:root{--color-bg: #ffffff;--color-surface: #f7f7f8;--color-text: #111827;--color-subtle: #586174;--color-link: #3730a3;--color-primary: #4338ca;--color-primary-hover: #3730a3;--color-primary-alpha: rgba(79, 70, 229, .1);--color-primary-ink: #ffffff;--color-border: #e5e7eb;--color-control-border: #6b7280;--color-danger: #b42318;--color-danger-ink: #ffffff;--color-focus: #1d4ed8;--size-container: 72rem;--size-control-min: 44px;--radius-xs: 4px;--radius-sm: 6px;--radius-md: 10px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", Arial, sans-serif;--fs-1: 12px;--fs-2: 14px;--fs-3: 16px;--fs-4: 18px;--fs-5: 22px;--lh-tight: 1.25;--lh-normal: 1.5;--shadow-1: 0 1px 2px rgba(0, 0, 0, .06);--shadow-2: 0 4px 12px rgba(0, 0, 0, .1);--ease: cubic-bezier(.2, .8, .2, 1);--dur-fast: .12s;color-scheme:light}@media (prefers-color-scheme: dark){:root{--color-bg: #0f1419;--color-surface: #1a1f26;--color-text: #e4e7eb;--color-subtle: #b7c0cc;--color-link: #a5b4fc;--color-primary: #4f46e5;--color-primary-hover: #4338ca;--color-primary-alpha: rgba(99, 102, 241, .15);--color-primary-ink: #ffffff;--color-border: #374151;--color-control-border: #818b99;--color-danger: #f87171;--color-danger-ink: #111827;--color-focus: #60a5fa;--shadow-1: 0 1px 2px rgba(0, 0, 0, .3);--shadow-2: 0 4px 12px rgba(0, 0, 0, .4);color-scheme:dark}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}body{font-family:var(--font-sans);font-size:var(--fs-3);line-height:var(--lh-normal);color:var(--color-text);background-color:var(--color-bg);min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:var(--lh-tight);margin-bottom:var(--space-3)}h1{font-size:var(--fs-5)}h2{font-size:var(--fs-4)}h3{font-size:var(--fs-3)}p{margin-bottom:var(--space-3)}small{font-size:var(--fs-1)}.num{font-variant-numeric:tabular-nums slashed-zero}main{flex:1;padding-block:var(--space-6)}main section{margin-bottom:var(--space-6);padding:var(--space-6);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-1)}main section h2{margin-bottom:var(--space-4)}footer{border-top:1px solid var(--color-border);padding-block:var(--space-5);color:var(--color-subtle);font-size:var(--fs-2);text-align:center}:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px;border-radius:var(--radius-xs)}a{color:var(--color-link);text-decoration:none;transition:color var(--dur-fast) var(--ease)}a:hover{text-decoration:underline}.page-content a,footer a{text-decoration:underline}button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;color:inherit}button:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}button,input:not([type=hidden]),select,textarea,summary{min-height:var(--size-control-min)}.visually-hidden,.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}.page-identity,.page-content{max-width:var(--size-container);margin:1.5rem auto;padding:0 1rem}.page-content li{margin-bottom:1rem}html[data-session=open] .page-content{display:none}.site-header{border-bottom:1px solid var(--color-border);background:var(--color-bg);color:var(--color-text)}.site-header__inner{max-width:72rem;margin:0 auto;padding:1rem;display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 1.5rem}.site-header__brand{font-size:1.25rem;font-weight:700;text-decoration:none}.site-nav,.site-languages{display:flex;flex-wrap:wrap;gap:.3rem 1rem;align-items:center}.site-languages{margin-inline-start:auto}.site-header a{color:var(--color-text);padding:.35rem 0}.site-header a[aria-current=page]{text-decoration:underline;text-decoration-thickness:.14em;text-underline-offset:.25em}.site-header a:focus-visible,.site-footer a:focus-visible{outline:2px solid var(--color-focus);outline-offset:3px}.site-footer{border-top:1px solid var(--color-border);color:var(--color-text)}.site-footer a{color:var(--color-link)}@media (max-width: 40rem){.site-languages{margin-inline-start:0}}