Short-term investments (Details Narrative) |
6 Months Ended | |||
|---|---|---|---|---|
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2026
CNY (¥)
|
Jun. 30, 2026
CNY (¥)
|
Dec. 31, 2025
CNY (¥)
|
|
| Short-term Investments | ||||
| Short term investments | $ 127,404,355 | ¥ 867,738,320 | ¥ 1,138,090,600 | |
| Invested in marketable securities | 3,862,934 | ¥ 26,310,055 | ||
| Realized investment loss | $ 30,125,338 | ¥ 205,180,664 | ||