:root{--bg:#f8fafc;--panel:#ffffff;--fg:#111827;--muted:#6b7280;--line:#e5e7eb;--accent:#2563eb;--color-bg:var(--bg);--color-panel:var(--panel);--color-fg:var(--fg);--color-muted:var(--muted);--color-border:var(--line);--color-brand:var(--accent);--color-brand-fg:#ffffff;--color-danger:#dc2626}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Hiragino Kaku Gothic ProN,Meiryo,sans-serif;background:var(--bg);color:var(--fg);line-height:1.6}.wrap{max-width:960px;margin:0 auto;padding:32px 20px}.head{display:flex;align-items:center;justify-content:space-between;gap:12px}button.ghost{background:transparent;border:1px solid var(--line);color:var(--fg);border-radius:8px;padding:8px 14px;cursor:pointer}