THEO'S NOTES
Custom Pages
Legacy URL kept for standalone HTML pages now organized under Labs.
Custom Pages is a compatibility page. New standalone HTML pages are conceptually part of Labs and belong under static/labs/.
The original demo remains under static/custom/demo/, is copied into public/custom/demo/ by Hugo, and continues to be served directly by Caddy.
Custom Pages 是保留的兼容页面。新的独立 HTML 页面统一归入 Labs，存放在 static/labs/。
第一个自定义页面仍存放在 static/custom/demo/，旧地址继续有效。