*{
    margin: 0;
    padding: 0;
}
.nav{
    position: fixed;
    background-color: rgba(0, 0, 0, 0.5);
    width: 100%;
    height: 70px;
    font-size: 18px;
    z-index: 200;
}
.nav-menu{
    float: right;
}
.nav-nav{
    float: left;
}
.nav-nav li{
    float: left;
    width: 160px;
    height: 70px;
    line-height: 70px;
    text-align: center;
}
.nav-nav li a{
    display: inline-block;

}
.nav-nav li a div{
    width: 110px;
    height: 20px;
    overflow: hidden;
}
.nav-nav-item span{
    display: block;
    height: 24px;
    line-height: 24px;
}
.nav-nav-item span:first-child{
    color: #fff;
}
.nav-nav-item span:last-child{
    color: #3755D3;
    font-size: 20px;
    font-weight: 600;
}
.nav-nav-item{
    transition: all 0.5s ease;
    -moz-transition: all 0.5s ease; /* Firefox 4 */
    -webkit-transition: all 0.5s ease; /* Safari and Chrome */
    -o-transition: all 0.5s ease; /* Opera */
}
.nav-nav li:hover .nav-nav-item{
    margin-top: -24px;
}
.nav-nav li:nth-child(3) .nav-nav-item{
    margin-top: -24px;
}
.dropdown{
    display: none;
    background-color: rgba(0, 0, 0, 0.5);
    min-width: 180px;
}
.dropdown a{
    width: 180px;
    color: #fff;
    font-size: 16px;
}
.dropdown a:hover{
    background-color: rgba(255, 255, 255, 0.5);
    color: #3755D3;
    font-weight: 600;
}
.drop:hover .dropdown{
    display: block;
}
#iptv{
    position: absolute;
    width: 100%;
    height: 100vh;
    background:url(../img/product/background.jpg) center top /cover;
}
.iptvPart{
    width: 80%;
    margin-top: 15vh;
    margin-left: 10%;
}
.iptvPart1{
    height: 40vh;
}
.iptv-header{
    position:absolute;
    width: 30%;
    height: 5vh;
    background-color: rgba(55, 85, 211, 1);
    border-radius: 5px;
    z-index: 2;
    align-items: center;
    display: flex;
}
.iptv-header img{
    width:12%;
}
.iptv-header h1{
    font-size: 1vw;
    margin-left: 10px;
    color: #fff;
}
.text{
    font-weight: 200;
}
.iptvPart2{
    height: 50vh;
}
.iptvPart3{
    height: 40vh;
}
.iptv-content{
    position:absolute;
    width: 74%;
    margin-top: 30px;
    margin-left: 3%;
    background-color: rgba(255, 255, 255,1);
    border-radius: 10px;
    box-shadow: 10px 10px 5px -4px rgba(114, 113, 119, 0.3);
    z-index: 1;
    align-items: center;
    display: flex;
    
}
.iptv-content1{
    height: 30vh;
}
.iptv-left{
    position:absolute;
    width: 60%;
}
.iptv-left a{
    display: block;
    margin-top: 1vh;
    margin-left: 10%;
    font-size: 1vw;
    color: #000;
}
.iptv-left a:hover{
    color: #3755D3;
}
.iptv-right{
    width: 30%;
    height: 25vh;
    margin-left: 65%;
    align-items: center;
    display: flex;
}
.iptv-right img{
    width: 100%;
    height: 25vh;
}
.iptv-content2{
    height: 40vh;
}
.iptv-content3{
    height: 30vh;
}