紫色背景上的極簡海報，有巨大的白色中文字「算法」，旁邊坐著一位男士

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Goal: Create a minimalist corporate keynote poster in a bold Chinese typography style for a business figure, using a huge single-topic word and a monochrome stage-like background.

Canvas: Wide 16:9 horizontal poster, 1200×675 composition, with a deep saturated purple background filling the entire frame. Use subtle studio-floor shading, a faint vignette, and a clean empty right side for dramatic negative space.

Layout: Place all content in the left third of the image. At the upper left, add one small gray uppercase line: “04 / ZHANG YIMING”. Below it, create one enormous blocky white Chinese headline reading 算法, using an ultra-heavy geometric display font with tight spacing and slight horizontal cuts/gaps for a modern tech-poster feel. Under the headline, add three small white profile lines: 张一鸣, “Entrepreneur / ByteDance” in Chinese style, and “ByteDance”. Behind and below the profile text, add two very large low-opacity vertical English words, exactly “ALGORITHM” and “BYTE”, stacked and fading into the purple background.

Subject details: Show one seated East Asian male entrepreneur, Zhang Yiming, positioned near the lower left-center under the headline. He is wearing all-black casual clothing: black hoodie or jacket, black shirt, black trousers, and black shoes. He has short black hair, glasses, and a calm thoughtful expression, sitting on a dark cube stool with hands loosely clasped, body angled slightly right, looking upward to the right. Use realistic photographic lighting, soft shadows on the purple floor, and a subtle rim light separating him from the background.

Discrete visible elements to include: exactly 7 text elements — 1 small index/name line, 1 giant Chinese headline, 3 profile lines, and 2 translucent background words. Exactly 3 physical objects/figures — 1 seated man, 1 cube stool, and 1 small framed tablet or plaque on the floor near his right foot with a faint chart-like graphic.

Visual style: Minimalist corporate speech/event poster, giant typography, pure-color aesthetic, high contrast white-on-purple, cinematic but clean, no decorative borders, no logos other than the ByteDance text, no extra people, no additional text, keep the right two-thirds mostly empty.