.home-series-section {
  padding: 68px 0 78px;
  background: linear-gradient(180deg, #fff 0%, #f7fbff 48%, #fff 100%);
  border-top: 1px solid rgba(39,15,148,.06);
  border-bottom: 1px solid rgba(39,15,148,.06);
}

.home-series-stack,
.series-stack {
  display: flex;
  flex-direction: column;
  gap: 42px;
}

.series-page-body {
  padding: 50px 0 86px;
  background: linear-gradient(180deg, #fff 0%, #f8fbff 54%, #f5f3fa 100%);
}

.series-hero {
  text-align: center;
}

.series-quicknav {
  position: static !important;
  z-index: 20;
  padding: 10px 0 0;
  background: #fff;
  border-bottom: 0 !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.series-quicknav.is-picker-open {
  margin-bottom: 18px;
}

.series-jump-card {
  width: min(920px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(230px, 280px);
  align-items: start;
  gap: 8px;
  position: relative;
  overflow: visible;
  color: #172033;
  background: #fff;
  border-bottom: 1px solid color-mix(in srgb, var(--quicknav-color) 14%, #e5e7eb);
}

.series-jump-summary {
  min-width: 0;
  padding: 6px 0 10px;
  background: transparent;
}

.series-jump-kicker {
  display: block;
  margin-bottom: 3px;
  color: var(--quicknav-color);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.series-jump-summary strong {
  display: block;
  min-width: 0;
  color: #172033;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 850;
  line-height: 1.2;
}

.series-jump-summary p {
  min-width: 0;
  margin: 5px 0 0;
  color: #475467;
  font-size: 13px;
  font-weight: 650;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.series-jump-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.series-jump-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 10px;
  color: var(--quicknav-color);
  background: color-mix(in srgb, var(--quicknav-color) 9%, #fff);
  border: 1px solid color-mix(in srgb, var(--quicknav-color) 18%, #e5e7eb);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.series-picker {
  position: relative;
  display: block;
  min-width: 0;
  padding: 4px 0 10px;
  background: #fff;
}

.series-picker-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 36px;
  padding: 0 12px;
  color: #270f94;
  background: color-mix(in srgb, var(--quicknav-color) 6%, #fff);
  border: 1px solid color-mix(in srgb, var(--quicknav-color) 18%, #ddd7ff);
  border-radius: 8px;
  font: 850 12px/1.2 var(--font-sans);
  cursor: pointer;
  text-align: left;
}

.series-picker-toggle i {
  color: var(--quicknav-color);
  font-size: 12px;
  transition: transform .2s ease;
}

.series-picker-toggle[aria-expanded="true"] i {
  transform: rotate(180deg);
}

.series-picker-menu {
  position: relative !important;
  inset: auto !important;
  z-index: 1;
  width: 100%;
  max-height: 238px;
  margin-top: 6px;
  padding: 4px;
  overflow: auto;
  background: color-mix(in srgb, var(--quicknav-color) 3%, #fff);
  border: 1px solid color-mix(in srgb, var(--quicknav-color) 12%, #e5e7eb);
  border-radius: 8px;
  box-shadow: none;
}

.series-picker-option {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 10px;
  padding: 7px 8px;
  color: #172033;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
  text-align: left;
  cursor: pointer;
}

.series-picker-option:hover,
.series-picker-option:focus-visible,
.series-picker-option.is-selected {
  background: color-mix(in srgb, var(--quicknav-color) 7%, #fff);
  border-color: color-mix(in srgb, var(--quicknav-color) 18%, #e5e7eb);
  outline: 0;
}

.series-picker-option-title {
  min-width: 0;
  color: #172033;
  font-size: 12px;
  font-weight: 900;
  line-height: 1.25;
}

.series-picker-option-meta {
  align-self: start;
  color: var(--quicknav-color);
  font-size: 11px;
  font-weight: 900;
  white-space: nowrap;
}

.series-picker-option-description {
  grid-column: 1 / -1;
  color: #667085;
  font-size: 11px;
  font-weight: 650;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.series-row {
  scroll-margin-top: 96px;
  border-top: 1px solid rgba(39,15,148,.11);
  padding-top: 24px;
}

.home-series-stack .series-row:first-child,
.series-stack .series-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.series-row-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.series-row-heading {
  min-width: 0;
}

.series-row-title {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  min-width: 0;
  color: #172033;
  text-decoration: none;
}

a.series-row-title:hover {
  color: #270f94;
}

.series-row-icon {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--series-color);
  background: color-mix(in srgb, var(--series-color) 12%, white);
  border: 1px solid color-mix(in srgb, var(--series-color) 20%, transparent);
  border-radius: 12px;
}

.series-row-title strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 25px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: 0;
}

.series-row-title small {
  display: block;
  margin-top: 4px;
  color: var(--series-color);
  font-size: 12px;
  font-weight: 800;
}

.series-row-description {
  max-width: 760px;
  margin: 10px 0 0 57px;
  color: #475467;
  font-size: 14px;
  line-height: 1.55;
}

.series-row-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 14px;
  color: #270f94;
  background: #fff;
  border: 1px solid #ddd7ff;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.series-row-link:hover {
  color: #fff;
  background: #270f94;
  border-color: #270f94;
}

.series-row-action {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 40px;
  padding: 0 14px;
  color: #fff;
  background: color-mix(in srgb, var(--series-color) 88%, #111827);
  border: 1px solid color-mix(in srgb, var(--series-color) 72%, #111827);
  border-radius: 9px;
  font: 800 13px/1 var(--font-sans);
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 9px 22px color-mix(in srgb, var(--series-color) 22%, transparent);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.series-row-action:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px color-mix(in srgb, var(--series-color) 26%, transparent);
}

.series-row-action[aria-expanded="true"] {
  color: var(--series-color);
  background: #fff;
}

.series-carousel {
  position: relative;
}

.series-carousel-btn {
  position: absolute;
  top: calc(50% - 14px);
  z-index: 5;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--series-color);
  background: #fff;
  border: 1px solid color-mix(in srgb, var(--series-color) 20%, #d8dee8);
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(20,40,60,.16);
  transition: transform .2s ease, opacity .2s ease, color .2s ease, background .2s ease;
}

.series-carousel-btn:hover {
  color: #fff;
  background: var(--series-color);
  transform: translateY(-1px);
}

.series-carousel-btn:disabled {
  opacity: .35;
  cursor: default;
  pointer-events: none;
}

.series-carousel-prev {
  left: 0;
}

.series-carousel-next {
  right: 0;
}

.series-article-rail {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  padding: 2px 2px 18px;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--series-color) 38%, #cbd5e1) transparent;
}

.series-page-row .series-article-preview {
  gap: 16px;
  overflow-x: auto;
  padding: 2px 48px 18px;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
}

.series-article-rail::-webkit-scrollbar {
  height: 8px;
}

.series-article-rail::-webkit-scrollbar-track {
  background: transparent;
}

.series-article-rail::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--series-color) 30%, #cbd5e1);
  border-radius: 999px;
}

.series-article-card {
  flex: 0 0 272px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  min-height: 258px;
  overflow: hidden;
  color: #172033;
  background: #fff;
  border: 1px solid color-mix(in srgb, var(--series-color) 16%, #e5e9f0);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(20,40,60,.07);
  text-decoration: none;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.series-page-row .series-article-card {
  flex: 0 0 clamp(188px, 22vw, 236px);
  min-height: 224px;
}

.series-article-card:hover {
  color: #111827;
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--series-color) 34%, #d8dee8);
  box-shadow: 0 16px 36px rgba(20,40,60,.13);
}

.series-article-img {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #eef2f7;
  overflow: hidden;
}

.series-article-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform .35s ease;
}

.series-article-card:hover .series-article-img img {
  transform: scale(1.04);
}

.series-article-img span {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 26px;
  padding: 0 9px;
  color: #fff;
  background: color-mix(in srgb, var(--series-color) 88%, #111827);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  box-shadow: 0 6px 16px rgba(0,0,0,.22);
}

.series-article-card h3 {
  margin: 0;
  padding: 15px 16px 18px;
  color: #172033;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.35;
}

.series-full-panel {
  margin-top: 18px;
  padding: 16px;
  background: color-mix(in srgb, var(--series-color) 7%, white);
  border: 1px solid color-mix(in srgb, var(--series-color) 20%, #e5e9f0);
  border-radius: 10px;
}

.series-full-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 9px;
}

.series-full-link {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  min-height: 44px;
  gap: 10px;
  padding: 9px 11px;
  color: #172033;
  background: #fff;
  border: 1px solid color-mix(in srgb, var(--series-color) 12%, #e5e9f0);
  border-radius: 8px;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease, transform .2s ease;
}

.series-full-link:hover {
  color: var(--series-color);
  border-color: color-mix(in srgb, var(--series-color) 34%, #d8dee8);
  transform: translateY(-1px);
}

.series-full-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 26px;
  color: #fff;
  background: color-mix(in srgb, var(--series-color) 86%, #111827);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
}

.series-full-title {
  min-width: 0;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.35;
}

.series-empty {
  padding: 28px;
  text-align: center;
  color: #667085;
  border: 1px dashed #cbd5e1;
  border-radius: 12px;
  background: #fff;
}

@media (max-width: 768px) {
  .home-series-section {
    padding: 48px 0 56px;
  }

  .series-page-body {
    padding: 34px 0 60px;
  }

  .series-quicknav {
    padding: 8px 0 0;
  }

  .series-jump-card {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .series-jump-summary {
    padding: 8px 0 9px;
    border-bottom: 1px solid color-mix(in srgb, var(--quicknav-color) 14%, #e5e7eb);
  }

  .series-jump-summary strong {
    font-size: 15px;
  }

  .series-jump-summary p {
    font-size: 12px;
    -webkit-line-clamp: 1;
  }

  .series-jump-meta {
    margin-top: 8px;
  }

  .series-picker {
    padding: 8px 0 10px;
  }

  .series-picker-toggle {
    min-height: 38px;
  }

  .series-picker-menu {
    max-height: 220px;
    margin-top: 6px;
    box-shadow: inset 0 0 0 1px rgba(15,23,42,.02);
  }

  .series-picker-option {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .series-picker-option-meta {
    white-space: normal;
  }

  .series-row {
    scroll-margin-top: 112px;
  }

  .series-row-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .series-row-description {
    margin-left: 0;
  }

  .series-row-action {
    width: 100%;
  }

  .series-row-title strong {
    font-size: 21px;
  }

  .series-page-row .series-article-preview {
    padding: 2px 42px 18px;
  }

  .series-article-card {
    flex-basis: 238px;
    min-height: 236px;
  }

  .series-page-row .series-article-card {
    flex-basis: min(238px, calc(100vw - 112px));
    min-height: 218px;
  }

  .series-carousel-btn {
    width: 34px;
    height: 34px;
  }

  .series-full-panel {
    padding: 12px;
  }

  .series-full-grid {
    grid-template-columns: 1fr;
  }
}