/* 增强面包屑导航样式 */
.enhanced-breadcrumb-wrap {
  /* background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%); */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 8px 0;
  margin-bottom: 0;
  /* box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05); */
  position: sticky;
  top: 0;
  z-index: 999;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.98);
  /* border-bottom: 1px solid rgba(0, 0, 0, 0.05); */
  margin-top: 0;
}

.enhanced-breadcrumb-wrap .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.enhanced-breadcrumb {
  display: flex;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
  gap: 8px;
  line-height: 1.8;
  width: 100%;
}

/* 桌面端：前3级尽量在一行显示 */
@media (min-width: 768px) {
  /* 前3级（首页+3级分类，共4个item + 3个separator = 7个元素）尽量不换行 */
  .enhanced-breadcrumb-item:nth-child(-n+7),
  .breadcrumb-separator:nth-child(-n+6) {
    flex-shrink: 0;
  }
  
  /* 超过3级时允许换行 */
  .enhanced-breadcrumb-item:nth-child(n+8),
  .breadcrumb-separator:nth-child(n+7) {
    flex-shrink: 1;
    min-width: 0;
  }
  
  /* 如果超过3级，允许2行或多行显示 */
  .enhanced-breadcrumb {
    max-width: 100%;
  }
  
  /* 超过3级时，允许换行显示 */
  .enhanced-breadcrumb.has-many-levels {
    flex-wrap: wrap;
  }
}

/* 移动端：前2级尽量在一行，超过2级换行 */
@media (max-width: 767px) {
  /* 前2级（首页+2级分类，共3个item + 2个separator = 5个元素）尽量不换行 */
  .enhanced-breadcrumb-item:nth-child(-n+5),
  .breadcrumb-separator:nth-child(-n+4) {
    flex-shrink: 0;
  }
  
  /* 超过2级时允许换行 */
  .enhanced-breadcrumb-item:nth-child(n+6),
  .breadcrumb-separator:nth-child(n+5) {
    flex-shrink: 1;
    min-width: 0;
  }
}

.enhanced-breadcrumb-item {
  display: flex;
  align-items: center;
  font-size: 14px;
  line-height: 1.5;
}

.enhanced-breadcrumb-item:not(.active) {
  transition: all 0.3s ease;
}

.breadcrumb-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: #495057;
  padding: 4px 10px;
  border-radius: 4px;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  position: relative;
}

.breadcrumb-link:hover {
  color: #007bff;
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 123, 255, 0.2);
}

.breadcrumb-current {
  display: flex;
  align-items: center;
  color: #212529;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.enhanced-breadcrumb-item.active .breadcrumb-current {
  color: #ff0066;
}

.breadcrumb-icon {
  margin-right: 6px;
  font-size: 16px;
  opacity: 0.8;
}

.breadcrumb-link:hover .breadcrumb-icon,
.breadcrumb-current .breadcrumb-icon {
  opacity: 1;
}

.breadcrumb-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

/* 超过3级时，允许文本截断和换行 */
.enhanced-breadcrumb.has-many-levels .breadcrumb-text {
  max-width: 150px;
}

@media (max-width: 991px) {
  .enhanced-breadcrumb.has-many-levels .breadcrumb-text {
    max-width: 120px;
  }
}

.breadcrumb-separator {
  display: flex;
  align-items: center;
  color: #6c757d;
  font-size: 12px;
  padding: 0 4px;
  opacity: 0.6;
  position: relative;
  transition: opacity 0.3s ease;
}

.breadcrumb-separator[data-has-siblings="true"] {
  cursor: pointer;
}

.breadcrumb-separator[data-has-siblings="true"]:hover {
  opacity: 1;
}

.breadcrumb-separator i {
  font-size: 14px;
}

/* 下拉菜单样式 */
.breadcrumb-separator {
  position: relative;
}

.breadcrumb-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  margin-top: 2px;
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  min-width: 200px;
  max-width: 300px;
  max-height: 200px;
  overflow-y: auto;
  z-index: 1001;
  display: none;
  padding: 4px 0;
}

.breadcrumb-dropdown.show {
  display: block;
}

.breadcrumb-dropdown-item {
  display: block;
  padding: 8px 16px;
  color: #495057;
  text-decoration: none;
  transition: background-color 0.2s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.breadcrumb-dropdown-item:hover {
  background-color: #f8f9fa;
  color: #007bff;
}

.breadcrumb-dropdown-item:first-child {
  border-top-left-radius: 6px;
  border-top-right-radius: 6px;
}

.breadcrumb-dropdown-item:last-child {
  border-bottom-left-radius: 6px;
  border-bottom-right-radius: 6px;
}

/* 下拉菜单滚动条样式 */
.breadcrumb-dropdown::-webkit-scrollbar {
  width: 6px;
}

.breadcrumb-dropdown::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 3px;
}

.breadcrumb-dropdown::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 3px;
}

.breadcrumb-dropdown::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* 筛选按钮样式 */
.breadcrumb-filter-btn {
  margin-left: auto;
}

.breadcrumb-filter-btn .btn {
  border-radius: 6px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.breadcrumb-filter-btn .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 123, 255, 0.2);
}

/* 响应式设计 */
@media (max-width: 767px) {
  .enhanced-breadcrumb-wrap {
    padding: 6px 0;
    margin-bottom: 0;
  }

  .enhanced-breadcrumb-wrap .container {
    flex-direction: column;
    align-items: flex-start;
  }

  .enhanced-breadcrumb {
    width: 100%;
    margin-bottom: 10px;
    gap: 4px;
  }

  .breadcrumb-text {
    max-width: 100px;
    font-size: 12px;
  }

  .breadcrumb-link,
  .breadcrumb-current {
    padding: 3px 6px;
    font-size: 12px;
  }
  
  .breadcrumb-dropdown {
    min-width: 150px;
    max-width: 200px;
    max-height: 200px;
  }

  .breadcrumb-icon {
    font-size: 14px;
    margin-right: 4px;
  }

  .breadcrumb-separator {
    padding: 0 2px;
  }

  .breadcrumb-filter-btn {
    width: 100%;
    margin-left: 0;
  }

  .breadcrumb-filter-btn .btn {
    width: 100%;
    justify-content: center;
  }
}

/* 深色模式支持（可选） */
@media (prefers-color-scheme: dark) {
  .enhanced-breadcrumb-wrap {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  }

  .breadcrumb-link {
    color: #e9ecef;
    background: rgba(255, 255, 255, 0.1);
  }

  .breadcrumb-link:hover {
    color: #4dabf7;
    background: rgba(255, 255, 255, 0.2);
  }

  .breadcrumb-current {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.15);
  }

  .breadcrumb-separator {
    color: #adb5bd;
  }
}