v3.26.1
Share-based Compensation - Share-based compensation expense (Detail)
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Share-based compensation        
Share-based compensation expense ¥ 0 $ 0 ¥ 2,257,795 ¥ 4,935,782
Sales and marketing        
Share-based compensation        
Share-based compensation expense     299,806 265,862
General and administrative        
Share-based compensation        
Share-based compensation expense     1,754,168 4,649,664
Research and development        
Share-based compensation        
Share-based compensation expense     ¥ 203,821 ¥ 20,256