@charset "utf-8";


.main_slide {
    position: relative;
    overflow: hidden;
    max-width: 1920px;
    max-height: 600px;
    height: 100%;
    margin: 0 auto;
}
.main_slide .swiper-slide .txt_wrap {
    position: absolute;
    top: 50%;
    left: 50%;
    text-align: center;
    color: #fff;
    opacity: 0;
    transform: translate(-50%, -50%);
    transition: opacity 2.5s;
}
.main_slide .swiper-slide.swiper-slide-active .txt_wrap {
   
    opacity: 1;
}
.main_slide .txt_wrap p{
    font-size: 40px;
    font-weight: 700;
    font-family: 'montserrat';
    margin-bottom: 25px;
}
.main_slide .txt_wrap span {
    font-size: 18px;
}
.main_slide .btn_wrap div {
    width: 50px;
    height: 50px;
}
.main_slide .btn_wrap div:after {
    content: none;
}
.main_slide .btn_wrap .swiper-button-next {
    background: url(/img/common/btn_next.png) no-repeat center center;
    background-size: 100%;
}
.main_slide .btn_wrap .swiper-button-prev {
    background: url(/img/common/btn_prev.png) no-repeat center center;
    background-size: 100%;
}
.main_slide .swiper-pagination {
    bottom: 20px;
}
.main_slide .swiper-pagination span{
    width: 20px;
    height: 20px;
    border: 1px solid #fff;
    opacity: 0.8;
    vertical-align: top;
    border-radius: 20px;
    
    transition: all 0.3s;
}
.main_slide .swiper-pagination .swiper-pagination-bullet-active {
    background-color: #fff;
}

.contents {
    margin-top: 60px;
}
.contents .btn_wrap {
    font-size: 0;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    
}
.contents .btn_wrap button{
    display: inline-block;
    width: calc(100%/3);
    text-align: center;
    font-size: 20px;
    border: 1px solid #DDDDDD;
    border-right: 0;
    line-height: 78px;
    transition: all 0.3s;
}
.contents .btn_wrap button:last-child {
    border-right: 1px solid #ddd;
}
.contents .btn_wrap button.active {
    border-color: #77A3F7;
    box-shadow: 0 0 4px #77A3F7;
    color: #3B7EFF;
    font-weight: 700;
}
.contents .btn_wrap button.active + button {
    
    border-left: 1px solid #77A3F7;
}

/* youtube_content */
.youtube_content {
    margin: 90px 0 90px;
    padding: 60px 0 90px;
    background: url(/img/common/youtube_bg.png) no-repeat center center;
    background-size: 100% 700px;
}

.youtube_content ul {
    display: flex;
    justify-content: space-between;
}
.youtube_content ul li {
    width: 520px;
    height: 340px;
}
.youtube_content .title_wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0;
    margin-bottom: 30px;
}
.youtube_content .title_wrap .title{
    font-size: 26px;
}
.youtube_content .btn_more {
    font-size: 20px;
    color: #3B7EFF;
}
.youtube_content .btn_more:after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    margin-top: -2px;
    margin-left: 5px;
    vertical-align: middle;
    background: url(/img/common/btn_more.png) no-repeat left center;
    background-size: 10px auto;
    
}

.bottom_content .cont_wrap {
    font-size: 0;
}
.bottom_content .section{
    font-size: 0;
    display: flex;
    flex-wrap: wrap;
    /* justify-content: space-between; */
}
.bottom_content .section .thumb {
    margin-bottom: 30px;
}
.bottom_content .section a.thumb:nth-child(3n) {
    margin-right: 0;
}