* {
    margin: 0;
    padding: 0;
}

ul,
li {
    list-style: none;
}

a {
    text-decoration: none;
    color: white;
}

img {
    display: block;
}

section {
    height: 100vh;
}

section > img {
    height: 100vh;
}

#se_b {
    height: 100vh;
}

#mask {
    height: 100vh;
}

#mask_r {
    height: 100vh;
}

#mask_r > img {
    height: 100vh;
}


/*초기화 완료*/

section {
    position: relative;
}

.se_b {
    width: 100%;
    height: 100vh;
    position: absolute;
    top: 0;
    left: 0;
}
/*section end*/

#se_btn {
    width: 80px;
    height: 323px;
    top: 40vh;
    right: 0;
    position: fixed;
    z-index: 100;
}

#se_btn > li {
    width: 80x;
    height: 62px;
    margin-bottom: 1px;
    transition-duration: 0.5s;
    background-color: rgba(0, 0, 0, 0.3);
    text-align: center;
    padding-top: 18px;
    color: white;
    line-height: 17px;
    cursor: pointer;
}

#se_btn > li:last-child {
    margin-bottom: 0;
}

#se_btn > .on {
    background-color: rgba(255, 47, 47, 0.8);
}

/*end*/

#se1_title {
    position: absolute;
    left: 365px;
    top: 420px;
}

#logo {
    position: absolute;
    top: 70px;
    left: 260px;
}

#menu {
    width: 1370px;
    height: 75px;
    background-color: rgba(0, 0, 0, 0.3);
    position: absolute;
    right: 0;
    top: 55px;
}

#menu > ul {
    width: 936px;
    height: 75px;
    padding: 0 262px 0 172px;
}

#menu > ul > li {
    width: 156px;
    height: 75px;
    float: left;
    color: white;
    font-weight: 500;
    text-align: center;
    line-height: 75px;
    cursor: pointer;
}

#menu > ul > li:hover {
    color: rgb(203, 203, 203);
}

#menu > ul > li > a:hover {
    color: rgb(203, 203, 203);
}

#menu_1 > ul {
    width: 156px;
    height: 50px;
    display: none;
}

#menu_1:hover>ul{
    display: block;
}

#menu_1 > ul > li {
    width: 78px;
    height: 30px;
    float: left;
    line-height: 30px;
}

#menu_1 > ul > li>a:hover {
    width: 78px;
    height: 30px;
    float: left;
    line-height: 30px;
    color: rgb(203, 203, 203);
}

#menu_2{
    position: relative;
}

#menu_2 > ul {
    width: 300px;
    height: 50px;
    top: 75px;
    left: -75px;
    position: absolute;
    display: none;
}

#menu_2:hover>ul{
    display: block;
}

#menu_2 > ul > li {
    width: 100px;
    height: 30px;
    float: left;
    line-height: 30px;
}

#menu_2 > ul > li>a:hover {
    width: 100px;
    height: 30px;
    float: left;
    line-height: 30px;
    color: rgb(203, 203, 203);
}
/*menu end*/

#btn {
    width: 170px;
    height: 30px;
    position: absolute;
    left: 50%;
    margin-left: -85px;
    bottom: 85px;
    z-index: 10;
}

#number{
    font-family: 'Noto Sans KR', sans-serif;
}

#center{
    width: 53px;
    height: 30px;
    margin: 0 auto;
    color: #a3a3a3;
    position: relative;
}


#count{
    width: 9px;
    height: 24px;
    position: absolute;
    
}

#count>li{
    position: absolute;
    float: left;
    width: 9px;
    display: none;
    line-height: 29px;
    font-family: 'Noto Sans KR', sans-serif;
}

#count > .on {
    display: block;
}

#left {
    float: left;
}

#right {
    float: right;
}

#mask {
    position: relative;
}

#mask_r {
    position: absolute;
}

#mask_r > img {
    float: left;
}

#se1_title{
    width: 769px;
    height: 62px;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -384.5px;
    opacity: 0.25;
}

/*se1_end*/
#footer_in {
    width: 1200px;
    height: 118px;
    margin: 0 auto;
    padding: 35px 0 0;
}

#footer_in > p {
    width: 60%;
    color: #919191;
    font-size: 14px;
    line-height: 30px;
    float: left;
}

#footer_in > p > span {
    color: white;
}

#footer_in > a {
    width: 20%;
    font-size: 13px;
    line-height: 30px;
    float: right;
    text-align: right;
    margin-top: 50px;
    color: white;
}