:root {
  --ink: #102033;
  --muted: #607086;
  --line: #d8e0ea;
  --panel: #ffffff;
  --bg: #f4f7fb;
  --navy: #102a43;
  --blue: #1d72b8;
  --cyan: #2ca6a4;
  --gold: #c4923a;
  --red: #b64646;
  --shadow: 0 18px 50px rgba(16, 32, 51, 0.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

img { max-width: 100%; display: block; }

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.nav-wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 235px;
}

.brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

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

.brand span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.3;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: flex-end;
}

.nav-links a {
  padding: 10px 11px;
  color: #263a50;
  font-size: 14px;
  border-radius: 6px;
}

.nav-links a:hover,
.nav-links a.active {
  background: #eaf2f8;
  color: var(--blue);
}

.lang-toggle {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  height: 38px;
  min-width: 84px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 700;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  width: 42px;
  height: 38px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 21px;
}

.hero {
  min-height: 82vh;
  display: flex;
  align-items: end;
  color: #fff;
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 25, 42, 0.86), rgba(10, 25, 42, 0.52) 48%, rgba(10, 25, 42, 0.18));
}

.hero-inner {
  position: relative;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 110px 0 76px;
}

.eyebrow {
  color: #96e3e1;
  font-weight: 800;
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0;
}

h1 {
  max-width: 820px;
  margin: 12px 0 18px;
  font-size: clamp(40px, 6vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero p {
  max-width: 720px;
  margin: 0 0 28px;
  color: #dce8f4;
  font-size: 19px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-weight: 800;
}

.button.primary { background: var(--cyan); color: #fff; }
.button.secondary { border-color: rgba(255,255,255,0.5); color: #fff; }
.button.dark { background: var(--navy); color: #fff; }

.section {
  padding: 76px 20px;
}

.section.white { background: #fff; }
.section.navy { background: var(--navy); color: #fff; }

.container {
  max-width: 1180px;
  margin: 0 auto;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head h2,
.page-title h1 {
  margin: 8px 0 12px;
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.08;
  letter-spacing: 0;
}

.section-head p,
.page-title p {
  color: var(--muted);
  font-size: 18px;
  margin: 0;
}

.navy .section-head p { color: #c8d8e8; }

.grid {
  display: grid;
  gap: 22px;
}

.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.two { grid-template-columns: repeat(2, 1fr); }
.grid.four { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(16, 32, 51, 0.06);
}

.card img {
  width: 100%;
  height: 230px;
  object-fit: cover;
}

.card-body { padding: 22px; }
.card h3 { margin: 0 0 10px; font-size: 22px; line-height: 1.2; }
.card p { margin: 0; color: var(--muted); }

.stat-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.stat {
  background: #fff;
  padding: 26px;
}

.stat strong {
  display: block;
  color: var(--blue);
  font-size: 34px;
  line-height: 1;
}

.stat span { color: var(--muted); font-size: 14px; }

.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 42px;
  align-items: center;
}

.split img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.list {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.list li {
  padding: 13px 15px;
  border-left: 4px solid var(--cyan);
  background: #fff;
  border-radius: 6px;
  color: #2d4055;
}

.page-hero {
  padding: 98px 20px 54px;
  color: #fff;
  background-size: cover;
  background-position: center;
  position: relative;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(13, 34, 55, 0.72);
}

.page-title {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
}

.page-title p { color: #d8e6f4; max-width: 780px; }

.profile-table {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.profile-table div {
  background: #fff;
  padding: 18px;
}

.profile-table span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.profile-table strong {
  display: block;
  margin-top: 4px;
  font-size: 18px;
}

.people {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.person {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.person strong { display: block; }
.person span { color: var(--muted); font-size: 14px; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.contact-box {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
}

.contact-box h3 { margin-top: 0; }
.contact-box p { margin: 7px 0; color: var(--muted); }

.site-footer {
  background: #071827;
  color: #d7e4ef;
  padding: 46px 20px 24px;
}

.footer-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 34px;
}

.site-footer h3,
.site-footer h4 { margin: 0 0 12px; color: #fff; }
.site-footer p { color: #b7c8d7; margin: 0; }
.footer-links { display: grid; gap: 7px; }
.footer-links a { color: #d7e4ef; }
.footer-bottom {
  max-width: 1180px;
  margin: 28px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.14);
  color: #9fb2c3;
  font-size: 13px;
}

[data-lang="en"] [data-zh],
[data-lang="zh"] [data-en] { display: none !important; }

@media (max-width: 960px) {
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-links {
    display: none;
    position: absolute;
    left: 20px;
    right: 20px;
    top: 70px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
  }
  .nav-links.open { display: flex; }
  .nav-wrap { position: relative; }
  .grid.three, .grid.two, .grid.four, .split, .contact-grid, .footer-grid, .profile-table { grid-template-columns: 1fr; }
  .stat-band, .people { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .brand { min-width: 0; }
  .brand strong { font-size: 13px; }
  .brand span { font-size: 11px; }
  .hero { min-height: 76vh; }
  .hero-inner { padding-bottom: 46px; }
  .section { padding: 54px 16px; }
  .stat-band, .people { grid-template-columns: 1fr; }
  .card img { height: 190px; }
}