Mezzanine Equity - Additional Information (Details) |
1 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2021
USD ($)
shares
|
Apr. 30, 2021
USD ($)
shares
|
Apr. 30, 2021
CNY (¥)
shares
|
Apr. 30, 2018
USD ($)
shares
|
Apr. 30, 2018
CNY (¥)
shares
|
Feb. 28, 2018
USD ($)
shares
|
Dec. 31, 2017
USD ($)
shares
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
USD ($)
|
Dec. 31, 2025
CNY (¥)
|
Sep. 11, 2024
shares
|
Jan. 11, 2024
shares
|
|
| Temporary Equity [Line Items] | ||||||||||||
| Proceeds from issue of shares | $ 19,091,338 | |||||||||||
| Preferred stock, redemption event | Redeemable preference shares shall be redeemable, at any time after the earlier of the occurrence of the following event:(i) The Company has not consummated a Qualified IPO or Qualified share sale by September 30, 2024;(ii) There is any material breach by either the Founders or the Company of any applicable laws and the transaction documents relating to these several rounds of equity financing, and such default fails to take remedy measures within thirty days after the receipt of the notice with respect to such remedy requirements from the shareholders;The redemption preference from high priority to low priority is as follows in sequence: Series B+ redeemable preference shares, Series B redeemable preference shares, Series A+ redeemable preference shares, Series A redeemable preference shares and Series Angel redeemable preference shares. | |||||||||||
| Conversion rights description | The Preference Shares shall be convertible, at the option of the holder, at any time after the date of issuance of such Preference Shares according to a conversion ratio, subject to adjustments for dilution, into ordinary shares. The Preference Shares shall automatically be converted into ordinary shares at the then applicable conversion ratio upon the closing of an underwritten public offering of the ordinary shares of the Group after the prior written approval of the holders of Preference Shares. | |||||||||||
| Preferred stock voting rights description | Each Preferred Share shall be entitled to that number of votes corresponding to the number of ordinary shares on an as-converted basis. The shareholders of Preference Shares shall vote separately as a class with respect to certain specified matters. Otherwise, the shareholders of Preference Shares, Series Seed preference shares (see Note 14) and ordinary shares shall vote together as a single class. | |||||||||||
| Preferred stock, dividend payment terms | The shareholders receive dividends on an as-if converted basis when dividends are declared. No dividends have been declared for the investors of the Preference Shares for the periods presented. | |||||||||||
| Dividends declared | $ 0 | |||||||||||
| Preferred shares automatically converted to Class A ordinary shares | shares | 1,358,372,111 | |||||||||||
| Amount of difference between the fair value of Series B redeemable preference shares and Series Angel shares | $ 2,500,000 | |||||||||||
| Series A Redeemable Preference Shares | ||||||||||||
| Temporary Equity [Line Items] | ||||||||||||
| Temporary equity, shares issued | shares | 300,000,000 | |||||||||||
| Considerations from redeemable preference shares | $ 5,000,000 | |||||||||||
| Issuance costs | $ 300,000 | |||||||||||
| Percentage of redemption price of issue price | 100.00% | |||||||||||
| Additional redemption percentage | 10.00% | |||||||||||
| Liquidation percentage payable of investment | 150.00% | |||||||||||
| Series Angel Redeemable Preference Shares | ||||||||||||
| Temporary Equity [Line Items] | ||||||||||||
| Preference shares redemption price | ¥ | ¥ 8,500,000 | |||||||||||
| Preferred stock, liquidation preference, value | ¥ | 8,500,000 | |||||||||||
| Series Angel Shares | ||||||||||||
| Temporary Equity [Line Items] | ||||||||||||
| Shares issued | shares | 55,552,800 | 88,196,700 | 88,196,700 | 75,000,000 | ||||||||
| Proceeds from issue of shares | $ 0 | $ 0 | $ 0 | |||||||||
| Preferred stock, liquidation preference, value | ¥ | ¥ 8,500,000 | |||||||||||
| Difference in amount of fair value and the carrying value | $ 5,800,000 | |||||||||||
| Series A+ Redeemable Preference Shares | ||||||||||||
| Temporary Equity [Line Items] | ||||||||||||
| Temporary equity, shares issued | shares | 118,971,900 | 118,971,900 | ||||||||||
| Considerations from redeemable preference shares | $ 3,600,000 | ¥ 25,700,000 | ||||||||||
| Issuance costs | $ 210,000 | ¥ 1,500,000 | ||||||||||
| Percentage of redemption price of issue price | 100.00% | |||||||||||
| Liquidation percentage payable of investment | 100.00% | |||||||||||
| Series B Redeemable Preference Shares | ||||||||||||
| Temporary Equity [Line Items] | ||||||||||||
| Temporary equity, shares issued | shares | 458,623,200 | 458,623,200 | 161,977,511 | |||||||||
| Considerations from redeemable preference shares | $ 14,400,000 | ¥ 104,000,000 | ||||||||||
| Issuance costs | $ 170,000 | ¥ 1,200,000 | ||||||||||
| Percentage of redemption price of issue price | 100.00% | |||||||||||
| Additional redemption percentage | 8.00% | |||||||||||
| Liquidation percentage payable of investment | 100.00% | |||||||||||
| Series B+ Redeemable Preference Shares | ||||||||||||
| Temporary Equity [Line Items] | ||||||||||||
| Percentage of redemption price of issue price | 100.00% | |||||||||||
| Additional redemption percentage | 8.00% | |||||||||||
| Liquidation percentage payable of investment | 100.00% | |||||||||||
| Liquidation additional percentage payable | 8.00% | |||||||||||