/* 基础样式 */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      background-color: #f8f9fa;
      color: #333;
      min-width: 320px;
      font-family: "Microsoft YaHei", sans-serif;
    }
    .container {
      width: 100%;
      max-width: 1392px;
      margin: 0 auto;
      padding: 0 15px;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.3s;
    }
    img {
      max-width: 100%;
      vertical-align: middle;
    }
    .clearfix::after {
      content: "";
      display: table;
      clear: both;
    }
    .d-none {
      display: none !important;
    }
    @media (min-width: 768px) {
      .d-md-block {
        display: block !important;
      }
    }

    /* 顶部导航 - 优化样式 */
    .header {
      background-color: #fff;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
      position: sticky;
      top: 0;
      z-index: 999;
    }
    .header-top {
      height: 36px;
      line-height: 36px;
      background-color: #0a69b7;
      color: white;
      font-size: 12px;
      position: relative; /* 添加相对定位 */
    }
    .header-top-content {
      display: flex;
      justify-content: flex-end;
    }
    .header-top a {
      color: white;
      margin-left: 20px;
      padding: 0 5px;
      display: inline-block; /* 确保点击区域完整 */
    }
    .header-top a:hover {
      color: #ffd700;
    }

    /* 登录注册下拉菜单样式 */
    .login-dropdown {
      position: relative;
      cursor: pointer;
    }
    .dropdown-menu {
      position: absolute;
      top: 36px;
      right: 0;
      background-color: white;
      min-width: 150px;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
      border-radius: 4px;
      padding: 8px 0;
      display: none;
      z-index: 9999;
      color: #333;
    }
    .dropdown-menu a {
      display: block;
      padding: 8px 15px;
      color: #333;
      margin: 0;
      line-height: 1.5;
    }
    .dropdown-menu a:hover {
      background-color: #f5f8fd;
      color: #0a69b7;
    }
    .login-dropdown:hover .dropdown-menu {
      display: block;
    }

    .header-main {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 0;
    }
    .logo {
      display: flex;
      align-items: center;
    }
    .logo img {
      height: 50px;
      margin-right: 10px;
    }
    .logo-text {
      font-size: 14px;
      color: #666;
    }
    .logo-text strong {
      font-size: 24px;
      color: #0a69b7;
      display: block;
      line-height: 1.2;
      font-weight: 600;
    }
    .nav {
      display: flex;
      list-style: none;
    }
    .nav li {
      position: relative;
      margin-left: 35px;
    }
    .nav a {
      font-size: 16px;
      color: #333;
      padding: 8px 0;
      display: inline-block;
      font-weight: 500;
    }
    .nav a:hover {
      color: #0a69b7;
    }
    .nav a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 3px;
      background-color: #0a69b7;
      border-radius: 3px;
      transition: width 0.3s;
    }
    .nav a:hover::after {
      width: 100%;
    }

    /* 顶部Banner+推荐直播组合区域 - 重构布局 */
    .top-banner-wrapper {
      display: flex;
      gap: 15px;
      margin: 15px 0;
      width: 100%;
      min-height: 0; /* 修复flex布局高度问题 */
    }
    /* 左侧幻灯片区域 - 修复错位 */
    .banner-left {
      flex: 8;
      min-width: 0; /* 解决flex子元素宽度溢出 */
      height: 450px; /* 固定高度，匹配幻灯片 */
    }
    /* 右侧推荐直播区域 */
    .banner-right {
      flex: 4;
      min-width: 0; /* 解决flex子元素宽度溢出 */
      height: 450px; /* 与左侧等高 */
    }

    /* 主Banner区域 - Swiper幻灯片 */
    .main-banner {
      position: relative;
      width: 100%;
      height: 100%; /* 继承父容器高度 */
    }
    .banner-swiper {
      width: 100%;
      height: 100%; /* 关键：设置高度100% */
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }
    .banner-swiper .swiper-slide {
      position: relative;
      width: 100%;
      height: 100%; /* 幻灯片高度100% */
    }
    .banner-swiper img {
      width: 100%;
      height: 100%;
      object-fit: cover; /* 保持图片比例 */
      display: block;
    }
    .banner-play-btn {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      width: 60px;
      height: 60px;
      background-color: rgba(0, 0, 0, 0.5);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      z-index: 10;
      transition: all 0.3s;
    }
    .banner-play-btn:hover {
      background-color: rgba(10, 105, 183, 0.8);
      transform: translate(-50%, -50%) scale(1.1);
    }
    .banner-play-icon {
      width: 0;
      height: 0;
      border-style: solid;
      border-width: 15px 0 15px 25px;
      border-color: transparent transparent transparent white;
      margin-left: 5px;
    }
    .banner-info {
      position: absolute;
      left: 50px;
      top: 50%;
      transform: translateY(-50%);
      color: white;
      z-index: 10;
      max-width: 350px;
      text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }
    .banner-info .tag {
      background-color: rgba(65, 179, 249, 0.9);
      display: inline-block;
      padding: 5px 12px;
      border-radius: 4px;
      font-size: 14px;
      margin-bottom: 15px;
    }
    .banner-info .title {
      font-size: 28px;
      font-weight: bold;
      margin-bottom: 10px;
      line-height: 1.3;
    }
    .banner-info .speaker {
      font-size: 16px;
      margin-bottom: 20px;
    }
    .banner-info .desc {
      font-size: 14px;
      opacity: 0.9;
      line-height: 1.5;
    }

    /* 右侧推荐视频 - 核心修复：解决滚动条问题 */
    .recommend-videos {
      background-color: #70b926;
      padding: 15px; /* 减少内边距，降低总高度 */
      color: white;
      height: 100%; /* 强制继承父容器450px高度 */
      box-sizing: border-box;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      overflow: hidden !important; /* 强制隐藏所有溢出 */
      position: relative; /* 配合内部滚动容器定位 */
    }
    /* 新增：内部滚动容器（如需滚动则用这个，否则内容会被裁剪） */
    .recommend-inner {
      height: 100%;
      overflow-y: auto; /* 如需滚动则保留，否则改为 hidden */
      /* 隐藏滚动条但保留滚动功能（可选） */
      scrollbar-width: none; /* Firefox */
    }
    .recommend-inner::-webkit-scrollbar {
      display: none; /* Chrome/Safari/Edge */
    }
    .recommend-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px; /* 减少间距 */
      font-size: 18px;
      font-weight: 600;
    }
    .recommend-tabs {
      display: flex;
      gap: 8px; /* 减少间距 */
    }
    .recommend-tab {
      padding: 4px 10px; /* 减少内边距 */
      background-color: rgba(255, 255, 255, 0.2);
      border-radius: 20px;
      font-size: 14px;
      cursor: pointer;
      transition: all 0.3s;
    }
    .recommend-tab.active {
      background-color: white;
      color: #70b926;
      font-weight: 600;
    }
    .video-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 8px; /* 减少网格间距 */
    }
    .video-item {
      background-color: white;
      border-radius: 6px;
      overflow: hidden;
      color: #333;
      font-size: 13px;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
      transition: transform 0.3s;
      position: relative;
    }
    .video-item:hover {
      transform: translateY(-3px);
    }
    .video-item img {
      width: 100%;
      height: 80px; /* 降低图片高度 */
      object-fit: cover;
      display: block;
    }
    /* 视频播放按钮 - 小视频项 */
    .video-item-play-btn {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      width: 30px;
      height: 30px;
      background-color: rgba(0, 0, 0, 0.6);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      z-index: 5;
      opacity: 0;
      transition: all 0.3s;
    }
    .video-item:hover .video-item-play-btn {
      opacity: 1;
      background-color: rgba(10, 105, 183, 0.8);
    }
    .video-item-play-icon {
      width: 0;
      height: 0;
      border-style: solid;
      border-width: 8px 0 8px 13px;
      border-color: transparent transparent transparent white;
      margin-left: 2px;
    }
    /* 视频文字调整 - 向上移动 */
    .video-item p {
      padding: 9px 6px; /* 减少内边距 */
      height: 42px; /* 降低文字高度 */
      line-height: 22px;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
      margin: 0;
    }

    /* 在线课程 - 增加视频按钮 */
    .equipment-section {
      margin: 40px 0;
    }
    .section-title {
      font-size: 20px;
      color: #222;
      padding-bottom: 12px;
      border-bottom: 3px solid #0a69b7;
      margin-bottom: 25px;
      display: flex;
      align-items: center;
      font-weight: 600;
    }
    .section-title i {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-right: 0px;
      font-style: normal;
      font-size: 16px;
      font-weight: normal;
    }
    .equipment-grid {
      display: flex;
      gap: 20px;
      overflow-x: auto;
      padding-bottom: 15px;
      scrollbar-width: thin;
    }
    .equipment-grid::-webkit-scrollbar {
      height: 6px;
    }
    .equipment-grid::-webkit-scrollbar-thumb {
      background-color: #0a69b7;
      border-radius: 3px;
    }
    .equipment-item {
      flex: 1;
      min-width: 220px;
      text-align: center;
      background-color: white;
      border-radius: 8px;
      padding: 15px;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
      transition: transform 0.3s;
      position: relative;
      cursor: pointer;
    }
    .equipment-item:hover {
      transform: translateY(-5px);
    }
    /* 设备项视频播放按钮 - 居中 */
    .equipment-play-btn {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      width: 40px;
      height: 40px;
      background-color: rgba(0, 0, 0, 0.6);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      z-index: 5;
      opacity: 0;
      transition: all 0.3s;
    }
    .equipment-item:hover .equipment-play-btn {
      opacity: 1;
    }
    .equipment-play-icon {
      width: 0;
      height: 0;
      border-style: solid;
      border-width: 10px 0 10px 18px;
      border-color: transparent transparent transparent white;
      margin-left: 3px;
    }
    .equipment-item img {
      width: 100%;
      height: 150px;
      object-fit: cover;
      border-radius: 6px;
      margin-bottom: 12px;
    }
    .equipment-item p {
      font-size: 15px;
      color: #333;
      line-height: 1.4;
      height: 40px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      font-weight: 500;
    }
    .equipment-date {
      font-size: 12px;
      color: #999;
      margin-top: 8px;
    }

    /* 快速上手攻略区域 - 增加视频按钮 */
    .quick-guide {
      margin: 40px 0;
    }
    .guide-header {
      background-color: #0a69b7;
      color: white;
      padding: 15px 25px;
      font-size: 20px;
      border-radius: 8px 8px 0 0;
      font-weight: 600;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
    .guide-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      padding: 25px;
      background-color: #f5f8fd;
      border-radius: 0 0 8px 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    }
    .guide-item {
      background-color: white;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
      transition: transform 0.3s;
      position: relative;
      cursor: pointer;
    }
    .guide-item:hover {
      transform: translateY(-5px);
    }
    /* 攻略项视频播放按钮 - 居中 */
    .guide-play-btn {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      width: 50px;
      height: 50px;
      background-color: rgba(0, 0, 0, 0.6);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      z-index: 5;
      opacity: 0;
      transition: all 0.3s;
    }
    .guide-item:hover .guide-play-btn {
      opacity: 1;
    }
    .guide-play-icon {
      width: 0;
      height: 0;
      border-style: solid;
      border-width: 12px 0 12px 20px;
      border-color: transparent transparent transparent white;
      margin-left: 4px;
    }
    .guide-item img {
      width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
    }
    .guide-item p {
      padding: 18px;
      font-size: 16px;
      line-height: 1.6;
      color: #444;
    }
      .guide-item a:hover p {
      color: #0a69b7;
    ;
    }
     
    /* 自适应宽度容器 */
    .texttwo {
      /* 宽度自适应（占父容器100%） */
      width: 100%;
      /* 最大宽度可选（避免过宽） */
      max-width: 600px;
      /* 核心：多行溢出省略 */
      display: -webkit-box;
      -webkit-box-orient: vertical;
      /* 限制显示2行 */
      -webkit-line-clamp: 2;
      /* 溢出隐藏 */
      overflow: hidden;
      /* 省略号样式 */
      text-overflow: ellipsis;
      /* 可选：行高/字体大小调整 */
      line-height: 25px;
      height: 60px;
      font-size: 16px;
      /* 可选：边框/内边距，便于查看效果 */
      padding: 15px;
      margin-bottom: 20px;
      border-top: 1px solid #eee;
    }
    
    @media (max-width: 480px) {
      .texttwo {
            -webkit-line-clamp: 2; /* 移动端2行 */
            font-size: 12px;
          }
    }
    @media (min-width: 481px) {
          .texttwo {
            -webkit-line-clamp: 2; /* PC端仍2行，可按需调整 */
            font-size: 14px;
          }
    }
        

    /* 会议活动和线上访谈区域 - 重构会议活动样式 */
    .event-section {
      margin: 40px 0;
    }
    .event-tabs {
      display: flex;
      border-bottom: 2px solid #eee;
      margin-bottom: 25px;
    }
    .event-tab {
      padding: 12px 25px;
      font-size: 18px;
      cursor: pointer;
      border-bottom: 4px solid transparent;
      transition: all 0.3s;
      font-weight: 500;
    }
    .event-tab.active {
      border-bottom-color: #0a69b7;
      color: #0a69b7;
      font-weight: bold;
    }
    /* 会议活动 - 图片形式 6个一排 */
    .event-content-meeting {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 15px;
      margin-bottom: 20px;
    }
    .event-content-meeting-row2 {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 15px;
    }
    .event-meeting-item {
      background-color: white;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
      transition: transform 0.3s;
      position: relative;
      cursor: pointer;
    }
    .event-meeting-item:hover {
      transform: translateY(-5px);
    }
    /* 会议项视频播放按钮 - 居中 */
    .event-meeting-play-btn {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      width: 35px;
      height: 35px;
      background-color: rgba(0, 0, 0, 0.6);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      z-index: 5;
      opacity: 0;
      transition: all 0.3s;
    }
    .event-meeting-item:hover .event-meeting-play-btn {
      opacity: 1;
    }
    .event-meeting-play-icon {
      width: 0;
      height: 0;
      border-style: solid;
      border-width: 9px 0 9px 15px;
      border-color: transparent transparent transparent white;
      margin-left: 3px;
    }
    .event-meeting-item img {
      width: 100%;
      height: 120px;
      object-fit: cover;
      display: block;
    }
    .event-meeting-info {
      padding: 10px;
    }
    .event-meeting-title {
      font-size: 14px;
      line-height: 1.4;
      height: 40px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-bottom: 5px;
    }
    .event-meeting-meta {
      font-size: 12px;
      color: #999;
    }
    /* 线上访谈 - 保持原有样式 */
    .event-content-interview {
      display: flex;
      gap: 20px;
    }
    .event-left, .event-right {
      flex: 1;
    }
    .event-item {
      display: flex;
      background-color: white;
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
      margin-bottom: 18px;
      transition: transform 0.3s;
      position: relative;
    }
    .event-item:hover {
      transform: translateY(-3px);
    }
    /* 访谈项视频播放按钮 - 居中 */
    .event-item-play-btn {
      position: absolute;
      left: 60px;
      top: 50%;
      transform: translateY(-50%);
      width: 30px;
      height: 30px;
      background-color: rgba(0, 0, 0, 0.6);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      z-index: 5;
      opacity: 0;
      transition: all 0.3s;
    }
    .event-item:hover .event-item-play-btn {
      opacity: 1;
    }
    .event-item-play-icon {
      width: 0;
      height: 0;
      border-style: solid;
      border-width: 8px 0 8px 13px;
      border-color: transparent transparent transparent white;
      margin-left: 2px;
    }
    .event-item-img {
      width: 160px;
      height: 100px;
      flex-shrink: 0;
    }
    .event-item-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }
    .event-item-info {
      padding: 18px;
      flex: 1;
    }
    .event-item-title {
      font-size: 16px;
      margin-bottom: 12px;
      line-height: 1.4;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      font-weight: 500;
    }
    .event-item-meta {
      font-size: 12px;
      color: #999;
      display: flex;
      justify-content: space-between;
    }

    /* 底部区域 - 优化样式 */
    .footer {
      background-color: #222;
      color: #ccc;
      padding: 40px 0 20px;
      margin-top: 60px;
      font-size: 14px;
    }
    .footer-content {
      text-align: center;
      line-height: 1.8;
    }
    .footer-content p {
      margin-bottom: 12px;
    }
    .footer-content p:last-child {
      margin-top: 20px;
      padding-top: 20px;
      border-top: 1px solid #444;
      font-size: 12px;
      color: #999;
    }

    /* 视频播放弹窗 */
    #videoContainer {
      display: none;
    }
    .video-player {
      width: 100%;
      max-width: 900px;
      height: 500px;
      border-radius: 8px;
    }

    /* 响应式设计 */
    @media (max-width: 1392px) {
      .container {
        width: 100%;
      }
      .event-content-meeting, .event-content-meeting-row2 {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    @media (max-width: 992px) {
      .header-main {
        flex-direction: column;
        padding: 15px 0;
      }
      .logo {
        margin-bottom: 15px;
      }
      .nav li {
        margin: 0 12px;
      }
      .banner-info {
        left: 20px;
        max-width: 250px;
      }
      .banner-info .title {
        font-size: 24px;
      }
      .guide-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .event-content-interview {
        flex-direction: column;
      }
      .event-content-meeting, .event-content-meeting-row2 {
        grid-template-columns: repeat(3, 1fr);
      }
      /* 响应式下顶部布局调整 */
      .top-banner-wrapper {
        flex-direction: column;
      }
      .banner-left, .banner-right {
        height: auto; /* 响应式下高度自适应 */
        flex: none;
        width: 100%;
      }
      .banner-swiper {
        height: 300px; /* 移动端幻灯片高度 */
      }
      .recommend-videos {
        height: auto;
        min-height: 400px;
        overflow: visible !important; /* 移动端允许正常显示 */
      }
      .recommend-inner {
        height: auto;
        overflow-y: visible;
      }
    }

    @media (max-width: 768px) {
      .header-top {
        height: auto;
        padding: 8px 0;
      }
      .header-top-content {
        justify-content: center;
        flex-wrap: wrap;
      }
      .header-top a {
        margin: 0 10px;
      }
      .nav {
        flex-wrap: wrap;
        justify-content: center;
      }
      .nav li {
        margin: 5px 10px;
      }
      .banner-info {
        position: static;
        transform: none;
        color: #333;
        padding: 15px;
        max-width: 100%;
        text-shadow: none;
      }
      .guide-grid {
        grid-template-columns: 1fr;
      }
      .video-grid {
        grid-template-columns: 1fr;
      }
      .equipment-grid {
        flex-direction: column;
      }
      .equipment-item {
        min-width: auto;
        margin-bottom: 15px;
      }
      .event-content-meeting, .event-content-meeting-row2 {
        grid-template-columns: repeat(2, 1fr);
      }
      .event-item {
        flex-direction: column;
      }
      .event-item-img {
        width: 100%;
        height: 180px;
      }
      .event-item-play-btn {
        left: 50%;
        top: 40%;
        transform: translate(-50%, -50%);
      }
      /* 移动端下拉菜单调整 */
      .dropdown-menu {
        right: 50%;
        transform: translateX(50%);
      }
    }

    @media (max-width: 480px) {
      .event-content-meeting, .event-content-meeting-row2 {
        grid-template-columns: 1fr;
      }
      .banner-swiper {
        height: 200px; /* 小屏幻灯片高度 */
      }
    }