/* ============================================================
   自测系统 —— 本地字体（woff2 已下载到 fonts/，离线加载，无第三方请求）
   覆盖：DM Sans / Space Grotesk / JetBrains Mono
   ============================================================ */

/* ── DM Sans（正文） ── */
@font-face { font-family:'DM Sans'; font-style:normal; font-weight:400; font-display:swap; src:url('dm_sans-400-normal.woff2') format('woff2'); }
@font-face { font-family:'DM Sans'; font-style:normal; font-weight:500; font-display:swap; src:url('dm_sans-500-normal.woff2') format('woff2'); }
@font-face { font-family:'DM Sans'; font-style:normal; font-weight:600; font-display:swap; src:url('dm_sans-600-normal.woff2') format('woff2'); }
@font-face { font-family:'DM Sans'; font-style:normal; font-weight:700; font-display:swap; src:url('dm_sans-700-normal.woff2') format('woff2'); }

/* ── Space Grotesk（标题） ── */
@font-face { font-family:'Space Grotesk'; font-style:normal; font-weight:400; font-display:swap; src:url('space_grotesk-400-normal.woff2') format('woff2'); }
@font-face { font-family:'Space Grotesk'; font-style:normal; font-weight:500; font-display:swap; src:url('space_grotesk-500-normal.woff2') format('woff2'); }
@font-face { font-family:'Space Grotesk'; font-style:normal; font-weight:600; font-display:swap; src:url('space_grotesk-600-normal.woff2') format('woff2'); }
@font-face { font-family:'Space Grotesk'; font-style:normal; font-weight:700; font-display:swap; src:url('space_grotesk-700-normal.woff2') format('woff2'); }

/* ── JetBrains Mono（数据/日志） ── */
@font-face { font-family:'JetBrains Mono'; font-style:normal; font-weight:400; font-display:swap; src:url('jetbrains_mono-400-normal.woff2') format('woff2'); }
@font-face { font-family:'JetBrains Mono'; font-style:normal; font-weight:500; font-display:swap; src:url('jetbrains_mono-500-normal.woff2') format('woff2'); }