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v3.26.1

TAXATION - Reconciliation between statutory rate and the effective tax rate (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2025 CNY (¥) | Dec. 31, 2025 USD ($) | Dec. 31, 2024 CNY (¥) | Dec. 31, 2023 CNY (¥)
Income tax expense (benefit), effective income tax rate reconciliation (in amount) |  |  |  |
PRC statutory income tax rate | ¥ 404,521 |  |  |
Tax effect of PRC preferential tax treatments | (293,247) |  |  |
Share-based compensation expenses | 161,128 |  |  |
Others | 18,999 |  |  |
Changes in valuation allowance | 53,803 |  |  |
Income tax expense | ¥ 431,741 | $ 61,738 | ¥ 527,507 | ¥ 203,761
Tax Jurisdiction of Domicile [Extensible Enumeration] | PRC | PRC |  |
Effective tax rate reconciliation |  |  |  |
PRC statutory income tax rate | 25.00% | 25.00% | 25.00% | 25.00%
Tax effect of preferential tax treatments | (18.12%) | (18.12%) | (9.55%) | (6.80%)
Share-based compensation expenses | 9.96% | 9.96% |  |
Others | 1.17% | 1.17% |  |
Changes in valuation allowance | 3.33% | 3.33% | 1.26% |
Effect of tax rate differential in other jurisdictions |  |  | 0.47% |
Tax effect of permanent differences |  |  | 0.16% | 2.05%
Effective income tax rate | 26.68% | 26.68% | 17.34% | 20.25%
the United States of America |  |  |  |
Income tax expense (benefit), effective income tax rate reconciliation (in amount) |  |  |  |
Changes in valuation allowance | ¥ 71,520 |  |  |
Effect of tax rate differential in other jurisdictions | (13,129) |  |  |
Non-deductible expenses | ¥ 7,308 |  |  |
Effective tax rate reconciliation |  |  |  |
Changes in valuation allowance | 4.42% | 4.42% |  |
Effect of tax rate differential in other jurisdictions | (0.81%) | (0.81%) |  |
Non-deductible expenses | 0.45% | 0.45% |  |
Singapore |  |  |  |
Income tax expense (benefit), effective income tax rate reconciliation (in amount) |  |  |  |
Changes in valuation allowance | ¥ (24,008) |  |  |
Effect of tax rate differential in other jurisdictions | 25,131 |  |  |
Non-deductible expenses | ¥ 20,122 |  |  |
Effective tax rate reconciliation |  |  |  |
Changes in valuation allowance | (1.48%) | (1.48%) |  |
Effect of tax rate differential in other jurisdictions | 1.55% | 1.55% |  |
Non-deductible expenses | 1.24% | 1.24% |  |
Other tax jurisdictions |  |  |  |
Income tax expense (benefit), effective income tax rate reconciliation (in amount) |  |  |  |
Other tax jurisdictions | ¥ (407) |  |  |
Effective tax rate reconciliation |  |  |  |
Other tax jurisdictions | (0.03%) | (0.03%) |  |

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