“HAPPY BIRTHDAY”是使用 FontVibe AI 创作的3D 黄金文字效果。高级 3D 黄金金属质感文字，暖调浓郁，高光如镜面般闪亮。冠军气场、奢牌质感——适合 YouTube 横幅、生日贺卡、Discord 头图。

24-karat gold metallic surface — three-tone spectral gradient: deep amber-brown in shadow recesses, rich warm gold on lit faces, razor-thin champagne-white specular lines where direct light strikes. Single hard key light from upper-left at 45°, casting crisp directional shadows to lower-right. Background: near-black with faint warm amber ambient glow. No colored tints — pure dark void that forces the gold to own all luminosity in the frame. Square 1:1. 'HAPPY' on top line, 'BIRTHDAY' on second line — both in 3D gold luxury letterforms, stacked, centered, filling 75% of frame. Near-black background with a warm amber radial glow behind the letters — candle-warm light source from below. Key light upper-left: letter faces rich warm gold, recesses deep amber-brown, bevel edges blazing champagne-white. Faint gold confetti particles drifting near the letter edges — tiny, subtle. Polished dark floor below with faint gold mirror reflections. Birthday celebration energy — luxury, prestige, milestone. Scene context: Displayed as a digital wall art print on a large TV screen in a living room, surrounded by balloon decorations in gold and black. Warm party string lights are strung across the background. The golden text glows on the screen as guests gather for a surprise party. Intimate indoor celebration atmosphere.