v3.26.3
Net Revenues - Revenues Disaggregated By Service (Details)
¥ in Thousands, $ in Thousands
 6 Months Ended
Jun. 30, 2026
CNY (¥)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
CNY (¥)
Schedule of Revenues Disaggregated by Service [Line Items]      
Net revenues ¥ 142,095 $ 20,942 ¥ 208,502
Subscription revenue from users [Member]      
Schedule of Revenues Disaggregated by Service [Line Items]      
Net revenues 19,023 2,804 28,523
Licensing revenues from content aggregators and distributors [Member]      
Schedule of Revenues Disaggregated by Service [Line Items]      
Net revenues 79,933 11,781 144,716
Revenue from content sold to hardware manufacturers [Member]      
Schedule of Revenues Disaggregated by Service [Line Items]      
Net revenues 20,688 3,049 14,251
Revenue from sales of digital educational hardware devices [Member]      
Schedule of Revenues Disaggregated by Service [Line Items]      
Net revenues 17,267 2,545 21,012
Others [Member]      
Schedule of Revenues Disaggregated by Service [Line Items]      
Net revenues ¥ 5,184 $ 763