教师节文案策划公众号宣传活动海报插图

prompt: Minimalist abstract geometry teacher's day poster background, muted ink blue and parchment beige palette, layered translucent geometric elements: floating deconstructed book contours top left, subtle dot matrix paths flowing diagonally, overlapping circle halos center right, abstract mountain silhouette gradients bottom, chalk dust particles fading from lower corner -- Negative space center with in fine serif below -- Soft paper texture overlay, warm light glow behind text zone, elegant scholarly ambiance,