body {
font-family: 'Avenir','Helvetica Neue','Helvetica',
'Arial','Hiragino Sans','ヒラギノ角ゴシック',YuGothic,
'Yu Gothic','メイリオ', Meiryo,'ＭＳ Ｐゴシック','MS PGothic' ;
line-height:1.8;
letter-spacing:0.05em;
margin: 0;
}

#header {
	position: relative;
	width: 100%;
	height: 60vh;
	overflow: auto;
	background-image: url(./dataFolder/DSC_0244.JPG);
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
	margin-top: 30px;
}
@media (max-width: 1010px) {
	#header {
		height: 40vw;
	}
}
#header::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	width: 100%;
	background-color: rgba(0, 0, 0, 0.3);
}

#header_box {
	position: absolute;
	width: 100%;
	height: 100%;
}
#header p {
	position: absolute;
	top: 50%;
	left: 50%;
	margin: 0;
	-ms-transform: translate(-50%,-50%);
	-webkit-transform : translate(-50%,-50%);
	transform : translate(-50%,-50%);
	font-weight: bold;
	font-size: 5vw;
	color: white;
	line-height: 1.5em;
	text-align: center;
}
@media (max-width: 1010px) {
	#header p{
		top: 22vw;
	}
}
#header p span{
	font-size: 2vw;
}

h1 {
	font-size:25px;
	font-weight:bold;
	margin: 0;
	padding: 0;
	padding-left:30px;
}
h2 {
	margin:10px;
	margin-top: 30px;
	border-bottom-style:dotted;
	border-bottom-color:gray;
	border-left-style:solid;
	border-left-color:orange;
	padding-left: 15px;
}
h3 {
	margin:10px;
	border-left:double 4px brown;
	padding-left: 25px;
	background-color: rgb(220, 230, 231);
}
h4 {
	margin: 0.2em 0;
	margin-left: 5px;
	padding-left: 10px;
	border-left: double 7px rgb(197, 75, 237);
}

.wrapper {
	width: 100%;
	margin: 20px auto;
	max-width: 1000px;
}

.cover {
	width: 100%;
	float: left;
	/* margin-right: -250px; */
	margin: 0px auto;
}
/* @media (max-width: 1010px) {
	.cover {
		margin-right: 0px;
	}
} */

.content{
	float: left;
	background-color: white;
	padding: 20px;/*40から20にした*/

	/* margin: auto; */
	/* min-width: 350px; */
	border-right-style: ridge;
	border-right-color: rgb(193, 180, 199);
	border-left-style: ridge;
	border-left-color: rgb(193, 180, 199);

}
@media (min-width: 1011px) {
	.content{
		margin-right: 260px;
		margin-left: 20px;
	}

}

.content img {
	max-width: 600px;
	padding: 0 ;
	width: 100%;
	margin: 20px auto;


}
@media (max-width: 1010px) {
	/* .content {
		margin-right: 20px;
	} */
	.content{
		margin: auto;
		padding: 0 20px;
		width: calc(100% - 40px);

	}
}

.balloon_rb {
	position: relative;
	max-width: 200px;
	padding: 1vw;
	margin: 0;
	margin-bottom: 70px;
	text-align: center;
	color: black;
	border-radius: 15px;
	border: solid 2px red;
}
.balloon_rb::before {
	/* making triangle */
	content: '';
	position: absolute;
	top: 50%;
	left: 100%;
	border: 15px solid transparent;
	border-left: 10px solid red;
	/*-ms-transform: rotate(-10deg);
	-webkit-transform: rotate(-10deg);
	transform: rotate(-10deg);*/
}
.balloon_rb p {
	display: block;
	padding: 0;
	margin: 0;
}
.balloon_rb::after {
	/* placing roberuta */
	content: '';
	position: absolute;
	background-image: url(./dataFolder/Roberuta_shadow2.png);
	background-size: 100px auto;
	background-repeat: no-repeat;
	width: 100px;
	height: 180px;
	top: 20%;
	left: 100%;
}
.right_justifyed {
	float: right;
}
.right_justifyed::after {
	content: '';
	clear: both;
}

.social_bar {
	position: relative;
	width: 180px;
	height: 40px;
	margin: 2px 0px;
	display: inline-block;
	border: solid 1px black;
}
.social_bar a {
	position: absolute;
	top: 0;
	left: 0;
	width: 130px;	/*social_bar width - 50px(icon width)*/
	height: 100%;
	padding-left: 50px;
	margin: 0;
	text-align: center;
	line-height: 40px;
	vertical-align: middle;
	text-decoration: none;
	text-align: center;
	background: rgb(124, 163, 50);
	font-weight: bold;
	color: white;
}
.social_bar a i{
	position: absolute;
	top: 0;
	left: 0;
	width: 30px;
	text-align: center;
	line-height: 30px;
	vertical-align: middle;
	padding: 5px 10px;
	margin: 0;
	background-color: rgb(171, 171, 171);
	border-right-style: dashed;
	border-right-color: white;
	font-size: 1.5em
}
.social_bar a:hover .fa-youtube {color: red}
.social_bar a:hover .fa-twitter {color: skyblue}
.social_bar a:hover .fa-facebook {color: rgb(52, 57, 242)}
.social_bar a:hover .fa-blogger {color: orange}
.social_bar a:hover .fa-github {color: black}
.social_bar a:hover .fa-gitlab {color: orange}

.side_bar {
	width: 250px;
	float: right;
	margin-left: -250px;
	padding: 0;
	text-align: center;
}
.side_bar img{
	width: 180px;
	display: inline-block;
}

@media (max-width: 1010px) {
	.side_bar {
		display: none;
	}
	.side_bar .cover .content {
		float: none;
		width: auto;
	}
}

.question{
	padding:1vw;
	margin:10px;
	border-style:double;
	border-color:aqua;
	border-radius:10px;
}
.question::before {
	content:"Q. ";
	font-weight: bold;
	color:red;
}
.ans {padding: 0 20px;}
.ans::before {
	content: "A. ";
}

.link_button {
	font-weight:bold;
	text-decoration:none;
	background-color:burlywood;
	color:white;
	padding:10px 10px;
	border-radius:20px;
}
.link_button:hover {
	background-color:aqua;
	text-decoration:none;
}
.link_button:visited {
	color:gray;
}
.member_body{
	width: 600px;
	height: 350px;
}
.member_image {
	float: left;
	width: 200px;
}
.member_text {
	float: right;
	width: 340px;
	padding-top: 10px;
}
.member_title {
	height: 50px;
	font-size: 18pt;
	font-weight: bold;
	border-bottom-style:dotted;
	border-bottom-color:gray;
	border-left-style:solid;
	border-left-color:orange;
	padding-left: 10px;
}

.robots__img{
	width: 20vw;
	height: auto;
}
.robots__item{
	width: 20vw;
	height: auto;
}
@media (max-width: 510px) {
	/* .robots__img{
		width: 0vw;
	} */
	.robots__item{
	width: 80vw;
	height: auto;
}
}



.robots {

	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 1rem;


}
.tatenaga_img_container {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 1rem;
	
}
@media (min-width: 1011px) {
	.tatenaga_img_box {
		width: 25vw;
		height: auto;	
		/* object-fit: contain; */
	}
}


@media ((min-width: 601px) and (max-width: 1010px)) {
	.tatenaga_img_box {
		width: 35vw;
		height: auto;	
		/* object-fit: contain; */
}

@media (max-width: 600px) {
	.tatenaga_img_box {
		height: 70vw;
		width: auto;
	}
	
}
	
}


.yokonaga_img {
	
	width: 35vw;
	height: auto;
	object-fit: contain;
	justify-items: center;
	margin: auto;
}