Investments - Schedule of Equity Securities with Readily Determinable Fair Values (Details) |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2023
CNY (¥)
|
|
| Schedule of Equity Securities with Readily Determinable Fair Values [Abstract] | ||||
| Total net gains (losses) recognized | ¥ 51,489,277 | $ 7,362,869 | ¥ (11,163,213) | ¥ 9,966,512 |
| Less: Net realized gains on equity securities sold | 51,489,277 | 7,362,869 | ||
| Net unrealized gains (losses) recognized on equity securities held | ¥ (11,163,213) | ¥ 9,966,512 | ||