Ações asiáticas caem com nervosismo no setor de tecnologia; petróleo recua https://www.reuters.com/world/china/global-markets-global-markets-2026-08-25/?taid=6a8cf98ada5a7100012886b1 https://www.reuters.com/world/china/global-markets-global-markets-2026-08-25/?taid=6a8cf98ada5a7100012886b1