.box{ width: 100% margin:0 auto;}
    /*案例*/
.case_all{
width: calc(100% + 0px); 
margin-bottom:50px;
}    
.case_all .picScroll-left{ position:relative; }
.case_all .picScroll-left .hd{   height:40px;z-index: 99;  position: absolute;text-align:center;  margin: 0 auto; width: 100%;left: 0;right: 0;top:350px;}
.case_all .picScroll-left .hd .prev{ display:block;  width:40px; height:40px; cursor:pointer; background:url(../images/013.png) 0 0 no-repeat; background-size:cover; position:absolute;left:10px;top: -180px;}
.case_all .picScroll-left .hd .next{ display:block;  width:40px; height:40px;  position:absolute;right:10px; top:-180px; cursor:pointer; background:url(../images/014.png) 0 0 no-repeat; background-size:cover;}
.case_all .picScroll-left .hd .prevStop{ background-position:-60px 0; }
.case_all .picScroll-left .hd .nextStop{ background-position:-60px -50px; }
.case_all .picScroll-left .bd{ padding:0; position:relative; overflow:hidden;  }
.case_all .picScroll-left .bd ul{ overflow:hidden; zoom:1; }
.case_all .picScroll-left .bd ul li{ margin-right:20px; float:left; _display:inline; overflow:hidden; width:32.8%;box-sizing: border-box;
 display:block; background:#f9f9f9;}
.case_all .picScroll-left .bd ul li .pic{ text-align:center; }
.case_all .picScroll-left .bd ul li .pic img{ width:100%;  height:auto; display:block; }
.case_all .picScroll-left .bd ul li .pic a:hover img{ border-color:#999;  }
.case_all .picScroll-left .bd ul li .title{ line-height:60px; height:60px; font-size:20px; color:#555; transition:0.3s all ease;}
.case_all .picScroll-left .bd ul li .div_item_body{ padding:0 50px 50px 50px;font-size:16px;font-weight:lighter; line-height: 32px; color: #888;} 
.case_all .picScroll-left .txt{text-align:center;}
.case_all .picScroll-left .txt a {
    color: #555;
}
.case_all .picScroll-left .txt:hover a {
    color: #fff;
}
.case_all .picScroll-left .bd ul li .title:hover {
    background: #108DDF;
}

@media (max-width: 768px) {
.case_all .picScroll-left .hd{   height:40px; top:250px;}
.case_all .picScroll-left .hd .prev{width:40px; height:40px;left:0px;}
.case_all .picScroll-left .hd .next{width:40px; height:40px;right:0px;}	
}