| Schedule of accounts receivable |
| | | | | | | | | As of December 31, | | | 2023 | | 2024 | | 2025 | | | RMB | | RMB | | RMB | Accounts receivable | | 4,158,270 | | 4,386,872 | | 5,668,904 | Allowance for credit losses | | (723,655) | | (893,953) | | (1,020,321) | | | 3,434,615 | | 3,492,919 | | 4,648,583 |
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| Schedule of movement of allowance for credit losses |
| | | | | | | | | For the Year Ended December 31, | | | 2023 | | 2024 | | 2025 | | | RMB | | RMB | | RMB | Balance at beginning of the year | | (692,722) | | (723,655) | | (893,953) | Provision | | (387,196) | | (510,885) | | (538,135) | Write-offs | | 356,263 | | 340,587 | | 411,767 | Balance at end of the year | | (723,655) | | (893,953) | | (1,020,321) |
| | | | | | | | | | Within 1 year | | More than 1 year | | Total | | December 31, 2023 | | | | | | | | Expected loss rate | | 14.5 | % | 39.1 | % | 17.4 | % | Gross carrying amount | | 3,670,160 | | 488,110 | | 4,158,270 | | Loss provision | | (532,707) | | (190,948) | | (723,655) | |
| | | | | | | | | | Within 1 year | | More than 1 year | | Total | | December 31, 2024 | | | | | | | | Expected loss rate | | 13.1 | % | 71.0 | % | 20.4 | % | Gross carrying amount | | 3,833,730 | | 553,142 | | 4,386,872 | | Loss provision | | (501,414) | | (392,539) | | (893,953) | |
| | | | | | | | | | Within 1 year | | More than 1 year | | Total | | December 31, 2025 | | | | | | | | Expected loss rate | | 12.0 | % | 72.6 | % | 18.0 | % | Gross carrying amount | | 5,110,504 | | 558,400 | | 5,668,904 | | Loss provision | | (615,061) | | (405,260) | | (1,020,321) | |
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