.tpk-case {
  --tpk-case-container: 1400px;
  --tpk-case-radius: 20px;
  --tpk-case-shadow-rest: 0 0 10px 1px rgba(0,155,116,.035);
  --tpk-case-shadow-hover: 0 0 22px 4px rgba(0,155,116,.05);
  --tpk-case-section-gap: 80px;
  --tpk-case-prose-gap: 60px;
  --tpk-case-accent: #009b74;
  --tpk-case-accent-ink: #006b50;
  --tpk-case-muted: #666;
  --tpk-case-sticky-top: 40px;
  --tpk-case-ease: cubic-bezier(.4,0,.2,1);

  --tpk-case-gutter: 40px;
  display: flow-root;
  min-width: 0;
  max-width: var(--tpk-case-container);
  width: 100%;
  margin: 0 auto;
  font-family: "Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  color: #333;
  background: #fff;
  color-scheme: light;
  box-sizing: border-box;
  font-size: 16px;
  line-height: 1.9;
  overflow-wrap: break-word;

  padding: 0 var(--tpk-case-gutter) 100px;
  padding-left: max(var(--tpk-case-gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--tpk-case-gutter), env(safe-area-inset-right, 0px));
}

.tpk-case *,
.tpk-case *::before,
.tpk-case *::after {
  box-sizing: border-box;
}

.tpk-case h1,
.tpk-case h2,
.tpk-case h3,
.tpk-case h4,
.tpk-case p,
.tpk-case figure {
  margin: 0;
}

.tpk-case img {
  max-width: 100%;
}

.tpk-case a {
  color: var(--tpk-case-accent-ink);
  text-underline-offset: .18em;
}

.tpk-case button {
  font: inherit;
  cursor: pointer;
}

.tpk-case a:focus-visible,
.tpk-case button:focus-visible {
  outline: 3px solid var(--tpk-case-accent-ink);
  outline-offset: 4px;
}

.tpk-case .tpk-case__head {
  margin: 40px 0 30px;
}

.tpk-case .tpk-case__head h1 {
  font-size: 36px;
  font-weight: 500;
  color: #111;
  margin-bottom: 0;
  line-height: 1.3;
  letter-spacing: -.3px;
  overflow-wrap: anywhere;
}

.tpk-case .tpk-case__hero {
  position: relative;
  margin-bottom: var(--tpk-case-section-gap);
  border-radius: var(--tpk-case-radius);
  overflow: hidden;
  box-shadow: var(--tpk-case-shadow-rest);
  background: #111;
}

.tpk-case .tpk-case__hero:hover {
  box-shadow: var(--tpk-case-shadow-hover);
}

.tpk-case .tpk-case__image {
  width: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  aspect-ratio: 16 / 9;
  color: #fff;
  font-size: 14px;
  /* V2.8.1r5: smooth ease for the JS magnetic cursor-follow (adsorption);
     carousel mode overrides this with its own opacity+transform transition. */
  transition: transform 1.4s var(--tpk-case-ease);
}

.tpk-case .tpk-case__hero.is-enhanced {
  height: 780px;
}

.tpk-case .tpk-case__hero.is-enhanced .tpk-case__image {
  position: absolute;
  inset: 0;
  height: 100%;
  aspect-ratio: auto;
  opacity: 0;
  transform: scale(1.02);
  transition: opacity 1s var(--tpk-case-ease), transform 1.4s var(--tpk-case-ease);
  pointer-events: none;
}

.tpk-case .tpk-case__hero.is-enhanced .tpk-case__image.is-active {
  opacity: 1;
  transform: scale(1);
  z-index: 2;
}

.tpk-case .tpk-case__hero.is-enhanced .tpk-case__image.is-previous {
  opacity: 0;
  transform: translateX(-20px) scale(1.04);
  z-index: 1;
}

.tpk-case .tpk-case__rotation {
  display: none;
}

.tpk-case .tpk-case__click-area,
.tpk-case .tpk-case__hero-status {
  display: none;
}

.tpk-case .tpk-case__hero.is-enhanced .tpk-case__click-area {
  display: block;
  position: absolute;
  top: 76px;
  bottom: 58px;
  border: 0;
  background: transparent;
  z-index: 5;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
}

.tpk-case .tpk-case__click-area--previous {
  left: 80px;
  width: calc(50% - 80px);
}

.tpk-case .tpk-case__click-area--next {
  right: 0;
  width: 50%;
}

.tpk-case .tpk-case__hero button:focus-visible {
  outline-color: #fff;
  outline-offset: -4px;
}

/* V23.85: dot indicator rules removed — the runtime no longer creates
   tpk-case__dots / tpk-case__dot-bar / tpk-case__dot-fill, and the
   --tpk-case-progress custom property lost its only consumer with them. */

.tpk-case .tpk-case__hero.is-enhanced .tpk-case__hero-status {
  display: block;
  position: absolute;
  right: 18px;
  bottom: 16px;
  z-index: 11;
  color: #fff;
  background: rgba(0,0,0,.7);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 12px;
  line-height: 1.4;
  cursor: default;
}

.tpk-case .tpk-case__media-warning {
  color: #fff;
  background: #111;
  padding: 18px;
  margin: 0;
  line-height: 1.6;
  font-size: 14px;
}

.tpk-case .tpk-case__hero .tpk-case__media-warning {
  position: absolute;
  left: 80px;
  right: 20px;
  bottom: 56px;
  z-index: 4;
  max-height: 40%;
  overflow: auto;
}

.tpk-case .tpk-case__hero .tpk-case__media-warning[hidden] {
  display: none;
}

.tpk-case .tpk-case__layout {
  display: flex;
  align-items: flex-start;
  gap: 60px;
  margin-bottom: var(--tpk-case-section-gap);
}

.tpk-case > .tpk-case__layout:last-child,
.tpk-case > .tpk-case__hero:last-child {
  margin-bottom: 0;
}

.tpk-case .tpk-case__main-column {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--tpk-case-prose-gap);
}

.tpk-case .tpk-case__sidebar {
  width: 380px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.tpk-case .tpk-case__sidebar.is-sticky {
  position: sticky;
  top: var(--tpk-case-sticky-top);
}

.tpk-case .tpk-case__section {
  margin: 0;
}

.tpk-case > :last-child {
  margin-bottom: 0;
}

.tpk-case .tpk-case__section h2,
.tpk-case .tpk-case__system h2 {
  font-size: 28px;
  font-weight: 600;
  color: #111;
  margin-bottom: 20px;
  line-height: 1.35;
  letter-spacing: -.3px;
}

.tpk-case .tpk-case__main-column p {
  font-size: 16px;
  line-height: 1.9;
  color: #555;
  margin-bottom: 20px;
}

.tpk-case .tpk-case__main-column .tpk-case__lead {
  font-size: 17px;
  font-weight: 500;
  color: #333;
}

.tpk-case .tpk-case__subheading {
  font-size: 20px;
  font-weight: 500;
  margin: -5px 0 30px;
  line-height: 1.5;
  color: #333;
}

.tpk-case .tpk-case__accent {
  color: var(--tpk-case-accent-ink);
}

.tpk-case .tpk-case__challenge-solution {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 24px;
  margin: 0;
}

.tpk-case .tpk-case__challenge,
.tpk-case .tpk-case__solution {

  min-width: 0;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  transition: none;
}

.tpk-case .tpk-case__challenge-solution + .tpk-case__challenge-solution {
  border-top: 1px solid #E6E8EA;
  padding-top: 24px;
  margin-top: 24px;
}

.tpk-case .tpk-case__tag {
  display: inline-block;
  padding: 0;
  margin-bottom: 8px;
  border-radius: 0;
  background: transparent;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: normal;
  text-transform: none;
  line-height: 1.5;
}

.tpk-case .tpk-case__tag--challenge {
  color: #666;
}

.tpk-case .tpk-case__tag--solution {
  color: #006B50;
}

.tpk-case .tpk-case__challenge h3,
.tpk-case .tpk-case__solution h3,
.tpk-case .tpk-case__challenge h4,
.tpk-case .tpk-case__solution h4 {
  font-size: 18px;
  font-weight: 600;
  color: #111;
  margin: 0 0 8px;
  line-height: 1.4;
}

.tpk-case .tpk-case__challenge p,
.tpk-case .tpk-case__solution p {
  font-size: 14.5px;
  line-height: 1.7;
  color: #444;
  margin: 0;
}

.tpk-case .tpk-case__challenge p + p,
.tpk-case .tpk-case__solution p + p {
  margin-top: 12px;
}

.tpk-case .tpk-case__main-column p:last-child,
.tpk-case .tpk-case__main-column .tpk-case__list:last-child,
.tpk-case .tpk-case__list li:last-child {
  margin-bottom: 0;
}

.tpk-case .tpk-case__list {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}

.tpk-case .tpk-case__list li {
  position: relative;
  padding-left: 24px;
  font-size: 16px;
  color: #555;
  line-height: 1.9;
  margin-bottom: 12px;
}

.tpk-case .tpk-case__list li::before {
  content: "•";
  position: absolute;
  left: 0;
  top: -2px;
  color: #333;
  font-size: 24px;
}

.tpk-case .tpk-case__system {
  margin: 0;
}

.tpk-case .tpk-case__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 30px 80px;
  padding-bottom: 30px;
  border-bottom: 1px solid #eaeaea;
  margin: 0 0 30px;
}

.tpk-case .tpk-case__metric {
  min-width: 0;
  max-width: 100%;
}

.tpk-case .tpk-case__metric h4,
.tpk-case .tpk-case__metric dt {
  font-size: 32px;
  font-weight: 300;
  color: var(--tpk-case-accent-ink);
  line-height: 1.2;
  margin: 0 0 8px;
}

.tpk-case .tpk-case__metric p,
.tpk-case .tpk-case__metric dd {
  font-size: 13px;
  color: var(--tpk-case-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0;
  line-height: 1.6;
}

.tpk-case .tpk-case__system-description strong {
  color: #111;
  font-weight: 600;
}

.tpk-case .tpk-case__info-card {
  background: #fff;
  border: 1px solid #eaeaea;
  border-radius: 12px;
  padding: 24px;
  min-width: 0;
}

.tpk-case .tpk-case__info-item {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid #f1f1f1;
}

.tpk-case .tpk-case__info-item:last-child {
  border: 0;
  padding-bottom: 0;
  margin-bottom: 0;
}

.tpk-case .tpk-case__info-item > span,
.tpk-case .tpk-case__info-item dt {
  display: block;
  font-size: 11px;
  color: var(--tpk-case-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 6px;
  line-height: 1.5;
}

.tpk-case .tpk-case__info-item strong,
.tpk-case .tpk-case__info-item dd {
  display: block;
  font-size: 15px;
  color: #111;
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
  overflow-wrap: anywhere;
}

.tpk-case .tpk-case__sidebar-title {
  font-size: 14px;
  font-weight: 700;
  color: #111;
  margin: 0 0 20px;
  line-height: 1.4;
}

.tpk-case .tpk-case__sidebar-title--spaced {
  margin-top: 30px;
}

.tpk-case .tpk-case__products {
  min-width: 0;
}

.tpk-case .tpk-case__product {
  position: relative;
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
  text-decoration: none;
  background: transparent;
  border: 0;
  transition: transform .3s ease;
  min-width: 0;
}

.tpk-case .tpk-case__product:last-child {
  margin-bottom: 0;
}

.tpk-case .tpk-case__product:hover {
  transform: translateX(6px);
}

.tpk-case .tpk-case__product-image {
  display: block;
  flex-shrink: 0;
}

.tpk-case .tpk-case__product-image img {
  width: 75px;
  height: 55px;
  object-fit: contain;
  background: #fff;
  border: 1px solid #eee;
  border-radius: 6px;
  padding: 4px;
  margin: 0;
  display: block;
  color: #555;
  font-size: 10px;
}

.tpk-case .tpk-case__product-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
  justify-content: center;
}

.tpk-case .tpk-case__product-copy h3,
.tpk-case .tpk-case__product-copy h4 {
  font-size: 15px;
  color: #111;
  font-weight: 700;
  margin: 0 0 4px;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.tpk-case .tpk-case__product-copy h3 a,
.tpk-case .tpk-case__product-copy h4 a {
  color: inherit;
  text-decoration: none;
}

.tpk-case .tpk-case__product-copy h3 a::after,
.tpk-case .tpk-case__product-copy h4 a::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
}

.tpk-case .tpk-case__product:hover .tpk-case__product-copy a {
  color: var(--tpk-case-accent-ink);
}

.tpk-case .tpk-case__product-copy p {
  font-size: 12.5px;
  color: #666;
  margin: 0;
  line-height: 1.4;
}

/* V2.8.1r2 (0922 review): roomier padding + image-copy gap; chrome aligned to
   theme tokens.css — radius 12px (same as info-card/sidebar cards, NOT 10px)
   and neutral shadows from the four --shadow-* tokens (green tpk-case glow
   dropped): rest = --shadow-soft (0918 QA pick), hover = --shadow-circle. */
.tpk-case .tpk-case__products--grid .tpk-case__product {
  flex-direction: column;
  align-items: stretch;
  padding: 28px 24px;
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow-soft, 0 14px 34px rgba(16,24,40,.035));
  text-align: center;
  gap: 28px;
  transition: transform .5s ease, box-shadow .5s ease;
}

.tpk-case .tpk-case__products--grid .tpk-case__product:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-circle, 0 8px 22px rgba(16,24,40,.12));
}

.tpk-case .tpk-case__products--grid .tpk-case__product-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  padding: 0;
  border: 0;
  border-radius: 0;
  object-fit: contain;
  transition: transform .5s ease;
}

.tpk-case .tpk-case__products--grid .tpk-case__product:hover img {
  transform: scale(1.03);
}

.tpk-case .tpk-case__products--grid .tpk-case__product-copy h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
}

.tpk-case .tpk-case__product-copy .tpk-case__product-description {
  font-size: 14px;
  color: #222;
  margin-bottom: 14px;
}

.tpk-case .tpk-case__product-parameters {
  font-size: 12.5px;
  color: #666;
  margin-top: auto;
  line-height: 1.5;
}

.tpk-case .tpk-case__products--sidebar-cards .tpk-case__product {
  padding: 16px;
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow-soft, 0 14px 34px rgba(16,24,40,.035));
  align-items: flex-start;
}

.tpk-case .tpk-case__products--sidebar-cards .tpk-case__product-image img {
  width: 96px;
  height: 72px;
  border: 0;
  padding: 0;
}

.tpk-case .tpk-case__products--sidebar-cards .tpk-case__product-copy .tpk-case__product-description {
  font-size: 13px;
  margin: 4px 0 8px;
}

/* V23.71: Products Used (--sidebar-list) keeps the bare list layout (75x55
   image + title + parameters); each row is lifted onto a white card with the
   theme's neutral black shadow token --shadow-soft (the lightest grade of the
   four --shadow-* tokens in tokens.css, per the 2026-09-18 QA pick — the
   stronger --shadow-circle read too heavy). */
.tpk-case .tpk-case__products--sidebar-list .tpk-case__product {
  padding: 14px 16px;
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow-soft, 0 14px 34px rgba(16,24,40,.035));
}

.tpk-case > .tpk-case__products--grid {
  margin-bottom: var(--tpk-case-section-gap);
}

.tpk-case .tpk-case__products--grid .tpk-case__products-title {
  font-size: 28px;
  font-weight: 600;
  color: #111;
  margin: 0 0 20px;
  line-height: 1.35;
  letter-spacing: -.3px;
}

@media (max-width:768px){
.tpk-case .tpk-case__products--grid .tpk-case__products-title {
    font-size: 24px;
    margin-bottom: 16px;
}

}

/* V2.8.1r2: auto-fill fixed tracks — minmax(240px,1fr) caps at 5 cards
   per row inside the 1400px container (1400/240 = 5.8 -> 5 max); unlike
   auto-fit, empty tracks are KEPT, so a single card occupies one track
   (same card size as a full 5-card row) instead of stretching full width. */
.tpk-case .tpk-case__product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.tpk-case .tpk-case__product-grid .tpk-case__product {
  margin: 0;
}

.tpk-case .tpk-case__resources {
  min-width: 0;
}

.tpk-case .tpk-case__resources .tpk-case__sidebar-title {
  margin-top: 0;
}

.tpk-case .tpk-case__links {
  margin-top: 10px;
}

.tpk-case .tpk-case__link {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  padding: 14px 4px;
  margin-bottom: 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid #eaeaea;
  border-radius: 0;
  color: #444;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  transition: transform .3s ease;
}

.tpk-case .tpk-case__link:last-child {
  border-bottom: 0;
}

.tpk-case .tpk-case__link:hover,
.tpk-case .tpk-case__link:focus-within {
  transform: translateX(6px);
}

.tpk-case .tpk-case__link a {
  color: inherit;
  text-decoration: none;
}

.tpk-case .tpk-case__link a::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
}

.tpk-case .tpk-case__link-arrow {
  --tpk-case-arrow-x: 4px;
  --tpk-case-arrow-y: 0px;
  display: inline-block;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  line-height: 1;
  vertical-align: middle;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  transition: transform .3s ease;
}

.tpk-case .tpk-case__link-arrow[data-tpk-icon="action-arrow-left"] {
  --tpk-case-arrow-x: -4px;
}

.tpk-case .tpk-case__link-arrow[data-tpk-icon="action-arrow-up"] {
  --tpk-case-arrow-x: 0px;
  --tpk-case-arrow-y: -4px;
}

.tpk-case .tpk-case__link-arrow[data-tpk-icon="action-arrow-down"] {
  --tpk-case-arrow-x: 0px;
  --tpk-case-arrow-y: 4px;
}

.tpk-case .tpk-case__link-arrow[data-tpk-icon="action-arrow-up-right"] {
  --tpk-case-arrow-x: 3px;
  --tpk-case-arrow-y: -3px;
}

.tpk-case .tpk-case__link-arrow[data-tpk-icon="action-arrow-up-left"] {
  --tpk-case-arrow-x: -3px;
  --tpk-case-arrow-y: -3px;
}

.tpk-case .tpk-case__link-arrow[data-tpk-icon="action-arrow-down-right"] {
  --tpk-case-arrow-x: 3px;
  --tpk-case-arrow-y: 3px;
}

.tpk-case .tpk-case__link-arrow[data-tpk-icon="action-arrow-down-left"] {
  --tpk-case-arrow-x: -3px;
  --tpk-case-arrow-y: 3px;
}

.tpk-case .tpk-case__link:hover .tpk-case__link-arrow,
.tpk-case .tpk-case__link:focus-within .tpk-case__link-arrow {
  transform: translate(var(--tpk-case-arrow-x), var(--tpk-case-arrow-y));
}

.tpk-case .tpk-case__video {
  margin-bottom: var(--tpk-case-section-gap);
  border-radius: var(--tpk-case-radius);
  overflow: hidden;
  box-shadow: var(--tpk-case-shadow-rest);
  background: #000;
}

.tpk-case > .tpk-case__video:last-child,
.tpk-case > .tpk-case__products--grid:last-child {
  margin-bottom: 0;
}

.tpk-case .tpk-case__video-media-wrap {
  display: flex;
  line-height: 0;
}

.tpk-case .tpk-case__video-media {
  display: block;
  width: 100%;
  max-width: 100%;
  border: 0;
  background: #000;
}

.tpk-case iframe.tpk-case__video-media {
  aspect-ratio: 16 / 9;
}

.tpk-case video.tpk-case__video-media {
  height: auto;
}

.tpk-case .tpk-case__related {
  margin: 0;
}

.tpk-case .tpk-case__related h2 {
  font-size: 26px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 24px;
  color: #111;
}

.tpk-case .tpk-case__related-grid {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 30px;
}

.tpk-case .tpk-case__related-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0,1fr);
  align-content: start;
  min-width: 0;
}

.tpk-case .tpk-case__related-media {
  position: relative;
  grid-area: 1 / 1 / 2 / 2;
  align-self: start;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--tpk-case-shadow-rest);
  margin: 0;
}

.tpk-case .tpk-case__related-image-link {
  display: block;
  border-radius: inherit;
  text-decoration: none;
}

.tpk-case .tpk-case__related-image-link:focus-visible {
  outline: 3px solid var(--tpk-case-accent-ink);
  outline-offset: -4px;
}

.tpk-case .tpk-case__related-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  transition: transform .6s var(--tpk-case-ease);
  background: #f2f3f5;
  color: #444;
  font-size: 12px;
}

.tpk-case .tpk-case__related-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top,rgba(0,0,0,.85) 0%,rgba(0,0,0,.1) 60%,transparent 100%);
  opacity: 0;
  transition: opacity .5s ease;
  pointer-events: none;
  z-index: 1;
}

.tpk-case .tpk-case__related-copy {
  grid-area: 2 / 1 / 3 / 2;
  margin-top: 16px;
  padding: 0;
  min-width: 0;
}

.tpk-case .tpk-case__related-copy h3 {
  font-size: 18px;
  color: #222;
  margin: 0 0 6px;
  font-weight: 600;
  line-height: 1.4;
}

.tpk-case .tpk-case__related-copy h3 a {
  position: relative;
  display: inline-block;
  width: max-content;
  max-width: 100%;
  color: #222;
  text-decoration: none;
}

.tpk-case .tpk-case__related-copy h3 a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .95s cubic-bezier(.16,1,.3,1);
}

.tpk-case .tpk-case__related-copy h3 a:hover::after,
.tpk-case .tpk-case__related-copy h3 a:focus-visible::after {
  transform: scaleX(1);
}

.tpk-case .tpk-case__related-location {
  display: block;
  font-size: 13px;
  line-height: 1.6;
  color: #666;
}

.tpk-case .tpk-case__related-overlay {
  grid-area: 3 / 1 / 4 / 2;
  position: static;
  margin: 0;
  padding: 8px 0 0;
  color: #333;
  background: transparent;
  opacity: 1;
  transform: none;
  transition: none;
  pointer-events: none;
  min-width: 0;
}

.tpk-case .tpk-case__related-overlay-title {
  display: none;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.3;
}

.tpk-case .tpk-case__related-overlay-description {
  font-size: 14px;
  line-height: 1.6;
  color: #555;
}

@media (min-width: 1025px) and (hover: hover) and (pointer: fine) {
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) > .tpk-case__related-overlay {
    position: absolute;
    grid-area: 1 / 1 / 2 / 2;
    inset: auto 24px 24px;
    padding: 0;
    color: #fff;
    z-index: 2;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity .5s var(--tpk-case-ease), transform .5s var(--tpk-case-ease);
  }

  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-overlay-title {
    display: block;
  }

  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-overlay-description {
    color: #fff;
  }

  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-media:hover img,
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-media:focus-within img {
    transform: scale(1.04);
  }

  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-media:hover::after,
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-media:focus-within::after {
    opacity: 1;
  }

  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-media:hover ~ .tpk-case__related-overlay,
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-media:focus-within ~ .tpk-case__related-overlay {
    opacity: 1;
    transform: translateY(0);
  }
}

.tpk-case .tpk-case__fade {
  opacity: 1;
  transform: none;
}

@media (max-width: 1024px) {
  .tpk-case .tpk-case__layout {
    flex-direction: column;
    gap: 50px;
  }

  .tpk-case .tpk-case__main-column {
    width: 100%;
  }

  .tpk-case .tpk-case__sidebar {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2,minmax(0,1fr));
    gap: 30px;
  }

  .tpk-case .tpk-case__sidebar.is-sticky {
    position: static;
  }

  .tpk-case .tpk-case__sidebar > :only-child {
    grid-column: 1 / -1;
  }


  .tpk-case .tpk-case__hero {
    border-radius: 10px;
  }

  .tpk-case .tpk-case__hero.is-enhanced {
    height: auto;
    aspect-ratio: 4 / 3;
  }

  .tpk-case .tpk-case__hero .tpk-case__image {
    aspect-ratio: 4 / 3;
  }

  .tpk-case .tpk-case__challenge-solution {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tpk-case .tpk-case__challenge p,
  .tpk-case .tpk-case__solution p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
  }

  .tpk-case .tpk-case__metrics {
    gap: 40px;
  }

}

@media (max-width: 980px) {
  .tpk-case {
    --tpk-case-gutter: 28px;
  }
}

@media (max-width: 560px) {
  .tpk-case {
    --tpk-case-gutter: 18px;
  }
}

@media (max-width: 768px) {
  .tpk-case {
    padding-bottom: 64px;
  }


  .tpk-case .tpk-case__head {
    margin: 24px 0 24px;
  }

  .tpk-case {
    --tpk-case-section-gap: 48px;
    --tpk-case-prose-gap: 40px;
  }

  .tpk-case .tpk-case__section h2,
  .tpk-case .tpk-case__system h2 {
    font-size: 24px;
    line-height: 1.35;
    margin-bottom: 16px;
  }

  .tpk-case .tpk-case__layout {
    gap: 40px;
  }

  .tpk-case .tpk-case__main-column p {
    line-height: 1.8;
    margin-bottom: 16px;
  }

  .tpk-case .tpk-case__main-column p:last-child {
    margin-bottom: 0;
  }

  .tpk-case .tpk-case__challenge p,
  .tpk-case .tpk-case__solution p {
    margin-bottom: 0;
  }

  .tpk-case .tpk-case__metric p {
    font-size: 13px;
    line-height: 1.6;
    margin: 0;
  }

  .tpk-case .tpk-case__related-copy {
    margin-top: 12px;
  }

  .tpk-case .tpk-case__related h2 {
    font-size: 24px;
  }

  .tpk-case .tpk-case__sidebar {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .tpk-case .tpk-case__hero.is-enhanced {
    height: auto;
    aspect-ratio: 4 / 3;
  }

  .tpk-case .tpk-case__related-grid {
    grid-template-columns: 1fr;
  }

  /* V2.8.1: Products Used large cards degrade to horizontal compact cards on
     mobile (same look as --sidebar-cards: 96x72 image + left-aligned copy). */
  .tpk-case .tpk-case__products--grid .tpk-case__product {
    flex-direction: row;
    align-items: center;
    text-align: left;
    gap: 14px;
    padding: 14px 16px;
    border-radius: 12px;
  }

  .tpk-case .tpk-case__products--grid .tpk-case__product:hover {
    transform: none;
  }

  .tpk-case .tpk-case__products--grid .tpk-case__product:hover img {
    transform: none;
  }

  .tpk-case .tpk-case__products--grid .tpk-case__product-image {
    flex: 0 0 96px;
  }

  .tpk-case .tpk-case__products--grid .tpk-case__product-image img {
    width: 96px;
    height: 72px;
  }

  .tpk-case .tpk-case__products--grid .tpk-case__product-copy h3 {
    font-size: 15px;
    margin-bottom: 4px;
  }

  .tpk-case .tpk-case__products--grid .tpk-case__product-description {
    margin-bottom: 0;
  }


  .tpk-case .tpk-case__related-grid {
    gap: 28px;
  }

  /* V23.71: mobile dot rules removed — the dots were display:none on mobile;
     V23.85 removed the dots runtime-wide, so no replacement rule is needed. */

  .tpk-case .tpk-case__click-area--previous {
    left: 0;
    width: 50%;
  }

  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__click-area {
    top: 50px;
    bottom: 16px;
  }

  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__hero-status {
    right: 8px;
    bottom: 8px;
  }

  .tpk-case .tpk-case__hero .tpk-case__media-warning {
    left: 12px;
    right: 12px;
    bottom: 48px;
    padding: 8px;
    font-size: 12px;
  }

  .tpk-case .tpk-case__metrics {
    flex-direction: column;
    gap: 30px;
  }

}

@media (prefers-reduced-motion: reduce) {
  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__image,
  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__image.is-active,
  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__image.is-previous {
    transition: none;
    transform: none;
  }

  .tpk-case .tpk-case__product,
  .tpk-case .tpk-case__product-image img,
  .tpk-case .tpk-case__challenge,
  .tpk-case .tpk-case__solution,
  .tpk-case .tpk-case__related-media img,
  .tpk-case .tpk-case__related-media::after,
  .tpk-case .tpk-case__related-overlay,
  .tpk-case .tpk-case__link,
  .tpk-case .tpk-case__link-arrow,
  .tpk-case .tpk-case__related-copy h3 a::after {
    transition-duration: 0s;
  }

  .tpk-case .tpk-case__products .tpk-case__product:hover,
  .tpk-case .tpk-case__products .tpk-case__product:hover img,
  .tpk-case .tpk-case__challenge:hover,
  .tpk-case .tpk-case__solution:hover,
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-media:hover img,
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-media:focus-within img,
  .tpk-case .tpk-case__link:hover .tpk-case__link-arrow,
  .tpk-case .tpk-case__link:focus-within .tpk-case__link-arrow {
    transform: none;
  }

}

@media (prefers-reduced-motion: reduce) {
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) > .tpk-case__related-overlay,
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-media:hover ~ .tpk-case__related-overlay,
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-media:focus-within ~ .tpk-case__related-overlay {
    transform: none;
    transition: none;
  }
}

@media print {
  .tpk-case .tpk-case__layout,
  .tpk-case .tpk-case__sidebar {
    display: block;
    width: 100%;
    position: static;
  }

  .tpk-case .tpk-case__hero.is-enhanced {
    height: auto;
    aspect-ratio: auto;
  }

  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__image,
  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__image.is-active,
  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__image.is-previous {
    position: static;
    opacity: 1;
    height: auto;
    aspect-ratio: 16 / 9;
    transform: none;
  }

  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__click-area,
  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__hero-status {
    display: none;
  }

  .tpk-case .tpk-case__challenge-solution,
  .tpk-case .tpk-case__product,
  .tpk-case .tpk-case__info-item {
    break-inside: avoid;
  }

  .tpk-case .tpk-case__related-item > .tpk-case__related-overlay,
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) > .tpk-case__related-overlay {
    position: static;
    grid-area: 3 / 1 / 4 / 2;
    inset: auto;
    padding: 8px 0 0;
    opacity: 1;
    transform: none;
    color: #333;
  }

  .tpk-case .tpk-case__related-item .tpk-case__related-overlay-title,
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-overlay-title {
    display: none;
  }

  .tpk-case .tpk-case__related-item .tpk-case__related-overlay-description,
  .tpk-case .tpk-case__related-item:not(.tpk-case__related-item--static) .tpk-case__related-overlay-description {
    color: #555;
  }

  .tpk-case .tpk-case__related-item .tpk-case__related-media::after {
    display: none;
  }

  .tpk-case .tpk-case__hero {
    overflow: visible;
    box-shadow: none;
  }
}

@media (max-width: 768px) {

  /* V23.78: hero stays clipped with default bottom margin on mobile — the
     out-of-image dots/status offsets (V2.3.35) were removed so the capsule
     counter sits inside the hero bottom-right again (restores V23.71 intent). */

  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__image {
    border-radius: 10px;
  }


  .tpk-case .tpk-case__hero.is-enhanced .tpk-case__click-area {
    top: 0;
    bottom: 0;
  }
}