/* 基础样式 */
.menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    background-color: #333;
    border-radius: 10px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.menu li {
    position: relative;

}

.menu li a {
    display: block;
    padding: 15px 20px;
    color: white;
    text-decoration: none;
    /* background-color: #333; */
}

.menu li a:hover {
    background-color: #555;
    border-radius: 10px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* 隐藏下拉菜单 */
.submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #444;
    list-style: none;
    padding: 0;
    margin: 0;
    min-width: 150px;
}

.submenu li a {
    padding: 10px 20px;
}

/* 当鼠标悬停时，显示下拉菜单 */
.dropdown:hover .submenu {
    display: block;
}

/* 下拉菜单项的悬停样式 */
.submenu li a:hover {
    background-color: #666;
}