:root{--accent:#2563eb;--accent-dark:#1d4ed8;--black:#0f172a;--gray-dark:#334155;--gray:#64748b;--gray-light:#f1f5f9;--border-color:#e2e8f0;--bg-main:#fff;--font-base:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--box-shadow:0 4px 6px -1px #0000000d, 0 2px 4px -2px #0000000d}html{box-sizing:border-box;font-size:16px}*,:before,:after{box-sizing:inherit}body{font-family:var(--font-base);text-align:left;color:var(--gray-dark);letter-spacing:.02em;word-wrap:break-word;overflow-wrap:break-word;-webkit-font-smoothing:antialiased;background-color:#f8fafc;margin:0;padding:0;font-size:1rem;line-height:1.8}main{background-color:var(--bg-main);border-radius:8px;width:820px;max-width:calc(100% - 2rem);min-height:calc(100vh - 180px);margin:1.5rem auto 2.5rem;padding:2.5rem 1rem 4rem;box-shadow:0 1px 3px #0000000a}h1,h2,h3,h4,h5,h6{color:var(--black);margin-top:2rem;margin-bottom:.8rem;font-weight:700;line-height:1.45}h1{letter-spacing:-.01em;font-size:1.85rem}h2{border-bottom:2px solid var(--border-color);margin-top:2.5rem;padding-bottom:.4rem;font-size:1.45rem}h3{margin-top:1.8rem;font-size:1.2rem}h4{font-size:1.05rem}p{margin-top:0;margin-bottom:1.4rem}.prose p{margin-bottom:1.5rem}strong,b{color:var(--black);font-weight:700}a{color:var(--accent);text-decoration:none;transition:color .15s}a:hover{color:var(--accent-dark);text-decoration:underline}ul,ol{margin-bottom:1.5rem;padding-left:1.5rem}li{margin-bottom:.5rem}blockquote{border-left:4px solid var(--accent);color:#475569;background-color:#f8fafc;border-radius:0 6px 6px 0;margin:1.5rem 0;padding:.8rem 1.2rem;font-size:.95rem;font-style:italic}blockquote p:last-child{margin-bottom:0}code{font-family:var(--font-mono);color:#0f172a;background-color:#f1f5f9;border:1px solid #e2e8f0;border-radius:4px;padding:.15em .4em;font-size:.875em}pre{font-family:var(--font-mono);color:#f8fafc;background-color:#0f172a;border-radius:8px;margin:1.5rem 0;padding:1.25rem;font-size:.9rem;line-height:1.6;overflow-x:auto}pre code{color:inherit;font-size:inherit;background-color:#0000;border:none;padding:0}hr{border:none;border-top:1px solid var(--border-color);margin:2rem 0}img{border-radius:8px;max-width:100%;height:auto}table{border-collapse:collapse;width:100%;margin:1.5rem 0;font-size:.95rem}th,td{border:1px solid var(--border-color);text-align:left;padding:.6rem .8rem}th{color:var(--black);background-color:#f8fafc;font-weight:600}@media (width<=768px){html{font-size:15px}main{width:100%;max-width:100%;box-shadow:none;border-radius:0;margin:0;padding:1.25rem 1rem 3rem}h1{font-size:1.5rem;line-height:1.4}h2{font-size:1.25rem}h3{font-size:1.1rem}}.sr-only{clip:rect(1px, 1px, 1px, 1px);clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:0;padding:0;overflow:hidden;position:absolute!important}footer[data-astro-cid-jo6i4kqk]{color:#64748b;text-align:center;background:#fff;border-top:1px solid #e2e8f0;padding:2.5rem 1rem 4rem;font-size:.85rem}.footer-content[data-astro-cid-jo6i4kqk]{max-width:960px;margin:0 auto}.copyright[data-astro-cid-jo6i4kqk]{margin:0 0 .75rem}.social-links[data-astro-cid-jo6i4kqk]{justify-content:center;gap:1rem;display:flex}.social-links[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]{color:#64748b;text-decoration:none;transition:color .15s}.social-links[data-astro-cid-jo6i4kqk] a[data-astro-cid-jo6i4kqk]:hover{color:#0f172a}header[data-astro-cid-nen7h5rs]{background:#fff;border-bottom:1px solid #e2e8f0;margin:0;padding:0 1rem;box-shadow:0 1px 2px #00000008}.header-inner[data-astro-cid-nen7h5rs]{justify-content:space-between;align-items:center;max-width:960px;min-height:56px;margin:0 auto;display:flex}.site-logo[data-astro-cid-nen7h5rs]{margin:0;font-size:.95rem;font-weight:700}.site-logo[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{color:#0f172a;text-decoration:none}nav[data-astro-cid-nen7h5rs]{align-items:center;gap:1rem;display:flex}.internal-links[data-astro-cid-nen7h5rs]{display:flex}nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{color:#475569;border-bottom:2px solid #0000;padding:.5rem .6rem;font-size:.9rem;font-weight:500;text-decoration:none;transition:color .15s}nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]:hover{color:#2563eb;text-decoration:none}nav[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs].active{color:#2563eb;border-bottom-color:#2563eb}.social-links[data-astro-cid-nen7h5rs],.social-links[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]{color:#64748b;align-items:center;display:flex}.social-links[data-astro-cid-nen7h5rs] a[data-astro-cid-nen7h5rs]:hover{color:#0f172a}@media (width<=640px){.header-inner[data-astro-cid-nen7h5rs]{flex-direction:column;gap:.4rem;padding:.5rem 0}.site-logo[data-astro-cid-nen7h5rs]{font-size:.9rem}}