“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. Luxury greeting card mockup — thick matte black card stock on dark marble surface, propped slightly open. Front cover: 'HAPPY BIRTHDAY' in gold foil hot-stamp, three-tone gold spectrum, champagne bevel specular catching light. Beside the card: a small gold envelope and dried rose petals. Soft directional studio light from upper-left. Premium birthday card — luxury stationery aesthetic.