Neon graffiti editorial poster design system template

Create a high-impact editorial neon scribble poster in 3:4 vertical format.━━━━━━━━━━━━━━━━━━① STYLE SYSTEM（风格系统）━━━━━━━━━━━━━━━━━━- neon street poster aesthetic- editorial magazine typography layout- glitch graffiti + scribble overlay style- AI visual study / design breakdown feel- high contrast, chaotic but grid-based composition━━━━━━━━━━━━━━━━━━② LAYOUT SYSTEM（结构系统）━━━━━━━━━━━━━━━━━━Canvas structure:- top header (small branding text, left-right alignment)- large hero title area (dominant typography)- secondary highlight keyword (color-accented)- central 2x2 grid content blocks- footer info line (credits + CTA)Grid rules:- strict alignment grid (12-column layout feel)- 4-card modular system in lower half- overlapping typography layers allowed- controlled visual chaos on top of grid━━━━━━━━━━━━━━━━━━③ TYPOGRAPHY SYSTEM（字体系统）━━━━━━━━━━━━━━━━━━Main headline:- ultra-bold condensed sans-serif (Impact / Druk / Helvetica Black Condensed)- uppercase, extreme scale contrastChinese headline:- heavy grotesk sans-serif (Source Han Sans Heavy / PuHuiTi Black)- block-like geometryGraffiti layer:- brush script / spray paint handwritten font- irregular baseline, distorted strokesSmall UI text:- clean geometric sans-serif (Inter / Helvetica)- high letter spacing (tracking +150~300)━━━━━━━━━━━━━━━━━━④ COLOR SYSTEM（配色系统）━━━━━━━━━━━━━━━━━━Base:- neon green background (#7CFF00 / #66FF00)Text:- deep black (#000000)- pure white (#FFFFFF)Accent:- neon pink highlight (#FF4FA3 / #FF3D8D)Rules:- background always neon dominant- text always black-heavy contrast- pink only for emphasis keywords━━━━━━━━━━━━━━━━━━⑤ COMPOSITION EFFECTS（视觉效果）━━━━━━━━━━━━━━━━━━- layered typography overlapping images- documentary-style embedded photos inside grid blocks- graffiti scribble strokes crossing image + text- film grain + urban poster texture- slight distortion / ink bleed effect- high saturation neon glow feel━━━━━━━━━━━━━━━━━━⑥ CONTENT VARIABLES（可替换变量）━━━━━━━━━━━━━━━━━━Scene theme:{主题 / 城市 / 产品 / 概念}Hero message:{核心一句话钩子}Highlight keyword:{需要强调的词，例如：AI / 字体 / 咖啡 / 城市}Sub content blocks (4 items):- {block1}- {block2}- {block3}- {block4}Target audience:{设计师 / 创作者 / 用户群体}━━━━━━━━━━━━━━━━━━⑦ OUTPUT RULE（生成约束）━━━━━━━━━━━━━━━━━━- must feel like a design studio poster study- must be visually loud but structurally controlled- must use strong typography hierarchy- must combine photo + typography + graffiti layers- must feel like a “design breakdown case study”