:root {
  color-scheme: light;
  --ink: #15201d;
  --muted: #66736f;
  --soft: #e3f0eb;
  --soft-2: #f4f8f5;
  --line: rgba(21, 32, 29, 0.1);
  --mint: #5ab5ac;
  --paper: #ffffff;
  --max: 980px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--soft-2);
}

body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
  background:
    linear-gradient(180deg, rgba(227, 240, 235, 0.9), rgba(244, 248, 245, 0.96) 42%, #f8faf7 100%);
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(244, 248, 245, 0.86);
  backdrop-filter: blur(18px);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
}

.mark {
  width: 32px;
  height: 32px;
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  background: linear-gradient(135deg, #16221f, #48635d 58%, #82c9bd);
  box-shadow: 0 12px 30px rgba(36, 89, 82, 0.18);
}

.links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.links a {
  text-decoration: none;
}

.hero,
.legal-hero,
.section,
.legal-content {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.hero {
  min-height: 68vh;
  padding-top: 88px;
  padding-bottom: 54px;
  display: grid;
  align-items: center;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--mint);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(42px, 8vw, 88px);
  line-height: 0.96;
  font-weight: 900;
}

.hero-copy {
  margin: 24px 0 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

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

.button {
  min-height: 46px;
  padding: 13px 18px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 800;
  background: var(--ink);
  color: white;
}

.button.secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
}

.section {
  padding-top: 46px;
  padding-bottom: 54px;
}

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

.card {
  border-radius: 20px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 44px rgba(42, 71, 65, 0.08);
}

.card h2,
.card h3 {
  margin: 0;
}

.card p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.75;
}

.legal-hero {
  padding-top: 76px;
  padding-bottom: 24px;
}

.legal-hero h1 {
  font-size: clamp(38px, 6vw, 66px);
}

.updated {
  margin-top: 18px;
  color: var(--muted);
  font-weight: 700;
}

.legal-content {
  padding-top: 20px;
  padding-bottom: 72px;
}

.legal-content article {
  border-radius: 24px;
  padding: 34px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 20px 60px rgba(42, 71, 65, 0.08);
}

.legal-content h2 {
  margin: 34px 0 12px;
  font-size: 22px;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p,
.legal-content li {
  color: var(--muted);
  line-height: 1.86;
}

.legal-content code {
  padding: 2px 6px;
  border-radius: 8px;
  background: var(--soft);
  color: var(--ink);
  font-family: inherit;
}

.site-footer {
  border-top: 1px solid var(--line);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 26px 24px 34px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 13px;
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    min-height: auto;
    padding-top: 64px;
  }

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

  .legal-content article {
    padding: 24px;
  }
}