禅意极简日式水墨绘画风格

纯白极简背景下[主题]的日式水墨画，细腻的黑色墨迹笔触，柔和的灰色渲染，优雅的留白，禅意简约，手工宣纸纹理，无文字，无标志。

“Japanese sumi-e ink painting of [SUBJECT] on a pure white minimalist background, delicate black ink brushwork, soft gray washes, elegant negative space, zen simplicity, handcrafted rice-paper texture, no text, no logos.”