v3.25.1
Bank Loans (Details)
Mar. 31, 2024
CNY (¥)
Nov. 30, 2023
CNY (¥)
Feb. 28, 2023
CNY (¥)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
CNY (¥)
Bank Loans [Line Items]            
Weighted average interest rates       3.85% 3.85% 3.85%
Outstanding amount       ¥ 116,800,000
Long-term time deposits ¥ 222,230,000          
Secured Loan Agreement with Shanghai Pudong Development Bank [Member]            
Bank Loans [Line Items]            
Principal amount of debt ¥ 200,000,000 ¥ 57,000,000 ¥ 117,000,000      
Debt instrument, interest rate 3.33% 3.50% 3.85%      
Maturity date Mar. 25, 2027 Nov. 14, 2026 Mar. 24, 2024      
Outstanding amount           116,800,000
Long-term time deposits           ¥ 130,000,000
Long-term time deposits   ¥ 63,340,000