.app-header {
  background: #fff;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 1px 4px rgba(0, 21, 41, 0.08);
  height: 64px;
  border-bottom: 1px solid #f0f0f0;
}

/* 左侧区域 */
.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Logo 区域 */
.header-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 168px;
  transition: width 0.2s;
}

.logo-small {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  transition: all 0.2s;
}

.logo-full {
  height: 32px;
  width: auto;
  transition: all 0.2s;
}

.trigger {
  font-size: 18px;
  cursor: pointer;
  transition: color 0.3s;
  padding: 8px;
  border-radius: 4px;
  color: rgba(0, 0, 0, 0.65);
  display: flex;
  align-items: center;
}

.trigger:hover {
  color: #1677ff;
  background: rgba(22, 119, 255, 0.08);
}

/* 右侧区域 */
.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-search {
  border-radius: 16px;
}

.header-actions {
  display: flex;
  align-items: center;
}

.header-icon {
  font-size: 16px;
  color: rgba(0, 0, 0, 0.65);
  cursor: pointer;
  transition: all 0.3s;
  padding: 8px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-icon:hover {
  color: #1677ff;
  background: rgba(22, 119, 255, 0.08);
}

.header-link {
  font-size: 14px;
  color: rgba(0, 0, 0, 0.65);
  cursor: pointer;
  transition: all 0.3s;
  padding: 6px 12px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.header-link:hover {
  color: #1677ff;
  background: rgba(22, 119, 255, 0.08);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.3s;
}

.user-info:hover {
  background: rgba(22, 119, 255, 0.08);
}

.username {
  font-size: 14px;
  color: rgba(0, 0, 0, 0.88);
  font-weight: 500;
}

.ml-1 {
  margin-left: 4px;
}