/* 分类 */
.download{
    background: #F6F6F6;
    overflow: hidden;
}
.screen {
    background: #FFFFFF;
    margin-top: 20px !important;
}
.screen div{
    height: 62px;
    border-bottom: 1px solid #DADADA;
    padding-left: 17px;
}
.screen div:last-child{
    border:none;
}
.screen div span{
    font-size: 14px;
    color: #343434;
    margin-right: 21px;
}
.screen div ul li {
    cursor: pointer;
    height: 34px;
    line-height: 34px;
    padding: 0 12px;
    border-radius: 17px;
    margin-right: 20px;
    color: #666666;
}
.screen div ul li:last-child{
    margin-right: 0;
}
.screen div ul .active{
    background: #1290FE;
    color: #FFFFFF;
}
.download_box{
    margin-top: 20px !important;
}
.download_box ul{
    display: grid;
    grid-template-columns: repeat(4,1fr);
    grid-row-gap: 20px;
    grid-column-gap: 20px;
}
.download_box ul li{
    cursor: pointer;
    width: 285px;
    height: 252px;
    background: #FFFFFF;
    border-radius: 10px;
}
.download_box ul li a>img{
    display: block;
    width: 285px;
    height: 160px;
    border-radius: 10px 10px 0px 0px;
    margin-bottom: 13px;
}
.download_box ul li p:nth-child(2){
    height: 40px;
    padding: 0 10px;
    font-size: 18px;
    color: #333333;
    line-height: 21px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2 ; 
    -webkit-box-orient: vertical ;
    white-space: normal;
    margin-bottom: 14px;
}
.download_box ul li p:nth-child(3){
    padding: 0 10px;
    height: 9px;
    font-size: 12px;
    color: #999999;
}
.download_box ul li p:nth-child(3) img{
    width: 12px;
    height: 12px;
    display: inline-block;
    margin-right: 4px;
}
.download_box ul li p:nth-child(3) span:nth-child(2){
    margin-right: 13px;
}