@font-face {
   font-family: '思源黑体-Bold';
   font-display: swap;
   src: url('思源黑体-Bold/font.ttf');
}
@font-face {
   font-family: '思源黑体-Light';
   font-display: swap;
   src: url('思源黑体-Light/font.ttf');
}
@font-face {
   font-family: '思源黑体-Medium';
   font-display: swap;
   src: url('思源黑体-Medium/font.ttf');
}