早上 64x64 pixel art, solid gray background, hard edges, no...

早上 64x64 pixel art, solid gray background, hard edges, no anti-aliasing, flat colors, no text. A small circular card base, off-white with dark brown 2-pixel border, centered. Inside the circle, a small sun half-risen above a flat horizon, pale yellow, three blocky rays upward, horizon glow soft pink. 中午 64x64 pixel art, solid gray background, hard edges, no anti-aliasing, flat colors, no text. Same off-white circular card with dark brown border. Inside, a full sun with eight short blocky rays evenly around, warm golden yellow. 傍晚 64x64 pixel art, solid gray background, hard edges, no anti-aliasing, flat colors, no text. Same off-white circular card with dark brown border. Inside, a sun touching a flat horizon, three horizontal rays, warm orange, sky gradient from orange to soft purple. 晚上 64x64 pixel art, solid gray background, hard edges, no anti-aliasing, flat colors, no text. Same off-white circular card with dark brown border. Inside, a crescent moon with three small blocky stars, pale yellow moon, white stars.