:root{--ink:#17233c;--muted:#6f7a8d;--line:#dfe4ec;--soft:#f4f6fa;--accent:#0f766e;--accent2:#14b8a6;--danger:#b42318;--warn:#fff1e8;--navy:#101b35}*{box-sizing:border-box}body{margin:0;background:#e9edf3;color:var(--ink);font:14px/1.5 Inter,"Segoe UI","Microsoft YaHei",Arial,sans-serif}.topbar{height:68px;background:#fff;border-bottom:1px solid #dfe4ec;display:flex;align-items:center;justify-content:space-between;padding:0 26px;position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:11px}.brand-mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(145deg,var(--accent),var(--accent2));color:#fff;display:grid;place-items:center;font-weight:800;letter-spacing:-1px}.brand strong,.brand small{display:block}.brand strong{font-size:17px;line-height:1.1}.brand 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