.banner{
    width:100%;
    height:240px;
    background: url(../img/about_bg.jpg) center no-repeat;
    background-size:1920px 240px ;
}
.main{
    width:100%;
    height:auto;
    min-height: 400px;
    background: rgb(250,250,250);
    padding:10px 0;
}
.main .section{
    width:1200px;
    height:auto;
    margin:20px auto;
}
.main .section .section_left{
    display: inline-block;
    width:322px;
    height:auto;
    background: white;
    vertical-align: top;
    margin-right:40px;
}
.main .section .section_left>div{
    width:282px;
    height:auto;
    padding:20px;
    border-bottom:1px solid rgb(229,229,229);
}
.main .section .section_left>div>span:nth-child(1){
    display: block;
    font-size: 30px;
    color:rgb(235,235,235);
}
.main .section .section_left>div>span:nth-child(2){
    display: block;
    font-size: 18px;
}
.main .section .section_left>div>span:nth-child(3){
    display: block;
    width:40px;
    height:4px;
    background: rgb(244,127,34);
    margin-top:10px;
}
.main .section .section_left>ul{
    width:282px;
    height:auto;
    padding:10px 20px ;
    border-top:1px solid rgb(229,229,229);
    margin-top:2px;
}
.main .section .section_left>ul li{
    display: block;
    width:282px;
    height:auto;
    padding:2px 0;
    border-bottom:1px dashed rgb(229,229,229);
}
.main .section .section_left>ul li a{
    display: block;
    width:276px;
    height:50px;
    line-height: 50px;
    color:gray;
    font-size: 15px;
    background: url(../img/navl_bg2.png) center no-repeat;
    background-size: 276px 50px;
    text-align: left;
}
.main .section .section_left>ul li .active{
	background: url(../img/navl_bg.png) center no-repeat;
}
.main .section .section_left>ul li .active span{
	color:white;
}
.main .section .section_left>ul li a:hover{
     background: url(../img/navl_bg.png) center no-repeat;
 }
.main .section .section_left>ul li a:hover span{
    color:white;
}
.main .section .section_left>ul li a span{
    display: block;
    height:50px;
    line-height: 50px;
    color:gray;
    margin-left:80px;
}
.main .section .section_right{
    display: inline-block;
    width:830px;
    height:auto;
}
.main .section .section_right .tit{
    width:790px;
    height:60px;
    line-height: 60px;
    padding:0 20px;
    color:gray;
    border-bottom:1px solid rgb(229,229,229);
}
.main .section .section_right .tit span{
    margin-left:4px;
    font-size: 14px;
}
.main .section .section_right .tit a{
    color:gray;
    font-size: 14px;
}
.main .section .section_right>div:nth-child(2){
    width:790px;
    padding:0 20px;
}
.main .section .section_right>div:nth-child(2)>span{
    display: block;
    width:790px;
    height:70px;
    line-height: 70px;
    font-size: 20px;
    text-align: center;
}
.main .section .section_right>div:nth-child(2)>p{
    font-size: 14px;
    line-height: 30px;
    color:gray;
    margin-bottom:10px;
    text-indent: 2em;
}
.main .section .section_right>div:nth-child(2)>img{
    display: block;
    width:100%;
    height:auto;
    margin-bottom:10px;
}