/* 只给 .icon-1 单独加载字体，绝不影响任何其他图标 */
@font-face {
  font-family: 'my-luogu-icon';
  src:  url('fonts/icomoon.eot?37uyuq');
  src:  url('fonts/icomoon.eot?37uyuq#iefix') format('embedded-opentype'),
    url('fonts/icomoon.ttf?37uyuq') format('truetype'),
    url('fonts/icomoon.woff?37uyuq') format('woff'),
    url('fonts/icomoon.svg?37uyuq#icomoon') format('svg');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}

/* 👇 只作用于你自己的图标，完全隔离，不碰任何系统图标 */
.icon-1 {
  /* 关键：用独立字体名，绝对不冲突 */
  font-family: 'my-luogu-icon' !important;
  font-style: normal;
  font-weight: normal;
  font-variant: normal;
  text-transform: none;
  line-height: 1;
  vertical-align: -0.05em;
  font-size: 1.5em !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: inline-block;
}
.icon-1::before {
  content: "\e900";
}