港股午盘：香港恒生指数涨1.78%，恒生科技指数涨2.21%

Group 1 - The Hong Kong stock market showed positive performance with the Hang Seng Index rising by 1.78% [1] - The Hang Seng Tech Index increased by 2.21%, indicating a strong performance in the technology sector [1] - Companies such as Guotai Junan International and China National Nuclear Corporation saw significant gains, with Guotai Junan International rising over 12% and China National Nuclear Corporation increasing over 8% [1]