“Bertha G”是使用 FontVibe AI 创作的3D 立体粗体文字效果。厚重的方块大写字母带深度挤出，每个字母一种亮面糖果色，顶光让高光滚过圆润边角，彩色倒影落在地面上。

The name "Bertha G" in massive chunky 3D layer-stack block letters, centered and filling about 80% of the canvas width, in one straight row. Seven separate free-standing letters, B-e-r-t-h-a then a wider word gap, then G. Each letter is drawn on a bold geometric sans skeleton with stems a quarter of the cap height, open counters and flat-cut terminals. A gap of about a third of a letter width separates each pair so none touch. Each letter is made of 11 identical thin flat sheets stacked front to back into a solid block with a deep extrusion. The front face is one unbroken flat matte surface with no lines across it. The extrusion recedes toward the lower right, away from the upper-left key light. Evenly spaced countable seam lines, a darker shade of the letter's hue, run along the side walls, top edges and inside counter walls, following the outline exactly. The cut edges are slightly paler than the faces. All surfaces are matte, with no gloss and no reflection. Hard sharp corners with no bevel. Adjacent letters are in different vivid, bright, saturated flat colours: B hot coral red, e sunshine yellow, r electric turquoise, t lime green, h vivid orange, a bright violet, G magenta pink. Side walls are a deeper shade of the same hue but stay luminous and bright. A long diagonal 45-degree shadow trails from each letter toward the lower right as a soft, glowing, colour-matched light streak attached to the letter, never dark. Strong directional light from the upper left gives each front face a clean bright tone. The craft-fair, laser-cut workshop signage feel, tactile and playful. Only the lettering exists, standing directly on a perfectly flat pure BLACK #000000 void with nothing else.