“ios 28”是使用 FontVibe AI 创作的玻璃文字效果。透明光学玻璃大写字母折射光线，边缘高光明亮并带焦散，倒映在深色台面上，背景是青绿色极光夜空。

Create a square 1:1 typographic hero graphic, with the exact text “ios 28” and no other lettering. Center the lowercase “ios” and numerals “28” as one carefully spaced wordmark, occupying about 76% of the canvas width. Give the glyphs a refined display skeleton: broad, clean forms, smooth curves, open counters, even stroke weight, and precise optical alignment. Construct every letter from solid, high-clarity transparent optical crystal, with visible internal depth, parallel cut facets along the edges, slight refractive distortion through the letter bodies, and fine rainbow dispersion only at extreme angles. Bright specular highlights trace the glass thickness transitions; concentrated caustic flecks fall onto the surface beneath the lettering. Keep the letter material clear and untinted, not milky or frosted. Behind the wordmark, place a restrained, oversized transparent glass halo or rounded crystal frame, partially occluded by the text and kept low-contrast so it does not interfere with reading. Stage everything against a softly diffused lavender-blue studio background with gentle frosted-glass light diffusion, pale reflective ground, and subtle soft caustic patterns. Use crisp crystal highlights against the diffused environment, ray-traced refraction, realistic reflections, restrained bloom, clean negative space, and high-end product-render detail. No extra symbols, interface icons, labels, or text.