.slideshow {
    height: 400px;
    object-fit: cover;
}
.f-wrap{
    flex-wrap: wrap;
}
.f-c-s{
    display: flex;
    justify-content: center;
    align-items: flex-start;
}
.f-b-s{
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}
.f-s-s{
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
}
.f-e-s{
    display: flex;
    justify-content: flex-end;
    align-items: flex-start;
}
.f-c-c{
    display: flex;
    justify-content: center;
    align-items: center;
}
.f-b-c{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.f-s-c{
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.f-e-c{
    display: flex;
    justify-content: flex-end;
    align-items: center;
}
.f-col{
    flex-direction: column;
}
.flex-normal{
    display: flex;
    justify-content: center;
    align-items: center;
}
.flex-between{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.flex-start{
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.flex-end{
    display: flex;
    justify-content: flex-end;
    align-items: center;
}
.flex-column{
    flex-direction: column;
    display: flex;
    justify-content: center;
    align-items: center;
}
.flex-1{
  flex: 1;
}
.flex-2{
  flex: 2;
}
.flex-3{
  flex: 3;
}
.flex-4{
  flex: 4;
}
.flex-5{
  flex: 5;
}
.flex-6{
  flex: 6;
}
.flex-7{
  flex: 7;
}
.flex-8{
  flex: 8;
}
.flex-9{
  flex: 9;
}

.textoverflow1{
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.textoverflow2{
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}


  body {
    background-image: linear-gradient(180deg, #bfeaff, transparent 250px);
  }

  .listsin-1 {
    padding-bottom: 15px;
    border-bottom: 1px solid #eeeeee;
    display: block;
    transition: .25s ease-in-out;
    margin: 15px 0;
  }

  .listsin-1:hover {
    transform: translateX(-5px);
  }

  .navabars-sin {
    padding: 10px 20px;
    background-color: #eeeeee;
    color: #222222;
    border-radius: 100px;
    font-size: 15px;
    width: fit-content;
    min-width: fit-content;
    cursor: pointer;
    transition: .25s ease-in-out;
  }

  .navabars-sin:hover {
    background-color: #dddddd;
    color: #222222;
  }

  .navabars-sin.active {
    color: #ffffff;
    background-color: #0056e1;
    font-weight: 600;
  }

  .newssin-list-sin {
    cursor: pointer;
    background-color: #ffffff;
    box-shadow: 2px 2px 4px 0 #dee4e6;
    width: calc(25% - 15px);
    border-radius: 10px;
    overflow: hidden;
    transition: .25s ease-in-out;
  }

  .newssin-list-sin:hover {
    transform: translateY(-5px);
  }

  .newssin-list-pro-sin {
    cursor: pointer;
    width: calc(50% - 10px);
    height: calc(50% - 10px);
    position: relative;
    background-color: #eeeeee;
    box-shadow: 2px 2px 4px 0 #dee4e6;
    border-radius: 10px;
    overflow: hidden;
  }
  
    /* 左侧内容区：占主要宽度，内部纵向排列文章卡片 */
    .content-area {
      width: 75%;
      display: flex;
      flex-direction: column;
      gap: 0; /* 文章卡片之间的间距 */
    }

    /* 右侧侧边栏：占比较小，内部纵向排列模块 */
    .sidebar {
      width: 25%;/* 占比更小 */
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    /* 文章卡片：Flex 横向排列（文字+图片） */
    .article-card {
      display: flex;
      gap: 15px;
      padding: 20px 0;
      border-bottom: 1px solid #eee;
      transition: .25s ease-in-out;
      cursor: pointer;
    }
    .article-card:hover {
      transform: translateX(-5px);
    }
    .article-text {
      flex: 1; /* 文字区占满剩余宽度 */
    }
    .article-img {
      width: 180px;
      height: 110px;
      object-fit: cover;
      border-radius: 10px;
    }

    /* 侧边栏模块样式 */
    .sidebar-module {
      padding: 20px;
      border: 1px solid #eeeeee;
      border-radius: 10px;
    }
    .module-title {
      font-weight: bold;
      margin-bottom: 10px;
    }
    .module-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .module-list li {
      margin-bottom: 8px;
      font-size: 14px;
    }

    /* 适配小屏幕（可选） */
    @media (max-width: 768px) {
      .container {
        flex-direction: column; /* 小屏幕下改为纵向排列 */
      }
    }

    .nav-item{
      position: relative;
    }
    .nav-item .navdropdown-menu{
      padding: 10px;
      position: absolute;
      top: 100%;
      left: 0;
      width: 100px;
      background-color: #ffffff;
      box-shadow: 2px 2px 4px 0 #dee4e6;
      border-radius: 10px;
      overflow: hidden;
      display: none;
    }
    .nav-item:hover .navdropdown-menu{
      display: block;
    }
    
    .nav-item .navdropdown-menu li a{
      display: flex;
      padding: 5px;
      border-radius: 6px;
    }
    .nav-item .navdropdown-menu li a:hover{
      background-color: #ecf3ff;
    }