.warning {
    width: 750px;
    background-color: #fff;
    border-radius: 10px;
    color: #d72434;
    padding: 10px;
    margin: 0 auto;
    position: relative;
    top: 120px;
    opacity: 0.8;
    text-align: center;
}

.warning-icon {
    width: 20px;
    height: 20px;
    vertical-align: bottom;
}

.first{
    background-image: url("../../img/banner.png");
    background-repeat: no-repeat;
    background-size: cover;
    height: 16rem;
    position: relative;
}

.first .first-background{
    width: 100%;
    position: absolute;
    line-height: 85px;
    background-color: #151515;
    opacity: 0.8;
    z-index: 2;
}

.first-img{
    float: left;
    margin-left: 50px;
}

.banner1{
    width: 250px;
    height: 40px;
}


.nav{
    float: left;
    position: absolute;
    /* 导航栏偏移量 */
    left: 650px;
}

.nav li{
    height: 75px;
    float: left;
}

.nav li a{
    display: block;
    font-family: sans-serif;
    font-size: 0.25rem;
    color: white;
    height: 90%;
}

.nav li a:hover{
    border-bottom: #819FF7 0.1rem solid;
}
.nav li{
    /* 导航栏内边距 */
    padding: 0 40px;
}

.tel{
    position: absolute;
    right: 140px;
    
}
.telImg{
    overflow: hidden;
    float: left;
}

.telImg img{
    height: 55px;
    width: 50px;
}

.tel-phone{
    position: absolute;
    right: 0.9rem;
    line-height: 17px;
    top: 28%;
}

.tel-phone p{
    font-family: sans-serif;
    font-size: 0.2rem;
    color:white;
    transform: scale(0.9);
}

#telfont{
    margin-top: 5px;
}

.first .middle-img{
  width: 6.5rem;
  margin: 0 auto;
  padding-top: 250px;
}

.first .middle-img img{
    width: 6.5rem;
    height: 4rem;
}

.bottom-font{
    width: 200px;
    text-align: center;
    position: absolute;
    left: 50%;
    bottom: 30px;
    transform: translate(-50%,0);
}

.EXPLORER{
    color: white;
    font-size: 0.23rem;
}

.mouse{
    height: 0.8rem;
    width: 0.5rem;
    margin-top: 10px;
}