[&:first-child]:overflow-hidden [&:first-child]:max-h-full"
paper: “rough sketchbook paper”。WPS下载最新地址对此有专业解读
You look at a region of the image. If all the pixels are roughly the same color (below some threshold), you store the average color for the whole region as a single value. If the pixels vary too much, you split the region into four quadrants and try again.，这一点在搜狗输入法2026中也有详细论述
:first-child]:h-full [&:first-child]:w-full [&:first-child]:mb-0 [&:first-child]:rounded-[inherit] h-full w-full，详情可参考爱思助手下载最新版本