.m_con {
    display: none;
}
img {
    max-width: 100%;
    vertical-align: bottom;
}
* {
    box-sizing: border-box;
}
body {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}
html {
    font-family: 'Noto Sans KR', sans-serif;
}
a {
    text-decoration: none;
    color: #fff;
}
a:focus,
a:hover {
    color: #000;
}
.center {
    width: 1400px;
    margin: 0px auto;
}
.headroom {
    will-change: transform;
    transition: all 500ms linear;
    height: 70px;
    /* 높이지정 */
    background-color: #fff;
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100%;
    z-index: 100;
}
.headroom > div {
    align-items: center;
    justify-content: space-between;
    display: flex;
    height: 70px;
    padding: 0px 64px;
}
header.slideDown {
    transform: translateY(0%);
}
header.slideUp {
    transform: translateY(-70px);
    /* 헤더 숨길만큼의 높이 */
}
.navigation {
    height: 40px;
    background-color: rgba(66, 100, 123, 0.9);
}
.navigation > ul {
    display: flex;
    justify-content: center;
    height: 100%;
    align-items: center;
    text-align: center;
}
.navigation > ul > li {
    height: 100%;
}
.navigation > ul > li > a {
    font-size: 18px;
    font-weight: 500;
    width: 100%;
    padding: 0px 20px;
    line-height: 40px;
    display: inline-block;
    transition: all 0.2s;
}
.navigation > ul > li > a:hover {
    opacity: 0.7;
    font-size: 22px;
}
.headbanner > img:first-child {
    margin-right: 30px;
}
.headinfo > a {
    margin-left: 10px;
    transition: all 0.2s;
}
.headinfo > a:hover {
    opacity: 0.7;
}
.logo > a {
    transition: all 0.2s;
}
.logo > a:hover {
    opacity: 0.7;
}

/* main_banner */
.main_banner {
    text-align: center;
    color: #fff;
}
.main_banner > video {
    width: 100%;
    position: relative;
}
.main_banner > div > h3 {
    font-size: 35px;
    font-weight: 400;
}
.main_banner > div {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%);
    z-index: 1;
}
.main_banner > div > h2 {
    font-size: 60px;
    font-weight: 500;
    line-height: 90px;
    border-bottom: 1px solid #fff;
    border-top: 1px solid #fff;
    width: 1068px;
    display: inline-block;
    margin-top: 20px;
    margin-bottom: 50px;
}
.main_system {
    z-index: 1;
    position: relative;
}

.main_subbanner {
    text-align: center;
    padding-top: 50px;
    background-color: #1b1b1b;
    overflow: hidden;
}
#p3 {
    height: 39px;
    background-color: #1b1b1b;
}
#p4 {
    height: 39px;
    background-color: #1b1b1b;
}
.main_subbanner > img:first-child {
    margin-bottom: 35px;
}
.main_safe {
    position: relative;
}
.safe_con {
    position: absolute;
    right: 13%;
    top: 20%;
    animation: safe 5s infinite linear;
}
@keyframes safe {
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* main_bna */
.main_bna {
    padding-top: 70px;
    padding-bottom: 90px;
    background-color: #383c48;
}
.main_bna > div {
    background: url(../img/main_bna_bg.png) no-repeat center center #fff;
    background-size: cover;
    width: 1530px;
    padding-top: 75px;
    margin: 0px auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}
.bna_main_title {
    margin-top: 25px;
    margin-bottom: 48px;
}
.main_bna_swiper {
    width: 875px;
    overflow: hidden;
}
.main_bna_swiper .swiper-slide {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.bna_subtitle {
    margin-top: 45px;
    margin-bottom: 30px;
}
.bna_before > span {
    background-color: #666;
    font-weight: 600;
    font-size: 33px;
    color: #fff;
    text-align: center;
    display: block;
    line-height: 55px;
}
.bna_after > span {
    background-color: #242d45;
    font-weight: 600;
    font-size: 33px;
    color: #fff;
    text-align: center;
    display: block;
    line-height: 55px;
}
.bna_before > div:nth-last-child(2),
.bna_after > div:nth-last-child(2) {
    margin: 20px 0px;
}
.main_bna_swiper .swiper-slide > img {
    margin-top: 20px;
}
.bna_prev {
    width: 34px;
    height: 39px;
    background-image: url(../img/main_bna_prev.png);
    cursor: pointer;
    transition: all 0.2s;
}
.bna_prev:hover {
    opacity: 0.7;
}
.bna_next:hover {
    opacity: 0.7;
}
.bna_next {
    width: 34px;
    height: 39px;
    background-image: url(../img/main_bna_next.png);
    cursor: pointer;
    transition: all 0.2s;
}
.main_bna_btn {
    display: flex;
    width: 70%;
    justify-content: space-between;
    position: absolute;
    top: 35%;
    left: 50%;
    transform: translateX(-50%);
}
.video_wrap1,
.video_wrap2 {
    display: flex;
    width: 93%;
    justify-content: space-evenly;
}
.main_bna div > div > p {
    font-size: 21px;
    font-weight: 400;
    line-height: 55px;
    margin-bottom: 25px;
}
.main_video_sub {
    position: relative;
}
.main_video_sub > video {
    position: absolute;
    top: 16%;
    right: 13.5%;
    width: 650px;
}
.main_come {
    text-align: center;
    padding-top: 95px;
    padding-bottom: 100px;
}
.main_come > img {
    margin-bottom: 55px;
}
.come_wrap {
    display: flex;
}
.come_btn {
    display: flex;
    flex-direction: column;
}
.come_btn > a {
    transition: all 0.2s;
}
.come_btn > a:hover {
    transform: scale(1.03);
}
.ft {
    background-color: #173244;
    padding-bottom: 130px;
    text-align: center;
    color: #a2adb4;
}
.ft_menu {
    border-bottom: 1px solid #a2adb4;
}
.ft_menu > a {
    color: #a2adb4;
    font-size: 18px;
    font-weight: 300;
    line-height: 52px;
    padding: 0px 10px;
    transition: all 0.2s;
}
.ft_pr:hover {
    color: #fff;
}
.ft_pr {
    color: #a2adb4;
    font-size: 18px;
    font-weight: 300;
    line-height: 52px;
    padding: 0px 10px;
    transition: all 0.2s;
    cursor: pointer;
}
.ft_menu > a:hover {
    color: #fff;
}
.ft_logo > a {
    margin: 35px 0px;
    display: inline-block;
    transition: all 0.2s;
}
.ft_logo > a:hover {
    opacity: 0.8;
}
.ft_con > p {
    font-size: 16px;
    display: inline-block;
    line-height: 25px;
    margin: 0px 5px;
}
.ft_con > small {
    font-size: 12px;
    display: block;
    margin: 10px 0px;
}
.m_come_btn {
    display: none;
}
#p5 > div > div.come_wrap > a {
    display: flex;
}

/*tablet*/
@media screen and (max-width: 1850px) {
    .main_video_sub > video {
        width: 34%;
    }
}
@media screen and (max-width: 1550px) {
    .main_bna > div {
        width: initial;
    }
    .safe_con {
        right: 13%;
        width: 200px;
        top: 30%;
    }
}
@media screen and (max-width: 1450px) {
    .video_wrap1 > .video_con1 > iframe {
        width: 100%;
        height: auto;
    }
    .video_wrap1 > .video_con2 > iframe {
        width: 100%;
        height: auto;
    }
    .video_wrap1 > .video_con3 > iframe {
        width: 100%;
        height: auto;
    }
    .video_wrap2 > .video_con4 > iframe {
        width: 100%;
        height: auto;
    }
    .video_wrap2 > .video_con5 > iframe {
        width: 100%;
        height: auto;
    }
    .video_wrap2 > .video_con6 > iframe {
        width: 100%;
        height: auto;
    }
}
@media screen and (max-width: 1400px) {
    .center {
        width: 1000px;
    }
    .main_bna_btn {
        width: 80%;
        top: 40%;
    }
    .main_come > div {
        width: 100%;
    }
}
@media screen and (max-width: 1268px) {
    .headbanner {
        display: none;
    }
    .main_bna div > div > p {
        font-size: 20px;
    }
    .main_video_sub > video {
    }
}
@media screen and (max-width: 1130px) {
    .safe_con {
        width: 146px;
    }
    .main_banner > div > h2 {
        font-size: 35px;
        width: 799px;
    }
    .main_bna_btn {
        width: 93%;
    }
}
@media screen and (max-width: 1000px) {
    .main_bna_swiper {
        width: 630px;
    }
    .main_bna div > div > video {
        width: 250px;
    }
    .center {
        width: 767px;
    }
    .navigation > ul > li > a:hover {
        font-size: 18px;
    }
    .navigation > ul > li > a {
        font-size: 17px;
    }
    .main_bna_swiper .swiper-slide > img {
        margin: 20px 10px 0px;
    }
    .main_bna_btn {
        width: 80%;
        top: 15%;
    }
    .video_wrap1,
    .video_wrap2 {
        flex-direction: column;
        text-align: center;
    }
    .video_wrap1 > .video_con1 > iframe {
        width: 90%;
        height: 350px;
    }
    .video_wrap1 > .video_con2 > iframe {
        width: 90%;
        height: 350px;
    }
    .video_wrap1 > .video_con3 > iframe {
        width: 90%;
        height: 350px;
    }
    .video_wrap2 > .video_con4 > iframe {
        width: 90%;
        height: 350px;
    }
    .video_wrap2 > .video_con5 > iframe {
        width: 90%;
        height: 350px;
    }
    .video_wrap2 > .video_con6 > iframe {
        width: 90%;
        height: 350px;
    }
}
@media screen and (max-width: 876px) {
    .main_video_sub > video {
        width: 254px;
    }
    .main_bna_btn {
        width: 90%;
        top: 15%;
    }
}
@media screen and (max-width: 844px) {
    .headinfo > img {
        display: none;
    }
    .main_banner > div > h2 {
        font-size: 23px;
        width: 439px;
    }
    .navigation > ul > li > a:hover {
        font-size: 16px;
    }
    .navigation > ul > li > a {
        font-size: 14px;
    }
    .safe_con {
        width: 114px;
    }
    .bna_main_title {
        width: 500px;
    }
    .bna_before > span,
    .bna_after > span {
        font-size: 22px;
    }
    .main_bna div > div > p {
        font-size: 20px;
    }
}
@media screen and (max-width: 762px) {
    .center {
        width: 470px;
    }
    .main_bna div > div > video {
        width: 190px;
    }
    .main_bna div > div > p {
        line-height: 37px;
        margin-bottom: 10px;
    }
    .navigation {
        display: none;
    }
    .main_banner > div > h3 {
        font-size: 20px;
    }
    .main_bna_btn {
        top: 15.5%;
    }
}
@media screen and (max-width: 710px) {
    .main_bna_swiper {
        width: 510px;
    }
    .main_bna_swiper .swiper-slide > img {
        width: 2%;
    }
}
@media screen and (max-width: 704px) {
    .main_video_sub > video {
        width: 210px;
    }
}
@media screen and (max-width: 640px) {
    .headroom > div {
        padding: 0px 30px;
    }
    .logo > a > img {
        width: 75%;
    }
    .headinfo > a > img {
        width: 75%;
    }
    .main_bna_btn {
        width: 95%;
        top: 18%;
    }
    .video_wrap1 > .video_con1 > iframe {
        width: 100%;
        height: 280px;
    }
    .video_wrap1 > .video_con2 > iframe {
        width: 100%;
        height: 280px;
    }
    .video_wrap1 > .video_con3 > iframe {
        width: 100%;
        height: 280px;
    }
    .video_wrap2 > .video_con4 > iframe {
        width: 100%;
        height: 280px;
    }
    .video_wrap2 > .video_con5 > iframe {
        width: 100%;
        height: 280px;
    }
    .video_wrap2 > .video_con6 > iframe {
        width: 100%;
        height: 280px;
    }
}
@media screen and (max-width: 594px) {
    .main_bna_swiper {
        width: 380px;
    }

    .main_bna_btn {
        top: 16.5%;
        width: 85%;
    }
}
@media screen and (max-width: 586px) {
    .main_video_sub > video {
        width: 160px;
    }
}
@media screen and (max-width: 490px) {
    .come_btn {
        display: none;
    }
    .m_come_btn {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        margin-bottom: 10px;
    }
    .main_bna div > div > p {
        font-size: 18px;
    }
    .m_come_btn > a {
        width: 50%;
    }
    .main_banner {
        padding-top: 40px !important;
        padding-bottom: 0px !important;
        height: auto;
        background-image: none;
    }
    .main_bna {
        overflow: hidden;
    }
    .main_bna > div {
        padding-bottom: 90px;
        width: 92%;
    }
    .video_swiper {
        width: 100%;
    }
    .video_swiper .swiper-slide-active {
        transform: scale(1) !important;
        transition: all 0.5s;
        transform-origin: center center;
        color: #000 !important;
    }
    .video_swiper .swiper-slide {
        transform: scale(0.9);
        transition: all 0.5s;
        transform-origin: center center;
        text-align: center;
        color: transparent;
    }
    .headroom > div {
        padding: 0px 20px;
    }
    .logo > a > img {
        width: 85%;
        margin-bottom: 5px;
    }
    .headinfo > a > img {
        width: 90%;
    }

    .headroom > div {
        height: 45px;
    }
    header.slideUp {
        transform: translateY(-60px);
    }
    .headroom {
        height: 40px;
    }
    .headinfo {
        width: 170px;
    }
    .main_bna_swiper {
        width: 340px;
    }
    .video_wrap1,
    .video_wrap2 {
        flex-direction: column;
        text-align: center;
    }
    .main_bna div > div > video {
        width: 100%;
    }
    .center {
        width: 360px;
    }
    .ft_menu > a {
        font-size: 12px;
    }
    .ft_con > p {
        font-size: 13px;
    }
    .ft_con > small {
        font-size: 10px;
    }
    .main_banner > div > h2 {
        width: 300px;
    }
    .main_banner > div > h2 {
        font-size: 16px;
    }
    .main_banner > div > h3 {
        font-size: 16px;
    }
    .main_bna_swiper .swiper-slide > img {
        width: 7px;
        margin: 25px 6px 0px;
    }
    .bna_before > span,
    .bna_after > span {
        font-size: 14px;
        line-height: 25px;
        font-weight: 400;
    }
    .bna_main_title {
        width: 140%;
        max-width: 150%;
        margin-bottom: 25px;
        margin-top: 15px;
    }
    .main_bna_btn {
        top: 520px;
        width: 19%;
    }

    .bna_prev,
    .bna_next {
        width: 25px;
        background-size: contain;
        background-repeat: no-repeat;
        background-position: center;
    }
    .main_bna > div > img:nth-child(1) {
        width: 66%;
    }
    .bna_subtitle {
        width: 250px;
        margin-top: 80px;
    }
    .main_video_sub {
        overflow: hidden;
    }
    .main_video_sub > video {
        top: 370px;
        right: 4%;
        width: 92%;
    }
    .ft_pr {
        font-size: 12px;
    }
    .main_implant {
        overflow: hidden;
    }
    .main_come {
        padding-top: 31px;
        padding-bottom: 40px;
    }
    .come_wrap {
        display: flex;
        flex-direction: column;
    }
    .main_subbanner4 {
        overflow: hidden;
    }
    .main_navgation2 {
        overflow: hidden;
    }
    .safe_con {
        width: 54px;
    }
    .logo {
        width: 135px;
    }
    .headinfo {
        width: 130px;
    }
    .headinfo > a {
        margin-left: 0px;
    }
    .pc_con {
        display: none;
    }
    .m_con {
        display: block;
    }
    #map {
        display: none;
    }
    .main_come > img {
        width: 260px;
    }
    .come_btn {
        flex-direction: row;
    }
    .ft {
        padding-bottom: 160px;
    }
    .video_wrap1 > .video_con1 > iframe {
        width: 100%;
        height: 200px;
    }
    .video_wrap1 > .video_con2 > iframe {
        width: 100%;
        height: 200px;
    }
    .video_wrap1 > .video_con3 > iframe {
        width: 100%;
        height: 200px;
    }
    .video_wrap2 > .video_con4 > iframe {
        width: 100%;
        height: 200px;
    }
    .video_wrap2 > .video_con5 > iframe {
        width: 100%;
        height: 200px;
    }
    .video_wrap2 > .video_con6 > iframe {
        width: 100%;
        height: 200px;
    }
    .main_banner > div {
        top: 70px;
        transform: translateX(-50%) scale(0.8);
    }
}
@media screen and (max-width: 446px) {
    .main_video_sub > video {
        top: 340px;
    }
}
@media screen and (max-width: 410px) {
    .main_video_sub > video {
        top: 300px;
    }
}
@media screen and (max-width: 360px) {
    .main_video_sub > video {
        top: 265px;
    }
    .main_bna_swiper {
        width: 100%;
    }
}
@media screen and (max-width: 330px) {
    .center {
        width: 320px;
    }
    .ft_con > p {
        font-size: 11px;
    }
    .main_video_sub > video {
        top: 250px;
    }
    .main_bna > div {
        width: 92%;
    }
    .main_bna_btn {
        top: 465px;
    }
    .video_wrap1 > .video_con1 > iframe {
        width: 100%;
        height: 150px;
    }
    .video_wrap1 > .video_con2 > iframe {
        width: 100%;
        height: 150px;
    }
    .video_wrap1 > .video_con3 > iframe {
        width: 100%;
        height: 150px;
    }
    .video_wrap2 > .video_con4 > iframe {
        width: 100%;
        height: 150px;
    }
    .video_wrap2 > .video_con5 > iframe {
        width: 100%;
        height: 150px;
    }
    .video_wrap2 > .video_con6 > iframe {
        width: 100%;
        height: 150px;
    }
}