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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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Number of quantity of crypto currency.

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 60
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476168/350-60-50-3

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
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-URI https://asc.fasb.org/1943274/2147476168/350-60-50-3

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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-URI https://asc.fasb.org/1943274/2147476168/350-60-50-3

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 50
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-URI https://asc.fasb.org/1943274/2147476168/350-60-50-3

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
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-Section 50
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-URI https://asc.fasb.org/1943274/2147476168/350-60-50-3

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 60
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476167/350-60-45-1

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- Definition

Cost of crypto asset. Excludes crypto asset held for platform user.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
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-Section 50
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Fair value of crypto asset classified as current. Excludes crypto asset held for platform user.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
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-Section 50
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