/* 新增优势品牌正文组件：与 brand_detail.htm 共用，兼容桌面与移动端。 */
.qhdSeriesCatalog,
.qhdSeriesCatalog * {
  box-sizing: border-box;
}

.qhdSeriesCatalog {
  --brand-accent: #0668e8;
  --brand-accent-soft: #eaf3ff;
  --brand-ink: #0b2542;
  --brand-text: #425a72;
  --brand-line: #dce8f4;
  color: var(--brand-text);
  font-size: 16px;
  line-height: 1.9;
}

.qhdContextBack {
  position: fixed;
  z-index: 1090;
  top: clamp(96px, 15vh, 142px);
  left: max(18px, calc((100vw - 1760px) / 2 + 18px));
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 17px 0 10px;
  border: 1px solid rgba(0, 95, 255, .18);
  border-radius: 999px;
  color: #0a4f91;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 14px 36px rgba(8, 42, 78, .16);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  font: 700 14px/1.2 Arial, "Microsoft YaHei", sans-serif;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate3d(-18px, 0, 0);
  transition: opacity .24s ease, transform .24s ease, visibility .24s ease,
    color .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.qhdContextBack.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate3d(0, 0, 0);
}

.qhdContextBack:hover,
.qhdContextBack:focus-visible {
  color: #fff;
  border-color: #006ef0;
  background: linear-gradient(135deg, #0b83ff 0%, #0061d9 100%);
  box-shadow: 0 16px 38px rgba(0, 97, 217, .28);
  outline: none;
}

.qhdContextBack__icon {
  display: inline-grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, #1195ff, #0061d9);
  font-size: 20px;
  font-weight: 500;
  line-height: 1;
  transition: color .2s ease, background .2s ease;
}

.qhdContextBack:hover .qhdContextBack__icon,
.qhdContextBack:focus-visible .qhdContextBack__icon {
  color: #0860af;
  background: #fff;
}

.qhdSeriesCatalog p {
  margin: 0;
}

.qhdSeriesCatalog a {
  color: inherit;
}

.qhdCatalogIntro,
.qhdCatalogBlock,
.qhdCatalogNotice,
.qhdCatalogFaq,
.qhdCatalogSources {
  margin: 0 0 34px;
}

.qhdCatalogIntro {
  position: relative;
  overflow: hidden;
  padding: 36px;
  border: 1px solid var(--brand-line);
  border-radius: 20px;
  background:
    radial-gradient(circle at 95% 0, color-mix(in srgb, var(--brand-accent) 14%, transparent), transparent 46%),
    linear-gradient(145deg, #fff, #f6faff);
  box-shadow: 0 18px 46px rgba(15, 55, 94, .08);
}

.qhdCatalogIntro::after {
  position: absolute;
  right: -52px;
  bottom: -84px;
  width: 220px;
  height: 220px;
  border: 34px solid color-mix(in srgb, var(--brand-accent) 8%, transparent);
  border-radius: 50%;
  content: "";
}

.qhdCatalogKicker,
.qhdCatalogBlock__head > span,
.qhdCatalogSources > span {
  display: block;
  margin-bottom: 10px;
  color: var(--brand-accent);
  font: 800 12px/1.2 Arial, Helvetica, sans-serif;
  letter-spacing: 2.4px;
  text-transform: uppercase;
}

.qhdCatalogIntro h2,
.qhdCatalogBlock__head h2,
.qhdCatalogFaq h2,
.qhdCatalogSources h2 {
  margin: 0;
  color: var(--brand-ink);
  font-weight: 800;
}

.qhdCatalogIntro h2 {
  position: relative;
  z-index: 1;
  font-size: 32px;
  line-height: 1.42;
}

.qhdCatalogIntro > p {
  position: relative;
  z-index: 1;
  margin-top: 17px;
  max-width: 880px;
}

.qhdCatalogFacts {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 27px;
}

.qhdCatalogFact {
  min-height: 116px;
  padding: 19px;
  border: 1px solid var(--brand-line);
  border-radius: 13px;
  background: rgba(255, 255, 255, .9);
}

.qhdCatalogFact b {
  display: block;
  margin-bottom: 8px;
  color: var(--brand-accent);
  font: 800 13px/1.2 Arial, Helvetica, sans-serif;
  letter-spacing: 1px;
}

.qhdCatalogFact span {
  display: block;
  color: var(--brand-ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.65;
}

.qhdCatalogBlock {
  padding: 32px;
  border: 1px solid var(--brand-line);
  border-radius: 18px;
  background: #fff;
}

.qhdCatalogBlock__head {
  margin-bottom: 24px;
}

.qhdCatalogBlock__head h2,
.qhdCatalogFaq h2,
.qhdCatalogSources h2 {
  font-size: 26px;
  line-height: 1.5;
}

.qhdCatalogBlock__head p {
  margin-top: 10px;
  color: #65798d;
}

.qhdAliasList {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.qhdAliasList li {
  padding: 7px 12px;
  border: 1px solid color-mix(in srgb, var(--brand-accent) 20%, #dbe7f3);
  border-radius: 999px;
  color: color-mix(in srgb, var(--brand-accent) 74%, #18314a);
  background: var(--brand-accent-soft);
  font-size: 13px;
  line-height: 1.3;
  font-weight: 700;
}

.qhdHistoryNote {
  margin-top: 20px;
  padding: 18px 20px;
  border-left: 4px solid var(--brand-accent);
  border-radius: 0 10px 10px 0;
  background: #f6f9fc;
}

.qhdHistoryNote strong {
  color: var(--brand-ink);
}

.qhdSeriesGrid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.qhdSeriesCard {
  position: relative;
  min-height: 180px;
  padding: 23px;
  overflow: hidden;
  border: 1px solid var(--brand-line);
  border-radius: 14px;
  background: linear-gradient(145deg, #fff, #f8fbfe);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.qhdSeriesCard:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--brand-accent) 35%, var(--brand-line));
  box-shadow: 0 13px 28px rgba(15, 55, 94, .08);
}

.qhdSeriesCard::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 5px;
  height: 100%;
  background: var(--brand-accent);
  content: "";
}

.qhdSeriesCard__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 11px;
}

.qhdSeriesCard__meta span {
  color: var(--brand-accent);
  font: 800 11px/1.3 Arial, Helvetica, sans-serif;
  letter-spacing: 1.2px;
}

.qhdSeriesCard__meta em {
  padding: 4px 8px;
  border-radius: 999px;
  color: #61758a;
  background: #edf2f7;
  font-size: 11px;
  line-height: 1.2;
  font-style: normal;
}

.qhdSeriesCard h3 {
  margin: 0 0 9px;
  color: var(--brand-ink);
  font-size: 18px;
  line-height: 1.45;
}

.qhdSeriesCard p {
  color: #5a7086;
  font-size: 14px;
  line-height: 1.78;
}

.qhdSeriesCard__source {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 16px;
  color: var(--brand-accent) !important;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
}

.qhdSeriesCard__source:hover,
.qhdSeriesCard__source:focus-visible {
  text-decoration: underline;
  outline: none;
}

.qhdCatalogColumns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.qhdCatalogColumn {
  padding: 24px;
  border: 1px solid var(--brand-line);
  border-radius: 14px;
  background: #f8fbfe;
}

.qhdCatalogColumn h3 {
  margin: 0 0 14px;
  color: var(--brand-ink);
  font-size: 18px;
}

.qhdCatalogColumn ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.qhdCatalogColumn li {
  position: relative;
  padding: 8px 0 8px 20px;
  border-bottom: 1px dashed #dce6ef;
  font-size: 14px;
}

.qhdCatalogColumn li:last-child {
  border-bottom: 0;
}

.qhdCatalogColumn li::before {
  position: absolute;
  top: 18px;
  left: 2px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand-accent);
  content: "";
}

.qhdCatalogNotice {
  padding: 24px 26px;
  border: 1px solid #f0d8aa;
  border-radius: 14px;
  color: #654d24;
  background: #fffaf0;
}

.qhdCatalogNotice strong {
  color: #4b3716;
}

.qhdCatalogFaq {
  padding: 30px 32px;
  border-radius: 18px;
  color: #dceafa;
  background: linear-gradient(145deg, #081d34, #0c355e);
}

.qhdCatalogFaq h2 {
  margin-bottom: 20px;
  color: #fff;
}

.qhdCatalogFaq details {
  border-top: 1px solid rgba(255, 255, 255, .14);
}

.qhdCatalogFaq details:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, .14);
}

.qhdCatalogFaq summary {
  position: relative;
  padding: 17px 34px 17px 0;
  color: #fff;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.qhdCatalogFaq summary::-webkit-details-marker {
  display: none;
}

.qhdCatalogFaq summary::after {
  position: absolute;
  top: 17px;
  right: 4px;
  color: #7db7ff;
  content: "+";
  font: 700 20px/1 Arial, Helvetica, sans-serif;
}

.qhdCatalogFaq details[open] summary::after {
  content: "−";
}

.qhdCatalogFaq details p {
  padding: 0 0 18px;
  color: #c5d6e8;
  font-size: 14px;
}

.qhdCatalogSources {
  padding: 28px 30px;
  border: 1px solid var(--brand-line);
  border-radius: 16px;
  background: #fff;
}

.qhdCatalogSources p {
  margin-top: 9px;
  color: #64798d;
  font-size: 14px;
}

.qhdCatalogSources ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.qhdCatalogSources a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 10px 14px;
  border: 1px solid var(--brand-line);
  border-radius: 9px;
  color: #24435f;
  background: #f8fbfe;
  text-decoration: none;
  font-size: 13px;
  line-height: 1.5;
  transition: border-color .2s ease, color .2s ease;
}

.qhdCatalogSources a:hover,
.qhdCatalogSources a:focus-visible {
  border-color: var(--brand-accent);
  color: var(--brand-accent);
}

.qhdBrandDetailPage .qhdBrandRail__panel {
  max-height: calc(100vh - 96px);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}

/* Keep every brand mark inside one consistent 16:9 presentation area. */
.qhdBrandHero__image img {
  box-sizing: border-box;
  width: 100% !important;
  height: 100% !important;
  object-fit: contain !important;
  object-position: center !important;
  padding: 10px !important;
}

.qhdProcurementFlow {
  background:
    linear-gradient(145deg, rgba(236, 246, 255, .96), rgba(255, 255, 255, .98));
}

.qhdProcurementFlow__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.qhdProcurementFlow__grid li {
  position: relative;
  min-height: 176px;
  padding: 22px 18px 20px;
  border: 1px solid var(--brand-line);
  border-radius: 14px;
  background: rgba(255, 255, 255, .88);
  box-shadow: 0 10px 24px rgba(15, 55, 94, .05);
}

.qhdProcurementFlow__grid b {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 15px;
  border-radius: 50%;
  color: #fff;
  background: var(--brand-accent);
  font: 800 12px/1 Arial, Helvetica, sans-serif;
}

.qhdProcurementFlow__grid h3 {
  margin: 0 0 9px;
  color: var(--brand-ink);
  font-size: 17px;
  line-height: 1.45;
}

.qhdProcurementFlow__grid p {
  margin: 0;
  color: #60768b;
  font-size: 13px;
  line-height: 1.75;
}

@media (prefers-reduced-motion: reduce) {
  .qhdSeriesCard,
  .qhdCatalogSources a {
    transition: none;
  }
}

@media (max-width: 820px) {
  .qhdCatalogFacts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .qhdSeriesGrid,
  .qhdCatalogColumns {
    grid-template-columns: 1fr;
  }

  .qhdProcurementFlow__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .qhdContextBack {
    top: 78px;
    left: 12px;
    min-height: 42px;
    padding: 0 12px 0 8px;
    font-size: 13px;
  }

  .qhdContextBack__icon {
    width: 26px;
    height: 26px;
    font-size: 18px;
  }

  .qhdSeriesCatalog {
    font-size: 15px;
  }

  .qhdCatalogIntro,
  .qhdCatalogBlock,
  .qhdCatalogFaq,
  .qhdCatalogSources {
    padding: 23px 19px;
    border-radius: 14px;
  }

  .qhdCatalogIntro h2 {
    font-size: 25px;
  }

  .qhdCatalogBlock__head h2,
  .qhdCatalogFaq h2,
  .qhdCatalogSources h2 {
    font-size: 22px;
  }

  .qhdCatalogFacts {
    grid-template-columns: 1fr;
  }

  .qhdCatalogFact {
    min-height: 0;
  }

  .qhdSeriesCard {
    min-height: 0;
    padding: 20px 18px 20px 21px;
  }

  .qhdCatalogSources ul {
    grid-template-columns: 1fr;
  }

  .qhdProcurementFlow__grid {
    grid-template-columns: 1fr;
  }

  .qhdProcurementFlow__grid li {
    min-height: 0;
  }
}

/* Second-batch brand pages: seven required content modules, 2026-08-01. */
.qhdSupplyGrid,
.qhdDirectionGrid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 13px;
}

.qhdSupplyCard,
.qhdDirectionCard {
  position: relative;
  min-height: 184px;
  padding: 22px 18px 20px;
  overflow: hidden;
  border: 1px solid var(--brand-line);
  border-radius: 14px;
  background: #fff;
}

.qhdSupplyCard::before,
.qhdDirectionCard::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--brand-accent);
  content: "";
}

.qhdSupplyCard b,
.qhdDirectionCard b {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 28px;
  margin-bottom: 15px;
  padding: 0 9px;
  border-radius: 999px;
  color: #fff;
  background: var(--brand-accent);
  font: 800 12px/1 Arial, Helvetica, sans-serif;
}

.qhdSupplyCard h3,
.qhdDirectionCard h3 {
  margin: 0 0 10px;
  color: var(--brand-ink);
  font-size: 17px;
  line-height: 1.45;
}

.qhdSupplyCard p,
.qhdDirectionCard p {
  margin: 0;
  color: #60768b;
  font-size: 13px;
  line-height: 1.75;
}

.qhdFeatureList ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.qhdFeatureList li {
  position: relative;
  min-height: 62px;
  padding: 17px 18px 17px 48px;
  border: 1px solid var(--brand-line);
  border-radius: 12px;
  color: #415c73;
  background: #fff;
  font-size: 14px;
  line-height: 1.65;
}

.qhdFeatureList li::before {
  position: absolute;
  top: 18px;
  left: 18px;
  width: 18px;
  height: 18px;
  border: 5px solid color-mix(in srgb, var(--brand-accent) 28%, white);
  border-radius: 50%;
  background: var(--brand-accent);
  box-sizing: border-box;
  content: "";
}

.qhdSeriesCatalog--automotive .qhdSupplySection {
  background: linear-gradient(145deg, color-mix(in srgb, var(--brand-accent) 8%, white), #fff 62%);
}

.qhdSeriesCatalog--precision .qhdDirectionCard {
  border-top: 4px solid var(--brand-accent);
}

.qhdSeriesCatalog--precision .qhdDirectionCard::before {
  display: none;
}

.qhdSeriesCatalog--diversified .qhdDirectionSection {
  color: #fff;
  background: linear-gradient(135deg, #071f3b, color-mix(in srgb, var(--brand-accent) 72%, #0a2948));
}

.qhdSeriesCatalog--diversified .qhdDirectionSection .qhdCatalogBlock__head h2,
.qhdSeriesCatalog--diversified .qhdDirectionSection .qhdCatalogBlock__head p {
  color: #fff;
}

.qhdSeriesCatalog--diversified .qhdDirectionCard {
  border-color: rgba(255, 255, 255, .2);
  background: rgba(255, 255, 255, .95);
}

@media (max-width: 980px) {
  .qhdSupplyGrid,
  .qhdDirectionGrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .qhdSupplyGrid,
  .qhdDirectionGrid,
  .qhdFeatureList ul {
    grid-template-columns: 1fr;
  }

  .qhdSupplyCard,
  .qhdDirectionCard {
    min-height: 0;
  }
}