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Loss per Share (Tables) | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Schedule of calculation of net loss per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the year ended December 31,
​ |  | 2021 |  | 2022 |  | 2023
​ | ​ | RMB | ​ | RMB | ​ | RMB
Numerator |  |  |  |  |  |
Net loss |  | (244,827) |  | (300,765) |  | (475,968)
Deemed dividend |  | (2,211,330) |  | (446,419) |  | —
Net loss attributable to ordinary shareholders |  | (2,456,157) |  | (747,184) |  | (475,968)
Denominator |  |  |  |  |  | ​
Weighted average number of ordinary shares outstanding-basic and diluted |  | 104,987,478 |  | 115,534,593 |  | 124,783,013
Basic and diluted net loss per share attributable to ordinary shareholders |  | (23.39) |  | (6.47) |  | (3.81)
Schedule of share options were excluded from the calculation of diluted net loss per ordinary share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the year ended December 31,
​ |  | 2021 |  | 2022 |  | 2023
​ | ​ | Number | ​ | Number | ​ | Number
Shares issuable upon exercise of share options |  | 9,173,623 |  | 9,608,634 |  | 10,191,721
Shares issuable upon exercise of restricted share units | ​ | — | ​ | — | ​ | 153,321
Shares issuable upon exercise of tandem award | ​ | — | ​ | 60,000 | ​ | 60,000
Total |  | 9,173,623 |  | 9,668,634 |  | 10,405,042
​

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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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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