v3.26.3
EXPENSES BY NATURE - Summary of expenses by nature (Details) - CNY (¥)
¥ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
EXPENSES BY NATURE    
Payroll and employee benefits ¥ 699,775 ¥ 693,153
Cost of inventories 67,361 35,461
Depreciation and amortization 117,813 73,027
Professional services fee 41,079 73,656
Service fee from a related party 41,920 32,379
Outsourcing service fee 105,314 61,734
Utilities and property management fee 28,795 24,823
Listing expense relating to the Global Offering   29,068
Others 118,938 66,612
Total cost of revenue, research and development expenses, administrative expenses and selling expenses 1,220,995 1,089,913
Payroll and employee benefits:    
Salaries, allowances, bonus and benefits in kind 541,977 445,452
Contributions to defined contribution retirement plan 38,588 28,179
Share-based compensation expenses 119,210 219,522
Employee benefits 699,775 693,153
Property and equipment    
EXPENSES BY NATURE    
Depreciation and amortization 88,708 45,372
Right-of-use assets    
EXPENSES BY NATURE    
Depreciation and amortization 26,759 25,417
Intangible assets    
EXPENSES BY NATURE    
Depreciation and amortization ¥ 2,346 ¥ 2,238