/* IBM Plex Sans（OFL）可变字体，仅拉丁字符与数字；中文回落系统字体。来源 Google Fonts，2026-10-16 自托管以免境内加载 fonts.googleapis.com 阻塞渲染 */
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:400 700;font-display:swap;src:url(plex-latin.woff2) format("woff2");unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}