:root{--ink:#152238;--muted:#5f6d7d;--line:#dfe6ee;--bg:#f6f8fb;--card:#fff;--accent:#0f68d5;--soft:#eaf3ff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;line-height:1.9}a{color:#095ebd;text-underline-offset:3px}.wrap{width:min(1080px,calc(100% - 32px));margin:auto}.sitebar{background:#10233f;color:#fff}.sitebar .wrap{display:flex;align-items:center;justify-content:space-between;min-height:58px;gap:20px}.brand{font-weight:800;letter-spacing:.05em}.brand a{color:#fff;text-decoration:none}.back{color:#dbe9ff;font-size:.92rem}.breadcrumb{font-size:.86rem;color:var(--muted);padding:18px 0}.breadcrumb a{color:inherit}.hero{background:linear-gradient(135deg,#fff 0%,#eef6ff 100%);border:1px solid var(--line);border-radius:24px;padding:clamp(28px,5vw,58px);box-shadow:0 14px 40px rgba(19,39,70,.06)}.eyebrow{font-size:.86rem;font-weight:800;color:var(--accent);letter-spacing:.08em}.hero h1{font-size:clamp(2rem,5vw,3.45rem);line-height:1.22;margin:.25em 0}.lede{font-size:clamp(1.05rem,2vw,1.28rem);color:#344761;max-width:820px}.notice{margin-top:22px;border-left:4px solid var(--accent);background:#fff;padding:14px 17px;border-radius:10px;color:#47566a}.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.btn{display:inline-block;border-radius:999px;padding:12px 20px;text-decoration:none;font-weight:800}.btn.primary{background:var(--accent);color:#fff}.btn.secondary{background:#fff;border:1px solid var(--line);color:var(--ink)}main{padding-bottom:70px}.grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;margin-top:24px}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:clamp(22px,3vw,34px)}.card h2{margin-top:0;font-size:1.45rem;line-height:1.4}.card h3{margin-top:1.5em;line-height:1.5}.card ul{padding-left:1.25em}.card li+li{margin-top:.5em}.zones{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;list-style:none!important;padding:0!important}.zones li{background:var(--soft);padding:12px 14px;border-radius:12px;font-weight:700;margin:0!important}.steps{counter-reset:s}.steps li{list-style:none;position:relative;padding-left:42px;margin:16px 0}.steps li:before{counter-increment:s;content:counter(s);position:absolute;left:0;top:.15em;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#152238;color:#fff;font-weight:800}.area-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.area-list a{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;text-decoration:none}.area-list strong{display:block;font-size:1.12rem;color:var(--ink)}.area-list span{color:var(--muted);font-size:.9rem}.faq details{border-top:1px solid var(--line);padding:15px 0}.faq details:first-of-type{border-top:0}.faq summary{cursor:pointer;font-weight:800}.source{font-size:.9rem;color:var(--muted)}footer{border-top:1px solid var(--line);background:#fff;padding:28px 0;color:var(--muted);font-size:.88rem}@media(max-width:760px){.grid{grid-template-columns:1fr}.area-list{grid-template-columns:1fr}.zones{grid-template-columns:1fr}.sitebar .wrap{align-items:flex-start;flex-direction:column;padding:13px 0;gap:2px}.hero{border-radius:18px}.wrap{width:min(100% - 22px,1080px)}}