:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --ink: #1f2933;
  --muted: #697586;
  --line: #d9dee7;
  --brand: #0f766e;
  --accent: #c2410c;
  --surface: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 0 6vw;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
}

.brand {
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
}

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

.nav a {
  text-decoration: none;
}

.hero {
  display: grid;
  min-height: 520px;
  align-items: center;
  padding: 72px 6vw;
  background:
    linear-gradient(110deg, rgba(15, 118, 110, 0.92), rgba(31, 41, 51, 0.76)),
    url("/images/site-placeholder.svg") center / cover;
  color: #ffffff;
}

.hero > div,
.section,
.page {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 12px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0 0 18px;
  font-size: clamp(38px, 6vw, 76px);
  line-height: 1.06;
}

h2 {
  margin: 0 0 10px;
  font-size: 22px;
}

p {
  max-width: 720px;
  margin: 0 0 20px;
  color: var(--muted);
}

.hero p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 6px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
}

.section {
  padding: 64px 6vw;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.grid article {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.page {
  padding: 72px 6vw;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 6vw;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding-top: 18px;
    padding-bottom: 18px;
  }

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