@charset "utf-8";
@import url(//use.fontawesome.com/releases/v5.7.2/css/all.css);
/*========= メインエリア ===============*/
#head {
  position: relative;
  margin: 0 auto;
  height: 120px;
  background-image: url(../images/second_head.svg);
  background-position: bottom;
  background-size: cover;
}

/* 用語集 */
.qa-3 {
  max-width: 1200px;
  margin: 0 auto 1em;
  border: none;
  border-radius: 5px;
  box-shadow: 0 4px 4px rgb(0 0 0 / 12%), 0 2px 3px -2px rgba(0 0 0 / 18%);
  background-color: #ffffff;
}

.qa-3 summary {
  display: flex;
  /* justify-content: space-between; */
  align-items: center;
  position: relative;
  padding: 0.3em 1em 0.3em 1em;
  color: #333333;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
}

.qa-3 summary::before,
.qa-3 p::before {
  position: absolute;
  left: 1em;
  font-weight: 600;
  font-size: 1.3em;
}
/* .qa-3 summary::after {
  transform: translateY(-25%) rotate(-45deg);
  width: 7px;
  height: 7px;
  margin-left: 10px;
  border-bottom: 3px solid #333333b3;
  border-right: 3px solid #333333b3;
  content: '';
  transition: transform .5s;
} */
.qa-3[open] summary::after {
  transform: rotate(45deg);
}
.qa-3 p {
  position: relative;
  transform: translateY(-10px);
  opacity: 0;
  margin: 0;
  padding: .3em 3em 1.5em;
  color: #333333;
  transition: transform .5s, opacity .5s;
}
.qa-3[open] p {
  transform: none;
  opacity: 1;
}
.qa-3[open] p span {
  color: #999;
}
@media screen and (max-width:768px){
  #head {
    height: 80px;
  }
}