.content_left{
    width:200px;
}
.content_center{
    width:720px;
}
.content_right{
    width:250px;
}
@media screen and (max-width: 1920px) and (min-width: 1500px) {
    .content_left{
        width: 340px;
    }
    .content_right{
        width: 340px;
    }
}
@media screen and (max-width: 1500px) {
    .content_left{
        width: 200px;
    }
    .content_right{
        width: 250px;
    }
}
.contentbox{
    background:#fff;
    padding:20px 10px;
    border-radius: 10px;
    box-shadow: 0 2px 20px 3px rgba(0,0,0,0.1);
}
.lefttitle{
    font-size:20px;
    color:#333;
    padding-left:15px;
    font-weight: bold;
    margin-bottom:20px;
    padding-bottom:10px;
    border-bottom:1px solid #CCC;
    position: relative;
}
.lefttitle::before{
    content:'';
    width:2px;
    height:20px;
    background:#5884dd;
    position: absolute;
    left:0;
    top:0px;
}
.leftlist{
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom:15px;
    padding-bottom:10px;
    border-bottom:1px dashed #5884dd;
    cursor: pointer;
}
.videoimg{
    width:30px;
    margin-right:10px;
}
.vi_title{
    font-size:14px;
    font-weight: bold;
    line-height: 22px;
    color:#333;
    flex: 1;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}
.leftlist:hover .vi_title{
    color:#5884dd;
}
.leftlist_active .vi_title{
    color:#5884dd;
}
/* 中间 */
.cen_list{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom:10px;
    border-bottom:1px dashed #5884dd;
    cursor: pointer;
    margin-bottom:15px;
}
.cenimg{
    width:80px;
    height:80px;
    border-radius: 5px;
    margin-right:10px;
}
.cen_title{
    font-size:16px;
    color:#333;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
}
.cen_time{
    font-size:14px;
    color:#999;
    margin:8px 0;
}
.cen_jianjie{
    font-size:14px;
    color:#999;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    line-height: 20px;
}
.cen_list:hover .cen_title{
    color:#5884dd;
}

.newbox{
    display: flex;
    justify-content: flex-start;
    align-items: center;
    flex-wrap: wrap;
}
.new_list{
    width:350px;
    padding:10px;
    box-shadow: 0 2px 20px 3px rgba(0,0,0,0.1);
    border-radius: 10px;
    background:#fff;
    margin-right:20px;
    margin-bottom:20px;
    cursor: pointer;
}
.new_list:nth-child(2n){
    margin-right:0px;
}
.newimg{
    display: block;
    margin:0 auto 10px;
    width:330px;
    height:230px;
}
.new_titl{
    width:330px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    font-size:14px;
    line-height: 20px;
    color:#333;
}
.bot_warp{
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top:10px;
}
.new_time{
    font-size:14px;
    color:#999;
    margin:10px 0;
}
.new_jianjie{
    width:280px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    font-size:14px;
    color:#999;
    line-height: 20px;
}
.new_more{
    font-size:14px;
    color:#5884dd;
    border:1px solid #5884dd;
    padding:3px 10px;
    border-radius: 20px;
}
.moreimg{
    width:22px;
    height:20px;
}
.new_list:hover .new_titl{
    color:#5884dd;
}

/* 右边 */
.right_list{
    padding-bottom:10px;
    border-bottom:1px dashed #5884dd;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom:15px;
    cursor: pointer;
}
.rightimg{
    width:60px;
    height:45px;
    margin-right:15px;
    flex-shrink: 0;
}
.right_cont{
    flex: 1;
}
.right_tit{
    font-size:14px;
    line-height: 20px;
    color:#333;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}
.right_num{
    display: flex;
    justify-content: flex-start;
    align-items: center;
    font-size:14px;
    color:#333;
    margin-top:5px;
}
.bofangimg{
    width:20px;
    height:20px;
    margin-right:5px;
}
.right_list:hover .right_tit{
    color:#5884dd;
}




/* 顶部 */
.topbox{
    position: fixed;
    right:30px;
    bottom:80px;
    width:40px;
    height:40px;
}
.topimg{
    width:40px;
    height:40px;
}