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Parent-Only Financial Statements - Schedule of Condensed Statements of Cash Flows (Details) - Parent [Member] | 12 Months Ended
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Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2022 CNY (¥)
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |
Net cash provided by (used in) operating activities | ¥ (281,829) | $ (39,206) | ¥ 344,012 | ¥ 3,911,561
Net cash used in investing activities | (312,142,434) | (43,423,075) | (68,918,960) | (155,900,936)
Net cash provided by financing activities | 315,620,394 | 43,906,905 | 72,802,734 | 144,043,186
Effect of exchange rate changes on cash and cash equivalents | (2,174,475) | (302,498) | (3,047,562) | 7,883,387
Net increase (decrease) in cash and cash equivalents | 1,021,656 | 142,126 | 1,180,224 | (62,802)
Cash, cash equivalents and restricted cash at beginning of the year | 1,205,993 | 167,769 | 25,769 | 88,571
Cash, cash equivalents and restricted cash at end of the year | ¥ 2,227,649 | $ 309,895 | ¥ 1,205,993 | ¥ 25,769

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- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24 + Details
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- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-24 + Details
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