.main{
    width:100%;
    height:auto;
    margin:0 auto;
}
.main .main_cont{
    max-width:1200px;
    height:auto;
    margin:0 auto;
}
.main .main_cont .main_title{
    height:auto;
    margin:0 auto;
    padding-bottom:5px;
    margin:50px auto 50px auto;
    font-size: 38px;
}
.main .main_cont h3{
    /*font-size:35px !important;*/
    text-align:center;
}
.main .main_cont span{
    display:block;
    font-size:16px;
    text-align:left;
    color: #4a4a4a !important;
}
.main .main_cont ul{
    width:100%;
    height:auto;
    margin:0 auto;
}
.main .main_cont ul li{
    float:left;
    width:50%;
    line-height: 24px;
    padding-right: 20px;
}
.main .main_cont ul li img{
    width:100%;
}
.main .main_cont ul li p{
    width:100%;
    text-align:left;
    word-break: break-all;
    padding:0px 40px;
    font-size:14px;
    padding:10px 0px;
}
/* 发展史 */
.posit{
    position:relative;
    margin:0 auto;
    padding:10px;
}
.posit img{
    margin:0 auto;
    margin-top: -50px;
    margin-left: 80px;
}