:root {
  --blue: #225f9f;
  --teal: #087b7a;
  --amber: #b86b1f;
  --violet: #6b4aa0;
}

.case-hero,
.cases-hero,
.cases-filter,
.cases-list,
.case-layout,
.case-related,
.case-cta {
  width: min(1240px, 100%);
  margin: 0 auto;
  padding-right: 32px;
  padding-left: 32px;
}

.case-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.38fr);
  gap: 28px;
  align-items: stretch;
  padding-top: 34px;
}

.cases-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.38fr);
  gap: 28px;
  align-items: stretch;
  padding-top: 34px;
}

.case-hero-copy {
  min-height: 430px;
  padding: clamp(34px, 5vw, 58px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(244, 246, 247, 0.96), rgba(244, 246, 247, 0.78)),
    url("assets/iken-hero-tools-v1.png") center right / cover no-repeat;
}

.cases-hero-copy {
  min-height: 430px;
  padding: clamp(34px, 5vw, 58px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(244, 246, 247, 0.96), rgba(244, 246, 247, 0.72)),
    url("assets/iken-hero-tools-v1.png") center right / cover no-repeat;
}

.case-hero h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.1;
}

.cases-hero h1 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(40px, 5.6vw, 70px);
  line-height: 1.08;
}

.case-hero h1 .keep {
  white-space: nowrap;
}

.case-summary {
  max-width: 760px;
  margin: 24px 0 0;
  color: #3f4e57;
  font-size: 18px;
  line-height: 1.85;
}

.cases-hero-copy > p:not(.eyebrow) {
  max-width: 760px;
  margin: 24px 0 0;
  color: #3f4e57;
  font-size: 18px;
  line-height: 1.85;
}

.case-actions,
.case-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.case-primary,
.case-secondary {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 18px;
  font-size: 17px;
  font-weight: 900;
  line-height: 1.2;
}

.case-primary {
  color: #fff;
  background: var(--red);
}

.case-primary:hover {
  background: #94201d;
}

.case-secondary {
  color: var(--ink);
  border-color: var(--line);
  background: #fff;
}

.case-secondary:hover {
  border-color: #a8b5bd;
}

.case-hero-panel {
  padding: 30px;
  display: grid;
  align-content: center;
  gap: 24px;
  color: #fff;
  border: 1px solid #40515a;
  border-radius: 8px;
  background: #24343d;
}

.cases-hero-panel {
  padding: 30px;
  display: grid;
  align-content: center;
  gap: 28px;
  color: #fff;
  border: 1px solid #40515a;
  border-radius: 8px;
  background: #24343d;
}

.cases-hero-panel strong {
  color: #e8f0f3;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.22;
}

.cases-hero-panel em {
  color: #ffaaa6;
  font-style: normal;
}

.cases-value-list {
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.cases-value-list span {
  min-height: 70px;
  display: flex;
  align-items: center;
  padding: 12px 0 12px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  color: #d7e0e4;
  line-height: 1.5;
  font-size: 17px;
  font-weight: 850;
  box-shadow: inset 4px 0 0 rgba(255, 170, 166, 0.72);
}

.cases-filter {
  padding-top: 24px;
}

.case-tag-filter {
  display: grid;
  gap: 14px;
}

.case-filter-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(24, 34, 42, 0.05);
}

.case-filter-head span {
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
}

.case-filter-head strong {
  color: var(--ink);
  font-size: 22px;
  line-height: 1.2;
}

.case-filter-reset,
.case-filter-group button {
  appearance: none;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  color: #3d4b54;
  background: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 900;
  line-height: 1.2;
  cursor: pointer;
}

.case-filter-reset:hover,
.case-filter-group button:hover {
  color: var(--red);
  border-color: #b9c5cc;
}

.case-filter-reset.is-active,
.case-filter-group button.is-active {
  color: #fff;
  border-color: var(--red);
  background: var(--red);
}

.case-filter-groups {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.case-filter-group {
  min-width: 0;
  margin: 0;
  padding: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: start;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.case-filter-group legend {
  padding: 0 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
}

.cases-list {
  padding-top: 72px;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.cases-grid-secondary {
  margin-top: 16px;
}

.application-card {
  position: relative;
  overflow: hidden;
  min-height: 490px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(24, 34, 42, 0.06);
}

.application-card-cost {
  box-shadow: 0 12px 32px rgba(24, 34, 42, 0.06);
}

.application-card-problem {
  box-shadow: 0 12px 32px rgba(24, 34, 42, 0.06);
}

.application-card-replacement {
  box-shadow: 0 12px 32px rgba(24, 34, 42, 0.06);
}

.application-card-efficiency,
.application-card-quality {
  box-shadow: 0 12px 32px rgba(24, 34, 42, 0.06);
}

.application-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: var(--red);
}

.application-card-problem::before {
  background: var(--teal);
}

.application-card-replacement::before {
  background: var(--blue);
}

.application-card-efficiency::before {
  background: var(--amber);
}

.application-card-quality::before {
  background: var(--violet);
}

.application-card-head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.application-card-head span {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 0 9px;
  border-radius: 4px;
  color: #fff;
  background: var(--steel);
  font-size: 13px;
  font-weight: 900;
  line-height: 1.1;
}

.application-card-cost .application-card-head span {
  background: var(--red);
}

.application-card-problem .application-card-head span {
  background: var(--teal);
}

.application-card-replacement .application-card-head span {
  background: var(--blue);
}

.application-card-efficiency .application-card-head span {
  background: var(--amber);
}

.application-card-quality .application-card-head span {
  background: var(--violet);
}

.application-card-head strong {
  color: var(--red);
  font-size: 18px;
  line-height: 1.15;
  text-align: right;
}

.application-card-problem .application-card-head strong {
  color: var(--teal);
}

.application-card-replacement .application-card-head strong {
  color: var(--blue);
}

.application-card-efficiency .application-card-head strong {
  color: var(--amber);
}

.application-card-quality .application-card-head strong {
  color: var(--violet);
}

.application-card h3 {
  order: 3;
  margin: 18px 0 12px;
  font-size: 24px;
  line-height: 1.35;
}

.application-card p {
  order: 4;
  margin: 0;
  color: var(--muted);
  line-height: 1.76;
}

.application-card > a {
  order: 9;
  margin-top: auto;
  padding-top: 22px;
  color: var(--red);
  font-weight: 900;
}

.application-card-replacement > a {
  color: var(--blue);
}

.application-card-problem > a {
  color: var(--teal);
}

.application-card-efficiency > a {
  color: var(--amber);
}

.application-card-quality > a {
  color: var(--violet);
}

.card-tags {
  order: 2;
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

.card-tags span {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  border: 1px solid #d7e0e5;
  border-radius: 4px;
  padding: 0 8px;
  color: #586773;
  background: #fbfcfd;
  font-size: 12px;
  font-weight: 850;
  line-height: 1;
}

.application-card[hidden] {
  display: none;
}

.case-empty-state {
  margin-bottom: 18px;
  padding: 18px 20px;
  border: 1px dashed #c8d1d7;
  border-radius: 8px;
  color: var(--muted);
  background: #fbfcfd;
  font-weight: 850;
  line-height: 1.65;
}

.saving-table {
  order: 5;
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 22px 0 0;
}

.saving-table div {
  min-height: 76px;
  padding: 13px;
  display: grid;
  gap: 5px;
  align-content: center;
  border: 1px solid #d8dfe3;
  border-radius: 8px;
  background: #fbfcfd;
}

.saving-table dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

.saving-table dd {
  margin: 0;
  color: var(--ink);
  font-size: 17px;
  font-weight: 900;
  line-height: 1.35;
}

.problem-points {
  order: 5;
  display: grid;
  gap: 9px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.problem-points li {
  position: relative;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.65;
}

.problem-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
}

.application-card-efficiency .problem-points li::before {
  background: var(--amber);
}

.application-card-quality .problem-points li::before {
  background: var(--violet);
}

.replacement-table {
  order: 5;
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 22px 0 0;
}

.replacement-table div {
  min-height: 76px;
  padding: 13px;
  display: grid;
  gap: 5px;
  align-content: center;
  border: 1px solid #d8dfe3;
  border-radius: 8px;
  background: #fbfcfd;
}

.replacement-table dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

.replacement-table dd {
  margin: 0;
  color: var(--ink);
  font-size: 17px;
  font-weight: 900;
  line-height: 1.35;
}

.comparison-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.comparison-band article {
  min-height: 132px;
  padding: 20px;
  border: 1px solid #d8dfe3;
  border-radius: 8px;
  background: #fbfcfd;
}

.comparison-band strong {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 15px;
}

.comparison-band b {
  display: block;
  color: var(--ink);
  font-size: 30px;
  line-height: 1.1;
}

.comparison-band span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.6;
}

.case-hero-panel strong {
  color: #e8f0f3;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.22;
}

.case-hero-panel em {
  color: #ffaaa6;
  font-style: normal;
}

.case-facts {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.case-facts div {
  display: grid;
  gap: 5px;
  min-height: 70px;
  align-content: center;
  padding: 12px 0 12px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: inset 4px 0 0 rgba(255, 170, 166, 0.72);
}

.case-facts dt {
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  font-weight: 850;
}

.case-facts dd {
  margin: 0;
  color: #f3f7f8;
  font-size: 17px;
  font-weight: 850;
  line-height: 1.4;
}

.case-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.68fr) minmax(280px, 0.32fr);
  gap: 32px;
  align-items: start;
  padding-top: 54px;
}

.case-content {
  display: grid;
  gap: 18px;
}

.case-section,
.case-side-card,
.case-related-card,
.case-cta-inner {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(24, 34, 42, 0.06);
}

.case-section {
  padding: clamp(24px, 3vw, 34px);
}

.case-section h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 38px);
}

.case-section > p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.case-section h3 {
  margin: 26px 0 12px;
  font-size: 20px;
}

.case-metrics,
.case-checks,
.case-points {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

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

.case-metrics li {
  min-height: 104px;
  padding: 18px;
  border: 1px solid #d8dfe3;
  border-radius: 8px;
  background: #fbfcfd;
}

.case-metrics strong {
  display: block;
  margin-bottom: 7px;
  color: var(--red);
  font-size: 15px;
}

.case-metrics span,
.case-checks li,
.case-points li,
.case-template-note,
.case-side-card p,
.case-side-card li,
.case-related-card p,
.case-cta-inner p {
  color: var(--muted);
  line-height: 1.75;
}

.case-checks li,
.case-points li {
  position: relative;
  padding-left: 22px;
}

.case-checks li::before,
.case-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
}

.case-template-note {
  margin-top: 22px;
  padding: 16px 18px;
  border: 1px dashed #c8d1d7;
  border-radius: 8px;
  background: #fbfcfd;
  font-size: 15px;
}

.case-result-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.case-result-grid article {
  min-height: 126px;
  padding: 20px;
  border: 1px solid #d8dfe3;
  border-radius: 8px;
  background: #fbfcfd;
}

.case-result-grid strong {
  display: block;
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 18px;
}

.case-result-grid span {
  color: var(--muted);
  line-height: 1.65;
}

.case-sidebar {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 16px;
}

.case-side-card {
  padding: 24px;
}

.case-side-card h2,
.case-side-card h3 {
  margin: 0 0 14px;
  font-size: 22px;
}

.case-side-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.case-side-card li {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.case-side-card li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.case-side-card b {
  display: block;
  color: var(--ink);
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.case-tags span {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #3d4b54;
  background: #fbfcfd;
  font-size: 14px;
  font-weight: 850;
}

.case-related {
  padding-top: 78px;
}

.case-related-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.case-related-head h2 {
  margin: 0;
}

.case-related-head p {
  max-width: 430px;
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
}

.case-related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.case-related-card {
  min-height: 232px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.case-related-card h3 {
  margin: 12px 0 12px;
  font-size: 21px;
  line-height: 1.35;
}

.case-related-card small {
  color: var(--red);
  font-weight: 900;
}

.case-related-card p {
  margin-bottom: 0;
}

.case-related-card a {
  margin-top: auto;
  padding-top: 18px;
  color: var(--red);
  font-weight: 900;
}

.case-cta {
  padding-top: 32px;
  padding-bottom: 96px;
}

.case-cta-inner {
  padding: clamp(26px, 4vw, 42px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  color: #fff;
  border-color: #25333c;
  background: #25333c;
}

.case-cta-inner h2 {
  margin: 0;
  font-size: clamp(28px, 3.5vw, 44px);
}

.case-cta-inner p {
  max-width: 780px;
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.74);
}

.case-cta-inner .case-primary {
  background: var(--red);
}

.study-hero,
.study-kpis,
.study-layout {
  width: min(1240px, 100%);
  margin: 0 auto;
  padding-right: 32px;
  padding-left: 32px;
}

.study-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 14px;
  padding-top: 32px;
}

.study-hero-copy,
.study-result-card,
.study-block,
.study-visual-card,
.study-side-note {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(24, 34, 42, 0.06);
}

.study-hero-copy {
  min-height: 300px;
  padding: clamp(28px, 4vw, 46px);
  display: grid;
  align-content: center;
  background:
    linear-gradient(135deg, rgba(34, 95, 159, 0.08), rgba(255, 255, 255, 0) 48%),
    linear-gradient(180deg, #fff, #f7f9fa);
}

.study-hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(36px, 4.8vw, 62px);
  line-height: 1.08;
}

.study-hero-copy p:not(.eyebrow) {
  max-width: 720px;
  margin: 18px 0 0;
  color: #3f4e57;
  font-size: 18px;
  line-height: 1.78;
}

.study-result-card {
  min-height: 300px;
  padding: 24px;
  display: grid;
  align-content: center;
  color: #fff;
  border-color: #25333c;
  background: #25333c;
}

.study-result-card span {
  color: #ffaaa6;
  font-size: 15px;
  font-weight: 900;
}

.study-result-card strong {
  margin-top: 16px;
  color: #fff;
  font-size: clamp(58px, 7vw, 82px);
  line-height: 0.96;
}

.study-result-card p {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 18px;
  line-height: 1.55;
}

.study-kpis {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding-top: 14px;
}

.study-kpis div {
  min-height: 92px;
  padding: 18px;
  display: grid;
  align-content: center;
  gap: 8px;
  border: 1px solid var(--line);
  background: #fff;
}

.study-kpis span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 850;
}

.study-kpis strong {
  color: var(--ink);
  font-size: 22px;
  line-height: 1.2;
}

.study-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.58fr) minmax(360px, 0.42fr);
  gap: 18px;
  align-items: start;
  padding-top: 18px;
  padding-bottom: 92px;
}

.study-main,
.study-aside {
  display: grid;
  gap: 14px;
}

.study-aside {
  position: sticky;
  top: 92px;
}

.study-block,
.study-visual-card,
.study-side-note {
  padding: 24px;
}

.study-block-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.study-block-head h2,
.study-side-note h2 {
  margin: 0;
  font-size: 24px;
  line-height: 1.18;
}

.study-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.study-facts div {
  min-height: 74px;
  padding: 14px;
  display: grid;
  gap: 5px;
  align-content: center;
  background: #fbfcfd;
}

.study-facts dt,
.study-data-row span,
.study-result-table span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

.study-facts dd {
  margin: 0;
  color: var(--ink);
  font-size: 17px;
  font-weight: 850;
  line-height: 1.35;
}

.study-data-row,
.study-result-table {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.study-data-row div,
.study-result-table div {
  min-height: 86px;
  padding: 15px;
  display: grid;
  gap: 7px;
  align-content: center;
  border: 1px solid #d8dfe3;
  border-radius: 8px;
  background: #fbfcfd;
}

.study-data-row strong,
.study-result-table strong {
  color: var(--ink);
  font-size: 21px;
  line-height: 1.25;
}

.study-result-table div:last-child {
  border-color: rgba(34, 95, 159, 0.32);
  background: rgba(34, 95, 159, 0.06);
}

.study-result-table div:last-child strong {
  color: var(--blue);
}

.study-block p,
.study-note,
.study-side-note p {
  color: var(--muted);
  line-height: 1.76;
}

.study-block > p {
  margin: 16px 0 0;
}

.study-note {
  margin: 16px 0 0;
  padding: 14px 16px;
  border: 1px dashed #c8d1d7;
  border-radius: 8px;
  background: #fbfcfd;
  font-size: 15px;
}

.study-cta-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  border-color: #25333c;
  color: #fff;
  background: #25333c;
}

.study-cta-block h2 {
  margin: 0;
  color: #fff;
}

.study-cta-block p:not(.eyebrow) {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.study-visual-card {
  padding-bottom: 18px;
}

.gear-diagram {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
}

.gear-three-view {
  background: #fff;
}

.cad-drawing {
  color: var(--ink);
}

.cad-drawing text {
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
}

.cad-text text {
  fill: #151b1f;
  font-size: 15px;
  font-weight: 850;
}

.cad-callout text {
  fill: #4f5c65;
  font-size: 14px;
  font-weight: 800;
}

.cad-legend text {
  fill: #4f5c65;
  font-size: 14px;
  font-weight: 800;
}

.machining-3d {
  background: #fff;
}

.machining-3d text {
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
}

.machining-callout text {
  font-size: 17px;
  font-weight: 900;
}

.machining-dimension text,
.machining-note text,
.machining-legend text {
  fill: #4f5c65;
  font-size: 14px;
  font-weight: 850;
}

.study-side-note p {
  margin: 0;
}

.onepage-case-main {
  background:
    linear-gradient(180deg, rgba(245, 247, 248, 0.96), rgba(255, 255, 255, 0.98)),
    #f5f7f8;
}

.onepage-case {
  box-sizing: border-box;
  width: min(1240px, 100%);
  min-height: calc(100svh - 78px);
  margin: 0 auto;
  padding: 18px 32px 22px;
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(360px, 0.72fr);
  gap: 16px;
  align-items: stretch;
}

.onepage-left,
.onepage-right {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(24, 34, 42, 0.06);
}

.onepage-left {
  padding: 22px 24px 18px;
  display: grid;
  grid-template-rows: auto auto auto 1fr auto;
  gap: 12px;
}

.onepage-right {
  padding: 16px;
  display: grid;
  grid-template-rows: auto;
  align-content: start;
  gap: 12px;
}

.onepage-right-evidence {
  grid-template-rows: auto auto auto auto;
}

.case-mini-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.case-mini-nav a,
.case-mini-nav span,
.case-mini-nav strong {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  border-radius: 6px;
  padding: 0 10px;
  font-size: 13px;
  font-weight: 900;
  line-height: 1;
}

.case-mini-nav a {
  color: var(--ink);
  border: 1px solid var(--line);
  background: #fff;
}

.case-mini-nav span {
  color: #fff;
  background: var(--blue);
}

.case-mini-nav strong {
  color: #fff;
  background: var(--teal);
}

.case-detail-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: start;
}

.case-label-block {
  display: grid;
  justify-items: start;
  gap: 8px;
}

.case-primary-row,
.case-secondary-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.case-primary-tag {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  border-radius: 4px;
  padding: 0 10px;
  color: #fff;
  background: var(--steel);
  font-size: 13px;
  font-weight: 900;
  line-height: 1;
}

.case-label-cost .case-primary-tag {
  background: var(--red);
}

.case-label-replacement .case-primary-tag {
  background: var(--blue);
}

.case-label-problem .case-primary-tag {
  background: var(--teal);
}

.case-label-efficiency .case-primary-tag {
  background: var(--amber);
}

.case-label-quality .case-primary-tag {
  background: var(--violet);
}

.case-secondary-tags span {
  min-height: 26px;
  display: inline-flex;
  align-items: center;
  border: 1px solid #d7e0e5;
  border-radius: 4px;
  padding: 0 8px;
  color: #586773;
  background: #fbfcfd;
  font-size: 12px;
  font-weight: 850;
  line-height: 1;
}

.case-back-link {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 12px;
  color: var(--ink);
  background: #fff;
  font-size: 13px;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
}

.case-back-link:hover {
  border-color: #bfcbd2;
  background: #f6f9fb;
}

.onepage-case h1 {
  max-width: 840px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(30px, 3.3vw, 46px);
  line-height: 1.12;
  letter-spacing: 0;
}

.case-conclusion {
  min-height: 70px;
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  border-radius: 8px;
  padding: 14px 18px;
  background: rgba(34, 95, 159, 0.08);
}

.case-conclusion span {
  color: var(--blue);
  font-size: 16px;
  font-weight: 900;
}

.case-conclusion p {
  margin: 0;
  color: #4f5c65;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
}

.case-conclusion p b,
.case-conclusion p strong {
  color: var(--ink);
  font-weight: 900;
}

.case-conclusion p b {
  display: inline-block;
  color: var(--blue);
  font-size: 1.18em;
  line-height: 1;
}

.onepage-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
}

.onepage-facts div {
  min-height: 56px;
  display: grid;
  align-content: center;
  gap: 3px;
  border: 1px solid #dce3e7;
  border-radius: 8px;
  padding: 10px 12px;
  background: #fbfcfd;
}

.onepage-facts dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

.onepage-facts dd {
  margin: 0;
  color: var(--ink);
  font-size: 16px;
  font-weight: 850;
  line-height: 1.26;
  overflow-wrap: anywhere;
}

.onepage-note {
  margin: 0;
  border: 1px dashed #c7d1d7;
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--muted);
  background: #fbfcfd;
  font-size: 14px;
  line-height: 1.55;
}

.case-image-placeholder,
.case-work-image,
.case-evidence-panel,
.case-result-panel,
.onepage-cta {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
}

.case-image-placeholder {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 16px;
  min-height: 0;
  padding: 22px;
  color: #89959d;
  text-align: center;
  background:
    linear-gradient(90deg, rgba(217, 224, 229, 0.55) 1px, transparent 1px),
    linear-gradient(180deg, rgba(217, 224, 229, 0.55) 1px, transparent 1px),
    #fbfcfd;
  background-size: 26px 26px;
}

.case-image-placeholder span {
  color: #73818a;
  font-size: 24px;
  font-weight: 900;
  line-height: 1.25;
}

.case-image-placeholder p {
  max-width: 310px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  font-weight: 750;
  line-height: 1.65;
}

.case-work-image {
  position: relative;
  margin: 0;
  min-height: 0;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: #f6f8f9;
}

.case-work-image img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: min(360px, 42vh);
  min-height: 0;
  display: block;
  object-fit: contain;
  object-position: center;
}

.case-work-image-marked {
  padding: 24px 28px 84px;
  background: #fff;
}

.case-work-image-marked > img:not(.case-visual-mark) {
  max-width: 92%;
  max-height: min(335px, 38vh);
}

.case-visual-mark {
  position: absolute;
  right: 30px;
  bottom: 24px;
  width: 168px !important;
  max-width: 24% !important;
  max-height: none;
  height: auto;
  min-height: 0;
  object-fit: contain;
  pointer-events: none;
  z-index: 2;
}

.case-work-image-composite {
  grid-template-columns: minmax(0, 1fr) minmax(168px, 0.38fr);
  gap: 12px;
  align-items: center;
  padding: 14px;
}

.case-work-image-composite > img {
  min-width: 0;
  height: 100%;
  min-height: 0;
  border-radius: 6px;
  object-fit: contain;
  object-position: center;
}

.case-proof-photo {
  position: absolute;
  right: 22px;
  top: 54px;
  width: min(34%, 210px);
  overflow: visible;
  border: 2px solid #fff;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 14px 30px rgba(24, 34, 42, 0.22);
}

.case-proof-photo img {
  width: 100%;
  height: 158px;
  min-height: 0;
  display: block;
  border-radius: 6px;
  object-fit: cover;
  object-position: center;
}

.case-proof-photo figcaption {
  position: absolute;
  left: 0;
  top: -30px;
  border-radius: 4px;
  padding: 6px 9px;
  color: #fff;
  background: var(--teal);
  font-size: 12px;
  font-weight: 900;
  line-height: 1.2;
  text-align: center;
  white-space: nowrap;
}

.case-proof-gallery {
  position: static;
  width: 100%;
  display: grid;
  gap: 6px;
  align-self: stretch;
  align-content: center;
  padding: 10px;
  border: 2px solid #fff;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 12px 26px rgba(24, 34, 42, 0.16);
}

.case-proof-gallery figcaption {
  justify-self: start;
  border-radius: 4px;
  padding: 6px 9px;
  color: #fff;
  background: var(--teal);
  font-size: 12px;
  font-weight: 900;
  line-height: 1.2;
  white-space: nowrap;
}

.case-proof-gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.case-proof-gallery-grid img {
  width: 100%;
  height: 72px;
  min-height: 0;
  display: block;
  border-radius: 6px;
  object-fit: cover;
}

.case-proof-gallery-grid img:first-child {
  grid-column: 1 / -1;
  height: 92px;
  object-position: center 22%;
}

.case-evidence-panel {
  padding: 14px;
  display: grid;
  gap: 10px;
  overflow: visible;
}

.case-evidence-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.case-evidence-head span {
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
}

.case-evidence-head strong {
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
  line-height: 1.2;
  white-space: nowrap;
}

.case-evidence-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 8px;
  height: clamp(190px, 25vh, 252px);
  min-height: 0;
}

.case-evidence-grid img {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: block;
  border: 1px solid #dce3e7;
  border-radius: 6px;
  object-fit: cover;
  background: #f6f8f9;
}

.case-evidence-grid img:first-child {
  grid-row: span 2;
  height: 100%;
  object-position: center 22%;
}

.case-result-panel {
  min-height: 0;
  padding: 16px 18px;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 10px;
}

.case-result-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.case-result-head span {
  color: var(--ink);
  font-size: 22px;
  font-weight: 900;
}

.case-result-head strong {
  color: var(--red);
  font-size: 34px;
  line-height: 1;
}

.case-bars {
  min-height: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  align-items: end;
}

.case-bar-item {
  height: 100%;
  min-height: 118px;
  display: grid;
  grid-template-rows: 1fr auto;
  justify-items: center;
  gap: 8px;
}

.case-bar {
  width: min(88px, 72%);
  height: var(--bar-height);
  min-height: 42px;
  align-self: end;
  display: flex;
  align-items: start;
  justify-content: center;
  padding-top: 12px;
  color: #fff;
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
  background: #75828a;
}

.case-bar-after {
  background: var(--red);
}

.case-bar-item strong {
  color: var(--muted);
  font-size: 16px;
}

.onepage-cta {
  padding: 14px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  color: #fff;
  border-color: #25333c;
  background: #25333c;
}

.onepage-cta span {
  color: #ffaaa6;
  font-size: 12px;
  font-weight: 900;
}

.onepage-cta strong {
  display: block;
  margin-top: 4px;
  color: #fff;
  font-size: 18px;
  line-height: 1.25;
}

.onepage-cta .case-primary {
  min-height: 44px;
  padding: 0 14px;
  white-space: nowrap;
}

@media (max-height: 760px) and (min-width: 1081px) {
  .onepage-case {
    padding-top: 14px;
    padding-bottom: 16px;
  }

  .onepage-left {
    gap: 9px;
    padding: 18px 22px 14px;
  }

  .onepage-case h1 {
    font-size: clamp(28px, 3vw, 40px);
  }

  .case-conclusion {
    min-height: 62px;
    padding: 10px 16px;
  }

  .case-conclusion p {
    font-size: 18px;
    line-height: 1.35;
  }

  .onepage-facts div {
    min-height: 50px;
    padding: 8px 10px;
  }

  .onepage-facts dd {
    font-size: 15px;
  }

  .onepage-right {
    grid-template-rows: minmax(168px, 0.9fr) minmax(150px, 0.7fr) auto;
  }

  .onepage-right-evidence {
    grid-template-rows: auto auto auto auto;
  }

  .case-image-placeholder span {
    font-size: 22px;
  }
}

@media (max-width: 1080px) {
  .case-hero,
  .cases-hero,
  .case-layout,
  .case-cta-inner {
    grid-template-columns: 1fr;
  }

  .case-sidebar {
    position: static;
  }

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

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

  .study-hero,
  .study-layout,
  .study-cta-block {
    grid-template-columns: 1fr;
  }

  .study-aside {
    position: static;
  }

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

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

@media (max-width: 760px) {
  .case-hero,
  .cases-hero,
  .cases-filter,
  .cases-list,
  .case-layout,
  .case-related,
  .case-cta,
  .study-hero,
  .study-kpis,
  .study-layout {
    padding-right: 18px;
    padding-left: 18px;
  }

  .case-hero {
    padding-top: 0;
  }

  .cases-hero {
    padding-top: 0;
  }

  .case-hero-copy {
    min-height: 430px;
    margin-right: -18px;
    margin-left: -18px;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .cases-hero-copy {
    min-height: 430px;
    margin-right: -18px;
    margin-left: -18px;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .case-hero h1 {
    font-size: 38px;
  }

  .cases-hero h1 {
    font-size: 40px;
  }

  .case-summary {
    font-size: 16px;
  }

  .case-detail-top {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .case-back-link {
    justify-self: start;
  }

  .cases-hero-copy > p:not(.eyebrow) {
    font-size: 16px;
  }

  .case-layout {
    padding-top: 36px;
  }

  .cases-list {
    padding-top: 52px;
  }

  .case-filter-head,
  .case-filter-groups {
    grid-template-columns: 1fr;
  }

  .case-filter-head {
    align-items: start;
  }

  .case-filter-reset {
    width: 100%;
  }

  .case-metrics,
  .case-result-grid,
  .saving-table,
  .replacement-table,
  .comparison-band {
    grid-template-columns: 1fr;
  }

  .application-card {
    min-height: auto;
  }

  .study-hero {
    padding-top: 0;
  }

  .study-hero-copy {
    min-height: 330px;
    margin-right: -18px;
    margin-left: -18px;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .study-hero h1 {
    font-size: 38px;
  }

  .study-result-card {
    min-height: 210px;
  }

  .study-kpis,
  .study-facts,
  .study-data-row,
  .study-result-table {
    grid-template-columns: 1fr;
  }

  .study-block,
  .study-visual-card,
  .study-side-note {
    padding: 20px;
  }

  .study-block-head {
    display: grid;
    align-items: start;
  }

  .case-related-head {
    display: grid;
    align-items: start;
  }

  .case-cta {
    padding-bottom: 64px;
  }
}