/* FAQ */
/* FAQ Wrapper - 2カラムレイアウト */
.faq-wrapper {
  display: flex;
  gap: 60px;
  align-items: flex-start;
}

/* 左サイドメニュー - Sticky */
.faq-nav {
  width: 220px;
  flex-shrink: 0;
  position: sticky;
  top: 120px;
}

.faq-nav ul {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.faq-nav li a {
  display: flex;
  align-items: center;
  padding: 3px 10px 3px 15px;
  background: var(--color-darkgray);
  color: var(--color-white);
  font-size: 1em;
  font-weight: 500;
  transition: var(--transition);
}

.faq-nav li a::after {
  content: '';
  width: 10px;
  height: 10px;
  border-top: solid 1px var(--color-white);
  border-right: solid 1px var(--color-white);
  transform: rotate(45deg);
  margin-left: auto;
  transition: var(--transition);
}

.faq-nav li a:hover,
.faq-nav li a.active {
  background: var(--color-blue);
}

/* 右FAQメインコンテンツ */
.faq-main {
  flex: 1;
  min-width: 0;
  border-left: 1px solid var(--color-darkgray);
  padding: 0 30px 0 50px;
  margin-top: 0;
}

/* FAQセクション */
.faq-section {
  margin-bottom: 120px;
}

.faq-section:last-child {
  margin-bottom: 0;
}

.faq-section h2 {
  font-size: 2em;
  margin-bottom: 45px;
}

/* FAQ アコーディオン */
.faq-section .faq-item {
  border: none;
  border-radius: 0;
  overflow: visible;
  background: var(--color-lightgray);
  padding: 0 20px 10px;
}

.faq-section .faq-item dt {
  font-size: 1.4em;
  font-weight: 500;
  padding: 20px 50px 10px 45px;
  background: transparent;
  cursor: pointer;
  border-bottom: 1px solid transparent;
  position: relative;
}

.faq-section .faq-item.open dt {
  border-bottom: 1px solid var(--color-darkgray);
}

.faq-section .faq-item dt::before {
  content: 'Q';
  font-family: "Geologica", sans-serif;
  font-size: 2em;
  font-weight: 600;
  color: var(--color-blue);
  position: absolute;
  left: 0;
  top: 55%;
  transform: translateY(-50%);
}

.faq-section .faq-item dd {
  position: relative;
  font-size: 1.2em;
  font-weight: 400;
  padding: 30px 46px 40px;
  background: transparent;
  display: none;
  line-height: 2;
}

.faq-section .faq-item dd a {
  color: var(--color-blue);
  text-decoration: underline;
}

.faq-section .faq-item dd a:hover {
  text-decoration: none;
}

/* 開閉アイコン */
.faq-section .faq-item dt::after {
  content: '';
  width: 12px;
  height: 12px;
  background: none;
  border-top: solid 3px var(--color-blue);
  border-right: solid 3px var(--color-blue);
  clip-path: none;
  position: absolute;
  top: 55%;
  right: 10px;
  translate: 0 -70%;
  rotate: 135deg;
  transition: var(--transition);
}

.faq-section .faq-item.open dt::after {
  rotate: -45deg;
  translate: 0 -30%;
}


/* レスポンシブ */
@media (max-width: 920px) {
  .faq-wrapper {
    gap: 40px;
  }

  .faq-nav {
    width: 190px;
  }

  .faq-nav li a {
    font-size: 0.9em;
  }

  .faq-main {
    padding: 0 10px 0 30px;
  }
}

@media (max-width: 720px) {
  .faq-wrapper {
    flex-direction: column;
    gap: 70px;
  }

  .faq-nav {
    width: 100%;
    position: static;
  }

  .faq-nav ul {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px;
  }

  .faq-nav li {
    flex: 1 1 calc(50% - 5px);
  }

  .faq-nav li a {
    padding: 12px 15px;
    font-size: 0.9em;
    justify-content: center;
    text-align: center;
    border-bottom: none;
  }

  .faq-nav li a::after {
    display: none;
  }

  .faq-main {
    padding: 0;
    border: none;
  }

  .faq-section {
    margin-bottom: 60px;
  }
}

@media (max-width: 520px) {
  .faq-nav li {
    flex: 1 1 100%;
  }

  .faq-section h2 {
    font-size: 1.5em;
    margin-bottom: 30px;
  }

  .faq-section .faq-item {
    padding: 0 15px 8px;
  }

  .faq-section .faq-item dt {
    font-size: 1.1em;
    padding: 15px 30px 8px 30px;
    line-height: 1.4;
  }

  .faq-section .faq-item dt::before {
    font-size: 1.8em;
  }

  .faq-section .faq-item dt::after {
    width: 10px;
    height: 10px;
    border-width: 2px;
    right: 5px;
  }

  .faq-section .faq-item dd {
    font-size: 1em;
    padding: 10px 10px 15px 30px;
    line-height: 1.8;
  }
}