:root{--ink:#0f172a;--muted:#475569;--line:#e2e8f0;--brand:#0f766e;--brand2:#115e59;--soft:#f0fdfa}
*{box-sizing:border-box}body{margin:0;font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:#fff}
a{color:var(--brand)}.bar{display:flex;align-items:center;justify-content:space-between;max-width:1080px;margin:0 auto;padding:18px 24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--ink);text-decoration:none}
.bar nav a{margin-left:20px;color:var(--muted);text-decoration:none;font-size:15px}
main{max-width:1080px;margin:0 auto;padding:0 24px}.narrow{max-width:760px}
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;padding:40px 0 30px}
h1{font-size:44px;line-height:1.1;letter-spacing:-.02em;margin:0 0 16px}.narrow h1{font-size:32px}
h2{font-size:30px;letter-spacing:-.01em;margin:56px 0 14px}h3{margin:0 0 6px;font-size:18px}
.lead{font-size:20px;color:var(--muted);margin:0 0 22px}
.btn{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;padding:12px 20px;border-radius:10px;font-weight:600;border:0;cursor:pointer;font-size:16px}
.btn:hover{background:var(--brand2)}.btn.ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.muted{color:var(--muted);font-size:15px}.shot{width:100%;border:1px solid var(--line);border-radius:14px;box-shadow:0 10px 30px rgba(15,23,42,.08)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{border:1px solid var(--line);border-radius:14px;padding:20px}
.steps{counter-reset:s;list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.steps li{border:1px solid var(--line);border-radius:14px;padding:20px 20px 20px 20px;position:relative}
.steps li:before{counter-increment:s;content:counter(s);display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--soft);color:var(--brand);font-weight:700;margin-bottom:8px}
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.price{border:1px solid var(--line);border-radius:16px;padding:24px;display:flex;flex-direction:column}
.price.best{border:2px solid var(--brand);background:var(--soft)}.price .amt{font-size:38px;font-weight:800;margin:6px 0}.price ul{padding-left:18px;flex:1}.price .btn{text-align:center}
table.cols{border-collapse:collapse;width:100%;font-size:15px}table.cols td,table.cols th{border-bottom:1px solid var(--line);padding:6px 8px;text-align:left}
.notice{background:#fffbeb;border:1px solid #fde68a;border-radius:12px;padding:16px 18px;font-size:15px}
details{border-bottom:1px solid var(--line);padding:12px 0}summary{cursor:pointer;font-weight:600}
.foot{max-width:1080px;margin:60px auto 0;padding:24px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.keybox{display:flex;gap:10px;align-items:center;background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:12px;margin:14px 0}
.keybox code{flex:1;word-break:break-all;font-size:13px}.keybox button{background:var(--brand);color:#fff;border:0;border-radius:8px;padding:8px 12px;cursor:pointer}
code{background:#f1f5f9;padding:1px 5px;border-radius:5px}
@media(max-width:820px){.hero,.grid3,.steps,.pricing{grid-template-columns:1fr}h1{font-size:34px}.bar nav{display:none}}