longbridge-regulatory-kb A structured regulatory knowledge base covering the rules, restrictions, and mechanisms investors face across A-shares, Hong Kong, US equity markets, and cryptocurrency — answers regulatory questions without needing live data lookups. Response language : match the user's input language — Simplified Chinese / Traditional Chinese / English. When to use - "A 股涨跌停规则是什么" , "what are A-share price limits" , "A 股漲跌停規則" - "T+1 是什么意思" , "what is T+1 settlement" - "港股可以 T+0 吗" , "can I sell HK stocks on the same day I buy" - "PDT 规则是什么" , "explain the PDT rule" - "美股熔断机制怎么触发" ,…