#key {
	background: url(../img/concept/bg_key.jpg) no-repeat center/cover;
}
.key_ttl {
	position: absolute;
	right: -76px;
	top: 658px;
}
#sec1 {
	position: relative;
	letter-spacing: .8px;
	padding-bottom: 116px;
}
#sec1 .txt {
	width: 400px;
	height: 510px;
	padding: 151px 0 0 348px;
}
#sec1 h2 {
	position: absolute;
	top: -2px;
	right: -109px;
}
#sec1:before {
	background: url(../img/concept/bg_sec1.png) no-repeat center bottom/cover;
	height: 842px;
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	content: '';
}
#sec2 {
	position: relative;
	letter-spacing: .8px;
	padding: 6px 0 105px;
}
#sec2 h2 {
	margin-left: -191px;
}
#sec2 .txt {
	padding: 10px 0 15px 61px;
	width: 500px;
}
#sec2:before {
	background: url(../img/concept/bg_sec2.png) no-repeat left top;
	height: 1253px;
	position: absolute;
	top: -449px;
	right: 0;
	width: calc(50% + 306px);
	content: '';
}
#sec2 .link {
	padding-left: 51px;
}
#sec3 {
	position: relative;
	letter-spacing: .8px;
}
#sec3 h2 {
	margin-right: -39px;
	position: relative;
	z-index: 1;
	padding-top: 24px;
}
#sec3 h3 {
	position: absolute;
	top: 0;
	left: -99px;
}
#sec3 h4 {
	position: absolute;
	top: 431px;
	left: 279px;
}
#sec3 .txt {
	padding: 9px 0 302px 563px;
}
#sec3:before {
	background: url(../img/concept/bg_sec3.png) no-repeat center top;
	height: 663px;
	position: absolute;
	bottom: 0;
	left: 0;
	width: 100%;
	content: '';
}
#sec3 .wrap:before {
	background: url(../img/concept/sec3_deco.png) no-repeat center top;
	height: 257px;
	position: absolute;
	    top: 126px;
    right: -62px;
	width: 264px;
	content: '';
}
#sec4 {
	position: relative;
	background: url(../img/concept/bg_sec4.jpg) no-repeat center/cover;
	letter-spacing: .8px;
	padding: 149px 0 125px;
}
#sec4 .box_ct {
	background: rgba(0, 0, 0, 0.7);
	padding: 186px 0 52px;
	position: relative;
	width: 550px;
	margin-left: -49px;
	text-align: center;
}
#sec4 .box_ct h2 {
	position: absolute;
	top: -83px;
	left: 50px;
}
#sec4 .link {
	position: absolute;
	right: -22px;
	bottom: -64px;
}