Accrued expenses and other current liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) |
Dec. 31, 2025
CNY (¥)
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Dec. 31, 2025
USD ($)
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Dec. 31, 2024
CNY (¥)
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|---|---|---|---|
| Accrued expenses and other current liabilities | |||
| Accrued payroll | ¥ 1,428,821 | $ 204,319 | ¥ 7,290,249 |
| Tax payables | 6,816,712 | 974,777 | 3,758,066 |
| Payable to suppliers | 153,182,488 | 21,904,804 | 115,793,122 |
| Payable to external service providers | 20,839,700 | 2,980,037 | 19,447,813 |
| Payable to funding partner | 50,013,688 | 7,151,862 | 50,365,126 |
| Business deposits | 5,493,315 | 785,534 | 5,593,315 |
| Others | 52,476,646 | 7,504,061 | 59,830,173 |
| Total | ¥ 290,251,370 | $ 41,505,394 | ¥ 262,077,864 |
| X | ||||||||||
- Definition The amount for accounts payable to supplier. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). No definition available.
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| X | ||||||||||
- Definition The amount of accrued payable to funding partner current. No definition available.
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| X | ||||||||||
- Definition The amount of accrued payable to outside service providers current. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of liabilities incurred to vendors for goods and services received, and accrued liabilities classified as other, payable within one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The current portion, due within one year or one operating cycle, if longer, of deposits held other than customer deposits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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