“Design bold block letters reading Class of 2026 for our banner”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。

Horizontal graduation banner, 16:9. Render all copy with exact spelling: small top line “CONGRATULATIONS”; central two-line headline “CLASS” / “OF 2026”; small bottom line “COMMENCEMENT • 2026”. Make “CLASS” the dominant focal point, followed by “OF 2026”; supporting lines remain clean and legible. Build the headline as custom extra-wide, blunt geometric block lettering with tightly controlled spacing, squared counters, and hard un-beveled edges. Every headline character is a separate thick 3D object with uniform extrusion depth equal to 55% of character height. Glossy hard-candy lacquer front faces, with crisp upper-left white specular streaks; side planes are a darker value of the same color. Use a strictly alternating vivid hue sequence so neighbors never share a hue family: cherry red C, electric blue L, sunshine yellow A, lime green S, hot orange S; electric blue O, cherry red F; sunshine yellow 2, lime green 0, hot orange 2, electric blue 6. Arrange “CLASS” across the upper center, “OF 2026” below at 70% of its width, centered. Long sharply defined 45-degree cast shadows fall down-right, approximately 45% of letter height. Minimal deep midnight-navy studio ground, subtle polished floor reflection along the bottom edge, a focused overhead spotlight, faint colored halos close to the letters only. “CONGRATULATIONS” in compact white all-caps sans serif above the headline; “COMMENCEMENT • 2026” in small white all-caps sans serif below. Keep generous clear margins, no people, no caps, no confetti, no extra words, professional 3D motion-graphics banner, frontal camera, crisp ray-traced reflections, high-resolution print-ready composition.