Our bank holds a massive portfolio of zero-risk-weight government bonds, making our CET1 ratio a very healthy 15%. However, regulators still flagged a capital breach. Which Basel constraint did we likely hit, and how would you resolve it?

我们银行持仓了海量的零风险权重国债，算出来的CET1资本充足率高达15%，看起来非常健康。但监管机构还是发了违规警告，你觉得我们触碰了巴塞尔框架下的哪条红线？该怎么解决？