:root {
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --bg-deep: #09111f;
  --panel: #ffffff;
  --text: #0e1525;
  --muted: #607087;
  --line: rgba(14, 21, 37, 0.08);
  --line-strong: rgba(255,255,255,0.12);
  --primary: #dce8ff;
  --shadow: 0 24px 60px rgba(9, 17, 31, 0.08);
  --radius: 26px;
  --container: min(1180px, calc(100% - 40px));
}
* { 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;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 16px; color: var(--muted); }
h1, h2, h3, h4 { margin: 0 0 16px; line-height: 1.12; }
h1 { font-size: clamp(2.75rem, 4.6vw, 5rem); letter-spacing: -0.045em; }
h2 { font-size: clamp(2rem, 3vw, 3.15rem); letter-spacing: -0.035em; }
h3 { font-size: 1.15rem; }
.container { width: var(--container); margin: 0 auto; }
.section { padding: 92px 0; }
.soft-bg { background: var(--bg-soft); }
.section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px;
  background: rgba(23, 109, 255, 0.08); color: #0f4fb4;
  font-weight: 700; font-size: 12px; letter-spacing: .08em; text-transform: uppercase;
}
.section-tag.light { background: rgba(255,255,255,.08); color: #dce9ff; }
.section-head { max-width: 760px; margin-bottom: 34px; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.86); backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 74px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 1.48rem; font-weight: 800; letter-spacing: -0.03em; }
.brand-icon { width: 36px; height: 36px; object-fit: contain; }
.site-nav { display: flex; gap: 26px; align-items: center; }
.site-nav a { font-size: .96rem; font-weight: 600; color: #334157; }
.site-nav a:hover { color: #0f4fb4; }
.menu-toggle { display:none; border:0; background:transparent; font-size:1.6rem; }

.hero { position: relative; min-height: calc(100vh - 74px); overflow: hidden; background: #08111f; }
.hero picture, .hero-bg, .hero-overlay { position:absolute; inset:0; width:100%; height:100%; }
.hero-bg { object-fit: cover; }
.hero-overlay {
  background:
    linear-gradient(90deg, rgba(5,10,20,.70) 0%, rgba(5,10,20,.46) 20%, rgba(5,10,20,.15) 42%, rgba(5,10,20,.06) 100%),
    linear-gradient(180deg, rgba(6,12,20,.08) 0%, rgba(6,12,20,.24) 100%);
}
.hero-shell {
  position: relative; z-index: 2; min-height: calc(100vh - 74px);
  display: flex; align-items: flex-start; padding-top: 8rem; padding-bottom: 4.5rem;
}
.hero-content { width: min(560px, 100%); color: #fff; }
.hero-content .eyebrow {
  display: inline-flex; margin-bottom: 18px; padding: 8px 14px; border-radius: 999px;
  background: rgba(8,17,32,.36); border: 1px solid rgba(255,255,255,.12); backdrop-filter: blur(8px);
  font-weight: 700; font-size: 12px; letter-spacing: .08em; text-transform: uppercase;
}
.hero-content h1 { max-width: 10ch; margin-bottom: 16px; text-shadow: 0 10px 30px rgba(0,0,0,.25); }
.hero-content p { max-width: 32ch; font-size: 1.08rem; color: rgba(255,255,255,.88); }
.hero-actions { display:flex; gap:14px; flex-wrap:wrap; margin: 28px 0 18px; }
.btn {
  display:inline-flex; align-items:center; justify-content:center; min-height: 52px; padding: 0 22px;
  border-radius: 999px; font-weight: 700; border: 1px solid rgba(255,255,255,.18); transition: .22s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: rgba(8,17,32,.30); color:#fff; backdrop-filter: blur(8px); }
.btn-secondary { background: rgba(255,255,255,.08); color:#fff; backdrop-filter: blur(8px); }
.hero-trust {
  list-style:none; padding:0; margin: 10px 0 0; display:flex; flex-wrap:wrap; gap:12px;
}
.hero-trust li {
  padding: 10px 14px; border-radius: 999px; background: rgba(8,17,32,.38);
  border: 1px solid rgba(255,255,255,.10); color: #e8f3ff; font-size: .92rem;
}

.intro-grid { display:grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: stretch; }
.stats-card {
  display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; padding: 28px;
  border-radius: var(--radius); background: linear-gradient(180deg, #fff 0%, #f3f8ff 100%);
  box-shadow: var(--shadow); border: 1px solid rgba(23,109,255,.08);
}
.stats-card article { padding: 20px; border-radius: 20px; background: #fff; border:1px solid var(--line); }
.stats-card strong { display:block; font-size:1.35rem; margin-bottom: 6px; }
.stats-card span { color: var(--muted); }

.fit-strip { padding-top: 0; }
.fit-box {
  display:grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: start;
  padding: 34px; border-radius: 28px; background: #0a1425; color: #fff;
}
.fit-box h2 { color: #fff; }
.fit-box ul { margin: 0; padding-left: 20px; }
.fit-box li { margin-bottom: 10px; color: rgba(255,255,255,.84); }

.quick-spec-grid {
  display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; margin-bottom: 24px;
}
.quick-spec-grid article {
  padding: 18px 20px; border-radius: 20px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow);
}
.quick-spec-grid span { display:block; font-size: .86rem; color: var(--muted); margin-bottom: 6px; }
.quick-spec-grid strong { font-size: 1.06rem; }

.series-grid { display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 24px; }
.series-card, .app-card {
  background: var(--panel); border-radius: var(--radius); overflow:hidden; border:1px solid var(--line); box-shadow: var(--shadow);
}
.series-card { transition: transform .25s ease, box-shadow .25s ease; }
.series-card:hover { transform: translateY(-6px); box-shadow: 0 28px 70px rgba(12,21,41,.12); }
.series-image { min-height: 260px; display:grid; place-items:center; padding: 24px; background: #f8fafc; }
.series-image.red { background: radial-gradient(circle at 20% 74%, rgba(255,84,84,.18), transparent 44%), #f8fafc; }
.series-image.green { background: radial-gradient(circle at 20% 74%, rgba(43,224,96,.16), transparent 44%), #f8fafc; }
.series-image.blue { background: radial-gradient(circle at 20% 74%, rgba(40,147,255,.16), transparent 44%), #f8fafc; }
.series-image img { max-height: 220px; object-fit: contain; }
.series-body { padding: 26px; }
.series-body h3 { display:flex; justify-content:space-between; gap: 10px; align-items:baseline; }
.series-body h3 span { font-size: 1rem; color: #0f4fb4; }
.series-body ul { margin:0; padding-left:18px; color: var(--muted); }
.series-body li { margin-bottom: 10px; }

.app-grid { display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 24px; }
.app-card img { width: 100%; aspect-ratio: 1.25 / 1; object-fit: cover; }
.app-body { padding: 22px; }
.app-body p { margin-bottom: 0; }

.advantage-band { background: linear-gradient(180deg, #071120 0%, #0d1930 100%); }
.advantage-grid { display:grid; grid-template-columns: .95fr 1.05fr; gap: 40px; align-items: center; }
.advantage-band h2 { color:#fff; }
.visual-panel { overflow:hidden; border-radius: 28px; box-shadow: var(--shadow); }
.visual-panel img { width:100%; height:100%; object-fit: cover; }
.advantage-list { display:grid; gap: 14px; }
.advantage-list article { padding: 20px 22px; border-radius: 20px; }
.dark-cards article { border: 1px solid var(--line-strong); background: rgba(255,255,255,.03); }
.dark-cards h3 { color: #fff; }
.dark-cards p { color: rgba(255,255,255,.76); margin-bottom:0; }

.trust-strip { padding-top: 0; }
.trust-grid {
  display:grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: start;
  padding: 36px; border-radius: 30px; background: #f4f8ff; border: 1px solid rgba(23,109,255,.08);
}
.trust-points { display:grid; gap: 16px; }
.trust-points article { padding: 18px 20px; border-radius: 20px; background:#fff; border:1px solid var(--line); }
.trust-points strong { display:block; margin-bottom: 6px; }
.trust-points span { color: var(--muted); }

.oem-grid { display:grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.light-frame { background: #fff; border:1px solid var(--line); }
.bullet-cards { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; margin-top: 22px; }
.bullet-cards div { padding: 20px; border-radius: 20px; background: var(--bg-soft); border: 1px solid var(--line); }
.bullet-cards strong { display:block; margin-bottom: 8px; }
.bullet-cards span { color: var(--muted); }

.cta { padding-top: 36px; }
.cta-box {
  display:grid; grid-template-columns: 1fr .9fr; gap: 28px; align-items:center;
  padding: 34px; border-radius: 30px; background: linear-gradient(135deg, #eef5ff 0%, #f9fbff 100%); border:1px solid rgba(23,109,255,.08); box-shadow: var(--shadow);
}
.cta-panel { display:grid; gap: 14px; }
.cta-mail {
  display:block; padding: 18px 20px; border-radius: 20px; background:#fff; border:1px solid var(--line);
  font-size: clamp(1.02rem, 2vw, 1.24rem); font-weight: 600; letter-spacing:-0.01em;
}
.cta-mail:hover { color: #0f4fb4; }
.cta-note { margin: 2px 2px 0; font-size: .95rem; }

.site-footer { padding: 40px 0 26px; border-top: 1px solid var(--line); background:#fff; }
.footer-grid { display:grid; grid-template-columns: 1fr 1.1fr 1fr; gap: 30px; }
.site-footer h3, .site-footer h4 { margin-bottom: 10px; }
.site-footer p { margin: 0 0 8px; }
.site-footer a { color:#0f4fb4; }
.footer-bottom { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); text-align: right; }
.footer-bottom p { margin:0; font-size: .92rem; }

@media (max-width: 1080px) {
  .intro-grid, .fit-box, .advantage-grid, .trust-grid, .oem-grid, .cta-box, .footer-grid, .series-grid, .app-grid, .quick-spec-grid {
    grid-template-columns: 1fr 1fr;
  }
  .series-grid .series-card:last-child,
  .app-grid .app-card:last-child,
  .quick-spec-grid article:last-child { grid-column: 1 / -1; }
  .cta-box, .footer-grid, .oem-grid, .advantage-grid, .trust-grid, .fit-box { grid-template-columns: 1fr; }
}
@media (max-width: 840px) {
  .site-nav {
    position:absolute; top:74px; left:20px; right:20px; display:none; flex-direction:column; align-items:flex-start;
    padding: 18px; background: rgba(255,255,255,.97); border:1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow);
  }
  .site-nav.open { display:flex; }
  .menu-toggle { display:inline-block; }
  .section { padding: 76px 0; }
  .series-grid, .app-grid, .bullet-cards, .quick-spec-grid, .intro-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .hero-shell { min-height: auto; padding-top: 6rem; padding-bottom: 3rem; }
  .hero-content { width: 100%; max-width: 100%; }
  .hero-content h1 { max-width: 10.5ch; }
  .hero-content p { max-width: 100%; }
  .hero-overlay { background: linear-gradient(180deg, rgba(5,10,20,.45) 0%, rgba(5,10,20,.55) 100%); }
  .footer-bottom { text-align: left; }
}
@media (max-width: 560px) {
  .container { width: min(100% - 24px, 1180px); }
  .brand span { font-size: 1.3rem; }
  .brand-icon { width: 30px; height: 30px; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .hero-trust { display:grid; grid-template-columns: 1fr; }
  .fit-box, .trust-grid, .cta-box, .stats-card { padding: 24px; }
}

.hero-note{margin:1rem 0 1.5rem;color:rgba(255,255,255,.86);font-size:.98rem}
.hero-note a{color:#fff;text-decoration:underline;text-underline-offset:3px}