“RETRO EATS ALL DAY DINER COFFEE · BURGERS · PIE”是使用 FontVibe AI 创作的长阴影文字效果。扁平45度长阴影文字效果，暖色调复古海报配色——就是复古设计模板常用的那种长阴影质感。

Create a finished square diner-brand logo lockup, not a mockup. Exact visible text, set exactly as written: Primary headline, two stacked lines: “RETRO” / “EATS” Supporting line: “ALL DAY DINER” Footer line: “COFFEE · BURGERS · PIE” Composition: centered stacked logo on a muted faded-teal rectangular sign field, filling 78% of the canvas width. “RETRO” is the dominant top line; “EATS” is slightly wider beneath it. “ALL DAY DINER” is a small centered line below the headline, and “COFFEE · BURGERS · PIE” sits in a narrow footer band. Keep all text fully readable and correctly spelled. Lettering: custom Futura Bold geometry: very heavy geometric sans-serif, uniform equal-width strokes, perfect circular O, straight 90-degree-cut terminals, high x-height, tightly controlled spacing, precise mathematical intersections, no script, no rounded bubble type, no bevel, no extrusion. Main letters have flat warm cream-white ink faces. Every individual letter—including all supporting-copy letters—casts an unmistakable second silhouette in deep brown-black, pulled exactly 45 degrees down-right for 2.75 times the letter height. The shadows are solid, crisp-edged, unblurred, ungraded, parallel, and cover much of the sign field; they are flat graphic shadows, never 3D side faces. Stage the logo as a 1960s screen-printed roadside diner sign: burnt-orange outer border, thin mustard inset rule, small olive starburst ornaments at left and right of the supporting line, muted ink layers, restrained halftone-dot texture in the solid color areas, and subtle warm paper grain across the entire image. One implied light source from upper-left. Flat graphic color blocks only: no gradients, no glow, no photographic texture, no chrome, no neon tubes. High legibility, centered symmetry, clean margin around the sign, premium vintage print registration with tiny natural ink imperfections.