:root {
  color-scheme: dark;
  --bg: #090914;
  --panel: #111120;
  --text: #f5f4ff;
  --muted: #a5a4bd;
  --purple: #a78bfa;
  --pink: #f0abfc;
  --border: rgba(195, 184, 255, .15);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  line-height: 1.7; -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.site-header {
  min-height: 76px; padding: 0 7%; display: flex; align-items: center;
  justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--border);
  background: rgba(9, 9, 20, .88); position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(16px);
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 20px; font-weight: 750; letter-spacing: -.5px; }
.brand-mark {
  width: 35px; height: 35px; display: grid; place-items: center; border-radius: 11px;
  color: white; font-size: 20px; background: linear-gradient(135deg, #8b5cf6, #d946ef);
  box-shadow: 0 0 24px #8b5cf633;
}
.brand-ai { color: #c4b5fd; }
.main-nav { display: flex; align-items: center; gap: 34px; color: #c1bfd4; font-size: 14px; }
.main-nav a:hover, .site-footer a:hover { color: white; }
.nav-cta { border: 1px solid #8b5cf688; border-radius: 9px; padding: 9px 15px; color: white; }
.menu-toggle { display: none; }
.hero {
  position: relative; overflow: hidden; min-height: 580px; padding: 90px 10% 80px;
  display: flex; align-items: center; justify-content: space-between; gap: 42px;
}
.hero-glow {
  position: absolute; width: 520px; height: 520px; right: 7%; top: 0;
  background: radial-gradient(circle, #7c3aed26 0, #7c3aed09 45%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 590px; }
.eyebrow, .section-kicker {
  color: #c4b5fd; font-size: 11px; font-weight: 750; letter-spacing: 2.5px;
}
.eyebrow { display: flex; align-items: center; gap: 10px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #a78bfa; box-shadow: 0 0 12px #a78bfa; }
h1 { margin: 25px 0 20px; font-size: clamp(44px, 5.5vw, 76px); line-height: 1.2; letter-spacing: -3px; }
.gradient-text { background: linear-gradient(100deg, #c4b5fd 5%, #e9a8f7 55%, #a5b4fc); color: transparent; background-clip: text; -webkit-background-clip: text; }
.hero-description { max-width: 460px; color: var(--muted); font-size: 16px; line-height: 2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 30px; }
.button { min-height: 46px; padding: 11px 19px; display: inline-flex; align-items: center; justify-content: center; gap: 14px; border-radius: 10px; font-size: 14px; font-weight: 650; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: linear-gradient(110deg, #7c3aed, #a855f7); box-shadow: 0 8px 30px #8b5cf62b; }
.button-secondary { border: 1px solid var(--border); background: #ffffff06; }
.hero-note { margin-top: 43px; display: flex; align-items: center; gap: 12px; color: #77758f; font-size: 10px; letter-spacing: 2px; }
.note-line { width: 26px; height: 1px; background: #a78bfa; }
.visual { position: relative; flex: 0 0 340px; width: 340px; height: 340px; display: grid; place-items: center; }
.orbit { position: absolute; border: 1px solid #a78bfa35; border-radius: 50%; transform: rotate(-28deg); }
.orbit-one { width: 300px; height: 145px; }
.orbit-two { width: 270px; height: 240px; transform: rotate(48deg); border-color: #e879f936; }
.core {
  width: 130px; height: 130px; display: grid; place-items: center; border-radius: 38px;
  transform: rotate(-8deg); background: linear-gradient(145deg, #a78bfa35, #e879f915);
  border: 1px solid #c4b5fd77; box-shadow: 0 0 70px #8b5cf630, inset 0 0 35px #a78bfa15;
}
.core span { font-size: 75px; font-weight: 300; color: #e9d5ff; text-shadow: 0 0 32px #c084fc99; }
.visual-label { position: absolute; font-size: 9px; color: #8e89ad; letter-spacing: 2px; }
.label-top { top: 20px; right: 8px; }
.label-bottom { bottom: 24px; left: 2px; }
.spark { position: absolute; width: 6px; height: 6px; border-radius: 50%; background: #e9d5ff; box-shadow: 0 0 16px #c084fc; }
.spark-one { top: 55px; left: 65px; }.spark-two { bottom: 70px; right: 37px; }.spark-three { top: 105px; right: 25px; width: 4px; height: 4px; }
.section-wrap { padding: 65px 10% 100px; }
.section-heading { text-align: center; margin: 0 auto 42px; }
.section-heading h2, .about-inner h2 { margin: 12px 0; font-size: clamp(27px, 3vw, 38px); letter-spacing: -1px; }
.section-heading p, .about-inner p { color: var(--muted); font-size: 14px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.feature-card { min-width: 0; padding: 27px 25px 23px; border: 1px solid var(--border); border-radius: 16px; background: linear-gradient(145deg, #ffffff08, #ffffff02); }
.feature-icon { width: 43px; height: 43px; display: grid; place-items: center; border-radius: 12px; color: #d8b4fe; background: #a78bfa18; font-size: 22px; }
.feature-card h3 { margin: 20px 0 8px; font-size: 17px; }
.feature-card p { min-height: 52px; margin: 0 0 24px; color: var(--muted); font-size: 13px; line-height: 1.9; }
.card-index { color: #8e89ad; font-size: 9px; letter-spacing: 1.5px; }
.about-section { padding: 75px 10%; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: radial-gradient(ellipse at 50% 100%, #7c3aed12, transparent 60%); text-align: center; }
.about-inner { max-width: 650px; margin: auto; }
.about-inner p { line-height: 2; }
.text-link { display: inline-flex; gap: 12px; margin-top: 15px; color: #d8b4fe; font-size: 13px; }
.site-footer { min-height: 90px; padding: 22px 7%; display: flex; justify-content: space-between; align-items: center; gap: 20px; color: #89869f; font-size: 11px; }
.footer-brand { color: var(--text); font-size: 16px; }
.footer-brand .brand-mark { width: 29px; height: 29px; font-size: 16px; border-radius: 9px; }
@media (max-width: 900px) {
  .site-header { padding: 0 5%; }
  .hero { padding: 75px 7%; gap: 10px; }
  .visual { flex-basis: 280px; width: 280px; height: 300px; transform: scale(.9); }
  .orbit-one { width: 260px; }.orbit-two { width: 240px; }
  .section-wrap { padding-left: 7%; padding-right: 7%; }
  .feature-grid { gap: 12px; }
  .feature-card { padding: 22px 18px; }
}
@media (max-width: 650px) {
  html { scroll-padding-top: 72px; }
  .site-header { min-height: 66px; padding: 0 20px; }
  .brand { font-size: 19px; }
  .menu-toggle { display: flex; width: 42px; height: 42px; padding: 11px; flex-direction: column; justify-content: center; gap: 5px; border: 1px solid var(--border); border-radius: 10px; background: #ffffff08; cursor: pointer; }
  .menu-toggle span { width: 18px; height: 2px; background: #eee9ff; border-radius: 2px; }
  .main-nav { display: none; position: absolute; top: 65px; left: 0; right: 0; padding: 15px 20px 22px; flex-direction: column; align-items: stretch; gap: 5px; background: #0d0c1a; border-bottom: 1px solid var(--border); box-shadow: 0 18px 30px #0005; }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 12px 10px; }
  .nav-cta { text-align: center; margin-top: 6px; }
  .hero { min-height: 0; padding: 63px 24px 46px; display: flex; flex-direction: column; align-items: stretch; gap: 14px; }
  .hero-content { max-width: none; }
  h1 { margin: 20px 0 17px; font-size: clamp(43px, 12vw, 61px); line-height: 1.23; letter-spacing: -2px; }
  .hero-description { font-size: 14px; line-height: 1.9; }
  .hero-actions { gap: 10px; margin-top: 24px; }
  .button { min-height: 44px; padding: 10px 14px; font-size: 13px; }
  .hero-note { margin-top: 29px; font-size: 9px; }
  .visual { align-self: center; flex: none; width: min(280px, 85vw); height: 250px; margin: 0 auto; transform: scale(.83); transform-origin: center; }
  .section-wrap { padding: 45px 20px 60px; }
  .section-heading { margin-bottom: 25px; }
  .section-heading h2, .about-inner h2 { font-size: 27px; }
  .section-heading p { font-size: 13px; }
  .feature-grid { grid-template-columns: 1fr; gap: 12px; }
  .feature-card { padding: 21px; }
  .feature-card h3 { margin-top: 15px; }
  .feature-card p { min-height: 0; margin-bottom: 19px; }
  .about-section { padding: 53px 24px; }
  .about-inner p { font-size: 13px; }
  .site-footer { padding: 24px 20px; flex-wrap: wrap; gap: 12px; }
  .site-footer p { order: 3; flex-basis: 100%; margin: 0; }
}
@media (max-width: 360px) {
  .hero { padding-left: 18px; padding-right: 18px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .button { width: 100%; }
  .visual { margin-left: -12px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}