Investments - Investment in equity investees (Details) |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
|
| Schedule of Equity Method Investments [Line Items] | |||
| Investment in equity investees | ¥ 11,062,659 | ¥ 76,929,667 | |
| Fair value change in investment in equity investees | (65,200,488) | $ (9,323,546) | 40,628,028 |
| NIP Group Inc. | |||
| Schedule of Equity Method Investments [Line Items] | |||
| Investment in equity investees | ¥ 11,062,659 | ¥ 76,929,667 | |
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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of unrealized gain (loss) on investment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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