v3.26.1
Long-Term Borrowing (Details)
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2026
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2022
CNY (¥)
Long-Term Borrowing [Line Items]              
Maturing year 1 year         1 year  
Loan amount ¥ 4,610,000   ¥ 4,000,000     $ 655,873 ¥ 5,000,000
Interest rate of long term debt     3.00%       4.15%
Remaining principal balance 3,920,000            
Outstanding 4,000,000 $ 569,087          
Interest expenses 43,625 $ 6,207 ¥ 174,923 ¥ 192,755      
Long Term Loan [Member]              
Long-Term Borrowing [Line Items]              
Debt repaid 40,000            
Long Term Loan [Member] | Forecast [Member]              
Long-Term Borrowing [Line Items]              
Debt repaid         ¥ 40,000    
Re-Borrow Loan [Member]              
Long-Term Borrowing [Line Items]              
Debt repaid ¥ 40,000