Group 1 - The medical beauty sector experienced a decline of 1.92% on October 13, with Ai Meike leading the drop [1] - The Shanghai Composite Index closed at 3889.5, down 0.19%, while the Shenzhen Component Index closed at 13231.47, down 0.93% [1] - Major stocks in the medical beauty sector showed mixed performance, with *ST Meigu rising by 5.15% to a closing price of 3.47, while Ai Meike fell by 2.32% to 175.66 [1] Group 2 - The net outflow of main funds in the medical beauty sector was 75.6993 million yuan, while retail investors saw a net inflow of 48.3038 million yuan [1] - Specific fund flows for major stocks indicated that Ai Meike had a net outflow of 51.1050 million yuan, representing a decrease of 10.15% [2] - Huaxi Biological and *ST Meigu also experienced significant net outflows of 15.8278 million yuan and 8.7665 million yuan, respectively [2]