:root {
  --ai-bg: #071017;
  --ai-bg-2: #0b1722;
  --ai-panel: rgba(13, 31, 44, 0.78);
  --ai-line: rgba(96, 222, 190, 0.28);
  --ai-cyan: #65e6d2;
  --ai-blue: #5ea9ff;
  --ai-gold: #f4c96b;
  --ai-text: #eef7ff;
  --ai-muted: #9db2c4;
}

* {
  box-sizing: border-box;
}

.ai-page {
  margin: 0;
  color: var(--ai-text);
  background:
    linear-gradient(90deg, rgba(101, 230, 210, .06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(94, 169, 255, .05) 1px, transparent 1px),
    linear-gradient(180deg, #061019 0%, #09131c 50%, #070d13 100%);
  background-size: 72px 72px, 72px 72px, auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

.ai-container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.ai-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5, 13, 20, .88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(101, 230, 210, .16);
}

.ai-nav-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.ai-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ai-text);
  text-decoration: none;
  font-weight: 800;
  font-size: 20px;
}

.ai-brand img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.ai-links {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

.ai-links a {
  color: #c6d5e1;
  text-decoration: none;
  font-size: 15px;
}

.ai-links a:hover {
  color: var(--ai-cyan);
}

.ai-hero {
  position: relative;
  overflow: hidden;
  min-height: 680px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(101, 230, 210, .15);
}

.ai-scanline {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(101, 230, 210, .08) 48%, transparent 50%);
  background-size: 100% 140px;
  opacity: .5;
  pointer-events: none;
}

.ai-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr);
  gap: 54px;
  align-items: center;
  padding: 92px 0;
}

.ai-kicker {
  margin: 0 0 16px;
  color: var(--ai-cyan);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.ai-hero h1 {
  margin: 0;
  max-width: 720px;
  font-size: 58px;
  line-height: 1.12;
  letter-spacing: 0;
}

.ai-lead {
  max-width: 690px;
  margin: 24px 0 0;
  color: #c3d2de;
  font-size: 20px;
  line-height: 1.8;
}

.ai-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.ai-actions-center {
  justify-content: center;
}

.ai-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 800;
  font-size: 15px;
}

.ai-btn-primary {
  color: #071017;
  background: linear-gradient(135deg, var(--ai-cyan), var(--ai-gold));
  box-shadow: 0 0 30px rgba(101, 230, 210, .22);
}

.ai-btn-secondary {
  color: var(--ai-text);
  border: 1px solid rgba(101, 230, 210, .42);
  background: rgba(10, 28, 41, .74);
}

.ai-trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.ai-trust-row span {
  padding: 8px 12px;
  border: 1px solid rgba(94, 169, 255, .25);
  color: #c2d5e5;
  background: rgba(8, 24, 36, .72);
  border-radius: 6px;
  font-size: 13px;
}

.ai-radar {
  min-height: 460px;
  display: grid;
  place-items: center;
}

.radar-frame {
  position: relative;
  width: min(450px, 100%);
  aspect-ratio: 1;
  border: 1px solid rgba(101, 230, 210, .22);
  border-radius: 50%;
  background:
    repeating-radial-gradient(circle, rgba(101,230,210,.12) 0, rgba(101,230,210,.12) 1px, transparent 2px, transparent 76px),
    conic-gradient(from 15deg, rgba(101,230,210,.35), rgba(94,169,255,.14), rgba(244,201,107,.22), rgba(101,230,210,.35));
  box-shadow: inset 0 0 70px rgba(101, 230, 210, .08), 0 0 70px rgba(94, 169, 255, .15);
}

.radar-frame::before,
.radar-frame::after {
  content: "";
  position: absolute;
  inset: 10%;
  border: 1px solid rgba(101, 230, 210, .22);
  border-radius: 50%;
}

.radar-frame::after {
  inset: 27%;
}

.radar-core {
  position: absolute;
  inset: 35%;
  display: grid;
  place-items: center;
  text-align: center;
  border: 1px solid rgba(244, 201, 107, .5);
  border-radius: 50%;
  background: rgba(7, 16, 23, .88);
  box-shadow: 0 0 40px rgba(244, 201, 107, .14);
}

.radar-core span {
  color: var(--ai-cyan);
  font-size: 44px;
  font-weight: 900;
  line-height: 1;
}

.radar-core strong {
  color: var(--ai-gold);
  font-size: 14px;
}

.radar-node {
  position: absolute;
  min-width: 74px;
  min-height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(101, 230, 210, .4);
  border-radius: 6px;
  background: rgba(7, 16, 23, .9);
  color: #dcecff;
  font-weight: 800;
}

.node-a { top: 8%; left: 42%; }
.node-b { right: 4%; top: 45%; }
.node-c { bottom: 8%; left: 42%; }
.node-d { left: 4%; top: 45%; }

.ai-section {
  padding: 88px 0;
}

.ai-dark {
  background: rgba(3, 10, 16, .54);
  border-top: 1px solid rgba(101, 230, 210, .12);
  border-bottom: 1px solid rgba(101, 230, 210, .12);
}

.ai-section-head {
  max-width: 850px;
  margin-bottom: 34px;
}

.ai-section-head h2,
.ai-insight h2,
.ai-cta h2 {
  margin: 0;
  font-size: 38px;
  line-height: 1.28;
  letter-spacing: 0;
}

.ai-grid {
  display: grid;
  gap: 20px;
}

.ai-grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ai-panel,
.ai-scenario-board article,
.ai-flow div,
.ai-metrics div {
  border: 1px solid rgba(101, 230, 210, .18);
  background: linear-gradient(180deg, rgba(15, 36, 51, .88), rgba(8, 20, 30, .88));
  border-radius: 8px;
  box-shadow: 0 16px 50px rgba(0, 0, 0, .18);
}

.ai-panel {
  padding: 26px;
}

.ai-index {
  color: var(--ai-gold);
  font-weight: 900;
}

.ai-panel h3,
.ai-scenario-board h3,
.ai-flow h3 {
  margin: 14px 0 10px;
  font-size: 22px;
}

.ai-panel p,
.ai-scenario-board p,
.ai-flow p,
.ai-insight p,
.ai-cta p {
  margin: 0;
  color: var(--ai-muted);
  font-size: 16px;
  line-height: 1.8;
}

.ai-scenario-board {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}

.ai-scenario-board article {
  min-height: 210px;
  padding: 24px;
}

.ai-scenario-board article:nth-child(1),
.ai-scenario-board article:nth-child(2) {
  grid-column: span 3;
}

.ai-scenario-board article:nth-child(n+3) {
  grid-column: span 2;
}

.ai-scenario-board span {
  color: var(--ai-cyan);
  font-weight: 800;
}

.ai-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.ai-flow div {
  padding: 22px;
  min-height: 190px;
}

.ai-flow strong {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  color: #071017;
  background: var(--ai-gold);
}

.ai-insight {
  background: linear-gradient(135deg, rgba(94, 169, 255, .12), rgba(101, 230, 210, .08));
}

.ai-insight-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .78fr);
  gap: 34px;
  align-items: center;
}

.ai-metrics {
  display: grid;
  gap: 16px;
}

.ai-metrics div {
  padding: 24px;
}

.ai-metrics strong {
  display: block;
  color: var(--ai-gold);
  font-size: 30px;
}

.ai-metrics span {
  color: #c6d5e1;
}

.ai-cta {
  text-align: center;
  background:
    linear-gradient(90deg, rgba(101,230,210,.08) 1px, transparent 1px),
    linear-gradient(0deg, rgba(94,169,255,.07) 1px, transparent 1px),
    #071017;
  background-size: 46px 46px;
}

.ai-cta p {
  max-width: 780px;
  margin: 16px auto 0;
}

.ai-footer {
  padding: 34px 0;
  color: #9db2c4;
  background: #050b10;
  border-top: 1px solid rgba(101, 230, 210, .16);
}

.ai-footer p {
  margin: 6px 0;
}

@media (max-width: 900px) {
  .ai-container {
    width: min(100% - 28px, 760px);
  }

  .ai-nav-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .ai-links {
    gap: 14px;
  }

  .ai-hero {
    min-height: auto;
  }

  .ai-hero-grid,
  .ai-insight-grid {
    grid-template-columns: 1fr;
    padding: 58px 0;
  }

  .ai-hero h1 {
    font-size: 40px;
  }

  .ai-lead {
    font-size: 17px;
  }

  .ai-grid-3,
  .ai-flow {
    grid-template-columns: 1fr;
  }

  .ai-scenario-board {
    grid-template-columns: 1fr;
  }

  .ai-scenario-board article:nth-child(n) {
    grid-column: auto;
  }

  .ai-radar {
    min-height: 360px;
  }

  .radar-frame {
    width: min(340px, 100%);
  }

  .ai-section {
    padding: 58px 0;
  }

  .ai-section-head h2,
  .ai-insight h2,
  .ai-cta h2 {
    font-size: 30px;
  }
}