.aidite-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 80px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 64px;
  border-bottom: 1px solid #eef2f7;
  background: rgba(255,255,255,0.98);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.03);
}

.aidite-logo {
  justify-self: start;
}

.aidite-logo img {
  display: block;
  height: 44px;
  width: auto;
}

.aidite-menu {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 48px;
  height: 100%;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
}

.aidite-menu a {
  color: #1f2937;
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms ease;
}

.aidite-menu a:hover,
.aidite-nav-item.have-right:hover > a {
  color: #0052a2;
}

.aidite-nav-item {
  position: relative;
  height: 80px;
  display: flex;
  align-items: center;
}

.aidite-dropdown.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 1001;
  min-width: 720px;
  display: none;
  gap: 24px;
  padding: 22px 24px;
  border: 1px solid #edf1f6;
  background: rgba(255,255,255,0.98);
  box-shadow: 0 18px 38px rgba(15, 23, 42, 0.1);
  backdrop-filter: blur(10px);
  transform: translateX(-50%);
}

.aidite-nav-item.have-right:hover .aidite-dropdown.mega-menu {
  display: flex;
}

.aidite-dropdown .dropdown-left {
  width: 190px;
  flex-shrink: 0;
  padding-right: 24px;
  border-right: 1px solid #edf1f6;
}

.aidite-dropdown .dropdown-right {
  min-width: 460px;
}

.aidite-dropdown .dropdown-category {
  padding: 11px 0;
  border-bottom: 1px solid #edf1f6;
  color: #475569;
  font-size: 14px;
  cursor: pointer;
}

.aidite-dropdown .dropdown-category:hover,
.aidite-dropdown .dropdown-category.active {
  color: #0052a2;
  font-weight: 600;
}

.aidite-dropdown .dropdown-content {
  display: none;
}

.aidite-dropdown .dropdown-content.active {
  display: block;
}

.aidite-dropdown .section-title {
  display: block;
  margin-bottom: 12px;
  color: #0f172a;
  font-size: 14px;
  font-weight: 600;
}

.aidite-dropdown .section-items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.aidite-dropdown .section-item {
  color: #64748b;
  font-size: 13px;
}

.aidite-dropdown .section-item:hover {
  color: #0052a2;
}

@media (max-width: 1100px) {
  .aidite-header {
    display: flex;
    height: 68px;
    padding: 0 20px;
  }

  .aidite-logo img {
    height: 38px;
  }

  .aidite-menu {
    display: none;
  }
}