/* ===== Page hero (subpage) ===== */
.page-hero {
  background: linear-gradient(135deg, #e6f1f7 0%, #f7e8d4 100%);
  padding: 80px 0 64px;
  text-align: center;
}
.page-eyebrow {
  font-size: 13px;
  color: var(--c-accent);
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: 12px;
}
.page-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  margin-bottom: 24px;
  color: var(--c-primary-dark);
}
.page-lead {
  font-size: clamp(14px, 1.5vw, 17px);
  color: var(--c-muted);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
}
.page-lead strong {
  color: var(--c-primary-dark);
}

/* ===== Cases ===== */
.cases {
  background: var(--c-bg);
  padding: 64px 0;
}

.case-card {
  background: #fff;
  border-radius: 20px;
  padding: 36px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-sm);
}
.case-card:hover {
  box-shadow: var(--shadow-md);
}

.case-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.case-tag {
  display: inline-block;
  background: var(--c-primary);
  color: #fff;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}
.case-date {
  font-size: 13px;
  color: var(--c-muted);
  font-weight: 500;
}

.case-title {
  font-size: clamp(22px, 2.5vw, 30px);
  margin-bottom: 28px;
  color: var(--c-primary-dark);
  line-height: 1.4;
}
.case-title small {
  display: block;
  font-size: 0.55em;
  font-weight: 500;
  color: var(--c-muted);
  margin-top: 8px;
}

/* Before/After画像 */
.case-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 28px;
}
.case-image-single {
  grid-column: 1 / -1;
  max-width: 600px;
  margin: 0 auto;
}

.case-image {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--c-bg);
}
.case-image img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}
.case-image figcaption {
  background: #fff;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--c-muted);
  border-top: 1px solid var(--c-border);
}

.case-image-label {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  z-index: 2;
}
.case-image-label.before {
  background: rgba(90, 104, 120, 0.9);
}
.case-image-label.after {
  background: var(--c-accent);
}

/* 仕様テーブル */
.case-spec {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  background: var(--c-bg);
  border-radius: 12px;
  overflow: hidden;
}
.case-spec th, .case-spec td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
  font-size: 14px;
  vertical-align: top;
}
.case-spec th {
  font-weight: 700;
  color: var(--c-primary-dark);
  width: 30%;
  background: rgba(13, 110, 143, 0.05);
}
.case-spec tr:last-child th, .case-spec tr:last-child td {
  border-bottom: none;
}

/* お客様の声 */
.case-voice {
  background: linear-gradient(135deg, #fef7eb 0%, #f7e8d4 100%);
  border-left: 4px solid var(--c-accent);
  padding: 24px 28px;
  border-radius: 8px;
  font-style: normal;
  margin: 0;
}
.case-voice p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-text);
  margin-bottom: 12px;
}
.case-voice cite {
  display: block;
  text-align: right;
  font-size: 13px;
  font-style: normal;
  color: var(--c-muted);
  font-weight: 700;
}

/* レスポンシブ */
@media (max-width: 768px) {
  .case-card {
    padding: 24px;
  }
  .case-images {
    grid-template-columns: 1fr;
  }
  .case-spec th, .case-spec td {
    display: block;
    width: 100%;
    padding: 10px 14px;
  }
  .case-spec th {
    padding-bottom: 4px;
    background: rgba(13, 110, 143, 0.08);
  }
  .case-spec td {
    padding-top: 4px;
    padding-bottom: 14px;
  }
}

/* ナビ active 状態 */
.nav-pc a.active {
  color: var(--c-primary);
  font-weight: 700;
  position: relative;
}
.nav-pc a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--c-primary);
}