港股开盘：恒指低开0.45%科指跌0.76%！黄金股普涨汽车股回调蔚来跌8%，阿里跌2%，老铺黄金涨1%山东黄金涨2%

Market Performance - US stock market experienced a pullback after a recent surge, with all three major indices closing lower [2] - The Hang Seng Index opened lower, down 0.45% at 25,714.91 points, while the Hang Seng Tech Index fell 0.76% and the National Enterprises Index decreased by 0.39% [2][3] Sector Performance - Technology stocks in Hong Kong saw widespread declines, with Alibaba dropping over 2%, and JD.com, Bilibili, and NetEase each falling more than 1% [2] - Gold and non-ferrous metal sectors continued to rise, with Shandong Gold increasing nearly 2% [2] - New consumption concepts opened higher, with Laopu Gold rising over 1% [2] - Automotive stocks experienced a pullback, with NIO declining nearly 8% after a previous gain of over 15% [2]