.header,.main,.nav .nav-cont{margin:0 auto;width:1200px;}
.main .main-left{margin:0 auto;width:1100px;}
.picarea li{float:left;box-sizing:border-box;padding:0 5px;width:25%;height:215px;text-align:center;}
.picarea li img{width:230px;height:142px;border-radius:5px;}
.picarea li .tit{padding:5px 0;}
.picarea li .tit a{font-size:16px;}
.dask{position:relative;width:100%;}
.dask .picleft{position:absolute;top:40%;left:-40px;display:none;width:75px;height:75px;border-radius:10px;background:#efefef url(https://imgs.news.cn/2021detail/images/icon-arrow.png) 50% 20px no-repeat;}
.dask .picright{position:absolute;top:40%;right:-40px;display:none;width:75px;height:75px;border-radius:10px;background:#efefef url(https://imgs.news.cn/2021detail/images/icon-arrow.png) 50% -90px no-repeat;}
.main #detail #detailContent img{max-width:90%;}
@media screen and (max-width:767px){.main{width:100%;font-size:16px;}
.main .main-left{width:100%;}
.main #detail img{height:auto;max-width:100%;}
.main #detail{font-size:16px;padding:20px 0;}
.main #detail img{max-width:100%;}
.picarea li{float:left;box-sizing:border-box;padding:0 5px;width:50%;height:200px;text-align:center;}
.picarea li:nth-child(n+11){display:none;}
.picarea li img{width:100%;height:auto;border-radius:5px;}
.picarea li .tit{padding:5px 0;}
.picarea li .tit a{font-size:16px;}
}