
      opacity: 0.6;
    }

    .hero-sec::after {
      content: '';
      position: absolute;
      width: 400px;
      height: 400px;
      border-radius: 50%;
      background: radial-gradient(circle, var(--primary-blue) 0%, transparent 70%);
      bottom: -150px;
      right: -100px;
      z-index: 1;
      opacity: 0.4;
    }

    .hero-content {
      position: relative;
      z-index: 10;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-block;
      background: linear-gradient(135deg, var(--primary-yellow), var(--primary-green));
      color: var(--text-dark);
      font-weight: 700;
      font-size: 0.9rem;
      padding: 6px 18px;
      border-radius: 30px;
      margin-bottom: 25px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    }

    /* 改写后限制20字内的H1 */
    .hero-content h1 {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 25px;
      color: var(--text-dark);
    }

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

    .hero-p {
      font-size: 1.2rem;
      color: var(--text-muted);
      margin-bottom: 40px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-action {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .btn-main {
      background: linear-gradient(135deg, var(--primary-pink), var(--primary-purple));
      color: #fff;
      padding: 15px 35px;
      border-radius: 35px;
      font-size: 1.1rem;
      font-weight: bold;
      box-shadow: 0 8px 20px rgba(255, 126, 185, 0.4);
      transition: all 0.3s;
    }

    .btn-main:hover {
      transform: translateY(-3px) scale(1.03);
      box-shadow: 0 12px 25px rgba(255, 126, 185, 0.5);
    }

    .btn-secondary {
      background: #fff;
      color: var(--text-dark);
      border: 2px solid var(--primary-blue);
      padding: 15px 35px;
      border-radius: 35px;
      font-size: 1.1rem;
      font-weight: bold;
      transition: all 0.3s;
    }

    .btn-secondary:hover {
      background-color: var(--primary-blue);
      color: #fff;
      transform: translateY(-3px);
    }

    /* 数据指标卡片 */
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .stat-card {
      background: rgba(255, 255, 255, 0.95);
      border: 2px solid var(--primary-yellow);
      border-radius: 20px;
      padding: 20px;
      box-shadow: var(--card-shadow);
      transition: transform 0.3s;
    }

    .stat-card:hover {
      transform: translateY(-5px);
    }

    .stat-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary-pink);
      margin-bottom: 5px;
    }

    .stat-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: bold;
    }

    /* 通用区块样式 */
    section {
      padding: 90px 0;
    }

    .section-title {
      text-align: center;
      margin-bottom: 55px;
      position: relative;
    }

    .section-title h2 {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-dark);
      display: inline-block;
      position: relative;
      z-index: 2;
    }

    .section-title h2::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 12px;
      background-color: var(--primary-yellow);
      z-index: -1;
      border-radius: 6px;
    }

    .section-title p {
      margin-top: 15px;
      color: var(--text-muted);
      font-size: 1.05rem;
    }

    /* 关于我们与软件介绍 */
    .about-sec {
      background-color: #fff;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.8rem;
      font-weight: 700;
      margin-bottom: 20px;
      color: var(--primary-purple);
    }

    .about-text p {
      font-size: 1.05rem;
      color: var(--text-dark);
      margin-bottom: 20px;
      text-align: justify;
    }

    .about-features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 15px;
      margin-top: 30px;
    }

    .feat-item {
      background-color: #fffcf4;
      border-left: 4px solid var(--primary-pink);
      padding: 12px 15px;
      border-radius: 0 10px 10px 0;
      font-weight: 600;
      font-size: 0.95rem;
    }

    .about-info-box {
      background: linear-gradient(135deg, #fff0f5 0%, #e6f7ff 100%);
      border: 3px solid var(--primary-yellow);
      border-radius: 24px;
      padding: 40px;
      box-shadow: var(--card-shadow);
    }

    .info-list-item {
      margin-bottom: 20px;
    }

    .info-list-item:last-child {
      margin-bottom: 0;
    }

    .info-label {
      font-weight: bold;
      color: var(--text-muted);
      font-size: 0.85rem;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .info-val {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-top: 5px;
    }

    /* 全平台AIGC服务体系 */
    .services-sec {
      background-color: #f7f9fc;
    }

    .models-wall {
      margin-bottom: 50px;
      text-align: center;
    }

    .models-wall h3 {
      font-size: 1.4rem;
      margin-bottom: 25px;
      color: var(--text-dark);
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
    }

    .model-tag {
      background: #fff;
      padding: 8px 18px;
      border-radius: 20px;
      font-size: 0.9rem;
      font-weight: 600;
      border: 2px solid #eee;
      transition: all 0.3s;
      box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    }

    .model-tag:hover {
      border-color: var(--primary-pink);
      background-color: #fff0f5;
      transform: translateY(-2px);
    }

    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .service-card {
      background: #fff;
      border-radius: 20px;
      padding: 35px;
      border: 2px solid #f1f2f6;
      box-shadow: var(--card-shadow);
      transition: all 0.3s;
      position: relative;
    }

    .service-card:hover {
      transform: translateY(-8px);
      border-color: var(--primary-blue);
    }

    .service-icon {
      width: 60px;
      height: 60px;
      background: var(--primary-yellow);
      border-radius: 15px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.8rem;
      margin-bottom: 25px;
    }

    .service-card:nth-child(2n) .service-icon {
      background: #ffe3e3;
    }

    .service-card:nth-child(3n) .service-icon {
      background: #e3faf2;
    }

    .service-card h4 {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 15px;
    }

    .service-card p {
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    /* 全自动AIGC制作流程 + 标准化服务全流程 */
    .process-sec {
      background-color: #fff;
    }

    .timeline {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 15px;
      position: relative;
      margin-top: 40px;
    }

    .timeline::before {
      content: '';
      position: absolute;
      top: 35px;
      left: 10%;
      width: 80%;
      height: 4px;
      background: linear-gradient(to right, var(--primary-pink), var(--primary-blue), var(--primary-yellow));
      z-index: 1;
    }

    .timeline-step {
      text-align: center;
      position: relative;
      z-index: 2;
    }

    .step-num {
      width: 70px;
      height: 70px;
      background: #fff;
      border: 4px solid var(--primary-pink);
      color: var(--text-dark);
      font-weight: 800;
      font-size: 1.5rem;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 20px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    }

    .timeline-step:nth-child(even) .step-num {
      border-color: var(--primary-blue);
    }

    .timeline-step h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .timeline-step p {
      font-size: 0.85rem;
      color: var(--text-muted);
      padding: 0 10px;
    }

    /* 全行业解决方案 + 全国服务网络 */
    .solutions-sec {
      background-color: #f7f9fc;
    }

    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .solution-card {
      background: #fff;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: var(--card-shadow);
      border: 2px solid transparent;
      transition: all 0.3s;
    }

    .solution-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary-purple);
    }

    .sol-header {
      padding: 25px;
      background: linear-gradient(135deg, #fff0f5, #eef7fe);
      border-bottom: 2px solid var(--primary-yellow);
    }

    .sol-header h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-dark);
    }

    .sol-body {
      padding: 30px;
    }

    .sol-body ul {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .sol-body li {
      position: relative;
      padding-left: 20px;
      font-size: 0.95rem;
    }

    .sol-body li::before {
      content: '✔';
      position: absolute;
      left: 0;
      color: var(--primary-purple);
      font-weight: bold;
    }

    .network-map {
      margin-top: 60px;
      background: #fff;
      border: 3px solid var(--primary-yellow);
      border-radius: 24px;
      padding: 40px;
      text-align: center;
      box-shadow: var(--card-shadow);
    }

    .network-map h3 {
      font-size: 1.5rem;
      margin-bottom: 15px;
    }

    .network-tags {
      display: flex;
      justify-content: center;
      gap: 15px;
      flex-wrap: wrap;
      margin-top: 25px;
    }

    .net-tag {
      background-color: #f1f2f6;
      color: var(--text-dark);
      padding: 6px 16px;
      border-radius: 15px;
      font-weight: 600;
      font-size: 0.9rem;
    }

    /* 技术标准 + Token比价参考 */
    .tech-sec {
      background-color: #fff;
    }

    .tech-grid {
      display: grid;
      grid-template-columns: 1fr 1.3fr;
      gap: 50px;
      align-items: flex-start;
    }

    .tech-specs {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .spec-box {
      border: 2px solid #f1f2f6;
      border-radius: 16px;
      padding: 20px;
      background-color: #fffcfd;
    }

    .spec-box h4 {
      font-size: 1.1rem;
      color: var(--primary-pink);
      margin-bottom: 8px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #fff;
      border: 2px solid var(--primary-yellow);
      border-radius: 20px;
      box-shadow: var(--card-shadow);
    }

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

    th, td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f2f6;
      font-size: 0.95rem;
    }

    th {
      background-color: #fff9e6;
      font-weight: bold;
      color: var(--text-dark);
    }

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

    /* 对比评测 */
    .compare-sec {
      background-color: #f7f9fc;
    }

    .compare-summary {
      background: linear-gradient(135deg, var(--primary-pink), var(--primary-purple));
      color: #fff;
      border-radius: 24px;
      padding: 40px;
      display: flex;
      justify-content: space-around;
      align-items: center;
      text-align: center;
      margin-bottom: 50px;
      box-shadow: 0 10px 30px rgba(165, 94, 234, 0.3);
    }

    .score-item h3 {
      font-size: 1.4rem;
      opacity: 0.9;
      margin-bottom: 10px;
    }

    .score-num {
      font-size: 3.5rem;
      font-weight: 900;
      line-height: 1;
    }

    .score-stars {
      font-size: 2.2rem;
      color: var(--primary-yellow);
    }

    /* 培训业务（职业技术培训 & 人工智能培训） */
    .training-sec {
      background-color: #fff;
    }

    .training-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
    }

    .train-card {
      background: #fff9fb;
      border: 2px solid var(--primary-pink);
      border-radius: 20px;
      padding: 25px 20px;
      text-align: center;
      transition: all 0.3s;
    }

    .train-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--card-shadow);
      background-color: #fff;
    }

    .train-icon {
      font-size: 2.2rem;
      margin-bottom: 15px;
    }

    .train-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 10px;
    }

    .train-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 客户案例中心 */
    .cases-sec {
      background-color: #f7f9fc;
    }

    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .case-card {
      background: #fff;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: var(--card-shadow);
      border: 2px solid #eee;
    }

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

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

    .case-info {
      padding: 25px;
    }

    .case-info h3 {
      font-size: 1.15rem;
      margin-bottom: 10px;
    }

    .case-info p {
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    /* 客户评论卡片 */
    .reviews-sec {
      background-color: #fff;
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .review-card {
      background: #fff;
      border: 2px solid var(--primary-yellow);
      border-radius: 20px;
      padding: 30px;
      box-shadow: var(--card-shadow);
      position: relative;
    }

    .review-text {
      font-size: 0.95rem;
      font-style: italic;
      color: var(--text-dark);
      margin-bottom: 20px;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 15px;
      border-top: 1px solid #f1f2f6;
      padding-top: 15px;
    }

    .user-avatar {
      width: 45px;
      height: 45px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-pink), var(--primary-blue));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: bold;
      font-size: 1.2rem;
    }

    .user-meta h4 {
      font-size: 0.95rem;
      font-weight: 700;
    }

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

    /* 帮助中心 (FAQ & 排查 & 术语百科) */
    .faq-sec {
      background-color: #f7f9fc;
    }

    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #fff;
      border: 2px solid #eee;
      border-radius: 12px;
      margin-bottom: 15px;
      overflow: hidden;
      transition: all 0.3s;
    }

    .faq-header {
      padding: 20px;
      font-weight: 700;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background-color: #fff;
    }

    .faq-header:hover {
      background-color: #fffbfd;
    }

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary-pink);
      transition: transform 0.3s;
    }

    .faq-body {
      padding: 0 20px;
      max-height: 0;
      overflow: hidden;
      transition: all 0.3s ease-out;
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    .faq-item.active {
      border-color: var(--primary-pink);
    }

    .faq-item.active .faq-body {
      padding: 0 20px 20px;
      max-height: 200px;
    }

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

    /* 资讯库组件 */
    .articles-sec {
      background-color: #fff;
    }

    .articles-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .articles-list {
      display: flex;
      flex-direction: column;
      gap: 15px;
      margin-bottom: 30px;
    }

    .article-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background-color: #f9fbfd;
      border-left: 5px solid var(--primary-blue);
      padding: 18px 25px;
      border-radius: 0 12px 12px 0;
      transition: transform 0.2s;
    }

    .article-item:hover {
      transform: translateX(5px);
      background-color: #f1f8ff;
    }

    .article-title {
      font-weight: 700;
      font-size: 1rem;
      color: var(--text-dark);
    }

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

    /* 需求匹配与联系我们 */
    .contact-sec {
      background-color: #f7f9fc;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 50px;
      align-items: flex-start;
    }

    .form-wrapper {
      background: #fff;
      border-radius: 24px;
      padding: 40px;
      box-shadow: var(--card-shadow);
      border: 2px solid var(--primary-yellow);
    }

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

    .form-group label {
      display: block;
      font-weight: 700;
      margin-bottom: 8px;
      font-size: 0.95rem;
    }

    .form-control {
      width: 100%;
      padding: 12px 15px;
      border: 2px solid #eee;
      border-radius: 10px;
      outline: none;
      font-family: inherit;
      transition: all 0.3s;
    }

    .form-control:focus {
      border-color: var(--primary-pink);
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 15px;
    }

    .contact-info-panel {
      background: linear-gradient(135deg, #e6f7ff 0%, #fff0f5 100%);
      border-radius: 24px;
      padding: 40px;
      border: 2px solid var(--primary-blue);
    }

    .contact-info-panel h3 {
      font-size: 1.5rem;
      margin-bottom: 25px;
    }

    .contact-details {
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-bottom: 40px;
    }

    .detail-item {
      display: flex;
      gap: 15px;
      align-items: flex-start;
    }

    .detail-icon {
      font-size: 1.5rem;
    }

    .detail-content h4 {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .detail-content p {
      font-size: 1.1rem;
      font-weight: bold;
    }

    .qrcode-box {
      text-align: center;
      background: #fff;
      padding: 25px;
      border-radius: 20px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    }

    .qrcode-box img {
      max-width: 150px;
      height: auto;
      border: 1px solid #eee;
      border-radius: 10px;
    }

    .qrcode-box p {
      margin-top: 10px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-dark);
    }

    /* 页脚 */
    footer {
      background-color: #2c3e50;
      color: #fff;
      padding: 60px 0 30px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 40px;
      border-bottom: 1px solid rgba(255,255,255,0.1);
      padding-bottom: 40px;
      margin-bottom: 30px;
    }

    .footer-brand h3 {
      font-size: 1.6rem;
      margin-bottom: 15px;
      color: var(--primary-pink);
    }

    .footer-brand p {
      color: #bdc3c7;
      font-size: 0.9rem;
    }

    .footer-links h4 {
      font-size: 1.1rem;
      margin-bottom: 20px;
      color: var(--primary-yellow);
    }

    .footer-links ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: #bdc3c7;
      font-size: 0.9rem;
    }

    .footer-links a:hover {
      color: #fff;
    }

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 10px;
    }

    .friend-links a {
      display: inline-block;
      background: rgba(255,255,255,0.08);
      padding: 6px 12px;
      border-radius: 15px;
      font-size: 0.8rem;
      color: #bdc3c7;
    }

    .friend-links a:hover {
      background: var(--primary-pink);
      color: #fff;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 15px;
      font-size: 0.85rem;
      color: #7f8c8d;
    }

    /* 悬浮客服 */
    .float-widgets {
      position: fixed;
      right: 25px;
      bottom: 25px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }

    .widget-btn {
      width: 55px;
      height: 55px;
      background-color: #fff;
      border-radius: 50%;
      box-shadow: 0 5px 20px rgba(0,0,0,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      position: relative;
      transition: all 0.3s;
      border: 2px solid var(--primary-yellow);
    }

    .widget-btn:hover {
      transform: scale(1.08);
      background-color: var(--primary-pink);
      color: #fff;
    }

    .widget-kefu-pop {
      position: absolute;
      bottom: 65px;
      right: 0;
      background: #fff;
      border-radius: 12px;
      padding: 15px;
      box-shadow: 0 5px 20px rgba(0,0,0,0.15);
      display: none;
      width: 160px;
      text-align: center;
      border: 2px solid var(--primary-pink);
    }

    .widget-kefu-pop img {
      width: 120px;
      height: 120px;
    }

    .widget-kefu-pop p {
      font-size: 0.8rem;
      margin-top: 5px;
      color: var(--text-dark);
      font-weight: bold;
    }

    .widget-btn:hover .widget-kefu-pop {
      display: block;
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-stats {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid, .tech-grid, .contact-grid {
        grid-template-columns: 1fr;
      }
      .services-grid, .solutions-grid, .cases-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline {
        grid-template-columns: repeat(3, 1fr);
      }
      .timeline::before {
        display: none;
      }
      .training-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #fff;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 2px solid var(--primary-pink);
      }
      .nav-menu.active {
        display: flex;
      }
      .menu-toggle {
        display: flex;
      }
      .hero-content h1 {
        font-size: 2.1rem;
      }
      .services-grid, .solutions-grid, .cases-grid, .reviews-grid, .training-grid {
        grid-template-columns: 1fr;
      }
      .timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }