:root {
  --bg: #04070d;
  --panel: rgba(7, 14, 29, 0.7);
  --panel-strong: rgba(12, 21, 42, 0.88);
  --line: rgba(126, 150, 192, 0.18);
  --text: #f4f7ff;
  --muted: #98a8c4;
  --teal: #45e0c4;
  --cyan: #67baff;
  --orange: #ff8c62;
  --shadow: 0 32px 90px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 20%, rgba(69, 224, 196, 0.15), transparent 28%),
    radial-gradient(circle at 88% 16%, rgba(103, 186, 255, 0.13), transparent 24%),
    radial-gradient(circle at 50% 100%, rgba(255, 140, 98, 0.13), transparent 38%),
    linear-gradient(180deg, #04070d 0%, #09111e 48%, #05080f 100%);
}

.aurora,
.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
}

.aurora-a {
  background: radial-gradient(circle at 22% 24%, rgba(69, 224, 196, 0.14), transparent 20%);
}

.aurora-b {
  background: radial-gradient(circle at 76% 12%, rgba(103, 186, 255, 0.12), transparent 18%);
}

.noise {
  opacity: 0.08;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, black, transparent);
}

.site-header,
main {
  position: relative;
  z-index: 1;
}

.site-header {
  width: min(1200px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--teal), var(--cyan));
  box-shadow: 0 0 30px rgba(69, 224, 196, 0.8);
}

.brand-name,
.site-nav a,
.eyebrow {
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.site-nav a,
.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 12px;
}

main {
  width: min(1200px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 20px 0 64px;
}

.hero,
.section-block,
.cta-strip,
.trust-strip {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 32px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  padding: 44px;
  margin-top: 20px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--cyan);
  font-size: 12px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(42px, 6vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.05em;
  max-width: 12ch;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(26px, 3vw, 42px);
  letter-spacing: -0.04em;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.hero-text,
.feature-card p,
.engine-card li,
.scene-card p,
.side-card p,
.cta-text,
.proof-card p,
.faq-item p,
.roadmap-item p,
.trust-item span,
.section-copy,
.footer-brand small {
  color: var(--muted);
  line-height: 1.75;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 18px;
  font-weight: 700;
  text-decoration: none;
}

.primary-link {
  color: #07131d;
  background: linear-gradient(135deg, var(--teal), var(--cyan));
  box-shadow: 0 18px 40px rgba(69, 224, 196, 0.2);
}

.secondary-link {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.hero-meta,
.trust-strip,
.feature-grid,
.module-grid,
.proof-grid,
.scene-grid,
.status-grid {
  display: grid;
  gap: 16px;
}

.hero-meta {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 28px;
}

.trust-strip {
  margin-top: 22px;
  padding: 20px 24px;
  grid-template-columns: repeat(3, 1fr);
}

.feature-grid,
.module-grid,
.status-grid {
  grid-template-columns: repeat(4, 1fr);
}

.proof-grid,
.scene-grid {
  grid-template-columns: repeat(3, 1fr);
}

.meta-card,
.glass-card,
.feature-card,
.engine-card,
.scene-card,
.module-card,
.status-card,
.proof-card,
.faq-item,
.roadmap-item,
.trust-item {
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: 24px;
}

.meta-card,
.feature-card,
.module-card,
.scene-card,
.status-card,
.proof-card,
.faq-item,
.roadmap-item,
.trust-item {
  padding: 22px;
}

.meta-card span,
.metric-row span,
.mini-title,
.feature-index,
.module-tag,
.roadmap-phase,
.status-card span {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.meta-card strong,
.metric-row strong,
.status-card strong {
  display: block;
  margin-top: 10px;
}

.meta-card strong {
  font-size: 20px;
}

.status-card strong {
  font-size: 24px;
}

.hero-visual {
  display: grid;
  gap: 18px;
  align-content: center;
}

.glass-card {
  padding: 22px;
  position: relative;
  overflow: hidden;
}

.main-card {
  min-height: 360px;
}

.card-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 13px;
}

.signal {
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

.signal.live {
  color: var(--teal);
  background: rgba(69, 224, 196, 0.14);
}

.metric-stack {
  display: grid;
  gap: 18px;
}

.metric-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: baseline;
}

.metric-row strong {
  margin-top: 0;
  text-align: right;
  font-size: 20px;
}

.wave-grid {
  position: absolute;
  right: -18px;
  bottom: -10px;
  width: 240px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  transform: rotate(-8deg);
}

.wave-grid span {
  display: block;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(103, 186, 255, 0.65), rgba(69, 224, 196, 0.18));
  animation: rise 3.8s ease-in-out infinite;
}

.wave-grid span:nth-child(3n) { height: 54px; }
.wave-grid span:nth-child(4n) { height: 78px; }
.wave-grid span:nth-child(5n) { height: 38px; }

@keyframes rise {
  0%, 100% { transform: translateY(8px); opacity: 0.55; }
  50% { transform: translateY(-8px); opacity: 1; }
}

.side-card h2 {
  font-size: 28px;
}

.positive {
  color: var(--teal);
}

.negative {
  color: var(--orange);
}

.section-block,
.cta-strip {
  margin-top: 22px;
  padding: 34px;
}

.section-head {
  max-width: 760px;
  margin-bottom: 24px;
}

.feature-index {
  display: inline-block;
  margin-bottom: 18px;
}

.module-tag {
  margin-bottom: 16px;
  color: var(--cyan);
  letter-spacing: 0.12em;
}

.engine-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 18px;
  align-items: stretch;
}

.engine-card {
  padding: 24px;
}

.bullet-list {
  margin: 0;
  padding-left: 18px;
}

.bullet-list li + li {
  margin-top: 12px;
}

.engine-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  align-items: center;
}

.flow-node,
.flow-arrow {
  border-radius: 22px;
}

.flow-node {
  min-height: 140px;
  padding: 20px;
  display: flex;
  align-items: flex-end;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  font-weight: 700;
}

.accent-node {
  background: linear-gradient(180deg, rgba(69, 224, 196, 0.18), rgba(103, 186, 255, 0.1));
}

.flow-arrow {
  height: 2px;
  background: linear-gradient(90deg, rgba(103, 186, 255, 0.15), rgba(69, 224, 196, 0.7));
}

.roadmap-list,
.faq-list {
  display: grid;
  gap: 16px;
}

.roadmap-item,
.faq-item {
  display: block;
}

.roadmap-phase {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--cyan);
}

.cta-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.site-footer {
  width: min(1200px, calc(100vw - 32px));
  margin: 0 auto 40px;
  padding: 0 0 20px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 18px;
  color: var(--muted);
}

.footer-brand p {
  margin: 8px 0 4px;
}

.footer-links {
  display: grid;
  gap: 10px;
  align-content: start;
}

.footer-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  font-size: 13px;
}

@media (max-width: 1100px) {
  .hero,
  .engine-layout,
  .cta-strip {
    grid-template-columns: 1fr;
    display: grid;
  }

  .hero-meta,
  .trust-strip,
  .feature-grid,
  .module-grid,
  .proof-grid,
  .scene-grid,
  .status-grid,
  .site-footer {
    grid-template-columns: repeat(2, 1fr);
  }

  .engine-flow {
    grid-template-columns: 1fr;
  }

  .flow-arrow {
    width: 2px;
    height: 34px;
    justify-self: center;
    background: linear-gradient(180deg, rgba(103, 186, 255, 0.15), rgba(69, 224, 196, 0.7));
  }
}

@media (max-width: 760px) {
  .site-header,
  main,
  .site-footer {
    width: min(100vw - 20px, 1200px);
  }

  .site-header {
    padding-top: 14px;
    flex-direction: column;
    align-items: flex-start;
  }

  .hero,
  .section-block,
  .cta-strip,
  .trust-strip {
    padding: 22px;
    border-radius: 24px;
  }

  .hero-meta,
  .trust-strip,
  .feature-grid,
  .module-grid,
  .proof-grid,
  .scene-grid,
  .status-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: none;
  }

  .metric-row,
  .cta-actions,
  .site-footer,
  .footer-copy {
    flex-direction: column;
    align-items: flex-start;
  }

  .metric-row strong {
    text-align: left;
  }
}