:root{--teal: #00897b;--teal-strong: #007469;--teal-bright: #269b8f;--teal-light: #4db6ac;--grad-brand: linear-gradient(160deg, #269b8f 0%, #007469 100%);--r-xs: 4px;--r-sm: 6px;--r-md: 8px;--r-lg: 10px;--r-xl: 12px;--r-2xl: 20px;--sp-1: .25rem;--sp-2: .5rem;--sp-3: .75rem;--sp-4: 1rem;--sp-6: 1.5rem;--sp-8: 2rem;--sp-12: 3rem;--sp-16: 4rem;--sp-24: 6rem;--container: 1120px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--accent: var(--teal);--accent-hover: #00786c;--bg: #ffffff;--bg-subtle: #f5f8f7;--bg-elevated: #ffffff;--surface: #ffffff;--border: #e2e8e6;--border-strong: #cdd8d5;--text: #16211f;--text-muted: #5b6b68;--text-faint: #869490;--on-accent: #ffffff;--shadow-sm: 0 1px 2px rgba(16, 33, 30, .06), 0 1px 3px rgba(16, 33, 30, .08);--shadow-md: 0 4px 12px rgba(16, 33, 30, .08), 0 2px 4px rgba(16, 33, 30, .05);--shadow-lg: 0 18px 48px rgba(16, 33, 30, .14), 0 4px 12px rgba(16, 33, 30, .08);--hero-text: #ffffff;color-scheme:light}@media(prefers-color-scheme:dark){:root{--accent: var(--teal-light);--accent-hover: #63c3ba;--bg: #0c1413;--bg-subtle: #111c1a;--bg-elevated: #16211f;--surface: #16211f;--border: #23322f;--border-strong: #2f423e;--text: #eaf1ef;--text-muted: #a6b5b1;--text-faint: #778b86;--on-accent: #04201c;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 6px 18px rgba(0, 0, 0, .45);--shadow-lg: 0 22px 54px rgba(0, 0, 0, .55);color-scheme:dark}}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{margin:0;font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3,h4{line-height:1.15;font-weight:750;letter-spacing:-.02em;margin:0 0 .5em;color:var(--text)}p{margin:0 0 1em}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}img,svg{max-width:100%}ul{margin:0;padding:0}:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:var(--r-xs)}.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--sp-6)}.section{padding-block:var(--sp-24)}.section-tight{padding-block:var(--sp-16)}.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:var(--sp-3)}.section-title{font-size:clamp(1.75rem,1.2rem + 2vw,2.6rem);max-width:22ch}.section-lead{font-size:1.12rem;color:var(--text-muted);max-width:60ch}.center{text-align:center}.center .section-title,.center .section-lead{margin-inline:auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);padding:.7rem 1.35rem;border-radius:var(--r-lg);font-weight:650;font-size:1rem;line-height:1;border:1px solid transparent;cursor:pointer;transition:transform .12s ease,background .12s ease,border-color .12s ease,box-shadow .12s ease;text-decoration:none}.btn:hover{text-decoration:none}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--accent);color:var(--on-accent);box-shadow:var(--shadow-sm)}.btn-primary:hover{background:var(--accent-hover)}.btn-ghost{background:transparent;color:var(--text);border-color:var(--border-strong)}.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}.btn-on-dark-primary{background:#fff;color:#06342f}.btn-on-dark-primary:hover{background:#eafffb}.btn-on-dark-ghost{background:#ffffff14;color:#fff;border-color:#ffffff59}.btn-on-dark-ghost:hover{background:#ffffff29;border-color:#fff9}.btn-version{font-size:.8em;font-weight:700;line-height:1;padding:.15em .5em;border-radius:999px;white-space:nowrap;background:color-mix(in srgb,currentColor 14%,transparent)}.preview-tag{margin-inline-start:.35em;padding:.05em .4em;border-radius:999px;background:#f5a524;color:#3a2600;font-size:.85em;font-weight:700;font-style:normal}.reveal-ready .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease;will-change:opacity,transform}.reveal-ready .reveal.is-visible{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){.reveal-ready .reveal{opacity:1;transform:none;transition:none}}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.site-header[data-astro-cid-3ef6ksr2]{position:fixed;inset:0 0 auto;z-index:100;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid color-mix(in srgb,var(--border) 70%,transparent)}.bar[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:var(--sp-6);height:4rem}.brand[data-astro-cid-3ef6ksr2]{display:inline-flex;align-items:center;gap:.55rem;font-weight:800;letter-spacing:-.02em;color:var(--text);font-size:1.2rem}.brand[data-astro-cid-3ef6ksr2]:hover{text-decoration:none}.brand-name[data-astro-cid-3ef6ksr2]{line-height:1}.nav[data-astro-cid-3ef6ksr2]{display:flex;gap:var(--sp-6);margin-inline-start:var(--sp-4);margin-inline-end:auto}.nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{color:var(--text-muted);font-weight:550;font-size:.98rem}.nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{color:var(--accent);text-decoration:none}.actions[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:var(--sp-4);margin-inline-start:auto}.lang-toggle[data-astro-cid-3ef6ksr2]{color:var(--text-muted);font-weight:600;font-size:.95rem;padding:.3rem .6rem;border-radius:var(--r-md);border:1px solid var(--border)}.lang-toggle[data-astro-cid-3ef6ksr2]:hover{color:var(--accent);border-color:var(--accent);text-decoration:none}.gh-link[data-astro-cid-3ef6ksr2]{display:inline-flex;color:var(--text-muted)}.gh-link[data-astro-cid-3ef6ksr2]:hover{color:var(--accent)}.btn-sm[data-astro-cid-3ef6ksr2]{padding:.5rem .95rem;font-size:.95rem;border-radius:var(--r-md)}@media(max-width:820px){.nav[data-astro-cid-3ef6ksr2]{display:none}}@media(max-width:520px){.bar[data-astro-cid-3ef6ksr2]{gap:var(--sp-3)}.gh-link[data-astro-cid-3ef6ksr2]{display:none}}.site-footer[data-astro-cid-sz7xmlte]{border-top:1px solid var(--border);background:var(--bg-subtle);padding-block:var(--sp-16) var(--sp-8);margin-top:var(--sp-8)}.grid[data-astro-cid-sz7xmlte]{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:var(--sp-8)}.brand[data-astro-cid-sz7xmlte]{display:inline-flex;align-items:center;gap:.55rem;font-weight:800;font-size:1.2rem;letter-spacing:-.02em;color:var(--text)}.brand[data-astro-cid-sz7xmlte]:hover{text-decoration:none}.tagline[data-astro-cid-sz7xmlte]{color:var(--text-muted);margin-top:var(--sp-3);max-width:34ch}.mit[data-astro-cid-sz7xmlte]{color:var(--text-faint);font-size:.9rem;margin:0}.col[data-astro-cid-sz7xmlte] h2[data-astro-cid-sz7xmlte]{font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--text-faint);font-weight:700;margin-bottom:var(--sp-4)}.col[data-astro-cid-sz7xmlte] ul[data-astro-cid-sz7xmlte]{list-style:none;display:flex;flex-direction:column;gap:var(--sp-3)}.col[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--text-muted);font-weight:550}.col[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--accent)}.bottom[data-astro-cid-sz7xmlte]{display:flex;align-items:center;gap:var(--sp-3);margin-top:var(--sp-12);padding-top:var(--sp-6);border-top:1px solid var(--border);color:var(--text-faint);font-size:.9rem}.dot[data-astro-cid-sz7xmlte]{color:var(--border-strong)}@media(max-width:780px){.grid[data-astro-cid-sz7xmlte]{grid-template-columns:1fr 1fr}.brand-col[data-astro-cid-sz7xmlte]{grid-column:1 / -1}}@media(max-width:460px){.grid[data-astro-cid-sz7xmlte]{grid-template-columns:1fr}}.skip-link[data-astro-cid-37fxchfa]{position:absolute;left:50%;transform:translate(-50%) translateY(-120%);top:.5rem;z-index:200;background:var(--accent);color:var(--on-accent);padding:.6rem 1rem;border-radius:var(--r-md);font-weight:650;transition:transform .15s ease}.skip-link[data-astro-cid-37fxchfa]:focus{transform:translate(-50%) translateY(0);text-decoration:none}.main-padded[data-astro-cid-37fxchfa]{padding-top:4.5rem}