.about-main{
    margin-top:20px;
}
.left{
    margin-right:50px;
    width:170px;
}
.jienjie-menu-item{
    height:50px;
    line-height:50px;
    text-align:center;
    cursor: pointer;
    border-bottom:1px solid #707070;
}
.jienjie-menu-active{
    color:#1185EE;
}
.jienjie-menu-item:hover{
    color:#1185EE;
}
.right{
    flex:1;
}
.jianjie-item{
    display:none;
}
.jianjie-active{
    display:block;
}
.about-title{
    font-size: 16px;
    font-weight: bold;
    color: #111111;
}
.about-desc{
    margin-top:30px;
}
.about-desc p{
    margin-top:20px;
    font-size:14px;
    line-height:32px;
    color:#111;
    text-indent:2em;
}