:root{--color-bg: #f8fafc;--color-surface: #ffffff;--color-text: #1e293b;--color-text-muted: #64748b;--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-accent: #059669;--color-border: #e2e8f0;--color-highlight: #eff6ff;--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Noto Sans JP", "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", Meiryo, sans-serif;--radius: 12px;--shadow: 0 1px 3px rgb(15 23 42 / 8%);--shadow-lg: 0 10px 40px rgb(15 23 42 / 10%);--max-width: 1120px;--header-height: 64px}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.7;color:var(--color-text);background:var(--color-bg);font-feature-settings:"palt";letter-spacing:.01em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}img{max-width:100%;height:auto;display:block}a{color:var(--color-primary)}h1,h2,h3,h4{line-height:1.35;margin:0 0 .5em;font-weight:700;letter-spacing:.01em}p{margin:0 0 1em}ul{margin:0;padding:0}.container{width:min(100% - 2rem,var(--max-width));margin-inline:auto}.section{padding:4rem 0}.section--alt{background:var(--color-surface)}.section__label{display:inline-block;font-size:.8125rem;font-weight:600;letter-spacing:.06em;color:var(--color-primary);text-transform:uppercase;margin-bottom:.5rem}.section__title{font-size:clamp(1.5rem,4vw,2rem);margin-bottom:.75rem}.section__lead{color:var(--color-text-muted);width:100%;max-width:none;margin-bottom:2rem}.grid{display:grid;gap:1.25rem}.grid--2,.grid--3{grid-template-columns:1fr}@media(min-width:640px){.grid--2{grid-template-columns:repeat(2,1fr)}}@media(min-width:768px){.grid--3{grid-template-columns:repeat(3,1fr)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;font-size:.9375rem;font-weight:600;text-decoration:none;border-radius:8px;border:2px solid transparent;cursor:pointer;transition:background .15s,color .15s,border-color .15s}.btn--primary{background:var(--color-primary);color:#fff}.btn--primary:hover{background:var(--color-primary-dark);color:#fff}.btn--secondary{background:var(--color-surface);color:var(--color-primary);border-color:var(--color-primary)}.btn--secondary:hover{background:var(--color-highlight)}.btn--ghost{background:transparent;color:var(--color-text);border-color:var(--color-border)}.btn--ghost:hover{border-color:var(--color-primary);color:var(--color-primary)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow)}.card--highlight{border-color:var(--color-primary);background:var(--color-highlight)}.tag{display:inline-block;font-size:.75rem;padding:.2rem .6rem;border-radius:999px;background:#f1f5f9;color:var(--color-text-muted);margin:.15rem .25rem .15rem 0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:100;background:#ffffffeb;backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border);height:var(--header-height)}.header__inner[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:var(--header-height)}.header__brand[data-astro-cid-3ef6ksr2]{text-decoration:none;color:var(--color-text);font-weight:700;font-size:1rem;white-space:nowrap}.header__nav[data-astro-cid-3ef6ksr2]{display:none}.header__list[data-astro-cid-3ef6ksr2]{display:flex;gap:1.25rem;list-style:none}.header__list[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{text-decoration:none;color:var(--color-text-muted);font-size:.875rem;font-weight:500}.header__list[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{color:var(--color-primary)}.header__cta[data-astro-cid-3ef6ksr2]{padding:.5rem 1rem;font-size:.875rem}@media(min-width:900px){.header__nav[data-astro-cid-3ef6ksr2]{display:block}}.footer[data-astro-cid-sz7xmlte]{background:var(--color-text);color:#cbd5e1;padding:2.5rem 0;margin-top:2rem}.footer__inner[data-astro-cid-sz7xmlte]{display:flex;flex-direction:column;gap:1.25rem}.footer__brand[data-astro-cid-sz7xmlte]{font-weight:700;color:#fff;margin:0 0 .25rem}.footer__tagline[data-astro-cid-sz7xmlte]{font-size:.875rem;margin:0;max-width:28rem}.footer__nav[data-astro-cid-sz7xmlte]{display:flex;flex-wrap:wrap;gap:1rem}.footer__nav[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:#94a3b8;text-decoration:none;font-size:.875rem}.footer__nav[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:#fff}.footer__copy[data-astro-cid-sz7xmlte]{font-size:.8125rem;margin:0;color:#64748b}