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Related Party Balances and Transactions - Summary of Related Party Balances and Transactions (Parenthetical) (Details) - Related Party [Member] ¥ in Thousands, $ in Thousands | Dec. 31, 2023 CNY (¥) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 CNY (¥)
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Related Party Transaction [Line Items] |  |  |
Amount due from related parties | ¥ 65 | $ 9 | ¥ 358
Tencent group |  |  |
Related Party Transaction [Line Items] |  |  |
Amount due from related parties | 65 |  | 358
Prepaid expenses and other current assets | Tencent group |  |  |
Related Party Transaction [Line Items] |  |  |
Amount due from related parties | ¥ 10,059 |  | ¥ 89,014

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