According to the inquiry, I love card network display. The specific operation steps are as follows:

1. Open the WeChat app, log in to your personal account, and then click the "Add" icon in the upper right corner of the homepage.

2. Click "Add Friends" in the options that appear, and then select "WeChat Official Account".

3. Enter "southern fund" in the search box, and then follow the official account of WeChat, southern fund.

4. Enter the official account of WeChat, southern fund, and enter and send the words "Query Binding" in the input box below.