:root{--color-accent: #0ea5e9;--color-accent-dark: #0284c7;--color-cta: #facc15;--color-cta-dark: #eab308;--color-coral: #fb7185;--color-success: #16a34a;--color-bg: #f8fbff;--color-surface: #ffffff;--color-hero-from: #e0f2fe;--color-hero-to: #f0f9ff;--color-text: #1e293b;--color-text-muted: #64748b;--color-border: #bae6fd;--radius-sm: 10px;--radius-md: 16px;--radius-lg: 22px;--shadow-card: 0 2px 6px rgba(14, 165, 233, .07), 0 4px 14px rgba(14, 165, 233, .05);--shadow-card-hover: 0 8px 20px rgba(14, 165, 233, .15), 0 14px 32px rgba(14, 165, 233, .1);--space-section: 3.5rem;--content-width: 720px;--wide-width: 1040px;--accent: var(--color-accent);--accent-dark: var(--color-accent-dark);--black: 30, 41, 59;--gray: 100, 116, 139;--gray-light: 186, 230, 253;--gray-dark: 30, 41, 59;--gray-gradient: var(--color-hero-from), var(--color-hero-to);--box-shadow: var(--shadow-card-hover)}body{font-family:var(--font-atkinson),"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif;margin:0;padding:0;text-align:left;background:var(--color-bg);word-wrap:break-word;overflow-wrap:break-word;color:var(--color-text);font-size:20px;line-height:1.8}main{width:720px;max-width:calc(100% - 2em);margin:auto;padding:3em 1em}h1,h2,h3,h4,h5,h6{margin:0 0 .5rem;color:rgb(var(--black));line-height:1.2}h1{font-size:3.052em}h2{font-size:2.441em}h3{font-size:1.953em}h4{font-size:1.563em}h5{font-size:1.25em}strong,b{font-weight:700}a{color:var(--color-accent)}a:hover{color:var(--color-accent-dark)}p{margin-bottom:1em}.prose p{margin-bottom:2em}textarea{width:100%;font-size:16px}input{font-size:16px}table{width:100%}img{max-width:100%;height:auto;border-radius:8px}code{padding:2px 5px;background-color:rgb(var(--gray-light));border-radius:2px}pre{padding:1.5em;border-radius:8px}pre>code{all:unset}blockquote{border-left:4px solid var(--accent);padding:0 0 0 20px;margin:0;font-size:1.333em}hr{border:none;border-top:1px solid rgb(var(--gray-light))}@media(max-width:720px){body{font-size:18px}main{padding:1em}}.sr-only{border:0;padding:0;margin:0;position:absolute!important;height:1px;width:1px;overflow:hidden;clip:rect(1px 1px 1px 1px);clip:rect(1px,1px,1px,1px);clip-path:inset(50%);white-space:nowrap}footer[data-astro-cid-sz7xmlte]{padding:2.5em 1em 5em;background:linear-gradient(180deg,var(--color-hero-from) 0%,var(--color-hero-to) 100%);border-top:2px solid var(--color-border);color:var(--color-text-muted);text-align:center;font-size:.9em}.footer-links[data-astro-cid-sz7xmlte]{display:flex;justify-content:center;flex-wrap:wrap;gap:1.5em;margin-bottom:1.2em}.footer-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--color-accent);text-decoration:none;font-size:.9em;font-weight:600;transition:color .15s ease}.footer-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--color-accent-dark);text-decoration:underline}.social-links[data-astro-cid-sz7xmlte]{display:flex;justify-content:center;gap:1em;margin-top:1em}.social-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{text-decoration:none;color:var(--color-accent);font-weight:600;transition:color .15s ease}.social-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--color-accent-dark)}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]{margin:0;background:var(--color-surface);border-bottom:2px solid var(--color-border);position:sticky;top:0;z-index:50;box-shadow:0 2px 8px #0ea5e912}nav[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:space-between;gap:1rem;max-width:var(--wide-width);margin:0 auto;padding:0 1.25rem}.brand[data-astro-cid-3ef6ksr2]{font-weight:800;font-size:1.18rem;color:var(--color-accent);text-decoration:none;padding:.9rem 0;white-space:nowrap;letter-spacing:.01em;transition:color .15s ease}.brand[data-astro-cid-3ef6ksr2]:hover{color:var(--color-accent-dark)}.internal-links[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:.25rem}.internal-links[data-astro-cid-3ef6ksr2] a{padding:.85rem .75rem;color:var(--color-text-muted);border-bottom:3px solid transparent;text-decoration:none;font-size:.95rem;font-weight:600;transition:color .15s ease,border-color .15s ease}.internal-links[data-astro-cid-3ef6ksr2] a:hover{color:var(--color-accent)}.internal-links[data-astro-cid-3ef6ksr2] a.active{border-bottom-color:var(--color-accent);color:var(--color-accent)}.nav-toggle[data-astro-cid-3ef6ksr2]{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:0;background:none;border:none;cursor:pointer}.nav-toggle[data-astro-cid-3ef6ksr2] .bar[data-astro-cid-3ef6ksr2]{display:block;width:24px;height:2.5px;margin:0 auto;background:var(--color-accent);border-radius:2px;transition:.2s ease}@media(max-width:720px){.nav-toggle[data-astro-cid-3ef6ksr2]{display:flex}.internal-links[data-astro-cid-3ef6ksr2]{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:var(--color-surface);border-bottom:2px solid var(--color-border);box-shadow:0 4px 16px #0ea5e91a}.internal-links[data-astro-cid-3ef6ksr2].open{display:flex}.internal-links[data-astro-cid-3ef6ksr2] a{padding:1rem 1.25rem;border-bottom:1px solid var(--color-border)}.internal-links[data-astro-cid-3ef6ksr2] a.active{border-bottom-color:var(--color-border);background:var(--color-hero-from)}}