@import"https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+JP:wght@400;500;600&family=Noto+Serif+JP:wght@500;600;700&display=swap";.banner[data-astro-cid-o4bgzrox]{background:var(--color-banner);color:#ffffffe6;padding:.8rem 1rem;font-size:.84rem;line-height:1.6}.banner[data-astro-cid-o4bgzrox] p[data-astro-cid-o4bgzrox]{width:min(calc(100% - 2rem),var(--max-width));margin:0 auto}.site-footer[data-astro-cid-sz7xmlte]{border-top:1px solid var(--color-line);padding:2.25rem 0 3rem}.footer-inner[data-astro-cid-sz7xmlte]{width:min(calc(100% - 2rem),var(--max-width));margin:0 auto;display:grid;gap:1rem}.footer-brand[data-astro-cid-sz7xmlte],.footer-copy[data-astro-cid-sz7xmlte]{margin:0;color:var(--color-accent);font-size:.82rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.footer-note[data-astro-cid-sz7xmlte]{margin:.4rem 0 0;color:var(--color-muted);font-size:.88rem}.footer-note[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--color-muted);text-decoration:underline;text-decoration-color:var(--color-line-strong);text-underline-offset:.18em}.footer-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--color-muted);text-decoration:none;transition:color .16s ease}.footer-note[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover,.footer-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--color-accent)}.footer-links[data-astro-cid-sz7xmlte]{margin:.7rem 0 0;display:flex;flex-wrap:wrap;gap:.4rem 1.1rem;font-size:.82rem}@media(min-width:720px){.footer-inner[data-astro-cid-sz7xmlte]{grid-template-columns:repeat(2,minmax(0,1fr));align-items:end}}.site-header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--color-line);background:#0f0c06db;backdrop-filter:blur(16px)}.header-inner[data-astro-cid-3ef6ksr2]{width:min(calc(100% - 2rem),var(--max-width));margin:0 auto;padding:1rem 0 1.1rem}.brand[data-astro-cid-3ef6ksr2]{display:inline-grid;gap:.15rem;text-decoration:none}.brand-kicker[data-astro-cid-3ef6ksr2]{color:var(--color-subtle);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase}.brand-name[data-astro-cid-3ef6ksr2]{font-family:var(--font-serif);font-size:clamp(1.3rem,3vw,2rem);line-height:1.1;letter-spacing:-.05em;color:var(--color-accent)}.site-nav[data-astro-cid-3ef6ksr2]{display:flex;gap:.55rem 1rem;overflow-x:auto;margin-top:1rem;padding-bottom:.15rem;white-space:nowrap}.nav-link[data-astro-cid-3ef6ksr2]{color:var(--color-muted);font-size:.88rem;text-decoration:none;transition:color .2s ease}.nav-link[data-astro-cid-3ef6ksr2]:hover,.nav-link[data-astro-cid-3ef6ksr2].active{color:var(--color-accent)}@media(min-width:960px){.header-inner[data-astro-cid-3ef6ksr2]{display:flex;align-items:end;justify-content:space-between;gap:2rem}.site-nav[data-astro-cid-3ef6ksr2]{justify-content:flex-end;margin-top:0;overflow:visible;flex-wrap:wrap}}:root{--color-bg: #100f0d;--color-surface: rgba(24, 23, 20, .72);--color-surface-strong: #1a1815;--color-ink: #ebe7de;--color-muted: #a8a39a;--color-subtle: #847f76;--color-line: rgba(231, 226, 216, .12);--color-line-strong: rgba(231, 226, 216, .22);--color-accent: #c6a35c;--color-accent-strong: #d8bd7e;--color-accent-soft: rgba(198, 163, 92, .12);--color-banner: #0b0a08;--shadow-soft: 0 18px 45px rgba(0, 0, 0, .55);--font-sans: "IBM Plex Sans JP", sans-serif;--font-serif: "Noto Serif JP", serif;--max-width: 76rem;--content-width: 44rem}*,*:before,*:after{box-sizing:border-box}html{background:var(--color-bg);color:var(--color-ink);scroll-behavior:smooth}body{margin:0;min-height:100vh;font-family:var(--font-sans);line-height:1.8;background:radial-gradient(circle at top left,rgba(198,163,92,.05),transparent 32rem),linear-gradient(180deg,#131210,#0d0c0a);background-attachment:fixed}a{color:inherit}img{display:block;max-width:100%}main{width:min(calc(100% - 2rem),var(--max-width));margin:0 auto;padding:2.5rem 0 5rem}.section-shell{background:var(--color-surface);border:1px solid var(--color-line);border-radius:1.5rem;box-shadow:var(--shadow-soft);backdrop-filter:blur(10px)}.eyebrow{margin:0;color:var(--color-subtle);font-size:.8rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase}.page-title{margin:0;font-family:var(--font-serif);font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.2;letter-spacing:-.04em}.page-lead{margin:0;color:var(--color-muted);font-size:1rem}.stack{display:grid;gap:1.5rem}.prose{width:min(100%,var(--content-width));font-size:1rem;color:var(--color-ink)}.prose h2,.prose h3{font-family:var(--font-serif);line-height:1.4;letter-spacing:-.02em;color:var(--color-ink)}.prose h2{margin:3rem 0 1rem;padding-top:1rem;border-top:1px solid var(--color-line);font-size:1.6rem}.prose h3{margin:2rem 0 .75rem;font-size:1.2rem}.prose p,.prose ul,.prose ol,.prose blockquote{margin:1.2rem 0 0}.prose ul,.prose ol{padding-left:1.3rem}.prose li+li{margin-top:.35rem}.prose blockquote{margin-left:0;padding:1rem 1.25rem;border-left:3px solid var(--color-accent);background:#cda85a12;border-radius:.8rem;color:var(--color-muted)}.prose a{color:var(--color-accent-strong);text-decoration-color:#cda85a80;text-underline-offset:.18em}.prose strong{color:var(--color-ink);font-weight:600}.prose table{width:100%;margin:1.6rem 0 0;border-collapse:collapse;border:1px solid var(--color-line);border-radius:.6rem;overflow:hidden;font-size:.92rem;line-height:1.7}.prose th,.prose td{padding:.6rem .95rem;text-align:left;vertical-align:top;border-bottom:1px solid var(--color-line)}.prose thead th{color:var(--color-ink);font-weight:600;border-bottom:1px solid var(--color-line-strong);background:var(--color-accent-soft);white-space:nowrap}.prose tbody td{color:var(--color-muted)}.prose tbody tr:last-child td{border-bottom:none}.grid-two{display:grid;gap:1.25rem}@media(min-width:800px){.grid-two{grid-template-columns:repeat(2,minmax(0,1fr))}}