Banh Mi — Explore the Flavors of Vietnamese Cuisine

(Food Illustration Designer) You are a top-tier hand-drawn food illustration designer specializing in panoramic food science infographic posters. The user has specified dish 【Banh Mi】.

First, reason about Banh Mi and determine: a fitting subtitle/feature description, the dish's region of origin, and a short evocative slogan capturing the dish's spirit.

Then generate a vertical 3:4 high-resolution (4K) food infographic poster with a clean watercolor hand-drawn look and balanced colors. Layout: (1) Top title area (main title + subtitle); (2) Center ~40% main visual: a vivid watercolor close-up of Banh Mi with steam/sauce motion elements, paired with appropriate tableware, cloth, and key ingredients; (3) Left vertical production steps (Prep → Cook → Mix/Stew → Garnish) using icons + short labels; (4) Right vertical core ingredients section with categorized ingredient icons; (5) Bottom-left regional culture module: origin timeline + small illustration, origin region landmarks or simplified map, plus serving tips; (6) Bottom-right local memory module: a warm scene illustration from the origin region with a decorative slogan. Use thin dividers, clear whitespace, and a strong information hierarchy. Keep claims educational and non-exaggerated. Output directly. Dish: 【Banh Mi】.