:root{--paper:#f4f7f6;--surface:#fff;--ink:#172126;--muted:#66747a;--line:#d7dfdc;--green:#16815d;--green-soft:#e3f2ec;--amber:#c47718;--amber-soft:#f8ecdc;--red:#b43a3a;--red-soft:#fae7e7;--blue:#286c82;--blue-soft:#e1eef2;--sidebar:#172126;--radius:6px;color:var(--ink);background:var(--paper);font-family:Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body{background:var(--paper);min-height:100%;margin:0}body{letter-spacing:0;font-size:14px;line-height:1.55}button,input,select,textarea{font:inherit;letter-spacing:0}button{cursor:pointer}a{color:inherit;text-decoration:none}.mono,.metric,time{font-family:IBM Plex Mono,SFMono-Regular,Consolas,monospace}.shell{grid-template-columns:224px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{background:var(--sidebar);color:#eef5f2;flex-direction:column;height:100vh;padding:22px 14px;display:flex;position:sticky;top:0}.brand{border-bottom:1px solid #314047;align-items:center;gap:10px;padding:0 10px 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