:root{--bg:#f6f7f9;--panel:#ffffff;--text:#1c2330;--muted:#6b7587;--border:#e2e6ec;--accent:#2563eb;--good:#16794c;--good-bg:#e6f6ee;--bad:#b3261e;--bad-bg:#fdecea;--info:#1d4ed8;--info-bg:#e8f0fe;--warn:#8a5a00;--topbar-h:53px}*{box-sizing:border-box}body,html{margin:0;background:var(--bg);color:var(--text)}body{font:14px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.topbar{position:-webkit-sticky;position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:16px;background:var(--panel);border-bottom:1px solid var(--border);padding:0 24px;height:var(--topbar-h)}.topbar .brand{font-size:18px;font-weight:700;color:var(--text);text-decoration:none;white-space:nowrap}.nav{display:flex;gap:6px;margin:0;flex:1 1;flex-wrap:nowrap;min-width:0;overflow-x:auto}.nav a{white-space:nowrap;flex-shrink:0;padding:5px 10px;border-radius:8px;color:var(--muted);text-decoration:none;border:1px solid var(--border);font-size:13px}.nav 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