开评：三大指数小幅低开 AI手机概念开盘活跃

Market Overview - The three major indices opened slightly lower, with the Shanghai Composite Index down by 0.14%, the Shenzhen Component Index down by 0.13%, and the ChiNext Index down by 0.04% [1] Sector Performance - Active sectors at the market open included automotive services, consumer electronics, coal, insurance, and AI mobile concepts [1] - Sectors that opened lower included precious metals, commercial retail, non-ferrous metals, photovoltaic equipment, and lithography machine concepts [1]