v3.26.3
Short-Term Investments - Schedule of Fair Value Disclosure (Details)
Jun. 30, 2026
USD ($)
Jun. 30, 2026
CNY (¥)
Dec. 31, 2025
CNY (¥)
Schedule of Fair Value Disclosure [Line Items]      
Marketable securities $ 261,824,029 ¥ 1,783,257,278 ¥ 2,062,818,597
Level 1 [Member]      
Schedule of Fair Value Disclosure [Line Items]      
Marketable securities   1,783,257,278 2,062,818,597
Level 2 [Member]      
Schedule of Fair Value Disclosure [Line Items]      
Marketable securities  
Level 3 [Member]      
Schedule of Fair Value Disclosure [Line Items]      
Marketable securities