/**************************************************************/
  /**************************************************************/
  /***************************** main ***************************/
  /**************************************************************/
  /**************************************************************/
  /* ----------------------- video visual ----------------------*/
  /* .main_copy {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    left: 50%;
    bottom: 5rem;
    transform: translate(-50%);
    text-align: center;
    z-index: 2;
    color: #fff;
}
.main_copy img {
    margin-bottom: 1.25rem;
}
.main_copy p {
    display: block;
    width: 100%;
    font-size: 1.75rem;
    font-family: var(--main-font);
    font-weight: 600;
    letter-spacing: 1px;
} */


/* 페이지별 헤더 색상 교체 */

/* #header.mainheader {border-bottom: 1px solid var(--c-black-5);}
#header.mainheader .logo a img.on {display: none;}
#header.mainheader .logo a img.off {display: block;}

#header.mainheader.on .top_header .wrap a { color: var(--c-black-1);}
#header.mainheader.on nav #gnb li .nav_dep1 {color: var(--c-black-1);}
#header.mainheader.on .open .join a {color: var(--c-black-3);}
#header.mainheader.on .open .login a {color: var(--c-black-3);}
#header.mainheader.on .open ul li a {color: var(--c-black-3);}

#header.mainheader.on .open ul li a .material-icons-round, #header.mainheader.on .open ul li a .material-icons-outlined {color: var(--c-black-3);} */


.fp-viewing-HOME #header.mainheader .menu_area ul li a.btn_ham_menu {background-image: url(../../images/common/ic_ham_menu.png);}
.fp-viewing-HOME #header.mainheader.on .menu_area ul li a.btn_ham_menu {background-image: url(../../images/common/ic_ham_menu_on.png);}
.fp-viewing-HOME #header.mainheader .menu_area ul li a.searchbtn {background-image: url(../../images/common/ic_search.png);}
.fp-viewing-HOME #header.mainheader nav #gnb li .nav_dep1 {color: #fff; text-shadow: 0px 0px 6px rgba(51, 51, 51, 0.6);}
.fp-viewing-HOME #header.mainheader nav #gnb li .nav_dep1 a {color: #fff; }
.fp-viewing-HOME #header .top_header .wrap a {color: #fff;}
.fp-viewing-HOME #header.mainheader.on nav #gnb li .nav_dep1 {color: var(--c-black-1);text-shadow: none;}
.fp-viewing-HOME #header.mainheader .top_header .wrap a {
    color: #fff;
}
.fp-viewing-HOME #header.mainheader.on .top_header .wrap a {
    color: var(--c-black-1);
}

.fp-viewing-INFORMATION #header .menu_area ul li a.btn_ham_menu {background-image: url(../../images/common/ic_ham_menu_on.png);}
.fp-viewing-INFORMATION #header.on .menu_area ul li a.btn_ham_menu {background-image: url(../../images/common/ic_ham_menu_on.png);}
.fp-viewing-INFORMATION #header .menu_area ul li a.searchbtn {background-image: url(../../images/common/ic_search_on.png);}
.fp-viewing-INFORMATION #header nav #gnb li .nav_dep1 {/* color: var(--c-black-1); */ color: #fff; text-shadow: none;}
.fp-viewing-INFORMATION #header nav #gnb li .nav_dep1 a {/* color: var(--c-black-1); */ color: #fff;}
.fp-viewing-INFORMATION #header .top_header .wrap a {/* color: var(--c-black-1); */ color: #fff;}
.fp-viewing-INFORMATION #header.on nav #gnb li .nav_dep1 {color: var(--c-black-1); text-shadow: none;}
.fp-viewing-INFORMATION #header .top_header .wrap a {
    /* color: var(--c-black-1); */
    color: #fff;
}
.fp-viewing-INFORMATION #header.on .top_header .wrap a {
    color: var(--c-black-1);
}

.fp-viewing-PROGRAM #header .menu_area ul li a.btn_ham_menu {background-image: url(../../images/common/ic_ham_menu_on.png);}
.fp-viewing-PROGRAM #header.on .menu_area ul li a.btn_ham_menu {background-image: url(../../images/common/ic_ham_menu_on.png);}
.fp-viewing-PROGRAM #header .menu_area ul li a.searchbtn {background-image: url(../../images/common/ic_search_on.png);}
.fp-viewing-PROGRAM #header nav #gnb li .nav_dep1 {color: var(--c-black-1); text-shadow: none;}
.fp-viewing-PROGRAM #header nav #gnb li .nav_dep1 a {color: var(--c-black-1); }
.fp-viewing-PROGRAM #header .top_header .wrap a {color: var(--c-black-1);}
.fp-viewing-PROGRAM #header.on nav #gnb li .nav_dep1 {color: var(--c-black-1);text-shadow: none;}
.fp-viewing-PROGRAM #header .top_header .wrap a {
    /* color: var(--c-black-1); */
    color: #fff;
}
.fp-viewing-PROGRAM #header.on .top_header .wrap a {
    color: var(--c-black-1);
}

.fp-viewing-INTRODUCTION #header .menu_area ul li a.btn_ham_menu {background-image: url(../../images/common/ic_ham_menu_on.png);}
.fp-viewing-INTRODUCTION #header.on .menu_area ul li a.btn_ham_menu {background-image: url(../../images/common/ic_ham_menu_on.png);}
.fp-viewing-INTRODUCTION #header .menu_area ul li a.searchbtn {background-image: url(../../images/common/ic_search_on.png);}
.fp-viewing-INTRODUCTION #header nav #gnb li .nav_dep1 {color: var(--c-black-1); text-shadow: none;}
.fp-viewing-INTRODUCTION #header nav #gnb li .nav_dep1 a {color: var(--c-black-1); }
.fp-viewing-INTRODUCTION #header .top_header .wrap a {color: var(--c-black-1);}
.fp-viewing-INTRODUCTION #header.on nav #gnb li .nav_dep1 {color: var(--c-black-1);text-shadow: none;}
.fp-viewing-INTRODUCTION #header .top_header .wrap a {
    color: var(--c-black-1);
}
.fp-viewing-INTRODUCTION #header.on .top_header .wrap a {
    color: var(--c-black-1);
}

.fp-viewing-FOOTER #header.mainheader {background: #fff;}
.fp-viewing-FOOTER #header.mainheader .menu_area ul li a.btn_ham_menu {background-image: url(../../images/common/ic_ham_menu_on.png);}
.fp-viewing-FOOTER #header nav #gnb li .nav_dep1 { color: var(--c-black-1); text-shadow: none;}
.fp-viewing-FOOTER #header .top_header .wrap a {
    color: var(--c-black-1);
}


/* ------------------- sec basic setting ---------------------*/

.section .inner {
    width: var(--web-width);
    margin: 0 auto;
}

.section .inner .sec_tit {
    /* width: 100%; */
}
.section .inner .sec_tit h3 {
    font-size: var(--txt-6xl);
    /* line-height: var(--txt-7xl); */
    font-weight: 500;
    color: var(--c-black-1);
    display: inline-block;
    font-family: var(--sub-font);
}
.section .inner .sec_tit h3 strong {
    font-family: var(--sub-font);
    font-weight: 700;
}
.section .inner .sec_tit p{
    font-size: var(--txt-2xl);
    line-height: var(--txt-3xl);
    color: var(--c-black-1);
    /* font-weight: 500; */
    font-family: var(--sub-font);
}
.section .inner .sec_tit h4 {
    font-size: var(--txt-4xl-1);
    font-weight: 600;
    color: var(--c-black-1);
}


/* -------------------------- sec1 ---------------------------*/
@keyframes scroll {
    0% {
        transform: translateY(0);
    }

    100% {
        transform: translateY(-20px);
    }
}
.sec1 {
    position: relative;
}
.sec1::before {
    content: "";
    display: block;
    width: 15px;
    height: 135px;
    background: url(/../images/main/scrollimg.png) no-repeat center center;
    position: absolute;
    right: 35px;
    top: 80%;
    background-size: cover;
    opacity: 1;
    z-index: 9999;
    animation: scroll .8s infinite alternate;
}

/* .sec1::after {
    content: "Scroll";
    position: absolute;
    left: 50%;
    bottom: 8em;
    font-size: 1rem;
    color: #fff;
    font-weight: 400;
    opacity: 1;
    z-index: 9999;
    margin-left: -0.5rem;
    letter-spacing: 0.5px;
} */
#main_full .section.active::before,
#main_full .section.active::after {
    opacity: 1;
    transition: .8s .6s
}

.section .inner .sec_tit_wrap {
    margin-bottom: 2.5rem;

}
.section .main_button {
    width: auto;
    height: 32px;
    line-height: 30px;
    padding: 0px 18px;
    border: 1px solid var(--c-black-2);
    border-radius: 16px;
    cursor: pointer;
    color: var(--c-black-2);
    font-family: var(--sub-font);
    font-size: var(--txt-md);
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: .5s
}
.section.sec_project .project_wrap .project .main_button:hover {
    border: 1px solid #ffffff00;
    color: #fff;
    background: var(--main-color);
}

/* -------------------------- sec_project ---------------------------*/

.section.sec_project {
    position: relative;
    background: url(/../images/main/project_bg.png?ver=1.1) no-repeat center/cover;
    z-index: 1;
}
.section.sec_project .inner {
    margin: 4rem auto 0;
}
.section.sec_project .inner .sec_tit h3 {
    color: #fff;
}
.section.sec_project .inner .sec_tit p{
    color: #fff;
}

.section.sec_project .project_wrap {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 3.125rem;
}

.section.sec_project .project_wrap .project {
    width: calc((100% - 3.125rem) /2);
    background: #fff;
    padding: 2.5rem 3rem 1.5rem;
    border-radius: var(--radius-all-sm);
    border: 1px solid rgba(255, 255, 255, 0.9);
}
.section.sec_project .project_wrap .project .tit {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}
.section.sec_project .project_wrap .project .tit h4 {
    font-size: var(--txt-3xl);
    font-weight: 400;
}

.section.sec_project .project_wrap .project .box_wrap .box {
    border-top: 1px dashed var(--c-black-5);
    padding: 1rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    cursor: pointer;
}
.section.sec_project .project_wrap .project .box_wrap .box:first-child {
    border-top: none;
}
.section.sec_project .project_wrap .project .box_wrap .box:first-child h5 {
    width: 100%;
}
.section.sec_project .project_wrap .project .box_wrap .box:first-child p {
    margin-bottom: 0.25rem;
}
.section.sec_project .project_wrap .project .box_wrap .box h5 {
    width: calc(100% - 100px);
    /* width: 100%; */
    font-size: var(--txt-lg);
    font-weight: 500;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    overflow: hidden;
    word-break: break-all;
}
.section.sec_project .project_wrap .project .box_wrap .box:hover h5 {
    color: var(--main-color);
}
.section.sec_project .project_wrap .project .box_wrap .box p {
    font-size: var(--txt-md);
    color: var(--c-black-3);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    overflow: hidden;
    word-break: break-all;
    margin-top: 0.5rem;
}
.section.sec_project .project_wrap .project .box_wrap .box p.date {
    width: 100px;
    text-align: right;
    margin-top: 0;
}
.section.sec_project .project_wrap .project .box_wrap .box:first-child p.date {
    /* text-align: left;
    margin-top: 0.5rem; */
}
.section.sec_project .banner_wrap {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 3.125rem;
    margin-top: 3.125rem;
}

.section.sec_project .banner_wrap .banner {
    width: calc((100% - 3.125rem) /2);
    /* background: rgba(146, 20, 56, 0.85); */
    background: #8e1d3f;
    padding: 0.75rem 1.5rem 0.75rem 3rem;
    border-radius: var(--radius-all-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0px 5px 10px 0px rgb(0 0 0 / 10%);
    cursor: pointer;
    transition: .5s
}
.section.sec_project .banner_wrap .banner:hover {
    /* background: rgba(146, 20, 56, 1.0); */
    opacity: 0.85;
}
.section.sec_project .banner_wrap .banner:nth-child(2) {
    /* background: rgba(98, 98, 98, 0.85); */
    background: #1c2f40;
}
.section.sec_project .banner_wrap .banner:nth-child(2):hover {
    /* background: rgba(98, 98, 98, 1.0); */
    opacity: 0.85;
}
.section.sec_project .banner_wrap .banner h4 {
    font-size: var(--txt-2xl);
    font-weight: 500;
    color: #fff;
}

/* -------------------------- sec_program ---------------------------*/

.section.sec_program {
    position: relative;
    background: url(/../images/main/program_bg.png?ver=1.1) no-repeat center/cover;
}
.section.sec_program .inner {
    margin: 6rem auto 0;
    position: relative;
}
.section.sec_program .program_wrap .sec_tit_wrap {
    width: calc(67% - 2rem);
    padding-top: 2rem;
}
.section.sec_program .program_wrap .box_wrap {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: stretch;
    gap: 2rem;
    width: 100%;
}
.section.sec_program .program_wrap .box {
    width: calc((100% - 6rem) /4);
    height: auto;
    background-repeat: no-repeat;
    background-position: 50% 63%;
    background-color: var(--sub-color-5);
    box-shadow: 0px 5px 10px 0px rgb(0 0 0 / 10%);
    transition: 0.5s;
    cursor: pointer;
    opacity: 0.7;
}

.section.sec_program .program_wrap .box.box01 {
    background-image: url(/../images/main/program_icon01.png);
}
.section.sec_program .program_wrap .box.box01.on {
    background-image: url(/../images/main/program_icon01_on.png);
}
.section.sec_program .program_wrap .box.box02 {
    background-image: url(/../images/main/program_icon02.png);
}
.section.sec_program .program_wrap .box.box02 {
    background-image: url(/../images/main/program_icon02_on.png);
}
.section.sec_program .program_wrap .box.box03 {
    background-image: url(/../images/main/program_icon03.png);
}
.section.sec_program .program_wrap .box.box03.on {
    background-image: url(/../images/main/program_icon03_on.png);
}
.section.sec_program .program_wrap .box.box04 {
    background-image: url(/../images/main/program_icon04.png);
    background-position: 50% 57%;
}
.section.sec_program .program_wrap .box.box04.on {
    background-image: url(/../images/main/program_icon04_on.png);
}
.section.sec_program .program_wrap .box h4 {
    font-size: var(--txt-3xl);
    font-weight: 500;
    color: #fff;
    opacity: 0.6;
}
.section.sec_program .program_wrap .box.on h4 {
    opacity: 1;
}
.section.sec_program .program_wrap .box p {
    font-size: var(--txt-lg-2);
    margin-top: 0.75rem;
    font-family: var(--sub-font);
    color: #fff;
    line-height: 1.3;
    opacity: 0.6;
}
.section.sec_program .program_wrap .box.on p {
    opacity: 1;
}

.section.sec_program .program_wrap .box.on {
    background-color: var(--main-color);
    opacity: 0.9;
}

.section.sec_program .program_wrap .box .con {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    height: 100%;
    min-height: 400px;
    padding: 2.5rem;
    text-align: center;
    z-index: 1;
}
.section.sec_program .program_wrap .box .main_button {
    width: fit-content;
    margin-top: auto;
    border: none;
    color: var(--sub-color-5);
    background: #fff;
    font-size: var(--txt-md-1);
    opacity: 0.6;
}
.section.sec_program .program_wrap .box.on .main_button {
    color: var(--main-color);
    opacity: 1;
}

/* -------------------------- sec_introduction ---------------------------*/

.section.sec_introduction {
    position: relative;
    background: url(/../images/main/introduction_bg.png?ver=1.1) no-repeat center/cover;
}
.section.sec_introduction .inner {
    margin: 7rem auto 0;
    position: relative;
}
.section.sec_introduction .sec_tit {
    text-align: center;
}
.section.sec_introduction .introduction {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: stretch;
    width: 100%;
    position: relative;
    z-index: 2;
}
.section.sec_introduction .introduction::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 56%;
    background: var(--main-color);
    border-radius: var(--radius-all-sm);
    z-index: -1;
}
.section.sec_introduction .video {
    width: 50%;
    border-radius: var(--radius-all-sm);
    padding: 0 0 3.5rem 3.5rem;
}
.video-container {
    width: 100%;
    max-width: 800px; /* 원하는 최대 크기 */
    aspect-ratio: 16 / 9; /* 가로:세로 비율 */
    margin: auto;
    border-radius: var(--radius-all-sm);
}

.video-container iframe {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-all-sm);
    border: 1px solid rgba(255, 255, 255, 0.9);
}
.section.sec_introduction .con {
    width: 50%;
   
}

.section.sec_introduction .introduction .con h4 {
    font-size: var(--txt-4xl);
    font-weight: 600;    
    margin-bottom: 1rem;
}
.section.sec_introduction .introduction .con h5 {
    font-size: var(--txt-2xl);
    font-weight: 600;   
    color: #fff; 
    text-align: center;
    margin-bottom: 1rem;
}
.section.sec_introduction .introduction .con p {
    font-size: var(--txt-lg);
    font-weight: 500;
    margin-top: 2px;
}
.section.sec_introduction .introduction .con .tit_wrap {
    padding: 2.75rem 3.5rem;
}
.section.sec_introduction .introduction .con .quick {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: stretch;
    width: 100%;
    padding: 3rem 0;
}
.section.sec_introduction .introduction .con .quick .box {
    width: 33.333%;
    text-align: center;
    cursor: pointer;
    transition: 0.5s;
}

.section.sec_introduction .introduction .con .quick .box:nth-child(2) {
    border-left: 1px solid #ffffff60;
    border-right: 1px solid #ffffff60;
}
.section.sec_introduction .inner .sec_tit h3 {
    font-size: var(--txt-4xl-1);
    line-height: var(--txt-5xl-1);
}
.section.sec_introduction .inner .sec_tit p {
    margin-top: 1rem;
}