header{
    position: absolute;
    background-color: inherit;
    width:100%;
    box-shadow: none;
    transition: .5s;
}
header:hover{
    background-color: white;
}
/*
nav:hover>h1>a>img{
	background-image:url(../img/logoImg/kosmogen-logo.png); !important;
	background-repeat: no-repeat; !important;
}*/

nav:hover>ul>li>a{
    color:rgba(0,0,0,0.3);
}
nav:hover>ul>li>select{
    border:2px solid black;
    color:black;
}
nav>ul>li>a:hover{
    color:black;
}
nav>ul>li>a{
    color: white;
    transition: .5s;
    position: relative;
}
nav>ul>li>select{
    border:2px solid white;
    color:white;
}
.article1{
    width:100%;
    min-width: 1366px;
    height: 700px;
    background: url("../img/indexImg/mainImg.jpg");
    background-size: cover;
    position: relative;
}
.article1Content{
    min-width:1366px;
    color: white;
    position: absolute;
    left:50%;
    transform: translateX(-50%);
    bottom:20%;
    font-size: 45px;
}
.article1Content>a{
    bottom:-115%;
    color:white;
    font-size: 30px;
    display: inline-block;
    padding:20px 110px 150px 25px;
    font-size: 20px;
    position: absolute;
    background-color: black;
}
.article2,
.article3{
    width:1366px;
    margin:150px auto;
    margin-bottom: 50px;
    overflow: hidden;
}
.article2Content{
    width:47%;
    margin-right: 6%;
    float:left;
}
.article2Content:last-of-type{
    margin-right: 0;
}
.article2Content>h2{
    font-weight: 300px;
    font-size: 20px;
    line-height: 40px;
    margin-bottom: 10px;
    border-bottom: 1px solid rgba(0,0,0,0.2);
}
.article2Content>h3{
    font-size: 20px;
    margin-top:20px;
    line-height: 50px;
}
.article2Content>ul>li>a{
    line-height: 25px;
    display: inline-block;
    color:gray
}
.article2Content>ul>li>span{
    line-height: 25px;
    color:gray;
    float:right;
}
.article3{
    width:1366px;
    margin-top: 50px;
}
.article3>h2{
    font-weight: 300;
    font-size: 20px;
    line-height: 40px;
    margin-bottom: 30px;
    border-bottom: 1px solid rgba(0,0,0,0.2);
}
.article3Content{
    width:28%;
    height: 380px;
	margin-left:1.6%;
    margin-right: 3.5%;
    float:left;
    box-sizing: border-box;
}
.article3Content:last-of-type{
    margin-right: 0;
}
.article3Content>a>img{
    width:100%;
    height: 230px;
    box-sizing: border-box;
    border:1px solid rgba(0,0,0,0.1);
}
.article3Content sup{
    font-size: 12px;
}
.article3Content h3{
    text-align: left;
    color:black;
    font-size: 20px;
    line-height: 55px;
}
.article3Content p{
    text-align: left;
    color:gray;
    word-break: break-all;
    line-height: 20px;
}
.article3>h2>a{
    float:right;
}
.article3>a{
    background-color: black;
    color:white;
    width:100%;
    height: 50px;
    line-height: 50px;
    text-align: center;
    float:left;
    box-sizing: border-box;
    transition: 0.3s;
    position: relative;
}
.article3>a:hover{
    background-color: gray;
    color:white;
    border:none;
}