分屏样本把两个不同状态的人物并置，再用轻微推近增加对比。分屏前先统一两个画面的头部高度和视觉重量，推近幅度保持一致，观众才能比较而不是只注意某一侧。 A split-screen sample places two contrasting states side by side and adds a subtle zoom. Match head height and visual weight before splitting, and keep zoom amounts consistent so viewers compare rather than favor one side.