健身训练信息图

Using the uploaded gym still life as the visual anchor, create a modern vertical 3:4 Chinese fitness infographic for the theme `新手背部力量训练`. Include clean simplified-Chinese modules for `训练目标`, `热身`, `4 个核心动作`, `替代动作`, `执行提醒`, and `恢复建议`. Make it adult-focused, practical, and easy to scan, with short phrases and visible set-rep numbers. Use a professional black, cream, and muted blue palette. No medical claims, no real gym brand, no gibberish, no watermark.