/* CSS Document */
@charset "utf-8";
/*************************
 main
**************************/

.sec_concept img.top_logo {
	width: 70px;
	display: block;
	margin: auto;
}

/* .youtube_box {
	background-color: #1b1b1b;
	padding: 10px 15px 15px;
	margin: 50px 0 40px;
} */

.youtube_box {
	background-color: #1b1b1b;
	padding: 10px 15px 15px;
	margin: 60px 0 40px;
}
.youtube_box .youtube_box_head {
	padding: 0 0 10px;
}
.youtube_box .youtube_box_head img {
	display: block;
	width: 100px;
}
.youtube_box .youtube_box_inner {
	background-color: #fff;
	padding: 10px;
	display: flex;
	align-items: center;
	justify-content: center;
}
.youtube_box .youtube_box_inner p {
	color: #000;
	font-size: 24px;
	font-weight: bold;
}

.sec_concept {
	background-image: url(../../concept/img/concept_top.png);
	background-size: cover;
	background-repeat: no-repeat;
	background-position: 50% 60%;
	padding: 100px 50px;
	/* margin: 0 0 70px; */
	background-color: #000;
	color: #fff;
}
.wrap_800px_concept{
    max-width: 800px;
    margin: auto;
    line-height: 1.85;
}
.conceptTitle {
	position: relative;
	font-size: 2em;
	line-height: 100%;
	margin: 20px auto 30px;
	text-align: center;
	padding: 0 0 20px;
}
.conceptTitle span {
	margin-top: 20px;
	font-size: 16px;
	display: inline-block;
	line-height: 100%;
}
.conceptTitle::after {
	content: "";
	position: absolute;
	bottom: 0;
	left: 50%;
	margin-left: -200px;
	width: 400px;
	height: 2px;
	background-color: #fff;
}

.conceptText {
	font-size: 18px;
	text-align: center;
}
.conceptText span{
    font-weight: bold;
    padding: 0 3px;
}

.conceptImg{
    margin: 0 auto 60px;
    width: 100%;
}
.conceptImg img {
	display: block;
	width: 100%;
	height: 600px;
	object-fit: cover;
}

.conceptImg_001 {
  margin: 60px 0 0;
}
.conceptImg_001 img {
  display: block;
  width: 100%;
}


.conceptImg_002 {
    display:-ms-flexbox;/*--- IE10 ---*/
    display:-webkit-flex;/*--- safari（PC）用 ---*/
    display:flex;
    -ms-flex-wrap:wrap;/*--- IE10用 ---*/
    -webkit-flex-wrap:wrap;/*--- safari（PC）用 ---*/
    flex-wrap:wrap;
    -webkit-justify-content: space-between; /* Safari */
    justify-content:          space-between;
  	background-color: #000;
  	padding: 60px 0;
}

.conceptImg_002 img {
	display: block;
	height: auto;
	width: 24.9%;
	margin: 0 0px 1px;
}