:root{--navy:#071225;--navy2:#17304e;--gold:#c99842;--gold2:#f1d496;--ink:#111827;--muted:#667085;--line:#e5e7eb;--soft:#f6f7f9;--white:#fff;--shadow:0 18px 50px rgba(7,18,37,.09)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;color:var(--ink);background:var(--soft);line-height:1.8}a{color:inherit;text-decoration:none}.wrap{width:min(1120px,calc(100% - 40px));margin:auto}.headbar{position:sticky;top:0;z-index:50;background:rgba(7,18,37,.97);border-bottom:1px solid rgba(255,255,255,.09);backdrop-filter:blur(12px)}.headin{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{font-family:Georgia,serif;letter-spacing:.14em;font-weight:900;color:#fff}.nav{display:flex;align-items:center;gap:18px;color:#d9e2ee;font-size:12px;font-weight:800}.nav a:hover{color:#fff}.nav .cta{padding:9px 13px;border-radius:999px;background:linear-gradient(135deg,var(--gold),var(--gold2));color:#211b11}.mobile{display:none;color:#fff}.mobile summary{cursor:pointer;font-weight:800}.mobile nav{position:absolute;left:14px;right:14px;top:60px;background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow)}.mobile nav a{display:block;padding:11px;border-bottom:1px solid var(--line)}.hero{background:radial-gradient(circle at 85% 15%,rgba(201,152,66,.28),transparent 32%),linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;padding:72px 0}.heroIn{display:grid;grid-template-columns:1.1fr .9fr;gap:45px;align-items:center}.hero h1{font-size:clamp(38px,5.5vw,64px);line-height:1.12;letter-spacing:-.04em;margin:14px 0 18px}.hero h1 em{font-style:normal;color:#efcb80}.lead{font-size:17px;color:#d7e0eb;max-width:760px}.kicker{color:#a16d16;font-size:11px;font-weight:950;letter-spacing:.16em}.hero .kicker{color:#f0ce89}.heroCard{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:26px;padding:22px;box-shadow:0 25px 60px rgba(0,0,0,.18)}.heroCard strong{display:block;font-size:20px}.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:15px}.stat{background:#fff;color:var(--ink);padding:14px;border-radius:15px}.stat small,.stat strong{display:block}.stat small{color:#9a6815;font-weight:900}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:12px 18px;border-radius:13px;font-weight:900}.btn.primary{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#231c10}.btn.secondary{border:1px solid rgba(255,255,255,.28);color:#fff}.section{padding:68px 0}.section.white{background:#fff}.sectionHead{max-width:850px;margin-bottom:30px}.sectionHead.center{text-align:center;margin-left:auto;margin-right:auto}.sectionHead h2{font-size:clamp(28px,4vw,42px);line-height:1.25;margin:8px 0 10px;letter-spacing:-.025em}.sectionHead p{margin:0;color:var(--muted)}.g2,.g3,.g4{display:grid;gap:16px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}.card{background:#fff;border:1px solid var(--line);border-radius:19px;padding:22px;box-shadow:0 8px 28px rgba(15,23,42,.04)}.section.white .card{background:var(--soft)}.card h3{margin:8px 0 7px}.card p{margin:0;color:var(--muted);font-size:13px}.num{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:11px;background:#10223b;color:#fff;font-size:12px;font-weight:900}.bigCta{background:linear-gradient(135deg,#0b1728,#1b3657);border-radius:28px;color:#fff;padding:42px;text-align:center}.bigCta p{color:#d7e0eb}.bigCta .actions{justify-content:center}.bigCta .btn.secondary{border-color:rgba(255,255,255,.35)}.crumb{font-size:12px;color:#75849a;margin-bottom:18px}.hero .crumb{color:#c8d3e0}.crumb a{text-decoration:underline;text-underline-offset:3px}.footer{background:#071225;color:#b9c5d5;padding:42px 0;font-size:12px}.footgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}.footgrid strong{color:#fff}.footgrid a{display:block;margin:7px 0}.footbottom{display:flex;justify-content:space-between;gap:15px;margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1)}
.articleHero{background:linear-gradient(135deg,#071225,#17304e);color:#fff;padding:54px 0}.articleHero h1{font-size:clamp(33px,5vw,54px);line-height:1.25;letter-spacing:-.03em;margin:12px 0 14px}.articleHero .lead{max-width:860px}.meta{display:flex;gap:12px;flex-wrap:wrap;color:#c6d1df;font-size:12px}.articleLayout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:32px;align-items:start}.article{background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px;box-shadow:var(--shadow)}.article h2{font-size:28px;line-height:1.35;margin:38px 0 13px;padding-top:8px;border-top:1px solid var(--line)}.article h2:first-of-type{margin-top:15px;border-top:0}.article h3{font-size:20px;margin:26px 0 8px}.article p{margin:0 0 15px}.article ul,.article ol{padding-left:1.3em}.article li{margin:7px 0}.summaryBox,.checkBox,.noteBox{border-radius:16px;padding:18px 20px;margin:19px 0}.summaryBox{background:#fff8e8;border:1px solid #efd59b}.checkBox{background:#f4f7fb;border:1px solid #d9e1ec}.noteBox{background:#f7faf8;border:1px solid #d7e8dc}.article table{border-collapse:collapse;width:100%;margin:20px 0;font-size:13px}.article th,.article td{border:1px solid var(--line);padding:11px;text-align:left;vertical-align:top}.article th{background:#f5f6f8}.toc{position:sticky;top:90px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.toc strong{display:block;margin-bottom:8px}.toc a{display:block;color:#3b4e67;font-size:12px;padding:6px 0}.authorBox{margin-top:36px;border-top:1px solid var(--line);padding-top:20px;color:var(--muted);font-size:12px}.related{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.related a{display:block;border:1px solid var(--line);border-radius:14px;padding:14px;background:#fff}.hubGrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.hubCard{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px}.hubCard h2,.hubCard h3{margin:7px 0}.hubCard p{color:var(--muted);font-size:13px}.hubCard a.more{font-weight:900;color:#815a16}.listCards{display:grid;gap:12px}.listCard{display:block;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.listCard small{color:#976614;font-weight:900}.listCard strong{display:block;font-size:18px;margin-top:4px}.listCard span{display:block;color:var(--muted);font-size:12px;margin-top:5px}.price{font-size:34px;font-weight:950;color:#845c17}.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px 17px;margin-bottom:10px}.faq summary{font-weight:900;cursor:pointer}.faq p{color:var(--muted);font-size:13px}.serviceLinks{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px}.serviceLinks a{border:1px solid var(--line);background:#fff;padding:8px 11px;border-radius:999px;font-size:12px;font-weight:800}
@media(max-width:900px){.nav{display:none}.mobile{display:block}.heroIn,.articleLayout{grid-template-columns:1fr}.toc{position:static}.g4,.g3,.hubGrid{grid-template-columns:1fr 1fr}.footgrid{grid-template-columns:1fr}.hero{padding:52px 0}}
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