@charset "utf-8";
/*--------- sp ---------*/
main{
    background-image: url("../images/bim/img_01.jpg");
    background-position: right top;
    background-size: auto 550px;
    background-repeat: no-repeat;
    background-attachment: fixed;
}
/*背景*/
.bd_center{
	background-image: url("../images/civil/png_03.png")	;	
	}
.bd_gradient{	
		padding-bottom:  clamp(50px,10vw,100px);
	}
/*タイトルが改行する場合は2段で表示 sp*/
.title_inner h1{
	display: inline-block;
}
/*----- 建築部の目標 sp -----*/
.about{
	width: min(90%,1280px);
	margin: 0 auto;
}
.about_inner{
}
.about_tx .main_btn{
	padding: 0;
}
.about_img{
	aspect-ratio: 960 / 650;
	position: relative;
	width: min(90%,600px);
	margin: 0 auto;
}
.about_img img{
	width: min(110%,960px);
	position: absolute;
	top: -13vw;
	left: 0;
}
.about_tx{
	padding-top: 20px;
}
.about_inner2{
	padding-top: 40px;
}
.design_ban{
	border: 2px solid #333333;
	line-height: 0;
	margin-top: 14px;
}





/*----- 事業内容 sp -----*/
.service{
	width: min(90%,1820px);
	margin: 0 auto;
}
.service_inner{
	padding-top: 60px;
}
.service_tx{
	
}
.service_img{
	width: min(100%,698px);
	margin: 0 auto;
}
/*----- 区切り線 sp -----*/
.separation{
	position: relative;
	display: inline-block;
	width: 100%;
	text-align: center;
	color:#ffffff;
	margin: clamp(20px,3vw,50px) 0  clamp(35px,4vw,60px);
}
.separation::before,
.separation::after {
	content: '';
	position: absolute;
	top: 50%;
	display: inline-block;
	width: calc((100% - 6em) / 2);
	height: 1px;
	border-top: 1px solid #ffffff;
}
.separation::before {
	left:0;
}
.separation::after {
	right: 0;
}
/*----- サービス1 sp -----*/
.service1_inner{
	
}
.service_tx1{
	font-size: clamp(1.3rem,1.2vw,1.6rem);
}
.service_tx1 h3{
	padding-bottom: clamp(20px,3.5vw,40px);
}
.service1_img{
	width: 90%;
	padding-bottom: clamp(18px,2vw,30px);
	line-height: 0;
	margin: 0 auto;
	overflow: hidden;
}
.service1_img img{
	border-radius: clamp(10px,1.5vw,20px);
	width: 100%;
	height: 200px;
	object-fit: cover;
	object-position: 50% 50%;
}
.book a{
	display: block;	
	padding-bottom: clamp(45px,6vw,65px);
}
.book_img{
	width:  min(90%,240px);
	aspect-ratio: 240 / 180;
	overflow: hidden;
	margin: clamp(15px,2vw,25px) auto 0;
	line-height: 0;
}
.book_img img{
	border-radius: clamp(10px,1.5vw,20px);
	height: 100%;
}
.book_tx{
	text-align: center;
	padding-top: clamp(5px,1vw,10px);
	padding-left: 7px;
	padding-right: 7px;
	color: #ffffff;
	font-size: 1.3rem;
}

/*----- 技術紹介 sp -----*/
.technology{
	width: min(90%,1740px);
	margin: clamp(70px,11vw,140px) auto 0;
	padding: clamp(20px,4.5vw,50px) 15px clamp(25px,3.2vw,55px);
	background-image: url("../images/civil/png_01.png");
	background-repeat: repeat;
    background-position: center center;
	background-size: 18px auto;
	background-color: #ffffff;
	color: #333333;
}
.technology_ti{
	width: 11em;
	text-align: center;
	margin: 0 auto;
	border: 2px solid #333333;
	border-radius: 50px;
	padding: 3px 0;
	font-size: clamp(1.6rem,1.8vw,2.0rem);
	font-weight: 700;
}
.technology_en{
	text-align: center;
	padding-top: clamp(3px,1vw,5px);
}
.technology_wrap{
	
}
.technology_box{
	padding-top: clamp(28px,3vw,37px);
}
.technology_img{
	aspect-ratio: 400 / 380;
	overflow: hidden;
	width: min(100%,400px);
	margin: 0 auto;
}
.technology_img img{
	width: 100%;
	height: 100%;
	object-fit: cover;
	object-position: 50% 50%;
	border-radius: clamp(20px,2vw,40px);
}
.technology_title{
	text-align: center;
	font-size: clamp(1.6rem,1.8vw,2.2rem);
	font-weight: 700;
	padding-top: clamp(10px,1.5vw,20px);
}
.technology_tx{
	text-align: center;
	padding-top: clamp(7px,1vw,15px);
}
/*動画再生ボタン*/
.hp_btn{
	width: min(95%,320px);
	margin: 12px auto 0;
	color: #fff;
	background-color: #1C4592;
	background: linear-gradient(270deg, #333 0%, #333 50px, #ffffff 50px,#ffffff 51px, #333 51px, #333 100%);
	font-weight: 700;
	border-radius: 10px;
}
.hp_btn a{
	display: block;
	width: 100%;
	padding: 7px 0 7px 20px;
	color: #fff;
	font-size: clamp(1.4rem,1.6vw,1.7rem);
}
.hp_btn a:hover{
	opacity: 1;
}
.hp_icon{
	position: relative;	
}
.hp_icon:before{
	content: '';
	display: inline-block;
	width: 18px;
	height: 18px;
	background-image: url("../images/group/icon.png");
	background-size: 18px;
	position: absolute;
	top: 10px;
	right: 16px;
	background-repeat: no-repeat;
	background-position: left center;
}
/*--------- お問い合わせ sp---------*/
.foot_contact{
    background-image: url("../images/bim/img_15.jpg");
    background-position: center center;
}

@media (min-width:768px){
/*--------- tab ---------*/
	main{
		background-position: left top;
		background-size: 130% auto;		
	}
	.title_inner h1{
		display: flex;
	}
	.main_text{
		padding-right: 30%;
	}
	/*----- 目標 tab -----*/
	.about_inner{
		display: flex;
		justify-content: center;
		align-items: center;
		padding-top: 50px;
	}
	
	.about_img{
		width: 40%;
	}
	.about_img img{
		width: min(270%,960px);
		max-height: 600px;
		top: -260px;
		left: auto;
		right: 10px;
	}
	.about_tx{
		width: 60%;
		padding-top: 0px;
	}
	.about_inner2{
		padding-top: 100px;
		display: flex;
		justify-content: center;
		align-items: center;
	}
	.about_img2{
		width: 40%;
		margin: 0;
		order: 2;
		position: relative;
		aspect-ratio: 105 / 62;
	}
	.about_img2 img{
		position: absolute;
		width: min(103%,700px);
		top: 0px;
		left: 30px;
	}
	.design_ban{
		border: 3px solid #333333;
		margin-top: 18px;
	}
	/*----- 事業内容 tab -----*/
	.service_inner{
		padding-top: 100px;
		display: flex;
		justify-content: space-between;
		align-items: center;
	}
	.service_tx{
		width: 100%;
	}
	.service_img{
		width: min(30%,698px);
		margin: 0;
	}
	.service_img img{
		width: min(200%,698px);
	}
	/*----- サービス1 tab -----*/
	.book_wrap{
		display: flex;
		justify-content: flex-start;
		flex-wrap: wrap;
	}
	.book{
		width: 33.3%;
	}
	.book_tx{
		padding-left: 15px;
		padding-right: 15px;
	}
	.service1_img{
		width: 100%;
	}
	.service1_img img{
		height: 260px;
	}
	/*----- 技術紹介 tab -----*/
	.technology{
		background-size: 20px auto;
		padding-right: 25px;
		padding-left: 25px;
	}
	.technology_wrap{
		display: flex;
		justify-content: space-around;
		flex-wrap: wrap;
	}
	.technology_box{
		width: min(48%,400px);
	}
}
@media (min-width:1024px){
/*--------- pc ---------*/
	/*----- 建築部の目標 pc -----*/
	.about_img{
		width: 50%;
		aspect-ratio: auto;
		height: 550px;
	}
	.about_img img{
		width: min(270%,960px);
		max-height: 678px;
		top: -180px;
		right: 10px;
	}
	.about_tx{
		width: min(50%,640px);
	}
	.about_inner2{
		padding-top: 50px;
	}
	.about_img2{
		width: 50%;
	}
	.about_img2 img{
    width: min(100%,1050px);
		top: 0px;
		left: 50px;
	}
	.design_ban{
		border: 5px solid #333333;
		margin-top: 20px;
	}
	/*----- サービス1 pc -----*/
	.service1_img{
		padding-bottom: clamp(18px,2vw,30px);
	}
	.service1_img img{
		height: 320px;
	}
	/*----- 技術紹介 pc -----*/
	.advantage_img img{	
		height: 400px;
	}
	/*----- 技術紹介 pc -----*/
	.technology{
		background-size: 25px auto;
		padding-right: 30px;
		padding-left: 30px;
	}
}
@media (min-width:1280px){
	main{
		background-position: left top;
		background-size: 110% auto;
	}	
	/*----- サービス1 1280 -----*/
	.service1_inner{
		display: flex;
		justify-content: space-between;
		align-items: flex-start;
	}
	.service1_img{
		width: min(37%,640px);
		margin: 0;
		order: 2;
		padding-top: 20px;
	}
	.service1_img img{
		height: auto;
		aspect-ratio: 640 / 500;
	}
	.service_tx1{
		width: 60%;
	}
	/*----- 技術紹介 1280 -----*/
	.advantage{
		position: relative;
	}
	.advantage_tx{	
		width: 59%;
	}
	.advantage_img{	
		width: min(43%,780px);
		position: absolute;
		top: 70px;
		right: -6%;
	}
	.advantage_img img{	
		height: auto;
		aspect-ratio: 750 / 450;
		border-bottom-right-radius: 0;
		border-top-right-radius: 0;
	}
	/*----- 技術紹介 1280 -----*/
	.technology{
		background-size: 31px auto;
	}
	.technology_wrap{
		justify-content: center;
	}
	.technology_box{
		width: min(30%,400px);
		margin: 0 1.5%; 
	}
	
}

@media (min-width:1480px){
	main{
		background-size: 100% auto;
	}
  .about_img2 img{
    width: min(45vw,850px);
	}
	/*----- 事業内容 1480 -----*/
	.service_inner{
    padding-top: 150px;
		justify-content: flex-start;
	}
	.service_tx{
		/*width: min(80%,1024px);*/
	}
	.service_img{
		width: min(20%,698px);
	}
	.service_img img{
		width: min(300%,698px);
	}
	
	/*----- サービス1 1480 -----*/
	.service1_img{
		width: 45%;
		text-align: right;
	}
	.service1_img img{
		width: min(90%,640px);
		
	}
	.service_tx1{
		width: 55%;
	}
	/*----- 技術紹介 1480 -----*/
	.advantage_tx{	
		width: 55%;
	}
	.advantage_img{	
		width: min(46.4%,780px);
		right: -6%;
	}
	.advantage_img img{	
		height: auto;
		aspect-ratio: 750 / 450;
		border-bottom-right-radius: 0;
		border-top-right-radius: 0;
	}
	
}
@media (min-width:1600px){
	/*----- サービス1 1600 -----*/
	.book_tx{
		font-size: 1.5rem;
	}
	/*----- 技術紹介 1600 -----*/
	.advantage{
		padding-bottom: 220px;
	}
}
@media (min-width:1700px){
	/*----- 事業内容 1700 -----*/
	.service_img{
		width: min(20%,698px);
		padding-left: 44px;
	}
	/*----- サービス1 1700 -----*/
	.service1_img{
		width: 46%;
		text-align: right;
		padding-right: 40px;
	}
	.service_tx1{
		width: 52%;
	}
	.book_tx{
		font-size: 1.6rem;
	}
	/*----- 技術紹介 1700 -----*/
	.advantage_tx{	
		width: 50%;
	}
	.advantage_img{	
		width: min(47.7%,780px);
		right: -6%;
	}
	.advantage_img img{	
		height: auto;
		aspect-ratio: 750 / 450;
		border-bottom-right-radius: 0;
		border-top-right-radius: 0;
	}
}