:root{--navy:#173650;--blue:#2e78b7;--blue-soft:#eaf4ff;--ink:#182633;--muted:#607080;--line:#dbe5ea;--bg:#fffdf9;--card:#fff;--peach:#f3b778;--peach-soft:#fff1e4}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:var(--bg);line-height:1.8}a{color:var(--blue)}.site-head{background:var(--navy);color:#fff}.head-inner{max-width:1040px;margin:auto;padding:18px}.brand-link{color:#fff;text-decoration:none;font-weight:950;font-size:20px}.crumb{max-width:1040px;margin:0 auto;padding:14px 18px 0;color:var(--muted);font-size:13px}.crumb a{color:var(--muted)}main{max-width:1040px;margin:auto;padding:18px 18px 64px}.hero{padding:20px 0 8px}.eyebrow{color:var(--blue);font-size:13px;font-weight:900}h1{margin:4px 0 10px;color:var(--navy);font-size:clamp(28px,4.5vw,44px);line-height:1.25}h2{margin:0 0 8px;color:var(--navy);font-size:22px}h3{margin:20px 0 5px;color:var(--navy);font-size:17px}p{margin:8px 0}.lead{font-size:17px;color:#364957;max-width:880px}.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 24px}.cta{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 17px;border-radius:999px;text-decoration:none;font-weight:900;border:1px solid var(--navy)}.cta.primary{background:var(--navy);color:#fff}.cta.secondary{background:#fff;color:var(--navy)}.card{margin:18px 0;padding:20px;border:1px solid var(--line);border-radius:18px;background:var(--card);box-shadow:0 5px 18px rgba(23,54,80,.045)}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.mini{padding:14px;border:1px solid var(--line);border-radius:14px;background:#fbfdfe}.mini strong{display:block;color:var(--navy)}.steps{counter-reset:step;list-style:none;padding:0}.steps li{position:relative;padding:10px 10px 10px 46px;margin:7px 0;border:1px solid var(--line);border-radius:12px;background:#fff}.steps li:before{counter-increment:step;content:counter(step);position:absolute;left:10px;top:10px;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:var(--blue-soft);color:var(--navy);font-weight:900}.note{padding:13px 15px;border-left:4px solid var(--blue);background:#f4f9fd}.privacy{border-left-color:#43a36d;background:#f1faf5}.related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.related a{display:block;padding:14px;border:1px solid var(--line);border-radius:14px;background:#fff;text-decoration:none;color:var(--ink)}.related strong{display:block;color:var(--navy)}.faq details{padding:12px 0;border-top:1px solid var(--line)}.faq details:first-of-type{border-top:0}.faq summary{cursor:pointer;font-weight:900;color:var(--navy)}footer{margin-top:34px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}code{padding:2px 5px;border-radius:6px;background:#f0f4f7}@media(max-width:720px){.grid,.related{grid-template-columns:1fr}.cta{width:100%}.card{padding:16px}}