:root {
  --bg: #050816;
  --panel: rgba(10, 16, 34, 0.88);
  --panel-soft: rgba(12, 20, 42, 0.72);
  --line: rgba(113, 151, 255, 0.16);
  --text: #ecf2ff;
  --muted: #9ca9c6;
  --brand: #7c8fff;
  --brand-2: #55d7ff;
  --success: #84f7d8;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.34);
  --radius: 28px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 0%, rgba(124, 143, 255, 0.22), transparent 24%),
    radial-gradient(circle at 100% 10%, rgba(85, 215, 255, 0.14), transparent 24%),
    linear-gradient(180deg, #050816 0%, #070c1c 40%, #040611 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  width: min(var(--max-width), calc(100% - 32px));
  margin: 0 auto;
}

.site-top {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(5, 8, 22, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.nav-box,
.section-head,
.footer-box,
.hero-actions,
.contact-actions {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

.nav-box {
  min-height: 78px;
  align-items: center;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.brand strong {
  font-size: 20px;
  letter-spacing: 0.04em;
}

.brand span,
.nav-links,
.section-head p,
.muted,
.hero-copy,
.card p,
.metric p,
.timeline-card p,
.contact-card p,
.footer-copy,
.policy-card p {
  color: var(--muted);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
}

.hero {
  padding: 74px 0 34px;
}

.hero-shell,
.card,
.metric,
.timeline-card,
.contact-card,
.policy-card,
.trust-strip {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-shell {
  padding: 52px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-shell::before {
  content: "";
  position: absolute;
  inset: auto -10% -50px;
  height: 180px;
  background: radial-gradient(circle, rgba(124, 143, 255, 0.22), transparent 62%);
  pointer-events: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(124, 143, 255, 0.14);
  color: #bcc8ff;
  font-size: 13px;
  font-weight: 600;
}

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

h1 {
  margin-top: 22px;
  font-size: clamp(36px, 5vw, 62px);
  line-height: 1.06;
}

.hero-copy {
  max-width: 780px;
  margin: 18px auto 0;
  font-size: 17px;
  line-height: 1.92;
}

.hero-actions {
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 600;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 22px;
  overflow: hidden;
}

.trust-item {
  padding: 22px 24px;
  border-right: 1px solid var(--line);
}

.trust-item:last-child {
  border-right: none;
}

.trust-item strong {
  display: block;
  font-size: 16px;
}

.trust-item span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}

.section {
  padding: 28px 0;
}

.section-head {
  align-items: flex-end;
  margin-bottom: 20px;
}

.section-head p {
  max-width: 620px;
  line-height: 1.82;
}

.grid-3,
.grid-2,
.timeline,
.policy-grid {
  display: grid;
  gap: 18px;
}

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

.grid-2,
.policy-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.metric,
.timeline-card,
.contact-card,
.policy-card {
  padding: 28px;
  background: var(--panel-soft);
}

.card h3,
.metric h3,
.timeline-card h3,
.contact-card h3,
.policy-card h3,
.policy-card h1 {
  margin-bottom: 12px;
  font-size: 22px;
}

.card p,
.metric p,
.timeline-card p,
.contact-card p,
.policy-card p {
  line-height: 1.86;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}

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

.metric strong {
  display: block;
  font-size: 34px;
}

.metric small {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--success);
}

.timeline {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.timeline-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(124, 143, 255, 0.14);
  color: var(--brand-2);
  font-weight: 700;
}

.timeline-card h3 {
  margin-top: 16px;
}

.contact-actions {
  flex-wrap: wrap;
  margin-top: 20px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
}

.site-footer {
  padding: 30px 0 44px;
}

.footer-box {
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  align-items: flex-start;
}

.footer-copy {
  line-height: 1.84;
}

.footer-copy a {
  color: #c9d5ff;
}

@media (max-width: 960px) {
  .nav-box,
  .section-head,
  .footer-box {
    flex-direction: column;
    align-items: flex-start;
  }

  .trust-strip,
  .grid-3,
  .grid-2,
  .metric-grid,
  .timeline,
  .policy-grid {
    grid-template-columns: 1fr;
  }

  .trust-item {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .trust-item:last-child {
    border-bottom: none;
  }

  .hero-shell,
  .card,
  .metric,
  .timeline-card,
  .contact-card,
  .policy-card {
    padding: 22px;
  }
}