@charset "UTF-8";

/* ▼▼▼ トップ
======================================================*/
/* ▼▼▼ 480px〜768px
======================================================*/
@media screen and (min-width: 768px) {
#site_title {
	background: url(../img/it/logo_it.png)no-repeat top left;
	background-size: contain;
	height: 74px;
}
	#site_title img {
		display: none;
	}
}

/* 共通
--------------------------------------- */
header {
	position: absolute;
	top: 0;
	z-index: 1;
}
	#gnav ul > li a {
		color: #fff;
	}

#main {
	max-width: 100%;
	margin-bottom: 0;
}
#mainVisual {
	position: relative;
	margin-bottom: 30px;
}
	#mainVisual h1{
		background: url(../img/it/title.png) no-repeat center/668px;
		width: 100%;
		height: 100%;
		position: absolute;
		top: 0;
		text-indent: -9999px;
	}

section {
	padding: 50px 0;
}
h2 {
	margin-bottom: 25px;
	font-size: 36px;
	text-align: center;
}
.btn_contact a {
	display: block;
	background: #1d2088;
	width: 330px;
	padding: 16px;
	margin: 0 auto;
	color: #fff;
	font-weight: bold;
	text-align: center;
	position: relative;
}
	.btn_contact a::before {
		display: inline-block;
		content: "";
		width: 22px;
		height: 22px;
		background: url(../img/icon_contact.png) no-repeat top center;
		background-size: contain;
		margin-right: 10px;
		vertical-align: middle;
	}
	.btn_contact a:after {
		content: "";
		display: block;
		background: url(../img/icon_arrow_w.png) no-repeat top center/20.31px 5px;
		width: 35px;
		height: 20px;
		position: absolute;
		top: 45%;
		right: 15px;
	}

/* #it_about
 　IT分野の最新の技術・研究開発にチャレンジ！
--------------------------------------- */
#it_about{
	padding-top: 50px;
	position: relative;
}
	#it_about p.photo {
		width: 45vw;
		max-height: 478px;
		position: absolute;
		top: 50px;
		right: 0;
		overflow: hidden;
	}
	#it_contents .bg_area{
		position: relative;
	}
	#it_about span.bg {
		width: 80%;
		max-width: 1100px;
		height: 415px;
		position: absolute;
		top: 0;
		right: 0;
		overflow: hidden;
	}
	#it_about h2{
		margin-bottom: 50px;
		text-align: left;
	}
	#it_about .read{
		max-width: 500px;
		width: 100%;
		margin-bottom: 100px;
	}

	#it_about .list_area p{
		padding-left: 25px;
		font-weight: bold;
		position: relative;
	}
	#it_about .list_area p:before{
		content: "";
		border-top: 1px solid #000;
		width: 16px;
		position: absolute;
		top: 50%;
		left: 0;
		transform: translateY(-50%);
	}
	#it_about .list_area ul{
		padding-left: 20px;
	}
	#it_about .list_area ul li{
		text-indent: -1em;
		padding-left: 1em;
	}


/* #it_contents IT研究開発事業
--------------------------------------- */
#it_contents h3{
	display: inline-block;
	border-bottom: 1px solid #1D2088;
	padding-bottom: 10px;
	margin-bottom: 15px;
	font-size: 18px;
}
#it_contents h3 + p{
	clear: both;
	line-height: 1.7;
	margin-bottom: 20px;
}

#it_contents .inner_box{
	margin-bottom: 40px;
	position: relative;
	overflow: hidden;
}
	#it_contents .inner_box p.photo{
		width: 44vw;
		max-height: 290px;
		position: absolute;
		left: 0;
		top: 45px;
		overflow: hidden;
	}
	#it_contents .inner_box span.bg {
		width: 35%;
		max-width: 1100px;
		height: 278px;
		position: absolute;
		left: 0;
		top: 0;
		overflow: hidden;
	}
		#it_contents .inner_box:nth-of-type(even) p.photo{
			left: auto;
			right: 0;
		}
		#it_contents .inner_box:nth-of-type(even) span.bg {
			left: auto;
			top: 100px;
			right: 0;
		}
	#it_contents .inner_box p.photo:after{
		content: "";
		background: url(../img/it/title_txt_02.png) no-repeat right center/contain;
		width: 225px;
		height: 103px;
		position: absolute;
		top: 25%;
		right: 40px;
	}
	#it_contents .inner_box:nth-of-type(2) p.photo:after{
		background: url(../img/it/title_txt_03.png) no-repeat right center/contain;
		width: 260px;
		height: 130px;
		right: auto;
		left: 40px;
	}
	#it_contents .inner_box:nth-of-type(3) p.photo:after{
		background: url(../img/it/title_txt_04.png) no-repeat right center/contain;
		width: 224px;
		height: 134px;
	}
	#it_contents .inner_box .txt_area{
		float: right;
		max-width: 540px;
		width: 100%;
		margin-bottom: 50px;
	}
	#it_contents .inner_box:nth-of-type(even) .txt_area{
		float: none;
		max-width: 540px;
		width: 100%;
		margin-bottom: 100px;
	}

/* #it_Iot IT/IOT開発
--------------------------------------- */
#it_iot{
	background: #F4F3F9;
}
	#it_iot h2{
		margin-bottom: 40px;
	}

/* ホバー時クローズアップ */
ul.photo_focus{
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	margin-bottom: 50px;
	overflow: hidden;
}
	ul.photo_focus li{
		width: 48%;
		position: relative;
		overflow: hidden;
		cursor: pointer;
		z-index: 0;
	}
	ul.photo_focus li > div{
		overflow: hidden;
	}
	#it_iot ul.photo_focus li:not(:nth-last-child(-n + 2)){
		margin-bottom: 50px;
	}
	ul.photo_focus li a{
		display: table;
		width: 100%;
		height: 255px;
		position: relative;
		overflow: hidden;
	}
		ul.photo_focus li a:before {
			content: "";
			display: block;
			width: 100%;
			height: 100%;
			position: absolute;
			top: 0;
			transition: transform 0.5s linear;
			z-index: 1;
		}
			ul.photo_focus li:first-child a:before{
				background: url(../img/it/iot_01.png) no-repeat center/cover;
			}
			ul.photo_focus li:nth-child(2) a:before{
				background: url(../img/it/iot_02.png) no-repeat center/cover;
			}
			ul.photo_focus li:nth-child(3) a:before{
				background: url(../img/it/iot_03.png) no-repeat center/cover;
			}
			ul.photo_focus li:nth-child(4) a:before{
				background: url(../img/it/iot_04.png) no-repeat center/cover;
			}
			ul.photo_focus li:nth-child(5) a:before{
				background: url(../img/it/iot_05.png) no-repeat center/cover;
			}
			ul.photo_focus li:nth-child(6) a:before{
				background: url(../img/it/iot_06.png) no-repeat center/cover;
			}
		ul.photo_focus li a:hover {
			opacity: 1;
		}
		ul.photo_focus li:hover a:before {
			transform: scale(1.09);
			transition: transform 0.5s linear;
		}
	ul.photo_focus li a p{
		display: table-cell;
		vertical-align: middle;
		width: 100%;
		height:100%;
		font-size: 20px;
		color: #fff;
		font-weight: bold;
		text-align: center;
		line-height: 1.4;
		overflow: hidden;
		z-index: 9;
		position: relative;
	}
	ul.photo_focus li a span{
		display: block;
		font-size: 20px;
		text-align: center;
	}

#it_iot .bg_box{
	background: #fff;
	padding: 35px 60px;
}
	#it_iot .bg_box h3{
		margin: 0 0 10px;
		color: #1D2088;
		font-size: 26px;
		text-align: center;
	}
	#it_iot .bg_box h3 + p{
		margin: 0 0 20px;
		font-weight: bold;
	}


/* #it_product 自社開発製品
--------------------------------------- */
#it_product{
	background: url(../img/it/bg.png) no-repeat center/cover;
}
	#it_product ul{
		display: flex;
		align-items: center;
		justify-content: space-between;
		margin: 0 0 50px;
	}
	#it_product ul li{
		width: 30%;
	}
	#it_product ul li a{
		display: block;
	}
	#it_product ul li p{
		text-align: center;
	}
	#it_product ul li h3{
		border-bottom: 2px solid #1D2088;
		margin: 20px auto 10px;
		color: #1D2088;
		font-size: 24px;
		text-align: center;
	}
	#it_product ul li h3 + p{
		line-height: 1.6;
	}


/* #it_partner パートナー&加盟団体
--------------------------------------- */
#it_partner{
	background: url(../img/top/bg_partner.png) no-repeat center/cover;
}
	#it_partner h2{
		font-size: 36px;
	}
	#it_partner .read{
		margin: 0 0 30px;
		font-weight: bold;
	}
	.partner_list{
		display: flex;
		justify-content: space-between;
	}
	.partner_list li{
		width: 19%;
	}

/* #link_list
--------------------------------------- */
#link_list{
	background: url(../img/it/bg.png) no-repeat center/cover;/*terada*/
	padding: 80px 0;
}
	#link_list ul.photo_focus{
		justify-content: inherit;
		margin: 0;
	}
	#link_list ul.photo_focus li{
		width: 22%;
		height: 150px;
		margin-right: 4%;
	}
	#link_list ul.photo_focus li:not(:nth-last-child(-n + 3)) {
		margin-bottom: 20px;
	}
	#link_list ul.photo_focus li:nth-child(4n){
		margin-right: 0;
	}
	#link_list ul.photo_focus li a{
		width: 225px;
		height: 150px;
	}
		#link_list ul.photo_focus li a:before{
			background: none;
		}
		#link_list ul.photo_focus li:first-child a:before{
			background: url(../img/it/list_01.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(2) a:before{
			background: url(../img/it/list_02.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(3) a:before{
			background: url(../img/it/list_03.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(4) a:before{
			background: url(../img/it/list_04.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(5) a:before{
			background: url(../img/it/list_05.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(6) a:before{
			background: url(../img/it/list_06.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(7) a:before{
			background: url(../img/it/list_07.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(8) a:before{
			background: url(../img/it/list_08.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(9) a:before{
			background: url(../img/it/list_09.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(10) a:before{
			background: url(../img/it/list_10.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(11) a:before{
			background: url(../img/it/list_12.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(12) a:before{
			background: url(../img/it/list_13.png) no-repeat center/cover;
		}	
		#link_list ul.photo_focus li:nth-child(13) a:before{
			background: url(../img/it/list_14.png) no-repeat center/cover;
		}
		#link_list ul.photo_focus li:nth-child(14) a:before{
			background: url(../img/it/list_15.png) no-repeat center/cover;
		}
	#link_list ul.photo_focus li a p{
		font-size: 20px;
	}
	#link_list ul.photo_focus li:nth-child(n + 5){
		border: 1px solid #B7B7B7;
	}
	#link_list ul.photo_focus li:nth-child(n + 5):hover{
		opacity: .7;
	}



/* ▼▼▼ 480px〜768px
======================================================*/
@media screen and (max-width: 768px) {
	/* 共通
	--------------------------------------- */
	header {
		position: fixed;
	}
	#gnav ul > li a {
		color: #333;
	}

	#main {
		max-width: 100%;
		margin-bottom: 0;
		font-size: 16px;
	}
	#mainVisual {
		position: relative;
		}
		#mainVisual h1{
			background: url(../img/it/title_sp.png) no-repeat center/310px;
			/* top: -20px; */
			top: 40px;
		}

	section {
		padding: 30px 0 60px;
	}
	h2 {
		margin-bottom: 15px;
		font-size: 24px;
	}
	.btn_contact a {
		display: block;
		background: #1d2088;
		max-width: 280px;
		width: 100%;
		padding: 16px;
		margin: 0 auto;
		color: #fff;
		text-align: center;
		position: relative;
	}
		.btn_contact a::before {
			display: inline-block;
			content: "";
			width: 22px;
			height: 22px;
			background: url(../img/icon_contact.png) no-repeat top center;
			background-size: contain;
			margin-right: 10px;
			vertical-align: middle;
		}
		.btn_contact a:after {
			content: "";
			display: block;
			background: url(../img/icon_arrow_w.png) no-repeat top center/20.31px 5px;
			width: 35px;
			height: 20px;
			position: absolute;
			top: 45%;
			right: 10px;
		}


	/* #it_about
	 　IT分野の最新の技術・研究開発にチャレンジ！
	--------------------------------------- */
	#it_about{
		padding-top: 20px;
	}
		#it_about p.photo {
			float: right;
			width: 85vw;
			max-height: 260px;
			margin-bottom: 30px;
			position: static;
		}
		#it_about span.bg {
			width: 90%;
		}
		#it_about h2{
			max-width: 320px;
			width: 100%;
			margin-bottom: 30px;
		}
		#it_about .read{
			max-width: 500px;
			width: 100%;
			margin-bottom: 50px;
		}

		#it_about .list_area p{
			padding-left: 35px;
			margin: 0 0 10px;
			font-size: 18px;
		}
		#it_about .list_area p:before{
			width: 27px;
		}
		#it_about .list_area ul{
			padding-left: 0;
		}

	/* #it_contents IT研究開発事業
	--------------------------------------- */
	#it_contents h3{
		margin: 20px auto;
		font-size: 20px;
	}
	#it_contents h3.right{
		float: none;
	}
	#it_contents h3 + p{
		clear: both;
		line-height: 1.7;
		margin-bottom: 20px;
	}

	#it_contents .inner_box{
		padding-top: 30px;
		margin-bottom: 0;
	}
		#it_contents .inner_box:nth-of-type(2){
			/* margin-bottom: 30px; */
		}
		#it_contents .inner_box:nth-of-type(2) p.photo{
			margin-bottom: 20px;
		}
		#it_contents .inner_box p.photo{
			width: 90%;
			max-height: 445px;
			margin: 0 auto;
			position: static;
		}
		#it_contents .inner_box span.bg {
			width: 90%;
			height: 142px;
			top: -30px;
		}
			#it_contents .inner_box:nth-of-type(even) span.bg {
				top: auto;
				bottom: -30px;
			}
		#it_contents .inner_box p.photo:after,
		#it_contents .inner_box:nth-of-type(2) p.photo:after,
		#it_contents .inner_box:nth-of-type(3) p.photo:after{
			background: none;
		}
		#it_contents .inner_box .txt_area{
			float: none;
			margin-bottom: 0;
			text-align: center;
		}
		#it_contents .inner_box:nth-of-type(even) .txt_area{
			margin-bottom: 30px;
		}
		#it_contents .inner_box .txt_area .btn a{
			width: 100%;
		}


	/* #it_Iot IT/IOT開発
	--------------------------------------- */
	#it_iot{
		background: #F4F3F9;
	}
		#it_iot h2{
			margin-bottom: 20px;
		}

	/* ホバー時クローズアップ */
	ul.photo_focus{
		display: block;
		margin-bottom: 30px;
	}
		ul.photo_focus li{
			width: 100%;
		}
		#it_iot ul.photo_focus li:not(:nth-last-child(-n + 2)){
			margin-bottom: 0;
		}
		#it_iot ul.photo_focus li:not(:last-child){
			margin-bottom: 30px;
		}
		ul.photo_focus li a{
			width: 100%;
			height: 50vw;
		}
		ul.photo_focus li a p{
			font-size: 20px;
		}


	#it_iot .bg_box{
		padding: 20px 20px 30px;
	}
		#it_iot .bg_box h3{
			margin: 0 0 10px;
			color: #1D2088;
			font-size: 26px;
			text-align: center;
		}
		#it_iot .bg_box h3 + p{
			margin: 0 0 20px;
			font-weight: bold;
		}


	/* #it_product 自社開発製品
	--------------------------------------- */
	#it_product{
		background: url(../img/it/bg.png) no-repeat center/cover;
	}
		#it_product ul{
			display: block;
		}
		#it_product ul li{
			width: 100%;
			margin-bottom: 50px;
		}
		#it_product ul li img{
			width: 111px;
		}
		#it_product ul li a{
			display: block;
		}
		#it_product ul li h3{
			border-bottom: 1px solid #1D2088;
			margin: 10px auto;
			font-size: 20px;
		}
		#it_product ul li h3 + p{
			line-height: 1.6;
		}


	/* #it_partner パートナー&加盟団体
	--------------------------------------- */
	#it_partner{
		background: url(../img/top/bg_partner.png) no-repeat center/cover;
	}
		#it_partner h2{
			font-size: 24px;
			margin-bottom: 15px;
		}
		#it_partner .read{
			margin: 0 0 30px;
			font-weight: bold;
		}
		.partner_list{
			flex-wrap: wrap;
		}
		.partner_list li{
			width: 48%;
		}
		.partner_list li:not(:last-child){
			margin: 0 0 4%;
		}

	/* #link_list
	--------------------------------------- */
	#link_list{
		background: url(../img/it/bg.png) no-repeat center/cover;/*terada*/
		padding: 40px 0;
	}
		#link_list ul.photo_focus{
			display: flex;
			flex-wrap: wrap;
			justify-content: inherit;
			margin: 0;
		}
		#link_list ul.photo_focus li{
			width: 48%;
			height: 25vw;
			margin-right: 0;
		}
		#link_list ul.photo_focus li:not(:nth-last-child(-n + 3)) {
			margin-bottom: 0;
		}
		#link_list ul.photo_focus li:not(:last-child){
			margin-bottom: 20px;
		}
		#link_list ul.photo_focus li:nth-child(odd){
			margin-right: 4%;
		}

		#link_list ul.photo_focus li a{
			width: 100%;
			height: 25vw;
		}
		#link_list ul.photo_focus li a p{
			font-size: 14px;
		}
		#link_list ul.photo_focus li:nth-child(5) img{
			width: 80%;
		}
		#link_list ul.photo_focus li img{
			width: 85%;
		}
		#link_list ul.photo_focus li:nth-child(n + 5):hover{
			opacity: 1;
		}

}

/* ▼▼▼ 480px〜768px
======================================================*/
@media screen and (max-width: 340px) {
	.btn_contact a:after{
		display: none;
	}

}