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Income Tax (Details) - Schedule of deferred income tax assets and liabilities - CNY (¥) ¥ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Deferred tax assets |  |
Tax losses carried forward | ¥ 152,728 | ¥ 84,066
Provision of other receivables | 4,715 | 534
Deductible advertisement expenses | 7,083 | 1,338
Accrued payroll and other expenses | 1,990 | 2,735
Total gross deferred tax assets | 166,516 | 88,673
Valuation allowance on deferred tax assets | (146,471) | (71,393)
Deferred tax assets, net of valuation allowance | 20,045 | 17,280
Deferred tax liabilities |  |
Capitalized contract costs | (13,606) | (15,914)
Equity investment gain | (388) | (771)
Operating lease | (263) | (1,050)
Surplus on revaluation | (6,452) | (9,430)
Total gross deferred tax liabilities | (20,709) | (27,165)
Net deferred tax liabilities | ¥ (664) | ¥ (9,885)

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