「KEEPER 07」は FontVibe AI で作成したスポーツの文字エフェクトです。シルクスクリーンの粒子感を持つ太く縦長のクローム大文字。赤と青の縁取り光、背後には集中線を突き破る選手のシルエット。

Create a finished goalkeeper-kit back-number key art in vertical 3:4 format. Center a single cropped football goalkeeper jersey back, viewed straight-on from slightly below shoulder height, filling 78% of the canvas; structured matte-black technical fabric with subtle knitted mesh panels at the shoulders, no badge, no sponsor, no extra logos. Across the upper back, render the exact name “KEEPER” in small but forceful ultra-condensed black-weight uppercase lettering, tightly tracked, flat-cut terminals, white screen-print ink with fine halftone grain and slight real ink bleed into the fabric weave. Below it, make the exact number “07” the dominant element, occupying most of the shirt back: towering ultra-condensed heavy numerals with a height-to-width ratio above 3:1, minimal counters, flat-cut edges, dense white ink-on-fabric surface. A hard floodlight from upper-left produces razor-thin bright vertical highlight strips on the narrow number faces and a crisp pale rim along their upper-left edges; deep charcoal shadow falls on their lower-right edges. Keep ink opaque and printed on top of cloth, never illuminated from within. Stage the jersey against athletic arena darkness: near-black background, distant stadium floodlight beam from upper-left, barely visible suspended dust, and restrained thin speed lines radiating outward from directly behind the “07.” The speed lines remain behind the garment and never cross the wording. Add shallow fabric folds and controlled stitched seams to establish physical kit construction. High-contrast sports campaign photography, sharp central typography, dark negative space around the silhouette, screen-print texture visible at close range. No athlete face, no hands, no additional wording, no crest, no watermark, no mockup frame. Ensure all rendered text is exact and fully legible: “KEEPER” and “07”.