Track product prices and surface official coupons or discounts without purchasing or account access. Use when a user wants price alerts, deal summaries, or coupon lists for specific items or retailers.

无需购买或登录账户，即可跟踪产品价格并获取官方优惠券或折扣信息。适用于用户需要特定商品或零售商的价格提醒、优惠汇总或优惠券列表的场景。