@charset "utf-8";

#externalMain {
  background-color: #eff4f7;
}

#externalMain .container {
  margin: 0 auto;
  min-height: 100vh;
}

#externalMain h2 {
  margin: 80px auto 70px;
  padding-left: 30px;
  font-size: 30px;
  text-align: center;
  line-height: 26px;
}

#externalMain h2 img {
  width: 25px;
  height: 25px;
}

@media screen and (max-width: 896px) {
  #externalMain h2 {
    margin: 24px 22px;
    font-size: 2.2rem;
    text-align: left;
  }

  #externalMain h2 img {
    width: 20px;
    height: 17px;
  }
}

#externalMain .explanation-area {
  margin: 0 auto 100px;
  width: 1000px;
  padding: 80px 100px 100px;
  background-color: #fff;
}

@media screen and (max-width: 896px) {
  #externalMain .explanation-area {
    width: 90%;
    margin: 25px auto;
    padding: 25px 24px;
  }
}

#externalMain section {
  max-width: 1000px;
  min-height: 320px;
  margin: 0 auto 80px;
}

@media screen and (max-width: 896px) {
  #externalMain section {
    min-height: 180px;
    margin: 0 auto 60px;
  }
}

#externalMain .explanation {
  padding: 46px 0;
  border-bottom: .5px solid #c9caca;
}

#externalMain .explanation:first-child {
  border-top: .5px solid #c9caca;
}

#externalMain h4 {
  margin-bottom: 32px;
  font-size: 24px;
  line-height: 1;
}

@media screen and (max-width: 896px) {
  #externalMain h4 {
    margin-bottom: 20px;
    font-size: 18px;
  }
}

#externalMain h4.decimal {
  position: relative;
}

#externalMain h4.decimal span {
  display: inline-block;
  text-align: center;
  width: 24px;
  height: 24px;
  margin-right: 6px;
  color: #fff;
  background-color: #53a5d6;
  border-radius: 50%;
}

@media screen and (max-width: 896px) {
  #externalMain h4.decimal span {
   width: 20px;
   height: 20px;
  }
}

#externalMain strong {
  display: block;
  margin-bottom: 14px;
}

@media screen and (max-width:896px) {
  #externalMain strong {
    margin-bottom:10px;
    font-size:14px;
  }
}

#externalMain p {
  line-height: 1.5;
}

@media screen and (max-width:896px) {
  #externalMain p {
    font-size: 14px;
  }
}

.image-area .image-caption {
  display: block;
  margin-bottom: 28px;
  font-size: 15px;
  font-weight: 700;
}

.image-area .image-text {
  margin-bottom: 46px;
}

.image-wrap {
  position: relative;
}

.image-wrap .i-grass {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 30px;
  height: 30px;
  text-align: center;
  line-height: 30px;
  background-color: hsla(0,0%,100%,.5);
  cursor: pointer;
}

.image-wrap .i-grass img {
  width: 15px;
  height: 15px;
}

.details-image {
  margin-top: 46px;
}

.details-image:first-child {
  margin-top: 0;
}

.bottomImage {
  margin-top: 46px;
}

.pointExplanation {
  padding: 46px 0;
  border-bottom: .5px dashed #c9caca;
}

.pointExplanation:last-child {
  border-bottom: none;
  padding: 46px 0 0;
}

.pointExplanation .caption {
  margin-bottom: 16px;
  font-size: 15px;
}

.pointExplanation .caption span {
  margin-right: 10px;
  font-size: 24px;
}

.related-article {
  width: 800px;
  padding: 46px;
  background-color: #f5f5f5;
  border-radius: 5px;
}

.related-article li {
  margin-top: 10px;
}

.related-article li a {
  color: #231815;
}

.related-article li a:hover {
  color: #53a5d6;
}

@media screen and (max-width: 896px) {
  .related-article {
    width: 100%;
    margin: 50px auto;
    padding: 18px 24px;
    font-size: 14px;
  }
}

.induction-area {
  text-align: center;
}

.induction-area a {
  margin-right: 15px;
  color: #231815;
}

.induction-area a:last-child {
  margin-right: 0;
}

.induction-area a img {
  width: 16px;
}

@media screen and (max-width: 896px) {
  .induction-area a {
    font-size: 11px;
  }
}

.explanation {
  padding: 46px 0;
  border-bottom: .5px solid #c9caca;
}

.explanation:first-child {
  border-top: .5px solid #c9caca;
}

@media screen and (max-width: 896px) {
  .explanation {
    padding: 46px 0;
  }
}