:root {
  --bg: #07111f;
  --bg-soft: #0c1729;
  --panel: rgba(15, 24, 42, 0.82);
  --panel-strong: #0d1829;
  --line: rgba(255, 255, 255, 0.08);
  --text: #eaf3ff;
  --muted: #8da4c0;
  --primary: #1da1ff;
  --primary-strong: #0077ff;
  --accent: #7cf0ff;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --radius-sm: 16px;
  --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(29, 161, 255, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(124, 240, 255, 0.12), transparent 22%),
    linear-gradient(180deg, #06101d 0%, #091422 35%, #050b15 100%);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }
.narrow { max-width: 820px; }
.site-header {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(5, 12, 22, 0.75);
  border-bottom: 1px solid var(--line);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 84px;
}
.brand { display: inline-flex; align-items: center; gap: 14px; }
.brand strong, .brand small { display: block; }
.brand small { color: var(--muted); margin-top: 4px; font-size: 12px; }
.brand-mark {
  width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary), #63c5ff);
  color: white; font-weight: 800; box-shadow: 0 12px 24px rgba(29, 161, 255, 0.35);
}
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav a { color: var(--muted); font-weight: 600; }
.site-nav a.active, .site-nav a:hover { color: var(--text); }
.nav-toggle { display: none; background: transparent; border: 0; color: white; font-size: 28px; }
.hero-section, .page-hero { padding: 92px 0 56px; }
.hero-grid, .product-detail-grid, .contact-grid, .two-col-layout {
  display: grid; gap: 32px; align-items: center;
}
.hero-grid { grid-template-columns: 1.1fr 0.9fr; min-height: 70vh; }
.eyebrow {
  display: inline-block; margin-bottom: 16px; padding: 8px 12px; border-radius: 999px;
  background: rgba(29, 161, 255, 0.12); color: var(--accent); font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .12em;
}
h1, h2, h3 { margin: 0 0 14px; line-height: 1.05; }
h1 { font-size: clamp(42px, 6vw, 74px); }
h1 span { color: #7dd8ff; }
h2 { font-size: clamp(30px, 4vw, 46px); }
h3 { font-size: 24px; }
p { margin: 0 0 16px; color: #c8d6e7; line-height: 1.7; }
.lead { font-size: 18px; }
.muted { color: var(--muted); }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 22px; border-radius: 999px; font-weight: 700; transition: .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-strong)); color: white; box-shadow: 0 20px 36px rgba(0,119,255,.25); }
.btn-secondary { border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.02); }
.hero-badges, .check-list, .mini-specs { list-style: none; padding: 0; margin: 26px 0 0; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-badges li, .mini-specs li, .check-list li {
  border: 1px solid rgba(255,255,255,0.08); background: rgba(255,255,255,0.03);
  border-radius: 999px; padding: 10px 14px; color: #d8e8ff;
}
.check-list li, .mini-specs li { border-radius: 14px; margin-bottom: 10px; }
.card-glow, .info-card, .product-card, .scene-card, .cta-box, .info-panel, .contact-form {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}
.hero-visual { padding: 24px; }
.device-card {
  padding: 30px; min-height: 520px; border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(16,28,46,.95), rgba(8,16,29,.95));
  border: 1px solid rgba(255,255,255,.08);
}
.floating-card { position: relative; overflow: hidden; }
.floating-card::before {
  content: ""; position: absolute; inset: -20% auto auto -10%; width: 240px; height: 240px;
  background: radial-gradient(circle, rgba(29,161,255,.45), transparent 65%);
}
.device-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; color: var(--muted); }
.power-ring {
  width: 250px; height: 250px; margin: 54px auto 36px; border-radius: 50%; display: grid; place-items: center;
  background: radial-gradient(circle at center, rgba(7,17,31,0.2) 35%, rgba(29,161,255,.18) 36%, rgba(29,161,255,.06) 55%, transparent 56%),
              linear-gradient(145deg, rgba(20,30,48,.9), rgba(4,8,15,.95));
  border: 1px solid rgba(125,216,255,.25);
  box-shadow: inset 0 0 40px rgba(29,161,255,.16), 0 0 40px rgba(29,161,255,.12);
  text-align: center;
}
.power-ring strong { display: block; font-size: 42px; margin-bottom: 8px; }
.power-ring span { color: var(--muted); font-size: 13px; }
.device-specs, .metrics-grid, .feature-grid, .scene-grid, .product-grid, .footer-grid, .field-grid {
  display: grid; gap: 18px;
}
.device-specs { grid-template-columns: repeat(3, 1fr); }
.device-specs div, .metrics-grid article { padding: 18px; border-radius: 18px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.07); }
.device-specs strong, .metrics-grid strong { display: block; margin-bottom: 8px; }
.metrics-section { padding-bottom: 24px; }
.metrics-grid { grid-template-columns: repeat(4, 1fr); }
.section { padding: 64px 0; }
.section-darkband { background: linear-gradient(180deg, rgba(9, 19, 34, 0.92), rgba(6, 12, 21, 0.92)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { margin-bottom: 28px; }
.split-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; }
.feature-grid { grid-template-columns: repeat(3, 1fr); }
.info-card, .scene-card, .product-card, .info-panel, .contact-form { padding: 28px; }
.text-link { color: var(--accent); font-weight: 700; }
.product-grid { grid-template-columns: repeat(3, 1fr); }
.product-grid.two-rows { grid-template-columns: repeat(2, 1fr); }
.product-visual, .product-mockup {
  min-height: 220px; border-radius: 20px; margin-bottom: 18px;
  border: 1px solid rgba(255,255,255,.1);
}
.product-tag {
  display: inline-block; margin-bottom: 12px; padding: 6px 10px; border-radius: 999px;
  background: rgba(124, 240, 255, 0.1); color: var(--accent); font-size: 12px; font-weight: 700;
}
.gradient-1 { background: linear-gradient(135deg, #0d3d80, #1da1ff 55%, #7cf0ff); }
.gradient-2 { background: linear-gradient(135deg, #0d243f, #176db2 52%, #88d0ff); }
.gradient-3 { background: linear-gradient(135deg, #1f2452, #0077ff 58%, #64d7ff); }
.gradient-4 { background: linear-gradient(135deg, #2d1f4d, #0e80ff 58%, #7cf0ff); }
.scene-grid { grid-template-columns: repeat(4, 1fr); }
.faq-grid, .contact-grid, .two-col-layout { grid-template-columns: 0.8fr 1.2fr; }
.accordion details {
  padding: 20px 22px; margin-bottom: 14px; border-radius: 18px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.07);
}
.accordion summary { cursor: pointer; font-weight: 700; }
.cta-box { padding: 36px; display: flex; justify-content: space-between; gap: 24px; align-items: center; }
.small-hero { padding-top: 72px; padding-bottom: 24px; }
.product-detail-grid { grid-template-columns: 1fr 1fr; }
.detail-visual { padding: 24px; }
.product-mockup { min-height: 460px; }
.detail-points { display: grid; gap: 12px; margin: 24px 0; }
.detail-points div { padding: 16px 18px; border-radius: 16px; background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.06); }
.detail-points strong, .detail-points span { display: block; }
.detail-points span { color: var(--muted); margin-top: 6px; }
.spec-table {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 16px;
}
.spec-table div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.06);
}
.spec-table strong { color: var(--text); }
.spec-table span { color: #d6e5f7; }
.contact-form label { display: block; margin-bottom: 16px; }
.contact-form span { display: inline-block; margin-bottom: 8px; font-weight: 600; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; padding: 14px 16px; border-radius: 14px; border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.04); color: white; font: inherit;
}
.field-grid { grid-template-columns: 1fr 1fr; }
.site-footer { padding: 28px 0 48px; border-top: 1px solid var(--line); }
.footer-grid { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 980px) {
  .hero-grid, .product-detail-grid, .faq-grid, .contact-grid, .two-col-layout,
  .feature-grid, .scene-grid, .product-grid, .product-grid.two-rows,
  .metrics-grid, .footer-grid, .field-grid { grid-template-columns: 1fr; }
  .site-nav {
    display: none; position: absolute; top: 84px; left: 16px; right: 16px; flex-direction: column;
    padding: 20px; border-radius: 20px; background: rgba(7, 17, 31, 0.96); border: 1px solid var(--line);
  }
  .site-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .split-head, .cta-box { flex-direction: column; align-items: flex-start; }
  .device-specs { grid-template-columns: 1fr; }
  .spec-table div { grid-template-columns: 1fr; }
}