动感日本足球海报

Create a dynamic vertical sports poster in a sharp Japanese football graphic-design style. Canvas: portrait 2:3 ratio, off-white paper background with slight grain. Main subject: exactly 1 black-and-white illustrated soccer player in Japan national team kit, jersey number {argument name="jersey number" default="10"}, captured mid-kick with one leg extended toward the viewer, dramatic ink splatter shading, messy black hair, and a soft square gray blur obscuring the face. Add exactly 1 black-and-white soccer ball in the lower-left foreground, flying outward with perspective. Behind the player, place exactly 1 huge bold black letter {argument name="main letter" default="J"} with a white outline and red offset shadow, partially covering exactly 1 large red sun circle centered behind the athlete. Surround the figure with explosive abstract geometry: diagonal blue speed bars, red and black streaks, yellow accent lines, thin technical drafting lines, halftone dot clusters, small square pixels, splatter marks, and angular shards radiating from lower left to upper right. Use a limited palette of black, white, deep royal blue, vivid red, and small yellow accents. Composition should feel like a modern Japan soccer campaign poster, high contrast, energetic, urban, and print-ready. Bottom right contains small date text {argument name="date text" default="May 15, 2026"} above a handwritten signature {argument name="signature" default="Oyagi"}. No extra logos, no extra players, no additional readable text.

创作一张具有鲜明日本足球平面设计风格的动感竖版体育海报。画布：2:3 纵向比例，米白色纸张背景，带有轻微颗粒感。主体：1 名身穿日本国家队队服的黑白插画风格足球运动员，球衣号码为 {argument name="jersey number" default="10"}，呈现踢球瞬间，单腿向观众方向伸展，带有戏剧性的墨迹阴影，凌乱的黑发，面部有柔和的灰色方块模糊处理。在左下角前景处添加 1 个具有透视感的黑白足球，呈向外飞出状。在球员身后，放置 1 个巨大的粗体黑色字母 {argument name="main letter" default="J"}，带有白色轮廓和红色偏移阴影，部分遮挡住运动员身后居中的 1 个大红色圆日。在人物周围环绕爆炸性的抽象几何图形：对角线蓝色速度条、红黑色条纹、黄色点缀线条、细致的工程制图线条、半调网点簇、小方块像素、墨迹以及从左下向右上辐射的棱角碎片。使用黑、白、深宝蓝、鲜红以及少量黄色点缀的有限配色方案。构图应呈现出现代日本足球宣传海报的质感，高对比度、充满活力、具有都市感且适合印刷。右下角包含小字日期 {argument name="date text" default="May 15, 2026"}，其上方为手写签名 {argument name="signature" default="Oyagi"}。无需额外 Logo，无需额外球员，无需其他可读文本。