:root{--bg: #f6f7f9;--surface: #ffffff;--surface-2: #fbfbfc;--border: #e3e6ea;--border-strong: #cbd2da;--text: #14181d;--text-dim: #5b6672;--text-faint: #8b95a1;--accent: #2f6df6;--accent-soft: #e8effe;--ok: #0f8a5f;--ok-soft: #e2f5ec;--warn: #a4640a;--warn-soft: #fdf1dc;--danger: #c02b2b;--danger-soft: #fdeaea;--info-soft: #eef0f3;--radius: 8px;--radius-sm: 5px;--mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.55 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}button{font:inherit;cursor:pointer}input,textarea,select{font:inherit;color:inherit}.app{display:flex;flex-direction:column;height:100%}.topbar{display:flex;align-items:center;gap:20px;padding:0 20px;height:56px;background:var(--surface);border-bottom:1px solid 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