Organization and principal activities - Schedule of Condensed Consolidated Cash Flows Data for the VIEs (Details) ¥ in Thousands, $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2023
CNY (¥)
|
|
| Investments in and Advances to Affiliates | ||||
| Net cash provided by (used in) operating activities | ¥ (176,152) | $ (25,191) | ¥ 94,283 | ¥ (32,081) |
| Net cash provided by investing activities | 2,185,278 | 312,492 | 3,678,535 | 53,206 |
| Net cash used in financing activities | (2,498,192) | $ (357,237) | (3,104,671) | (202,294) |
| Variable Interest Entity (VIE) | ||||
| Investments in and Advances to Affiliates | ||||
| Net cash provided by (used in) operating activities | (352,269) | 24,602 | 56,821 | |
| Other investing activities | 338,817 | (22,838) | (49,263) | |
| Net cash provided by investing activities | ¥ 338,817 | ¥ (22,838) | ¥ (49,263) | |