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Cryptocurrencies - Schedule of Cryptocurrencies (Details) | Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥)
--- | --- | --- | ---
Schedule of Cryptocurrencies [Line Items] |  |  |
Cost Basis | ¥ 256,709,293 |  |
Fair Value | ¥ 242,889,085 | $ 33,789,033 |
Bitcoin [Member] |  |  |
Schedule of Cryptocurrencies [Line Items] |  |  |
Quantity | 361 | 361 |
Cost Basis | ¥ 256,709,226 |  |
Fair Value | ¥ 242,889,018 |  |
USDT [Member] |  |  |
Schedule of Cryptocurrencies [Line Items] |  |  |
Quantity | 9 | 9 |
Cost Basis | ¥ 67 |  |
Fair Value | ¥ 67 |  |

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