v3.25.2
Borrowings - Balances of long-term bank loan (Details) - CNY (¥)
¥ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Borrowings    
Outstanding loan ¥ 1,164,910 ¥ 3,604,670
Current portion according to repayment schedule 501,340 639,180
Long-term portion according to repayment schedule 663,570 2,965,490
Loan Agreement with Bank of Shanghai, Maturity, June 2025    
Borrowings    
Outstanding loan   80,340
Current portion according to repayment schedule   80,340
Loan Agreement with China Construction Bank, Maturity, July 2029, One    
Borrowings    
Outstanding loan 5,780 6,460
Current portion according to repayment schedule 1,700 1,360
Long-term portion according to repayment schedule 4,080 5,100
Loan Agreement with Industrial and Commercial Bank of China, Maturity, July 2029    
Borrowings    
Outstanding loan 8,670 9,690
Current portion according to repayment schedule 2,550 2,040
Long-term portion according to repayment schedule 6,120 7,650
Loan Agreement with China Construction Bank, Maturity, July 2029, Two    
Borrowings    
Outstanding loan 16,830 18,810
Current portion according to repayment schedule 4,950 3,960
Long-term portion according to repayment schedule 11,880 14,850
Loan Agreement with China Construction Bank, Maturity, July 2029, Three    
Borrowings    
Outstanding loan 266,390 297,730
Current portion according to repayment schedule 78,350 62,680
Long-term portion according to repayment schedule 188,040 235,050
Loan Agreement with Industrial and Commercial Bank of China, Maturity, July 2029, One    
Borrowings    
Outstanding loan 424,830 474,810
Current portion according to repayment schedule 124,950 99,960
Long-term portion according to repayment schedule 299,880 374,850
Loan Agreement with Bank of Shanghai, Maturity, September 2026    
Borrowings    
Outstanding loan 158,740 213,040
Current portion according to repayment schedule 108,600 108,600
Long-term portion according to repayment schedule 50,140 104,440
Loan Agreement with China Construction Bank, Maturity, January 2031    
Borrowings    
Outstanding loan   637,010
Current portion according to repayment schedule   29,900
Long-term portion according to repayment schedule   607,110
Loan Agreement with Industrial and Commercial Bank of China, Maturity, January 2031    
Borrowings    
Outstanding loan   497,660
Current portion according to repayment schedule   23,360
Long-term portion according to repayment schedule   474,300
Loan Agreement with China Minsheng Bank, Maturity, January 2031    
Borrowings    
Outstanding loan   497,670
Current portion according to repayment schedule   23,380
Long-term portion according to repayment schedule   474,290
Loan Agreement with Agricultural Bank of China, Maturity, January 2031    
Borrowings    
Outstanding loan   497,660
Current portion according to repayment schedule   23,360
Long-term portion according to repayment schedule   474,300
Loan Agreement with Bank of Shanghai, Maturity, January 2027    
Borrowings    
Outstanding loan 109,250 145,550
Current portion according to repayment schedule 72,600 72,600
Long-term portion according to repayment schedule 36,650 72,950
Loan Agreement with Bank of Shanghai, Maturity, February 2027    
Borrowings    
Outstanding loan 174,420 228,240
Current portion according to repayment schedule 107,640 107,640
Long-term portion according to repayment schedule ¥ 66,780 ¥ 120,600