极简抽象科技风海报

A minimalist abstract graphic poster with a wide 16:9 composition, featuring a soft pastel lavender and pale gray background made of 6 broad horizontal bands with subtle left-to-right gradient shifts. Place a single bold black abstract symbol in the exact center, resembling a stylized curved geometric mark or cropped ribbon-like logo, with a flat top, a sweeping downward curve, and a compact base. Keep the design extremely clean and sparse, with no text, no shadows, no texture, and no extra elements. Use smooth vector-style edges, muted modern branding aesthetics, and a calm contemporary tech visual language.

一张极简抽象图形海报，采用 16:9 宽屏构图，背景为柔和的淡紫色与浅灰色，由 6 条宽阔的横向色带组成，并带有微妙的从左至右渐变效果。在正中心放置一个醒目的黑色抽象符号，形似风格化的曲线几何标记或裁剪后的丝带状 Logo，顶部平整，向下延伸出优美的弧线，底部紧凑。保持设计极其简洁、空旷，无文字、无阴影、无纹理，且无多余元素。采用平滑的矢量风格边缘，呈现出柔和的现代品牌美学以及冷静的当代科技视觉语言。