:root{--bg:#f7f8fb;--surface:#ffffff;--surface-muted:#fafbfe;--text:#232b3a;--muted:#8a93a5;--line:#e4e8f0;--line-strong:#d7dde8;--brand:#5448e5;--brand-soft:#f2f0ff;--brand-deep:#4338ca;--accent:#19a36f;--accent-soft:#f0fbf6;--warn:#d97706;--warn-soft:#fff7eb;--danger:#ef4444;--shadow:0 4px 16px rgba(22,31,52,0.05);--radius:14px;--radius-sm:9px}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font:13px/1.45 Noto Sans JP,sans-serif}button,input,select,textarea{font:inherit}button{border:1px solid transparent;border-radius:8px;background:var(--brand);color:#fff;padding:10px 14px;font-size:12px;font-weight:700;cursor:pointer;transition:background .14s ease,border-color .14s ease,color .14s 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