:root{font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Noto Sans JP",sans-serif;color:#172c48;background:#f8fbff;font-synthesis:none}*{box-sizing:border-box}body{margin:0;line-height:1.85}a{color:#175dc0;text-underline-offset:4px}a:focus-visible,summary:focus-visible{outline:3px solid #1f6cda;outline-offset:5px}header{display:flex;justify-content:space-between;gap:18px;max-width:1080px;margin:auto;padding:22px 28px;border-bottom:1px solid #dce5f1}header a{text-decoration:none;font-weight:650}main{max-width:940px;margin:auto;padding:0 28px}section{padding:48px 0}section+section{border-top:1px solid #dce5f1}.hero{padding:70px 0 48px;background:radial-gradient(ellipse at 85% 30%,#e3eeff,transparent 60%)}h1{font-size:clamp(34px,5vw,58px);line-height:1.4;letter-spacing:-.035em;margin:12px 0 24px}h2{font-size:28px;margin:0 0 24px}h3{font-size:20px;margin:0 0 8px}.eyebrow{letter-spacing:.18em;color:#3263aa;font-size:14px}.notice{padding:18px 22px;border-left:4px solid #7298ca;background:#edf3fb;font-size:15px;max-width:650px}.price-card{background:white;border:1px solid #cfdded;border-radius:20px;padding:32px}.price-card p{margin:10px 0}.price-card strong{font-size:clamp(26px,5vw,44px);line-height:1.45}.price-card strong span{font-size:17px;padding-left:6px}.steps{counter-reset:steps;list-style:none;padding:0;margin:0;display:grid;gap:25px}.steps li{counter-increment:steps;position:relative;padding-left:64px}.steps li:before{content:counter(steps);position:absolute;left:0;top:0;width:42px;height:42px;border-radius:50%;background:#e5efff;color:#215aa6;text-align:center;line-height:42px;font-weight:700}.steps p{margin:0}details{border-bottom:1px solid #dce5f1;padding:20px 0}summary{cursor:pointer;font-weight:650}details p{margin:14px 0 0}.button{display:inline-block;padding:13px 26px;background:#195dc0;border-radius:30px;color:white;text-decoration:none}.contact{text-align:center}footer{max-width:940px;margin:auto;padding:28px;border-top:1px solid #dce5f1;font-size:13px;color:#536781}@media(max-width:540px){header{padding:18px;font-size:14px}main{padding:0 20px}section{padding:34px 0}.hero{padding-top:42px}.price-card{padding:22px}.steps li{padding-left:54px}h2{font-size:25px}}

/* Shared NOA dark palette and system typography. */
:root{color:#e7edf5;background:#080d16;font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Hiragino Kaku Gothic ProN",sans-serif}body{background:radial-gradient(ellipse at 85% 5%,#12385877,transparent 45%),#080d16}header{border-color:#ffffff25;max-width:1200px;align-items:center}header img{width:160px;height:auto}a{color:#9bdcff}.hero{background:radial-gradient(ellipse at 85% 30%,#18527a44,transparent 65%)}.eyebrow{color:#a9cfe8}.notice{color:#c6d7e9;background:#112136;border-color:#55b9ff}.price-card{background:linear-gradient(135deg,#142235,#0b1320);border-color:#ffffff25;text-align:center}.price-card strong{color:#c6ebff}.steps li:before{background:#12304d;color:#9edcff}section+section,details,footer{border-color:#ffffff25}footer{color:#aebccd}.button{background:#0788ef}p{color:#becbda}h1,h2,h3{color:#edf2fa}