:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5f6b7a;
  --line: #dfe5ec;
  --panel: #f7f9fb;
  --brand: #0f6c81;
  --brand-strong: #094f60;
  --accent: #d4842f;
  --surface: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--surface);
  line-height: 1.6;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  position: sticky;
  top: 0;
  z-index: 5;
}

.nav {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--ink);
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--brand);
  position: relative;
}

.brand-mark::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border: 3px solid #fff;
  border-radius: 50%;
  top: 7px;
  left: 7px;
}

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

.hero {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 44px;
  align-items: center;
}

.eyebrow {
  color: var(--brand-strong);
  font-weight: 700;
  letter-spacing: 0;
  margin-bottom: 12px;
}

h1 {
  margin: 0;
  font-size: 46px;
  line-height: 1.12;
  letter-spacing: 0;
}

.lead {
  margin: 20px 0 28px;
  color: var(--muted);
  font-size: 18px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid var(--brand);
  background: var(--brand);
  color: #fff;
  font-weight: 700;
}

.button.secondary {
  background: transparent;
  color: var(--brand);
}

.dashboard-visual {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(23, 32, 51, 0.08);
  overflow: hidden;
}

.visual-top {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
}

.visual-body {
  padding: 20px;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.metric {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.metric strong {
  display: block;
  font-size: 22px;
}

.metric span {
  color: var(--muted);
  font-size: 13px;
}

.bars {
  display: grid;
  gap: 12px;
}

.bar {
  display: grid;
  grid-template-columns: 84px 1fr 44px;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--muted);
}

.track {
  height: 10px;
  border-radius: 999px;
  background: #e8edf2;
  overflow: hidden;
}

.fill {
  height: 100%;
  background: var(--brand);
}

.section {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 12px;
  font-size: 28px;
  letter-spacing: 0;
}

.section-intro {
  margin: 0 0 28px;
  color: var(--muted);
  max-width: 760px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background: #fff;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.policy {
  padding: 48px 0;
  max-width: 860px;
}

.policy h1 {
  font-size: 34px;
  margin-bottom: 20px;
}

.policy h2 {
  margin-top: 30px;
  font-size: 22px;
}

.policy p,
.policy li {
  color: var(--muted);
}

.site-footer {
  padding: 28px 0;
  background: var(--panel);
  color: var(--muted);
  font-size: 14px;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

@media (max-width: 820px) {
  .nav {
    height: auto;
    padding: 16px 0;
    align-items: flex-start;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .hero-grid,
  .cards {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 34px;
  }

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