.faq {
  color: #432211;
  padding-bottom: 8vw;
  padding-top: 8vw;
}

.faq__inner.inner {
  margin-left: auto;
  margin-right: auto;
  width: 95%;
}

.section-title.faq__title {
  word-wrap: anywhere;
  font-size: 5.3760000003rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  line-height: 1.4347826087;
  margin-bottom: 3.4666666667vw;
  position: relative;
  text-align: center;
  word-break: keep-all;
}

.section-title.faq__title::after {
  -webkit-mask-image: url(../img/top/title-decoration.svg);
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-size: cover;
  -webkit-mask-position: 50% 50%;
  aspect-ratio: 85.55/10;
  background-color: #a52226;
  bottom: -3.4666666667vw;
  content: "";
  left: 50%;
  mask-image: url(../img/top/title-decoration.svg);
  mask-position: 50% 50%;
  mask-repeat: no-repeat;
  mask-size: cover;
  position: absolute;
  transform: translateX(-50%);
  width: 22.8133333333vw;
}

.faq__items {
  grid-row-gap: 5.3333333333vw;
  display: grid;
  grid-template-columns: 1fr;
  justify-content: center;
  margin-top: 8.8vw;
  row-gap: 5.3333333333vw;
}

.faq-item {
  background-image: -webkit-image-set(
    url(../img/top/faq-item-bg-sp.webp) type("image/webp"),
    url(../img/top/faq-item-bg-sp.png) type("image/png")
  );
  background-image: image-set(
    url(../img/top/faq-item-bg-sp.webp) type("image/webp"),
    url(../img/top/faq-item-bg-sp.png) type("image/png")
  );
  background-position: 0% 0%;
  background-repeat: no-repeat;
  background-size: cover;
  border-radius: 0 50px 0 50px;
}

.faq-item__details {
  position: relative;
}

.faq-item__details::after {
  background: linear-gradient(
    180deg,
    transparent 0,
    transparent 14.1333333333vw,
    #a52226 14.1333333333vw,
    #a52226 calc(100% - 11.2vw),
    transparent calc(100% - 11.2vw),
    transparent 100%
  );
  bottom: 0;
  content: "";
  height: 0;
  left: 6.4vw;
  position: absolute;
  width: 1.5px;
}

.faq-item__details.is-opened::after {
  border-radius: 100vmax;
  height: 100%;
}

summary {
  display: block;
}

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

.faq-item__summary {
  cursor: pointer;
}

.faq-item__summary-wrapper {
  color: #a52226;
  display: flex;
  font-weight: 600;
  gap: 5.0666666667vw;
  line-height: 1;
  padding: 4.5333333333vw 7.2vw 9.0666666667vw 4.5333333333vw;
  transition: 0.3s padding;
}

details.is-opened .faq-item__summary-wrapper {
  padding: 4.5333333333vw 7.2vw 4.5333333333vw 4.5333333333vw;
}

.faq-item__number {
  display: flex;
  flex-shrink: 0;
  gap: 1.0666666667vw;
}

.faq-item__number .eng {
  font-size: 3.8400000002rem;
  margin-top: 0.5333333333vw;
}

.faq-item__number .number {
  display: inline-block;
  font-size: 5.3760000003rem;
  letter-spacing: -0.1em;
}

.faq-item__title {
  text-wrap: initial;
  word-wrap: anywhere;
  font-size: 4.6080000003rem;
  letter-spacing: 0.05em;
  line-height: 1.3529411765;
  margin-top: 2.1333333333vw;
  word-break: keep-all;
}

.faq-item__icon {
  aspect-ratio: 1;
  background-color: #a52226;
  bottom: 0;
  position: absolute;
  right: 0;
  width: 5.3333333333vw;
  z-index: 2;
}

.faq-item__icon .before,
.faq-item__icon .after {
  background-color: #fff;
  display: inline-block;
  height: 2px;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 2.1333333333vw;
}

.faq-item__icon .after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: 0.3s transform;
}

details.is-opened .faq-item__icon .after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.faq-item__content {
  overflow: hidden;
}

.faq-item__answer {
  font-size: 3.8400000002rem;
  font-weight: 400;
  letter-spacing: 0.025em;
  line-height: 1.6;
  padding: 0 5.3333333333vw 11.2vw 12vw;
}

@media screen and (min-width: 768px) {
  .faq {
    padding-bottom: 3.1478770132vw;
    padding-top: 2.7086383602vw;
  }

  .faq__inner.inner {
    width: 83.3%;
  }

  .section-title.faq__title {
    font-size: 2.5300146415rem;
    margin-bottom: 0.9516837482vw;
  }

  .section-title.faq__title::after {
    bottom: -0.9516837482vw;
    width: 6.2628111274vw;
  }

  .faq__items {
    margin-top: 3.513909224vw;
    row-gap: 0.9516837482vw;
  }

  .faq-item {
    background-image: -webkit-image-set(
      url(../img/top/faq-item-bg-pc.webp) type("image/webp"),
      url(../img/top/faq-item-bg-pc.png) type("image/png")
    );
    background-image: image-set(
      url(../img/top/faq-item-bg-pc.webp) type("image/webp"),
      url(../img/top/faq-item-bg-pc.png) type("image/png")
    );
  }

  .faq-item__details::after {
    background: linear-gradient(
      180deg,
      transparent 0,
      transparent 3.8799414348vw,
      #a52226 3.8799414348vw,
      #a52226 calc(100% - 1.756954612vw),
      transparent calc(100% - 1.756954612vw),
      transparent 100%
    );
    left: 5.0512445095vw;
  }

  .faq-item__summary-wrapper {
    gap: 1.3909224012vw;
    padding: 0.9516837482vw 1.9765739385vw 2.9282576867vw 4.6852122987vw;
  }

  details.is-opened .faq-item__summary-wrapper {
    padding: 0.9516837482vw 1.9765739385vw 0.9516837482vw 4.6852122987vw;
  }

  .faq-item__number {
    gap: 0.6588579795vw;
  }

  .faq-item__number .eng {
    font-size: 1.8975109811rem;
    margin-top: 0.8052708638vw;
  }

  .faq-item__number .number {
    font-size: 3.3733528553rem;
  }

  .faq-item__title {
    font-size: 1.8975109811rem;
    margin-top: 0.5856515373vw;
  }

  .faq-item__icon {
    width: 2.2693997072vw;
  }

  .faq-item__icon .before,
  .faq-item__icon .after {
    width: 0.9516837482vw;
  }

  .faq-item__answer {
    font-size: 1.6866764276rem;
    line-height: 1.6875;
    padding: 0 2.9282576867vw 3.2942898975vw 6.6617862372vw;
  }
}