:root{--ink:#182033;--muted:#69738a;--line:#e3e8f1;--soft:#f5f7fb;--panel:#fff;--navy:#10182b;--accent:#5b55e7;--accent-dark:#443dc7;--accent-soft:#eeedff;--green:#158467;--amber:#9a6500;--danger:#b54748;--shadow:0 18px 50px #19244514}*{box-sizing:border-box}html{background:var(--soft);scroll-behavior:smooth}body{color:var(--ink);background:var(--soft);margin:0;font-family:Inter,PingFang SC,PingFang HK,Noto Sans CJK SC,system-ui,sans-serif}a{color:inherit}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}code,pre{font-family:SFMono-Regular,Consolas,monospace}.app-shell{min-height:100vh}.sidebar{color:#d9deeb;background:var(--navy);z-index:10;flex-direction:column;width:248px;padding:28px 20px;display:flex;position:fixed;inset:0 auto 0 0}.brand{color:#fff;border-bottom:1px solid #ffffff17;align-items:center;gap:12px;padding:0 8px 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