v3.26.1
Shareholder Loans, at Amortized Cost (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2025
CNY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2023
CNY (¥)
shares
Feb. 28, 2018
USD ($)
shares
Feb. 28, 2018
CNY (¥)
shares
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2016
CNY (¥)
shares
Shareholder Loans, at Amortized Cost [Line Items]                            
Investor share value                 $ 20,000 ¥ 122,534 $ 5,500 ¥ 35,000 $ 5,000 ¥ 30,634
Repayment of investor               ¥ 1,000   613        
Other loans payable         $ 9,495 ¥ 66,404 $ 8,879 62,088 $ 5,885 41,156        
Borrowed interest free loans       ¥ 1,153   28,923   6,874   6,874        
Repayment of borrowed interest loans ¥ 8,702 ¥ 4,580 $ 150 ¥ 1,053                    
Loan agreement [Member]                            
Shareholder Loans, at Amortized Cost [Line Items]                            
Principal of loan agreement                       ¥ 35,000   ¥ 30,634
Repayment of investor               500   2,000        
Founder [Member]                            
Shareholder Loans, at Amortized Cost [Line Items]                            
Borrowed interest free loans               ¥ 28,322   ¥ 14,203        
Series B Redeemable Convertible Preferred Shares [Member]                            
Shareholder Loans, at Amortized Cost [Line Items]                            
Preferred stock, convertible, shares issued | shares                 280,352,854 280,352,854        
Series C Redeemable Convertible Preferred Shares [Member]                            
Shareholder Loans, at Amortized Cost [Line Items]                            
Preferred stock, convertible, shares issued | shares                         124,523,393 124,523,393
Series C-1 Redeemable Convertible Preferred Shares [Member]                            
Shareholder Loans, at Amortized Cost [Line Items]                            
Preferred stock, convertible, shares issued | shares                     154,278,293 154,278,293    
Series C ODI Convertible Loan [Member]                            
Shareholder Loans, at Amortized Cost [Line Items]                            
Convertible debt, current           42,055                
Other loans payable           ¥ 27,027                
Interest shareholders loan agreement ¥ 15,028