:root{--ink:#1d2a36;--muted:#55636f;--line:#d9e0e6;--bg:#f7f9fa;--card:#fff;--brand:#1f5f7a;--brand-d:#174a5f;--accent:#e8f1f5;--warn:#fff7e0;--warn-line:#e6cf85;--err:#a12a2a}
*{box-sizing:border-box}
body{margin:0;font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand)}a:hover{color:var(--brand-d)}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
header.site{background:#fff;border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.logo{font-weight:700;font-size:20px;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:8px}
.logo svg{width:26px;height:26px}
nav a{margin-left:18px;color:var(--muted);text-decoration:none;font-size:15px}nav a:hover{color:var(--ink)}
.hero{padding:56px 0 40px}
.hero h1{font-size:40px;line-height:1.2;margin:0 0 16px;max-width:780px}
.hero p.lead{font-size:20px;color:var(--muted);max-width:720px;margin:0 0 24px}
.btn{display:inline-block;background:var(--brand);color:#fff;padding:12px 20px;border-radius:6px;text-decoration:none;font-weight:600;border:0;font-size:16px;cursor:pointer}
.btn:hover{background:var(--brand-d);color:#fff}
.btn.secondary{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.btn.secondary:hover{background:var(--accent);color:var(--brand-d)}
.facts{display:flex;gap:24px;flex-wrap:wrap;margin-top:26px;color:var(--muted);font-size:15px;padding:0;list-style:none}
.facts li::before{content:"✓ ";color:var(--brand);font-weight:700}
section{padding:44px 0;border-top:1px solid var(--line)}
section h2{font-size:28px;margin:0 0 8px}
section .sub{color:var(--muted);margin:0 0 26px;max-width:760px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:22px;display:flex;flex-direction:column}
.card h3{margin:0 0 4px;font-size:19px}
.price{font-size:28px;font-weight:700;margin:6px 0 10px}
.price small{font-size:14px;font-weight:400;color:var(--muted)}
.card ul{padding-left:18px;margin:0 0 18px;color:var(--muted);font-size:15px;flex:1}
.card.featured{border:2px solid var(--brand)}
.tag{display:inline-block;background:var(--accent);color:var(--brand-d);font-size:12px;font-weight:700;padding:2px 8px;border-radius:20px;text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}
.steps{counter-reset:s;list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.steps li{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px 18px 18px 58px;position:relative}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:18px;top:18px;width:28px;height:28px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;text-align:center;line-height:28px}
.notice{background:var(--warn);border:1px solid var(--warn-line);border-radius:8px;padding:12px 16px;font-size:15px;margin:0 0 18px}
.sample{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px;margin-bottom:22px;overflow-x:auto}
.sample h3{margin-top:0}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
th{background:var(--bg);font-weight:600}
.ph{color:#8a96a0;font-style:italic}
.cite{font-size:13px;color:var(--muted)}
details{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px 18px;margin-bottom:10px}
details summary{font-weight:600;cursor:pointer}
details p{margin:10px 0 0;color:var(--ink)}
footer.site{padding:30px 0 50px;color:var(--muted);font-size:14px;border-top:1px solid var(--line);background:#fff}
footer.site .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer.site a{color:var(--muted);margin-right:14px}
.prose{max-width:760px;padding:40px 0}
.prose h1{font-size:32px}.prose h2{font-size:22px;margin-top:30px}
form.order{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px;max-width:720px}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;margin-bottom:4px}
.field .hint{font-size:14px;color:var(--muted);margin:0 0 6px}
input[type=text],input[type=email],select,textarea{width:100%;padding:10px 12px;border:1px solid #b9c4cc;border-radius:6px;font:inherit;background:#fff}
textarea{min-height:110px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:1px}
.row{display:grid;grid-template-columns:1fr 1fr 110px;gap:12px}
@media(max-width:640px){.row{grid-template-columns:1fr}.hero h1{font-size:30px}nav a{margin-left:12px}}
.err{color:var(--err);font-size:14px;margin-top:4px;min-height:0}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--err)}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.summary{background:var(--accent);border-radius:8px;padding:14px 18px;margin-bottom:20px}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400}
.check input{margin-top:6px}
.formmsg{margin-top:14px;font-weight:600}

.guarantee{margin:14px 0 0;color:var(--ink)}
.pcards{border:0;padding:0;margin:0;display:grid;gap:10px}.pcards legend{font-weight:600;margin-bottom:8px}
.pcard{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:10px;padding:12px 14px;cursor:pointer;background:#fff}
.pcard:has(input:checked){border-color:#1f5f7a;box-shadow:0 0 0 2px rgba(31,95,122,.15)}.pcard input{margin-top:4px}.pprice{float:right;font-weight:600}
.samples li{margin:8px 0}
.signup{margin:32px 0;padding:18px;border:1px solid var(--line);border-radius:10px;background:#fff}.signup h3{margin-top:0}.signup input[type=email]{max-width:340px}
.prose table{border-collapse:collapse;margin:12px 0}.prose th,.prose td{border:1px solid var(--line);padding:6px 10px;text-align:left}
.prose blockquote{border-left:3px solid var(--line);margin:12px 0;padding:2px 14px;color:var(--muted)}