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Prepayments - Schedule of Prepayments (Details)		Jun. 30, 2025 CNY (¥)	Jun. 30, 2025 USD ($)	Dec. 31, 2024 CNY (¥)
Short-term prepayments
Advance to suppliers for services and inventories	[1]	¥ 2,411,067		¥ 400,083
Long-term prepayments
Prepayment for educational content		¥ 20,275,235	$ 2,830,314	¥ 25,471,027
[1] Short-term prepayments represent advance to suppliers for purchasing services or inventories.

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- Definition

Sum of the carrying amounts as of the balance sheet date of amounts paid in advance for expenses which will be charged against earnings in periods after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
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- Definition

Amount of consideration paid in advance for supplies that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
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