:root{--bg: #f6f7f9;--panel: #ffffff;--ink: #1f2733;--ink-2: #5b6472;--ink-3: #98a1ae;--line: #e3e7ec;--accent: #5a67d8;--accent-soft: #eef0fd;--ok: #2f9e6e;--ok-soft: #e6f5ee;--warn: #b7791f;--warn-soft: #fdf3e0;--danger: #c0392b;--danger-soft: #fdeceb;--radius: 10px;--shadow: 0 1px 2px rgba(31, 39, 51, .06), 0 4px 16px rgba(31, 39, 51, .06)}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{font:14px/1.6 -apple-system,PingFang SC,Microsoft YaHei,sans-serif;color:var(--ink);background:var(--bg)}.shell{display:flex;height:100%}.sidebar{width:232px;flex:none;display:flex;flex-direction:column;background:#171c26;color:#cdd4e0;padding:18px 14px}.brand{display:flex;gap:10px;align-items:center;padding:4px 8px 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