方案一：笔记本书桌俯视（推荐） 64x64 pixel art, solid gray background, h...

方案一：笔记本书桌俯视（推荐） 64x64 pixel art, solid gray background, hard edges, no anti-aliasing, flat colors, no text. Top-down view of a small open notebook with off-white pages and dark brown cover, lying flat. A simple pixel mouse rests on the right page, its left button highlighted in warm golden yellow with a tiny sprout icon printed on it. The right button is dark gray. A thin red bookmark ribbon extends from the notebook spine. Centered. 方案二：麦田鼠标俯视 64x64 pixel art, solid gray background, hard edges, no anti-aliasing, flat colors, no text. Top-down view of a pixel mouse placed on a tiny patch of green wheat field texture. The left mouse button glows warm golden and has a small wheat ear icon etched into it. The right button is muted brown. The scroll wheel is a subtle silver line. Centered. 方案三：便签纸上的鼠标 64x64 pixel art, solid gray background, hard edges, no anti-aliasing, flat colors, no text. Top-down view of a pale yellow sticky note with a dark gray border. A simple pixel mouse sits on the note, the left button highlighted in warm amber and marked with a tiny pencil icon. The right button is plain dark gray. A paperclip peeks from the note's top-right corner. Centered.