*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-primary: #1a73e8;--color-primary-dark: #1557b0;--color-primary-light: #e8f0fe;--color-danger: #d32f2f;--color-danger-light: #fce8e6;--color-warning: #f9ab00;--color-warning-light: #fff8e1;--color-success: #188038;--color-success-light: #e6f4ea;--color-bg: #f0f4f8;--color-surface: #ffffff;--color-border: #e0e0e0;--color-text-primary: #1a1a2e;--color-text-secondary: #444;--color-text-muted: #666;--color-text-disabled: #999;--font-family: "Noto Sans JP", "Inter", system-ui, sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-6: 1.5rem;--space-8: 2rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 4px rgba(0, 0, 0, .06);--shadow-md: 0 2px 12px rgba(0, 0, 0, .08);--focus-ring: 0 0 0 3px rgba(26, 115, 232, .35)}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:var(--font-family);font-size:var(--font-size-base);color:var(--color-text-primary);background-color:var(--color-bg);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}:focus-visible{outline:none;box-shadow:var(--focus-ring)}button{font-family:var(--font-family);cursor:pointer}button:disabled{cursor:not-allowed;opacity:.6}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-bg)}::-webkit-scrollbar-thumb{background:silver;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#a0a0a0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}