/* ========================================
   page-case.css
   ZERO POINT FIELD / Case Page
   料金ページ準拠の差分のみ
======================================== */

.page-case .case-category {
  margin-top: 34px;
  padding: 30px;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid #E9EDF2;
  box-shadow: 0 8px 24px rgba(31, 45, 58, 0.05);
}

.page-case .case-category__head {
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid #E9EDF2;
}

.page-case .case-category__head h3 {
  margin: 0;
  font-size: 1.7rem;
  line-height: 1.35;
  font-weight: 700;
  color: #1F2D3A;
}

.page-case .case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.page-case .case-block {
  padding: 22px;
  border-radius: 14px;
  background: #F7F8FA;
  border: 1px solid #E9EDF2;
}

.page-case .case-block h4 {
  margin: 0 0 14px;
  font-size: 0.96rem;
  line-height: 1.8;
  font-weight: 600;
  color: #1F2D3A;
}

.page-case .case-block p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.9;
  color: #5B6B7A;
}

.page-case .case-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-case .case-list li {
  position: relative;
  margin: 0;
  padding-left: 1.1em;
  font-size: 0.96rem;
  line-height: 1.9;
  color: #5B6B7A;
}

.page-case .case-list li + li {
  margin-top: 8px;
}

.page-case .case-list li::before {
  content: "・";
  position: absolute;
  top: 0;
  left: 0;
  color: #5B6B7A;
}

.case-backtotop {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 50;
}

.case-backtotop__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  padding: 0;
  border: 1px solid #cfd8e3;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.96);
  color: #1F2D3A;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition:
    opacity 0.25s ease,
    visibility 0.25s ease,
    transform 0.25s ease,
    background 0.25s ease;
}

.case-backtotop__button.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.case-backtotop__button:hover,
.case-backtotop__button:focus {
  background: #F7F8FA;
}

@media (max-width: 960px) {
  .page-case .case-category,
  .page-case .case-block {
    padding: 24px;
  }

  .page-case .case-category__head h3 {
    font-size: 1.5rem;
  }

  .page-case .case-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .page-case .case-category__head h3 {
    font-size: 1.32rem;
  }

  .page-case .case-block h4,
  .page-case .case-block p,
  .page-case .case-list li {
    font-size: 0.92rem;
  }

  .case-backtotop {
    right: 16px;
    bottom: 16px;
  }

  .case-backtotop__button {
    width: 50px;
    height: 50px;
    font-size: 0.72rem;
  }
}