img{    width: auto;
    height: auto;}
.list{ width:100%; height:auto; display:block; overflow:hidden; margin:15px auto 0px auto;}
.list .row{ width:25%; float:left; display:inline; margin-right:10px;}
.list .row .pic{ width:90%; height:300px; display:block; overflow:hidden;}
.list .row .pic img{width:100%;}
.list .row .title{ width:100%; height:70px; line-height:25px; display:block; overflow:hidden; text-align:center; margin-top:5px;color: #666666;font-size: 14px;}
.main_conR ul li{text-indent: 0px; border-bottom:0px;}
.imgbed{
    position: relative;
    display: block;
    height: 0;
    width: 100%;
    padding-top:140%;}
.imgbed img{
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;}


@media (max-width:768px) {
  .list .row{width: 33%;}
  .list .row .pic img {height:auto;}
  .list .row .pic{height:auto;}
}