白宫简报未释出新信息——地缘不确定性延续，交易价值有限

1. 核心事实剥离

白宫发言人Leavitt在简报会上未释放任何关于谈判进展或时间表的新信息，仅重申美国保持"参与"状态，并将海军封锁界定为"无限期军事承诺"的可能性。〔SRC: "the US remains 'engaged' in the talks and that conversations are 'ongoing'" / "Leavitt declined to put any timeline on the US naval blockade, leaving open the possibility of an open-ended military commitm