v3.26.1
Summary of Significant Accounting Policies - Schedule of Cash and Cash Equivalents (Details)
¥ in Thousands, $ in Thousands
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Schedule of Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents ¥ 53,445 $ 7,643 ¥ 1,504 ¥ 5,250
PRC [Member] | RMB Denominated Bank Deposits        
Schedule of Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents 7    
PRC [Member] | US Dollar Denominated Bank Deposits        
Schedule of Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents 136   364  
HK SAR [Member] | RMB Denominated Bank Deposits        
Schedule of Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents 17   17  
HK SAR [Member] | US Dollar Denominated Bank Deposits        
Schedule of Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents 57   859  
HK SAR [Member] | HK Dollar Denominated Bank Deposits        
Schedule of Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents 3   5  
U.S. [Member] | US Dollar Denominated Bank Deposits        
Schedule of Cash and Cash Equivalents [Line Items]        
Cash and cash equivalents ¥ 53,225   ¥ 259