Share-Based Compensation - Weighted-average assumptions (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected dividend yield	0.00%	0.00%
Enterprise Management Incentive Share Option Scheme
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected volatility	108.73%	97.10%
Expected term (years)	6 years	6 years
Risk-free interest rate	4.00%	3.70%
Expected dividend yield	0.00%	0.00%