@charset "utf-8";

.imsi{
    height: 100vh;
}

/* nav */
/* @media screen and (max-width:860px) {
    .nav01{
    background: #fff;
    box-shadow: 0 0 4px 4px #00000015;
    }
    .logo01{
        display: block!important;;
    }
    .logo02{
        display: none!important;
    }
} */


.leftline{
    background-color: #ffffff5e;
}

.subtop{
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    background-position:  center center;
    width: 100%;
    height: 380px;
   
    position: relative;
}


.subtop_intro{
    background-image: url(../../img/sub/sub0.png);
}

.subtop_mem{
    background-image: url(../../img/sub/sub01.jpeg);
}

.subtop_work{
    background-image: url(../../img/sub/sub02.png);
}

.subtop_lab{
    background-image: url(../../img/sub/sub03.jpeg);
}

.subtop_coop{
    background-image: url(../../img/sub/sub04.jpeg);
}

.subtop_news{
    background-image: url(../../img/sub/sub05.jpeg);
}

.subtop_couns{
    background-image: url(../../img/sub/sub06.jpeg);
}



@media screen and (max-width:1280px) {
    .subtop{
        height: 300px;
    }
}

@media screen and (max-width:860px) {
    .subtop{
        height: 220px;
    }
}


.subtoptxt{
    position: absolute;
    left: 50%;
    /* top: 185px; */
    top: 50%;
    transform: translate(-50%,0);

    color: #fff;
}
.subtoptxt h2{
    font-size: 52px;
    font-weight: 700;
}
.subtopbg{
    width: 100%;
    height: 100%;;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    background-color: #000;
    opacity: .5;
}


@media screen and (max-width:1024px) {
    .subtoptxt h2{
        font-size: 40px;
    }
    .subtoptxt{
        top: 50%;
    }
}



@media screen and (max-width:860px) {
    .subtoptxt h2{
        font-size: 28px;
    }
}







/* Style the dropdown menu */

.sub-navbar {
    position: relative;
    z-index: 2;
    border-bottom: 1px solid #e7e7e7;
    height: 60px;
}

.sub-navbar ul {
    list-style-type: none;
    /* margin: 0; */
    height:60px;
    line-height: 60px;

}

.sub-navbar li {
    display: inline-block;
    vertical-align: middle;

}
.sub-navbar li a::after{
    content: '';
    display: block;
    clear: both;
    width:1px;
    height: 20px;
    background-color: #ccc;
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
}
.sub-navbar li:last-child a:after{
    display: none;
}
.sub-navbar li a {
    display: block;
    text-decoration: none;
    color: #000;
    width: 185px;
    padding:  0 10px;
    text-align: center;
    position: relative;
    font-size: 20px;
    font-weight: 500;
    float: left;
}

.sub-navbar li a p{
    float: left;
}

.nbh a{
    width: 30px!important;

}

.sub-navbar img{
    width: 20px;
    display: inline-block;
    vertical-align: middle;
    opacity: .8;
    margin-top: -4px;
}
.sub-navbar .arrow{

    transform: rotate(90deg);

    position: absolute;
    right: 10px;
    top: 58%;
    transform: translateY(-50%) rotate(90deg);;
    transition: .2s;
    z-index: 99;
}
.sub-navbar ul ul {
    position: absolute;
   /* top: 100%;*/
    top: 0%;
    display: none;
    border: 1px solid #333;
    border-top: none;
    height: auto;
    border-radius: 5px;
    overflow: hidden;
}

.sub-navbar ul ul li {
    display: block;
}

.sub-navbar li:hover ul {
    display: block;

}
.sub-navbar li a:hover .arrow{
    transform:translateY(-50%) rotate(-90deg);;

}
.sub-navbar ul ul li a {
    background-color: #fff;
}
/* Change the background color of dropdown links on hover */
.sub-navbar ul li a:hover {

}
.sub-navbar ul ul li a:hover {
    background-color: #F8F8F8;
}



@media screen and (max-width:860px) {
    
.sub-navbar {
    height: 50px;
}

.sub-navbar ul {
    height:50px;
    line-height: 50px;
}

.sub-navbar li a::after{
    height: 18px;
    top: 50%;
    transform: translateY(-50%);
}
.sub-navbar li{
    width: calc(( 100% / 2 ) - 20px);
    margin-right: 20px;
}
.sub-navbar li:last-child{
    margin-right: 0;
}
.sub-navbar li a {
    width:100% ;
    padding:  0 10px;
    font-size: 16px;
}
.nbh{
    display: none!important;
}
.nbh a{
    display: none!important;
}

.sub-navbar img{
    width: 20px;
    display: inline-block;
    vertical-align: middle;
    opacity: .8;
}

.sub-navbar .arrow{
    right: 5%;

}

.sub-navbar ul ul {
    position: absolute;
   /* top: 100%;*/
    top: 0%;
    display: none;
    border: 1px solid #333;
    border-top: none;
    height: auto;
    border-radius: 5px;
    overflow: hidden;
    width: calc(( 100% / 2 ) - 10px);
    margin-right: 0px;
}
.sub-navbar ul ul:last-child{
    margin-right: 0;
}
.sub-navbar ul ul li {
    display: block;
    width: 100%;
}

.sub-navbar li:hover ul {
    display: block;

}

.sub-navbar ul ul li a {
    background-color: #fff;
}

}