:root {
  --navy: #0d1b2a;
  --blue: #1b3a57;
  --gold: #c99a45;
  --cream: #f7f4ee;
  --muted: #6d7480;
  --white: #ffffff;
  --line: #e7e1d7;
  --shadow: 0 20px 50px rgba(13, 27, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--navy);
  background: var(--white);
  line-height: 1.6;
}

body.lang-zh .en,
body.lang-en .zh {
  display: none !important;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--navy);
  text-decoration: none;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--navy);
  color: var(--gold);
  font-weight: 800;
  font-size: 22px;
}

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

.brand small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-links a {
  color: var(--navy);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.lang-toggle,
.menu-toggle {
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--navy);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 700;
  cursor: pointer;
}

.menu-toggle {
  display: none;
  border-radius: 10px;
  font-size: 20px;
}

body.lang-zh button[data-lang="zh"],
body.lang-en button[data-lang="en"] {
  background: var(--navy);
  color: var(--white);
}

.hero {
  padding: 96px 0;
  background:
    radial-gradient(circle at 20% 10%, rgba(201, 154, 69, 0.18), transparent 32%),
    linear-gradient(135deg, #fff 0%, var(--cream) 100%);
}

.hero-grid,
.split {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 13px;
  font-weight: 800;
}

h1, h2, h3 {
  line-height: 1.18;
  margin: 0 0 16px;
}

h1 {
  font-size: clamp(36px, 5vw, 62px);
  max-width: 850px;
}

h2 {
  font-size: clamp(28px, 3vw, 40px);
}

h3 {
  font-size: 20px;
}

.hero-text,
.section-heading p,
.split p {
  color: var(--muted);
  font-size: 17px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--navy);
  color: var(--white);
  box-shadow: var(--shadow);
}

.button.secondary {
  background: var(--white);
  color: var(--navy);
  border-color: var(--line);
}

.button.light {
  background: var(--white);
  color: var(--navy);
}

.button.full {
  width: 100%;
}

.hero-card,
.info-panel,
.card,
.contact-card,
.cta-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 32px;
}

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

.hero-card li {
  margin: 12px 0;
}

.trust-strip {
  background: var(--navy);
  color: var(--white);
  padding: 26px 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  text-align: center;
}

.number {
  display: block;
  color: var(--gold);
  font-size: 28px;
  font-weight: 900;
  margin-bottom: 4px;
}

.trust-grid p {
  margin: 0;
  opacity: 0.86;
}

.section {
  padding: 86px 0;
}

.section-muted {
  background: var(--cream);
}

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

.cards,
.steps {
  display: grid;
  gap: 20px;
}

.services-grid {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  padding: 26px;
  box-shadow: none;
}

.card p,
.step p,
.footer-disclaimer p {
  color: var(--muted);
}

.info-panel {
  padding: 30px;
}

dl {
  margin: 0;
}

dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

dd {
  margin: 5px 0 18px;
  font-size: 18px;
  font-weight: 700;
}

.steps {
  grid-template-columns: repeat(4, 1fr);
}

.step {
  padding: 24px 0;
  border-top: 2px solid var(--line);
}

.step span {
  display: inline-block;
  color: var(--gold);
  font-weight: 900;
  margin-bottom: 14px;
}

.cta-section {
  background: var(--navy);
  padding: 54px 0;
}

.cta-card {
  background: linear-gradient(135deg, var(--blue), var(--navy));
  color: var(--white);
  padding: 34px;
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: center;
  border-color: rgba(255,255,255,0.12);
}

.cta-card p {
  color: rgba(255,255,255,0.78);
  margin: 0;
}

.contact-section {
  background: var(--white);
}

.contact-list {
  margin-top: 28px;
  padding: 22px;
  border-radius: 20px;
  background: var(--cream);
}

.contact-card {
  padding: 30px;
}

.contact-card h3 {
  margin-top: 0;
}

.contact-list a {
  color: var(--navy);
  font-weight: 800;
  text-decoration: none;
}

.contact-list a:hover {
  text-decoration: underline;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.contact-note {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 0;
}

.site-footer {
  background: #07111d;
  color: var(--white);
  padding: 44px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 40px;
}

.site-footer p {
  margin: 8px 0 0;
  color: rgba(255,255,255,0.72);
}

.footer-disclaimer p {
  font-size: 13px;
  color: rgba(255,255,255,0.64);
}

.copyright {
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 32px;
  padding-top: 20px;
  text-align: center;
  color: rgba(255,255,255,0.52);
  font-size: 13px;
}

@media (max-width: 980px) {
  .hero-grid,
  .split,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .services-grid,
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    left: 14px;
    right: 14px;
    top: 74px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 18px;
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
  }

  .nav-links.open {
    display: flex;
  }

  .hero {
    padding: 62px 0;
  }

  .section {
    padding: 62px 0;
  }

  .services-grid,
  .steps,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .cta-card {
    flex-direction: column;
    align-items: flex-start;
  }
}