/* 自托管字体 — 替代 Google Fonts，保证国内访问速度。
   IBM Plex Sans 为可变字体（100-700 字重单文件）；中文回退系统字体（苹方/微软雅黑）。 */
@font-face{
  font-family:'IBM Plex Sans';
  font-style:normal;
  font-weight:100 700;
  font-display:swap;
  src:url('fonts/ibm-plex-sans-var.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:'IBM Plex Mono';
  font-style:normal;
  font-weight:400;
  font-display:swap;
  src:url('fonts/ibm-plex-mono-400.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Mono';
  font-style:normal;
  font-weight:500;
  font-display:swap;
  src:url('fonts/ibm-plex-mono-500.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Mono';
  font-style:normal;
  font-weight:600;
  font-display:swap;
  src:url('fonts/ibm-plex-mono-600.woff2') format('woff2');
}