:root {
  --mg-header-blue: #062b9a;
  --mg-header-ink: #071742;
  --mg-header-paper: #fffdf7;
  --mg-header-line: #dce3f4;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  width: 100%;
  height: auto;
  min-height: 94px;
  padding: 12px max(32px, calc((100vw - 1320px) / 2));
  display: flex;
  align-items: center;
  gap: 28px;
  border-bottom: 1px solid var(--mg-header-line);
  background: rgba(255, 253, 247, .98);
  backdrop-filter: blur(12px);
  font-family: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.site-header .brand {
  display: block;
  flex: 0 0 auto;
}

.site-header .brand img {
  width: 200px;
  height: auto;
  display: block;
}

.site-header .menu-button {
  display: none !important;
}

.site-header .nav {
  position: static;
  width: auto;
  margin-left: auto;
  padding: 0;
  display: flex !important;
  align-items: center;
  gap: clamp(15px, 1.3vw, 22px);
  border: 0;
  background: transparent;
  box-shadow: none;
}

.site-header .nav a {
  padding: 0;
  color: var(--mg-header-ink);
  font-size: 16px;
  font-weight: 800;
  line-height: 1.25;
  text-decoration: none;
  white-space: nowrap;
}

.site-header .nav a:hover,
.site-header .nav a:focus-visible {
  color: var(--mg-header-blue);
}

.site-header .header-cta {
  min-height: 56px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 8px;
  background: var(--mg-header-blue);
  color: #fff;
  font-size: 16px;
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.site-header .language-toggle {
  width: 46px;
  height: 38px;
  padding: 0;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  border: 2px solid var(--mg-header-blue);
  border-radius: 8px;
  background: transparent;
  color: var(--mg-header-blue);
  font: 800 13px/1 "Inter", Arial, sans-serif;
  letter-spacing: .04em;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, transform .2s ease;
}

.site-header .language-toggle:hover,
.site-header .language-toggle:focus-visible {
  background: var(--mg-header-yellow, #ffd21c);
  transform: translateY(-1px);
}

html[lang="en"] .site-header .nav a {
  font-size: 14px;
  letter-spacing: -.01em;
}

@media (min-width: 768px) and (max-width: 1100px) {
  .site-header {
    min-height: 68px;
    padding: 8px 20px;
    gap: 6px;
  }

  .site-header .brand img {
    width: clamp(108px, 13vw, 132px);
  }

  .site-header .nav {
    gap: clamp(3px, .65vw, 7px);
  }

  .site-header .nav a {
    font-size: clamp(9px, 1.18vw, 12px);
  }

  html[lang="en"] .site-header .nav a {
    font-size: clamp(8px, 1.05vw, 11px);
  }

  .site-header .language-toggle {
    width: 34px;
    height: 32px;
    border-width: 1.5px;
    font-size: 10px;
  }

  .site-header .header-cta {
    min-height: 40px;
    padding-inline: 12px;
    font-size: 12px;
  }
}

@media (max-width: 767px) {
  .site-header {
    min-height: 72px;
    padding: 9px 18px;
    gap: 10px;
  }

  .site-header .brand img {
    width: 138px;
  }

  .site-header .menu-button {
    width: 44px;
    height: 44px;
    margin-left: 0;
    padding: 0;
    display: inline-grid !important;
    place-content: center;
    gap: 5px;
    border: 1px solid var(--mg-header-line);
    border-radius: 10px;
    background: #fff;
    color: var(--mg-header-blue);
    cursor: pointer;
  }

  .site-header .menu-button span {
    width: 20px;
    height: 2px;
    display: block;
    border-radius: 999px;
    background: currentColor;
  }

  .site-header .nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 18px;
    left: 18px;
    width: auto;
    margin: 0;
    padding: 14px;
    display: none !important;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px;
    border: 1px solid var(--mg-header-line);
    border-radius: 12px;
    background: rgba(255, 253, 247, .99);
    box-shadow: 0 18px 42px rgba(7, 23, 66, .16);
  }

  .site-header .nav.open {
    display: grid !important;
  }

  .site-header .nav a {
    min-height: 42px;
    padding: 10px;
    display: flex;
    align-items: center;
    border-radius: 7px;
    font-size: 14px;
    white-space: normal;
  }

  .site-header .nav a:hover,
  .site-header .nav a:focus-visible {
    background: #f3f6ff;
  }

  .site-header .header-cta {
    display: none;
  }

  .site-header .language-toggle {
    width: 44px;
    height: 38px;
    margin-left: auto;
    font-size: 12px;
  }

  html[lang="en"] .site-header .nav a {
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header .language-toggle { transition: none; }
}