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v3.24.1.u1

Net Revenues - Accounts receivable and contract balances (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2023 CNY (¥) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2021 CNY (¥)
Accounts receivable |  |  |  |
Opening Balance | ¥ 485,044 |  | ¥ 85,821 | ¥ 56,319
Increase(decrease), net | 39,774 |  | 399,223 | 29,502
Ending Balance | 524,818 | $ 73,919 | 485,044 | 85,821
Contract assets |  |  |  |
Opening Balance | 12,600 |  | 146,537 | 38,337
Increase(decrease), net | 7,088 |  | (133,937) | 108,200
Ending Balance | 19,688 | 2,773 | 12,600 | 146,537
Contract liabilities |  |  |  |
Opening Balance | 40,378 |  | 122,603 | 9,357
Increase(decrease), net | 39,547 |  | (82,225) | 113,246
Ending Balance | 79,925 | $ 11,257 | 40,378 | 122,603
Contract liabilities, revenue recognized | ¥ 37,111 |  | ¥ 109,120 | ¥ 8,048

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