.bg{
    width:100%;
    height: 38%;
    position: absolute;
    background-image: url("../images/backTop.png");background-repeat:no-repeat;
    background-size:100% 100%;
    margin: 0;
}
.logo{
    position: relative;
    top: 25%;
    text-align: center;
}
.menu{
    position: relative;
    top: 53%;
    left: 12.5%;
    width: 75%;
    height: 100%;

}
.menu01, .menu02 ,.menu03 ,.menu04{

    width:45%;
    height:45%;
    position: relative;
    text-align: center;
    float: left;
    margin-left: 4%;
    margin-top: 4%;
    background:rgba(255,255,255,1);
    border:1px solid rgba(33,72,222,0.14901960784313725);
    box-shadow:8px 8px 10px rgba(33,72,222,0.08);
    opacity:1;
    border-radius:10px;
}
.menu_text{
    font-size:40px;
    font-family:Source Han Sans CN;
    font-weight:400;
    line-height:51px;
    color:rgba(53,106,253,1);
    opacity:1;
}
.inMenu{
    position: relative;
    top: 20%;
}