v3.25.2
Property and equipment, net (Details Narrative)
6 Months Ended 12 Months Ended
Jun. 30, 2025
USD ($)
Jun. 30, 2025
CNY (¥)
Dec. 31, 2024
CNY (¥)
Property, Plant and Equipment [Abstract]      
Depreciation expense $ 23,014 ¥ 164,749 ¥ 165,362