#nav{
    position: absolute;
    top: 50px;
    min-width: 1118px;
    width: calc(100% - 40px);
}
#nav .el-row{
    max-width: 1230px;
    margin: 0 auto;
}
#nav .box{
    float: right;
}
#nav .box ul li{
    float: left;
    position: relative;
    display: inline-block;
    padding: 0 4px;
    font-size: 16px;
    font-weight: 400;
    color: #333;
    cursor: pointer;
}
#nav .box ul li:hover a{
    color: #0096ff;
}
#nav .box ul li:nth-child(n+2){
    margin-left: 30px;
}
#nav .box ul li.active a{
    color: #255dcf;
    font-weight: 700;
}
#nav .box ul li.active:after{
    content: "";
    display: inline-block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: #255dcf;
    border-radius: 2px;
    left: 0;
    top: 27px;
}