v3.26.1
Short-term investments (Tables)
6 Months Ended
Jun. 30, 2026
Short-term Investments  
Schedule of Short term investments
                       
    December 31,
2025
    June 30,
2026
    June 30,
2026
 
    RMB     RMB     USD  
          (Unaudited)     (Unaudited)  
Marketable securities     1,138,090,600       867,738,320       127,404,355  
Schedule of Fair value disclosure
                               
          December 31, 2025  
    December 31,     Fair Value  
    2025     Level 1     Level 2     Level 3  
    RMB     RMB     RMB     RMB  
Marketable securities     1,138,090,600       1,138,090,600       -       -  

 

          June 30, 2026  
    June 30,     Fair Value  
    2026     Level 1     Level 2     Level 3  
    RMB     RMB     RMB     RMB  
    (Unaudited)     (Unaudited)     (Unaudited)     (Unaudited)  
Marketable securities     867,738,320       867,738,320       -       -