@font-face {
   font-family: 'PingFang Heavy';
   font-display: swap;
   src: url('PingFang Heavy/font.ttf');
}
@font-face {
   font-family: 'PingFang Bold';
   font-display: swap;
   src: url('PingFang Bold/font.ttf');
}
@font-face {
   font-family: 'PingFang Medium';
   font-display: swap;
   src: url('PingFang Medium/font.ttf');
}
@font-face {
   font-family: 'PingFang Regular';
   font-display: swap;
   src: url('PingFang Regular/font.ttf');
}