* {
    /* 取消全局边框 */
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
}

div.nav {
    /* 导航栏 */
    height: 4rem;
    width: 100%;
    position: fixed;
    background-color: #ffffff;
    box-shadow: 0px 5px 10px #bababa;
    z-index: 10;
}

.navList li {
    /* 导航栏内容 */
    float: left;
    height: 4rem;
    width: 8rem;
    line-height: 4rem;
    text-align: center;
}

.navList a{
    /* 超链接文本设置 */
    color: #000000;
    display: block;
    font-size: 1.2rem;
    font-family:system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue',sans-serif;
    transition: 0.3s;
}

.navList a:hover{
    /* 超链接文本鼠标悬浮动画 */
    background: #66CCFF;
    color: #ffffff;
}

.navList img {
    /* 导航栏左侧图标 */
    float: left;
    margin: 0.5rem;
    height: 3rem;
    width: auto;
    margin-left: 2rem;
    margin-right: 2rem;
}

img.banner{
    /* banner图 */
    width: 100%;
    position: relative;
}

.bottomInfo{
    /* 底部信息栏 */
    background: #333333;
    position: relative;
    width: 100%;
    height: 10rem;
}

.bottomInfo p{
    /* 信息栏文本设置 */
    position: inherit;
    color: #ffffff;
    font-size: 1.2rem;
    width: 100%;
    height: 1.5rem;
    margin: 0.5rem;
    text-align: center;
}

.bottomLeft{
    position: inherit;
    width: 30%;
    float: left;
}

.bottomMiddle{
    position: inherit;
    width: 40%;
    float: left;
}

.bottomRight{
    position: inherit;
    width: 30%;
    float: left;
}

.bottomRight a{
    color: #66CCFF;
    transition: 0.3s;
}

.bottomRight a:hover{
    color: #ffffff;
}