/* 销迹通官网统一主导航。全站只保留这一套品牌、排版、菜单顺序与响应式规则。 */
:root {
  --xjt-nav-ink: #0f172a;
  --xjt-nav-muted: #475569;
  --xjt-nav-blue: #2563eb;
  --xjt-nav-blue-hover: #1d4ed8;
  --xjt-nav-active: #edf3ff;
  --xjt-nav-line: #e2e8f0;
  --xjt-nav-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

body > .site-nav {
  position: sticky !important;
  top: 0 !important;
  z-index: 1000 !important;
  display: flex !important;
  align-items: center !important;
  width: 100% !important;
  max-width: none !important;
  height: 68px !important;
  min-height: 68px !important;
  margin: 0 !important;
  padding: 0 clamp(1.5rem, 4vw, 4.5rem) !important;
  border: 0 !important;
  border-bottom: 1px solid var(--xjt-nav-line) !important;
  border-radius: 0 !important;
  background: rgba(255, 255, 255, .96) !important;
  box-shadow: none !important;
  backdrop-filter: blur(16px) saturate(150%) !important;
  font-family: var(--xjt-nav-font) !important;
}

body > .site-nav > .brand {
  display: flex !important;
  flex: 0 0 auto !important;
  align-items: center !important;
  /* The logo image includes its own whitespace, keeping a visible gap. */
  gap: 0 !important;
  min-width: 230px !important;
  color: var(--xjt-nav-ink) !important;
  text-decoration: none !important;
}

body > .site-nav .brand-logo {
  display: block !important;
  width: 38px !important;
  height: 38px !important;
  padding: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  object-fit: contain !important;
}

body > .site-nav .brand-text {
  display: flex !important;
  flex-direction: column !important;
  line-height: 1.12 !important;
}

body > .site-nav .brand-text strong {
  color: var(--xjt-nav-ink) !important;
  font-size: .9375rem !important;
  font-weight: 750 !important;
  letter-spacing: -.02em !important;
}

body > .site-nav .brand-text small {
  display: block !important;
  margin-top: .18rem !important;
  color: #64748b !important;
  font-size: .6875rem !important;
  font-weight: 560 !important;
  letter-spacing: .01em !important;
}

body > .site-nav > .nav-links {
  display: flex !important;
  flex: 1 !important;
  align-items: center !important;
  justify-content: flex-end !important;
  gap: 0 !important;
}

body > .site-nav .nav-menu {
  position: absolute !important;
  left: 50% !important;
  display: flex !important;
  align-items: center !important;
  gap: .3rem !important;
  transform: translateX(-50%) !important;
  white-space: nowrap !important;
}

body > .site-nav .nav-menu > a {
  display: inline-flex !important;
  min-height: 40px !important;
  align-items: center !important;
  padding: .55rem .9rem !important;
  border: 0 !important;
  border-radius: 12px !important;
  background: transparent !important;
  box-shadow: none !important;
  color: var(--xjt-nav-muted) !important;
  font-family: var(--xjt-nav-font) !important;
  font-size: .92rem !important;
  font-weight: 620 !important;
  line-height: 1 !important;
  text-decoration: none !important;
  transition: color .18s ease, background .18s ease !important;
}

body > .site-nav .nav-menu > a:hover {
  color: var(--xjt-nav-blue) !important;
  background: #f3f7ff !important;
}

body > .site-nav .nav-menu > a.is-active,
body > .site-nav .nav-menu > a.active,
body > .site-nav .nav-menu > a[aria-current="page"] {
  color: var(--xjt-nav-blue) !important;
  background: var(--xjt-nav-active) !important;
  font-weight: 720 !important;
}

body > .site-nav .nav-phone {
  display: inline-flex !important;
  width: auto !important;
  min-height: 44px !important;
  align-items: center !important;
  justify-content: center !important;
  margin: 0 !important;
  padding: .7rem 1.35rem !important;
  border: 0 !important;
  border-radius: 12px !important;
  background: var(--xjt-nav-blue) !important;
  box-shadow: 0 8px 22px -12px rgba(37, 99, 235, .72) !important;
  color: #fff !important;
  font-family: var(--xjt-nav-font) !important;
  font-size: .9rem !important;
  font-weight: 720 !important;
  line-height: 1 !important;
  text-decoration: none !important;
  white-space: nowrap !important;
  cursor: pointer !important;
  transition: background .18s ease, transform .18s ease !important;
}

body > .site-nav .nav-phone:hover { background: var(--xjt-nav-blue-hover) !important; }
body > .site-nav .nav-phone:active { transform: translateY(1px) !important; }

body > .site-nav > .nav-toggle {
  display: none !important;
  flex-direction: column !important;
  gap: 4px !important;
  margin-left: auto !important;
  padding: .55rem !important;
  border: 0 !important;
  background: transparent !important;
  cursor: pointer !important;
}

body > .site-nav > .nav-toggle span {
  display: block !important;
  width: 22px !important;
  height: 2px !important;
  border-radius: 2px !important;
  background: var(--xjt-nav-ink) !important;
}

@media (max-width: 980px) {
  body > .site-nav {
    height: 64px !important;
    padding-inline: 1rem !important;
  }

  body > .site-nav > .brand { min-width: 0 !important; }
  body > .site-nav .brand-logo { width: 36px !important; height: 36px !important; }
  body > .site-nav .brand-text strong { font-size: 1rem !important; }
  body > .site-nav .brand-text small { font-size: .66rem !important; }
  body > .site-nav > .nav-toggle { display: flex !important; }

  body > .site-nav > .nav-links {
    position: absolute !important;
    top: 100% !important;
    right: 0 !important;
    left: 0 !important;
    display: none !important;
    padding: .7rem 1rem 1rem !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: .55rem !important;
    border-bottom: 1px solid var(--xjt-nav-line) !important;
    background: rgba(255, 255, 255, .98) !important;
    box-shadow: 0 18px 34px -24px rgba(15, 23, 42, .42) !important;
  }

  body > .site-nav > .nav-links.is-open { display: flex !important; }

  body > .site-nav .nav-menu {
    position: static !important;
    display: flex !important;
    width: 100% !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: .15rem !important;
    transform: none !important;
  }

  body > .site-nav .nav-menu > a {
    width: 100% !important;
    min-height: 44px !important;
    justify-content: flex-start !important;
    padding-inline: .85rem !important;
  }

  body > .site-nav .nav-phone { width: 100% !important; }
}

@media (prefers-reduced-motion: reduce) {
  body > .site-nav .nav-menu > a,
  body > .site-nav .nav-phone { transition: none !important; }
}