@charset "utf-8";

body {
  background: #081126;
}

img {
  display: block;
  width: 100%;
}

header {
  height: 18vw;
  padding: 4% 0 0;
  background: url("../img/liver/hd_bg.jpg") center top no-repeat;
  background-size: 100% auto;
}

header h1 {
  position: relative;
  width: 32%;
  min-width: 330px;
  margin: 0 auto;
}
header h1 span {
  position: absolute;
  bottom: 0;
  left: 103%;
  display: block;
  width: 10em;
  font-size: 10px;
  color: #fff;
}
header h2 {
  width: 75%;
  margin: 5% auto 0;
}

@media only screen and (max-width:1100px) {
  header h2 {
    margin: 4.75% auto 0;
  }
}

@media only screen and (max-width:1000px) {
  header h2 {
    margin: 4.25% auto 0;
  }
}

@media only screen and (max-width:900px) {
  header h2 {
    margin: 3.75% auto 0;
  }
}

@media only screen and (max-width:800px) {
  header {
    height: 61vw;
    padding: 10% 0 0;
    background: url("../img/liver/hd_bg_sp.jpg") center top no-repeat;
    background-size: 100% auto;
  }
  header h1 {
    width: 84%;
    min-width: 84%;
  }
  header h1 span {
    position: relative;
    bottom: 0;
    left: 0;
    display: block;
    width: 100%;
    margin: 3% 0 0;
    text-align: center;
  }
  header h2 {
    width: 88%;
    margin: 12% auto 0;
  }
}

@media only screen and (max-width:700px) {
  header {
    height: 60vw;
  }
}

@media only screen and (max-width:600px) {
  header {
    height: 59vw;
  }
}

@media only screen and (max-width:420px) {
  header {
    height: 58vw;
  }
}

article {
  padding: 80px 0;
  color: #fff;
  font-family: 'Noto Sans JP', sans-serif;
  background: url("../img/liver/bg.jpg") center center no-repeat;
  background-size: cover;
  background-attachment: fixed;
}

article .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

article .card {
  width: 30%;
  margin: 5% 0;
  text-align: center;
}

article .card h3 {
  font-size: 24px;
}

article .card h4 {
  font-size: 17px;
}

article .card a {
  display: block;
  margin: 3% 0;
  border: 3px solid #0071BC;
  transition: .25s;
}
article .card a:hover {
  border: 3px solid #C7161D;
}

@media only screen and (max-width:1000px) {
  article .card h3 {
    font-size: 22px;
  }

  article .card h4 {
    font-size: 15px;
  }
}

@media only screen and (max-width:800px) {
  article {
    padding: 60px 0;
    background-attachment: scroll;
  }
  article .card {
    width: 45%;
    margin: 5% 0;
  }
  article .card h3 {
    font-size: 4.5vw;
  }

  article .card h4 {
    font-size: 3vw;
  }
}

@media only screen and (max-width:600px) {
  article {
    padding: 40px 0;
  }
  article .card {
    margin: 6% 0;
  }
  article .card h3 {
    font-size: 4vw;
  }

  article .card h4 {
    font-size: 2.5vw;
  }
}

.backtop {
  display: block;
  width: 240px;
  height: 50px;
  margin: 50px auto 0;
  line-height: 50px;
  text-align: center;
  font-size: 20px;
  color: #fff;
  text-decoration: none;
  border: 1px solid #fff;
  transition: .25s;
}
.backtop:hover {
  color: #C7161D;
  border: 1px solid #C7161D;
}