:root{--bg:#05070a;--panel:rgba(14,18,23,.76);--line:rgba(255,255,255,.12);--muted:#89929d;--white:#f4f5f2;--accent:#c8ff3d;--cyan:#58d6d3}*{box-sizing:border-box}html{background:var(--bg);color:var(--white);font-family:Inter,'Noto Sans JP',sans-serif}body{margin:0;min-height:100vh;overflow-x:hidden;background:radial-gradient(circle at 69% 28%,#143637 0,transparent 28%),radial-gradient(circle at 20% 18%,#18201b 0,transparent 25%),linear-gradient(#07090c,#050608 76%)}body:before{content:"";position:fixed;inset:0;background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(to bottom,black,transparent 82%);pointer-events:none}.noise{position:fixed;inset:0;opacity:.035;pointer-events:none;z-index:10;background:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' 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