港股航空股大幅回调，中国南方航空股份(01055.HK)跌超5%，中国国航(00753.HK)跌超4.5%，中国东方航空股份(00670.HK)跌超3.5%，国泰航空(00293.HK)跌超2%。

Group 1 - The Hong Kong aviation stocks experienced a significant decline, with China Southern Airlines (01055.HK) dropping over 5% [1] - Air China (00753.HK) fell by more than 4.5% [1] - China Eastern Airlines (00670.HK) decreased by over 3.5% [1] - Cathay Pacific Airways (00293.HK) saw a decline of more than 2% [1]