每日钉一下（什么是QDII基金呢？）

Group 1 - The core viewpoint of the article emphasizes that investing in personal pensions not only enhances retirement security but also allows individuals to enjoy tax deferral benefits [1]. Group 2 - The article discusses how to open a personal pension account and outlines five major investment options available for individuals [2]. - It promotes a limited-time free course that introduces methods for investing in personal pensions [2]. - Additional resources such as course notes and mind maps are offered to help individuals understand the course content more efficiently [3].