:root {
  --bg: #f7f9fc;
  --panel: #ffffff;
  --text: #11233f;
  --muted: #62748a;
  --line: #dbe5f0;
  --primary: #1f6fd1;
  --primary-dark: #124f9f;
  --soft: #eef4fb;
  --shadow: 0 18px 48px rgba(17, 35, 63, 0.08);
  --radius: 22px;
  --radius-sm: 16px;
  --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(247,249,252,0.92);
  border-bottom: 1px solid rgba(219,229,240,0.8);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; gap: 18px; }
.brand { display: inline-flex; align-items: center; gap: 14px; }
.brand img { height: 48px; width: auto; }
.brand strong { display: block; font-size: 1.28rem; line-height: 1.1; }
.brand span { display: block; color: var(--muted); font-size: .95rem; }
.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a { color: var(--muted); font-weight: 600; }
.main-nav a.active, .main-nav a:hover { color: var(--text); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; background: var(--primary); color: white; border: 1px solid var(--primary); padding: 14px 22px; border-radius: 999px; font-weight: 700; box-shadow: var(--shadow); }
.btn:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-outline { background: white; color: var(--primary-dark); border-color: var(--line); box-shadow: none; }
.btn-outline:hover { background: var(--soft); border-color: #cdd9e7; }
.btn-sm { padding: 10px 16px; font-size: .94rem; }
.nav-toggle { display: none; background: transparent; border: 0; font-size: 1.6rem; }
.hero { padding: 72px 0 54px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 42px; align-items: center; }
.eyebrow { margin: 0 0 14px; text-transform: uppercase; letter-spacing: .14em; font-weight: 800; color: var(--primary); font-size: .82rem; }
.hero h1 { margin: 0; font-size: clamp(2.6rem, 5vw, 4.7rem); line-height: 1.02; letter-spacing: -0.03em; }
.lead { font-size: 1.18rem; color: #31465f; margin: 20px 0 12px; max-width: 58ch; }
.sublead { color: var(--muted); margin: 0 0 24px; max-width: 60ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0; }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 26px; }
.stat { padding: 18px; background: white; border: 1px solid var(--line); border-radius: var(--radius-sm); box-shadow: var(--shadow); }
.stat strong { display: block; font-size: 1.35rem; }
.stat span { display: block; color: var(--muted); font-size: .94rem; }
.hero-art { background: linear-gradient(180deg, #ffffff, #eef4fb); border-radius: 36px; border: 1px solid var(--line); padding: 16px; box-shadow: var(--shadow); }
.section { padding: 74px 0; }
.section-alt { background: linear-gradient(180deg, rgba(255,255,255,.8), rgba(238,244,251,.75)); border-top: 1px solid rgba(219,229,240,.7); border-bottom: 1px solid rgba(219,229,240,.7); }
.section-head { max-width: 760px; margin-bottom: 28px; }
.section-head.center { text-align: center; margin-inline: auto; }
.section h2 { margin: 0 0 12px; font-size: clamp(2rem, 3.5vw, 3rem); line-height: 1.1; }
.section-head p { color: var(--muted); margin: 0; }
.grid-3, .grid-2 { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.card h3 { margin: 14px 0 8px; font-size: 1.35rem; }
.card p { color: var(--muted); margin: 0 0 18px; }
.card .thumb { aspect-ratio: 4 / 3; background: #f8fbff; border: 1px solid var(--line); border-radius: 18px; padding: 10px; display: grid; place-items: center; }
.kicker { display: inline-flex; padding: 8px 12px; border-radius: 999px; background: var(--soft); color: var(--primary-dark); font-size: .82rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: center; }
.media-stack { display: grid; gap: 18px; }
.media-card { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.media-card img { width: 100%; height: auto; border-radius: 14px; }
.checks, .chips, .spec-list { display: flex; flex-wrap: wrap; gap: 12px; padding: 0; list-style: none; margin: 24px 0 0; }
.checks li, .chips span { background: white; border: 1px solid var(--line); border-radius: 999px; padding: 10px 14px; color: var(--muted); font-weight: 600; }
.spec-list li { background: var(--soft); border-radius: 12px; padding: 12px 14px; color: #365170; font-weight: 600; }
.detail-hero { padding: 58px 0 30px; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.spec-table { display: grid; grid-template-columns: 180px 1fr; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.spec-table div { padding: 12px 16px; border-bottom: 1px solid var(--line); background: white; }
.spec-table div:nth-last-child(-n+2) { border-bottom: none; }
.spec-table div:nth-child(odd) { background: #f9fbff; font-weight: 700; }
.spec-sheet { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.spec-sheet img { width: 100%; border-radius: 14px; }
.cta-box { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 32px; background: linear-gradient(135deg, #0f2a54, #1f6fd1); color: white; border-radius: 30px; box-shadow: var(--shadow); }
.cta-box h2 { margin: 0 0 10px; }
.cta-box p { margin: 0; color: rgba(255,255,255,.85); max-width: 60ch; }
.footer { padding: 30px 0 50px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr .8fr .9fr; gap: 22px; background: white; border: 1px solid var(--line); border-radius: 24px; padding: 28px; box-shadow: var(--shadow); }
.footer a, .footer p, .footer span { color: var(--muted); }
.footer h4 { margin: 0 0 12px; }
.footer-col { display: grid; gap: 10px; }
.banner-note { padding: 14px 18px; border-left: 4px solid var(--primary); background: white; border-radius: 0 16px 16px 0; color: var(--muted); }
@media (max-width: 980px) {
  .main-nav { position: fixed; inset: 74px 20px auto 20px; background: white; border: 1px solid var(--line); border-radius: 18px; padding: 20px; box-shadow: var(--shadow); display: none; flex-direction: column; align-items: flex-start; }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .hero-grid, .split, .detail-grid, .grid-3, .grid-2, .footer-grid, .stat-row { grid-template-columns: 1fr; }
  .cta-box { flex-direction: column; align-items: flex-start; }
}