1 🚀 产品观察 Lifehacker 2026-05-20 💬 Google's 'Universal Cart' Is Your New AI Shopping Assistant 谷歌Universal Cart化身AI购物助手，跨商家一键加购，购物体验更智能流畅。 Google wants to make it easier to complete your purchase. ai购物助手 谷歌 universal 智能购物 google i/o