.aboutC{min-height: 600px; margin-bottom: 50px; display: flex;}

.nr_left{ float:left;}
.leftnemu {width:190px;background:#f5f7fa;box-shadow:0 0 3px #ddd;padding:10px 0;}
.leftnemu.on {position:fixed;top:0;}
.leftnemu dt {overflow:hidden;position:relative;font-size:14px;padding:15px 0 15px 18px;cursor:pointer;line-height:25px;transition:all .4s;-webkit-transition:all .4s;-moz-transition:all .4s;-o-transition:all .4s;}
.leftnemu dt.on a,.leftnemu dt:hover {color:#3191f5;}
.leftnemu dt i {vertical-align:middle;display:inline-block;margin-right:10px;width:22px;height:22px;background-repeat:no-repeat;background-position:center;background-size:cover;}

.leftnemu dt i.icon-shenhe {font-size:24px;}
.leftnemu dt i.icon-huiyuan {font-size:22px;}
.leftnemu dt:hover em,.leftnemu dt.on em{font-weight:bold !important;color:#3191f5;}
.leftnemu .dwn dt:after {display:block;width:8px;height:8px;border-top:1px solid #777;border-right:1px solid #777;transform:rotate(45deg);-webkit-transform:rotate(45deg);-moz-transform:rotate(45deg);-o-transform:rotate(45deg);-ms-transform:rotate(45deg);content:"";position:absolute;top:50%;margin-top:-3px;right:18px;transition:all .4s;-webkit-transition:all .4s;-moz-transition:all .4s;-o-transition:all .4s;}
.leftnemu .dwn dt.on:after {content:"";border-color: #3191f5;}



	
.about_content {min-height:800px;flex:1;background:#fff;box-shadow:0 0 3px #ddd;float:right;line-height: 24px; margin-left: 30px;padding:30px;}
.about_content .detail h1 {font-size:24px;color:#333; }
.about_content .detail p {font-size:14px;color:#828282;padding: 10px 0 10px;text-indent: 2em;}
.about_content .detail .wrap {margin:30px auto 50px;}