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PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION - Condensed statements of cash flows (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 CNY (¥) | Dec. 31, 2025 USD ($) | Dec. 31, 2024 CNY (¥) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2025 USD ($)
PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION |  |  |  |  |
Net cash (used in) generated from operating activities | ¥ (201,824) | $ (28,861) | ¥ (397,749) | ¥ (276,471) |
Net cash (used in) generated from investing activities | 53,965 | 7,718 | (593,444) | (47,681) |
Net cash (used in) generated from financing activities | 197,232 | 28,204 | 1,146,031 | 257,653 |
Exchange rate effect on cash | 12,353 | 1,766 | (8,275) | (2,425) |
Net (decrease) increase in cash | 61,726 | 8,827 | 146,563 | (68,924) |
Cash and cash equivalents and restricted cash at beginning of the year | 236,982 | 33,888 | 90,419 | 159,343 |
Cash and cash equivalents and restricted cash at end of the year | 298,708 | 42,715 | 236,982 | 90,419 |
Reconciliation of cash and cash equivalents and restricted cash to the consolidated balance sheets: |  |  |  |  |
Cash and cash equivalents | 297,787 |  | 216,224 | 58,139 | $ 42,583
Restricted cash, current portion | 921 |  | 20,758 | 32,280 | 132
Total cash and cash equivalents and restricted cash | 298,708 |  | 236,982 | 90,419 | 42,715
Parent Company |  |  |  |  |
PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION |  |  |  |  |
Net cash (used in) generated from operating activities | (2,304) | (329) | 641 | (1,258) |
Net cash (used in) generated from investing activities | 56,186 | 8,034 | 19,039 | 15,655 |
Net cash (used in) generated from financing activities | (53,847) | (7,700) | (37,226) | 1,590 |
Exchange rate effect on cash | (17) | (2) | 489 | (31) |
Net (decrease) increase in cash | 18 | 3 | (17,057) | 15,956 |
Cash and cash equivalents and restricted cash at beginning of the year | 409 | 58 | 17,466 | 1,510 |
Cash and cash equivalents and restricted cash at end of the year | 427 | $ 61 | 409 | 17,466 |
Reconciliation of cash and cash equivalents and restricted cash to the consolidated balance sheets: |  |  |  |  |
Cash and cash equivalents | 336 |  | 409 | 17,466 | 48
Restricted cash, current portion | 91 |  |  |  | 13
Total cash and cash equivalents and restricted cash | ¥ 427 |  | ¥ 409 | ¥ 17,466 | $ 61

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