:root {
  --detail-primary: #168aa8;
  --detail-primary-deep: #096276;
  --detail-paper: color-mix(in srgb, var(--detail-primary) 2%, white);
  --detail-title: color-mix(in srgb, var(--detail-primary) 12%, white);
  --detail-soft: color-mix(in srgb, var(--detail-primary) 7%, white);
  --detail-line: #c1dce0;
}

body { background: #eef2f1; }
.site-header { border-color: var(--detail-line); background: #fbfdfd; }
.brand-mark { border-radius: 0; background: var(--detail-primary); }
.updated { color: #627579; }
.detail-main { padding-top: 22px; }
.detail-main > .back-link {
  margin-bottom: 12px;
  color: var(--detail-primary-deep);
  font-weight: 750;
}
.detail-main > .back-link::before { content: "← "; }

.detail-product {
  border: 1px solid var(--detail-line);
  border-top: 7px solid var(--detail-primary);
  border-radius: 0;
  background: var(--detail-paper);
  box-shadow: 0 12px 30px rgb(26 72 77 / 9%);
}
.detail-summary {
  gap: 14px;
  padding: 16px;
  border-color: var(--detail-line);
  background: var(--detail-title);
}
.detail-summary h1 { font-size: 22px; line-height: 1.35; }
.detail-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 9px;
  margin-top: 8px;
}
.detail-platform {
  display: inline-block;
  padding: 2px 6px;
  color: #a9000d;
  background: #fff0f1;
  font-size: 10px;
  font-weight: 800;
}
.detail-jan, .detail-release-date, .detail-list-price { color: #627579; font-size: 10px; }
.detail-price {
  grid-template-columns: auto auto;
  column-gap: 7px;
  justify-content: end;
  justify-items: end;
}
.detail-price .rank-badge { align-self: center; }
.detail-price .price { color: var(--detail-primary-deep); font-size: 27px; }
.detail-price .price-note { grid-column: 1 / -1; }

.detail-section { padding: 15px 16px; border-color: var(--detail-line); }
.detail-section h2 {
  margin-bottom: 9px;
  padding: 4px 8px;
  border-left: 4px solid var(--detail-primary);
  background: var(--detail-soft);
  font-size: 15px;
}
.detail-stores { border-color: var(--detail-line); border-radius: 0; }
.detail-stores .store {
  gap: 7px;
  padding: 7px 9px;
  border-color: var(--detail-line);
  background: transparent;
}
.detail-stores .store:nth-child(even) { background: rgb(255 255 255 / 42%); }
.detail-stores .store-name { font-size: 15px; line-height: 1.25; }
.detail-stores .price { color: var(--detail-primary-deep); font-size: 20px; }
.detail-stores .store-link { color: var(--detail-primary-deep); }
.detail-stores .rank-badge:not(.rank-1, .rank-2, .rank-3) {
  color: #17658e;
  background: #e2f1f8;
}
.detail-stores .store.store-promotion { background: #f1f9fa; }
.detail-stores .rank-badge.rank-pr {
  color: #ffffff;
  background: var(--detail-primary-deep);
}
.detail-stores .rank-1 { color: #554000; background: #f4c430; }
.detail-stores .rank-2 { color: #4e5960; background: #dfe4e7; }
.detail-stores .rank-3 { color: #70411f; background: #e6c4a8; }

.detail-history { padding-top: 15px; }
.detail-history-chart { margin-top: 11px; }
.detail-history-grid { stroke: #d8e5e5; }
.detail-history-line { stroke: var(--detail-primary); }
.detail-history-dot { fill: var(--detail-primary); }
.detail-history-detail {
  margin-top: 8px;
  padding: 9px 11px;
  border-left-color: var(--detail-primary);
  background: var(--detail-soft);
}

@media (max-width: 640px) {
  .detail-main { width: min(100% - 14px, 820px); padding-top: 14px; }
  .detail-main > .back-link { margin-left: 2px; margin-bottom: 9px; }
  .detail-summary { grid-template-columns: 1fr; gap: 9px; padding: 13px 10px; }
  .detail-summary h1 { font-size: 19px; }
  .detail-price { justify-content: end; justify-items: end; }
  .detail-price .price { font-size: 25px; }
  .detail-section { padding: 12px 10px; }
  .detail-section h2 { margin-bottom: 7px; }
  .detail-stores .store { grid-template-columns: auto minmax(0, 1fr) auto; padding: 6px 7px; }
  .detail-stores .store-name { font-size: 14px; }
  .detail-stores .price { font-size: 18px; }
  .detail-stores .price-note { font-size: 9px; }
}