“红炉烧烤”是使用 FontVibe AI 创作的几何文字效果。包豪斯式大写字母，由圆、方与直线构成，平涂红、蓝、黄、黑，像实心积木一样立在硬朗顶光下。

Bauhaus geometric environment: hard overhead directional light — single cold-white source, zero ambient scatter, ruler-sharp geometric shadow edges below all forms. Background plane is architecturally flat: pure black void, deep matte concrete, or stark white plaster. No depth haze, no organic texture, no atmospheric bokeh. Scene vocabulary: Bauhaus workshop geometry, De Stijl primary-color planes, Constructivist poster surface, Swiss grid precision. Primary color atmosphere (always active): flat geometric primary-color planes — signal red, cobalt blue, cadmium yellow — appear as background architectural blocks or compositional color bars alongside the letterforms. Zero gradient, zero sheen. When no specific material is defined by the font: letterforms rendered with Bauhaus primary color flat-paint treatment — each letter one vivid matte hue cycling across the primary palette: signal red, cobalt blue, cadmium yellow, flat black. Hard 45-degree isometric extrusion with pure-black side wall, depth 25% of letter height. Flat matte acrylic surface, zero sheen. Sharp machined edge between color face and extrusion wall. '红炉烧烤' dominates a square Constructivist food-poster composition, arranged as a compact central block with strict Swiss-grid spacing and generous black negative space. Each character carries a different flat matte face color cycling through signal red, cadmium yellow, cobalt blue, and black, with crisp machined boundaries and a hard 45-degree isometric extrusion in pure black, one quarter of the character height. Behind the text, a red rectangular plane rises from the lower left, a cobalt blue vertical slab anchors the upper right, and a narrow cadmium-yellow bar cuts horizontally beneath the title; all color fields are perfectly flat, without gradient or sheen. The background is deep matte charcoal concrete, architecturally planar and texture-minimal. A single cold-white overhead light strikes down with zero ambient fill, casting ruler-sharp angular shadows directly below and slightly right of every extruded form. Small abstract geometric grill cues—three black parallel bars and a red circular disk—sit as disciplined secondary marks near the lower edge, never competing with the lettering. Head-on view, no perspective tilt, crisp poster-like precision, energetic heat suggested only through red-yellow geometry rather than smoke or flame.