@charset "UTF-8";
/* CSS Document */
html {
  font-size: 62.5%; /* 16px * 62.5% = 10px */
  width: 100%;
  
}

body {
  color: #333; /* RGB */
  font-weight: 500;
  font-size: 1.6em;
  line-height: 2.4rem;
  text-align: center;
  font-family: "Noto Serif", serif;
  font-optical-sizing: auto;
  font-style: normal;
  font-variation-settings:
    "wdth" 100;
}
section h2 {
  font-size: 2.4rem;
}
a {
  text-decoration: none;
color: #333;
}
a:hover {
  opacity: 0.5;
}
*, *:before, *:after {
  box-sizing: border-box;
}
/* header */
.header {
  height: 100px;
  width: 100%;
  background-color: #ffffff;
}
.header-image {
  height: 50px;
  position: absolute;
  left:20px;
  top: 25px;
}
/*Navigation*/
.open-button, .close-button {
  display: none;
}
@media (max-width:1160px) {
  .open-button {
    display: block;
    position: absolute;
    right: 10px;
    top: 35px;
    width: 40px;
    height: 40px;
    cursor: pointer;
  }
  .open-button span, .open-button span:before, .open-button span:after {
    position: absolute;
    height: 3px;
    width: 30px;
    border-radius: 3px;
    background: #333;
    display: block;
    content: "";
  }
  .open-button span:before {
    bottom: -8px;
  }
  .open-button span:after {
    bottom: -16px;
  }
  .close-button {
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    color: #333333;
    font-size: 20px;
    padding: 20px;
  }
  .header nav {
    display: none;
    z-index: 1000;
    position: fixed;
    top: 0;
    left: 0;
    background-color: #ffffff;
    width: 70%;
    height: 100%;
    padding-top: 67px;
    box-shadow: 10px 10px 25px rgba(0, 0, 0, 0.5)
  }
  .header nav ul li {
    border-bottom: solid 1px rgba(255, 255, 255, 0.5);
  }
  .header nav ul li:first-child {
    border-top: solid 1px rgba(255, 255, 255, 0.5);
  }
  .header nav ul a {
    font-weight: 600;
    line-height: 40px;
    vertical-align: middle;
    text-decoration: none;
    color: #333333;
  }
}
@media (min-width:1160px) {
  .header {
    height: 100px;
  }
  .header-content-wrapper {
    max-width: 1440px;
    margin: 0 auto;
    position: relative;
  }
  .header-image {
  left:50px;
}
  .header h1 {
    font-size: 2.8rem;
    padding: 10px 0 0 30px;
    position: absolute;
    left: 0;
    font-weight: 600;
  }
  .header nav {
    display: block;
    text-align: right;
  }
  .header nav ul {
    display: flex;
    justify-content: flex-end;
    padding: 0 50px;
  }
  .header nav li a {
    display: block;
    padding: 32px 15px;
    color: #333333;
    text-decoration: none;
    font-size: 2.8rem;
    height: 100px;
  }
}
.footer {
  min-height: 400px;
  max-width: 1440px;
  background-color: #ffffff;
  font-size: 2.8rem;
  color: #333;
  position: relative;
  margin: 0 auto;
}
.footer_line-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
}
.footer_line {
  width: 70%;
  border-top: solid 2px #333333;
}
.footer-site-map {
  display: flex;
  text-align: left;
  justify-content: space-between;
  padding: 50px 70px 0;
  font-size: 2.8rem;
  font-weight: 400;
}
.footer-site-map ul li {
  text-align: left;
}
.footer-site-map a {
  text-decoration: none;
  line-height: 40px;
}
.footer__sns-links {
  height: 70px;
  display: flex;
  justify-content: right;
}
.footer-logo {
  margin: 100px auto 0;
  width: 100%;
  position: absolute;
  padding-bottom: 20px;
  display: grid;
  justify-content: center;
}
.footer-logo img {
  margin: 0 auto;
  height: 50px;
  text-align: center;
}
.footer__copyright {
  margin: 0 auto;
  font-size: 1.2rem;
  padding-top: 15px;
  text-align: center;
}
@media (max-width: 750px) {
  .footer {
  min-height: 480px;
}
.footer-site-map {
height: 300px;
  padding: 70px 30px 0;
  font-size: 2.8rem;
  font-weight: 400;
}
.footer__copyright {
  font-size: 1rem;
}
  .footer-logo {
  margin: 70px auto 0;
}
}
/* return to top */
#scroll-top {
  background-color: #00582473;
  opacity: 1.8;
  bottom: 20px;
  padding: 10px;
  position: fixed;
  right: 20px;
}
#scroll-top a {
  text-decoration: none;
  color: #333;
}