:root{--color-navy: #14304F;--color-navy-deep: #0B1E33;--color-ink: #1A232E;--color-paper: #FBFBF9;--color-surface: #FFFFFF;--color-green: #2F7A5B;--color-green-deep: #245F47;--color-brass: #B0883C;--color-muted: #586574;--color-line: #E5E7E2;--font-body: "Noto Sans JP", system-ui, -apple-system, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;--font-display: var(--font-body);--font-mono: "SFMono-Regular", "JetBrains Mono", Consolas, Menlo, "Liberation Mono", monospace;--text-xs: .78rem;--text-sm: .875rem;--text-base: 1.0625rem;--text-lg: 1.25rem;--text-xl: 1.5rem;--text-2xl: 2rem;--text-3xl: clamp(2rem, 1.4rem + 2.6vw, 2.9rem);--text-hero: clamp(2.4rem, 1.4rem + 4.2vw, 4rem);--weight-normal: 400;--weight-medium: 500;--weight-bold: 700;--leading-tight: 1.25;--leading-snug: 1.4;--leading-body: 1.85;--tracking-label: .18em;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-6: 1.5rem;--space-8: 2rem;--space-12: 3rem;--space-16: 4rem;--space-24: 6rem;--space-32: 8rem;--container: 72rem;--container-narrow: 46rem;--gutter: clamp(1.25rem, .5rem + 3vw, 2.5rem);--radius-sm: 4px;--radius: 10px;--radius-lg: 18px;--shadow-sm: 0 1px 2px rgba(11, 30, 51, .06);--shadow: 0 14px 40px -18px rgba(11, 30, 51, .28);--transition: .18s ease}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{font-family:var(--font-body);font-size:var(--text-base);line-height:var(--leading-body);color:var(--color-ink);background:var(--color-paper);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}img,picture,svg{display:block;max-width:100%}h1,h2,h3{font-family:var(--font-display);line-height:var(--leading-tight);font-weight:var(--weight-bold);color:var(--color-navy);letter-spacing:.01em}h1{font-size:var(--text-hero)}h2{font-size:var(--text-3xl)}h3{font-size:var(--text-xl)}p{color:var(--color-ink)}a{color:var(--color-green-deep);text-underline-offset:.18em;text-decoration-thickness:1px;transition:color var(--transition)}a:hover{color:var(--color-green)}.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}.container--narrow{max-width:var(--container-narrow)}.section{padding-block:var(--space-24)}.eyebrow{font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:var(--tracking-label);text-transform:uppercase;color:var(--color-green);display:inline-flex;align-items:center;gap:var(--space-2)}.eyebrow:before{content:"";width:1.5rem;height:1px;background:var(--color-brass)}.btn{display:inline-block;font-family:var(--font-body);font-weight:var(--weight-medium);font-size:var(--text-base);line-height:1;padding:.9rem 1.6rem;border-radius:var(--radius);border:1px solid transparent;cursor:pointer;transition:background var(--transition),color var(--transition),border-color var(--transition)}.btn--primary{background:var(--color-green);color:#fff}.btn--primary:hover{background:var(--color-green-deep);color:#fff}.btn--ghost{background:transparent;color:var(--color-paper);border-color:#fbfbf966}.btn--ghost:hover{border-color:var(--color-paper);color:#fff}:focus-visible{outline:3px solid var(--color-green);outline-offset:2px;border-radius:var(--radius-sm)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.site-header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--color-paper) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--color-line)}.site-header__inner[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:space-between;gap:var(--space-6);padding-block:var(--space-4)}.brand[data-astro-cid-3ef6ksr2]{text-decoration:none;line-height:1.2}.brand__name[data-astro-cid-3ef6ksr2]{display:block;font-weight:var(--weight-bold);color:var(--color-navy);font-size:var(--text-lg)}.brand__tag[data-astro-cid-3ef6ksr2]{display:block;font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:var(--tracking-label);color:var(--color-green)}.nav[data-astro-cid-3ef6ksr2]{display:flex;gap:var(--space-6);list-style:none;padding:0}.nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{color:var(--color-ink);text-decoration:none;font-size:var(--text-sm);font-weight:var(--weight-medium)}.nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{color:var(--color-green)}@media(max-width:640px){.nav[data-astro-cid-3ef6ksr2]{display:none}}.site-footer[data-astro-cid-sz7xmlte]{background:var(--color-navy-deep);color:var(--color-paper);margin-top:var(--space-32)}.site-footer__inner[data-astro-cid-sz7xmlte]{display:flex;flex-wrap:wrap;justify-content:space-between;gap:var(--space-12);padding-block:var(--space-16)}.site-footer__name[data-astro-cid-sz7xmlte]{font-weight:var(--weight-bold);margin-bottom:var(--space-2)}.site-footer__meta[data-astro-cid-sz7xmlte]{color:color-mix(in srgb,var(--color-paper) 72%,transparent);font-size:var(--text-sm);line-height:1.9}.site-footer__meta[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--color-paper);text-decoration:none}.site-footer__meta[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:#fff;text-decoration:underline}.site-footer__links[data-astro-cid-sz7xmlte]{list-style:none;padding:0;display:grid;gap:var(--space-3)}.site-footer__links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--color-paper);text-decoration:none;font-size:var(--text-sm)}.site-footer__links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:#fff;text-decoration:underline}.site-footer__bottom[data-astro-cid-sz7xmlte]{border-top:1px solid rgba(251,251,249,.14);padding-block:var(--space-6);color:color-mix(in srgb,var(--color-paper) 60%,transparent)}