:root{--font-sans:"Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", "Yu Gothic Medium", "Yu Gothic", YuGothic, Meiryo, system-ui, -apple-system, "Segoe UI", sans-serif;--font-serif:"Hiragino Mincho ProN", "Hiragino Mincho Pro", "Yu Mincho", YuMincho, "Noto Serif JP", "MS PMincho", serif;--c-ink:#1a2233;--c-ink-soft:#4a5568;--c-muted:#6b7280;--c-line:#e2e6ee;--c-bg:#fff;--c-bg-soft:#f6f8fb;--c-brand:#123a6b;--c-brand-dark:#0d2a4e;--c-accent:#9a7b3f;--w-page:1080px;--w-prose:720px;--radius:8px}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{background:var(--c-bg);color:var(--c-ink);font-family:var(--font-sans);letter-spacing:.02em;font-feature-settings:"palt" 1;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;flex-direction:column;min-height:100vh;margin:0;font-size:16px;line-height:1.9;display:flex}main{flex:1 0 auto}img,svg,video{max-width:100%;height:auto;display:block}a{color:var(--c-brand);text-underline-offset:.2em}a:hover{color:var(--c-accent)}h1,h2,h3,h4{font-family:var(--font-serif);letter-spacing:.01em;color:var(--c-ink);word-break:auto-phrase;text-wrap:balance;font-weight:600;line-height:1.5}h1{margin:0 0 .6em;font-size:clamp(1.6rem,1.15rem + 1.8vw,2.25rem)}h2{border-bottom:2px solid var(--c-line);margin:2.4em 0 .9em;padding-bottom:.4em;font-size:clamp(1.3rem,1.1rem + .9vw,1.6rem)}h3{border-left:4px solid var(--c-brand);margin:2em 0 .7em;padding-left:.6em;font-size:clamp(1.1rem,1.03rem + .4vw,1.25rem)}p{margin:0 0 1.4em}ul,ol{margin:0 0 1.4em;padding-left:1.5em}li{margin-bottom:.4em}hr{border:0;border-top:1px solid var(--c-line);margin:2.5em 0}blockquote{border-left:4px solid var(--c-line);color:var(--c-ink-soft);background:var(--c-bg-soft);margin:0 0 1.4em;padding:.4em 1.2em}code{background:var(--c-bg-soft);border-radius:4px;padding:.15em .4em;font-family:ui-monospace,SFMono-Regular,Consolas,Courier New,monospace;font-size:.9em}pre{border-radius:var(--radius);border:1px solid var(--c-line);padding:1em 1.2em;overflow-x:auto}pre code{background:0 0;padding:0}table{border-collapse:collapse;width:100%;margin:0 0 1.6em;font-size:.95rem}th,td{border:1px solid var(--c-line);text-align:left;vertical-align:top;padding:.7em .9em}th{background:var(--c-bg-soft);white-space:nowrap;font-weight:600}.table-scroll{margin-bottom:1.6em;overflow-x:auto}.table-scroll table{margin-bottom:0}:focus-visible{outline:3px solid var(--c-accent);outline-offset:2px}.container{width:100%;max-width:var(--w-page);margin-inline:auto;padding-inline:20px}.prose{max-width:var(--w-prose)}.section{padding-block:clamp(2.5rem,1.5rem + 3vw,4.5rem)}.section--soft{background:var(--c-bg-soft)}.lead{color:var(--c-ink-soft);font-size:1.05rem}.btn{border-radius:var(--radius);background:var(--c-brand);color:#fff;border:2px solid var(--c-brand);padding:.85em 2em;font-weight:600;text-decoration:none;transition:background-color .15s;display:inline-block}.btn:hover{background:var(--c-brand-dark);border-color:var(--c-brand-dark);color:#fff}.btn--ghost{color:var(--c-brand);background:0 0}.btn--ghost:hover{background:var(--c-brand);color:#fff}.card-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.25rem;margin:0;padding:0;list-style:none;display:grid}.card{border:1px solid var(--c-line);border-radius:var(--radius);background:#fff;margin:0;padding:1.4rem 1.5rem}.card h3{border-left:none;margin-top:0;padding-left:0}.tag-list{flex-wrap:wrap;gap:.5em;margin:0;padding:0;list-style:none;display:flex}.tag{border:1px solid var(--c-line);background:var(--c-bg-soft);color:var(--c-ink-soft);border-radius:999px;padding:.2em .8em;font-size:.8rem;line-height:1.6;text-decoration:none;display:inline-block}a.tag:hover{background:var(--c-brand);border-color:var(--c-brand);color:#fff}.meta{color:var(--c-muted);letter-spacing:.04em;font-size:.875rem}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition-duration:.01ms!important}}@media print{.site-header,.site-footer,.breadcrumbs{display:none}}.block{margin:1.2em 0}.block>:last-child{margin-bottom:0}.block--note{color:var(--c-muted);font-size:.85rem;line-height:1.8}.block--note p{margin-bottom:.5em}.block--box{border:1px solid var(--c-line);border-left:4px solid var(--c-brand);border-radius:var(--radius);background:var(--c-bg-soft);padding:1em 1.3em;font-size:.95rem}.skip-link[data-astro-cid-nen7h5rs]{z-index:100;background:#fff;padding:.6em 1em;position:absolute;top:0;left:-9999px}.skip-link[data-astro-cid-nen7h5rs]:focus{left:0}.site-header[data-astro-cid-nen7h5rs]{border-bottom:1px solid var(--c-line);background:#fff}.header-top[data-astro-cid-nen7h5rs]{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem 2rem;padding-block:.9rem;display:flex}.brand[data-astro-cid-nen7h5rs]{margin:0}.brand[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{color:inherit;align-items:center;gap:.7rem;text-decoration:none;display:flex}.brand-logo[data-astro-cid-nen7h5rs]{object-fit:contain;flex:none;width:auto;max-width:120px;height:48px}.brand-text[data-astro-cid-nen7h5rs]{display:block}.brand-name[data-astro-cid-nen7h5rs]{font-family:var(--font-serif);color:var(--c-brand);font-size:1.25rem;font-weight:600;line-height:1.4;display:block}.brand-title[data-astro-cid-nen7h5rs]{letter-spacing:.1em;color:var(--c-ink-soft);margin-left:.5em;font-size:.8rem}.brand-firm[data-astro-cid-nen7h5rs]{color:var(--c-muted);letter-spacing:.04em;font-size:.72rem;line-height:1.5;display:block}.header-cta[data-astro-cid-nen7h5rs]{align-items:center;gap:.9rem;margin:0;display:flex}.header-cta__note[data-astro-cid-nen7h5rs]{color:var(--c-muted);letter-spacing:.04em;font-size:.72rem}.header-btn[data-astro-cid-nen7h5rs]{white-space:nowrap;padding:.7em 1.6em;font-size:.9rem}.site-nav[data-astro-cid-nen7h5rs]{background:var(--c-brand)}.site-nav[data-astro-cid-nen7h5rs] ul[data-astro-cid-nen7h5rs]{flex-wrap:wrap;margin:0;padding:0;list-style:none;display:flex}.site-nav[data-astro-cid-nen7h5rs] li[data-astro-cid-nen7h5rs]{margin:0}.site-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{color:#e8eef7;border-bottom:3px solid #0000;padding:.75em 1.35em;font-size:.92rem;font-weight:500;text-decoration:none;display:block}.site-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]:hover{background:var(--c-brand-dark);color:#fff}.site-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs][aria-current=page]{color:#fff;border-bottom-color:var(--c-accent)}@media (width<=860px){.header-top[data-astro-cid-nen7h5rs]{padding-block:.7rem}.brand-name[data-astro-cid-nen7h5rs]{font-size:1.1rem}.header-cta[data-astro-cid-nen7h5rs]{justify-content:flex-start;gap:.7rem;width:100%}.header-btn[data-astro-cid-nen7h5rs]{padding:.65em 1.1em;font-size:.85rem}.site-nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{padding:.65em .7rem;font-size:.85rem}}@media (width<=420px){.header-cta[data-astro-cid-nen7h5rs]{text-align:center;flex-direction:column;align-items:stretch;gap:.4rem}.header-btn[data-astro-cid-nen7h5rs]{text-align:center}}.site-footer[data-astro-cid-jo6i4kqk]{background:var(--c-brand-dark);color:#ccd6e6;font-size:.88rem}.site-footer[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]{color:#fff;text-decoration:none}.site-footer[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]:hover{text-decoration:underline}.footer-inner[data-astro-cid-jo6i4kqk]{flex-wrap:wrap;justify-content:space-between;gap:2rem 3rem;padding-block:2.5rem;display:flex}.footer-name[data-astro-cid-jo6i4kqk]{font-family:var(--font-serif);color:#fff;margin:0 0 .7em;font-size:1.15rem}.footer-name[data-astro-cid-jo6i4kqk] span[data-astro-cid-jo6i4kqk]{letter-spacing:.1em;color:#a9b6cb;margin-left:.6em;font-size:.75rem}.footer-contact[data-astro-cid-jo6i4kqk]{margin:0;font-size:.85rem}.footer-nav[data-astro-cid-jo6i4kqk] ul[data-astro-cid-jo6i4kqk]{grid-template-columns:repeat(2,minmax(8rem,auto));gap:.3rem 2.5rem;margin:0;padding:0;list-style:none;display:grid}.footer-nav[data-astro-cid-jo6i4kqk] li[data-astro-cid-jo6i4kqk]{margin:0}.copyright[data-astro-cid-jo6i4kqk]{text-align:center;color:#94a3bb;border-top:1px solid #ffffff26;margin:0;padding:1rem 20px;font-size:.75rem}@media (width<=640px){.footer-inner[data-astro-cid-jo6i4kqk]{padding-block:2rem}}.breadcrumbs[data-astro-cid-vx4iavld]{background:var(--c-bg-soft);border-bottom:1px solid var(--c-line);font-size:.78rem}ol[data-astro-cid-vx4iavld]{color:var(--c-muted);flex-wrap:wrap;gap:0 .4em;margin:0;padding:.65rem 0;list-style:none;display:flex}li[data-astro-cid-vx4iavld]{align-items:center;margin:0;display:flex}li[data-astro-cid-vx4iavld]+li[data-astro-cid-vx4iavld]:before{content:"›";color:#b9c2d2;margin-right:.4em}a[data-astro-cid-vx4iavld]{color:var(--c-ink-soft);text-decoration:none}a[data-astro-cid-vx4iavld]:hover{color:var(--c-brand);text-decoration:underline}span[data-astro-cid-vx4iavld][aria-current]{color:var(--c-ink)}.cta[data-astro-cid-tv4n2zuu]{background:var(--c-bg-soft);border-top:1px solid var(--c-line);padding-block:clamp(2rem,1.4rem + 2vw,3rem)}.cta-inner[data-astro-cid-tv4n2zuu]{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1.5rem 3rem;display:flex}.cta-text[data-astro-cid-tv4n2zuu]{flex:380px}.cta[data-astro-cid-tv4n2zuu] h2[data-astro-cid-tv4n2zuu]{border:0;margin:0 0 .6em;padding:0;font-size:1.35rem}.cta[data-astro-cid-tv4n2zuu] p[data-astro-cid-tv4n2zuu]{color:var(--c-ink-soft);margin:0 0 .6em;font-size:.95rem}.cta-note[data-astro-cid-tv4n2zuu]{color:var(--c-muted)!important;margin-bottom:0!important;font-size:.85rem!important}.cta-actions[data-astro-cid-tv4n2zuu]{text-align:center;flex:0 280px}.cta-btn[data-astro-cid-tv4n2zuu]{padding-block:1em;display:block}.cta-sub[data-astro-cid-tv4n2zuu]{color:var(--c-muted)!important;margin:.8em 0 0!important;font-size:.78rem!important}