.business-page .lang-en {
  display: none;
}

html[data-lang="en"] .business-page .lang-zh {
  display: none;
}

html[data-lang="en"] .business-page .lang-en {
  display: inline;
}

html[data-lang="en"] .business-page p.lang-en {
  display: block;
}

.units-hero {
  position: relative;
  min-height: min(76vh, 760px);
  display: grid;
  place-items: center;
  overflow: hidden;
  color: var(--white);
  background: #39362f;
}

.units-hero-image {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(21, 19, 15, 0.82), rgba(21, 19, 15, 0.28) 64%, rgba(21, 19, 15, 0.48)),
    url("../assets/business-custom-hero.webp") center 53% / cover no-repeat;
}

.units-hero-copy {
  position: relative;
  z-index: 1;
  width: min(var(--content), calc(100% - 48px));
  padding-top: 0;
}

.units-hero-copy p,
.units-kicker,
.family-heading p,
.unit-number {
  margin: 0 0 24px;
  color: var(--champagne);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.units-hero-copy h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(48px, 6.1vw, 92px);
  line-height: 1.08;
  letter-spacing: 0;
}

.units-hero-copy > span {
  display: block;
  max-width: 660px;
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 16px;
  line-height: 1.7;
}

.custom-index {
  grid-template-columns: repeat(2, 1fr);
}

.custom-index a {
  justify-content: center;
  text-align: center;
  padding-inline: 24px;
}

.custom-section {
  width: min(var(--content), calc(100% - 48px));
  margin: 0 auto;
  padding: clamp(86px, 9vw, 138px) 0;
}

.custom-section-head {
  display: grid;
  grid-template-columns: minmax(320px, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(44px, 7vw, 112px);
  align-items: end;
  margin-bottom: clamp(48px, 6vw, 82px);
}

.custom-section-head h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(34px, 4vw, 62px);
  line-height: 1.16;
}

.custom-section-head > p:last-child {
  max-width: 720px;
  margin: 0;
  color: var(--body);
  font-size: 16px;
  line-height: 1.95;
}

.business-section-head {
  display: block;
  max-width: 760px;
  margin-bottom: clamp(30px, 4vw, 46px);
}

.business-section-head .units-kicker {
  margin-bottom: 12px;
  color: var(--ink);
  font-size: clamp(38px, 5vw, 68px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 0;
}

.business-section-head .units-kicker::after {
  content: "";
  display: block;
  width: 52px;
  height: 4px;
  margin-top: 14px;
  background: #b40000;
}

.business-section-head h2 {
  max-width: 720px;
  margin: 0 0 14px;
  font-size: clamp(21px, 2vw, 30px);
  line-height: 1.35;
  font-weight: 900;
}

.business-section-head > p:last-child {
  max-width: 720px;
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.7;
  color: var(--ink-soft);
}

.oem-service-section > .business-section-head {
  margin-left: 0;
  margin-right: auto;
}

.business-card-grid {
  display: grid;
  gap: clamp(34px, 4vw, 56px);
}

.business-card {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(420px, 1.02fr);
  min-height: 560px;
  background: var(--white);
  border: 1px solid var(--line-soft);
}

.business-card:nth-child(even) {
  grid-template-columns: minmax(420px, 1.02fr) minmax(0, 0.98fr);
}

.business-card:nth-child(even) figure {
  order: 2;
}

.business-card figure {
  min-height: 440px;
  margin: 0;
  overflow: hidden;
  background: var(--paper);
}

.business-card img {
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1);
}

.business-card > div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(42px, 5vw, 72px);
}

.business-card > div > span,
.business-card li::marker {
  color: var(--champagne);
}

.business-card > div > span {
  margin-bottom: 20px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.business-card h3 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(30px, 3.3vw, 50px);
  line-height: 1.18;
}

.business-card p {
  margin: 28px 0 24px;
  color: var(--body);
  font-size: 15px;
  line-height: 1.9;
}

.business-card ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.65;
}

.business-card .unit-button {
  margin-top: 30px;
}

.business-card .unit-button .lang-zh,
.business-card .unit-button .lang-en,
.units-cta > a .lang-zh,
.units-cta > a .lang-en {
  margin-left: 0;
  font-size: 13px;
}

.oem-service-section {
  width: auto;
  padding-inline: max(24px, calc((100vw - var(--content)) / 2));
  background: var(--paper);
}

.oem-service-section > * {
  width: min(var(--content), 100%);
  margin-right: auto;
  margin-left: auto;
}

.custom-capabilities {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.custom-capabilities article {
  min-height: 230px;
  padding: clamp(28px, 3.2vw, 44px);
  background: var(--white);
}

.custom-capabilities article > span {
  color: var(--champagne);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 34px;
}

.custom-capabilities h3 {
  margin: 34px 0 14px;
  color: var(--ink);
  font-size: 22px;
}

.custom-capabilities p {
  margin: 0;
  color: var(--body);
  font-size: 14px;
  line-height: 1.85;
}

.custom-capability-visual {
  margin: 0;
  overflow: hidden;
  background: var(--white);
  border: 1px solid rgba(185, 167, 119, 0.24);
  border-radius: 18px;
  box-shadow: 0 24px 70px rgba(47, 42, 32, 0.1);
}

.custom-capability-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.custom-case-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: clamp(42px, 5vw, 70px);
}

.custom-case-strip figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ink);
}

.custom-case-strip img {
  height: clamp(260px, 24vw, 360px);
  object-fit: cover;
  opacity: 0.88;
}

.custom-case-strip figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 22px;
  color: var(--white);
  background: linear-gradient(transparent, rgba(21, 19, 15, 0.82));
  font-weight: 800;
}

.custom-process,
.custom-faq {
  margin-top: clamp(72px, 8vw, 112px);
}

.custom-process header,
.custom-faq header {
  display: grid;
  gap: 12px;
  margin-bottom: 30px;
}

.custom-process h2,
.custom-faq h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(28px, 3.1vw, 44px);
}

.custom-process ol {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.custom-process li {
  display: grid;
  gap: 18px;
  min-height: 160px;
  padding: 24px 16px;
  background: var(--white);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.custom-process strong {
  color: var(--champagne);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
}

.custom-process span {
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
}

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

.custom-faq details {
  background: var(--white);
  border: 1px solid var(--line);
}

.custom-faq summary {
  padding: 20px 22px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
}

.custom-faq p {
  margin: 0;
  padding: 0 22px 22px;
  color: var(--body);
  font-size: 14px;
  line-height: 1.85;
}

.units-intro,
.unit-family {
  width: min(var(--content), calc(100% - 48px));
  margin-inline: auto;
}

.units-intro {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(64px, 9vw, 150px);
  padding: clamp(92px, 10vw, 150px) 0;
}

.units-intro h2,
.family-heading h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 62px);
  line-height: 1.16;
  letter-spacing: 0;
  white-space: nowrap;
}

.units-intro-copy {
  align-self: end;
  max-width: 680px;
}

.units-intro-copy p {
  margin: 0;
  color: var(--body);
  font-size: 17px;
  line-height: 2;
}

.units-intro-copy p + p {
  margin-top: 24px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.unit-index {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.48);
}

.unit-index a {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 112px;
  padding: 24px clamp(20px, 3vw, 46px);
  border-right: 1px solid var(--line);
  transition: background var(--ease), color var(--ease);
}

.unit-index a:last-child {
  border-right: 0;
}

.unit-index a:hover,
.unit-index a:focus-visible {
  color: var(--white);
  background: var(--olive);
}

.unit-index strong {
  color: var(--champagne);
  font: 400 28px/1 Georgia, "Times New Roman", serif;
}

.unit-index span {
  font-size: 14px;
  font-weight: 700;
}

.unit-index small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 500;
}

.unit-index a:hover small,
.unit-index a:focus-visible small {
  color: rgba(255, 255, 255, 0.62);
}

.unit-family {
  padding: clamp(90px, 10vw, 150px) 0;
}

.solutions-family {
  position: relative;
}

.solutions-family::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0 calc(50% - 50vw);
  background: var(--paper);
}

.family-heading {
  display: grid;
  grid-template-columns: 0.7fr 1.1fr 1fr;
  align-items: end;
  gap: 44px;
  margin-bottom: clamp(66px, 8vw, 110px);
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
}

.family-heading p {
  margin: 0;
}

.family-heading > span {
  color: var(--body);
  font-size: 15px;
  line-height: 1.8;
}

.unit-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, 0.82fr);
  min-height: 650px;
  margin-bottom: clamp(80px, 10vw, 140px);
  background: var(--white);
}

.unit-feature:last-child {
  margin-bottom: 0;
}

.unit-feature.is-reversed {
  grid-template-columns: minmax(360px, 0.82fr) minmax(0, 1.18fr);
}

.unit-feature.is-reversed .unit-visual {
  order: 2;
}

.unit-visual {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  background: var(--paper-deep);
}

.unit-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(21, 19, 15, 0.64));
}

.unit-visual img {
  height: 100%;
  object-fit: cover;
  transition: transform 600ms ease;
}

.unit-feature:hover .unit-visual img {
  transform: scale(1.018);
}

#metal .unit-visual img {
  object-position: 52% center;
}

#plastic .unit-visual img {
  object-position: 48% center;
}

.unit-visual p {
  position: absolute;
  z-index: 1;
  inset: auto 36px 30px;
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.unit-visual p span {
  display: block;
  margin-bottom: 8px;
  color: var(--white);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.unit-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(52px, 6vw, 90px);
  border: 1px solid var(--line-soft);
}

.unit-number {
  margin-bottom: 24px;
}

.unit-content h3 {
  margin: 0;
  font-size: clamp(30px, 3.1vw, 52px);
  line-height: 1.18;
  white-space: nowrap;
}

.unit-en {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font: 400 17px/1.5 Georgia, "Times New Roman", serif;
}

.unit-position {
  margin: 32px 0 24px;
  color: var(--body);
  font-size: 16px;
  line-height: 1.9;
}

.unit-content ul {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.unit-content li {
  position: relative;
  padding: 14px 0 14px 20px;
  color: var(--ink-soft);
  font-size: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.unit-content li::before {
  content: "";
  position: absolute;
  top: 21px;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--champagne);
  border-radius: 50%;
}

.unit-button {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 12px;
  width: fit-content;
  min-height: 52px;
  margin-top: 32px;
  padding: 0 22px;
  color: var(--white);
  background: var(--olive);
  border: 1px solid var(--olive);
  font-size: 13px;
  font-weight: 700;
  transition: color var(--ease), background var(--ease);
}

.unit-button small {
  color: rgba(255, 255, 255, 0.58);
  font-size: 10px;
  font-weight: 500;
}

.unit-button span {
  margin-left: 8px;
  font-size: 18px;
}

.unit-button:hover,
.unit-button:focus-visible {
  color: var(--ink);
  background: transparent;
}

.unit-button:hover small,
.unit-button:focus-visible small {
  color: var(--muted);
}

.units-cta {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 48px;
  padding: clamp(80px, 9vw, 130px) max(24px, calc((100vw - var(--content)) / 2));
  color: var(--white);
  background: var(--olive-dark);
}

.units-cta p {
  margin: 0 0 18px;
  color: var(--champagne);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.17em;
}

.units-cta h2 {
  margin: 0 0 14px;
  font-size: clamp(34px, 4vw, 58px);
}

.units-cta span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
}

.units-cta > a {
  display: grid;
  place-items: center;
  min-width: 220px;
  min-height: 72px;
  padding: 14px 26px;
  border: 1px solid rgba(255, 255, 255, 0.54);
  font-size: 14px;
  font-weight: 700;
}

.units-cta > a small {
  color: rgba(255, 255, 255, 0.56);
  font-size: 10px;
  font-weight: 500;
}

@media (max-width: 1120px) {
  .custom-section-head,
  .business-card,
  .business-card:nth-child(even) {
    grid-template-columns: 1fr;
  }

  .business-card:nth-child(even) figure {
    order: 0;
  }

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

  .custom-process ol {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .unit-index {
    grid-template-columns: repeat(2, 1fr);
  }

  .unit-index a:nth-child(2) {
    border-right: 0;
  }

  .unit-index a:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .family-heading {
    grid-template-columns: 0.65fr 1.2fr;
  }

  .family-heading > span {
    grid-column: 2;
  }

  .unit-feature,
  .unit-feature.is-reversed {
    grid-template-columns: 1fr 1fr;
  }

  .unit-content {
    padding: 48px;
  }
}

@media (max-width: 820px) {
  .units-hero {
    min-height: 670px;
  }

  .units-hero-copy {
    width: min(100% - 40px, 620px);
    padding-top: 58px;
  }

  .units-hero-copy h1 {
    font-size: clamp(44px, 12vw, 68px);
  }

  .units-intro {
    grid-template-columns: 1fr;
    gap: 40px;
    width: min(100% - 40px, 650px);
  }

  .custom-section {
    width: min(100% - 40px, 680px);
  }

  .oem-service-section {
    padding-inline: 20px;
  }

  .custom-capabilities,
  .custom-case-strip,
  .custom-faq > div {
    grid-template-columns: 1fr;
  }

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

  .unit-family {
    width: min(100% - 40px, 680px);
  }

  .family-heading {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .family-heading > span {
    grid-column: auto;
  }

  .unit-feature,
  .unit-feature.is-reversed {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .unit-feature.is-reversed .unit-visual {
    order: 0;
  }

  .unit-visual {
    min-height: 480px;
    aspect-ratio: 4 / 3;
  }

  .units-cta {
    grid-template-columns: 1fr;
  }

  .units-cta > a {
    width: fit-content;
  }
}

@media (max-width: 520px) {
  .units-hero {
    min-height: 610px;
  }

  .units-hero-image {
    background-position: 40% center;
  }

  .units-hero-copy > span {
    font-size: 14px;
  }

  .units-intro,
  .unit-family {
    width: calc(100% - 32px);
  }

  .custom-section {
    width: calc(100% - 32px);
    padding-block: 70px;
  }

  .custom-section-head h2,
  .business-card h3 {
    font-size: clamp(28px, 8.5vw, 38px);
  }

  .business-card > div {
    padding: 34px 22px;
  }

  .business-card figure {
    min-height: 300px;
  }

  .custom-process ol {
    grid-template-columns: 1fr;
  }

  .units-intro {
    padding-block: 76px;
  }

  .units-intro h2,
  .family-heading h2 {
    font-size: clamp(28px, 8vw, 38px);
  }

  .unit-index {
    grid-template-columns: 1fr;
  }

  .unit-index a {
    min-height: 86px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .unit-index a:last-child {
    border-bottom: 0;
  }

  .unit-family {
    padding-block: 76px;
  }

  .unit-visual {
    min-height: 300px;
    aspect-ratio: 1 / 0.88;
  }

  .unit-visual p {
    inset: auto 24px 22px;
  }

  .unit-content {
    padding: 40px 24px;
  }

  .unit-content h3 {
    font-size: clamp(26px, 8vw, 36px);
  }

  .unit-button {
    width: 100%;
    grid-template-columns: auto auto 1fr;
  }

  .unit-button span {
    justify-self: end;
  }

  .units-cta {
    padding-inline: 24px;
  }

  .units-cta > a {
    width: 100%;
  }
}

@media (max-width: 720px) {
  .business-section-head .units-kicker {
    font-size: clamp(36px, 12vw, 52px);
  }

  .business-section-head h2 {
    font-size: clamp(20px, 6vw, 26px);
  }
}

.business-page .custom-index {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.business-page .custom-index a {
  justify-content: center;
  text-align: center;
}

.business-page .custom-index a > span {
  display: grid;
  justify-items: center;
}

@media (prefers-reduced-motion: reduce) {
  .unit-visual img {
    transition: none;
  }
}