v3.26.3
Convertible Notes Payable - Schedule of Convertible Notes Payable (Details)
Jun. 30, 2026
USD ($)
Jun. 30, 2026
CNY (¥)
Dec. 31, 2025
CNY (¥)
Convertible Notes Payable [Line Items]      
Total convertible notes payable $ 27,148,962 ¥ 184,908,865 ¥ 184,735,532
Investors [Member]      
Convertible Notes Payable [Line Items]      
Total convertible notes payable $ 27,148,962 ¥ 184,908,865 ¥ 184,735,532