:root{--primary:#1f3a5f;--accent:#c8641f;--tint:#edf2f8}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",Meiryo,Roboto,Arial,sans-serif;color:#1d2430;background:#fff;line-height:1.75;font-size:16px}
a{color:var(--primary)}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:#fff;padding:8px;z-index:10}
.site-head{border-bottom:1px solid #e3e7ee;background:#fff;position:sticky;top:0;z-index:5}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#1d2430}
.logo-mark{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:8px;background:var(--primary);color:#fff;font-weight:700;font-size:15px}
.logo-text{font-weight:700;line-height:1.2;font-size:17px}
.logo-text small{display:block;font-weight:400;font-size:12px;color:#5b6576}
.nav a{text-decoration:none;color:#1d2430;font-size:14px;padding:6px 10px;border-radius:6px;white-space:nowrap}
.nav a:hover,.nav a[aria-current]{background:var(--tint);color:var(--primary)}
.nav .lang{border:1px solid #cfd6e1;margin-left:6px}
.nav-wide{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.nav-toggle{display:none}
@media (max-width:860px){
 .nav-wide{display:none}
 .nav-toggle{display:block;position:relative}
 .nav-toggle summary{list-style:none;cursor:pointer;border:1px solid #cfd6e1;border-radius:6px;padding:6px 12px;font-size:14px}
 .nav-toggle summary::-webkit-details-marker{display:none}
 .nav-toggle .nav{position:absolute;right:0;top:44px;background:#fff;border:1px solid #e3e7ee;border-radius:8px;padding:8px;display:flex;flex-direction:column;min-width:220px;box-shadow:0 8px 24px rgba(0,0,0,.08)}
 .nav-toggle .nav a{padding:10px 12px}
}
.hero{background:var(--primary);background-size:cover;background-position:center;color:#fff;padding:72px 0 64px}
.hero h1{font-size:clamp(26px,4.4vw,42px);line-height:1.3;margin:8px 0 16px;max-width:780px}
.hero .lead{font-size:17px;max-width:700px;opacity:.95}
.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:13px;opacity:.85;margin:0}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;padding:12px 20px;border-radius:8px;font-weight:600;margin:4px 6px 4px 0}
.btn:hover{color:#fff;filter:brightness(1.08)}
.btn-alt{background:#25a35a}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.7)}
main{padding:32px 0 56px}
.prose{max-width:860px}
.t-home .prose{max-width:1080px}
.prose h1{font-size:clamp(24px,3.6vw,34px);line-height:1.35;margin:8px 0 12px}
.prose h2{font-size:clamp(20px,2.6vw,25px);line-height:1.4;margin:44px 0 12px;padding-bottom:6px;border-bottom:2px solid var(--tint)}
.prose h3{font-size:18px;margin:28px 0 8px}
.prose p,.prose li{font-size:16px}
.meta{color:#5b6576;font-size:13px;margin-top:0}
.crumbs{font-size:13px;color:#5b6576}
.crumbs a{color:#5b6576}
.table-wrap{overflow-x:auto;margin:16px 0;border:1px solid #e3e7ee;border-radius:8px}
table{border-collapse:collapse;width:100%;font-size:14.5px}
table.wide{min-width:560px}
th,td{padding:10px 12px;border-bottom:1px solid #e3e7ee;text-align:left;vertical-align:top}
th{background:var(--tint);font-weight:600}
tr:last-child td{border-bottom:0}
figure{margin:24px 0}
figure img{border-radius:10px;width:100%}
figcaption{font-size:13px;color:#5b6576;margin-top:6px}
.diagram svg{width:100%;height:auto;border:1px solid #e3e7ee;border-radius:10px;background:#fbfcfe}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin:18px 0}
.card{display:block;border:1px solid #e3e7ee;border-radius:10px;padding:16px;text-decoration:none;color:#1d2430;transition:border-color .15s}
.card:hover{border-color:var(--accent);color:#1d2430}
.card strong{display:block;color:var(--primary);margin-bottom:6px;font-size:16.5px}
.card span{font-size:14px;color:#4a5363;line-height:1.6}
.cta{background:var(--tint);border-radius:12px;padding:22px 22px 14px;margin:40px 0 8px}
.cta h2{margin-top:0;border:0;padding:0}
.cta-mail{font-size:13px;color:#5b6576}
.faq details{border:1px solid #e3e7ee;border-radius:8px;margin:10px 0;padding:0 14px}
.faq summary{cursor:pointer;font-weight:600;padding:12px 0}
.faq details div{padding-bottom:6px}
.note{background:#fff8e6;border-left:4px solid #e2a400;padding:10px 14px;border-radius:6px;font-size:14.5px}
.site-foot{background:#141a24;color:#c9d1dd;padding:36px 0 24px;font-size:14px}
.site-foot .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.site-foot a{color:#fff}
.site-foot nav{display:flex;flex-direction:column;gap:4px}
.site-foot .copy{grid-column:1/-1;color:#8792a3;font-size:12.5px;margin:12px 0 0}