:root {
  --bg: #f7f2e9;
  --panel: #ffffff;
  --ink: #191817;
  --muted: #6f675f;
  --gold: #c89b3c;
  --gold-dark: #8a6720;
  --charcoal: #171513;
  --line: rgba(25, 24, 23, 0.12);
  --shadow: 0 24px 70px rgba(28, 22, 13, 0.14);
  --radius: 28px;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.section { padding: 92px 0; }
.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  background: var(--ink);
  color: #fff;
  padding: 8px 12px;
  border-radius: 10px;
  z-index: 99;
}
.skip-link:focus { left: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 242, 233, 0.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(25, 24, 23, 0.08);
}
.nav-wrap {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { width: 54px; height: 54px; object-fit: contain; }
.brand-text { display: grid; line-height: 1.1; }
.brand-text strong { font-size: 18px; letter-spacing: 0.04em; }
.brand-text small { color: var(--muted); font-size: 13px; }
.site-nav { display: flex; align-items: center; gap: 26px; color: rgba(25, 24, 23, 0.76); }
.site-nav a { font-size: 15px; transition: color .2s ease; }
.site-nav a:hover { color: var(--ink); }
.lang-btn {
  border: 1px solid var(--line);
  background: #fff9;
  border-radius: 999px;
  padding: 8px 13px;
  color: var(--ink);
  cursor: pointer;
}
.nav-toggle { display: none; border: 0; background: transparent; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; }

.hero {
  min-height: calc(100vh - 78px);
  display: flex;
  align-items: center;
  background:
    radial-gradient(circle at 12% 16%, rgba(200, 155, 60, 0.24), transparent 32%),
    radial-gradient(circle at 80% 28%, rgba(255, 255, 255, 0.85), transparent 28%);
}
.hero-grid { display: grid; grid-template-columns: 1.1fr .74fr; gap: 64px; align-items: center; }
.eyebrow {
  color: var(--gold-dark);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 13px;
  font-weight: 700;
  margin: 0 0 14px;
}
.eyebrow.gold { color: var(--gold); }
h1, h2, h3, p { margin-top: 0; }
h1 {
  font-size: clamp(42px, 6vw, 74px);
  line-height: 1.05;
  letter-spacing: -0.05em;
  margin-bottom: 24px;
}
h2 { font-size: clamp(32px, 4vw, 52px); line-height: 1.15; letter-spacing: -0.035em; margin-bottom: 20px; }
h3 { font-size: 22px; line-height: 1.22; margin-bottom: 12px; }
.hero-sub { font-size: 20px; color: var(--muted); max-width: 680px; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 13px 24px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn.primary { background: var(--ink); color: #fff; box-shadow: 0 12px 26px rgba(0,0,0,.16); }
.btn.secondary { border-color: var(--line); background: rgba(255,255,255,.66); }
.btn.full { width: 100%; }
.trust-strip { display: flex; flex-wrap: wrap; gap: 10px; }
.trust-strip span {
  border: 1px solid rgba(25, 24, 23, .12);
  background: rgba(255,255,255,.54);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--muted);
  font-size: 14px;
}
.hero-card {
  background: var(--charcoal);
  color: #fff;
  border-radius: var(--radius);
  padding: 44px;
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}
.hero-card:after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(200,155,60,.38);
  border-radius: 50%;
  right: -80px;
  bottom: -86px;
}
.card-topline { width: 76px; height: 4px; background: var(--gold); border-radius: 999px; margin-bottom: 30px; }
.card-label { color: var(--gold); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; font-size: 12px; }
.hero-card h2 { font-size: 36px; color: #fff; }
.hero-card ul { padding: 0; margin: 28px 0 0; list-style: none; display: grid; gap: 16px; }
.hero-card li { color: rgba(255,255,255,.8); position: relative; padding-left: 28px; }
.hero-card li:before { content: ""; position: absolute; left: 0; top: .7em; width: 10px; height: 10px; background: var(--gold); border-radius: 50%; }

.intro-band { padding: 34px 0; background: var(--charcoal); color: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stats-grid div { display: grid; gap: 4px; border-left: 1px solid rgba(255,255,255,.2); padding-left: 18px; }
.stats-grid strong { color: var(--gold); font-size: 20px; }
.stats-grid span { color: rgba(255,255,255,.82); }

.section-heading { max-width: 740px; margin-bottom: 42px; }
.section-heading p:last-child { color: var(--muted); font-size: 18px; }
.section-heading.narrow { max-width: 580px; }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card {
  background: rgba(255,255,255,.74);
  border: 1px solid rgba(25, 24, 23, .08);
  border-radius: 24px;
  padding: 30px;
  min-height: 248px;
  box-shadow: 0 12px 40px rgba(28, 22, 13, 0.06);
}
.service-card.highlight { background: #fff; border-color: rgba(200,155,60,.36); }
.service-icon { color: var(--gold-dark); font-weight: 800; letter-spacing: .08em; display: inline-block; margin-bottom: 20px; }
.service-card p { color: var(--muted); margin-bottom: 0; }

.dark-section { background: var(--charcoal); color: #fff; }
.about-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 70px; align-items: start; }
.about-copy p { color: rgba(255,255,255,.78); font-size: 18px; }
.about-copy .note { color: rgba(255,255,255,.6); font-size: 15px; border-left: 3px solid var(--gold); padding-left: 18px; margin-top: 28px; }

.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.timeline-item {
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(25, 24, 23, .08);
  border-radius: 24px;
  padding: 28px;
}
.timeline-item span {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: #fff;
  border-radius: 50%;
  margin-bottom: 18px;
  font-weight: 800;
}
.timeline-item p { color: var(--muted); margin-bottom: 0; }

.contact-section { background: linear-gradient(180deg, rgba(255,255,255,.38), rgba(255,255,255,0)); }
.contact-grid { display: grid; grid-template-columns: .82fr 1fr; gap: 58px; align-items: start; }
.contact-list { display: grid; gap: 12px; margin-top: 30px; color: var(--muted); }
.contact-list a { color: var(--ink); font-weight: 700; }
.contact-form {
  background: #fff;
  border: 1px solid rgba(25, 24, 23, .08);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 18px;
}
label { display: grid; gap: 8px; font-weight: 700; }
input, textarea, select {
  border: 1px solid rgba(25, 24, 23, .16);
  border-radius: 16px;
  padding: 13px 14px;
  background: #fbfaf8;
  outline: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--gold); box-shadow: 0 0 0 4px rgba(200,155,60,.14); }
.form-note { color: var(--muted); font-size: 13px; margin-bottom: 0; }

.site-footer { background: var(--charcoal); color: #fff; padding: 54px 0 28px; }
.footer-grid { display: flex; justify-content: space-between; gap: 30px; border-bottom: 1px solid rgba(255,255,255,.12); padding-bottom: 34px; }
.footer-grid img { width: 220px; max-width: 100%; height: auto; margin-bottom: 18px; }
.footer-grid p { color: rgba(255,255,255,.7); margin-bottom: 0; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; color: rgba(255,255,255,.76); }
.copyright { display: flex; justify-content: space-between; gap: 18px; color: rgba(255,255,255,.48); font-size: 13px; padding-top: 24px; }

@media (max-width: 920px) {
  .section { padding: 70px 0; }
  .hero-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero { min-height: auto; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline, .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .footer-grid img { width: 190px; }
  .container { width: min(100% - 28px, var(--max)); }
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed;
    left: 14px;
    right: 14px;
    top: 84px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 10px;
    box-shadow: var(--shadow);
  }
  .site-nav.open { display: flex; }
  .site-nav a, .site-nav button { padding: 13px 14px; text-align: left; }
  .brand-text small { display: none; }
  h1 { font-size: 42px; }
  .hero-card { padding: 30px; }
  .hero-card h2 { font-size: 30px; }
  .services-grid, .timeline, .stats-grid { grid-template-columns: 1fr; }
  .footer-grid, .copyright { flex-direction: column; }
}