:root{color-scheme:light;--ink:#17314a;--muted:#627589;--primary:#0b6e74;--bg:#f6f8fb;--line:#dfe7ed;--card:#fff;--tint:#e9f4f3}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",sans-serif;color:var(--ink);background:var(--bg);line-height:1.8}a{color:var(--primary);text-underline-offset:3px}a:hover{opacity:.84}header{background:var(--card);border-bottom:1px solid var(--line)}.nav{max-width:1050px;margin:auto;padding:19px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-weight:800;letter-spacing:.02em}.mark{width:32px;height:32px;border:7px solid var(--primary);border-radius:50%;border-right-color:#9ccdc8;transform:rotate(-25deg)}.navlinks{display:flex;align-items:center;flex-wrap:wrap;gap:20px;font-size:14px}.container{max-width:1050px;margin:auto;padding:0 24px}.hero{padding:84px 0 72px;background:linear-gradient(135deg,#e9f4f3 0%,#f8fafb 72%);border-bottom:1px solid var(--line)}.eyebrow{display:inline-block;font-size:12px;font-weight:800;color:var(--primary);letter-spacing:.13em;text-transform:uppercase}.hero h1{font-size:clamp(38px,6vw,64px);line-height:1.2;letter-spacing:-.045em;margin:15px 0 22px;max-width:820px}.lead{max-width:740px;color:#425b70;font-size:17px;line-height:1.95}.cta{display:flex;gap:12px;flex-wrap:wrap;margin:32px 0 0}.button{display:inline-block;text-decoration:none;padding:12px 22px;border-radius:10px;background:var(--primary);color:white;font-weight:700;font-size:14px}.button.secondary{background:white;color:var(--primary);border:1px solid #9fc5c2}.section{padding:62px 0}.section h2,.policy h1{font-size:clamp(25px,3vw,34px);letter-spacing:-.025em;margin:0 0 12px}.intro{color:var(--muted);margin:0 0 30px}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px}.card h3{font-size:17px;margin:4px 0 8px}.card p{margin:0;color:#4b6376;font-size:14px}.num{font-weight:800;color:var(--primary);font-size:13px}.note{border-left:4px solid var(--primary);padding:17px 21px;background:var(--tint);margin:28px 0;border-radius:0 10px 10px 0;font-size:14px}.links-section{padding:42px 0 64px}.links-row{display:flex;flex-wrap:wrap;gap:14px}.policy{max-width:850px;margin:0 auto;padding:55px 24px 78px}.policy h1{margin-bottom:8px}.policy h2{font-size:20px;margin:38px 0 10px;padding-bottom:8px;border-bottom:1px solid var(--line)}.policy p,.policy li{color:#3d5266}.policy ul{padding-left:24px}.policy li{margin:8px 0}.meta{font-size:13px;color:var(--muted)}code{word-break:break-word;padding:2px 5px;background:#e7eef2;border-radius:4px}footer{background:white;border-top:1px solid var(--line)}.footer-inner{max-width:1050px;margin:auto;padding:28px 24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;color:var(--muted);font-size:13px}.footer-inner a{margin-left:16px}.contact-email{background:var(--tint);border-radius:8px;padding:12px 16px;font-weight:700;word-break:break-word}@media(max-width:760px){.cards{grid-template-columns:1fr}.hero{padding:56px 0}.section{padding:42px 0}.nav{align-items:flex-start;flex-direction:column}.policy{padding-top:35px}.footer-inner a{margin:0 16px 0 0}}