* {
    margin: 0;
    padding: 0;
    /* c3盒子模型 */
    box-sizing: border-box;
}
body {
    margin: 0 auto;
    font-size: 14px;
    color: #000;
    position: relative;
}
::-webkit-scrollbar{
    display: none;
}
.clearfix:after{/*伪元素是行内元素 正常浏览器清除浮动方法*/
    content: "";
    display: block;
    height: 0;
    clear:both;
    visibility: hidden;
}
.clearfix{
    *zoom: 1;/*ie6清除浮动的方式 *号只有IE6-IE7执行，其他浏览器不执行*/
}
img{
    border: none;
}
a {
    cursor: pointer;
    color: #000;
    text-decoration: none;
    outline: none;
}
ul {
    list-style-type: none;
}
/* 去除列表前面的点 */
li {
    list-style: none;
}
.nav li:nth-child(3) a{
    color: bisque;
}
em { 
    font-style: normal;
}
/* 导航条 */
header {
    background-color: #000;
    height: 50px;
}
.nav {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
}
.nav li {
    float: left;
    padding-left: 50px;
    padding-right: 50px;
}

.nav li a {
    color: white;
    font-size: 25px;
    line-height: 50px;
}
/* 鼠标经过变色 */
.nav li a:hover {
    color: bisque;
}
.banner {
    margin: 0 auto;
    width: 99vw;
    height: 650px;
}
.banner img {
    width: 100%;
    height: 100%;
}
.title h2 {
    text-align: center;
}

.juese li {
    float: left;
    padding: 10px 10px;
    width: 50%;
}


main{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    min-height: 40vh;
    background-image: linear-gradient(to bottom right, #546fff, #8be1fd);
}

.container{
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.container .card-Hero{
    position: relative;
    width: 600px;
    height: 350px;
    margin: 20px;
    display: flex;
    transition: 0.5s;
    justify-content: flex-start;
    align-items: center;
    background: linear-gradient(89deg, #000, #064c67);
    border-radius: 15px;
}
.container .card-Hero img{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    height: 250px;
    transition: 0.5s;
}
.container .card-Hero:hover img{
    left: 73%;
    height: 300px;
}
.container .card-Hero .content-Hero{
    position: relative;
    width: 50%;
    left: 20%;
    padding: 20px 20px 20px 40px;
    opacity: 0;
    visibility: hidden;
    transition: 0.5s;
}
.container .card-Hero:hover .content-Hero{
    left: 0;
    opacity: 1;
    visibility: visible;
}
.container .card-Hero .content-Hero h2{
    color: #fff;
    text-transform: uppercase;
    font-size: 30px;
    line-height: 1.2em;
}
.container .card-Hero .content-Hero p{
    color: #fff;
    margin: 6px 0 5px 0;
}
.container .card-Hero .content-Hero a{
    position: relative;
    color: #111;
    background: #fff;
    display: inline-block;
    padding: 10px 20px;
    margin-top: 10px;
    text-decoration: none;
    font-weight: 700;
    border-radius: 5px;
}









footer {
    float: right;
    padding-right: 20px;
}