:root{--navy: #1F4E78;--navy-dark: #14385C;--green: #27ae60;--green-dark: #1f8a4c;--orange: #f59e0b;--accent: var(--green);--accent-dark: var(--green-dark);--bg: #f8f9fb;--card: #ffffff;--text: #2c3e50;--text-soft: #4a5568;--text-muted: #7f8c8d;--border: #e8edf3;--highlight: rgba(39, 174, 96, .18);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .1);--radius: 12px;--radius-sm: 8px;--content-width: 760px;--wide-width: 1080px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Hiragino Kaku Gothic ProN,Yu Gothic,YuGothic,Meiryo,Hiragino Sans,sans-serif;margin:0;padding:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased;word-wrap:break-word;overflow-wrap:break-word}main{width:var(--content-width);max-width:calc(100% - 2em);margin:0 auto;padding:2em 1em 4em}h1,h2,h3,h4,h5,h6{color:var(--navy);line-height:1.4;font-weight:700}a{color:var(--green-dark);text-decoration:none;transition:color .2s,background-color .2s}a:hover{color:var(--navy)}strong,b{font-weight:700}img{max-width:100%;height:auto}.prose{font-size:17px;line-height:1.95;color:var(--text)}.prose>p{margin:1.4em 0}.prose strong{color:var(--navy);background:linear-gradient(transparent 65%,var(--highlight) 65%);padding:0 2px;font-weight:700}.prose>p:first-of-type{font-size:1.05em;color:var(--text-soft);border-left:4px solid var(--green);padding:.5em 0 .5em 1.2em;background:#27ae600a;border-radius:0 8px 8px 0}.prose h2{background:#f1f5f9;border-left:6px solid var(--navy);border-radius:0 6px 6px 0;padding:.85em 1.2em;margin:3em 0 1.2em;font-size:1.55em;color:var(--navy)}.prose h3{position:relative;padding-left:.9em;margin:2.2em 0 .8em;font-size:1.25em;color:var(--navy);border-bottom:2px solid var(--green);padding-bottom:.3em}.prose h3:before{content:"";position:absolute;left:0;top:.35em;bottom:.45em;width:5px;background:var(--green);border-radius:2px}.prose h4{margin:1.8em 0 .5em;font-size:1.1em;color:var(--navy-dark)}.prose ul,.prose ol{margin:1.2em 0;padding-left:1.6em}.prose li{margin:.5em 0}.prose ul li::marker{color:var(--green)}.prose ol li::marker{color:var(--navy);font-weight:700}.prose a{color:var(--green-dark);border-bottom:1px solid var(--green);font-weight:500}.prose a:hover{background:#27ae6014;color:var(--navy)}.prose img{display:block;margin:2em auto;border-radius:var(--radius);box-shadow:var(--shadow-md);max-width:100%;height:auto}.prose blockquote{background:#fff8e1;border-left:5px solid var(--orange);padding:1em 1.4em;margin:1.8em 0;border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-soft);font-size:.98em;box-shadow:var(--shadow-sm)}.prose blockquote p{margin:.4em 0}.prose code{background:#f1f5f9;color:#c0392b;padding:2px 7px;border-radius:4px;font-size:.92em;font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,monospace}.prose pre{background:#1e293b;color:#e2e8f0;padding:1.3em;border-radius:var(--radius-sm);overflow-x:auto;margin:1.8em 0;font-size:.9em;box-shadow:var(--shadow-md)}.prose pre code{background:transparent;color:inherit;padding:0;font-size:inherit}.prose table{width:100%;border-collapse:collapse;margin:1.8em 0;box-shadow:var(--shadow-sm);border-radius:var(--radius-sm);overflow:hidden;font-size:.95em}.prose thead th{background:var(--navy);color:#fff;padding:.9em 1em;text-align:left;font-weight:700}.prose tbody td{padding:.85em 1em;border-bottom:1px solid var(--border);background:#fff}.prose tbody tr:hover td{background:#f8f9fb}.prose tbody tr:last-child td{border-bottom:none}.prose hr{border:none;height:2px;background:linear-gradient(90deg,transparent,var(--green),transparent);margin:3em 0}.prose .mermaid{background:#fff;padding:1.5em;border-radius:var(--radius);box-shadow:var(--shadow-sm);text-align:center;margin:2em 0}.sr-only{border:0;padding:0;margin:0;position:absolute!important;height:1px;width:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);white-space:nowrap}@media(max-width:720px){body{font-size:16px}.prose{font-size:16px;line-height:1.85}.prose h2{font-size:1.35em;padding:.7em .9em}.prose h3{font-size:1.15em}main{padding:1em}}footer[data-astro-cid-sz7xmlte]{background:#14233b;color:#d8dee9;padding:3em 1em 1.5em;margin-top:4em}.container[data-astro-cid-sz7xmlte]{max-width:var(--wide-width);margin:0 auto}.grid[data-astro-cid-sz7xmlte]{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:2em;margin-bottom:2em}.brand-row[data-astro-cid-sz7xmlte]{display:flex;align-items:baseline;gap:.3em;margin-bottom:.5em}.brand-mark[data-astro-cid-sz7xmlte]{background:var(--green);color:#fff;padding:4px 9px;border-radius:6px;font-size:.85em;font-weight:700;letter-spacing:.04em}.brand-name[data-astro-cid-sz7xmlte]{font-weight:700;color:#fff;font-size:1em}.tagline[data-astro-cid-sz7xmlte]{color:#9aa5b8;font-size:.9em;margin:.3em 0 0}h4[data-astro-cid-sz7xmlte]{color:#fff;font-size:.95em;margin:0 0 .7em;font-weight:700}ul[data-astro-cid-sz7xmlte]{list-style:none;padding:0;margin:0}ul[data-astro-cid-sz7xmlte] li[data-astro-cid-sz7xmlte]{margin:.4em 0}a[data-astro-cid-sz7xmlte]{color:#c8d3e3;text-decoration:none;font-size:.9em;transition:color .2s}a[data-astro-cid-sz7xmlte]:hover{color:var(--green)}p[data-astro-cid-sz7xmlte]{margin:.3em 0;font-size:.9em;color:#c8d3e3}.bottom[data-astro-cid-sz7xmlte]{border-top:1px solid #2c3e50;padding-top:1.2em;text-align:center;color:#7a8599;font-size:.85em}@media(max-width:720px){.grid[data-astro-cid-sz7xmlte]{grid-template-columns:1fr;gap:1.5em}}a[data-astro-cid-eimmu3lg]{display:inline-block;text-decoration:none}a[data-astro-cid-eimmu3lg].active{font-weight:bolder;text-decoration:underline}header[data-astro-cid-3ef6ksr2]{background:#fff;box-shadow:0 1px 4px #0000000f;position:sticky;top:0;z-index:100}.container[data-astro-cid-3ef6ksr2]{max-width:var(--wide-width);margin:0 auto;padding:.7em 1.2em;display:flex;align-items:center;justify-content:space-between;gap:1em}.brand[data-astro-cid-3ef6ksr2]{display:flex;align-items:baseline;gap:.3em;text-decoration:none;color:var(--navy);font-weight:700;font-size:1.1em}.brand-mark[data-astro-cid-3ef6ksr2]{background:var(--navy);color:#fff;padding:4px 9px;border-radius:6px;font-size:.85em;letter-spacing:.04em}.brand-name[data-astro-cid-3ef6ksr2]{font-size:1em;color:var(--navy)}nav[data-astro-cid-3ef6ksr2]{display:flex;gap:.3em}nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{padding:.5em .9em;color:var(--text);font-size:.92em;font-weight:500;border-bottom:3px solid transparent;text-decoration:none;transition:.2s}nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{color:var(--navy);border-bottom-color:var(--green)}nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2].active{color:var(--navy);border-bottom-color:var(--green);font-weight:700}@media(max-width:720px){.container[data-astro-cid-3ef6ksr2]{flex-direction:column;padding:.6em 1em;gap:.3em}nav[data-astro-cid-3ef6ksr2]{width:100%;justify-content:center}nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{padding:.4em .6em;font-size:.85em}.brand-name[data-astro-cid-3ef6ksr2]{font-size:.95em}}