/* ========================================
   Q&A Page
======================================== */

.qa-page {
  width: 100%;
}


/* ========================================
   Q&A Introduction
======================================== */

.qa-intro {
  padding:
    54px
    0;

  background-color: var(--color-bg-sub);
}

.qa-intro__inner {
  display: grid;

  grid-template-columns:
    minmax(0, 1fr)
    minmax(0, 1.5fr)
    auto;

  align-items: center;

  gap: 64px;
}


/* ========================================
   Introduction Heading
======================================== */

.qa-intro__title {
  margin: 0;

  color: var(--color-main);

  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 400;

  line-height: 1.8;
  letter-spacing: 0.08em;
}


/* ========================================
   Introduction Text
======================================== */

.qa-intro__text {
  margin: 0;

  color: var(--color-text-sub);

  font-size: 12px;

  line-height: 2;
  letter-spacing: 0.03em;
}


/* ========================================
   Introduction Link
======================================== */

.qa-intro__link-area {
  align-self: center;
}

.qa-intro__link {
  position: relative;

  display: inline-flex;
  align-items: center;

  gap: 28px;

  padding-bottom: 8px;

  color: var(--color-main);

  font-size: 12px;

  letter-spacing: 0.04em;

  opacity: 1;
}

.qa-intro__link:visited {
  color: var(--color-main);
}

.qa-intro__link::after {
  content: "";

  position: absolute;

  right: 0;
  bottom: 0;
  left: 0;

  height: 1px;

  background-color: var(--color-main);

  transform: scaleX(1);
  transform-origin: right center;

  transition: transform 0.35s ease;
}

.qa-intro__link:hover {
  color: var(--color-main);

  opacity: 1;
}

.qa-intro__link:hover::after {
  transform: scaleX(0);
}

.qa-intro__arrow {
  flex-shrink: 0;

  font-size: 14px;

  transition: transform var(--transition-base);
}

.qa-intro__link:hover .qa-intro__arrow {
  transform: translateX(5px);
}


/* ========================================
   Q&A List
======================================== */

.qa-list {
  padding:
    88px
    0
    100px;

  background-color: var(--color-bg);
}

.qa-list__inner {
  max-width: 1120px;
}


/* ========================================
   Q&A Category
======================================== */

.qa-category {
  display: grid;

  grid-template-columns:
    280px
    minmax(0, 1fr);

  border:
    1px
    solid
    var(--color-border);
}

.qa-category + .qa-category {
  margin-top: 22px;
}


/* ========================================
   Category Heading
======================================== */

.qa-category__heading {
  display: flex;
  align-items: center;

  gap: 22px;

  padding:
    34px
    28px;

  border-right:
    1px
    solid
    var(--color-border);
}

.qa-category__icon {
  flex-shrink: 0;

  display: block;

  width: 48px;
  height: 48px;

  object-fit: contain;
}

.qa-category__heading-text {
  min-width: 0;
}

.qa-category__title {
  margin: 0;

  color: var(--color-main);

  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 400;

  line-height: 1.6;
  letter-spacing: 0.05em;

  white-space: nowrap;
}

.qa-category__en {
  margin:
    5px
    0
    0;

  color: var(--color-text-sub);

  font-family: var(--font-heading);
  font-size: 9px;

  line-height: 1.5;
  letter-spacing: 0.04em;
}


/* ========================================
   Category Questions
======================================== */

.qa-category__questions {
  min-width: 0;
}


/* ========================================
   Q&A Item
======================================== */

.qa-item {
  position: relative;

  margin: 0;

  border: 0;
}

.qa-item + .qa-item {
  border-top:
    1px
    solid
    var(--color-border);
}


/* ========================================
   Active Line
======================================== */

.qa-item::before {
  content: "";

  position: absolute;

  top: 0;
  bottom: 0;
  left: 0;

  z-index: 2;

  width: 2px;

  background-color: var(--color-main);

  opacity: 0;

  transform: scaleY(0.75);

  transform-origin: center;

  transition:
    opacity 0.35s ease,
    transform 0.42s ease;

  pointer-events: none;
}

.qa-item.is-active::before {
  opacity: 1;

  transform: scaleY(1);
}


/* ========================================
   Question
======================================== */

.qa-item__question {
  position: relative;

  display: flex;
  align-items: center;
  justify-content: space-between;

  gap: 30px;

  min-height: 58px;

  padding:
    18px
    26px;

  color: var(--color-heading);

  font-family: var(--font-heading);
  font-size: 13px;

  line-height: 1.7;
  letter-spacing: 0.04em;

  cursor: pointer;

  list-style: none;

  transition:
    color 0.35s ease;
}

.qa-item__question::-webkit-details-marker {
  display: none;
}

.qa-item__question::marker {
  content: "";
}


/* ========================================
   Plus / Minus
======================================== */

.qa-item__icon {
  position: relative;

  flex-shrink: 0;

  display: block;

  width: 14px;
  height: 14px;
}

.qa-item__icon::before,
.qa-item__icon::after {
  content: "";

  position: absolute;

  top: 50%;
  left: 50%;

  width: 12px;
  height: 1px;

  background-color: var(--color-main);

  transform:
    translate(-50%, -50%);

  transition:
    transform 0.35s ease;
}

.qa-item__icon::after {
  transform:
    translate(-50%, -50%)
    rotate(90deg);
}

.qa-item.is-active
.qa-item__icon::after {
  transform:
    translate(-50%, -50%)
    rotate(0deg);
}


/* ========================================
   Answer
======================================== */

.qa-item__answer {
  overflow: hidden;
}

.qa-item__answer-inner {
  min-height: 0;
}

.qa-item__answer-inner p {
  margin: 0;

  padding:
    0
    58px
    22px
    26px;

  color: var(--color-text-sub);

  font-size: 11px;

  line-height: 1.9;
  letter-spacing: 0.03em;
}


/* ========================================
   Active Item
======================================== */

.qa-item.is-active
.qa-item__question {
  color: var(--color-main);
}


/* ========================================
   Tablet
======================================== */

@media screen and (max-width: 1024px) {

  /* Introduction */

  .qa-intro__inner {
    grid-template-columns:
      minmax(0, 1fr)
      minmax(0, 1.4fr);

    gap: 42px;
  }

  .qa-intro__link-area {
    grid-column: 2;
  }


  /* Q&A */

  .qa-list {
    padding:
      78px
      0
      90px;
  }

  .qa-category {
    grid-template-columns:
      230px
      minmax(0, 1fr);
  }

  .qa-category__heading {
    gap: 18px;

    padding:
      30px
      22px;
  }

  .qa-category__icon {
    width: 42px;
    height: 42px;
  }

  .qa-category__title {
    white-space: normal;
  }

}


/* ========================================
   Smartphone
======================================== */

@media screen and (max-width: 768px) {

  /* ========================================
     Introduction
  ======================================== */

  .qa-intro {
    padding:
      44px
      0;
  }

  .qa-intro__inner {
    display: block;
  }

  .qa-intro__title {
    font-size: 20px;
  }

  .qa-intro__content {
    margin-top: 24px;
  }

  .qa-intro__text {
    font-size: 12px;
  }

  .qa-intro__text br {
    display: none;
  }

  .qa-intro__link-area {
    margin-top: 24px;
  }


  /* ========================================
     Q&A
  ======================================== */

  .qa-list {
    padding:
      64px
      0
      72px;
  }

  .qa-category {
    display: block;
  }

  .qa-category + .qa-category {
    margin-top: 20px;
  }


  /* ========================================
     Category Heading
  ======================================== */

  .qa-category__heading {
    gap: 16px;

    padding:
      22px
      20px;

    border-right: none;

    border-bottom:
      1px
      solid
      var(--color-border);
  }

  .qa-category__icon {
    width: 40px;
    height: 40px;
  }

  .qa-category__title {
    font-size: 14px;

    white-space: normal;
  }


  /* ========================================
     Question
  ======================================== */

  .qa-item__question {
    min-height: 0;

    gap: 14px;

    padding:
      18px
      14px;

    font-size: 13px;

    letter-spacing: 0.02em;

    text-wrap: pretty;
  }


  /* ========================================
     Answer
  ======================================== */

  .qa-item__answer-inner p {
    padding:
      0
      42px
      20px
      14px;

    font-size: 11px;
  }

  .qa-item__answer-inner p br {
    display: none;
  }

}