/* 布局相关样式 */
.app-layout {
  display: flex;
  min-height: 100vh;
  width: 100%;
  background-color: #f2f3f5;
}
/* 主内容区域 */
.main-content {
  flex: 1;
  overflow: hidden;
  transition: margin-left 0.3s ease;
  display: flex;
  flex-direction: column;
}