:root {
  --ink: #17202a;
  --muted: #637083;
  --line: #d7dee8;
  --surface: #ffffff;
  --soft: #f4f7fb;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --gold: #b7791f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.7;
  background: var(--soft);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(215, 222, 232, 0.9);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  place-items: center;
  color: #fff;
  font-weight: 700;
  background: var(--accent);
  border-radius: 8px;
}

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

.brand strong {
  font-size: 16px;
  line-height: 1.2;
}

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

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

.nav a:hover {
  color: var(--accent-dark);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
  min-height: 72vh;
  padding: clamp(46px, 8vw, 96px) clamp(18px, 5vw, 72px);
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.10), rgba(183, 121, 31, 0.08)),
    #ffffff;
}

.hero-content,
.section,
.site-footer {
  max-width: 1120px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  line-height: 1.18;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  font-size: clamp(34px, 6vw, 64px);
}

h2 {
  font-size: clamp(26px, 4vw, 38px);
}

.hero-copy {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 700;
}

.primary-action {
  color: #fff;
  background: var(--accent);
}

.secondary-action {
  color: var(--accent-dark);
  border: 1px solid var(--line);
  background: #fff;
}

.contact-panel {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 20px 60px rgba(23, 32, 42, 0.10);
}

.panel-label {
  display: block;
  color: var(--muted);
  font-size: 14px;
}

.phone {
  display: block;
  margin: 10px 0 14px;
  color: var(--accent-dark);
  font-size: clamp(30px, 5vw, 42px);
  font-weight: 800;
  line-height: 1.1;
  overflow-wrap: anywhere;
}

.contact-panel p,
.section p {
  margin: 0;
  color: var(--muted);
}

.section {
  margin: 0 auto;
  padding: clamp(44px, 7vw, 76px) clamp(18px, 5vw, 72px);
}

.section-heading {
  margin-bottom: 24px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
}

.info-grid div,
.contact-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.info-grid .wide {
  grid-column: 1 / -1;
}

dt,
.contact-card span {
  color: var(--muted);
  font-size: 14px;
}

dd {
  margin: 6px 0 0;
  font-size: 18px;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(220px, 0.8fr);
  gap: 16px;
}

.contact-section > div:first-child {
  grid-row: span 2;
  padding-right: 24px;
}

.contact-section p {
  margin-top: 14px;
}

.contact-card a,
.contact-card p {
  display: block;
  margin-top: 8px;
  color: var(--ink);
  font-size: 20px;
  font-weight: 800;
  overflow-wrap: anywhere;
}

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

.statement p + p {
  margin-top: 14px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 0 auto;
  padding: 24px clamp(18px, 5vw, 72px) 38px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--accent-dark);
  font-weight: 700;
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero,
  .contact-section,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .contact-section > div:first-child {
    grid-row: auto;
    padding-right: 0;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 460px) {
  .brand strong {
    font-size: 14px;
  }

  .hero-actions a {
    width: 100%;
  }
}