/*院报*/
.pic_listYB{ padding:10px 20px;}
.pic_listYB li{ float:left; width:200px; margin-right:42px; margin-bottom:20px; +margin-right:30px; }
.pic_listYB li:nth-child(4n){ margin-right:0px;}
.imgYB_Box{ width:100%; height:250px; overflow:hidden;display: block;border: 1px solid #ccc;}
.imgYB_Box:hover{ border:1px solid #15a4a8;}
.imgYB_Box img{ width:100%;transition: all 0.2s ease 0s;-moz-transition: all 0.2s ease 0s;-webkit-transition: all 0.2s ease 0s;-o-transition: all 0.2s ease 0s;}
.pic_listYB li h2{ line-height:30px; font-size:14px; text-align:center;}
.imgYB_Box img:hover{-webkit-transform:scale(1.02);-moz-transform: scale(1.02);-o-transform:scale(1.02);}

@media only screen and (max-width:768px){
.pic_listYB li:nth-child(3n){ margin-right:0px;}
.pic_listYB li:nth-child(4n){ margin-right:42px;}
}
@media only screen and (max-width:500px){
	.pic_listYB{ padding:0px;}
	.pic_listYB li{ margin:0 10px;}
.pic_listYB li:nth-child(4n),.pic_listYB li:nth-child(3n){ margin-right:10px;}
}