A股主要指数午后跌幅扩大，深证成指跌超1%，创业板指现跌1.3%，沪指跌0.7%

Core Viewpoint - The A-share market experienced a significant decline in major indices, with the Shenzhen Component Index dropping over 1% and the ChiNext Index falling by 1.3% [1] Group 1: Index Performance - The ChiNext Index decreased by 1.36%, closing at 3029.51, down by 41.64 points [2] - The Shenzhen Component Index fell by 1.01%, ending at 12924.91, a decrease of 131.79 points [2] - The Shanghai Composite Index declined by 0.70%, closing at 3870.52, down by 27.19 points [2] Group 2: Other Indices - The CSI 2000 Index dropped by 1.32%, closing at 3057.21, down by 41.03 points [2] - The STAR 100 Index fell by 1.31%, ending at 1336.16, a decrease of 17.73 points [2] - The CSI 1000 Index decreased by 1.21%, closing at 7224.43, down by 88.74 points [2]