@media (min-width: 768px) {
    .add_aboutc{width:100%;height:auto;overflow:hidden;margin:auto;padding-top: 30px;}
    .add_aboutc >ul{width:100%; height:auto; overflow:hidden; margin:auto;}
    .add_aboutc .about_li{height:auto; overflow:hidden; margin-bottom:50px;}
    .add_aboutc .about_img{width: 54%;float:left;height:auto;overflow:hidden;}
    .add_aboutc .about_info{width: 44%;float:right;height:auto;overflow:hidden;}
    .add_aboutc .about_tcn{height:25px; line-height:25px; color:#1E1E1E; text-align:left; font-size:24px;}
    .add_aboutc .about_ten{line-height:30px; color:#6B798E; text-align:left; font-size:12px;}
    .add_aboutc .about_c{line-height:27px;  color:#666666; text-align:left; font-size:14px; margin-top:30px;}
    .add_aboutc .about_li:nth-child(2) .about_img{float:right;}
    .add_aboutc .about_li:nth-child(2) .about_info{float:left;}
    .add_aboutc .about_li:nth-child(2) .about_c{width:450px;}
    .add_aboutc .about_li:nth-child(3) .about_c{width:450px;}
    .add_aboutc .about_hj{width: 24%;margin-right: 1.33%;height:auto;overflow:hidden;}
    .add_aboutc .about_hj:nth-child(4){margin-right:0px;}
    .add_aboutc .about_sxl{width:100%; height:auto; overflow:hidden; margin:auto; font-size:66px; color:#383838; font-weight:bold; margin-top:20px;}
    .add_aboutc .about_sxl font{display:block; font-size:16px; color:#383838;}
    .add_aboutc .sxlnum{width:50%; height:auto; float:left;}
    .add_aboutc .sxlzs{width:50%; height:auto; float:left;}
}
@media (max-width: 767px) {
    .add_aboutc{width:95%; height:auto; overflow:hidden; margin:auto;    margin: 40px auto 0;}
    .add_aboutc ul{width:100%; height:auto; overflow:hidden; margin:auto;}
    .add_aboutc .about_li{height:auto; overflow:hidden; margin-bottom:30px;}
    .add_aboutc .about_img{ width:100%; height:auto; overflow:hidden;}
    .add_aboutc .about_img img{width:100%;}
    .add_aboutc .about_info{ width:100%;height:auto; overflow:hidden; margin-top:20px;}
    .add_aboutc .about_tcn{height:25px; line-height:25px; color:#1E1E1E; text-align:left; font-size:24px;}
    .add_aboutc .about_ten{line-height:30px; color:#6B798E; text-align:left; font-size:12px;}
    .add_aboutc .about_c{line-height:27px;  color:#666666; text-align:left; font-size:14px; margin-top:50px;}
    .add_aboutc .about_hj{width:48%; margin-left:1%; margin-bottom:10px; margin-right:1%; height:auto; overflow:hidden;}
    .add_aboutc .about_hj img{width:100%;}
    .add_aboutc .about_sxl{width:100%; height:auto; overflow:hidden; margin:auto; font-size:36px; color:#383838; font-weight:bold; margin-top:20px;}
    .add_aboutc .about_sxl font{display:block; font-size:16px; color:#383838;}
    .add_aboutc .sxlnum{width:50%; height:auto; float:left;}
    .add_aboutc .sxlzs{width:50%; height:auto; float:left;}
}