v3.26.3
Share-Based Compensation - ​Schedule of Stock Options Activities (Details)
¥ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2026
$ / shares
Jun. 30, 2026
CNY (¥)
shares
Jun. 30, 2025
CNY (¥)
Dec. 31, 2025
CNY (¥)
shares
Jun. 30, 2026
CNY (¥)
shares
Schedule of Stock Options Activities [Abstract]          
Shares underlying Options, Outstanding beginning balance | shares        
Weighted Average Exercise Price, Outstanding beginning balance | $ / shares        
Remaining Contractual Term (Years), Outstanding beginning balance   11 months 1 day    
Grant- Date Fair Value, Outstanding beginning balance | ¥        
Number of options granted | shares   22,376,760,000      
Weighted Average Exercise Price, Granted | $ / shares        
Remaining Contractual Term (Years), Granted   1 year      
Grant- Date Fair Value, Granted | ¥   ¥ 291,944    
Shares underlying Options, Exercised | shares   (59,577,600)      
Weighted Average Exercise Price, Exercised | $ / shares        
Remaining Contractual Term (Years), Exercised        
Grant- Date Fair Value, Exercised | ¥   ¥ (743)      
Shares underlying Options, Outstanding ending balance | shares   22,317,182,400    
Weighted Average Exercise Price, Outstanding ending balance | $ / shares        
Remaining Contractual Term (Years), Outstanding ending balance   11 months 1 day    
Grant- Date Fair Value, Outstanding ending balance | ¥   ¥ 291,201    
Shares underlying Options, Exercisable | shares         22,317,182,400
Weighted Average Exercise Price, Exercisable | $ / shares        
Remaining Contractual Term (Years), Exercisable   11 months 1 day      
Grant- Date Fair Value, Exercisable | ¥         ¥ 291,167