v3.26.1
Discontinued Operations - Schedule of Assets and Liabilities Discontinued Operations (Details) - Discontinued Operations, Disposed of by Sale [Member] - IT Professional Education [Member] - CNY (¥)
¥ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Oct. 31, 2025
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Cash and cash equivalents   ¥ 13,797   ¥ 1,541
Restricted cash   31,217  
Amounts due from related parties   4,792  
Prepaid expenses and others current assets   4,899   3,901
Property and equipment, net   21,591   20,823
Right-of-use assets     802
Long-term investments   22,817   20,452
Total assets of discontinued operations   99,113   47,519
Balance sheet classification:        
Current assets of discontinued operations   99,113   47,519
Short-term bank loans   26,291  
Accounts payable   5,971   5,782
Amounts due to related parties   6,384   1,064
Operating lease liabilities-current   105,504   132,180
Income taxes payable   8,734   8,997
Deferred revenue-current   1,117,713   1,186,861
Accrued expenses and other current liabilities   497,103   484,917
Operating lease liabilities-non-current   91,407  
Total liabilities of discontinued operations   1,859,107   1,819,801
Current liabilities of discontinued operations   1,859,107   ¥ 1,819,801
Net cash used in operating activities ¥ (165,310) (127,177) ¥ (174,427)  
Net cash provided by/(used in) investing activities (190) (57,660) 72,048  
Net cash (used in)/provided by financing activities (46,291) 13,499 (33,580)  
Net revenues 93,422 1,282,736 1,999,778  
Cost of revenues (18,849) (788,568) (977,054)  
Gross profit 74,573 494,168 1,022,724  
Selling and marketing expenses (3,996) (270,141) (520,593)  
General and administrative expenses (77,264) (731,073) (469,048)  
Research and development expenses (21,707) (40,088)  
Operating loss (6,687) (528,753) (7,005)  
Interest income (expense), net (4,243) (122) 1,243  
Loss from discontinued operations (10,930) (528,875) (5,762)  
Gain on disposal of subsidiary (Note c) 87,314 26,797  
Other income (loss) (2,046) (8,979) 787  
Foreign currency exchange loss, net (599) (1,538) (1,403)  
Income/(loss) before income taxes 73,739 (539,392) 20,419  
Gain on disposal of Discontinued Operation 1,685,426  
Income tax benefit (expense) (262) (33,859) 1,424  
Net income (loss) from discontinued operations 1,758,903 (573,251) 21,843  
Total net revenues 93,422 1,282,736 1,999,778  
Derecognition of net liabilities of disposed subsidiaries 1,772,282      
Other adjustments 458      
Loss from waiver of intercompany balances (87,314)      
Gain on disposal of discontinued operations 1,685,426      
Tuition fee [Member]        
Balance sheet classification:        
Net revenues 93,413 1,270,857 1,950,633  
Total net revenues 93,413 1,270,857 1,950,633  
Certification service fee [Member]        
Balance sheet classification:        
Net revenues 9 5,702 30,514  
Total net revenues 9 5,702 30,514  
Others [Member]        
Balance sheet classification:        
Net revenues 9,708 24,270  
Total net revenues 9,708 24,270  
Business taxes and surcharges [Member]        
Balance sheet classification:        
Net revenues (3,531) (5,639)  
Total net revenues (3,531) (5,639)  
Transferred over Time [Member]        
Balance sheet classification:        
Net revenues 93,413 1,267,368 1,945,166  
Total net revenues 93,413 1,267,368 1,945,166  
Transferred at Point in Time [Member]        
Balance sheet classification:        
Net revenues 9 15,368 54,612  
Total net revenues ¥ 9 ¥ 15,368 ¥ 54,612