.detail-shell {
  max-width: var(--page);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 178px minmax(0, 1fr) 195px;
  gap: 10px;
  align-items: start;
  padding: 0 8px;
  background: #f4f4f4;
}

.left-filter {
  background: #f3f3f3;
  padding: 8px 0 10px;
}
.category-search-title {
  color: #444;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 13px;
  font-weight: 800;
  text-align: center;
  padding: 3px 0 8px;
  border-bottom: 2px solid #333;
  margin: 0 0 10px;
}
.filter-group { margin-bottom: 8px; }
.filter-parent-title {
  display: block;
  margin: 0 0 1px;
  padding: 5px 8px;
  background: #002fa7;
  border: 1px solid #c6c6c6;
  color: #111;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.05;
}
.filter-active-item {
  padding: 4px 8px;
  background: #fff;
  border: 1px solid #c6c6c6;
  border-top: 0;
}
.filter-link {
  display: block;
  color: #333;
  font-size: 11.5px;
  font-weight: 700;
  padding: 2px 0;
}
.remove-filter {
  display: inline-block;
  margin-top: 3px;
  padding: 2px 6px;
  background: #999;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
}
.model-list { padding: 4px 0; }
.model-item {
  display: block;
  padding: 2px 8px;
  color: #333;
  font-size: 11.2px;
  line-height: 1.25;
}
.model-item.active { background: #b8e1f8; color: #111; font-weight: 800; }

.detail-main { background: #fff; min-width: 0; padding-bottom: 10px; }
.go-back {
  display: block;
  padding: 8px 8px 5px;
  color: #111;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 14px;
  font-weight: 800;
  text-decoration: underline;
  border-bottom: 2px solid #555;
}
.breadcrumb-bar { background: #f2f2f2; padding: 6px 8px; font-size: 12px; border-bottom: 1px solid #e5e5e5; }
.breadcrumb-bar a { color: #111; text-decoration: underline; }
.breadcrumb-separator { color: #333; padding: 0 4px; }
.page-title { margin: 10px 8px; padding: 7px 9px; background: #111; color: #fff; font-size: 16px; font-weight: 900; }

.product-summary { display: grid; grid-template-columns: 235px 1fr; gap: 14px; padding: 0 8px 12px; }
.preview-card { background: #f4f4f4; padding: 8px; }
.main-photo { display: block; background: #fff; border: 5px solid #fff; box-shadow: 0 0 5px rgba(0,0,0,.35); }
.main-photo img { display: block; width: 100%; height: auto; }
.summary-info { padding: 4px 0; }
.params { padding: 8px 0; border-top: 1px dotted #bbb; border-bottom: 1px dotted #bbb; color: #555; }
.params p { margin: 4px 0; font-size: 11.5px; }

.tech-desc { margin: 0 8px; }
.section-title { margin: 10px 0 0; padding: 6px 8px; background: #002fa7; color: #333; font-weight: 900; font-size: 12px; }
.tech-box { margin: 0; padding: 10px 12px; background: #fff; border: 1px solid #d8d8d8; line-height: 1.6; }
.tech-box p { margin: 6px 0; font-size: 11.5px; color: #444; }

.similar-machines { margin: 12px 8px; padding: 8px; background: #f9f9f9; border: 1px solid #ddd; }
.similar-machines p { margin: 0 0 4px; font-size: 11.5px; color: #555; }
.similar-machines a { color: var(--link-blue); font-size: 11px; text-decoration: underline; word-break: break-all; }

.video-section { margin: 12px 8px; }
.video-section p { margin: 0 0 4px; font-size: 11.5px; color: #555; }
.yt-icon { color: #ff0000; font-size: 14px; margin-right: 4px; }
.video-section a { color: var(--link-blue); font-size: 11px; text-decoration: underline; word-break: break-all; }

.banner-ad { display: block; margin: 14px 8px; text-decoration: none; }
.banner-ad-inner {
  background: #000;
  color: #fff;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.banner-ad-inner strong { font-size: 16px; font-weight: 900; }
.banner-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #cc0000;
  color: #fff;
  font-size: 13px;
  font-weight: 900;
}
.banner-url { font-size: 11px; color: #ccc; }

.gab-repeat { display: block; margin: 0 8px; }
.gab-repeat img { display: block; width: 100%; height: 90px; object-fit: cover; border-top: 8px solid #585858; }

.recommend-section { margin: 0 8px; }
.recommend-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 7px;
  margin-top: 9px;
}
.recommend-card {
  border: 1px solid #d0d0d0;
  background: #fff;
  min-width: 0;
}
.recommend-head {
  padding: 5px 4px;
  background: #c90000;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
}
.recommend-title {
  display: block;
  min-height: 34px;
  padding: 7px 4px 3px;
  color: #444;
  font-size: 11px;
  font-weight: 800;
  text-align: center;
}
.recommend-title span { display: block; color: #777; font-size: 10px; font-weight: 400; }
.recommend-card img { width: 100%; height: 98px; object-fit: cover; display: block; padding: 0 4px; }
.recommend-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px;
  font-size: 10px;
  color: #777;
}
.heart { color: #f1d600; font-size: 14px; }

.right-panel { background: #fff; padding: 8px 0; }
.right-title { font: 800 11px Georgia, "Times New Roman", serif; margin: 0 8px 8px; padding-bottom: 7px; border-bottom: 2px solid #333; white-space: nowrap; }
.search-offer { margin: 0 8px 0; padding: 9px 8px; background: #e9e9e9; color: #777; font-size: 25px; font-weight: 900; display: flex; justify-content: space-between; align-items: center; }
.search-offer span { width: 30px; height: 30px; border-radius: 50%; border: 4px solid #aaa; display: inline-flex; align-items: center; justify-content: center; color: #aaa; font-size: 20px; }
.right-cats { list-style: none; margin: 0 8px 10px; padding: 0; }
.right-cats a { display: block; padding: 6px 7px; border-bottom: 1px solid #cfcfcf; background: #eee; color: #333; font-size: 11px; font-weight: 800; }
.vertical-ad { display: block; margin: 12px 8px 0; min-height: 335px; background: linear-gradient(#fff 0 53%, #222 54% 84%, #0b78ba 85% 100%); border: 1px solid #bbb; position: relative; overflow: hidden; color: #111; text-decoration: none; }
.vertical-ad strong { display: block; padding: 16px 10px 0; font-size: 38px; line-height: .8; letter-spacing: -2px; }
.vertical-ad em { display: block; padding: 4px 12px; color: #0065b0; font-size: 18px; font-style: normal; font-weight: 900; line-height: 1; }
.vertical-ad::before { content: ""; position: absolute; left: 12px; right: 12px; bottom: 55px; height: 96px; background: linear-gradient(100deg, #111, #999 45%, #111 46%, #333); transform: skewX(-10deg); opacity: .9; }
.vertical-ad .check { position: absolute; right: 14px; bottom: 36px; width: 60px; height: 60px; border-radius: 50%; background: #e40000; color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 900; }
.vertical-ad small { position: absolute; left: 10px; right: 10px; bottom: 8px; color: #fff; font-weight: 800; background: #0b78ba; padding: 2px 4px; }

@media (max-width: 900px) {
  .detail-shell { grid-template-columns: 1fr !important; }
  .product-summary { grid-template-columns: 1fr; }
  .recommend-grid { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; }
}

@media (max-width: 720px) {
  .banner-ad-inner { flex-direction: column; text-align: center; }
  .recommend-grid { grid-template-columns: 1fr !important; }
}

@media (max-width: 520px) {
  .page-title { font-size: 15px !important; line-height: 1.25; }
}