:root{--blue:#09428f;--ink:#172033;--muted:#667085;--line:#e8ecf2;--bg:#f7f8fa;--surface:#fff;--critical:#c93637;--urgent:#bd6b16;--ok:#19734c}*{box-sizing:border-box}body,html{max-width:100vw;min-height:100%;margin:0;color:var(--ink);background:var(--bg);font-family:Arial,Microsoft YaHei,PingFang SC,sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.shell{min-height:100vh;display:flex}.sidebar{width:252px;flex:0 0 252px;padding:24px 14px;border-right:1px solid var(--line);background:#fff;position:-webkit-sticky;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:10px;padding:0 12px 28px;font-weight:700;color:var(--blue);letter-spacing:.15px}.brand-mark{display:grid;place-items:center;width:30px;height:30px;color:#fff;background:var(--blue);border-radius:9px;font-size:14px}.brand 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