* {
  box-sizing: border-box;
}

:root {
  --primary: #234f7c;
  --primary-dark: #0b1f3a;
  --accent: #c49a3a;
  --text: #172033;
  --muted: #5f6875;
  --line: #e6e0d2;
  --bg: #f7f4ec;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(11, 31, 58, 0.14);
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.75;
}

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

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 0;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  flex: 0 0 auto;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--primary-dark);
}

.brand span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 4px;
}

.nav-links a {
  padding: 9px 12px;
  border-radius: 999px;
  font-size: 15px;
  color: #25324b;
  transition: 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-dark);
  background: rgba(196, 154, 58, 0.15);
}

.nav-links .nav-cta {
  color: var(--white);
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  box-shadow: 0 8px 20px rgba(11, 31, 58, 0.24);
}

.nav-links .nav-cta:hover {
  color: var(--white);
  background: linear-gradient(135deg, var(--accent), var(--primary-dark));
}

.hero {
  overflow: hidden;
  padding: 86px 0 90px;
  background:
    radial-gradient(circle at 82% 14%, rgba(196, 154, 58, 0.22), transparent 28%),
    linear-gradient(135deg, #f8f5ee 0%, #ffffff 55%, #edf2f6 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 42px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

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

.hero h1,
.page-hero h1 {
  margin-bottom: 24px;
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.14;
  color: #102347;
}

.hero-text,
.page-hero p:last-child,
.section-heading p {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions,
.stack-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 700;
  transition: 0.2s ease;
}

.btn.primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  box-shadow: 0 14px 28px rgba(11, 31, 58, 0.24);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(11, 31, 58, 0.3);
}

.btn.ghost {
  color: var(--primary-dark);
  border: 1px solid rgba(196, 154, 58, 0.42);
  background: rgba(255, 255, 255, 0.78);
}

.btn.light {
  color: var(--primary-dark);
  background: var(--white);
}

.hero-card {
  position: relative;
  padding: 34px;
  border-radius: 28px;
  color: var(--white);
  background: linear-gradient(145deg, var(--primary-dark), var(--primary));
  box-shadow: var(--shadow);
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: auto 28px -22px 28px;
  height: 44px;
  border-radius: 50%;
  background: rgba(11, 31, 58, 0.18);
  filter: blur(16px);
}

.hero-card h2 {
  font-size: 28px;
}

.hero-card ul,
.case-card ul {
  padding-left: 20px;
  margin-bottom: 0;
}

.hero-card li + li {
  margin-top: 10px;
}

.section {
  padding: 78px 0;
}

.section.alt {
  background: var(--bg);
}

.section-heading {
  margin-bottom: 32px;
  text-align: center;
}

.section-heading p {
  margin-left: auto;
  margin-right: auto;
}

.section h2 {
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.25;
  color: #102347;
}

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

.cards.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.case-card,
.contact-card,
.job-card,
.product-item {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--white);
  box-shadow: 0 12px 34px rgba(16, 35, 71, 0.06);
}

.card {
  padding: 28px;
}

.card h3,
.case-card h2,
.job-card h2,
.product-item h2,
.contact-card h2 {
  color: #102347;
}

.card p,
.case-card p,
.job-card p,
.product-item p,
.content-block p,
.contact-card p {
  color: var(--muted);
}

.icon {
  width: 52px;
  height: 52px;
  margin-bottom: 18px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  color: var(--white);
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-dark), var(--accent));
}

.split {
  display: grid;
  grid-template-columns: 1fr 420px;
  align-items: center;
  gap: 46px;
}

.text-link {
  color: var(--primary);
  font-weight: 700;
}

.stats {
  display: grid;
  gap: 18px;
}

.stats div {
  padding: 28px;
  border-radius: 22px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.stats strong {
  display: block;
  font-size: 38px;
  line-height: 1;
  color: var(--primary);
}

.stats span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 36px;
  border-radius: 26px;
  color: var(--white);
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.cta-panel h2,
.cta-panel p {
  color: var(--white);
  margin-bottom: 8px;
}

.page-hero {
  padding: 70px 0;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(11, 31, 58, 0.96), rgba(35, 79, 124, 0.9)),
    radial-gradient(circle at right top, rgba(196, 154, 58, 0.36), transparent 34%);
}

.page-hero h1,
.page-hero .eyebrow,
.page-hero p {
  color: var(--white);
}

.content-block {
  max-width: 920px;
}

.content-block p {
  font-size: 17px;
  text-indent: 2em;
}

.product-list,
.jobs {
  display: grid;
  gap: 18px;
}

.product-item {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 24px;
  padding: 26px;
  align-items: start;
}

.product-item span {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 18px;
  color: var(--white);
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), #f0c978);
}

.case-card {
  padding: 28px;
}

.case-card > span {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 4px 12px;
  border-radius: 999px;
  color: var(--primary-dark);
  background: rgba(196, 154, 58, 0.15);
  font-weight: 700;
}

.job-card {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px;
  align-items: center;
}

.job-card a {
  flex: 0 0 auto;
  color: var(--primary);
  font-weight: 700;
}

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

.contact-card {
  padding: 32px;
}

.contact-card a {
  color: var(--primary);
  font-weight: 700;
}

.contact-card.dark {
  color: var(--white);
  background: linear-gradient(145deg, var(--primary-dark), var(--primary));
}

.contact-card.dark h2,
.contact-card.dark p {
  color: var(--white);
}

.site-footer {
  color: rgba(255, 255, 255, 0.82);
  background: #07172f;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  padding: 44px 0;
}

.site-footer h3 {
  color: var(--white);
}

.site-footer p {
  margin-bottom: 8px;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.9);
}

.site-footer a:hover {
  color: var(--accent);
}

.copyright {
  padding: 16px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

@media (max-width: 980px) {
  .nav-inner,
  .topbar-inner,
  .cta-panel,
  .job-card {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .hero-grid,
  .split,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .cards.three,
  .cards.four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 24px, 1180px);
  }

  .hero,
  .section,
  .page-hero {
    padding: 52px 0;
  }

  .cards.three,
  .cards.four {
    grid-template-columns: 1fr;
  }

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

  .nav-links a {
    padding: 8px 10px;
    font-size: 14px;
  }

  .hero-card,
  .cta-panel,
  .contact-card {
    padding: 24px;
  }
}