:root{
  --navy:#071b36;
  --navy-2:#0b274c;
  --navy-3:#12365f;
  --blue:#167ac6;
  --blue-light:#5aa7e1;
  --ink:#152238;
  --muted:#6c7b8f;
  --line:#d9e6f1;
  --bg:#f4f8fc;
  --white:#fff;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Tahoma,sans-serif;color:var(--ink);background:var(--bg)}
a{color:inherit}
.seo-header{height:82px;background:linear-gradient(135deg,var(--navy),var(--navy-2));display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100% - 1180px)/2));color:#fff;border-bottom:1px solid rgba(255,255,255,.08);box-shadow:0 8px 24px rgba(7,27,54,.12)}
.seo-header>a{display:flex;align-items:center}
.seo-header img{width:145px;max-height:46px;object-fit:contain;filter:drop-shadow(0 3px 8px rgba(0,0,0,.16))}
.seo-header nav{display:flex;gap:22px;align-items:center}
.seo-header a{text-decoration:none;font-size:13px;font-weight:800}
.seo-header nav>a:not(.cta){color:#dce8f3}
.seo-header nav>a:not(.cta):hover{color:#fff}
.seo-header .cta{background:var(--blue);color:#fff;padding:11px 16px;border-radius:10px;box-shadow:0 8px 22px rgba(22,122,198,.24)}
.seo-wrap{max-width:1180px;margin:auto;padding:38px 24px 70px}
.crumbs{font-size:12px;color:var(--muted);margin-bottom:24px}
.crumbs a{text-decoration:none;color:var(--blue);font-weight:800}
.seo-hero,.category-head{background:linear-gradient(135deg,var(--navy),var(--navy-2) 58%,var(--navy-3));color:#fff;border:1px solid rgba(255,255,255,.08);border-radius:24px;box-shadow:0 22px 55px rgba(7,27,54,.16)}
.seo-hero{padding:46px;display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center}
.seo-hero small,.category-head small{color:#75b8e9;font-weight:900;letter-spacing:.14em}
.seo-hero h1{font-size:48px;line-height:1.05;margin:10px 0 18px}
.seo-hero p,.category-head p{color:#c8d7e7;line-height:1.8;font-size:16px}
.seo-hero img{width:100%;height:330px;object-fit:contain;background:#f8fbfe;border:1px solid rgba(255,255,255,.15);border-radius:18px;padding:18px;box-shadow:0 15px 38px rgba(0,0,0,.13)}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.badges span{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.12);padding:8px 11px;border-radius:999px;font-size:11px;font-weight:800;color:#eef6fd}
.actions{display:flex;gap:10px;margin-top:24px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;padding:12px 16px;border-radius:10px;font-size:12px;font-weight:900;transition:.18s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 22px rgba(22,122,198,.24)}
.btn-light{background:#fff;color:var(--navy);border:1px solid #d9e6f1}
.seo-hero .btn-light,.category-head .btn-light{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.24)}
.section{padding:36px 0}
.section h2{font-size:30px;margin:0 0 10px;color:var(--navy)}
.section>p{color:var(--muted);line-height:1.8;max-width:850px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:17px;text-decoration:none;box-shadow:0 10px 28px rgba(7,27,54,.06);transition:.18s ease;overflow:hidden}
.card:hover{transform:translateY(-3px);border-color:#b9d7ec;box-shadow:0 16px 36px rgba(7,27,54,.1)}
.card img{width:100%;height:210px;object-fit:contain;background:#f7fafd;border-radius:12px}
.card small{color:var(--blue);font-weight:900;letter-spacing:.03em}
.card h3{margin:9px 0 5px;color:var(--navy)}
.card p{color:var(--muted);font-size:12px;line-height:1.6}
.specs{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.specs div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px;font-size:13px;box-shadow:0 6px 18px rgba(7,27,54,.035)}
.seo-footer{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#9fb0c2;padding:34px 24px;text-align:center;font-size:12px}
.seo-footer a{color:#fff}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:10px 0}
.faq summary{font-weight:900;cursor:pointer;color:var(--navy)}
.faq p{color:var(--muted);line-height:1.7}
.category-head{padding:40px 42px}
.category-head h1{font-size:42px;margin:10px 0 12px}
.category-head p{max-width:900px}
@media(max-width:820px){.seo-header nav a:not(.cta){display:none}.seo-hero{grid-template-columns:1fr;padding:28px}.seo-hero h1{font-size:36px}.seo-hero img{height:260px}.grid{grid-template-columns:1fr 1fr}.specs{grid-template-columns:1fr}.category-head{padding:30px}}
@media(max-width:560px){.grid{grid-template-columns:1fr}.seo-wrap{padding-left:16px;padding-right:16px}.seo-hero h1{font-size:32px}.category-head h1{font-size:34px}.seo-header{padding:0 16px}.seo-header img{width:125px}}

/* v1.5.6 logo visibility treatment — option 1 */
.seo-header>a:first-child{
  background:linear-gradient(90deg,rgba(22,122,198,.36),rgba(22,122,198,.16));
  border:1px solid rgba(103,176,232,.30);
  border-radius:12px;
  padding:7px 12px;
  box-shadow:0 10px 28px rgba(0,0,0,.10);
}
.seo-header>a:first-child img{width:150px;max-height:46px}
@media(max-width:560px){
  .seo-header>a:first-child{padding:6px 9px}
  .seo-header>a:first-child img{width:126px}
}