.root: {}
:root {
  --navbar-height: 60px;
}
.navbar {
  background: white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
  min-height: var(--navbar-height);
}

.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 1002;
}

.logo {
  margin-right: 16px;
  text-decoration: none;
}

.logo-img {
  height: 28px;
  display: block;
}

.navbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-item {
  position: relative;
  padding: 8px 10px;
}

.nav-label {
  color: #333;
  cursor: pointer;
  font-weight: 700;
  display: inline-block;
  position: relative;
}

.nav-item:hover .dropdown,
.nav-item:hover .dropdown.mega {
  display: none;
}
.nav-item.open .dropdown {
  display: block;
}

.dropdown {
  display: none;
  position: absolute;
  top: 36px;
  left: 0;
  background: white;
  border: 1px solid #e8e8e8;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  border-radius: 6px;
  min-width: 160px;
  padding: 6px 0;
}

.dropdown-item {
  display: block;
  padding: 8px 12px;
  color: #333;
  text-decoration: none;
}

.dropdown-item:hover {
  background: #f5f5f5;
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-input {
  height: 36px;
  padding: 8px 12px;
  font-size: 14px;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
}

.user-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.username {
  color: #666;
}

.navbar-right .btn {
  height: 36px;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}
.dropdown.mega {
  display: none;
  padding: 28px;
  width: min(95vw, 1400px);
  border-radius: 10px;
  position: fixed;
  top: var(--navbar-height);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1001;
  gap: 20px;
  background: #fff;
  pointer-events: auto;
}
.nav-item.open .dropdown.mega {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-start;
}

.nav-item.selected .nav-label::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: #1890ff;
  border-radius: 2px;
}

.mega-col {
  width: 320px;
  padding: 0 16px;
}
.mega-col:first-child {
  position: sticky;
  left: 0;
}

.mega-col.mega-wide {
  flex: 1;
  min-width: 800px;
}

.mega-title {
  font-weight: 600;
  color: #333;
  margin-bottom: 12px;
  font-size: 15px;
}

.mega-products {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.mega-product {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mega-product img {
  width: 100%;
  height: 480px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  border: 1px solid #e8e8e8;
}

.mega-product-info .name {
  font-weight: 600;
  color: #333;
  font-size: 16px;
  text-align: center;
}

.mega-product-info .desc {
  color: #666;
  font-size: 13px;
  text-align: center;
}
.mega-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mega-item {
  padding: 12px 14px;
  border: 1px solid #e8e8e8;
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
  text-align: left;
  font-size: 14px;
}

.mega-item:hover {
  border-color: #1890ff;
}

.mega-item.active {
  background: #e6f7ff;
  border-color: #1890ff;
}