@charset "utf-8";

.main_cont{width: 100%; height: 100%;}

.main_cont .main_section{height: 100%;position: relative;}
.main_cont .main_section .inner{height: 100%;}
.main_cont .main_section .copy{
    top: 0;
    left: 280px;
    position: absolute;
    z-index: 9;
}

.main_cont .main_section .copy .copy_txt{
    display: inline-block;
    padding: 60px 80px;
}
.main_cont .main_section .copy .copy_txt .main_txt{
    margin-bottom: 30px;
    font-size: 70px;
    font-weight: 700;
    letter-spacing: 1px;
    line-height: 1.1;
    text-transform: uppercase;
    color: #fff;
}
.main_cont .main_section .copy .txt_mask{
    overflow: hidden;
}
.main_cont .main_section .copy .txt_mask > span{    
    display: block;
	transition: opacity 1.8s cubic-bezier(0.25, 1, 0.5, 1), transform 1.5s cubic-bezier(0.25, 1, 0.5, 1);
	transition-delay: 0.7s;
	opacity: 1;
}
.main_cont .main_section .copy .txt_mask:nth-child(2) > span{transition-delay: 0.8s;}
.main_cont .main_section .copy .txt_mask:nth-child(3) > span{transition-delay: 0.9s;}
.main_cont .main_section .copy .txt_mask:nth-child(4) > span{transition-delay: 1s;}
.main_cont .main_section .copy .txt_mask:nth-child(5) > span{transition-delay: 1.1s;}

.main_cont .main_section .copy .copy_txt .sub_txt{    
    font-size: 18px;
    line-height: 1.5;
    color: #fff;
    margin-left: 3px;
    margin-bottom: 50px;
}

.main_cont .main_section .copy.hidden .txt_mask > span {
	opacity: 0;
	transform: translateY(30px);
}

/* more_btn */
.main_cont .main_section .copy .more_btn{overflow: hidden;}

.main_cont .main_section .copy .more_btn .plus_btn{
    display: inline-block;
    padding: 10px 20px;
    border: 1px solid #fff;
	transition: opacity 1.8s cubic-bezier(0.25, 1, 0.5, 1), transform 1.5s cubic-bezier(0.25, 1, 0.5, 1);
	transition-delay: 1.2s;
	opacity: 1;
}
.main_cont .main_section .copy.hidden .more_btn .plus_btn {
    opacity: 0;
    transform: translateY(30px);
}
.more_btn .plus_btn:hover .line:nth-child(2) {
    transform: rotate(-90deg);
    transition-delay: 0s;
}
.more_btn .plus_btn:hover .line:nth-child(3), 
.more_btn .plus_btn:hover .line:nth-child(4) {
    transition-delay: 0.2s;
}
.plus_btn:hover .line:nth-child(3) {
    transform: rotate(45deg);
}
.plus_btn:hover .line:nth-child(4) {
    transform: rotate(-45deg);
}

.more_btn .line_wrap {
    position: relative;
    width: 16px;
    height: 16px;
}
.more_btn .line_wrap .line {
    background-color: #fff;
    position: absolute;
    transition: transform 0.2s;
}
.more_btn .line_wrap .line:nth-child(1) {
    width: 16px;
    height: 3px;
    top: 50%;
    left: 0;
    margin-top: -1.5px;
}
.more_btn .line_wrap .line:nth-child(2) {
    width: 3px;
    height: 16px;
    top: 0;
    left: 50%;
    margin-left: -1.5px;
    transition-delay: 0.2s;
}
.more_btn .line_wrap .line:nth-child(3),
.more_btn .line_wrap .line:nth-child(4) {
    width: 10px;
    height: 3px;
    top: 50%;
    right: 0;
    margin-top: -1.5px;
    transition-delay: 0s;
}
.more_btn .line_wrap .line:nth-child(3) {
    transform-origin: bottom right;
}
.more_btn .line_wrap .line:nth-child(4) {
    transform-origin: top right;
}


@media (max-width: 1400px) {
	.main_cont .main_section .copy {
		left: 260px;
	}
    .main_cont .main_section .copy .copy_txt .main_txt{font-size: 60px;}
}

@media (max-width: 1100px) {
	.main_cont .main_section .copy {
		top: auto;
		bottom: 100px;
		left: 0;
	}
	.main_cont .main_section .copy .copy_txt {
		padding: 50px;
	}
	.main_cont .main_section .copy .copy_txt .main_txt {
        font-size: 50px;
		margin-bottom: 25px;
	}
	.main_cont .main_section .copy .copy_txt .sub_txt {
		font-size: 16px;
		margin-left: 0;
        margin-bottom: 35px;
	}
}

@media (max-width: 600px) {
	.main_cont .main_section .copy {
		bottom: 60px;
		width: 100%;
	}
	.main_cont .main_section .copy .copy_txt {
		padding: 20px;
		width: 100%;
	}
	.main_cont .main_section .copy .copy_txt .main_txt {
		margin-bottom: 15px;
	}
	.main_cont .main_section .copy .copy_txt .main_txt {
        font-size: 35px;
		line-height: 1.05;
	}
	.main_cont .main_section .copy .copy_txt .sub_txt {
		font-size: 14px;
        margin-bottom: 20px;
	}
}


/* main_section-image */
.main_cont .main_section .section_bg{width: 100%; height: 100%; background-color: #000; position: absolute;left: 0;top: 0; z-index: 1; overflow: hidden;}
.main_cont .main_section .section_bg *{opacity: 0.85;}
.main_cont .main_section .section_bg .image{
    background-size: cover;
    background-position: center center;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.main_cont .main_section:nth-child(2) .section_bg .image{background-image: url('../img/main_bg_02.jpg');}
.main_cont .main_section:nth-child(4) .section_bg .image{background-image: url('../img/main_bg_04.jpg');}

.main_cont .main_section .section_bg .video {
    position: absolute;
	top: 50%;
	left: 50%;
	width: auto;
	height: auto;
	transform: translate(-50%, -50%);
	z-index: 3;
}
@media (min-aspect-ratio: 16/9) {
	.main_cont .main_section .section_bg .video {
		width: 100%;
	}
}

@media (max-aspect-ratio: 16/9) {
	.main_cont .main_section .section_bg .video {
		height: 100%;
	}
}

/* .main_cont .main_section.footer{height: 250px;background: #000;}
@media (max-width: 1100px){
    .main_cont .main_section.footer{height: 100px;}
} */