:root {
  --bg: #050816;
  --bg-soft: #090d22;
  --panel: rgba(14, 22, 51, 0.78);
  --panel-strong: rgba(20, 31, 72, 0.92);
  --line: rgba(114, 203, 255, 0.22);
  --text: #eef7ff;
  --muted: #a9b9d7;
  --blue: #32d7ff;
  --purple: #9d6bff;
  --cyan: #6fffea;
  --pink: #ff6bd6;
  --warning: #ffd166;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
  --radius: 26px;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 10%, rgba(50, 215, 255, .16), transparent 32%),
    radial-gradient(circle at 82% 8%, rgba(157, 107, 255, .18), transparent 30%),
    radial-gradient(circle at 50% 90%, rgba(255, 107, 214, .10), transparent 36%),
    var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px);
  background: rgba(5, 8, 22, 0.76);
  border-bottom: 1px solid var(--line);
}
.nav-wrap {
  max-width: var(--max);
  margin: 0 auto;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 22px;
}
.brand, .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: .02em;
}
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 15px;
  display: inline-grid;
  place-items: center;
  color: #06101d;
  background: linear-gradient(135deg, var(--blue), var(--cyan) 48%, var(--purple));
  box-shadow: 0 0 32px rgba(50, 215, 255, .34);
  font-weight: 900;
}
.brand-text { font-size: 22px; }
.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a {
  padding: 10px 13px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 15px;
  transition: .25s ease;
}
.site-nav a:hover, .site-nav a.active {
  color: var(--text);
  background: rgba(50, 215, 255, .12);
  box-shadow: inset 0 0 0 1px rgba(111, 255, 234, .18);
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.04);
  color: var(--text);
}
.nav-toggle span { display: block; width: 19px; height: 2px; background: var(--text); margin: 5px auto; border-radius: 5px; }
main { min-height: 70vh; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 22px; }
.hero {
  position: relative;
  padding: 94px 0 76px;
  overflow: hidden;
}
.hero:before {
  content: "";
  position: absolute;
  inset: 18px auto auto 50%;
  width: 920px;
  height: 420px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, rgba(50,215,255,.12), rgba(157,107,255,.16), transparent);
  filter: blur(25px);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
  gap: 52px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(111, 255, 234, .25);
  color: var(--cyan);
  background: rgba(111, 255, 234, .06);
  font-size: 14px;
}
.eyebrow:before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 18px var(--cyan);
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin: 22px 0 18px;
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.05;
  letter-spacing: -0.05em;
}
.gradient-text {
  background: linear-gradient(90deg, #fff, var(--cyan), var(--purple), var(--pink));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  color: var(--muted);
  font-size: 18px;
  max-width: 720px;
}
.hero-actions, .section-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255,255,255,.05);
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.btn.primary {
  color: #05111d;
  background: linear-gradient(135deg, var(--cyan), var(--blue) 50%, var(--purple));
  box-shadow: 0 18px 45px rgba(50,215,255,.22);
  border-color: transparent;
  font-weight: 700;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 18px 38px rgba(0,0,0,.22); }
.visual-card {
  border: 1px solid rgba(111, 255, 234, .2);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  box-shadow: var(--shadow);
  padding: 14px;
  position: relative;
}
.visual-card:after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(50,215,255,.45), transparent 32%, rgba(157,107,255,.38));
  opacity: .45;
  z-index: -1;
}
.visual-card img { border-radius: 20px; }
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}
.stat {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,.04);
  padding: 18px;
}
.stat strong { display: block; color: var(--cyan); font-size: 28px; line-height: 1; }
.stat span { color: var(--muted); font-size: 13px; }
.section { padding: 76px 0; position: relative; }
.section.alt { background: linear-gradient(180deg, transparent, rgba(9, 13, 34, .78), transparent); }
.section-head { max-width: 780px; margin-bottom: 34px; }
.section-kicker { color: var(--cyan); font-weight: 700; letter-spacing: .08em; font-size: 13px; }
h2 { font-size: clamp(30px, 4vw, 48px); line-height: 1.18; margin: 10px 0 14px; letter-spacing: -0.03em; }
.section-head p { color: var(--muted); font-size: 17px; }
.grid-2, .grid-3, .grid-4 { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.info-card, .feature-card, .case-card, .video-card, .faq-item, .panel {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 18px 60px rgba(0,0,0,.18);
}
.info-card h3, .feature-card h3, .case-card h3, .faq-item h3 { margin-bottom: 10px; font-size: 21px; }
.info-card p, .feature-card p, .case-card p, .faq-item p { color: var(--muted); margin-bottom: 0; }
.info-card:hover, .feature-card:hover, .case-card:hover, .video-card:hover {
  border-color: rgba(111,255,234,.42);
  transform: translateY(-3px);
  transition: .25s ease;
}
.icon-dot {
  width: 42px;
  height: 42px;
  border-radius: 15px;
  background: radial-gradient(circle at 35% 25%, #fff, var(--cyan) 18%, var(--blue) 48%, var(--purple));
  box-shadow: 0 0 28px rgba(111,255,234,.2);
  margin-bottom: 18px;
}
.media-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 32px; align-items: center; }
.media-grid.reverse { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); }
.media-copy p { color: var(--muted); }
.check-list { padding: 0; margin: 20px 0 0; list-style: none; display: grid; gap: 12px; }
.check-list li {
  position: relative;
  padding-left: 28px;
  color: var(--muted);
}
.check-list li:before {
  content: "";
  position: absolute;
  left: 0;
  top: .64em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(111,255,234,.75);
}
.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}
.metric {
  border: 1px solid rgba(157,107,255,.28);
  border-radius: 18px;
  padding: 18px;
  background: rgba(157,107,255,.07);
}
.metric b { color: var(--cyan); font-size: 24px; display: block; }
.metric span { color: var(--muted); font-size: 13px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 12px; }
.tag-cloud span {
  padding: 9px 13px;
  border: 1px solid rgba(111,255,234,.2);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,.04);
}
.timeline { display: grid; gap: 18px; }
.timeline-item {
  display: grid;
  grid-template-columns: 84px minmax(0,1fr);
  gap: 18px;
  padding: 20px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
}
.timeline-item time { color: var(--cyan); font-weight: 800; }
.video-card { padding: 0; overflow: hidden; }
.video-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.video-body { padding: 20px; }
.video-body p { color: var(--muted); margin-bottom: 0; }
.play-badge { display: inline-flex; align-items: center; gap: 8px; color: var(--cyan); font-weight: 700; margin-bottom: 8px; }
.play-badge:before { content: "▶"; font-size: 12px; }
.form-panel label { display: grid; gap: 8px; color: var(--muted); margin-bottom: 14px; }
.form-panel input, .form-panel textarea, .form-panel select {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(3,8,25,.65);
  color: var(--text);
  border-radius: 14px;
  padding: 13px 14px;
  outline: none;
  font: inherit;
}
.form-panel textarea { min-height: 130px; resize: vertical; }
.notice {
  color: var(--muted);
  font-size: 14px;
  margin-top: 14px;
}
.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(3, 7, 20, .9);
  padding: 54px 0 26px;
}
.footer-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 22px;
  display: grid;
  grid-template-columns: 1.4fr repeat(3, minmax(0, .8fr));
  gap: 28px;
}
.footer-grid p, .footer-bottom { color: var(--muted); }
.footer-grid h3 { font-size: 16px; margin-bottom: 12px; }
.footer-grid a { display: block; color: var(--muted); margin: 8px 0; }
.footer-grid a:hover { color: var(--cyan); }
.footer-bottom {
  max-width: var(--max);
  margin: 28px auto 0;
  padding: 18px 22px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  font-size: 13px;
}
.page-hero { padding: 78px 0 44px; }
.page-hero .lead { max-width: 860px; }
.table-like { display: grid; gap: 12px; }
.row-card {
  display: grid;
  grid-template-columns: 1fr 1.4fr 1.1fr;
  gap: 16px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,.035);
}
.row-card strong { color: var(--cyan); }
.row-card span { color: var(--muted); }
@media (max-width: 980px) {
  .hero-grid, .media-grid, .media-grid.reverse { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric-strip, .stats-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 78px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border-radius: 22px;
    background: rgba(5,8,22,.96);
    border: 1px solid var(--line);
  }
  .site-nav.open { display: flex; }
  .site-nav a { border-radius: 14px; }
  .hero { padding: 58px 0 48px; }
  .section { padding: 54px 0; }
  .grid-2, .grid-3, .grid-4, .footer-grid, .metric-strip, .stats-row { grid-template-columns: 1fr; }
  .timeline-item, .row-card { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  h1 { font-size: 42px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *:before, *:after { transition: none !important; scroll-behavior: auto !important; }
}