@charset "utf-8";
body {
	margin: 0;
	padding: 0;
	background-color: #000;
	font-family: serif;
}

html {
	margin: 0;
	padding: 0;
}

/*sec01*/
.sec01 { 
	position: fixed;
	top: 0;
	right: 0;
	margin-right: 10px;	
	z-index: 10;
}

.nav {
	margin: 10;
	padding: 10;
	border-left: thick solid green;
	padding-left: 1px;
	border-width: 2px;          /*線の太さ*/
}

.nav_list {
	list-style: none;           /*リストの黒点を非表示*/
}


.sec01 a {
	text-decoration: none;	/*aタグの下線を消す*/
	font-size: 2vw;
	color: green;
}

/*sec2*/
.sec02 {
	height: 100vh;
	display: flex;
	justify-content: center;
	align-items: center;
}
.sec02 p {
	height: 78px;
	font-size: 5vw;
	text-align: center;
	color: white;
}

.arrow {
	position: absolute;
	bottom: 30px;
	left: 50%;
	margin-left: -12px;
}

span {
	position: absolute;
	top: 0;
	width: 50px;
	height: 50px;
	border-left: 2px solid white;
	border-bottom: 2px solid white;
	transform: rotate(-45deg);
	animation: sdb 3s infinite;
	opacity: 0;
	box-sizing: border-box;
}
span:nth-of-type(1) {
	animation-delay: 0s;
}
span:nth-of-type(2) {
	top: 50%;
	animation-delay: .2s;
}
span:nth-of-type(3) {
	top: 100%;
	animation-delay: .4s;
}
@keyframes sdb {
	0% {
		opacity: 0;
	}
	50% {
		opacity: 1;
	}
	100% {
		opacity: 0;
	}
}
/* .sect02{
		padding-top:100px;
}
.sect02 div {
	margin: 60px 0;
	text-align: center;

}
.sect02 p {
	margin: 40px 0;
	text-align: center;
} */



.background-img {
	width: 100%;
	margin: 0;
	padding: 0;
}
  
.building-cell {
	width: 100%;
	position: relative;
}

.name-left {
	top: 5%;
	left: 5%;
	margin: 0;
	padding: 0;
	position: absolute;
	transform: translate(-50%, -50%);
	font-size: 5vw;	/*文章が画面全体の10%に収まる大きさに設定*/
	color: white;
}

.name-right {
	top: 5%;
	right: 5%;
	margin: 0;
	padding: 0;
	position: absolute;
	transform: translate(-50%, -50%);
	font-size: 5vw;	/*文章が画面全体の10%に収まる大きさに設定*/
	color: white;
}

.content-left {
	position: absolute;
	top: 15%;
	left: 7%;
	transform: translate(-50%, -50%);
	margin: 1% 2%;
	padding: 1% 2%;
	font-size: 4vw;	/*文章が画面全体の10%に収まる大きさに設定*/
	color: white;
	background-color: rgba(150, 150, 150, 0.5);
}

.content-right {
	position: absolute;
	top: 15%;
	right: 7%;
	transform: translate(-50%, -50%);
	margin: 1% 2%;
	padding: 1% 2%;
	font-size: 4vw;	/*文章が画面全体の10%に収まる大きさに設定*/
	color: white;
	background-color: rgba(150, 150, 150, 0.5);
}