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Loss Per Share (Tables) | 12 Months Ended
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Dec. 31, 2024
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | Basic and diluted loss per share for the years ended December 31, 2022, 2023 and 2024 are calculated as follows:
|  | For the years ended December 31, |
|  | 2022 |  |  | 2023 |  |  | 2024 |
|  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |  |  | Class A |  |  | Class B |
|  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | US$ |  |  | RMB |  |  | US$ |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to ordinary shareholders |  |  | (809,298 | ) |  |  | (161,935 | ) |  |  | (543,089 | ) |  |  | (110,600 | ) |  |  | (288,286 | ) |  |  | (39,496 | ) |  |  | (58,340 | ) |  |  | (7,993 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average number of ordinary shares outstanding |  |  | 87,005,610 |  |  |  | 17,324,848 |  |  |  | 85,188,137 |  |  |  | 17,324,848 |  |  |  | 85,610,197 |  |  |  | 85,610,197 |  |  |  | 17,324,848 |  |  |  | 17,324,848 |
Effect of unvested restricted shares |  |  | (421,510 | ) |  |  | — |  |  |  | (116,446 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Weighted-average number of ordinary shares outstanding – basic and diluted |  |  | 86,584,100 |  |  |  | 17,324,848 |  |  |  | 85,071,691 |  |  |  | 17,324,848 |  |  |  | 85,610,197 |  |  |  | 85,610,197 |  |  |  | 17,324,848 |  |  |  | 17,324,848 |
Loss per share - basic and diluted |  |  | (9.35 | ) |  |  | (9.35 | ) |  |  | (6.38 | ) |  |  | (6.38 | ) |  |  | (3.37 | ) |  |  | (0.46 | ) |  |  | (3.37 | ) |  |  | (0.46 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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