驗一張合成圖真不真，最快的方法是叫它動——鎖死機位、只讓肩胛動，墨跟著皮膚拉伸就是真的，浮在…
The person slowly rolls both shoulders back and lifts their arms slightly, then returns to a relaxed stand. Th… [ ... 完整 prompt + 變數說明 + sample output 在原站 ]