.main{padding: 100px 0;}
.nav-box{margin:0 ;position: relative;height: 50px;color: #fff;-webkit-box-shadow: 0px 3px 5px #E6E7E9;-moz-box-shadow: 0px 3px 5px #E6E7E9;box-shadow: 0px 3px 5px #E6E7E9;background: #fff;}
.nav-box h2{margin:0 ;color: #333;font-size: 22px;line-height: 50px;}
.left{width: 200px;min-height: 500px;float: left;padding: 50px 10px;/*position: fixed;*/}
.left dl{width:100%;height: 40px;overflow: hidden;}
.left dl.show{height: 100%;}
.left dl dt{font-size: 18px;margin-bottom: 10px;font-weight: normal;}
.left dl dd{line-height: 30px;margin-left: 15px;}
.left dl dd.selected a{color: #ef1411}
.left dl dd a{color: #333}
.left dl dd a:hover{color: #ef1411}
.right{width: 970px;margin-left: 26px;float: left;background: #fff;padding: 50px;min-height: 800px;}
.right p{line-height: 220%;font-size: 117%;}
.about_tit{
    background: #f9e72c;
    width: 250px;
    line-height: 200%;
    padding: 0 24px;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    border-radius: 6px;
    margin-bottom: 24px;
}