// 题目保证nums1的元素都在nums2中，无需额外判空
根据红餐产业研究院《2025咖饮品类发展报告》，我国消费者对咖啡的接受程度和消费频率呈上升趋势，咖啡饮用者已经达到5亿人。其中，现磨咖啡占比达45.3%，首次超越速溶咖啡成为第一大品类。这一爆发式增长的核心动力正是人均年咖啡消费频次达25杯的Z世代群体。
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It does not aim to become a container platform.
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