v3.26.1
Ordinary Shares, Series Angel Shares And Series Seed Preference Shares - Additional Information (Details)
$ / shares in Units, ¥ in Millions
 12 Months Ended
Sep. 11, 2024
USD ($)
$ / shares
shares
Aug. 15, 2023
shares
Feb. 20, 2017
USD ($)
shares
Nov. 19, 2015
USD ($)
shares
Nov. 19, 2015
CNY (¥)
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Jul. 23, 2025
shares
Dec. 31, 2024
$ / shares
shares
Sep. 13, 2024
shares
Dec. 31, 2023
shares
Jun. 30, 2023
shares
Apr. 30, 2023
$ / shares
shares
Dec. 31, 2022
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Class of Stock [Line Items]                            
Dividend declared | $           $ 0                
Series Angel Preference Shares                            
Class of Stock [Line Items]                            
Preference shares authorized                     75,000,000      
Preference shares issued                     75,000,000      
Preference shares outstanding                     75,000,000      
Shares purchased       218,749,500 218,749,500                  
Aggregate consideration       $ 1,000,000 ¥ 7.0                  
Series A Redeemable Preference Shares                            
Class of Stock [Line Items]                            
Preference shares authorized                     300,000,000      
Preference shares issued                     300,000,000      
Preference shares outstanding                     300,000,000      
Series A+ redeemable preference shares                            
Class of Stock [Line Items]                            
Preference shares authorized                     118,971,900      
Preference shares issued                     118,971,900      
Preference shares outstanding                     118,971,900      
Series B Redeemable Preference Shares                            
Class of Stock [Line Items]                            
Preference shares authorized                     602,372,700      
Preference shares issued                     602,372,700      
Preference shares outstanding                     602,372,700      
American Depositary Shares                            
Class of Stock [Line Items]                            
Shares issued             13,087,595              
American Depositary Shares | IPO                            
Class of Stock [Line Items]                            
Par value | $ / shares $ 6.2                          
Shares issued 3,333,335                          
Net proceeds | $ $ 19,100,000                          
Additional shares issued and sold to underwriter                 128,888          
Class A Ordinary Shares                            
Class of Stock [Line Items]                            
Authorized share capital, share           4,258,745,553   4,258,745,553            
Par value | $ / shares           $ 0.00001   $ 0.00001            
Common stock, shares, issued           2,160,310,915   1,636,807,084            
Shares outstanding           2,160,310,915   1,636,807,084            
Shares issued           2,160,310,915 523,503,831 1,636,807,084            
Shares outstanding           2,160,310,915   1,636,807,084            
Class A Ordinary Shares | IPO                            
Class of Stock [Line Items]                            
Shares issued 133,333,400                          
Shares sold 133,333,400                          
Conversion of shares 75,000,000                          
Class B Ordinary Shares                            
Class of Stock [Line Items]                            
Authorized share capital, share           741,254,447   741,254,447            
Par value | $ / shares           $ 0.00001   $ 0.00001            
Common stock, shares, issued           741,254,447   741,254,447            
Shares outstanding           741,254,447   741,254,447            
Shares issued           741,254,447   741,254,447            
Shares outstanding           741,254,447   741,254,447            
Common Stock                            
Class of Stock [Line Items]                            
Authorized share capital value | $                           $ 50,000
Authorized share capital, share                     3,728,605,400 5,000,000,000   500,000,000
Par value | $ / shares                       $ 0.00001   $ 0.0001
Common stock, shares, issued                     656,200,500      
Shares outstanding                     656,200,500      
Shares issued                   806,200,500     656,200,500  
Common Stock | Class A Ordinary Shares                            
Class of Stock [Line Items]                            
Shares issued           2,160,310,915   1,636,807,084            
Common Stock | Class B Ordinary Shares                            
Class of Stock [Line Items]                            
Shares issued           741,254,447   741,254,447            
Unvested Shares                            
Class of Stock [Line Items]                            
Shares granted   150,000,000                        
Preference Shares | Class A Ordinary Shares | IPO                            
Class of Stock [Line Items]                            
Preferred shares conversion ratio 1                          
Conversion of shares 1,433,372,111                          
Ordinary Shares                            
Class of Stock [Line Items]                            
Shares issued to grantees   150,000,000                        
Ordinary Shares | Class A Ordinary Shares | IPO                            
Class of Stock [Line Items]                            
Ordinary shares conversion ratio 1                          
Conversion of shares 64,946,053                          
Ordinary Shares | Class B Ordinary Shares | IPO                            
Class of Stock [Line Items]                            
Ordinary shares conversion ratio 1                          
Conversion of shares 741,254,447                          
Series Seed Preference Shares                            
Class of Stock [Line Items]                            
Preference shares authorized                     175,050,000      
Preference shares issued                     175,050,000      
Preference shares outstanding                     175,050,000      
Shares purchased     175,050,000                      
Aggregate consideration | $     $ 2,000,000                      
Series Seed Preference Shares | Class A Ordinary Shares | IPO                            
Class of Stock [Line Items]                            
Preferred shares conversion ratio 1                          
Conversion of shares 1,433,372,111                          
Founders | Common Stock                            
Class of Stock [Line Items]                            
Common stock, shares, issued                           499,999,999