:root{--bg:#f5f2ea;--paper:#fffdf8;--ink:#13211c;--muted:#5d6b65;--line:#d5d8cf;--accent:#1f5b46;--dark:#10241d;--max:1160px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","Yu Gothic UI","Yu Gothic",Meiryo,sans-serif;line-height:1.7}a{color:inherit}.container{width:min(calc(100% - 36px),var(--max));margin:0 auto}.site-header{position:sticky;top:0;z-index:10;backdrop-filter:blur(12px);background:rgba(245,242,234,.92);border-bottom:1px solid rgba(213,216,207,.85)}.nav{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-weight:800;letter-spacing:-.03em;text-decoration:none;font-size:1.18rem}.brand-mark{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--accent);margin-right:9px}.nav-links{display:flex;gap:22px;align-items:center;font-size:.92rem}.nav-links a{text-decoration:none;color:var(--muted)}.nav-links a:hover{color:var(--ink)}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border:1px solid var(--dark);border-radius:999px;text-decoration:none;font-weight:700;background:var(--dark);color:#fff}.btn.secondary{background:transparent;color:var(--ink);border-color:var(--line)}.hero{padding:86px 0 60px;border-bottom:1px solid var(--line)}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}.eyebrow:before{content:"";width:24px;height:1px;background:var(--accent)}h1{max-width:950px;margin:16px 0 20px;font-size:clamp(3rem,8vw,6.3rem);line-height:.98;letter-spacing:-.065em}.lede{max-width:740px;font-size:clamp(1.05rem,2vw,1.35rem);color:var(--muted);margin:0}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}.hero-note{margin-top:46px;padding-top:20px;border-top:1px solid var(--line);font-size:.9rem;color:var(--muted)}.section{padding:78px 0;border-bottom:1px solid var(--line)}.section-head{display:grid;grid-template-columns:1fr 2fr;gap:48px;margin-bottom:34px}.kicker{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:800}.section h2{margin:0;font-size:clamp(2rem,5vw,3.55rem);line-height:1.05;letter-spacing:-.045em}.section-intro{font-size:1.08rem;color:var(--muted);max-width:720px;margin:0}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.card{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:26px;min-height:240px}.card .num{font-size:.78rem;font-weight:800;color:var(--accent);letter-spacing:.1em}.card h3{font-size:1.35rem;line-height:1.2;margin:28px 0 12px;letter-spacing:-.025em}.card p{margin:0;color:var(--muted)}.steps{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--paper)}.step{padding:22px;border-right:1px solid var(--line)}.step:last-child{border-right:0}.step strong{display:block;margin-bottom:8px}.step span{font-size:.88rem;color:var(--muted)}.notice{border-radius:18px;padding:30px;background:var(--dark);color:#eef5f1;display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:end}.notice h3{font-size:clamp(1.7rem,4vw,2.8rem);line-height:1.05;letter-spacing:-.04em;margin:0 0 14px}.notice p{margin:0;color:#c5d3cc}.notice .status{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:#c5d3cc}.principles{display:grid;grid-template-columns:1fr 1fr;gap:14px}.principle{padding:26px 0;border-top:1px solid var(--line)}.principle strong{display:block;font-size:1.12rem;margin-bottom:8px}.principle p{margin:0;color:var(--muted)}.page-hero{padding:70px 0 50px;border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(2.8rem,7vw,5.3rem);max-width:900px}.prose{max-width:820px;padding:60px 0 90px}.prose h2{font-size:1.7rem;letter-spacing:-.025em;margin:48px 0 14px}.prose p,.prose li{color:#35433d}.prose ul{padding-left:1.25rem}.callout{background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--accent);padding:20px 22px;border-radius:12px;margin:28px 0}.site-footer{padding:40px 0 54px}.footer-grid{display:flex;justify-content:space-between;gap:32px;align-items:flex-start}.footer-links{display:flex;gap:16px;flex-wrap:wrap;font-size:.9rem}.footer-links a{color:var(--muted);text-decoration:none}.small{font-size:.84rem;color:var(--muted)}
@media(max-width:800px){.nav-links{display:none}.section-head{grid-template-columns:1fr;gap:14px}.grid-3{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}.notice{grid-template-columns:1fr}.principles{grid-template-columns:1fr}.footer-grid{flex-direction:column}.hero{padding-top:64px}h1{font-size:clamp(3.25rem,16vw,5rem)}}