@charset "UTF-8";:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-surface: #ffffff;--color-surface-secondary: #f8fafc;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-muted: #64748b;--color-danger: #ef4444;--color-success: #22c55e;--sidebar-width: 240px;--list-width: 300px;--border-radius: 8px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1)}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif;font-size:14px;color:var(--color-text);background:var(--color-surface);-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}button{cursor:pointer;border:none;background:none;font-family:inherit;font-size:inherit}input,textarea{font-family:inherit;font-size:inherit}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}