「25」は FontVibe AI で作成したクリスタルの文字エフェクトです。純粋な宝石クリスタルから削り出した、ダイヤモンドカットのファセット面。鮮やかな虹色のプリズム分光と高級感あふれる輝きが特徴です。下面には集光模様が映し出されます。

carved from flawless gemstone crystal — each letterform cut with precision faceted geometry following brilliant-cut and emerald-cut diamond principles. Table facet, crown facets, girdle edge, pavilion facets all precisely rendered. Optically pure material: Brilliance (white light return), Fire (rainbow spectral dispersion), Scintillation (extreme facet contrast sparkle). Internal caustic corridors visible. Six-point sparkle flares at letter apexes. Maximum optical drama — every letter a dazzling cut precious gemstone. Square 1:1. 25 as precision gemstone-cut crystal letterforms centered at 78% frame width. Deep black-to-deep-crimson gradient background — the interior of a gemstone vault. Single hard overhead spotlight: crystal facets catch intense specular highlights, interior glows with deep ruby-red subsurface light. Each digit is a cut ruby gemstone — the deep crimson internal color illuminates the pavilion facets from within, while crown facets show brilliant white sparkle flares against the dark background. Six-point star sparkle at apex. Gemological photography quality — precious stone, museum-grade clarity.