@charset "UTF-8";
/* ============================================================
   九百步 · 平台全景 — 自托管字体（@fontsource latin 子集）
   替代 Google Fonts 外链：国内可达、离线可用；中文走系统栈
   （Source Serif 4 / DM Sans / IBM Plex Mono 均为 OFL 许可）
   ============================================================ */
@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:300;font-display:swap;src:url("fonts/source-serif-4-latin-300-normal.woff2") format("woff2")}
@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:600;font-display:swap;src:url("fonts/source-serif-4-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:700;font-display:swap;src:url("fonts/source-serif-4-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:600;font-display:swap;src:url("fonts/source-serif-4-latin-600-italic.woff2") format("woff2")}
@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:700;font-display:swap;src:url("fonts/source-serif-4-latin-700-italic.woff2") format("woff2")}
@font-face{font-family:"DM Sans";font-style:normal;font-weight:400;font-display:swap;src:url("fonts/dm-sans-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"DM Sans";font-style:normal;font-weight:500;font-display:swap;src:url("fonts/dm-sans-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"DM Sans";font-style:normal;font-weight:600;font-display:swap;src:url("fonts/dm-sans-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url("fonts/ibm-plex-mono-latin-400-normal.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-latin-500-normal.woff2") format("woff2")}