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Summary of Significant Accounting Policies (Details)
¥ in Thousands, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 01, 2025
CNY (¥)
Jun. 30, 2025
CNY (¥)
Jun. 30, 2024
CNY (¥)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Sep. 30, 2025
Jun. 30, 2025
USD ($)
Summary of Significant Accounting Policies [Line Items]              
Allowance for credit losses   ¥ 2,585 ¥ 1,396 ¥ 1,996 ¥ 931    
Initial payment ¥ 2,500 2,500          
Contract liabilities   1,474   940     $ 206
Revenue recognized       467 ¥ 3,734    
Unrecognized tax benefits          
Uncertain tax positions for interest and penalties          
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description   Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker(“CODM”), or decision making group, in deciding how to allocate resources and in assessing performance.          
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]   chief operating decision          
Number of reportable segment   1          
Channel One [Member]              
Summary of Significant Accounting Policies [Line Items]              
Revenues generated gross   ¥ 12,023 86,710        
Channel Two [Member]              
Summary of Significant Accounting Policies [Line Items]              
Revenues generated gross   344,870 215,666        
Sales of Products [Member]              
Summary of Significant Accounting Policies [Line Items]              
Revenues generated gross   123        
Revenues generated net   56,640 ¥ 145,251        
Mimus Technology [Member]              
Summary of Significant Accounting Policies [Line Items]              
Total consideration ¥ 5,000            
Initial payment   ¥ 2,500          
Mimus Technology (Hangzhou) Co., Ltd [Member]              
Summary of Significant Accounting Policies [Line Items]              
Percentage of equity interest 2.50%            
US [Member]              
Summary of Significant Accounting Policies [Line Items]              
Translated rate   1         1
RMB [Member]              
Summary of Significant Accounting Policies [Line Items]              
Translated rate   7.1636         7.1636
Forecast [Member] | Mimus Technology (Hangzhou) Co., Ltd [Member]              
Summary of Significant Accounting Policies [Line Items]              
Percentage of equity interest           2.50%