"Curious Cosmos" 是一张科普频道的 YouTube 横幅，采用干净的太空风格。清晰的白色无衬线字和一行「把太空科学讲简单」的短句放在中央那一条，深蓝星空左边是旋涡星系，右边是一颗带环的小行星。可以换成你自己的频道名和主题。

Create a finished 16:9 YouTube channel banner at 2848 × 1600 px. Clean, minimal science-education identity on a full-bleed deep-space background: near-black navy with a restrained, soft indigo-and-teal nebula, sparse fine stars, and a small softly illuminated planet with a delicate orbital arc near the right side of the central safe area. Keep the background quiet behind the lettering; no borders, frames, social icons, handles, URLs, buttons, or additional text. Keep ALL readable text inside YouTube’s central safe band, approximately the middle 60% of the width and 29% of the height. Center the text block within this band. The headline is the unmistakable hero, set large and crisp in custom geometric sans-serif lettering: bold, broad proportions, consistent stroke weight, open counters, flat terminals, careful spacing, pure white matte fill, no outline, no bevel, no shadow, no glow. Render exactly: “Curious Cosmos”. Beneath it, with clear separation and smaller but phone-legible type, render exactly: “Space science, explained simply”. Use clean white sans-serif lettering with normal weight. Preserve exact spelling, capitalization, and punctuation. No other lettering. Leave generous negative space around both lines. Make the small planet and orbital arc secondary and unobtrusive, placed beside rather than behind the text. Use subtle atmospheric nebula light, restrained star points, clean tonal separation, and a smooth deep-space gradient. Extend the background edge to edge so the full TV frame remains finished, while all important text and focal imagery remain near the center for phone and desktop crops. High-resolution digital artwork, sharp typography, low visual clutter.