/* 页面主内容容器样式 */
.main-content,.menu-user {
    /* transition: opacity 0.3s ease; */
    background: var(--color-background-secondary);
    transition: backdrop-filter 2s ease !important;
    padding: 60px 20px 20px;
    margin: 12px;
    height: 100%;
    overflow-y: auto;
    backdrop-filter: blur(var(--blur-background));
    -webkit-backdrop-filter: blur(var(--blur-background));
    transition: backdrop-filter 2s ease;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-default);
    border: var(--border-light);
}