v3.26.3
Summary of Significant Accounting Policies - Schedule of Net Revenues By Geographical Location of Customers (Details)
6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2026
CNY (¥)
Jun. 30, 2025
CNY (¥)
Segment Reporting [Line Items]      
Net revenues $ 407,931 ¥ 2,778,378 ¥ 8,283,373
PRC [Member]      
Segment Reporting [Line Items]      
Net revenues   2,454,426 5,462,221
United States [Member]      
Segment Reporting [Line Items]      
Net revenues   23,554 946,288
Hong Kong [Member]      
Segment Reporting [Line Items]      
Net revenues   1,249,900
The United Kingdom [Member]      
Segment Reporting [Line Items]      
Net revenues   168,352
Others [Member]      
Segment Reporting [Line Items]      
Net revenues   ¥ 132,046 ¥ 624,964