* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    font-family: "微软雅黑", "Arial", Verdana, Arial, Helvetica, sans-serif;
}

/* 底部菜单样式 */
.menu {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background-color: white;
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0px 2px 8px #ccc;
}

.menu div {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #999;
    font-size: 13px;
}

.menu div img {
    width: 24px;
    height: 24px;
}

/* 选中菜单样式 */
.menu div.selected {
    color: #f7752d;
}