#main_content{
    width: 100%;
}


/* section1 */
.section1{
    width: 100%;
}

.visual{
    width: 100%;
    height: 100vh;
    position: relative;
}

.slider1,
.v_0,
.v_1,
.v_2{
    width: 100%;
    height: 100vh;
    float: left;
    overflow: hidden;
}

.v_0 img,
.v_1 img,
.v_2 img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slider1 li.slick-active img{
    animation: img_zoom 6s ease-in-out forwards;
}

@keyframes img_zoom{    
    0%{
        transform: scale(1.3);
    }

    100%{
        transform: scale(1);
    }
}

.slide_txt{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

.slide_txt .center{
    height: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
}

.slide_txt p{
    overflow: hidden;
}

p.st1{
    margin-bottom: 12px;
    margin-left: 5px;
}

p.st1 span{
    font-size: 20px;
    color: #fff;
    font-family: 'Pretendard-Light', sans-serif;
    transform: translateY(30px);
    animation: txt_show 1s ease forwards;
}

p.st2 span{
    font-size: 70px;
    color: #fff;
    line-height: 85px;
    font-family: 'Pretendard-Regular', sans-serif;
    transform: translateY(250px);
    animation: txt_show 1s .5s ease forwards;
}

p.st2 span strong{
    font-weight: normal;
    font-family: 'Pretendard-Bold', sans-serif;
}

.slide_txt span{
    display: block;
}

@keyframes txt_show{
    100%{
        transform: translateY(0);
    }
}

.play_stop{
    width: max-content;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-600px, -50%);
    margin-top: 170px;
    margin-left: 90px;
    cursor: pointer;
}

.play{
    color: #fff;
    font-size: 20px;
    display: none;
}

.stop{
    color: #fff;
    font-size: 20px;
}


/* section2 */
.section2{
    width: 100%;
    padding: 95px 0;
}

.section2_inner{
    position: relative;
    left: 50%;
    transform: translateX(-600px);
}

.sec2_left{
    position: absolute;
    top: -10px;
    left: 0;
}

.sec2_left p{
    font-size: 20px;
    color: #111;
    line-height: 28px;
    font-family: 'Pretendard-Regular', sans-serif;
}

.sec2_left p span{
    font-size: 53px;
    line-height: normal;
    font-family: 'Pretendard-Bold', sans-serif;
    display: block;
    margin-bottom: 15px;   
}

.sec2_right ul{
    width: 1680px;
    padding-left: 600px;
    display: flex !important;
}

.sec2_right ul li{
    margin-right: 30px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.sec2_right ul li img{
    width: 100%;
    transition: transform .5s;
}

.sec2_right ul li:hover img{
    transform: scale(1.2);
}

.sec2_right ul li p{
    position: absolute;
    font-size: 16px;
    color: #fff;
    font-family: 'Pretendard-Light', sans-serif;
    left: 25px;
    bottom: 30px;
}

.sec2_right ul li p span{
    display: block;
    margin-bottom: 3px;
    font-size: 33px;
    font-family: 'Pretendard-Bold', sans-serif;
}


/* section3 */
.section3{
    width: 100%;
    padding: 100px 0;
    background-image: url(../images/main_project_bg.jpg);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.section3 p{
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    font-size: 43px;
    color: #fff;
    font-family: 'Pretendard-SemiBold', sans-serif;
}

.section3 p span{
    font-size: 22px;
    color: #6cc900;
    font-family: 'Pretendard-Medium', sans-serif;
    margin-bottom: 20px;
}

.section3 a{
    width: 190px;
    height: 45px;
    border: 1px solid #fff;
    box-sizing: border-box;
    border-radius: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: #fff;
    font-family: 'Pretendard-Light', sans-serif;
    margin: 30px auto 0;
    transition: background-color .5s;
}

.section3 a:hover{
    background-color: #6cc900;
    border: 0;
    color: #fff;
}