/* 简单重置样式，实际项目建议用成熟的CSS重置方案 */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: "Microsoft YaHei", sans-serif;
    }

    a{
      color:#000;
      text-decoration: none;
    }
    a:hover{
      color:#87ceeb;
    }
    .text-primary{
      color:#87ceeb;
    }

    header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      /* 设置背景为透明 */
      background-color: transparent;
      /* 将header置于顶层 */
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      /* 添加过渡效果 */
      transition: background-color 0.6s ease;
    }

    /* 修改header-mask样式为渐变透明色 */
    .header-mask {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 160px;
      /* 使用线性渐变实现渐变透明效果 */
      background: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0));
      z-index: 999;
      /* 添加过渡效果 */
      transition: opacity 0.3s ease;
    }

    .logo {
      display: flex;
      align-items: center;
    }

    nav ul {
      display: flex;
      list-style: none;
    }

    nav ul li {
      margin: 0 20px;
      position: relative;

    }

    nav ul li a {
      font-size: 20px;
      color: #fff;
      text-decoration: none;
      display: block;
      /* 使 a 标签成为块级元素 */
      padding-bottom: 10px;
      /* 为鼠标移动到子菜单提供空间 */
    }

    nav ul li a:hover {
      color: #87ceeb;
    }

    /* 修改下拉菜单样式 */
    nav ul li ul {
      display: block;
      position: absolute;
      top: 51px;
      /* 下拉菜单距离页面顶部为100像素 */
      left: 0;
      background: rgba(0, 0, 0, 0.8);
      min-width: 150px;
      z-index: 1000;
      flex-direction: column;
      opacity: 0;
      visibility: hidden;
      transform: translateY(-10px);
      /* 添加过渡效果，让 opacity 和 transform 变化更平滑 */
      transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }

    nav ul li ul li {
      margin: 0;
    }

    nav ul li ul li a {
      display: block;
      padding: 10px;
      font-size: 16px;
      color: #fff;
      /* 链接颜色为#87ceeb */
      text-decoration: none;
      transition: background-color 0.3s ease;
    }

    nav ul li ul li a:hover {
      background: rgba(0, 0, 0, 0.6);
    }

    nav ul li:hover ul {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .toplink {
      margin-bottom: 10px;

    }

    .toplink a {
      color: #fff;
      text-decoration: none;
      font-size: 16px;
    }

    .banner {
      position: relative;
      width: 100%;
      height: 50vh;
      /* 设置高度为屏幕高度 */
      overflow: hidden;
      margin-bottom: 40px;
    }

    .banner .slides {
      display: flex;
      width: 100%;
      height: 100%;
      transition: transform 0.5s ease-in-out;
    }

    .banner .slide {
      min-width: 100%;
      height: 100%;
    }

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

    .banner .prev,
    .banner .next {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      font-size: 30px;
      cursor: pointer;
      z-index: 100;
      padding: 10px;
      /*background-color: rgba(0, 0, 0, 0.5);*/
      color: #fff;
    }

    .banner .prev {
      left: 10px;
    }

    .banner .next {
      right: 10px;
    }

    /* 新增圆点样式 */
    .dots {
      position: absolute;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      z-index: 100;
    }

    .dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background-color: rgba(0, 0, 0, 0.2);
      margin: 0 5px;
      cursor: pointer;
      border: 1px solid #fff
    }

    .dot.active {
      background-color: rgba(135, 206, 235, 0.6);
    }

    .container {
      max-width: 1400px;
      margin: 0 auto;
    }

    .intro {
      width:100%;
      background-color: #fff;
      display: flex;
      justify-content: space-between;
    }

    .intro-left {
      width: 20%;      
      border: 1px solid #ddd;
      padding:10px;
    }
    .left_root{
      width:100%;
      height:80px;
      font-size:28px;
      font-weight: bold;
      line-height: 80px;
      text-align: center;
      background: #0095cc;
      color:#fff;
    }

    .intro-left ul {
      list-style: none;
    }

    .intro-left ul li {
      
      height:50px;
      line-height: 50px;
      background: #f0f0f0;
      text-align: center;
      margin-top: 10px;

    }

    .intro-left ul li:hover {
      
      height:50px;
      line-height: 50px;
      background: #87ceeb;
      text-align: center;
      margin-top: 10px;

    }

    .intro-left ul li:hover a{
      
      color: #fff;
      text-decoration: none;
      font-size: 18px;

    }

    .intro-left ul li a {
      color: #000;
      text-decoration: none;
      font-size: 18px;
      display: block;
      height:100%;
    }

    .intro-left ul li.active {
      background: #87ceeb;
    }
    .intro-left ul li.active a{
      color: #fff;
    }

    .intro-right {
      width: 78%;
      padding:40px;
      border: 1px solid #ddd;
      min-height: 600px;
    }
    .current{
      width:100%;
      display: flex;
      justify-content: space-between;
      border-bottom: 1px solid #ddd;
      margin-bottom: 20px;

    }
    .lanmu{
      width:30%;
      font-size:24px;
      font-weight: bold;
      color: #0095cc;
      padding-bottom: 10px;
    }

    .current-position {
      width:70%;
      padding-top:10px;
      
      text-align: right;
    }
    .title{
      padding:20px;
      font-size:24px;
      line-height: 36px;
      text-align: center;
    }
    .author{
      padding-bottom:20px;
      font-size:14px;      
      text-align: center;
      border-bottom: 1px solid #ddd;
      color:#888;
    }
    .content{
      margin-top: 40px;
    }

     

    .content p {
      font-size: 18px;
      line-height: 32px;
      margin-bottom: 32px;
      text-indent: 2em;

    }

    

    .news-list {
      width: 100%;
    }

    .news-item {
      background: #f8f8f8;
      margin-bottom: 15px;      
      transition: background-color 0.3s ease;
      /* 添加过渡效果 */
    }

    .news-item:hover {
      background: #87ceeb;
    }

    .news-item a{
      color:#000;
      display: flex;
      text-decoration: none;
      padding: 10px;
      padding-left:0px;
    }

    .news-item .date {
      width: 100px;
      text-align: center;
      margin-right: 15px;
      border-right: 1px solid #ddd;
    }

    .news-item:hover .date {
      width: 100px;
      text-align: center;
      margin-right: 15px;
      border-right: 1px solid #fff;
    }

    .news-item .date span,
    .news-item .date em {
      color: #87ceeb;
    }

    .news-item:hover .date span,
    .news-item:hover .date em {
      color: #ffffff;
    }

    .news-item .date span {
      display: block;
      font-size: 32px;
      font-weight: bold;
    }

    .news-item .date em {
      font-size: 12px;
      color: #000;
      font-style: normal;
    }

    .news-item .text {
      flex: 1;
      padding-right:10px;
    }

    .news-item .text {
      display: flex;
      align-items: center;
      font-size: 18px;
      line-height: 32px;
    }
    .news-item:hover .text{
      color:#fff;
    }
    /* 底部样式 */
    .footer {
      padding-top: 40px;
      color: #fff;
      background: #035fa5;
      margin-top: 40px;
    }


    .footer-link {
      font-size: 32px;

    }

    .quick-links {
      display: flex;
      justify-content: center;
      gap: 20px;
      margin-bottom: 20px;
    }

    .quick-links a {
      color: #fff;
      text-decoration: none;
      padding: 10px 20px;
      border: 1px solid #fff;
      border-radius: 20px;
    }

    .footer-info {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 20px;
      padding-top: 40px;
    }

    .logo-group {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .contact-info p {
      margin: 5px 0;
      line-height: 32px
    }

    .share-icons {
      display: flex;
      gap: 10px;
    }

    .share-icons img {
      height: 20px;
      /* 分享图标高度，可调整 */
    }

    .qr-code {
      text-align: center;
      margin-bottom: 20px;
    }

    .qr-code img {
      width: 80px;
      /* 二维码宽度，可调整 */
    }

    .copyright {
      text-align: center;


      background-color: #035fa5;
      padding: 10px 0px;
      color: #fff;
      border-top: 1px solid #bbedff;
    }

    /* 返回顶部按钮样式 */
    #back-to-top {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: #87ceeb;
      color: #fff;
      padding: 10px 15px;
      border-radius: 5px;
      cursor: pointer;
      display: none;
    }