ul.article_list.mt20.fr{width:330px;}
a.Img_Box{display: block;width:100%;margin-top: 20px;}
a.Img_Box img{width:100%;height:auto;}

@media only screen and (max-width: 768px){
	.W990{width:100%;}
 .W280{width:100%;}
	.con_R.fr.W290{margin-top:25px;}
 ul.article_list.mt20.fr,.scroll_img{width:48%;}
 .pic li{width:100%!important;}
 .con_R .con_box {width: 31%;float: left;margin:25px 1% 0}	
 ul.article_list li{overflow:hidden;white-space: nowrap;text-overflow: ellipsis;width:100%;box-sizing: border-box;}
}
@media only screen and (max-width: 640px){
	.scroll_img{display: none}
	ul.article_list.mt20.fr{width:100%;}
	.con_R .con_box{width:100%;float: none;margin: 25px 0 0;}
	
}