v3.25.2
Leases (Details) - Jun. 30, 2025
USD ($)
CNY (¥)
Leases [Abstract]    
2025 (remaining six months) $ 60,337 ¥ 431,929
2026 75,893 543,287
2027 33,984 243,281
2028
2029
Total lease payments 170,214 1,218,497
Less: Interest 4,940 35,365
Present value of lease liabilities $ 165,274 ¥ 1,183,132