:root {
  color-scheme: dark;
  --bg: #080b12;
  --panel: rgba(18, 25, 38, 0.78);
  --text: #eef4ff;
  --muted: #9aa8bd;
  --line: rgba(255, 255, 255, 0.12);
  --blue: #62a8ff;
  --cyan: #53e0d4;
  --lime: #b8f36d;
  --amber: #ffd166;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
  --radius: 8px;
  --max: 1180px;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: radial-gradient(circle at 20% 10%, rgba(83, 224, 212, 0.16), transparent 26rem), radial-gradient(circle at 78% 8%, rgba(98, 168, 255, 0.16), transparent 30rem), linear-gradient(180deg, #080b12 0%, #0b111d 46%, #070a10 100%);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(8, 11, 18, 0.78);
  backdrop-filter: blur(18px);
}
.nav {
  width: min(var(--max), calc(100% - 40px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; }
.brand-logo {
  width: 38px;
  height: 38px;
  object-fit: contain;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  padding: 3px;
  box-shadow: 0 12px 34px rgba(83, 224, 212, 0.18);
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { padding: 9px 12px; border-radius: 8px; color: var(--muted); font-size: 14px; }
.nav-links a:hover, .nav-links a.active { color: var(--text); background: rgba(255, 255, 255, 0.08); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  border: 1px solid rgba(83, 224, 212, 0.36);
  border-radius: 8px;
  color: #071118;
  background: linear-gradient(135deg, var(--cyan), var(--lime));
  font-size: 14px;
  font-weight: 800;
}
.mobile-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 8px; background: transparent; color: var(--text); }
.mobile-toggle span { display: block; width: 18px; height: 2px; margin: 4px auto; background: currentColor; }

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  padding: 72px 0 54px;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 11, 18, 0.94), rgba(8, 11, 18, 0.62), rgba(8, 11, 18, 0.92)), url("https://images.unsplash.com/photo-1551434678-e076c223a692?auto=format&fit=crop&w=2200&q=80") center/cover;
  opacity: 0.9;
}
.hero-inner, .section-inner { position: relative; width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.8fr); gap: 44px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 18px; color: var(--cyan); font-size: 13px; font-weight: 800; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 99px; background: var(--cyan); box-shadow: 0 0 18px var(--cyan); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 860px; margin-bottom: 22px; font-size: clamp(42px, 7vw, 86px); line-height: 0.98; letter-spacing: 0; }
.hero-copy { max-width: 700px; margin-bottom: 30px; color: #d6e0ef; font-size: 19px; line-height: 1.78; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn { display: inline-flex; justify-content: center; align-items: center; min-height: 46px; padding: 12px 18px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255, 255, 255, 0.08); color: var(--text); font-weight: 800; }
.btn.primary { border-color: rgba(83, 224, 212, 0.4); background: linear-gradient(135deg, var(--cyan), var(--blue)); color: #041016; }

.hero-card, .panel, .feature-card, .news-card, .timeline-item, .contact-box, .value-card, .metric-mini {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.hero-card { box-shadow: var(--shadow); overflow: hidden; }
.screen-top { display: flex; justify-content: space-between; align-items: center; padding: 14px 16px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.signal { display: flex; gap: 6px; }
.signal i { width: 8px; height: 8px; border-radius: 99px; background: var(--cyan); }
.dashboard-preview { padding: 18px; }
.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 18px; }
.metric-mini { padding: 13px; }
.metric-mini strong { display: block; margin-bottom: 6px; font-size: 24px; }
.metric-mini span { color: var(--muted); font-size: 12px; }
.flow-list { display: grid; gap: 10px; }
.flow-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px; border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 8px; background: rgba(255, 255, 255, 0.05); }
.flow-item span:first-child { color: #d8e6f8; }
.tag { display: inline-flex; align-items: center; min-height: 26px; padding: 5px 9px; border-radius: 999px; background: rgba(83, 224, 212, 0.12); color: var(--cyan); font-size: 12px; font-weight: 800; white-space: nowrap; }

.section { padding: 86px 0; }
.section.alt { background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0)); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 28px; margin-bottom: 34px; }
.section-head h2 { max-width: 720px; margin-bottom: 0; font-size: clamp(30px, 4vw, 52px); line-height: 1.08; letter-spacing: 0; }
.section-head p { max-width: 430px; margin-bottom: 0; color: var(--muted); line-height: 1.75; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--line); }
.stat { padding: 28px; background: rgba(12, 18, 30, 0.88); }
.stat strong { display: block; margin-bottom: 8px; font-size: 40px; line-height: 1; }
.stat span { color: var(--muted); line-height: 1.6; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card, .value-card, .panel, .contact-box { padding: 24px; }
.icon { width: 42px; height: 42px; display: grid; place-items: center; margin-bottom: 20px; border-radius: 8px; background: rgba(98, 168, 255, 0.14); color: var(--cyan); font-weight: 900; }
.feature-card h3, .value-card h3, .news-card h3, .timeline-item h3 { margin-bottom: 10px; font-size: 20px; }
.feature-card p, .value-card p, .news-card p, .timeline-item p, .contact-box p, .module p { margin-bottom: 0; color: var(--muted); line-height: 1.7; }
.media-band, .about-grid { display: grid; grid-template-columns: 1fr 0.86fr; gap: 22px; align-items: stretch; }
.media-photo { min-height: 430px; border-radius: var(--radius); background: url("https://images.unsplash.com/photo-1517245386807-bb43f82c33c4?auto=format&fit=crop&w=1600&q=80") center/cover; border: 1px solid var(--line); }
.check-list { display: grid; gap: 14px; margin: 24px 0 0; padding: 0; list-style: none; }
.check-list li { display: grid; grid-template-columns: 24px 1fr; gap: 10px; color: #d7e4f7; line-height: 1.65; }
.check-list li::before { content: "OK"; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; background: rgba(184, 243, 109, 0.14); color: var(--lime); font-size: 10px; font-weight: 900; }

.page-hero { padding: 92px 0 64px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); background: linear-gradient(90deg, rgba(8, 11, 18, 0.96), rgba(8, 11, 18, 0.7)), var(--hero-image, url("https://images.unsplash.com/photo-1552664730-d307ca884978?auto=format&fit=crop&w=2200&q=80")) center/cover; }
.page-hero h1 { max-width: 920px; margin-bottom: 18px; }
.page-hero p { max-width: 720px; color: #d7e3f2; font-size: 18px; line-height: 1.8; }
.product-layout { display: grid; grid-template-columns: 0.72fr 1fr; gap: 22px; align-items: start; }
.sticky-panel { position: sticky; top: 98px; }
.module-list { display: grid; gap: 14px; }
.module { padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255, 255, 255, 0.045); }
.module h3 { margin-bottom: 8px; }
.steps { counter-reset: step; display: grid; gap: 16px; }
.step { counter-increment: step; position: relative; padding: 22px 22px 22px 72px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.step::before { content: counter(step, decimal-leading-zero); position: absolute; left: 20px; top: 22px; color: var(--cyan); font-weight: 900; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.news-card { overflow: hidden; }
.news-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.news-card-body { padding: 20px; }
.date { display: block; margin-bottom: 12px; color: var(--cyan); font-size: 13px; font-weight: 800; }
.timeline { display: grid; gap: 14px; }
.timeline-item { padding: 22px; display: grid; grid-template-columns: 150px 1fr; gap: 20px; }
.timeline-item time { color: var(--amber); font-weight: 900; }
.about-photo { min-height: 520px; border: 1px solid var(--line); border-radius: var(--radius); background: url("https://images.unsplash.com/photo-1556761175-b413da4baf72?auto=format&fit=crop&w=1600&q=80") center/cover; }
.value-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.contact-qr img {
  width: min(100%, 220px);
  aspect-ratio: 1;
  object-fit: contain;
  margin: 12px 0 16px;
  border-radius: 8px;
  background: #fff;
  padding: 10px;
}
.footer { padding: 36px 0; border-top: 1px solid rgba(255, 255, 255, 0.08); color: var(--muted); }
.footer-inner { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }

@media (max-width: 920px) {
  .mobile-toggle { display: block; }
  .nav-links { position: absolute; left: 20px; right: 20px; top: 72px; display: none; flex-direction: column; align-items: stretch; padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: rgba(8, 11, 18, 0.96); }
  .nav.open .nav-links { display: flex; }
  .nav-cta { display: none; }
  .hero-grid, .media-band, .product-layout, .about-grid { grid-template-columns: 1fr; }
  .sticky-panel { position: static; }
  .stats, .feature-grid, .news-grid, .contact-grid { grid-template-columns: repeat(2, 1fr); }
  .section-head { display: block; }
  .section-head h2 { margin-bottom: 14px; }
}
@media (max-width: 620px) {
  .nav, .hero-inner, .section-inner, .footer-inner { width: min(100% - 28px, var(--max)); }
  .hero { min-height: auto; padding: 56px 0 42px; }
  .hero-grid { gap: 28px; }
  .hero-copy, .page-hero p { font-size: 16px; }
  .section { padding: 60px 0; }
  .stats, .feature-grid, .news-grid, .value-grid, .contact-grid, .metric-row { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; gap: 8px; }
  .media-photo, .about-photo { min-height: 300px; }
}