:root{--bg: #f4f7fb;--panel: #ffffff;--line: #e5ebf4;--text: #1f2d3d;--muted: #6f7d90;--blue: #1d6fff;--green: #26a269;--orange: #f59f00;--red: #e5484d;--purple: #7c3aed;--gold: #c88500;--sidebar: #172235;--sidebar-soft: #233149;font-family:Microsoft YaHei,PingFang SC,Hiragino Sans GB,Arial,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--bg);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button{cursor:pointer}.app-shell{display:grid;grid-template-columns:264px minmax(0,1fr);min-height:100vh;background:var(--bg)}.sidebar{position:sticky;top:0;display:flex;flex-direction:column;height:100vh;background:var(--sidebar);color:#dbe7fb}.brand{display:flex;align-items:center;gap:12px;height:72px;padding:0 22px;border-bottom:1px solid 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