:root{--paper:#f5f2ea;--ink:#252f40;--line:#d4d6ce;--muted:#566272;--accent:#174f68}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 system-ui,sans-serif}header,main,footer{max-width:1160px;margin:auto;padding:28px 30px}header{display:flex;justify-content:space-between;gap:25px;border-bottom:1px solid var(--line)}.brand{font-weight:800;text-decoration:none;color:var(--ink)}nav{display:flex;gap:22px;flex-wrap:wrap;font-size:14px}a{color:var(--accent);text-underline-offset:4px}h1{font-size:clamp(34px,5vw,60px);line-height:1.08;letter-spacing:-1.8px;max-width:850px;margin:20px 0 25px}h2{line-height:1.25;font-size:24px;letter-spacing:-.4px}.lede{font-size:20px;color:var(--muted);max-width:760px}.kicker{font-size:12px;font-weight:750;letter-spacing:1.4px;text-transform:uppercase;color:var(--accent)}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin:30px 0}.card{background:#fff;border:1px solid var(--line);padding:28px;border-radius:12px;margin:0 0 24px}.card h2{margin-top:0}.price{font-size:25px;font-weight:780;letter-spacing:-.5px}.button,button{font:650 14px system-ui;background:white;border:1px solid var(--line);padding:13px 18px;border-radius:6px;text-decoration:none;color:var(--ink);display:inline-block;min-height:44px}.primary{background:var(--accent);color:white;border-color:var(--accent)}button:disabled{background:#e2e4df;color:#637078;cursor:default}.actions{display:flex;gap:10px;flex-wrap:wrap}.hero{display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:start;margin:26px 0}.purchase{padding:26px;border:1px solid #a9b8c0;border-radius:12px;background:#eaf0ed}.muted{font-size:14px;color:var(--muted)}.notice{padding:18px;background:#e4ece8;border-left:4px solid var(--accent);border-radius:5px;font-size:14px}.article{max-width:830px;margin:auto}.article li{margin-bottom:13px}.faq{margin:30px 0}details{padding:16px 0;border-bottom:1px solid var(--line)}summary{font-weight:650;cursor:pointer}footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:13px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #bd631b;outline-offset:4px}code{font:13px ui-monospace,Consolas,monospace;overflow-wrap:anywhere}@media(max-width:700px){header,main,footer{padding:22px 18px}header{flex-direction:column;gap:9px}.grid,.hero{grid-template-columns:1fr;gap:15px}.card,.purchase{padding:22px}h1{letter-spacing:-1px}.lede{font-size:18px}}