Clarifying the event details

To avoid misinformation, I should echo the user’s phrasing and confirm: 是世界杯小组赛还是热身赛？ It's important to verify this accurately. Then I could suggest creating a poster with a short social media post and a title plus subtitle. I’ll provide a template and ask if they want a different style.

Okay, so I'll acknowledge quickly, clarify the event type and timezone, and then provide a concise, ready-to-use draft. Let's keep it simple with bullets!