:root{--navy:#082f59;--blue:#0b86de;--cyan:#1db9ea;--ice:#eef9ff;--line:#d7eaf5;--muted:#60788c;--shadow:0 12px 30px rgba(18,82,124,.08)}
*{box-sizing:border-box}html{background:#f4f9fc;scroll-behavior:smooth}body{margin:0;color:var(--navy);font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Hiragino Sans","Yu Gothic","Noto Sans JP",sans-serif;background:linear-gradient(180deg,#fff 0%,#f6fbfe 100%);-webkit-font-smoothing:antialiased}
a{color:inherit}.shell{width:min(100%,760px);margin:0 auto;padding:0 16px 48px}.topbar{height:68px;display:flex;align-items:center;justify-content:space-between}.brand{text-decoration:none;font-size:21px;font-weight:900;letter-spacing:.045em}.brand span{color:#13a9df}.back{font-size:12px;font-weight:850;text-decoration:none;color:#44718f}
.hero{padding:25px 20px;border-radius:22px;background:linear-gradient(135deg,#0b79d5,#55c2ec);color:#fff;box-shadow:0 16px 34px rgba(11,121,213,.18)}.eyebrow{font-size:9px;font-weight:900;letter-spacing:.22em;opacity:.88}.hero h1{margin:8px 0 0;font-size:29px;line-height:1.34;letter-spacing:-.045em}.hero p{margin:12px 0 0;font-size:13px;line-height:1.8;color:#eaf8ff;font-weight:650}
.quick{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:12px}.quick div{background:#fff;border:1px solid var(--line);border-radius:13px;padding:11px 8px;text-align:center;box-shadow:var(--shadow)}.quick small{display:block;font-size:8px;color:#7c91a2}.quick strong{display:block;margin-top:3px;font-size:11px;color:#17466c}
.section{margin-top:14px;background:#fff;border:1px solid var(--line);border-radius:17px;padding:17px;box-shadow:var(--shadow)}.section .kicker{font-size:8px;font-weight:950;letter-spacing:.18em;color:#2d9ed2}.section h2{margin:5px 0 8px;font-size:20px;line-height:1.4;letter-spacing:-.03em}.section p{margin:7px 0;color:#526d82;font-size:13px;line-height:1.85}.points{display:grid;gap:8px;margin-top:10px}.point{padding:11px 12px;border-radius:11px;background:#f6fbfe;border:1px solid #e1eef5}.point strong{display:block;font-size:12px}.point span{display:block;margin-top:4px;color:#6c8192;font-size:11px;line-height:1.65}
.ctas{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:16px}.btn{display:flex;align-items:center;justify-content:center;min-height:50px;border-radius:13px;text-decoration:none;font-size:13px;font-weight:900}.btn.primary{background:linear-gradient(90deg,#13a7dd,#0879dd);color:#fff}.btn.secondary{background:#fff;border:1.5px solid #acd4e9;color:#0a6ead}
.related{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}.related a{text-decoration:none;font-size:10px;font-weight:850;padding:7px 9px;border-radius:999px;background:#eef8fd;color:#316b8f;border:1px solid #d7eaf4}.note{margin-top:14px;padding:13px 14px;border-radius:12px;background:#f7f9fa;color:#788995;font-size:10.5px;line-height:1.75}.source{margin-top:9px;font-size:10px;color:#8091a0}.source a{color:#467595}
footer{padding:26px 4px 0;text-align:center;color:#8797a4;font-size:9.5px;line-height:1.7}
@media(max-width:430px){.shell{padding-left:13px;padding-right:13px}.hero{padding:22px 17px}.hero h1{font-size:26px}.section{padding:15px}.ctas{grid-template-columns:1fr}.quick strong{font-size:10.5px}}
@media(max-width:360px){.quick{grid-template-columns:1fr}.hero h1{font-size:24px}}