渐变风简约背景素材

minimalist abstract background: smooth dark blue satin curves with soft light reflections, seamless gradient, sleek and modern atmosphere, 8k --v 7 --ar 16:9 --s 700 --sref 3256804387 --style raw --c 2 --q 1 --no blurry curve details, distorted satin texture, dull light reflections