:root {
  --navy: #0c3480;
  --navy-dark: #082460;
  --navy-soft: #eef3fc;
  --red: #d4232a;
  --red-dark: #b01c22;
  --text: #16202e;
  --muted: #5b6472;
  --line: #e3e8f0;
  --bg: #ffffff;
  --bg-soft: #f6f8fc;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(12, 52, 128, .06), 0 8px 24px rgba(12, 52, 128, .07);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--font); color: var(--text); background: var(--bg);
  font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--red); }
h1, h2, h3, h4 { line-height: 1.25; margin: 0; font-weight: 600; letter-spacing: -.01em; }
h1 { font-size: clamp(28px, 4vw, 44px); }
h2 { font-size: clamp(23px, 3vw, 32px); }
h3 { font-size: 19px; }
p { margin: 0 0 1em; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 820px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* header */
.nav { background: var(--navy); position: sticky; top: 0; z-index: 60; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; }
.brand:hover { color: #fff; }
.brand img { height: 36px; width: auto; background: #fff; border-radius: 6px; padding: 2px 4px; }
.brand-txt { line-height: 1.1; }
.brand-txt b { display: block; font-size: 17px; letter-spacing: .08em; }
.brand-txt span { font-size: 10.5px; color: #a9bde0; letter-spacing: .04em; }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links > a, .drop > a {
  color: #dce6f7; font-size: 14.5px; padding: 10px 13px; border-radius: 8px;
  display: inline-flex; align-items: center; gap: 5px;
}
.nav-links > a:hover, .drop > a:hover, .nav-links > a.on { color: #fff; background: rgba(255,255,255,.1); }
.drop { position: relative; }
.drop-menu {
  position: absolute; top: 100%; left: 0; min-width: 268px; background: #fff;
  border-radius: 10px; box-shadow: 0 12px 32px rgba(8, 36, 96, .18); padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(-6px); transition: .18s ease;
  border: 1px solid var(--line);
}
.drop:hover .drop-menu, .drop:focus-within .drop-menu { opacity: 1; visibility: visible; transform: none; }
.drop-menu a { display: block; padding: 10px 12px; border-radius: 7px; font-size: 14.5px; color: var(--text); }
.drop-menu a small { display: block; color: var(--muted); font-size: 12px; margin-top: 1px; }
.drop-menu a:hover { background: var(--navy-soft); color: var(--navy); }
.nav-cta {
  background: var(--red); color: #fff !important; padding: 9px 18px !important;
  border-radius: 8px; font-weight: 600; margin-left: 8px;
}
.nav-cta:hover { background: var(--red-dark); }
.burger {
  display: none; background: none; border: 0; color: #fff; padding: 8px; cursor: pointer;
}
@media (max-width: 960px) {
  .nav-links {
    display: none; position: absolute; top: 72px; left: 0; right: 0; background: var(--navy-dark);
    flex-direction: column; align-items: stretch; padding: 10px 16px 20px; gap: 2px;
    max-height: calc(100vh - 72px); overflow-y: auto;
  }
  .nav-links.open { display: flex; }
  .nav-links > a, .drop > a { padding: 12px; }
  .drop-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; background: rgba(255,255,255,.06); border: 0; }
  .drop-menu a { color: #dce6f7; }
  .drop-menu a small { color: #8fa8d4; }
  .drop-menu a:hover { background: rgba(255,255,255,.1); color: #fff; }
  .burger { display: block; }
  .nav-cta { margin: 8px 0 0; text-align: center; }
}

/* hero */
.hero { position: relative; background: var(--navy-dark); color: #fff; overflow: hidden; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(105deg, rgba(8,36,96,.94) 0%, rgba(8,36,96,.78) 48%, rgba(8,36,96,.42) 100%);
}
.hero img.bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-inner { position: relative; z-index: 2; padding: 84px 0 76px; max-width: 760px; }
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero p { font-size: 17.5px; color: #cddcf3; max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-facts {
  position: relative; z-index: 2; display: flex; flex-wrap: wrap; gap: 0;
  border-top: 1px solid rgba(255,255,255,.16);
}
.hero-facts div { padding: 20px 40px 22px 0; margin-right: 40px; border-right: 1px solid rgba(255,255,255,.16); }
.hero-facts div:last-child { border-right: 0; }
.hero-facts b { display: block; font-size: 22px; color: #fff; }
.hero-facts span { font-size: 13px; color: #a9bde0; }
@media (max-width: 720px) {
  .hero-inner { padding: 56px 0 48px; }
  .hero-facts div { padding: 16px 24px 18px 0; margin-right: 24px; }
  .hero-facts b { font-size: 18px; }
}

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 9px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; cursor: pointer; transition: .16s ease;
}
.btn-primary { background: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-dark); color: #fff; }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-dark); color: #fff; }
.btn-ghost { border-color: rgba(255,255,255,.4); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); color: #fff; }
.btn-outline { border-color: var(--line); color: var(--navy); background: #fff; }
.btn-outline:hover { border-color: var(--navy); color: var(--navy); }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* sections */
.section { padding: 68px 0; }
.section.soft { background: var(--bg-soft); }
.eyebrow {
  color: var(--red); font-size: 12.5px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; margin-bottom: 10px;
}
.sec-head { max-width: 720px; margin-bottom: 40px; }
.sec-head p { color: var(--muted); margin: 12px 0 0; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* grids */
.grid { display: grid; gap: 22px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .g4 { grid-template-columns: repeat(2, 1fr); } .g3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .g2, .g3, .g4 { grid-template-columns: 1fr; } }

/* cards */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; transition: .18s ease;
}
.card:hover { box-shadow: var(--shadow); border-color: #cfd9ea; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 14.5px; margin: 0; }
.card .num {
  width: 38px; height: 38px; border-radius: 9px; background: var(--navy-soft); color: var(--navy);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; margin-bottom: 16px;
}
.card-navy { background: var(--navy); border-color: var(--navy); color: #fff; }
.card-navy h3 { color: #fff; }
.card-navy p { color: #b9cbec; }
.card-navy:hover { border-color: var(--navy); }
.card-navy .num { background: rgba(255,255,255,.14); color: #fff; }
a.card { display: block; color: inherit; }
a.card:hover { color: inherit; }

/* product card */
.pcard {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column; transition: .18s ease;
}
.pcard:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: #cfd9ea; }
.pcard-img { aspect-ratio: 4 / 3; background: var(--bg-soft); overflow: hidden; position: relative; }
.pcard-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.pcard:hover .pcard-img img { transform: scale(1.04); }
.pcard-noimg {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  color: #a9b3c4; font-size: 12.5px; text-align: center; padding: 16px; background: repeating-linear-gradient(45deg, #f6f8fc, #f6f8fc 10px, #eff3fa 10px, #eff3fa 20px);
}
.pcard-body { padding: 18px 20px 22px; flex: 1; display: flex; flex-direction: column; }
.pcard-line { font-size: 11.5px; color: var(--red); font-weight: 700; letter-spacing: .07em; text-transform: uppercase; }
.pcard-body h3 { font-size: 17px; margin: 6px 0 8px; color: var(--navy); }
.pcard-body p { color: var(--muted); font-size: 13.8px; margin: 0 0 14px; flex: 1; }
.pcard-link { font-size: 14px; font-weight: 600; color: var(--navy); }
.pcard:hover .pcard-link { color: var(--red); }

/* product detail */
.breadcrumb { font-size: 13px; color: var(--muted); padding: 18px 0 0; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--red); }
.breadcrumb span { margin: 0 7px; color: #b9c3d3; }
.pd { padding: 28px 0 64px; }
.pd-top { display: grid; grid-template-columns: 1.05fr 1fr; gap: 44px; align-items: start; }
@media (max-width: 900px) { .pd-top { grid-template-columns: 1fr; gap: 28px; } }
.gallery { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--bg-soft); }
.gallery .main { aspect-ratio: 4 / 3; background: #fff; }
.gallery .main img { width: 100%; height: 100%; object-fit: contain; }
.thumbs { display: flex; gap: 8px; padding: 10px; border-top: 1px solid var(--line); overflow-x: auto; }
.thumbs button {
  flex: 0 0 64px; height: 52px; padding: 0; border: 2px solid var(--line); border-radius: 7px;
  overflow: hidden; background: #fff; cursor: pointer;
}
.thumbs button.on { border-color: var(--red); }
.thumbs img { width: 100%; height: 100%; object-fit: cover; }
.pd h1 { font-size: clamp(25px, 3vw, 35px); color: var(--navy); margin-bottom: 14px; }
.pd-summary { font-size: 16.5px; color: #364152; }
.pd-meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 26px; }
.tag {
  font-size: 12.5px; background: var(--navy-soft); color: var(--navy);
  padding: 6px 12px; border-radius: 100px; font-weight: 500;
}
.pd-blocks { margin-top: 48px; display: grid; grid-template-columns: 1.6fr 1fr; gap: 44px; align-items: start; }
@media (max-width: 900px) { .pd-blocks { grid-template-columns: 1fr; gap: 32px; } }
.panel { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: #fff; }
.panel h3 { font-size: 16px; margin-bottom: 16px; }
.checks { list-style: none; padding: 0; margin: 0; }
.checks li { position: relative; padding-left: 26px; margin-bottom: 11px; font-size: 14.5px; color: #364152; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 13px; height: 7px;
  border-left: 2px solid var(--red); border-bottom: 2px solid var(--red); transform: rotate(-45deg);
}
.applist { display: flex; flex-wrap: wrap; gap: 8px; }
.applist span { font-size: 13.5px; border: 1px solid var(--line); border-radius: 7px; padding: 7px 12px; color: var(--muted); }
.specs { width: 100%; border-collapse: collapse; font-size: 14.5px; margin: 8px 0 0; }
.specs th, .specs td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.specs th { width: 42%; color: var(--muted); font-weight: 500; background: var(--bg-soft); }
.specs tr:last-child th, .specs tr:last-child td { border-bottom: 0; }

/* faq */
.faq details { border-bottom: 1px solid var(--line); padding: 4px 0; }
.faq details:first-of-type { border-top: 1px solid var(--line); }
.faq summary {
  cursor: pointer; padding: 16px 34px 16px 0; font-weight: 600; font-size: 15.5px;
  color: var(--navy); position: relative; list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  font-size: 20px; color: var(--red); font-weight: 400;
}
.faq details[open] summary::after { content: "\2013"; }
.faq details p { padding: 0 34px 18px 0; color: #4a5568; margin: 0; font-size: 14.8px; }

/* cta band */
.cta { background: var(--navy); color: #fff; padding: 56px 0; }
.cta h2 { color: #fff; }
.cta p { color: #b9cbec; margin: 12px 0 0; }
.cta .row { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }

/* forms */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 6px; color: #33415a; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 8px;
  font-family: var(--font); font-size: 14.5px; color: var(--text); background: #fff;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--navy); box-shadow: 0 0 0 3px rgba(12,52,128,.1);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* footer */
.footer { background: #101a2b; color: #93a3bd; padding: 56px 0 0; font-size: 14px; }
.footer h4 { color: #fff; font-size: 14px; margin-bottom: 16px; letter-spacing: .03em; }
.footer a { color: #93a3bd; }
.footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 36px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 9px; }
.footer .brand { color: #fff; margin-bottom: 14px; }
.footer .brand img { background: transparent; padding: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); margin-top: 40px; padding: 20px 0 26px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px;
}

/* float */
.fab { position: fixed; right: 20px; bottom: 20px; z-index: 55; display: flex; flex-direction: column; gap: 10px; }
.fab a {
  width: 54px; height: 54px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 18px rgba(0,0,0,.22); transition: transform .16s ease;
}
.fab a:hover { transform: scale(1.07); }
.fab .wa { background: #25d366; }
.fab .mail { background: var(--red); }

/* misc */
.note {
  background: #fff8e6; border: 1px solid #f4dfa8; border-radius: 10px; padding: 16px 18px;
  font-size: 14px; color: #6b4f19;
}
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 28px; } }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 720px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }
.stat b { display: block; font-size: 26px; color: var(--navy); }
.stat span { font-size: 13.5px; color: var(--muted); }
.link-arrow { font-weight: 600; font-size: 14.5px; }
.link-arrow::after { content: " \2192"; }