.banner{
    width: 100%;
    height: 380px;
}
.banner_div{
    width: 100%;
    height: 100%;
    background: url(../images/ProjectAndCase.png) no-repeat;
    background-size: 100% 100%;
    text-align: center;
}
.banner_div_p1{
    font-family: SOURCEHANSANSCN-BOLD;
    font-size: 48px;
    padding-top: 13%;
}
.banner_div_p2{
    font-family: SOURCEHANSANSCN-Regular;
    font-size: 20px;
}

.nav{
    width: 100%;
    height: 60px;
    font-family: SOURCEHANSANSCN-Regular;
    font-size: 14px;
    text-align: center;
    background: #FFFFFF;
    box-shadow: 0px 3px 6px rgba(0, 17, 58, 0.1);
    opacity: 1;
}
.nav_div{
    width: 100%;
    height: 100%;
    padding-top: 10px;
}

.projectBody{
    width: 100%;
    /*height: 700px;*/
}