/* ==========================================================================
   Site-wide Chinese fonts (2026-10-14, 沟通11 · L2)
   思源黑体 = Noto Sans SC  → Chinese for every sans stack  ("Dunben Sans SC")
   思源宋体 = Noto Serif SC → Chinese for every serif stack ("Dunben Serif SC")
   Self-hosted subsets (CJK code points only, see unicode-range), built by
   tool/i18n/build-cjk-fonts.py. Each stack lists these right after its Latin
   family, so Latin text never touches them and a file is only downloaded
   when a page actually renders Chinese in that weight.

   Weight ranges mirror what the system fonts did before (PingFang / Songti):
   300 headings stay Light; sans 550+ (650 eyebrows, 700 subheads/labels)
   is SemiBold, as PingFang tops out at Semibold — 思源黑体 Bold read heavier.
   Every face covers its range natively, so the browser never fakes bold.
   ========================================================================== */
@font-face{font-family:"Dunben Sans SC";src:url("fonts/cjk/NotoSansSC-300.woff2?v=20261019-cases123") format("woff2");font-weight:1 349;font-style:normal;font-display:swap;unicode-range:U+3000-303F,U+3400-4DBF,U+4E00-9FFF,U+F900-FAFF,U+FF00-FFEF}
@font-face{font-family:"Dunben Sans SC";src:url("fonts/cjk/NotoSansSC-400.woff2?v=20261019-cases123") format("woff2");font-weight:350 449;font-style:normal;font-display:swap;unicode-range:U+3000-303F,U+3400-4DBF,U+4E00-9FFF,U+F900-FAFF,U+FF00-FFEF}
@font-face{font-family:"Dunben Sans SC";src:url("fonts/cjk/NotoSansSC-500.woff2?v=20261019-cases123") format("woff2");font-weight:450 549;font-style:normal;font-display:swap;unicode-range:U+3000-303F,U+3400-4DBF,U+4E00-9FFF,U+F900-FAFF,U+FF00-FFEF}
@font-face{font-family:"Dunben Sans SC";src:url("fonts/cjk/NotoSansSC-600.woff2?v=20261019-cases123") format("woff2");font-weight:550 1000;font-style:normal;font-display:swap;unicode-range:U+3000-303F,U+3400-4DBF,U+4E00-9FFF,U+F900-FAFF,U+FF00-FFEF}
@font-face{font-family:"Dunben Serif SC";src:url("fonts/cjk/NotoSerifSC-400.woff2?v=20261019-cases123") format("woff2");font-weight:1 549;font-style:normal;font-display:swap;unicode-range:U+3000-303F,U+3400-4DBF,U+4E00-9FFF,U+F900-FAFF,U+FF00-FFEF}
@font-face{font-family:"Dunben Serif SC";src:url("fonts/cjk/NotoSerifSC-700.woff2?v=20261019-cases123") format("woff2");font-weight:550 1000;font-style:normal;font-display:swap;unicode-range:U+3000-303F,U+3400-4DBF,U+4E00-9FFF,U+F900-FAFF,U+FF00-FFEF}