:root{font-family:Noto Sans KR,Apple SD Gothic Neo,sans-serif;color:#30343b;background:#f5f6f8;font-synthesis:none;--navy: #173f73;--blue: #2769aa;--blue-dark: #164f8b;--sky: #25b7e5;--ink: #30343b;--muted: #737983;--line: #d9dde3;--soft: #f4f6f8;--red: #b73a32}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:#fff}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}.app-shell{min-height:100vh;background:#fff}.brand-bar{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:linear-gradient(#f8fafc,#e8edf3);border-top:1px solid #c7d3df;border-bottom:1px solid #c3cbd6}.brand{display:flex;align-items:center;gap:12px;color:#1c477b}.brand-mark{display:grid;place-items:center;width:43px;height:43px;border-radius:50%;color:#fff;background:var(--navy);border:4px double #fff;outline:1px solid var(--navy);font-size:12px;font-weight:800}.brand 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