@font-face {
    font-family: Source Han Sans CN;
    src: url(../font/SOURCEHANSANSCN-heiti-BOLD.OTF);
    font-weight: 700;
}
@font-face {
    font-family: Source Han Sans CN;
    src: url(../font/SOURCEHANSANSCN-heiti-MEDIUM.OTF);
    font-weight: 500;
}