:root {
  --primary-color: #8B4513;
  --primary-light: #D2B48C;
  --primary-dark: #654321;
  --accent-color: #D4A574;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(to bottom, rgba(0, 77, 64, 1), rgba(0, 121, 107, 0.3));
  font-family: 'Microsoft YaHei', Arial, sans-serif;
  font-size: 16px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  padding: 0;
  transition: top 0.4s ease-in-out;
}

.navbar-hidden {
  top: -150px;
}

.navbar .navbar-container {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 40px;
  height: 100px;
}

.navbar .logo img {
  max-height: 100px;
  width: auto;
  transition: transform 0.3s ease;
}

.navbar .logo:hover img {
  transform: scale(1.05);
}

.navbar .logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: 10px;
}

.navbar .logo-text {
  display: flex;
  flex-direction: column;
}

.navbar .logo-text-cn {
  font-size: 20px;
  font-weight: bold;
  color: white;
  line-height: 1.2;
}

.navbar .logo-text-en {
  font-size: 12px;
  color: white;
  line-height: 1.2;
}

.navbar .nav-left {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
}

.navbar .nav-center {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 1;
  justify-content: center;
}

.navbar .nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
}

.navbar .nav-menu {
  display: flex;
  list-style: none;
  gap: 24px;
  margin: 0;
  padding: 0;
  align-items: center;
}

.navbar .search-container {
  position: relative;
}

.navbar .search-container input {
  padding: 8px 30px 8px 15px;
  border-radius: 20px;
  border: 1px solid #ccc;
  background-color: rgba(255, 255, 255, 0.8);
}

.navbar .navbar-search-suggestions {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  width: 320px;
  max-width: 56vw;
  max-height: 320px;
  overflow: auto;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
  z-index: 1200;
}

.navbar .navbar-search-suggestions.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.navbar .navbar-suggest-item {
  padding: 10px 12px;
  cursor: pointer;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.navbar .navbar-suggest-item:last-child {
  border-bottom: 0;
}

.navbar .navbar-suggest-item:hover,
.navbar .navbar-suggest-item:focus {
  outline: none;
  background: rgba(0, 121, 107, 0.10);
}

.navbar .navbar-suggest-title {
  font-size: 14px;
  font-weight: 600;
  color: #1f2937;
  line-height: 1.35;
}

.navbar .navbar-suggest-desc {
  margin-top: 2px;
  font-size: 12px;
  color: rgba(31, 41, 55, 0.72);
  line-height: 1.35;
}

.navbar .search-container .fa-search {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: #555;
  cursor: pointer;
}

.navbar .nav-menu li a {
  text-decoration: none;
  color: white;
  font-weight: 400;
  transition: color 0.3s;
  font-size: 16px !important;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.4);
}

.navbar .nav-menu li a:hover,
.navbar .nav-menu li a.active {
  color: #D4A574;
}

.navbar .nav-item-with-dropdown {
  position: relative;
}

.navbar .nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: rgba(0, 77, 64, 0.95);
  list-style: none;
  padding: 12px 0;
  margin: 0;
  border-radius: 8px;
  min-width: 140px;
  width: max-content;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1001;
  margin-top: 8px;
}

.navbar .nav-item-with-dropdown:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.navbar .nav-dropdown li {
  padding: 0;
}

.navbar .nav-dropdown li a {
  display: block;
  padding: 12px 20px;
  color: white;
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  transition: all 0.2s ease;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
  white-space: nowrap;
}

.navbar .nav-dropdown li a:hover {
  background-color: rgba(212, 165, 116, 0.2);
  color: var(--accent-color);
  padding-left: 28px;
}

.navbar .user-center {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-color);
  color: white;
  padding: 8px 18px;
  border-radius: 20px;
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.3s;
  font-size: 16px;
  flex-shrink: 0;
}

.navbar .user-center:hover {
  background-color: var(--primary-dark);
}

#nav-center-link,
#nav-logout-link {
  display: none;
}

@media (max-width: 768px) {
  .navbar .navbar-container {
    flex-wrap: wrap;
    gap: 10px;
  }

  .navbar .nav-menu {
    gap: 15px;
    font-size: 12px;
  }
}