@media screen and (max-width:1550px) {
    header {
        width: 1550px;
        margin: 0 auto;
    }
}
@media screen and (min-width:1400px) and (max-width:1920px) {
    header {
        width: 1920px;
        margin: 0 auto;
    }

}

@media screen and (min-width:1201px) {
    header {
      
        width: 1920px;
    }
}


    
    
    
    .content-left {
      width: 19%;
      height: 490px;
   
      float: left;
    }

    .content-right {
      width: 81%;
     
      border: 1px solid #e1e1e1;
   
    border-radius: 15px;
      float: left;
    }
    .zuoo{
    width: 88%;
    height: 630px;
     border: 1px solid #e1e1e1;
    background-color: #f4f4f4;
    border-radius: 15px;
    }
    .left-title {
      width: 100%;
      height: 50px;
    }

    .left-title>a {
     font-size: 25px;
      width: 100%;
      height: 50px;
      line-height: 55px;
      text-align: center;
      color: black;
      /*去掉a下默认下划线*/
      text-decoration: none;
      margin-left: 25px;
    }


    .nav {
      /*上下5,左右0*/
      margin: 5px 0;
     
    }
    .nav-menu{
       margin-top: 35px;
        width: 100%;
    }

    /*菜单项主标题*/
    .nav-title {
      height: 50px;
      width: 80%;
      color: black;
      text-align: center;
      line-height: 45px;
      cursor: pointer;
        margin-left: 10%;
      
    font-size: 20px;
    }

    /*子标题内容区*/
    .nav-content {
      width: 100%;
      height: 100%;
    }

    /*子标题的样式*/
    .nav-content> span {
      display: block;
      width: 80%;
      height: 47px;
      color: #818181;
      text-decoration: none;
      text-align: center;
         line-height: 44px;
      font-size: 17px;
      margin-left: 10%;
     
    }

    /*子标题鼠标经过时的改变颜色*/
    .nav-content>span:hover {
      background-color: #d97633;
      color: #fff;
    }
    .content-right .right_item {
      display: none;
    }
    .youshang{
        border-bottom: 1px solid;
    height: 70px;
     margin-right: 22px;
      margin-left: 22px;
    }
    
    .chugg{
        font-size: 25px;
    margin-left: 22px;
    margin-top: 7px;
   float: left;
    line-height: 64px;
    margin-right: 22px;
    }
     .chuggg{
        font-size: 25px;
    margin-left: 22px;
    margin-top: 7px;
   float: left;
   
    margin-right: 22px;
    }
    .ququan{
        margin: 0;
        padding: 0;
        z-index: 999 !important;
    }
    
    .selected {  
    color: white !important;  
}
    .clolumn-vva{
            margin-left: 30px;
    }
    
    .page-showPages{
        width: 100%;
            margin-top: 30px;
    }
    .esitecms-page{
        height: 40px;
    display: inline-block;
    }
    .esitecms-page a{
       font-size: 14px;
    margin: 0 5px;
    padding: 0 15px;
    border: 1px solid #e1e1e1;
    display: inline-block;
    width: fit-content;
    height: 40px;
    line-height: 40px;
    }
    .first-page{
            margin-left: 0;
    }
        
    
    
    
    .nav-title.active {  
    background-color: #2e64a2;  
    color: #fff;
}