:root{font-family:system-ui,"Microsoft YaHei",sans-serif;color:#e5e7eb;background:#11151b;color-scheme:dark}*{box-sizing:border-box}body{margin:0}main{max-width:1120px;margin:auto;padding:40px 24px}header{margin-bottom:28px}.eyebrow{color:#93bfae;font-size:12px;letter-spacing:3px}h1{font-size:clamp(26px,5vw,44px);margin:12px 0}header p,.guide p,footer{color:#a8b1bd;line-height:1.8}.workspace{background:#1b222c;border:1px solid #35404e;border-radius:20px;padding:20px}nav,.settings,.toolbar{display:flex;flex-wrap:wrap;gap:10px}button,select{font:inherit;border:1px solid #526172;border-radius:8px;padding:10px 14px;background:#293442;color:#edf1f5;cursor:pointer}button[aria-pressed="true"]{background:#b5dacb;color:#12251d;border-color:#b5dacb}button:hover{border-color:#cce8dd}button:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #8ee1c3;outline-offset:3px}.settings{margin:18px 0;align-items:center}.settings label{display:flex;align-items:center;gap:7px;font-size:14px}#stage{position:relative;height:320px;background:#000;overflow:hidden;border:1px solid #58616d}#pattern{width:100%;height:100%;display:flex}#pattern.vertical{flex-direction:column}.swatch{flex:1;min-width:0;min-height:0;display:flex;align-items:center;justify-content:center;font-size:11px;overflow:hidden}.swatch span{background:#0009;color:white;padding:3px}.patches{display:grid!important;grid-template-columns:repeat(8,1fr);grid-template-rows:1fr 1fr}.patches .swatch{border:8px solid #000}.patches .light{border-color:#fff}.gamma-pattern{display:grid!important;grid-template-columns:1fr 1fr}.checker{background:conic-gradient(#000 25%,#fff 0 50%,#000 0 75%,#fff 0);background-size:2px 2px}.text-pattern{display:grid!important;grid-template-columns:1fr 1fr}.text-sample{display:flex;flex-direction:column;justify-content:center;padding:20px;gap:14px}.text-sample p{margin:0}#hint,#status{font-size:14px;line-height:1.7}#hint{min-height:48px;color:#ccd7df}#status{color:#aab9b0}.extra label{display:flex;gap:12px;align-items:center;margin:15px 0}.extra label[hidden]{display:none}input[type=range]{width:min(220px,45vw)}details{border-top:1px solid #35404e;margin-top:18px;padding-top:16px}summary{cursor:pointer}textarea{display:block;width:100%;margin:12px 0;min-height:80px;background:#11151b;color:#fff;border:1px solid #526172;padding:12px;font:inherit}details p{font-size:13px;color:#a8b1bd}.guide{margin:28px 0}h2{font-size:21px}footer{font-size:13px}a{color:#a6d9c5}#overlay{position:absolute;bottom:18px;left:18px;background:#000b;color:white;padding:8px 12px;pointer-events:none;display:none}#exit{position:absolute;right:18px;top:18px}#stage:fullscreen,#stage.expanded{height:100vh;width:100vw;border:0}#stage.expanded{position:fixed;inset:0;z-index:9999}#stage:fullscreen #overlay,#stage.expanded #overlay{display:block}html[data-embedded=true]{background:transparent}html[data-embedded=true] main{padding:8px}html[data-embedded=true] header,html[data-embedded=true] .guide,html[data-embedded=true] footer{display:none}@media(max-width:540px){main{padding:24px 12px}.workspace{padding:12px;border-radius:12px}button,select{padding:9px;font-size:13px}#stage{height:280px}.swatch span{font-size:9px;padding:1px}.patches .swatch{border-width:4px}.text-sample{padding:10px}#hint{min-height:72px}}
:root .swatch{position:relative}.swatch span{white-space:nowrap}#pattern:not(.patches):not(.vertical) .swatch span{position:absolute;left:0}#pattern:not(.patches):not(.vertical) .swatch:last-child span{left:auto;right:0}
@media(max-width:540px){#pattern:not(.patches):not(.vertical) .swatch span{display:none}#pattern:not(.patches):not(.vertical) .swatch:nth-child(8n+1) span,#pattern:not(.patches):not(.vertical) .swatch:last-child span{display:block}}
:root #pattern:not(.patches):not(.vertical) .swatch{overflow:visible}:root #pattern:not(.patches):not(.vertical) .swatch span{display:block}