v3.26.1
Accounts Receivables- Movements of allowance for accounts receivables - (Details)
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Accounts Receivables      
Balance at the beginning of the year ¥ 274,956 $ 39,318 ¥ 205,489
Additions/(reversal) (274,720) (39,284) 69,467
Balance at the end of the year ¥ 236 $ 34 ¥ 274,956