@charset "utf-8";


ul {
    list-style: none;
}

a {
    text-decoration: none;
    outline: none;
    font-weight: bold;
    color: #000;
    padding: 15px 30px;
    border-radius: 15px;
    
}
a:hover {
  background-color: rgb(51, 49, 48);
  color: aliceblue;
}

.page {
    width: 100%;
    margin: 0 auto;
    border-bottom: 2ch;
    border-color: aqua;
}

header {
    width: 100;
    height: 80px;
    display: flex;
    align-items: center;
    
}
header > img {
	margin-left:0px;
}

header > h1 {
  margin: 0;
  margin-left:10px;
  margin-right: auto;
  font-weight: lighter;
  align-items: flex-start;
}

header > nav {
  margin-left: auto;
	width:600px;
	height:100%;
}

header ul {
	width:100%;
	height: 100%;
  margin: 0;
	display: flex;
	justify-content: space-between;
}

header ul > li {
	font-size:20px;
	height: 100%;
	display: flex;
	align-items: center;
}

.image-box {
  width: auto;
  height: 500px; 
  position: relative;
}

.image-box::before{
  content: "";
  background-color: #000;
  background-size: cover;
  opacity: 0.5;
  position: absolute;
  top: 0px;
  left: 0px;
  right: 0px;
  bottom: 0px;
}
.image-box h1{
  color: rgb(255, 255, 255);
  text-align: center;
  line-height: 100px;  
  position: absolute;
  margin-left: 100px;
}
.image-box .img{
  width: 100%;
  height: 500px; 
}
.content-box {
  margin-top: 50px;
  margin-left: 50px;
}
.company-box{
  clear:left;
  margin-top: 100px;
  margin-left: 50px;

}
.company-box .underline{
  width: 100%;
  border-bottom: thick double black;  
}
.company-box li{
  margin-bottom: 10px;
  font-weight: bold;
}

.fl {float: left;}
.w120 {width: 120px;}
.list_square {list-style: square;}