:root {
  color-scheme: light;
  --ink: #17202c;
  --muted: #617087;
  --line: #d9e1ea;
  --paper: #f6f8fb;
  --panel: #ffffff;
  --green: #0f766e;
  --green-deep: #124f49;
  --red: #c84630;
  --blue: #245f9f;
  --gold: #b78322;
  --shadow: 0 22px 50px rgba(26, 38, 56, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family:
    "Microsoft YaHei",
    "PingFang SC",
    system-ui,
    sans-serif;
  background: var(--paper);
}

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

.site-shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 82px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 8px;
  color: #ffffff;
  font-size: 22px;
  font-weight: 800;
  background: var(--green);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 18px;
}

.brand small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a {
  padding: 8px 0;
}

.nav-links a:hover {
  color: var(--green-deep);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(420px, 1.04fr);
  align-items: center;
  gap: 42px;
  min-height: calc(100vh - 150px);
  padding: 42px 0 64px;
}

.hero-content {
  max-width: 610px;
}

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

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

h1 {
  margin-bottom: 20px;
  font-size: 60px;
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: 0;
}

.hero-text {
  max-width: 560px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 700;
}

.primary-link {
  color: #ffffff;
  background: var(--green-deep);
}

.secondary-link {
  border: 1px solid var(--line);
  color: var(--green-deep);
  background: #ffffff;
}

.hero-media {
  position: relative;
  margin: 0;
}

.hero-media::before {
  position: absolute;
  inset: 22px -16px -18px 24px;
  border-radius: 8px;
  background: #dfe8ef;
  content: "";
}

.hero-media img {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.info-band,
.business-section {
  padding: 70px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 26px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 18px;
}

.info-card,
.business-card {
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.info-card span,
.business-card span {
  display: block;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 13px;
}

.info-card p,
.business-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.8;
}

.wide {
  border-top: 4px solid var(--green);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.business-card {
  border-top: 4px solid var(--blue);
}

.business-card:nth-child(2) {
  border-top-color: var(--green);
}

.business-card:nth-child(3) {
  border-top-color: var(--gold);
}

.footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-height: 72px;
  padding: 18px;
  color: var(--muted);
  font-size: 14px;
  background: #ffffff;
  border-top: 1px solid var(--line);
}

.footer a {
  color: var(--blue);
}

@media (max-width: 900px) {
  .site-shell {
    width: min(100% - 28px, 720px);
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 18px 0;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 30px 0 56px;
  }

  .hero-media {
    order: -1;
  }

  .about-grid,
  .business-grid {
    grid-template-columns: 1fr;
  }

  .info-band,
  .business-section {
    padding: 52px 0;
  }
}

@media (max-width: 560px) {
  .brand strong {
    font-size: 16px;
  }

  .brand-mark {
    width: 44px;
    height: 44px;
  }

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

  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 25px;
  }

  .hero-text {
    font-size: 16px;
  }

  .footer {
    align-items: center;
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}