:root{--bg:#f3f7fb;--panel:#fff;--ink:#0e2038;--muted:#70829a;--blue:#0878ef;--blue2:#0758b8;--green:#12a663;--amber:#e79a0c;--red:#df3d46;--line:#dce7f1;--nav:#11253a}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.45 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.shell{display:grid;grid-template-columns:190px minmax(0,1fr);min-height:100vh}.sidebar{background:linear-gradient(180deg,#132a41,#0d1e31);color:#d9e7f5;padding:26px 15px;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;padding:0 10px 28px;text-decoration:none}.brand-logo{display:block;width:126px;max-width:100%;height:auto;object-fit:contain;object-position:left center;filter:drop-shadow(0 5px 12px rgba(0,0,0,.16))}.sidebar nav{display:grid;gap:7px}.sidebar a{color:#b9cce0;text-decoration:none;padding:12px 13px;border-radius:10px;display:flex;gap:11px;align-items:center}.sidebar 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