"BEST COSTUME WINS $100" 是一张用于化装比赛的竖版快拍海报，风格深色而优雅。金色衬线大写字母带有雕刻般的金属光泽，堆叠在带黑色羽毛的黑金面具下方，黑色背景上配有纤细的装饰边框。你可以换成自己的奖金、日期和时间，或把标题改成其他活动文案来重新制作。

Create a finished 9:16 vertical Halloween costume-contest story graphic, designed for instant phone-screen reading. Commit to an elegant-gothic masquerade register: a deep matte-black velvet background with restrained antique-gold ornament, no gore, no extra lettering, no app interface, no logos, no QR codes. Keep the top and bottom edges open and uncluttered; place all key content within generous safe margins. In the middle band, show one ornate Venetian masquerade mask as the hero prop, centered above the headline. Build it from black enamel, chased antique-gold filigree, and a few fine black feathers; crisp carved edges, subtle gold-leaf highlights, realistic metal reflections. Add a sparse pair of thin engraved gold flourishes framing the central content, not competing with the text. Set the exact headline “BEST COSTUME WINS $100” in very large, perfectly legible custom high-contrast serif capitals, broad enough to read at thumbnail size. Use compact proportions, sturdy main strokes, sharp wedge serifs, open counters, and generous tracking. Render as raised antique-gold foil with fine brushed grain and a narrow dark bevel; no drips, cracks, glow, or letter distortion. Break only if needed for readability, keeping the phrase intact and dominant. Below it, set the exact detail line “Friday at 10 PM” in a smaller but clearly readable refined serif, centered, in flat warm gold. Maintain strong contrast against black and crisp letter edges. Composition: mask occupies the upper part of the central band; headline and detail line form a centered two-tier stack directly beneath it. Preserve generous black negative space above and below the middle-band composition. High-contrast studio lighting, controlled gold rim light on the mask, subtle velvet texture, clean premium print finish, sharp typography, no additional words.