/* ============================================================
   symptoms/ ページ専用スタイル
   - カード型インデックス + 画像付き症状セクション（雑誌風）
   ============================================================ */

/* --- カード型インデックス --- */
.symptoms-toc {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0;
  background: transparent;
  border: none;
}
.symptoms-toc > .toc-card:nth-child(5) {
  grid-column: 1 / -1;
}

.toc-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-text);
  transition: transform var(--transition), border-color var(--transition),
              box-shadow var(--transition);
  overflow: hidden;
}
.toc-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--color-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}
.toc-card:hover {
  border-color: transparent;
  box-shadow: 0 10px 28px rgba(70, 131, 136, 0.10), 0 2px 6px rgba(0, 0, 0, 0.04);
  transform: translateY(-2px);
  opacity: 1;
}
.toc-card:hover::before { transform: scaleY(1); }
.toc-card__num {
  font-family: var(--font-en);
  font-size: var(--size-xl);
  font-weight: 300;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  line-height: 1;
  min-width: 48px;
}
.toc-card__body { min-width: 0; }
.toc-card__name {
  font-family: var(--font-serif);
  font-size: var(--size-lg);
  font-weight: 500;
  letter-spacing: 0.06em;
  margin: 0 0 var(--space-1);
  color: var(--color-text);
}
.toc-card__sub {
  font-family: var(--font-en);
  font-size: var(--size-xs);
  letter-spacing: var(--tracking-wider);
  color: var(--color-text-mute);
  text-transform: uppercase;
}
.toc-card__arrow {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-size: var(--size-md);
  transition: background var(--transition), color var(--transition), transform var(--transition);
  flex-shrink: 0;
}
.toc-card:hover .toc-card__arrow {
  background: var(--color-accent);
  color: #fff;
  transform: translateX(4px);
}

@media (max-width: 760px) {
  .symptoms-toc { grid-template-columns: 1fr; }
  .toc-card { padding: var(--space-4); gap: var(--space-3); }
  .toc-card__num { font-size: var(--size-lg); min-width: 38px; }
  .toc-card__name { font-size: var(--size-md); }
}

/* --- 症状セクション（画像つき・雑誌風） --- */
.symptom-section {
  padding: var(--space-9) 0;
  border-top: 1px solid var(--color-line);
  scroll-margin-top: 80px;
}
.symptom-section__inner {
  max-width: var(--max-content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}
.symptom-section:nth-of-type(even) .symptom-section__visual { order: 2; }
.symptom-section:nth-of-type(even) .symptom-section__content { order: 1; }

.symptom-section__visual {
  position: relative;
  aspect-ratio: 4 / 3;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-accent-soft) 0%, #fdf7ee 100%);
  box-shadow: 0 24px 56px rgba(70, 131, 136, 0.12), 0 4px 10px rgba(0, 0, 0, 0.03);
}
.symptom-section__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 30%, rgba(108, 176, 181, 0.20), transparent 55%),
    radial-gradient(circle at 70% 70%, rgba(244, 220, 180, 0.28), transparent 60%);
  z-index: 0;
}
.symptom-section__visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}
.symptom-section:nth-of-type(2) .symptom-section__visual { background: linear-gradient(135deg, #eaf3f4 0%, #faece1 100%); }
.symptom-section:nth-of-type(3) .symptom-section__visual { background: linear-gradient(135deg, #f4f8e8 0%, #f8ede0 100%); }
.symptom-section:nth-of-type(4) .symptom-section__visual { background: linear-gradient(135deg, #f0ece3 0%, #e6eff0 100%); }
.symptom-section:nth-of-type(5) .symptom-section__visual { background: linear-gradient(135deg, #f8f1e6 0%, #e5eff0 100%); }

.symptom-section__content { padding: var(--space-3) 0; }

.symptom-section__num {
  font-family: var(--font-en);
  font-size: var(--size-2xl);
  color: var(--color-accent);
  font-weight: 300;
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: var(--space-2);
}
.symptom-section h2 {
  font-family: var(--font-serif);
  font-size: var(--size-xl);
  font-weight: 500;
  letter-spacing: 0.08em;
  margin: 0 0 var(--space-5);
}
.symptom-section h3 {
  font-family: var(--font-serif);
  font-size: var(--size-md);
  font-weight: 500;
  color: var(--color-accent-dark);
  margin: var(--space-5) 0 var(--space-3);
  letter-spacing: 0.06em;
  padding-left: var(--space-3);
  border-left: 2px solid var(--color-accent);
}
.symptom-section p {
  font-size: var(--size-base);
  line-height: 2;
  color: var(--color-text-soft);
  margin: 0 0 var(--space-3);
}
.symptom-section__rec {
  margin-top: var(--space-5);
  padding: var(--space-4) var(--space-5);
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  font-size: var(--size-sm);
  color: var(--color-accent-dark);
  line-height: 1.9;
}
.symptom-section__rec strong {
  display: block;
  font-family: var(--font-en);
  font-size: var(--size-xs);
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-2);
  font-weight: 700;
  text-transform: uppercase;
}

@media (max-width: 760px) {
  .symptom-section__inner {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .symptom-section:nth-of-type(even) .symptom-section__visual { order: 0; }
  .symptom-section:nth-of-type(even) .symptom-section__content { order: 0; }
}