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v3.23.1

Summary of significant accounting policies (Details) ¥ / shares in Units, $ / shares in Units, ¥ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 CNY (¥) ¥ / shares | Dec. 31, 2022 USD ($) | Dec. 31, 2021 CNY (¥) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2022 USD ($) $ / shares
Summary of significant accounting policies |  |  |  |  |
Accumulated deficit | ¥ 5,710,977 |  | ¥ 4,109,041 |  | $ 828,014,000
Working capital | ¥ | 318,327 |  |  |  |
Net cash used in operating activities | 405,765 | $ 58,833,000 | ¥ 872,325 | ¥ 368,046 |
Long term related party loan | ¥ | ¥ 300,000 |  |  |  |
proceeds from the disposal of an equity | $ |  | $ 115,000,000 |  |  |
Legal or contractual asset retirement obligations | $ |  |  |  |  | $ 0
Translations of amounts | (per share) | ¥ 6.8972 |  |  |  | $ 1.00

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