@charset "UTF-8";
/* CSS Document */

* { box-sizing: border-box; }

body {
  color: #222;
  font-family: 'ヒラギノ角ゴ Pro', 'Hiragino Kaku Gothic Pro','メイリオ', 'Meiryo', '游ゴシック', 'Yu Gothic', 'ＭＳ Ｐゴシック', 'MS PGothic', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  position: relative;	
  background: #fcfcfc;
}


/* header */

header {
  width: 100%;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(15px);
  background-color: rgba(255,255,255, 0.8);
  border-bottom: 1px solid #fff;
  position: fixed;
  z-index: 50;
}

.header_area {
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.toTop a {
  display: block;
  color: #2F3640;
  border: 2px solid #2F3640;
  padding: 15px 10px;
  line-height: 0;
  border-radius: 30px;
  text-decoration: none;
  transition: 0.3s;
  font-size: 14px;
}

.toTop a:visited { color: #2F3640; }

.toTop a:hover {
  color: #fcfcfc;
  background: #2F3640;
}

@media screen and (max-width: 896px) {

  .header_area {
    max-width: 756px;
    width: 95%;
    padding: 10px;
  }
  .toTop a {
    border: 1px solid #2F3640;
    font-size: 13px;
  }
  
  .header_area img {
    display: block;
    height: 16px;
    width: auto;
  }
  
}




/* main */


article {
  width: 95%;
  max-width: 960px;
  margin: 0 auto;
  padding: 105px 0 30px;
}

h3 {
  color: #2F3640;
  font-size: 24px;
  line-height: 1.2;
  text-align: center;
  margin: 30px 0;
}

section img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto 100px;
}


/** tab manu */

.tab{
  display:flex;
  flex-wrap:wrap;
}

.tab li a{
  display:flex;
  background-color:#FCFCFC;
  border:2px solid #2f3640;
  border-radius: 3px;
  margin-right:10px;
  justify-content: center;
  align-items: center;
  color:#2f3640;
  letter-spacing: 0px;
  text-decoration: none;
  padding: 10px 15px;
  font-size: 20px;
  font-weight: bold;
  line-height: 1;
  /*width:151px;
  height:55px;
  font:normal normal normal 30px/37px Hiragino Sans;*/
}

.tab li a.active{
  background-color:#2f3640;
  color:#FCFCFC;
}

.area{
  display:none;
}

.area.active{
  display:block;
}




@media screen and (max-width: 896px) {
  
  article {
    max-width: 756px;
    padding: 70px 0 30px;
  }
  
  h3 {
    font-size: 18px;
    margin: 15px 0;
  }

  section img { margin: 0 0 50px; }
  
  .tab li a{
    padding: 5px 10px;
    font-size: 16px;
  }
  
}