:root {
  color-scheme: dark;
  --bg: #071318;
  --panel: #10252c;
  --panel-soft: #15323b;
  --text: #f6fbfc;
  --muted: #a9c0c6;
  --orange: #ff9f43;
  --cyan: #50d5d8;
  --line: rgba(255, 255, 255, 0.1);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 15% 5%, rgba(80, 213, 216, 0.13), transparent 28rem),
    radial-gradient(circle at 90% 20%, rgba(255, 159, 67, 0.11), transparent 25rem),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.shell {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
}

.mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(145deg, var(--orange), #ff7a45);
  color: #102026;
  font-size: 21px;
  box-shadow: 0 10px 30px rgba(255, 159, 67, 0.22);
}

.nav-links {
  display: flex;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--text); }

.hero {
  padding: 112px 0 84px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  padding: 7px 13px;
  border: 1px solid rgba(80, 213, 216, 0.32);
  border-radius: 999px;
  background: rgba(80, 213, 216, 0.08);
  color: var(--cyan);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

h1 {
  margin: 22px auto 16px;
  max-width: 820px;
  font-size: clamp(42px, 8vw, 78px);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.hero-copy {
  max-width: 670px;
  margin: 0 auto;
  color: var(--muted);
  font-size: clamp(17px, 2.4vw, 21px);
}

.actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 21px;
  border-radius: 15px;
  background: var(--orange);
  color: #102026;
  font-weight: 800;
  text-decoration: none;
}

.button.secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 0 auto 72px;
}

.stat, .card, .legal-card {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(21, 50, 59, 0.92), rgba(16, 37, 44, 0.86));
  box-shadow: var(--shadow);
}

.stat {
  padding: 24px;
  border-radius: 21px;
  text-align: center;
}

.stat strong {
  display: block;
  color: var(--orange);
  font-size: 28px;
}

.stat span { color: var(--muted); font-size: 14px; }

.section { padding: 34px 0 76px; }

.section-heading {
  max-width: 650px;
  margin-bottom: 28px;
}

h2 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
}

.section-heading p, .muted { color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.card {
  min-height: 190px;
  padding: 24px;
  border-radius: 22px;
}

.card-icon {
  color: var(--cyan);
  font-size: 23px;
  font-weight: 800;
}

.card h3 { margin: 15px 0 7px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.privacy-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 30px;
  border: 1px solid rgba(80, 213, 216, 0.24);
  border-radius: 24px;
  background: rgba(80, 213, 216, 0.07);
}

.privacy-strip h2 { font-size: 26px; }
.privacy-strip p { margin: 4px 0 0; color: var(--muted); }

.legal-page { padding: 64px 0 90px; }

.legal-header {
  max-width: 760px;
  margin-bottom: 28px;
}

.legal-header h1 {
  margin: 14px 0;
  font-size: clamp(36px, 6vw, 58px);
}

.legal-card {
  max-width: 860px;
  padding: clamp(24px, 5vw, 54px);
  border-radius: 26px;
}

.legal-card h2 {
  margin-top: 40px;
  font-size: 22px;
}

.legal-card h2:first-child { margin-top: 0; }
.legal-card p, .legal-card li { color: #c1d1d5; }
.legal-card li + li { margin-top: 8px; }
.legal-card a { color: var(--cyan); }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 30px 0 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.footer-links { display: flex; gap: 18px; }
.footer a { text-decoration: none; }

@media (max-width: 760px) {
  .nav-links { gap: 14px; font-size: 13px; }
  .hero { padding: 76px 0 58px; }
  .stats, .grid { grid-template-columns: 1fr; }
  .stat { text-align: left; }
  .privacy-strip, .footer { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 480px) {
  .shell { width: min(100% - 28px, 1080px); }
  .nav-links a:first-child { display: none; }
  .hero { text-align: left; }
  .actions { justify-content: flex-start; }
}