body{
    background: #f5f8fb;
}
.main{
    width: 100%;
    min-width: 75rem;
    margin:0 auto 0;
}

.mainHead{
    width: 100%;
    min-width: 75rem;
    margin: 6.4rem auto 2.875rem;
    height: 28.5625rem;
    background: #2866a4;
}

.headCon{
    width: 75rem;
    margin: 0 auto;
    height: 100%;
    padding: 3.5625rem 5rem 4rem 5rem;
    box-sizing: border-box;
    background: url("../images/enterpriseLibrary/map.png") center no-repeat;
    background: cover;

}

.LibraryLogo{
    width: 26.4375rem;
    height: 9.25rem;
    margin: 0 auto 3.5625rem;

}

.LibraryLogo{
    width: 26.4375rem;
    height: 9.25rem;
    display: block;
}


.tab{
    width: 100%;
    display: flex;
    flex-direction: row;
    padding-left: 7px;
    box-sizing: border-box;
    margin-bottom: 1.25rem;
}

.itm{
    width: 4.4375rem;
    height: 1.875rem;
    border-radius: 0.125rem;
    text-align: center;
    line-height: 1.875rem;
    font-size: 1rem;
    font-weight: 400;
    color: #FFFFFF;
    margin-right: 2.625rem;
}

.itm a{
    width: 4.4375rem;
    height: 1.875rem;
    border-radius: 0.125rem;
    text-align: center;
    line-height: 1.875rem;
    font-size: 1rem;
    font-weight: 400;
    color: #FFFFFF;

}
.active a{
    background: #FFFFFF;
    color: #1576C9 !important;
    font-weight: 400;
}

.search{
    width: 100%;
    height: 3.125rem;
    display: flex;
    flex-direction: row;
    align-items: center;
    margin-bottom: 0.9375rem;
}

.searchIpt{
    flex: 1;
    height: 100%;
    border: none;
    outline: none;
    padding: 1.125rem 0.875rem;
    box-sizing: border-box;
    font-size: 1rem;
    font-family: SourceHanSansCN;
    font-weight: 400;
    color: rgba(000,000,000,0.8);
}

#search{
    width: 8.4375rem;
    height: 3.125rem;
    background: #1576C9;
    text-align: center;
    font-size: 1.125rem;
    font-family: SourceHanSansCN;
    font-weight: 400;
    color: #FFFFFF;
    border: none;
    outline: none;
    cursor: pointer;
}

/* 更改placeholder颜色 */
input::-webkit-input-placeholder{
    color: #B4B4B4;
}
input::-moz-placeholder{   /* Mozilla Firefox 19+ */
    color: #B4B4B4;
}

.hot{
    display: flex;
    flex-direction: row;
    align-items: center;
    font-size: 1rem;
    font-family: SourceHanSansCN;
    font-weight: 400;
    color: #FFFFFF;
    padding-left: 0.7rem;
}

.hot>a{
    margin-right: .5rem;
    font-size: 1rem;
    font-family: SourceHanSansCN;
    font-weight: 400;
    color: #FFFFFF;
}

.mainCenter{
    width: 75rem;
    margin: 0 auto 1.5rem;
    background: #FFFFFF;
    padding:1.5rem 0rem 1.5rem 1rem;
    box-sizing: border-box;
}

.cenHead{
    width: 100%;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 0.875rem;
    padding-right: 0.8125rem;
    box-sizing: border-box;
}

.cenHead a{
    font-size: 0.875rem;
    font-family: SourceHanSansCN;
    font-weight: 400;
    color: #6C6C6C;
    line-height: 1.125rem;
    margin-bottom: 1.8rem;
    padding: 0 0.25rem;
}

.mainList{
    display: flex;
    flex-direction: row;
    align-items: center;
    align-content: space-between;
    flex-wrap: wrap;
}

.lis{
    width: 13.375rem;
    margin-bottom: 1.4375rem;
    margin-right: 1.4375rem;
    box-shadow: 0rem 0.625rem 0.625rem rgba(0,0,0,0.1); 
    padding-bottom: 0.5rem;
}

.lis:nth-child(5n){
  margin-right: 0;
}

.lis>a:nth-child(1){
  display: block;
  width: 100%;
  height:13.5rem;
  /* margin-bottom: 1.5rem; */
  overflow: hidden;
  position: relative;
}

.liImg{
    display: block;
    width: 100%;
    height: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}

.linane{
    width: 13.375rem;
    font-size: 1rem;
    font-family: SourceHanSansCN;
    font-weight: 400;
    color: #4D4D4D;
    height: 3rem;
    text-overflow: -o-ellipsis-lastline;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;  
    line-clamp: 2; 
    -webkit-box-orient: vertical;
    line-height: 1.5;
    padding: 0 0.4rem;
    box-sizing: border-box;
    margin-top: 0.4rem;
}

/*投稿*/
.block_6 {
    display: flex;
    align-items: center;
    flex-direction: column;
    border-top-left-radius: 0.3125rem;
    border-bottom-left-radius: 0.3125rem;
    background-color: #26a5df;
    width: 4.125rem;
    height: 6.6875rem;
    overflow: hidden;
    position: fixed;
    top: 60%;
    right: 0;
    z-index: 9999;
    cursor: pointer;
}
.edit {
    position: relative;
    margin-top: 1.25rem;
    width: 1.5rem;
    height: 1.5rem;
}
.txt_5 {
    position: relative;
    margin-top: 0.625rem;
    max-width: 2.0625rem;
    height: 0.875rem;
    text-align: left;
    text-decoration: none;
    text-overflow: ellipsis;
    line-height: 0.875rem;
    letter-spacing: 0;
    color: #fefefe;
    font-size: 0.875rem;
}
.word_7 {
    position: relative;
    margin-top: 0.375rem;
    max-width: 2.1875rem;
    height: 0.875rem;
    text-align: left;
    text-decoration: none;
    text-overflow: ellipsis;
    line-height: 0.875rem;
    letter-spacing: 0;
    color: #fefefe;
    font-size: 0.875rem;
}

#pages {
  display: flex;
  flex-direction: row;
  justify-content: center;
  margin-bottom: 3.25rem;
  margin-top: 2.375rem;
}

#pages>li:nth-child(4n+1) {
  margin-right: 0.625rem;
}

#pages>li {
  float: left;
  padding: 0;
  cursor: pointer;
  border: solid thin #DDDDDD;
  border-radius: 4px;
  margin-right: 0.625rem;
  width: 1.875rem;
  height: 1.875rem;
  line-height: 1.875rem;
  text-align: center;
  margin-left: 0%;
  padding-bottom: 0 !important;
}

@media (max-width:1920px){
    html{
      font-size:16px;
    }
  }
  
  @media (max-width:1680px) {
    html{
      font-size:15px;
    }
  } 

  @media (max-width:1600px) {
    html{
      font-size: 14px;
    }
  }
  
  @media (max-width:1500px) {
    html{
      font-size: 13px;
    }
  }

  @media (max-width:1440px) {
    html{
      font-size: 13px;
    }
  }
  @media (max-width:1366px) {
    html{
      font-size:12.8px;
    }
  }
  
  @media (max-width:1360px) {
    html{
      font-size: 12.5px;
    }

  }
  
  @media (max-width:1280px) {
    html{
      font-size: 11px;
    }
  }
  
  @media (max-width:1240px) {
    html{
      font-size: 10px;
    }
  }

  @media (max-width:1152px) {
    html{
      font-size:10.5px;
    }
  }

  @media (max-width:1078px) {
    html{
      font-size:9px;
    }
  }

  @media (max-width:1024px) {
    html{
      font-size:10px;
    }
    .mainHead{
        height: 30.5625rem;
      }

  }
  
  @media(max-width :  964px ){ 
    html { font-size : 8.9px ;}
    .mainHead{
        height: 32.5625rem;
    }
  } 
  
  @media(max-width :  960px ){ 
    html { 
      font-size : 8.3px;
    }

    .block_6{
      width: 5.125rem;
      height: 8.6875rem;
    }

    .txt_5{
      margin-top: 1.625rem;
      height: 1.875rem;
    }

    .word_7{
      margin-top: 0rem;
    }

    .itm a{
      padding: 0.5rem;
    }

    .tab{
      margin-bottom: 2.25rem;
    }

    .linane{
      height: 4.8rem;
      padding: 0 1rem;
    }
  } 

   /* 移动端*/
   .isPhone{
    display: none !important;
  }

  .isPC{
    display: flex !important;
  }

  @media screen  and  ( max-width :  760px )  {
    html {
      font-size:13px;
    }
    
    .isPC{
        display: none !important;
    }

    .isPhone{
        display: flex !important;
    }

    .mainHead{
      width: 100%;
      min-width:100%;
      height: 24.5625rem;
    }
    .headCon{
        width: 100%;
    }
    #pages{
      margin-bottom: 0.25rem;
    }
    #pages>li{
      line-height: 2rem;
  }

    .mainCenter{
       width: calc(100vw - 1rem);
       padding: 1.5rem .8rem 1.5rem 0.8rem;
    }

    .lis{
      width: 48%;
      margin-bottom: 1.125rem;
      margin-right: 2%;
    }
 
    
    .lis:nth-child(5n){
      margin-right: 2%;
    }

    .lis:nth-child(3n){
      margin-right: 2%;
    }

    .lis:nth-child(2n){
      margin-right: 0%;
    }

    .liImg,.linane{
      width: 100%;
      /* height: auto; */
    }

    .cenHead a {
      margin-bottom: 1rem;
      margin-right: 0rem;
    }
    .cenHead{
      justify-content: space-around;
      margin: 0;
      padding-right: 0rem;
    }
    .LibraryLogo{
      width: 15.4375rem;
      height: 5.25rem;
    }

  }   

  @media screen  and  ( max-width :  720px )  {
    html {
      font-size : 12px;
     }
     .headCon{
       padding: 3rem 2rem 3rem 2rem;
     }

     .mainHead {
        margin: 5rem auto 2.875rem;
     }
     .lis {
      width: 48%;
      margin-bottom: 1.125rem;
      margin-right: 4%;
  }
     .lis:nth-child(5n){
      margin-right: 4%;
    }
    .lis:nth-child(3n){
      margin-right: 4%;
    }

      .lis:nth-child(2n){
        margin-right: 0;
      }
  }
  
  @media screen  and  ( max-width :  414px )  {
    html {
      font-size: 13.5px;
    }
  }
  
  @media screen  and  ( max-width :  375px )  {
    html {
      font-size: 12.5px;
    }
    /* .lis {
      width: 12.4rem;
    } */
  }