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Accounts Receivable, Net - Schedule of Allowance for Credit Losses (Details) - CNY (¥) | 6 Months Ended | 12 Months Ended
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Jun. 30, 2025 | Dec. 31, 2024
Schedule of Allowance for Credit Losses [Abstract] |  |
Balance at the beginning of the year | ¥ 38,352,201 | ¥ 37,610,720
Provisions (reversal) of expected credit losses | (43,641) | 741,481
Balance at the end of the year | ¥ 38,308,560 | ¥ 38,352,201

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- Definition Amount of allowance for credit loss on accounts receivable, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-4 + Details
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