:root{--ink:#15212a;--orange:#f36b45;--yellow:#ffc94a;--paper:#f4f5f3;--line:#dfe4e3;--muted:#68747b}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP",sans-serif;line-height:1.75}.wrap{width:min(920px,calc(100% - 36px));margin:auto}.nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:2}.nav .wrap{display:flex;align-items:center;justify-content:space-between;min-height:64px}.brand{font-size:20px;font-weight:900}.brand b{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:11px;background:var(--yellow);margin-right:8px}.nav a,.links a{color:var(--ink);font-weight:700;text-decoration:none;margin-left:16px}.hero{padding:72px 0 50px}.hero h1{font-size:clamp(38px,8vw,72px);line-height:1.12;letter-spacing:-.04em;margin:12px 0}.eyebrow{color:var(--orange);font-weight:900;letter-spacing:.12em;font-size:13px}.lead{font-size:18px;color:var(--muted);max-width:650px}.button{display:inline-block;background:var(--ink);color:#fff!important;text-decoration:none;border-radius:14px;padding:12px 20px;font-weight:900;margin:14px 8px 0 0}.button.orange{background:var(--orange)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}.card h2,.card h3{margin-top:0}.section{padding:26px 0}.steps{counter-reset:step}.steps .card:before{counter-increment:step;content:counter(step);display:grid;place-items:center;width:32px;height:32px;border-radius:10px;background:var(--yellow);font-weight:900;margin-bottom:14px}.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin:10px 0;padding:14px 18px}.faq summary{font-weight:900;cursor:pointer}.notice{background:#fff5d8;border-radius:16px;padding:18px}.legal h2{margin-top:2em}.legal h3{margin-top:1.5em}.legal li{margin-bottom:.5em}.updated{color:var(--muted);font-size:13px}footer{margin-top:50px;background:var(--ink);color:#dfe5e7;padding:35px 0}footer a{color:#fff}@media(max-width:700px){.grid{grid-template-columns:1fr}.nav .links a:not(:last-child){display:none}.hero{padding-top:48px}.card{padding:20px}}