.hide{display: none;}
.about-us{background:url(../images/about-banner.jpg) no-repeat center;height:200px;}
.bgse{background-color: #f3130e;color:#fff;}
.culture{width: 1200px;margin:30px auto;height: auto;}
.side-nav{width: 220px;float:left}
.side-nav .about-tit{padding-left: 20px;font-size:16px;line-height: 46px;background-color:#f3130e;color:#fff;font-weight: normal;}
.side-nav dl{border:1px solid #ebebeb;}
.side-nav dl dt{padding-left:20px;font-size:14px;line-height: 40px;border-bottom: 1px dashed #d1d1d1;position: relative;cursor: pointer;}
.side-nav dl dt:last-child{border:none;}
.nav-right{float:right;width: 890px;}
.nav-cont h2{font-size:17px;line-height: 45px;color:#333;font-weight: normal;}
.nav-cont p{font-size:16px;line-height: 30px;color:#333; text-indent: 2em;}
.nav-cont .neirong{margin-top: 16px;}
.nav-cont .neirong img{display: inline;}