header{width: 90%;padding: 5%;}
body{background: #1cc7e1;}
/*
* {
  list-style: none;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}*/

/* アコーディオンメニュー全体のサイズ・位置 */
.ac {
  width: 100%;
  margin: 0 auto;
}

/* クリック領域 */
.ac-parent {
  height: 50px;
  border-bottom: 1px solid #fff;
  background-color: white;
  color: black;
  font-weight: bold;
  margin-top: 1.5em;
  text-align: center;
  line-height: 50px;
  cursor: pointer;
}

/* クリックしたら表示される領域 */
.ac-child {
  display: none;
  padding: 2em 1em;
  color: black;
  background-color: white;
  text-align: center;
}

.faq-inner{margin-top: 3em; margin-bottom: 3em;}


.button2{color: white;
    display: block;
    position: relative;
    font-family: "Noto Sans JP", sans-serif;
    font-weight: 500;
    width: 276px;
    font-weight: bold;
    line-height: 64px;
    text-align: center;
    background: linear-gradient(
117deg
, rgba(255, 255, 255, 0.57) 0%, rgba(255, 255, 255, 0.09) 100%);
    -webkit-box-shadow: -5px -5px 15px 0px rgb(255 255 255 / 56%), -3px -3px 20px 0px rgb(255 255 255 / 76%), 5px 5px 12px 0 rgb(90 125 136 / 16%), 3px 3px 24px 0 rgb(90 125 136 / 32%);
    box-shadow: -5px -5px 15px 0px rgb(255 255 255 / 56%), -3px -3px 20px 0px rgb(255 255 255 / 76%), 5px 5px 12px 0 rgb(90 125 136 / 16%), 3px 3px 24px 0 rgb(90 125 136 / 32%);
    border-radius: 64px;
    height: 64px;
    padding: 1px;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;}
.card-content{width: 80%;margin: 5% auto;}
  

/* スマホの幅の場合に適応される */
@media screen and (max-width: 768px) {
    .twocloumn {display: block;}
    .threecolumn {display: block;}
    img{ width: 100%; }
    video{ width: 100%; }
    .threecolumn .item{margin-bottom: 2em;}
    .button2{margin: 0 auto;}

header {
    padding-top: 100px;
}
.card-content {
    width: 90%;
}
.width20 {
    width: auto;
}
.width80 {
    width: 90%;
}
.a{padding: 1em;}
}

dd {
    margin-inline-start: 0px;
}

.floating-button {position: fixed; bottom: 2em; left: 5%; width: 90%;}
.button3{color: #1c9dc9;
    display: block;
    position: relative;
    font-family: "Noto Sans JP", sans-serif;
    font-weight: 500;
    width: 276px;
    font-weight: bold;
    line-height: 64px;
    text-align: center;
    background: linear-gradient(
117deg
, rgba(255, 255, 255, 1.0) 0%, rgba(255, 255, 255, 1.0) 100%);
    -webkit-box-shadow: -5px -5px 15px 0px rgb(255 255 255 / 56%), -3px -3px 20px 0px rgb(255 255 255 / 76%), 5px 5px 12px 0 rgb(90 125 136 / 16%), 3px 3px 24px 0 rgb(90 125 136 / 32%);
    box-shadow: -5px -5px 15px 0px rgb(255 255 255 / 56%), -3px -3px 20px 0px rgb(255 255 255 / 76%), 5px 5px 12px 0 rgb(90 125 136 / 16%), 3px 3px 24px 0 rgb(90 125 136 / 32%);
    border-radius: 64px;
    height: 64px;
    padding: 1px;
    -webkit-transition: all 0.3s ease;
    transition: all 0.3s ease;}