“SO MUCH FUN LET’S CELEBRATE! GOOD TIMES · BIG SMILES”是使用 FontVibe AI 创作的彩虹文字效果。绚丽的多彩虹色渐变文字特效，色彩过渡顺滑，棱镜般的光泽与欢快的多彩排版。

Create a finished wide 16:9 party banner, print-ready horizontal composition. Exact rendered text, with strict hierarchy: 1. Main headline, centered across 88% of the width in two lines: “SO MUCH” / “FUN” 2. Small curved top line: “LET’S CELEBRATE!” 3. Small bottom line: “GOOD TIMES · BIG SMILES” The headline is the centerpiece: giant extra-wide, bold rounded bubble letters with tight but readable spacing, each character individually containing a complete vertical ROYGBIV gradient: red at its top edge, orange upper zone, yellow and green at the midpoint, blue and indigo lower zone, violet along its bottom edge. Do not assign a single color to each letter and do not run one gradient across the entire phrase. Build each letter as a spherically inflated 3D balloon with ultra-glossy candy-lacquer skin, rounded hemisphere terminals, thick convex volume, clean silhouette, tiny circular near-white specular highlight at every upper-facing apex, soft colored reflected light between neighboring letters, and shallow soft shadows beneath. “FUN” is 20% larger than “SO MUCH.” Place the small top line in white rounded uppercase lettering, arched above the headline. Put the bottom line in compact white uppercase lettering on a violet rounded ribbon below; keep all small copy crisp and highly legible. Background: bright cyan-blue sky gradient, warm sunlight from upper right, soft golden string-light bokeh, scattered glossy balloons at far left and right edges, and dense floating confetti in red, orange, yellow, green, blue, violet. Keep the center behind the title clean enough for strong contrast. Add a thin white outer contour around the headline and a pale lavender drop shadow for separation. High-key studio-meets-outdoor party lighting, ray-traced glossy reflections, clean vector-like edges, 3D product render detail, no extra words, no warped or misspelled text.