:root{color-scheme:light dark;--brand-teal:#198897;--surface-base:#121212;--surface-raised:#1e1e1e;--surface-sunken:#0a0a0a;--text-primary:#fff;--text-secondary:#e0e0e0;--text-tertiary:#c4c4c4;--text-muted:#8e8e8e;--accent:var(--brand-teal);--accent-link:#80deea;--accent-solid:var(--brand-teal);--accent-on-solid:#121212;--accent-subtle:#1988971f;--border-default:#6e6e6e;--border-strong:#8e8e8e;--border-subtle:#3a3a3a;--focus-inner:#121212;--focus-outer:var(--brand-teal);--focus-width:3px;--focus-offset:2px;--font-sans:-apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", "Yu Gothic Medium", "Meiryo", sans-serif;--fs-h1:2rem;--fs-h2:1.5rem;--fs-h3:1.25rem;--fs-lead:1.125rem;--fs-body:1rem;--fs-caption:.875rem;--fs-label:.875rem;--lh-heading:1.3;--lh-body:1.7;--lh-caption:1.6;--ls-body:.01em;--ls-label:.08em;--fw-normal:400;--fw-medium:500;--fw-bold:700;--measure:44rem;--space-2xs:.25rem;--space-xs:.5rem;--space-sm:.75rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:4.5rem;--radius-sm:2px;--radius-md:8px;--radius-lg:12px;--tap-min:44px}@media (prefers-color-scheme:light){:root{--surface-base:#f7f9fa;--surface-raised:#fff;--surface-sunken:#edf1f3;--text-primary:#12181a;--text-secondary:#2e3a3d;--text-tertiary:#48585c;--text-muted:#5c6e73;--accent:#0a525c;--accent-link:#004852;--accent-solid:#00636e;--accent-on-solid:#fff;--accent-subtle:#00636e1a;--border-default:#6e8085;--border-strong:#5c6e73;--border-subtle:#dce3e6;--focus-inner:#fff;--focus-outer:#00636e}}html{-webkit-text-size-adjust:100%;font-size:100%}body{background-color:var(--surface-base);color:var(--text-primary);font-family:var(--font-sans);font-size:var(--fs-body);font-weight:var(--fw-normal);line-height:var(--lh-body);letter-spacing:var(--ls-body);margin:0}h1,h2,h3,h4,h5,h6{font-weight:var(--fw-bold);line-height:var(--lh-heading)}:focus-visible{outline:var(--focus-width) solid var(--focus-outer);outline-offset:var(--focus-offset);box-shadow:0 0 0 var(--focus-offset) var(--focus-inner);border-radius:inherit}:focus:not(:focus-visible){outline:none}:target,[id]{scroll-margin-top:calc(var(--header-h,72px) + var(--space-md))}a{color:var(--accent-link);text-underline-offset:.2em;text-decoration-thickness:.08em}a:hover{text-decoration-thickness:.14em}.visually-hidden{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{left:var(--space-md);top:calc(-1 * var(--tap-min) - var(--space-lg));z-index:100;min-height:var(--tap-min);padding:var(--space-xs) var(--space-md);background-color:var(--surface-raised);color:var(--text-primary);border:2px solid var(--border-strong);border-radius:var(--radius-md);align-items:center;text-decoration:none;transition:top .15s;display:inline-flex;position:absolute}.skip-link:focus{top:var(--space-md)}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media (prefers-contrast:more){:root{--border-default:var(--border-strong);--text-muted:var(--text-tertiary)}}@media (forced-colors:active){:focus-visible{outline-offset:2px;outline:3px solid canvastext}}*,:before,:after{box-sizing:border-box}.wrap{width:100%;max-width:calc(var(--measure) + var(--space-xl) * 2);padding-inline:var(--space-lg);margin-inline:auto}@media (width>=48rem){.wrap{padding-inline:var(--space-xl)}}.nb{display:inline-block}.site-header{z-index:50;border-bottom:1px solid var(--border-subtle);padding-block:var(--space-sm);background:var(--surface-base);position:sticky;top:0}.site-header .wrap{gap:var(--space-xs) var(--space-lg);flex-wrap:wrap;justify-content:space-between;align-items:center;display:flex}.brand{min-height:var(--tap-min);color:var(--text-primary);align-items:center;text-decoration:none;display:inline-flex}.site-nav ul{gap:0 var(--space-lg);flex-wrap:wrap;margin:0;padding:0;list-style:none;display:flex}.site-nav a{min-height:var(--tap-min);color:var(--text-secondary);align-items:center;text-decoration:none;display:inline-flex}.site-nav a:hover{color:var(--text-primary);text-decoration:underline}.site-footer{margin-top:var(--space-3xl);border-top:1px solid var(--border-subtle);padding-block:var(--space-xl);background:var(--surface-raised)}.footer-links ul{gap:0 var(--space-lg);flex-wrap:wrap;margin:0;padding:0;list-style:none;display:flex}.footer-links a{min-height:var(--tap-min);align-items:center;display:inline-flex}.copyright{margin:var(--space-sm) 0 0;color:var(--text-tertiary);font-size:var(--fs-caption)}.ext-note{margin-left:var(--space-xs);color:var(--text-tertiary);white-space:nowrap}.logo[data-astro-cid-f7espo7c]{align-items:center;display:inline-flex}.logo-image[data-astro-cid-f7espo7c]{width:10rem;height:2rem;display:block}.sym[data-astro-cid-f7espo7c],.word[data-astro-cid-f7espo7c]{fill:#fff}@media (prefers-color-scheme:light){.sym[data-astro-cid-f7espo7c]{fill:#198897}.word[data-astro-cid-f7espo7c]{fill:#121212}}