港股午评：恒指跌0.61% 科指跌2.28% 科网股普跌 AI应用、机器人概念股爆发 百度跌超5%

Market Overview - The Hong Kong stock market indices experienced a collective decline, with the Hang Seng Index down by 0.61% to 26,544.12 points, the Hang Seng Tech Index down by 2.28%, and the National Enterprises Index down by 0.59% [1][2] Sector Performance - Technology stocks faced significant losses, with Baidu and Bilibili dropping over 5%, Alibaba and NetEase down over 3%, and Xiaomi and Kuaishou down over 2% [1] - Conversely, oil stocks showed resilience, with PetroChina rising over 4% amid geopolitical tensions in the Middle East [2] - The robotics sector saw a surge, particularly with Yujian rising over 19% following a strong performance during the Chinese New Year Gala [3][4] AI and Robotics Stocks - AI application stocks also experienced notable gains, with Zhiyu rising over 19% after announcing a "computing power partner" recruitment plan aimed at optimizing their GLM-5 model [4][5] - The sales of robotic products on Douyin e-commerce saw a significant increase, with GMV growing by 1680% and order volume increasing by 655% from February 16 to 18 [3]