glyphs 404 leaves every label blank

• `GET /fonts/Microsoft%20YaHei%20Regular/0-255.pbf` returns `404 Not Found`, and the same for `256-511.pbf`
• The console reports `Error: Failed to load glyphs: 404` without stopping the map
• `text-field` and the source names are correct, yet `queryRenderedFeatures` returns no labels

1. Filter the network panel by `pbf` and list which ranges return 404
2. Open one glyph URL directly to confirm the file is absent
3. Compare the `glyphs` template's font stack with the server directory name character by character
4. Check whether the font directory contains CJK ranges such as `19968-20223`
5. Check that every name in `text-font` exists under `fonts/`

Generate glyph PBFs that include the CJK ranges, point `glyphs` at `.../fonts/{fontstack}/{range}.pbf`, and set `text-font: ['Noto Sans SC Regular']`; on MapLibre also set `localIdeographFontFamily: "'Microsoft YaHei', 'PingFang SC', sans-serif"`.

GET /fonts/Microsoft%20YaHei%20Regular/0-255.pbf   404 Not Found
GET /fonts/Microsoft%20YaHei%20Regular/256-511.pbf  404 Not Found

"glyphs": "https://example.com/fonts/{fontstack}/{range}.pbf",
"layers": [{
  "id": "label",
  "type": "symbol",
  "layout": {
    "text-field": ["get", "name"],
    "text-font": ["Microsoft YaHei Regular"]   // 必须与目录名一致
  }
}]

• Copying only `0-255.pbf` from a Latin font set and expecting Chinese labels to appear
• Renaming the font folder without updating `text-font`, which keeps requesting a path that does not exist