v3.26.3
Short-Term Investments - Schedule of Short-Term Investments (Details)
Jun. 30, 2026
USD ($)
Jun. 30, 2026
CNY (¥)
Dec. 31, 2025
CNY (¥)
Schedule of Short-Term Investments [Line Items]      
Short-term investments $ 545,972 ¥ 3,718,561 ¥ 26,214,992
Investment in warrants [Member]      
Schedule of Short-Term Investments [Line Items]      
Short-term investments   131,498 3,875,947
Investment in equity securities with readily determinable fair value [Member]      
Schedule of Short-Term Investments [Line Items]      
Short-term investments   ¥ 3,587,063 ¥ 22,339,045