summary {
  display: block;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

.page-contents,
.quiz-box-area {
  max-width: 1275px;
  width: calc(100% - 30px);
  margin: 0 auto;
  font-family: "Noto Sans JP", sans-serif
}

.quiz-flex {
  max-width: 1275px;
  display: flex;
  gap: 126px;
  margin: 0 auto;
  width: calc(100% - 30px);
  font-family: "Noto Sans JP", sans-serif;
  padding: 100px 0;
}

.side {
  max-width: 150px;
  width: 100%;
}

ul.side-menu {
  padding-left: 42px !important;
  border-left: 1px solid #7a7a7a;
}

.side-menu li {
  font-size: 18px;
  line-height: 50px;
  font-weight: 400;
}

.side-menu li.red {
  position: relative;
}

.side-menu li.red::before {
  content: "";
  width: 5px;
  height: 5px;
  background-color: #d40000;
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: -20%;
  transform: translate(-0, -50%);
  -webkit-transform: translate(-0, -50%);
  -ms-transform: translate(-50%, -50%);
}

.side-menu li.red a {
  color: #d40000 !important;
}

.side-menu li.gray a {
  color: #7a7a7a !important;
}

.side-menu li a {
  text-decoration: none;
}

.quiz-contents {
  width: 100%;
}

.quiz-contents h3 {
  font-size: 48px !important;
  font-weight: 400 !important;
  color: #000;
  background: linear-gradient(transparent 75%, #e3e7f5 75%);
  margin-bottom: 10px !important;
}

.quiz-contents span {
  font-size: 34px;
  line-height: 120%;
  color: #000;
  font-weight: 400;
  padding-left: 24px;
  position: relative;
}

.quiz-contents span.icon::after {
  content: "";
  display: block;
  width: 22px;
  height: 18px;
  background-image: url(/assets/image/jp/ja/company/group/hfd/60th/Quiz/tl-box-bg.png);
  background-size: cover;
  position: absolute;
  top: 20%;
  left: 98%;
  transform: translate(-0, -50%);
}


.quiz-box {
  padding: 15px;
  border-radius: 5px;
  background-color: #f4f5f9;
  margin-bottom: 26px;
}

.quiz-box .small {
  color: #d40000 !important;
  font-size: 12px;
  line-height: 100%;
  font-weight: 600;
  font-family: "Open Sans", sans-serif
}

.quiz-box h4 {
  margin: 15px 0 22px 0;
  text-align: center;
  font-size: 20px !important;
  line-height: 32px !important;
  font-weight: 500 !important;
}

.quiz-box-item {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin: 20px 0 0 0;
}

.problem {
  display: flex;
  padding: 10px;
  background-color: #a4a409;
  gap: 7px;
  align-items: center;
  border-radius: 5px;
}

.question {
  width: 17px;
  height: 17px;
  background-color: #fff;
  border-radius: 50%;
  display: inline-block;
  text-align: center;
  line-height: 17px;
  margin: 0;
  position: relative;
  flex: none;
}

.question span {
  font-size: 13px;
  color: #a4a409;
  position: static;
  padding: 0;
  font-weight: 500;
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  line-height: 100%;
}

.question-text {
  font-size: 16px;
  font-weight: 500;
  line-height: 100%;
  color: #fff;
}

.green {
  background-color: #0fa188;
}

.green-text {
  color: #0fa188 !important;
}

.blue {
  background-color: #154bb8;
}

.blue-text {
  color: #154bb8 !important;
}

.accordion-tbn {
  margin-top: -18px;
}

.accordion-text {
  margin-top: auto;
  display: inline-block;
  background-color: #fff;
  padding: 13px;
  max-width: 100px;
  width: 100%;
  margin-left: auto;
  border-radius: 60px;
  box-sizing: border-box;
  font-weight: 500;
  font-size: 12px;
  color: #d40000;
  line-height: 100%;
  font-family: "Open Sans", sans-serif;
  text-align: center;
}

.accordion-text::after {
  content: "";
  display: inline-block;
  background: url("/assets/image/jp/ja/company/group/hfd/60th/Quiz/answer-arrow-r.png")
    no-repeat center center;
  width: 10px;
  height: 6px;
  margin-left: 5px;
  vertical-align: middle;
}

details[open] summary.accordion-text {
  background-color: #d40000 !important;
  color: #fff !important;
}

details[open] summary.accordion-text::after {
  transform: rotate(180deg);
  background: url("/assets/image/jp/ja/company/group/hfd/60th/Quiz/answer-arrow-w.png")
    no-repeat !important;
}

.accordion-contents {
  background-color: #ffff;
  padding: 30px 0 25px 0;
  text-align: center;
  margin-top: 15px;
}

.answer-flex {
  display: flex;
  justify-content: center;
  gap: 15px;
  align-items: center;
  margin: 0 0 15px 0;
}

.answer-flex .red {
  font-size: 20px;
  font-weight: 500;
  line-height: 32px;
  color: #d40000;
}

.accordion-contents p {
  display: inline-block;
  text-align: left !important;
}

.max800 {
  max-width: 800px;
  margin: 0 auto;
}

.accordion-flex {
  display: flex;
  max-width: 800px;
  margin: 0 auto;
  gap: 20px;
}

.max560 {
  max-width: 560px;
}

.answer-flex-img {
  display: flex;
  gap: 10px;
}

.quiz-tl-flex {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
}



@media screen and (max-width: 767px) {
  .page-contents,
  .quiz-box-area {
    max-width: none;
    width: 100%;
  }
  .quiz-flex {
    padding: 50px 0 0 0;
    max-width: none;
    width: 100%;
    flex-direction: column;
    gap: 50px;
  }
  .quiz-box {
    margin-bottom: 0;
  }
  .quiz-contents h3 {
    font-size: 28px !important;
  }
  .quiz-contents span {
    font-size: 20px;
  }
  .quiz-box h4 {
    font-size: 18px !important;
    text-align: left;
  }
  .quiz-contents span {
    font-size: 14px !important;
  }
  .quiz-box-item {
    flex-direction: column;
  }
  .accordion-tbn {
    margin-top: 20px;
  }
  .answer-flex {
    flex-direction: column;
  }
  .problem {
    width: 100%;
  }
  .accordion-flex {
    flex-direction: column;
  }
  .accordion-contents {
    padding: 15px 4%;
  }

}

div#special .accordion-flex {
  justify-content: space-evenly;
  align-items: center;
}
.answer-flex-img > img {
  width: 100%;
}
.side .side-menu li a {
  white-space: nowrap;
}

.quiz-contents.--en .question-text {
  line-height: 130%;
}
.quiz-contents.--en h3 span {
  font-size: 20px;
}
.quiz-contents.--en span.icon::after {
  top: 10%;
}
.accordion-text {
  display: list-item;
  cursor: pointer;
}