.detail-hero {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  color: var(--text-inverse);
  padding: 0;
  overflow: hidden;
}
.detail-hero-img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  display: block;
}
.detail-hero-img-placeholder {
  width: 100%;
  height: 320px;
  background: linear-gradient(135deg, #1e3a5f, #2d5a87);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 72px;
  opacity: 0.4;
}
.detail-hero-body {
  padding: var(--sp-8) var(--sp-6);
  max-width: var(--max-content-width);
  margin: 0 auto;
}
.detail-hero-subtitle {
  font-size: var(--fs-base);
  opacity: 0.7;
  margin-bottom: var(--sp-3);
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}
.detail-hero-subtitle span::after { content: '·'; margin-left: var(--sp-3); }
.detail-hero-subtitle span:last-child::after { content: ''; }
.detail-hero h1 {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-heavy);
  margin-bottom: var(--sp-6);
  line-height: 1.15;
}

.tabs-nav {
  background: var(--surface-2);
  border-bottom: 2px solid var(--border);
  position: sticky;
  top: 52px;
  z-index: 90;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs-nav::-webkit-scrollbar { display: none; }
.tabs-inner {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 var(--sp-6);
  display: flex;
  gap: 0;
}
.tab-link {
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  text-decoration: none;
  display: block;
}
.tab-link:hover { color: var(--text-primary); text-decoration: none; }
.tab-link.active { color: var(--text-accent); border-bottom-color: var(--border-accent); }

.detail-main { max-width: var(--max-content-width); margin: 0 auto; }

.engine-card-header {
  display: grid;
  grid-template-columns: 1fr auto auto auto auto;
  gap: var(--sp-4);
  align-items: center;
  flex: 1;
}
.engine-name { font-weight: var(--fw-bold); font-size: var(--fs-md); }
.engine-meta { font-size: var(--fs-sm); color: var(--text-secondary); }
.engine-power { font-size: var(--fs-md); font-weight: var(--fw-bold); color: var(--text-accent); white-space: nowrap; }
.engine-cons { font-size: var(--fs-sm); color: var(--text-secondary); white-space: nowrap; }

.engine-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}
.engine-detail-block { background: var(--surface-3); border-radius: var(--r-md); padding: var(--sp-4); }
.engine-detail-block h4 { font-size: var(--fs-sm); color: var(--text-secondary); margin-bottom: var(--sp-2); }

.issue-card {
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-bottom: var(--sp-3);
}
.issue-header {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-6);
  background: var(--surface-2);
  cursor: pointer;
}
.issue-icon { font-size: 24px; flex-shrink: 0; }
.issue-title-row { flex: 1; }
.issue-title { font-weight: var(--fw-bold); font-size: var(--fs-md); }
.issue-meta { font-size: var(--fs-sm); color: var(--text-secondary); display: flex; gap: var(--sp-3); flex-wrap: wrap; margin-top: 2px; }
.issue-body {
  display: none;
  padding: var(--sp-6);
  border-top: 1px solid var(--border);
  background: var(--surface-1);
}
.issue-body.open { display: block; }
.issue-body-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-4);
}
.issue-body-block h4 { font-size: var(--fs-sm); font-weight: var(--fw-bold); color: var(--text-secondary); margin-bottom: var(--sp-2); }

.maintenance-table th:last-child, .maintenance-table td:last-child { text-align: right; }
.maint-difficulty { display: inline-flex; align-items: center; gap: 4px; }

.model-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
}
.model-card-link { text-decoration: none; color: inherit; display: block; }
.model-card-link:hover .card { box-shadow: var(--shadow-md); }

.prices-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-6);
}

.buying-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-6);
}
.buying-good { border-left: 3px solid var(--severity-low); padding-left: var(--sp-4); }
.buying-bad { border-left: 3px solid var(--severity-high); padding-left: var(--sp-4); }

.attribution-note {
  background: var(--surface-3);
  border-radius: var(--r-md);
  padding: var(--sp-4) var(--sp-6);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-top: var(--sp-4);
}

.consumption-table td:nth-child(n+2) { text-align: right; font-variant-numeric: tabular-nums; }
.au-measured { color: var(--text-accent); font-weight: var(--fw-medium); }
.no-data { color: var(--text-muted); font-style: italic; }

.prevalence-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

@media (max-width: 1024px) {
  .engine-detail-grid { grid-template-columns: repeat(2, 1fr); }
  .model-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .detail-hero h1 { font-size: var(--fs-2xl); }
  .engine-card-header { grid-template-columns: 1fr auto; }
  .engine-power, .engine-cons { display: none; }
  .issue-body-grid { grid-template-columns: 1fr; }
  .engine-detail-grid { grid-template-columns: 1fr; }
  .prices-grid { grid-template-columns: 1fr; }
  .buying-grid { grid-template-columns: 1fr; }
  .model-grid { grid-template-columns: 1fr; }
}