.policybigdata-all
{
    height:100vh;
    width: 100vw;
    background-color:#021152;
}
.policybigdata-head{
    height:40px;
    line-height:40px;
    padding-top:10px;
    text-align:center;
    color:#fff; 
    font-size:26px;
    font-weight:700;
}
.policybigdata-left,
.policybigdata-right{
    width:30%;
    height:calc(100% - 47px);
    float:left;
}
.policybigdata-medium{
    width:40%;
    height: calc(100% - 47px);
    float:left;
}
.policybigdata-item1,
.policybigdata-item2,
.policybigdata-item5,
.policybigdata-item6{
    height:46%;
    width:94%;
    margin:2%,3%;
}
