Public Wi‑Fi precautions
2026-04-15 · 预计阅读： ~3 min
Lightweight checklist you can cite when teaching friends about hotspot risks — paired with sane VPN usage.
知识与博客
当前以仓库内 Markdown 草稿为主；未来将切换 Sanity CMS（参见设计 §2）。
What is a VPN?
2026-04-01 · 预计阅读： ~3 min
Understand how a VPN shields traffic between your phone and trusted servers — without exaggerated claims.