Asked at a recent shopping event whether the "50 minus 30" offer was valid, Ms Li said: "It does exist and it's a good deal. But I'm more concerned about the quality and service of the product itself." She also stressed her focus on product quality and service.

Li Ruotong is a very influential star, and her fans love her work very much. Therefore, she pays more attention to the quality and service of the product when choosing goods, rather than just the price. She believes that good quality and good service are the most important things.

In addition, Li Ruotong also mentioned an important issue - how to balance personal interests and social responsibility. She said that as a public figure, she needs to pursue personal interests while also considering social responsibility and strive to contribute to society.

Overall, Li Ruotong's answer shows her emphasis on product quality and service, as well as her sense of social responsibility as a public figure. Her answer shows both her business acumen and her ethics.