.content {
    position: relative;
    animation-name: contentani;
    animation-duration: 1s;
}

@keyframes contentani { 
    from {opacity:0 } 
    to{ opacity:1 }
}

.visual{
    width: 100%;
    height: 100vh;
    background-color: skyblue;
    position: relative;
}
.visual::after{
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url(../img/contactme_bg.png);
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}

.visual .center_box{
    width: 1400px;
    position: sticky;
    top: 180px;
    margin: 0 auto;
}
.visual .center_box > .outline{
    font-size: 120px;
    font-weight: bold;
    color: #dbf81f;
    font-family: 'CookieRun-Regular';
    text-shadow: -1px 0 #000, 0 1px #000, 1px 0 #000, 0 -1px #000;
}
.visual .center_box > .outline .fill{
    position: absolute;
    color: #fff;
    top: -4px;
    left: -5px;
}

/* 섹션 심플 */
.section.simple{
    height: 100px;
    margin-top: 80px;
    opacity: 0;
}
.section.simple .center_box{
    width: 1400px;
    margin: 0 auto;
}
.section.simple h2{
    font-size: 40px;
    text-align: center;
    font-family: 'KOTRA_BOLD-Bold';
}
.section.simple p{
    font-size: 20px;
    text-align: center;
    margin-top: 20px;
}

/* 섹션 컨텐트 */
.section.contact{
    margin: 120px 0 150px;
    opacity: 0;
}
.section.contact .center_box{
    width: 800px;
    height: 600px;
    margin: 0 auto;
    position: relative;
}
.section.contact fieldset{
    border: none;
    width: 100%;
    height: 100px;
    margin-bottom: 30px;
}
.section.contact label{
    font-size: 30px;
    opacity: 1;
    float: left;
    text-align: right;
    margin-right: 10px;
    font-family: 'NEXON Lv1 Gothic OTF';
    font-weight: 600;
}
.section.contact input{
    width: 100%;
    border: none;
    border-bottom: 2px solid #333;
    background-color: transparent;
    margin-top: 20px;
    font-size: 20px;
    font-family: 'NEXON Lv1 Gothic OTF';
}
.section.contact input:focus{
    outline: none;
}
.section.contact textarea{
    width: 100%;
    height: 200px;
    border: none;
    border-bottom: 2px solid #333;
    background-color: transparent;
    margin-top: 20px;
    font-size: 20px;
    font-family: 'NEXON Lv1 Gothic OTF';
}
.section.contact textarea:focus{
    outline: none;
}
.section.contact .btn{
    width: 200px;
    height: 50px;
    background-color: #fff;
    position: absolute;
    bottom: 5px;
    right: 5px;
    transition: all 0.5s; 
}
.section.contact .btn::after{
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 5px;
    left: 5px;
    background-color: #222;
    z-index: -2;
    transition: all 0.5s; 
}
.section.contact .btn:hover{
    bottom: 0;
    right: 0;
}
.section.contact .btn:hover::after{
    top: 0;
    left: 0;
}
.section.contact .btn button{
    width: 200px;
    height: 50px;
    border: 2px solid #222;
    background-color: #fff;
    cursor: pointer;
    font-size: 19px;
    font-weight: bold;
    font-family: 'NEXON Lv1 Gothic OTF';
}

.section.contact .thankyou_message{
    width: 100%;
    height: 600px;
    text-align: center;
    padding: 200px;
}

/* 반응형 */
@media screen and (max-width:1600px){
    .visual .center_box{width: 1280px;}

}

@media screen and (max-width:1440px){
    .visual .center_box{width: 1024px;}
    .section.simple .center_box{width: 1200px;}
}

@media screen and (max-width:1280px){
    .visual .center_box{width: 960px; top: 80px;}
    .section.simple .center_box{width: 1000px;}

}

@media screen and (max-width:1024px){
    .visual .center_box{width: 770px;}
    .section.simple .center_box{width: 900px;}
    .visual .center_box > .outline {font-size: 90px;}

    .section.simple h2{font-size: 32px;}
    .section.simple p{font-size: 18px}
    .section.contact label {font-size: 26px;}
}

@media screen and (max-width:960px){
    .section.contact {margin: 60px 0 120px;}
    .visual .center_box{width: 700px;}
    .section.simple .center_box, .section.contact .center_box{width: 700px;}
    .section.contact .thankyou_message {height: 500px; padding: 50px;}

}

@media screen and (max-width:769px){
    .visual .center_box{width: 100%; padding-left: 20px;}
    .visual .center_box > .outline .fill{padding-left: 20px;}
    .section.simple .center_box, .section.contact .center_box{ width: 100%; padding: 0 20px;}
    .section.contact .btn{right: 25px;}
    .section.contact .btn:hover{right: 20px;}
    .visual .center_box > .outline{font-size: 70px;}
}

@media screen and (max-width:560px){
    .visual .center_box > .outline{font-size: 60px;}
    .section.simple h2 {font-size: 26px;}
    .section.simple p {font-size: 16px; margin-top: 10px;}
    .section.contact {margin: 20px 0 100px;}
    .section.contact label{font-size: 20px;}
    .section.contact fieldset{margin-bottom: 15px;}
    .section.contact .center_box{height: 560px;}
    .section.contact .btn{width: 90%; right: 50%; transform: translate(50%, 0);}
    .section.contact .btn:hover{right: 50%;}
    .section.contact .btn .fa.fa-paper-plane{transition: all .5s;}
    .section.contact .btn:hover .fa.fa-paper-plane{color: #fff;}
    .section.contact .btn button{width: 100%; transition: all .5s;}
    .section.contact .btn::after{display: none;}
    .section.contact .btn:hover button{ background-color: #6400ff; color: #fff; border: 2px solid #6400ff;}
    .section.contact .thankyou_message {height: 400px; padding: 30px;}
}

@media screen and (max-width:460px){
    .visual .center_box > .outline{font-size: 45px;}
    .section.simple p{font-size: 14px;}
    .section.contact input{font-size: 18px;}
    .section.contact .btn button{font-size: 18px;}
    .section.contact .thankyou_message{padding: 0; height: 300px;}
    .section.contact .thankyou_message h2{ font-size: 20px;}
}

@media screen and (max-width:360px){
    .section.simple h2{font-size: 22px;}
    .section.simple p{font-size: 11px;}
    .section.contact input {font-size: 16px;}
    .section.contact .btn button{font-size: 16px; height: 45px;}
    .section.contact .thankyou_message h2{ font-size: 18px;}
}