@font-face {
    font-family: 'Source Sans-Regular';
    src:url('@/assets/fonts/NotoSansHans-Regular.otf') format('truetype');
    font-weight: normal;
    font-style: normal;
  }
  @font-face {
    font-family: 'Source Sans-Black';
    src: url('@/assets/fonts/NotoSansHans-Black.otf') format('woff2'),  format('truetype');
   /* 对于Black，通常是900  font-weight: 900; */
    font-style: normal;
  }
 