v3.26.1
Short-term investments (Details Narrative)
Dec. 31, 2025
USD ($)
Dec. 31, 2025
CNY (¥)
Dec. 31, 2024
CNY (¥)
Cash and Cash Equivalents [Abstract]      
Short term investments $ 161,918,194 ¥ 1,138,090,600 ¥ 149,583,000
Investment Owned, Cost 133,161,628 935,966,450  
Investment Owned, Fair Value $ 18,815,722 ¥ 132,251,950