omarchycn/cn/fontconfig/64-omarchycn-cjk.conf

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
  <!-- 每条 lang 规则成对出现：50-omarchy.conf 先以 assign 把 generic 名整体替换成
       Liberation Sans/Serif 与 JetBrainsMono Nerd Font（且先于本文件加载），
       所以除 generic 名外还必须测试替换后的具体家族，否则规则静默失效（Issue #4） -->

  <!-- 日文/韩文标签内容保持原生字形（仅约束 generic 请求，避免波及未标签路径） -->
  <match target="pattern">
    <test name="lang" compare="contains"><string>ja</string></test>
    <test name="family"><string>sans-serif</string></test>
    <edit name="family" mode="prepend" binding="strong"><string>Noto Sans CJK JP</string></edit>
  </match>
  <match target="pattern">
    <test name="lang" compare="contains"><string>ja</string></test>
    <test name="family"><string>Liberation Sans</string></test>
    <edit name="family" mode="prepend" binding="strong"><string>Noto Sans CJK JP</string></edit>
  </match>
  <match target="pattern">
    <test name="lang" compare="contains"><string>ko</string></test>
    <test name="family"><string>sans-serif</string></test>
    <edit name="family" mode="prepend" binding="strong"><string>Noto Sans CJK KR</string></edit>
  </match>
  <match target="pattern">
    <test name="lang" compare="contains"><string>ko</string></test>
    <test name="family"><string>Liberation Sans</string></test>
    <edit name="family" mode="prepend" binding="strong"><string>Noto Sans CJK KR</string></edit>
  </match>

  <!-- 简体中文内容强制简体字形 -->
  <match target="pattern">
    <test name="lang" compare="contains"><string>zh-cn</string></test>
    <test name="family"><string>sans-serif</string></test>
    <edit name="family" mode="prepend" binding="strong"><string>Noto Sans CJK SC</string></edit>
  </match>
  <match target="pattern">
    <test name="lang" compare="contains"><string>zh-cn</string></test>
    <test name="family"><string>Liberation Sans</string></test>
    <edit name="family" mode="prepend" binding="strong"><string>Noto Sans CJK SC</string></edit>
  </match>
  <match target="pattern">
    <test name="lang" compare="contains"><string>zh-cn</string></test>
    <test name="family"><string>serif</string></test>
    <edit name="family" mode="prepend" binding="strong"><string>Noto Serif CJK SC</string></edit>
  </match>
  <match target="pattern">
    <test name="lang" compare="contains"><string>zh-cn</string></test>
    <test name="family"><string>Liberation Serif</string></test>
    <edit name="family" mode="prepend" binding="strong"><string>Noto Serif CJK SC</string></edit>
  </match>
  <match target="pattern">
    <test name="lang" compare="contains"><string>zh-cn</string></test>
    <test name="family"><string>monospace</string></test>
    <edit name="family" mode="prepend" binding="strong"><string>Noto Sans Mono CJK SC</string></edit>
  </match>
  <match target="pattern">
    <test name="lang" compare="contains"><string>zh-cn</string></test>
    <test name="family"><string>JetBrainsMono Nerd Font</string></test>
    <edit name="family" mode="prepend" binding="strong"><string>Noto Sans Mono CJK SC</string></edit>
  </match>

  <!-- 无语言标签的任意字体请求：汉字回退到 SC 而非 JP（Chromium/Electron 常见路径） -->
  <match target="pattern">
    <edit name="family" mode="append" binding="weak"><string>Noto Sans CJK SC</string></edit>
  </match>

  <!-- generic 家族展开时 SC 优先于其他 CJK 变体 -->
  <alias>
    <family>sans-serif</family>
    <prefer>
      <family>Noto Sans</family>
      <family>Noto Sans CJK SC</family>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>
  <alias>
    <family>serif</family>
    <prefer>
      <family>Noto Serif</family>
      <family>Noto Serif CJK SC</family>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>
  <alias>
    <family>monospace</family>
    <prefer>
      <family>Noto Sans Mono CJK SC</family>
      <family>Noto Color Emoji</family>
    </prefer>
  </alias>
</fontconfig>