:root{--ink:#101828;--ink-2:#344054;--muted:#667085;--line:#e4e7ec;--surface:#ffffff;--canvas:#f7f8fa;--accent:#2e5aac;--accent-soft:#eaf0fb;--danger:#b42318;--warn:#b54708;--ok:#027a48;--radius:10px;--shadow:0 1px 2px rgba(16,24,40,0.06),0 4px 16px rgba(16,24,40,0.06);--space:#05070d;--space-2:#0b1020;--star:#cfd8ff}*{box-sizing:border-box}body,html{margin:0;padding:0;height:100%}body{background:var(--canvas);color:var(--ink);font:15px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{margin:0 0 .4em;line-height:1.25;letter-spacing:-.01em}h1{font-size:24px}h2{font-size:19px}h3{font-size:16px}button{font:inherit}.shell{display:flex;flex-direction:column;height:100vh}.tabbar{display:flex;align-items:center;gap:8px;padding:0 16px;height:56px;background:var(--surface);border-bottom:1px solid var(--line);flex:0 0 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