5);
}
.menu-item:hover {
cursor: pointer;
background-color: rgb(224, 224, 224);
}
.menu-first-items {
height: 0;
overflow: hidden;
transition: height 0.3s ease-out; /* 从上到下展开 */
}
.open-close-circle {
position: fixed;
bottom: 20px;
right: 20px;
width: 50px;
height: 50px;
background-color: red;
color: white;
border-radius: 50%;
display: flex;
justify-content: center;
align-items: center;
font-size: 1rem;
font-weight: bolder;
cursor: pointer;
z-index: 10000;
transition: transform 0.2s linear 0.1s;
}
.open-close-circle:hover {
background-color: rgb(200, 0, 0);
}
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