只调整淋浴玻璃的磨砂带

提示词

仅按给定高度调整指定淋浴玻璃磨砂带，玻璃边框、夹件和其余透明区域不变；新显露后景必须有参考，不能从磨砂图推造。

Adjust only the frosted band on the specified shower glass to the given height. Keep the frame, clamps, and remaining clear areas unchanged; newly revealed background requires a reference and must not be inferred from the frosted image.