v3.26.3
Summary of Significant Accounting Policies (Details)
¥ in Thousands, $ in Thousands
6 Months Ended
Jun. 30, 2026
CNY (¥)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
CNY (¥)
Jun. 30, 2026
USD ($)
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Summary of Significant Accounting Policies [Line Items]              
Accumulated deficit ¥ 4,737,342     $ 698,198 ¥ 4,703,305    
Net loss 34,484 $ 5,081 ¥ 39,182        
Operating activities (36,674) (5,405) (21,235)        
Foreign currency transaction gain (Loss), before tax ¥ 7,205 $ 1,062 524        
Calculated at the rate 6.7851     6.7851      
Bank balance ¥ 1,244       659    
Restricted bank balance 2,651       2,672    
Accounts receivable ¥ 631,528   632,237   ¥ 642,786   ¥ 640,394
Percentage of accounts receivable 6.00% 6.00%          
Accounts receivable ¥ 10,776   946        
Inventory net (in Dollars) | $          
Impairment loss 1,461 $ 215 10,108        
Impairment for right-of-use lease assets 0   0        
Impairment loss of equity method 20,080 $ 2,959        
Impairment Loss For Long term Equity Investment          
Appropriation general reserve fund minimum 10.00% 10.00%          
Appropriation general reserve fund maximum 50.00% 50.00%          
Surplus fund minimum 10.00% 10.00%          
Surplus fund maximum 50.00% 50.00%          
Appropriation general reserve          
Appropriation discretionary funds            
Comprehensive loss ¥ 3,752   ¥ 4,605        
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Chief Executive Officer [Member] Chief Executive Officer [Member]          
Operating segment 1 1          
US [Member]              
Summary of Significant Accounting Policies [Line Items]              
Calculated at the rate 1     1      
Continuing Operations [Member]              
Summary of Significant Accounting Policies [Line Items]              
Operating activities ¥ 36,674