:root{--color-primary:#0d2b4e;--color-primary-dark:#081d36;--color-primary-light:#17457a;--color-accent:#f5a300;--color-accent-dark:#d48c00;--color-text:#1b2430;--color-text-muted:#4d5a6b;--color-text-inverse:#fff;--color-link:#0a58b8;--color-bg:#fff;--color-bg-muted:#f1f4f8;--color-border:#d3dbe5;--color-focus:#0a58b8;--font-sans:"Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "BIZ UDPGothic", Meiryo, system-ui, sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--font-size-sm:.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:clamp(1.375rem, 1.15rem + 1vw, 1.75rem);--font-size-2xl:clamp(1.75rem, 1.35rem + 2vw, 2.5rem);--font-size-hero:clamp(2rem, 1.25rem + 3.5vw, 3.5rem);--line-height:1.8;--line-height-tight:1.4;--space-xs:.25rem;--space-sm:.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2.5rem;--space-2xl:4rem;--gutter:clamp(1rem, 4vw, 2rem);--width-container:72rem;--width-text:46rem;--radius:.375rem;--shadow:0 1px 2px #0d2b4e14, 0 6px 16px #0d2b4e14;--grid-pattern:linear-gradient(#ffffff0f 1px, transparent 1px), linear-gradient(90deg, #ffffff0f 1px, transparent 1px);--grid-size:2rem 2rem}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}body{min-height:100vh;font-family:var(--font-sans);font-size:var(--font-size-base);line-height:var(--line-height);color:var(--color-text);background:var(--color-bg);overflow-wrap:break-word;flex-direction:column;margin:0;display:flex}main{flex:1}h1,h2,h3,h4{line-height:var(--line-height-tight);font-feature-settings:"palt";letter-spacing:.02em;word-break:auto-phrase;margin:0;font-weight:700}p{margin:0}a{color:var(--color-link);text-underline-offset:.2em}a:hover{text-decoration-thickness:2px}:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px}img,svg{max-width:100%;height:auto}img{display:block}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.container{width:100%;max-width:calc(var(--width-container) + var(--gutter) * 2);padding-inline:var(--gutter);margin-inline:auto}.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{top:var(--space-sm);left:var(--space-sm);z-index:100;padding:var(--space-sm) var(--space-md);background:var(--color-bg);color:var(--color-link);font-weight:700;position:absolute;transform:translateY(-200%)}.skip-link:focus{transform:none}.button{border:2px solid var(--color-accent);border-radius:var(--radius);background:var(--color-accent);min-height:3rem;color:var(--color-text);justify-content:center;align-items:center;gap:.5em;padding:.6em 1.5em;font-weight:700;line-height:1.4;text-decoration:none;transition:background-color .15s,border-color .15s;display:inline-flex}.button:hover{background:var(--color-accent-dark);border-color:var(--color-accent-dark)}.button:after{content:"→";font-weight:400}.button--outline{color:var(--color-text-inverse);background:0 0;border-color:currentColor}.button--outline:hover{background:#ffffff1f;border-color:currentColor}.section{padding-block:var(--space-2xl)}.section--muted{background:var(--color-bg-muted)}main>.section:not(.section--muted):last-child{padding-bottom:0}.badge{background:var(--color-primary);color:var(--color-text-inverse);font-size:var(--font-size-sm);border-radius:999px;padding:0 .6em;font-weight:700;line-height:1.8;display:inline-block}.badge--draft{background:#b3261e}.prose{max-width:var(--width-text)}.prose>*{margin-block:0}.prose>*+*{margin-block-start:1.25em}.prose h2{border-bottom:2px solid var(--color-border);font-size:var(--font-size-xl);margin-block-start:2.5em;padding-bottom:.4em;position:relative}.prose h2:after{content:"";background:var(--color-accent);width:3em;height:2px;position:absolute;bottom:-2px;left:0}.prose h3{border-left:4px solid var(--color-primary);font-size:var(--font-size-lg);margin-block-start:2em;padding-left:.6em}.prose>:first-child{margin-block-start:0}.prose ul,.prose ol{padding-left:1.5em}.prose li+li{margin-top:.25em}.prose table{border-collapse:collapse;width:100%;font-size:var(--font-size-sm)}.prose th,.prose td{border:1px solid var(--color-border);text-align:left;vertical-align:top;padding:.5em .75em}.prose th{background:var(--color-bg-muted)}.prose blockquote{border-left:4px solid var(--color-accent);background:var(--color-bg-muted);margin-inline:0;padding:.75em 1em}.prose code{background:var(--color-bg-muted);font-family:var(--font-mono);border-radius:.25rem;padding:.1em .35em;font-size:.9em}.prose pre{border-radius:var(--radius);font-size:var(--font-size-sm);padding:1em;line-height:1.6;overflow-x:auto}.prose pre code{font-size:inherit;background:0 0;padding:0}.prose img{border-radius:var(--radius)}.prose hr{border:0;border-top:1px solid var(--color-border)}.site-footer[data-astro-cid-jo6i4kqk]{margin-top:var(--space-2xl);padding-block:var(--space-xl) var(--space-lg);background:var(--color-primary-dark);color:var(--color-text-inverse);border-top:4px solid var(--color-accent);--color-focus:var(--color-accent)}.footer-inner[data-astro-cid-jo6i4kqk]{gap:var(--space-lg);display:grid}.site-footer[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]{color:inherit}.footer-brand[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]{font-size:var(--font-size-lg);letter-spacing:.04em;font-weight:700;text-decoration:none}.footer-nav[data-astro-cid-jo6i4kqk],.footer-sns[data-astro-cid-jo6i4kqk] ul[data-astro-cid-jo6i4kqk]{gap:var(--space-xs) var(--space-lg);flex-wrap:wrap;margin:0;padding:0;list-style:none;display:flex}.footer-nav[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk],.footer-sns[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]{padding-block:var(--space-xs);display:inline-block}.footer-heading[data-astro-cid-jo6i4kqk]{margin-bottom:var(--space-xs);font-size:var(--font-size-sm);letter-spacing:.1em;color:var(--color-accent)}.copyright[data-astro-cid-jo6i4kqk]{padding-top:var(--space-lg);color:#fffc;border-top:1px solid #ffffff26}.site-header[data-astro-cid-nen7h5rs]{z-index:10;background:var(--color-primary);color:var(--color-text-inverse);border-bottom:4px solid var(--color-accent);--color-focus:var(--color-accent);position:relative}.header-inner[data-astro-cid-nen7h5rs]{justify-content:space-between;align-items:center;gap:var(--space-sm) var(--space-lg);flex-wrap:wrap;min-height:4rem;display:flex}.site-logo[data-astro-cid-nen7h5rs]{align-items:center;gap:var(--space-sm);min-width:0;padding-block:var(--space-sm);color:inherit;font-size:var(--font-size-lg);letter-spacing:.04em;flex:1 1 0;font-weight:700;line-height:1.3;text-decoration:none;display:flex}.site-logo[data-astro-cid-nen7h5rs] span[data-astro-cid-nen7h5rs]{word-break:keep-all;overflow-wrap:anywhere;max-width:max-content}.site-logo[data-astro-cid-nen7h5rs] img[data-astro-cid-nen7h5rs]{border-radius:.25rem;flex-shrink:0}.menu-button[data-astro-cid-nen7h5rs]{display:none}.site-nav[data-astro-cid-nen7h5rs] ul[data-astro-cid-nen7h5rs]{gap:0 var(--space-lg);flex-wrap:wrap;margin:0;padding:0;list-style:none;display:flex}.site-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{padding-block:var(--space-sm);color:inherit;border-bottom:3px solid #0000;font-weight:700;text-decoration:none;display:block}.site-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]:hover{border-bottom-color:#ffffff80}.site-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs][aria-current=page]{border-bottom-color:var(--color-accent)}@media (width<=52rem){.header-inner[data-astro-cid-nen7h5rs]{column-gap:var(--space-sm)}.site-logo[data-astro-cid-nen7h5rs]{font-size:.9375rem}.js .menu-button[data-astro-cid-nen7h5rs]{align-items:center;gap:var(--space-sm);min-height:2.75rem;padding:0 var(--space-md);border-radius:var(--radius);color:inherit;font:inherit;font-size:var(--font-size-sm);cursor:pointer;background:0 0;border:2px solid #fff9;flex-shrink:0;font-weight:700;display:inline-flex}.menu-icon[data-astro-cid-nen7h5rs],.menu-icon[data-astro-cid-nen7h5rs]:before,.menu-icon[data-astro-cid-nen7h5rs]:after{background:currentColor;width:1.25rem;height:2px;transition:transform .2s;display:block}.menu-icon[data-astro-cid-nen7h5rs]{position:relative}.menu-icon[data-astro-cid-nen7h5rs]:before,.menu-icon[data-astro-cid-nen7h5rs]:after{content:"";position:absolute;left:0}.menu-icon[data-astro-cid-nen7h5rs]:before{top:-6px}.menu-icon[data-astro-cid-nen7h5rs]:after{top:6px}.menu-button[data-astro-cid-nen7h5rs][aria-expanded=true] .menu-icon[data-astro-cid-nen7h5rs]{background:0 0}.menu-button[data-astro-cid-nen7h5rs][aria-expanded=true] .menu-icon[data-astro-cid-nen7h5rs]:before{transform:translateY(6px)rotate(45deg)}.menu-button[data-astro-cid-nen7h5rs][aria-expanded=true] .menu-icon[data-astro-cid-nen7h5rs]:after{transform:translateY(-6px)rotate(-45deg)}.site-nav[data-astro-cid-nen7h5rs]{width:100%}.js .menu-button[data-astro-cid-nen7h5rs][aria-expanded=false]+.site-nav[data-astro-cid-nen7h5rs]{display:none}.site-nav[data-astro-cid-nen7h5rs] ul[data-astro-cid-nen7h5rs]{padding-bottom:var(--space-md);flex-direction:column}.site-nav[data-astro-cid-nen7h5rs] li[data-astro-cid-nen7h5rs]+li[data-astro-cid-nen7h5rs]{border-top:1px solid #ffffff26}.site-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{padding-block:var(--space-md);padding-left:var(--space-md);border-bottom:0;border-left:4px solid #0000}.site-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs][aria-current=page]{border-left-color:var(--color-accent)}}