body{
    margin: 0;
    padding: 0;
    /*background: radial-gradient(circle, #878686, #ffffff);*/
    background: linear-gradient(to right, #adabab, #d7d6d4, #b7b7b7);
}

.header{
    width: 100%;
    height: 100px;
    margin: 0 auto;
}

#jpgh{
    width:100px;
    height:40px;
    font-size:35px;
    font-family: 'YuWei', sans-serif;
    margin: 10px 0 0 60px;
    color: #f40d0d;
}

#nav{
    position:relative;
    float: left;
    bottom: 15px;
    border:none;
    display: flex;
    list-style: none;
    box-shadow: 20px 40px 40px #00000033;
    width: 45%;
    height: 60px;
    border-radius: 10em;
    background:#ffffff;
}

#nav li a{
    position: relative;
    padding: 15px 53px;
    font: 500 18px "优设标题黑";
    border: none;
    color: #000000;
    display: inline-block;
    text-decoration: none;
    z-index: 3;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.slide1, .slide2{
    position: absolute;
    display: inline-block;
    height: 60px;
    border-radius: 10em;
    transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1.05);
}

.slide1{
    background-color: #f7bfbf;
    z-index: 2;
}

.slide2{
    opacity: 0;
    background-color: #e86861;
    z-index: 1;
    box-shadow: 0 0 20px #ffffff inset;
}

.sqeeze{
    transform: scale(0.9);
}

.square{
    width: 30px;
    height: 30px;
    box-shadow: 15px 15px 20px #00000033;
    background-color: rgb(255, 255, 255);
    display: inline-block;
    position: absolute;
}

.navi{
    width: 100%;
    height: 60px;
}