@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;700&display=swap');

:root {
  --blue: #082b68;
  --blue-deep: #061d49;
  --blue-light: #edf3fb;
  --yellow: #f8b500;
  --yellow-light: #fff4cc;
  --text: #101828;
  --muted: #667085;
  --line: #dfe5ed;
  --white: #ffffff;
  --max-width: clamp(1380px, 84vw, 1760px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: Inter, "Noto Sans SC", system-ui, sans-serif;
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }

.site-header {
  --header-height: 108px;
  height: var(--header-height);
  padding: 0 clamp(18px, 4vw, 64px);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid rgba(8,43,104,.08);
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
  transition: height .52s cubic-bezier(.22, .61, .36, 1), background .55s ease, border-color .55s ease, box-shadow .55s ease, backdrop-filter .55s ease;
}

.site-header.is-condensed {
  --header-height: 80px;
  height: var(--header-height);
  background: rgba(255,255,255,.96);
  box-shadow: 0 6px 24px rgba(8,43,104,.06);
}

.site-header.has-hero { margin-bottom: calc(0px - var(--header-height)); }

.site-header.is-over-hero {
  background: rgba(6, 22, 49, .42);
  border-bottom-color: rgba(255,255,255,.25);
  box-shadow: 0 8px 30px rgba(0,0,0,.12);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  backdrop-filter: blur(18px) saturate(140%);
}

.brand {
  grid-column: 2;
  grid-row: 1;
  justify-self: center;
  z-index: 2;
  transition: transform .52s cubic-bezier(.22, .61, .36, 1);
}

.brand img {
  width: 164px;
  max-height: 78px;
  object-fit: contain;
  display: block;
  transition: width .52s cubic-bezier(.22, .61, .36, 1), max-height .52s cubic-bezier(.22, .61, .36, 1), background-color .55s ease, border-radius .55s ease, padding .55s ease;
}

.site-header.is-over-hero .brand img { padding: 4px 9px; border-radius: 9px; background: rgba(255,255,255,.94); }

.site-header.is-condensed .brand img { width: 126px; max-height: 58px; }

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 2.5vw, 42px);
  font-size: 15px;
  transition: font-size .52s cubic-bezier(.22, .61, .36, 1), gap .52s cubic-bezier(.22, .61, .36, 1);
}

.site-header .main-nav a[href*="cases.html"],
.site-header .main-nav a[href*="news.html"],
.site-header .main-nav a[data-i18n="nav.applications"],
.site-header .main-nav a[href="index.html#applications"] { display: none; }

.site-header.is-condensed .main-nav { gap: clamp(18px, 2vw, 32px); font-size: 13px; }

.nav-left {
  grid-column: 1;
  grid-row: 1;
  justify-self: start;
}

.nav-right {
  grid-column: 3;
  grid-row: 1;
  justify-self: end;
}

.main-nav a {
  position: relative;
  color: var(--blue-deep);
  transition: color .55s ease;
}

.site-header.is-over-hero .main-nav a { color: #fff; }

.main-nav a:not(.nav-contact)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -9px;
  width: 0;
  height: 2px;
  background: var(--yellow);
  transition: width .25s ease;
}

.main-nav a:hover::after { width: 100%; }
.main-nav a[aria-current="page"]::after { width: 100%; }

.nav-contact {
  padding: 12px 20px;
  border: 1px solid var(--blue);
  border-radius: 999px;
}

.site-header.is-over-hero .nav-contact { border-color: rgba(255,255,255,.8); }
.site-header.is-over-hero .nav-contact:hover { background: rgba(255,255,255,.16); color: #fff; }

.site-header.is-condensed .nav-contact { padding: 10px 17px; }

.nav-contact:hover {
  background: var(--blue);
  color: white;
}

.language-toggle {
  border: 0;
  background: transparent;
  padding: 8px 0;
  font: inherit;
  color: var(--blue-deep);
  cursor: pointer;
  letter-spacing: .04em;
  transition: color .55s ease;
}

.site-header.is-over-hero .language-toggle { color: #fff; }

.language-toggle .lang-en {
  opacity: .42;
}

.language-toggle.is-en .lang-cn {
  opacity: .42;
}

.language-toggle.is-en .lang-en {
  opacity: 1;
  font-weight: 600;
}

.menu-toggle { display: none; }
.menu-toggle span { transition: background-color .55s ease; }
.site-header.is-over-hero .menu-toggle span { background: #fff; }


.section {
  width: min(var(--max-width), calc(100% - 48px));
  margin: 0 auto;
}

.hero {
  position: relative;
  min-height: max(680px, 100vh);
  min-height: max(680px, 100svh);
  overflow: hidden;
  isolation: isolate;
  color: white;
  background: var(--blue-deep);
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(0, 0, 0, .70) 0%, rgba(0, 0, 0, .48) 48%, rgba(0, 0, 0, .34) 100%);
  pointer-events: none;
}

.hero-content {
  min-height: inherit;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-top: clamp(36px, 8vw, 112px);
  padding-bottom: clamp(36px, 8vw, 112px);
}

.eyebrow, .section-label {
  color: var(--blue);
  font-size: 12px;
  letter-spacing: .16em;
  font-weight: 700;
}

.hero h1 {
  margin: 18px 0 24px;
  font-size: clamp(58px, 6.2vw, 100px);
  line-height: 1.04;
  letter-spacing: -.055em;
  font-weight: 500;
  text-shadow: 0 3px 25px rgba(1, 17, 45, .64);
}

.hero h1 span { color: #dce8fa; }

.hero .eyebrow {
  color: #e6f2ff;
  letter-spacing: .18em;
  text-shadow: 0 2px 14px rgba(1, 17, 45, .75);
}

.hero-text {
  max-width: 480px;
  color: #f1f6fd;
  font-size: clamp(16px, 1.15vw, 18px);
  line-height: 1.8;
  text-shadow: 0 2px 18px rgba(1, 17, 45, .78);
}

.hero-copy { width: min(560px, 48%); }

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  gap: 20px;
  align-items: center;
  padding: 15px 22px;
  border-radius: 999px;
}

.button-primary {
  color: var(--blue-deep);
  background: var(--yellow);
}

.button-primary:hover { background: #ffd24d; }

.hero-text-link { color: white; }

.hero-index {
  position: absolute;
  right: 0;
  bottom: 30px;
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 10px;
  letter-spacing: .15em;
  color: rgba(255,255,255,.72);
}

.hero-index span:first-child {
  color: var(--yellow);
  font-size: 13px;
  font-weight: 700;
}

.text-link {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  font-weight: 600;
  color: var(--blue);
}

.text-link span { transition: transform .25s ease; }
.text-link:hover span { transform: translate(3px, -3px); }

.section-heading h2,
.about h2,
.technology h2,
.contact h2 {
  margin: 0;
  font-size: clamp(42px, 5.4vw, 78px);
  line-height: 1.05;
  letter-spacing: -.05em;
  font-weight: 500;
}


.products, .applications {
  padding: clamp(76px, 8vw, 116px) 0 clamp(92px, 11vw, 158px);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: clamp(24px, 4vw, 56px);
  margin-bottom: 54px;
}

.section-heading h2 { margin-top: 16px; }

.section-heading > p {
  max-width: 390px;
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.listing-page .section-heading,
.news-page .section-heading,
.contact-page .section-heading {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: clamp(28px, 4vw, 60px);
}
.listing-page .section-heading > p,
.news-page .section-heading > p,
.contact-page .section-heading > p { width: 100%; max-width: none; }
.bilingual-intro { display: grid; gap: 10px; text-align: right; }
.bilingual-intro > span:first-child { font-size: 16px; line-height: 1.75; }
.bilingual-intro > span[lang="en"] { color: #718097; font-size: 14px; line-height: 1.65; }

.featured-product {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 690px;
  padding: 70px 64px 150px;
  overflow: hidden;
  isolation: isolate;
  color: #fff;
  background: linear-gradient(112deg, #07182b 0%, #0b223b 58%, #102b48 100%);
}
.featured-product::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(ellipse at 72% 45%, rgba(75, 137, 194, .24), transparent 42%), linear-gradient(0deg, rgba(2, 12, 24, .46), transparent 34%);
}
.featured-product-visual {
  position: absolute;
  z-index: 0;
  top: 0;
  right: -2%;
  bottom: 76px;
  width: 73%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  pointer-events: none;
}
.featured-product-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #081a2d 0%, rgba(8, 26, 45, .84) 9%, transparent 43%), linear-gradient(0deg, rgba(5, 18, 32, .45), transparent 26%);
}
.featured-product-visual img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  object-position: right center;
  filter: drop-shadow(0 28px 40px rgba(0, 0, 0, .34));
}
.featured-product-copy { position: relative; z-index: 1; width: min(48%, 540px); padding-bottom: 8px; }
.featured-product-kicker { color: #f8b500; font-size: 11px; font-weight: 700; letter-spacing: .19em; }
.featured-product-copy h3 { margin: 20px 0 4px; font-size: clamp(52px, 6.2vw, 86px); font-weight: 500; letter-spacing: -.065em; line-height: 1; }
.featured-product-copy h4 { margin: 14px 0 20px; font-size: clamp(23px, 2.4vw, 32px); font-weight: 400; letter-spacing: -.035em; }
.featured-product-copy > p { max-width: 470px; margin: 0; color: rgba(237, 244, 251, .78); font-size: 16px; line-height: 1.85; }
.featured-product-applications { max-width: 475px; margin-top: 25px; padding-left: 15px; border-left: 2px solid #f8b500; color: rgba(255,255,255,.88); font-size: 13px; line-height: 1.8; }
.featured-product-applications span { display: block; margin-bottom: 3px; color: rgba(255,255,255,.5); font-size: 10px; letter-spacing: .16em; }
.featured-product-link { display: inline-flex; align-items: center; gap: 24px; margin-top: 29px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.62); color: #fff; font-size: 13px; letter-spacing: .04em; }
.featured-product-link span { font-size: 18px; transition: transform .25s ease; }
.featured-product-link:hover span { transform: translate(3px, -3px); }
.featured-product-specs { position: absolute; z-index: 1; right: 64px; bottom: 32px; left: 64px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); padding-top: 20px; border-top: 1px solid rgba(255,255,255,.2); }
.featured-product-specs > div { display: flex; flex-direction: column; gap: 7px; min-width: 0; padding: 0 24px; border-left: 1px solid rgba(255,255,255,.16); }
.featured-product-specs > div:first-child { padding-left: 0; border-left: 0; }
.featured-product-specs strong { color: #fff; font-size: clamp(17px, 1.65vw, 22px); font-weight: 500; letter-spacing: -.025em; white-space: nowrap; }
.featured-product-specs span { color: rgba(237,244,251,.62); font-size: 12px; line-height: 1.5; }

.product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr .26fr;
  gap: 12px;
  position: relative;
  overflow: hidden;
  transition: grid-template-columns 1.15s cubic-bezier(.22, .61, .36, 1);
  will-change: grid-template-columns;
}

.product-grid.active-feng {
  grid-template-columns: 1.15fr .85fr .26fr;
}

.product-grid.active-run {
  grid-template-columns: .85fr 1.15fr .26fr;
}

.product-grid.active-xing {
  grid-template-columns: 1fr 1fr .52fr;
}

.product-card {
  min-width: 0;
  min-height: 560px;
  padding: 0;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: var(--blue-deep);
  background: #eef3f8;
  isolation: isolate;
  transition:
    opacity 0.75s ease,
    transform 1.15s cubic-bezier(.22, .61, .36, 1),
    background 0.7s ease;
}

.product-card-feng { background: #dce7f4; }
.product-card-run { background: #e8eef5; }
.product-card-xing { background: #f5e7b9; }
.product-card-feng .product-image img { object-position: 50% 32%; transform: scale(1.84); }
.product-card-run .product-image img { object-position: 42% 0%; transform: scale(1.84); transform-origin: 50% 20%; }
.product-card-xing .product-image img { object-position: 42% 30%; }

/* Image */
.product-image {
  position: absolute;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background: #dce7f4;
}

.product-image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center center;
  padding: 0;
  opacity: 1;
  transform: scale(1.18);
  transition:
    transform 1.15s cubic-bezier(.22, .61, .36, 1),
    opacity .85s ease;
}

/* Frosted charcoal veil keeps product photography atmospheric while preserving text contrast. */
.product-image-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 18% 8%, rgba(255,220,160,.08), transparent 42%),
    linear-gradient(180deg, rgba(0,0,0,.12) 0%, rgba(0,0,0,.22) 46%, rgba(0,0,0,.52) 100%);
  -webkit-backdrop-filter: blur(1px) saturate(90%) contrast(1.02);
  backdrop-filter: blur(1px) saturate(90%) contrast(1.02);
  opacity: .82;
  transition:
    opacity .95s cubic-bezier(.22, .61, .36, 1),
    background .95s cubic-bezier(.22, .61, .36, 1);
}

.product-card-xing .product-image-overlay {
  background:
    radial-gradient(ellipse at 18% 8%, rgba(255,220,160,.07), transparent 42%),
    linear-gradient(180deg, rgba(0,0,0,.1) 0%, rgba(0,0,0,.2) 46%, rgba(0,0,0,.48) 100%);
}

.product-card.is-active .product-image-overlay {
  opacity: .88;
  background:
    radial-gradient(ellipse at 18% 8%, rgba(255,220,160,.09), transparent 42%),
    linear-gradient(180deg, rgba(0,0,0,.16) 0%, rgba(0,0,0,.28) 42%, rgba(0,0,0,.58) 100%);
}

.product-card.is-active .product-image img {
  transform: scale(1.35);
  opacity: 1;
}

.product-card-feng.is-active .product-image img { transform: scale(2.02); }
.product-card-run.is-active .product-image img { transform: scale(2.02); }
.product-card-xing.is-active .product-image img { transform: scale(1.22); }

/* Subtle highlight layer */
.product-image::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  background:
    linear-gradient(
      115deg,
      rgba(255,255,255,.14) 0%,
      rgba(255,255,255,0) 38%
    );
  opacity: .65;
  transition: opacity .9s ease;
}

.product-card.is-active .product-image::after {
  opacity: .9;
}

/* Inactive cards */
.product-grid.active-feng .product-card:not(.product-card-feng),
.product-grid.active-run .product-card:not(.product-card-run) {
  opacity: .78;
  transform: scale(.97);
}

/* Top line */
.card-topline {
  position: absolute;
  top: 28px;
  left: 30px;
  right: 30px;
  z-index: 4;
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  letter-spacing: .15em;
  color: white;
  opacity: .72;
  transition:
    opacity .7s ease,
    transform .8s cubic-bezier(.22, .61, .36, 1);
}

.product-card.is-active .card-topline {
  opacity: .96;
}

/* Content */
.card-content {
  padding: 0 34px 34px;
  position: relative;
  z-index: 4;
  width: 100%;
  color: white;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
  transform: translateY(0);
  transition:
    transform .95s cubic-bezier(.22, .61, .36, 1);
}

.product-card.is-active .card-content {
  transform: translateY(0);
}

.card-content h3 {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
  margin: 0;
  line-height: 1;
  font-weight: 500;
  letter-spacing: 0;
  color: white;
}

.series-title-row {
  display: flex;
  align-items: baseline;
  justify-content: flex-end;
  gap: 7px;
  white-space: nowrap;
}

.series-title-row > span {
  font-size: clamp(20px, 2.15vw, 28px);
  font-weight: 600;
  letter-spacing: .045em;
}

.series-title-row small {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .14em;
  opacity: .78;
}

.series-title-row.series-title-cn {
  align-items: baseline;
  gap: 5px;
}

.series-title-row.series-title-cn > span {
  font-size: clamp(32px, 3.3vw, 46px);
  font-weight: 500;
  margin: 0;
  letter-spacing: -.06em;
}

.series-title-row.series-title-cn small {
  font-size: 11px;
  letter-spacing: .1em;
}

.card-content p {
  max-width: min(560px, 100%);
  margin: 0;
  font-size: 18px;
  line-height: 1.8;
  color: white;
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity .72s ease .16s,
    transform .9s cubic-bezier(.22, .61, .36, 1) .16s;
}

.product-card.is-active .card-content p {
  display: block;
  margin-top: 16px;
  font-size: 18px;
  opacity: .96;
  transform: translateY(0);
}

.product-card .card-content p { display: none; }
.product-card.is-active .card-content h3 { margin-bottom: 0; }
.product-card-xing .card-content { padding-right: 18px; padding-left: 18px; }

.card-detail {
  display: inline-flex;
  margin-top: 20px;
  padding: 9px 15px;
  border: 1px solid rgba(255,255,255,.45);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: .06em;
  color: white;
  opacity: 0;
  transform: translateY(15px);
  transition:
    opacity .7s ease .26s,
    transform .85s cubic-bezier(.22, .61, .36, 1) .26s;
}

.product-card.is-active .card-detail {
  opacity: 1;
  transform: translateY(0);
}

.card-arrow {
  position: absolute;
  right: 30px;
  bottom: 28px;
  font-size: 28px;
  z-index: 5;
  color: white;
  transition:
    transform .7s cubic-bezier(.22, .61, .36, 1),
    color .5s ease;
}

.product-card.is-active .card-arrow {
  transform: translate(4px, -4px);
}

/* Product tiles use only their lower-right title and, when expanded, the description. */
.product-grid .product-card .card-topline,
.product-grid .product-card .card-detail,
.product-grid .product-card .card-arrow {
  display: none;
}


.technology {
  max-width: none;
  width: 100%;
  background: var(--blue-deep);
  color: white;
  padding: clamp(84px, 11vw, 150px) clamp(24px, 6vw, 88px);
}

.technology .section-label { color: var(--yellow); }

.tech-layout {
  max-width: var(--max-width);
  margin: 60px auto 0;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: clamp(36px, 10vw, 140px);
}

.technology h2 span { color: #9db4d8; }

.tech-copy .lead {
  font-size: 24px;
  line-height: 1.7;
  color: #dbe5f3;
  margin-top: 0;
}

.tech-list { margin-top: 70px; }

.tech-list > div {
  display: grid;
  grid-template-columns: 45px 1fr;
  gap: 10px;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,.18);
}

.tech-list span { color: var(--yellow); font-size: 12px; }
.tech-list strong { font-size: 20px; font-weight: 500; }
.tech-list em {
  grid-column: 2;
  color: #9db4d8;
  font-style: normal;
  margin-top: -8px;
}

.application-switcher {
  position: relative;
  display: flex;
  align-items: center;
  gap: 34px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.application-tab {
  position: relative;
  z-index: 1;
  padding: 0 0 17px;
  border: 0;
  background: transparent;
  color: #9aa8b9;
  font: inherit;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  cursor: pointer;
  transition: color .25s ease;
}

.application-tab span {
  margin-left: 8px;
  font-size: 13px;
  letter-spacing: 0;
}

.application-tab.is-active { color: var(--blue); }

.application-switcher-line {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 172px;
  height: 2px;
  background: var(--blue);
  transition: transform .35s cubic-bezier(.22, .61, .36, 1), width .35s ease;
}

.application-switcher.is-case .application-switcher-line {
  width: 174px;
  transform: translateX(206px);
}

.application-intro,
.case-panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 30px;
  margin-bottom: 25px;
}

.application-intro > span,
.case-panel-heading > div > span {
  color: var(--blue);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .15em;
}

.application-intro p,
.case-panel-heading p {
  max-width: 480px;
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.application-card {
  min-height: 300px;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  transition: background .3s ease, color .3s ease;
}

.application-card span { color: var(--blue); font-size: 12px; }
.application-card h3 {
  font-size: clamp(36px, 4vw, 60px);
  font-weight: 500;
  margin: auto 0 4px;
  letter-spacing: -.05em;
}
.application-card p { margin: 0; color: var(--muted); }
.application-card b {
  align-self: flex-end;
  font-size: 24px;
  color: var(--blue);
}
.application-card:hover { background: var(--blue); color: white; }
.application-card:hover span, .application-card:hover b { color: var(--yellow); }
.application-card:hover p { color: #c4d3e9; }

/* Editorial case cards on the homepage */
.case-editorial-grid {
  display: grid;
  grid-template-columns: 1.34fr .83fr .83fr;
  gap: 12px;
}

.case-story {
  min-width: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  background: #f1f5fa;
  color: var(--blue-deep);
  transition: transform .35s ease, background .35s ease;
}

.case-story-media {
  position: relative;
  height: 230px;
  overflow: hidden;
  background: #dae5f2;
}

.case-story-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(4, 28, 71, .38));
}

.case-story-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform .7s cubic-bezier(.22, .61, .36, 1);
}

.case-story:nth-child(2) .case-story-media img { object-position: 54% center; }
.case-story:nth-child(3) .case-story-media img { object-position: center; mix-blend-mode: multiply; }

.case-story-featured .case-story-media { height: 390px; }
.case-story-featured .case-story-media img { object-position: center; }
.case-story-media img[src$="cwdm-center-wavelength.svg"] { object-fit: contain; background: #fff; }

.case-story-copy {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 24px 26px 25px;
}

.story-meta {
  color: var(--blue);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
}

.case-story-featured .story-meta { color: var(--blue); }

.case-story h3 {
  margin: 17px 0 22px;
  font-size: clamp(24px, 2.3vw, 39px);
  font-weight: 500;
  line-height: 1.14;
  letter-spacing: -.05em;
}

.story-excerpt {
  margin: -8px 0 20px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.case-story:not(.case-story-featured) h3 { font-size: clamp(23px, 1.85vw, 31px); }
.technology-story:not(.case-story-featured) h3 { font-size: clamp(19px, 1.55vw, 25px); line-height: 1.22; letter-spacing: -.04em; }

.story-arrow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid rgba(8, 43, 104, .18);
  font-size: 12px;
  font-weight: 600;
}

.story-arrow b { font-size: 20px; font-weight: 400; transition: transform .25s ease; }
.case-story:hover { background: #e6eef8; transform: translateY(-5px); }
.case-story:hover .case-story-media img { transform: scale(1.045); }
.case-story:hover .story-arrow b { transform: translate(3px, -3px); }

.section-page-link {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 11px;
  margin-top: 30px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 600;
}
.section-page-link span { font-size: 20px; transition: transform .25s ease; }
.section-page-link:hover span { transform: translate(3px, -3px); }
.technology-link { max-width: var(--max-width); margin: 45px auto 0; color: white; }

.case-grid {
  display: grid;
  grid-template-columns: 1.2fr .9fr .9fr;
  gap: 12px;
}

.case-card {
  min-height: 420px;
  padding: 28px 30px 30px;
  display: flex;
  flex-direction: column;
  background: #edf3fb;
  color: var(--blue-deep);
  transition: transform .35s ease, background .35s ease, color .35s ease;
}

.case-card-featured {
  background: var(--blue-deep);
  color: white;
}

.case-card-number {
  color: currentColor;
  font-size: 10px;
  letter-spacing: .14em;
  opacity: .62;
}

.case-card-content { margin-top: auto; }
.case-tag {
  display: inline-flex;
  padding: 6px 10px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 10px;
  letter-spacing: .04em;
  opacity: .75;
}

.case-card h3 {
  margin: 18px 0 13px;
  font-size: clamp(27px, 2.55vw, 43px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -.05em;
}

.case-card p {
  margin: 0;
  color: currentColor;
  font-size: 14px;
  line-height: 1.75;
  opacity: .7;
}

.case-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 28px;
  padding-top: 15px;
  border-top: 1px solid currentColor;
  font-size: 12px;
  font-weight: 600;
}
.case-link b { font-size: 20px; font-weight: 400; }

.case-card:hover {
  background: var(--blue);
  color: white;
  transform: translateY(-5px);
}
.case-card:hover .case-tag { color: var(--yellow); }

.about {
  padding: clamp(92px, 12vw, 170px) 0;
  border-top: 1px solid var(--line);
}

.about-layout {
  margin-top: 70px;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: clamp(36px, 10vw, 140px);
}

.about-layout p {
  margin: 0 0 30px;
  font-size: 20px;
  line-height: 1.9;
  color: var(--muted);
}

.contact {
  width: 100%;
  background: var(--yellow);
  padding: clamp(80px, 10vw, 140px) clamp(24px, 6vw, 88px);
}

.contact-inner { max-width: var(--max-width); margin: 0 auto; }
.contact h2 { margin-top: 45px; color: var(--blue-deep); }
.contact h2 span { color: white; }

.contact-button {
  display: inline-flex;
  gap: 40px;
  align-items: center;
  margin-top: 55px;
  padding: 17px 23px;
  border-radius: 999px;
  background: var(--blue-deep);
  color: white;
}

.site-footer {
  padding: 26px clamp(18px, 4vw, 64px);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #8090a8;
  font-size: 12px;
}

/* News index */
.news-page { min-height: calc(100vh - 88px); padding: clamp(32px, 5vw, 70px) 0 clamp(96px, 12vw, 168px); }
.news-page .section-heading { margin-bottom: 76px; }
.news-page .section-heading h1 { margin: 16px 0 0; font-size: clamp(42px, 5.4vw, 78px); font-weight: 500; letter-spacing: -.05em; line-height: 1.05; }
.news-list { border-top: 1px solid var(--line); }
.news-item {
  display: grid;
  grid-template-columns: 160px 130px minmax(0, 1fr) 34px;
  align-items: center;
  gap: 34px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  transition: padding .3s ease, color .3s ease;
}
.news-item img { width: 160px; height: 102px; display: block; object-fit: cover; }
.news-item time, .news-item .news-type { color: var(--muted); font-size: 12px; }
.news-item .news-type { display: block; margin-bottom: 7px; color: var(--blue); font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.news-item h2 { margin: 0; font-size: clamp(25px, 3vw, 44px); font-weight: 500; letter-spacing: -.05em; line-height: 1.16; }
.news-item > b { color: var(--blue); font-size: 24px; font-weight: 400; transition: transform .25s ease; }
.news-item:hover { padding-left: 16px; color: var(--blue); }
.news-item:hover > b { transform: translate(3px, -3px); }

/* Listing and detail pages */
.listing-page { min-height: calc(100vh - 88px); padding: clamp(32px, 5vw, 70px) 0 clamp(96px, 12vw, 168px); }
.listing-page .section-heading { margin-bottom: 72px; }
.listing-page .section-heading h1 { margin: 16px 0 0; font-size: clamp(42px, 5.4vw, 78px); font-weight: 500; letter-spacing: -.05em; line-height: 1.05; }

.product-listing-grid, .insight-grid, .case-listing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.listing-product, .insight-card, .case-listing-card { display: flex; min-width: 0; flex-direction: column; background: #f1f5fa; color: var(--blue-deep); transition: transform .3s ease, background .3s ease; }
.listing-product { overflow: hidden; }
.listing-product img, .insight-card img, .case-listing-card img { width: 100%; height: 290px; display: block; object-fit: cover; background: #e2eaf3; }
.listing-product:nth-child(1) img, .listing-product:nth-child(3) img { object-fit: cover; }
.listing-product:nth-child(1) img { object-position: 65% 40.33%; }
.listing-product:nth-child(2) img { object-position: 50% 16.67%; }
.listing-product:nth-child(1) img { width: 110%; max-width: none; margin-left: -2.5%; }
.listing-product > div, .insight-card, .case-listing-card > div { padding: 24px; }
.listing-product > div, .case-listing-card > div { display: flex; flex: 1; flex-direction: column; }
.listing-product span, .insight-card > span, .case-listing-card span { color: var(--blue); font-size: 10px; font-weight: 700; letter-spacing: .1em; }
.listing-product h2, .insight-card h2, .case-listing-card h2 { margin: 17px 0 12px; font-size: clamp(28px, 2.5vw, 42px); font-weight: 500; line-height: 1.12; letter-spacing: -.05em; }
.listing-product p, .insight-card p, .case-listing-card p { margin: 0; color: var(--muted); line-height: 1.75; }
.listing-product b, .insight-card b, .case-listing-card b { display: block; margin-top: auto; padding-top: 25px; font-size: 12px; }
.listing-product:hover, .insight-card:hover, .case-listing-card:hover { background: #e5eef9; transform: translateY(-5px); }

.insight-card img { margin: -24px -24px 24px; width: calc(100% + 48px); height: 225px; }
.insight-card h2 { font-size: clamp(28px, 2.2vw, 36px); }
.case-listing-featured { grid-column: span 2; }
.case-listing-featured img { height: 385px; }
.case-listing-featured h2 { font-size: clamp(34px, 3.4vw, 57px); }

.detail-page { max-width: 1040px; padding: 64px 0 clamp(96px, 12vw, 168px); }
.back-link { display: inline-flex; margin: 8px 0 65px; color: var(--blue); font-size: 13px; font-weight: 600; }
.detail-article { max-width: 860px; margin: 0 auto; }
.detail-kicker { color: var(--blue); font-size: 11px; font-weight: 700; letter-spacing: .13em; }
.detail-article h1 { max-width: none; margin: 18px 0 24px; font-size: clamp(46px, 6.1vw, 82px); font-weight: 500; letter-spacing: -.06em; line-height: 1.04; }
.detail-lead { max-width: none; margin: 0 0 46px; color: var(--muted); font-size: clamp(17px, 1.4vw, 21px); line-height: 1.8; }
.detail-cover { width: 100%; max-height: 480px; display: block; object-fit: cover; background: #e5ecf5; }
.detail-body { max-width: none; margin: 55px 0 0; font-size: 17px; line-height: 2; }
.detail-body p { margin: 0 0 26px; }
.detail-body h2 { margin: 54px 0 20px; color: var(--blue-deep); font-size: 28px; font-weight: 500; letter-spacing: -.04em; }
.detail-body h2[id] { scroll-margin-top: 34px; }
.article-equation { margin: 30px 0; padding: 26px 30px; display: flex; flex-direction: column; align-items: center; gap: 8px; border-left: 3px solid var(--yellow); background: #f2f6fb; color: var(--blue-deep); text-align: center; }
.article-equation > span { font-family: Georgia, "Times New Roman", serif; font-size: clamp(24px, 3.2vw, 36px); letter-spacing: .02em; }
.article-equation small { color: var(--muted); font-size: 13px; line-height: 1.7; }
.article-flow { margin: 24px 0 32px; padding: 18px 20px; display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 9px; background: #f2f6fb; color: var(--blue-deep); }
.article-flow span { padding: 6px 10px; border: 1px solid #d8e3f0; background: white; font-size: 13px; }
.article-flow b { color: var(--blue); font-weight: 400; }
.detail-body p.article-conclusion { margin: 36px 0; padding: 20px 24px; border-left: 3px solid var(--yellow); background: #f7f8fa; }
.article-figure { margin: 38px 0 46px; }
.article-figure img { width: 100%; height: auto; max-height: none; display: block; border: 1px solid #e4e9ef; background: #fff; }
.article-figure figcaption { margin-top: 12px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.article-figure-chart { margin-top: 28px; }
.article-table-wrap { margin: 22px 0 30px; overflow-x: auto; }
.article-data-table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.6; }
.article-data-table th, .article-data-table td { padding: 11px 16px; border-bottom: 1px solid #e5eaf0; text-align: left; }
.article-data-table th { color: var(--blue-deep); background: #f2f6fb; font-weight: 600; }
.article-data-table td:last-child, .article-data-table th:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.detail-cta { max-width: none; margin: 70px 0 0; padding: 30px; background: var(--blue-deep); color: white; }
.detail-cta span { color: var(--yellow); font-size: 10px; font-weight: 700; letter-spacing: .13em; }
.detail-cta strong { display: block; margin: 15px 0 22px; font-size: 22px; font-weight: 500; }
.detail-cta a { color: white; font-size: 13px; font-weight: 600; }

/* Contact page */
.contact-page { min-height: calc(100vh - 108px); padding: clamp(32px, 5vw, 70px) 0 clamp(96px, 12vw, 168px); }
.contact-page .section-heading { margin-bottom: 70px; }
.contact-page .section-heading h1 { margin: 16px 0 0; font-size: clamp(42px, 5.4vw, 78px); font-weight: 500; letter-spacing: -.05em; line-height: 1.05; }
.contact-info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.contact-info-card { min-height: 255px; padding: 28px; display: flex; flex-direction: column; background: #f0f5fa; }
.contact-info-primary { grid-row: span 2; position: relative; overflow: hidden; min-height: 0; padding: 0; aspect-ratio: 1054 / 1493; background: white; }
.contact-primary-image { position: absolute; inset: 0; width: 100%; height: 100%; display: block; object-fit: contain; object-position: center; }
.contact-card-top { display: flex; align-items: center; justify-content: space-between; min-height: 30px; }
.contact-card-top svg { width: 27px; height: 27px; fill: none; stroke: var(--blue); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.contact-info-card span { color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: .12em; }
.contact-info-primary span { color: var(--yellow); }
.contact-info-card h2 { margin: 16px 0; font-size: clamp(25px, 2.4vw, 38px); font-weight: 500; letter-spacing: -.05em; line-height: 1.13; }
.contact-info-card p { margin: auto 0 0; color: #52647a; font-size: clamp(16px, 1.35vw, 18px); line-height: 1.75; }
.contact-address { display: grid; gap: 7px; margin-top: auto; }
.contact-info-card .contact-address p { margin: 0; font-size: 14px; letter-spacing: 0; line-height: 1.5; }
.contact-info-card .contact-address-cn { color: #52647a; font-weight: 500; }
.contact-info-card .contact-address-en { color: #76869a; font-weight: 400; }
.contact-info-card .hours-en { color: #76869a; font-size: 14px; font-weight: 400; letter-spacing: 0; }
.contact-info-primary a { margin-top: auto; color: white; font-size: 13px; font-weight: 600; }

/* Product series detail: compact model choice, quick compare, and focused detail. */
.product-series-page { padding: 42px 0 110px; }
.product-series-page > .back-link { margin: 8px 0 45px; }
.series-intro { max-width: 850px; margin-bottom: 62px; }
.series-kicker, .series-section-heading > span, .content-eyebrow { color: var(--blue); font-size: 10px; font-weight: 700; letter-spacing: .15em; }
.series-intro h1 { margin: 14px 0 12px; font-size: clamp(54px, 7vw, 92px); font-weight: 500; letter-spacing: -.06em; line-height: 1; }
.series-intro p { max-width: 650px; margin: 0; color: var(--muted); font-size: 18px; line-height: 1.8; }
.series-section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: 20px; }
.series-section-heading h2 { margin: 0; font-size: 32px; font-weight: 500; letter-spacing: -.04em; }
.series-section-heading p { margin: 0; color: var(--muted); font-size: 13px; }
.series-intro { margin-bottom: 34px; }
.series-models { margin: 0 0 22px; padding: 0; overflow: visible; background: transparent; }
.model-tabs { display: flex; flex-wrap: wrap; gap: 12px; padding: 0; overflow: visible; background: transparent; }
.model-tab { position: relative; min-width: min(310px, 100%); min-height: 106px; padding: 10px; display: grid; grid-template-columns: 104px 25px minmax(0, 1fr) 22px; grid-template-rows: 1fr 1fr; align-items: center; gap: 0 10px; text-align: left; border: 1px solid #dce4ee; border-radius: 9px; background: #fff; color: var(--blue-deep); box-shadow: 0 3px 12px rgba(8,43,104,.035); cursor: pointer; transition: border-color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease; }
.model-tab > img { grid-column: 1; grid-row: 1 / 3; display: block; width: 104px; height: 84px; object-fit: contain; border-radius: 5px; background: #f0f4f8; }
.model-tab > span { grid-column: 2; grid-row: 1; color: #c38a00; font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.model-tab strong { grid-column: 3; grid-row: 1; font-size: 17px; font-weight: 650; white-space: nowrap; }
.model-tab em { grid-column: 2 / 4; grid-row: 2; margin-top: 3px; color: #78869a; font-size: 12px; font-style: normal; line-height: 1.35; }
.model-tab-arrow { grid-column: 4; grid-row: 1 / 3; justify-self: center; color: #9aa8b8; font-size: 18px; font-weight: 400; transition: color .25s ease, transform .25s ease; }
.model-tab:hover { z-index: 1; transform: translateY(-3px); border-color: #8ba4c6; box-shadow: 0 9px 22px rgba(8,43,104,.1); }
.model-tab:hover .model-tab-arrow { color: var(--blue); transform: translate(2px,-2px); }
.model-tab.is-active { border-color: var(--blue); background: #fff; box-shadow: inset 4px 0 0 var(--yellow), 0 6px 18px rgba(8,43,104,.09); }
.model-tab.is-active .model-tab-arrow { color: var(--blue); }
.model-tab:focus-visible { outline: 2px solid var(--yellow); outline-offset: 3px; }
.quick-compare { margin-bottom: 82px; }
.quick-compare .series-section-heading { display: block; margin-bottom: 16px; }
.quick-compare .series-section-heading > span { display: none; }
.quick-compare.is-collapsed { margin-bottom: 38px; }
.quick-compare .compare-toggle { position: relative; display: flex; align-items: center; justify-content: center; width: 100%; min-height: 64px; padding: 14px 60px; border: 1px solid #164588; border-left: 6px solid var(--yellow); border-radius: 8px; color: #fff; background: linear-gradient(105deg, #0a3478, #061d49 72%); box-shadow: 0 8px 22px rgba(6,29,73,.14); font: inherit; font-size: 15px; font-weight: 600; letter-spacing: .025em; cursor: pointer; transition: border-color .2s ease, background .2s ease, box-shadow .2s ease; }
.quick-compare .compare-toggle:hover { border-color: #2b5ba0; border-left-color: var(--yellow); background: linear-gradient(105deg, #12458f, #08275d 72%); box-shadow: 0 10px 26px rgba(6,29,73,.22); }
.quick-compare .compare-toggle.is-open { border-color: #164588; border-left-color: var(--yellow); color: #fff; background: linear-gradient(105deg, #0a3478, #061d49 72%); }
.quick-compare .compare-toggle b { position: absolute; right: 20px; display: grid; width: 30px; height: 30px; place-items: center; border-radius: 50%; color: var(--blue-deep); background: var(--yellow); font-size: 20px; font-weight: 400; line-height: 1; }
.compare-toggle:focus-visible { outline: 2px solid var(--yellow); outline-offset: 3px; }
.quick-compare.is-collapsed .series-section-heading { margin-bottom: 0; }
.compare-table { border-top: 1px solid var(--line); }
.compare-model-head, .compare-row { display: grid; grid-template-columns: minmax(120px, .6fr) repeat(2, 1fr); gap: 20px; padding: 15px 18px; border-bottom: 1px solid var(--line); }
.compare-model-head { align-items: start; background: #f3f6fa; color: var(--blue-deep); }
.compare-model-head > span, .compare-row > span { color: var(--muted); font-size: 11px; font-weight: 600; }
.compare-model-head strong { font-size: 14px; }
.compare-model-head small { display: block; margin-top: 3px; color: var(--muted); font-size: 11px; font-weight: 400; }
.compare-row { align-items: start; }
.compare-row p { margin: 0; color: var(--text); font-size: 13px; line-height: 1.65; }
.compare-row p + p { border-left: 1px solid var(--line); padding-left: 20px; }
.selected-product { scroll-margin-top: 100px; margin-bottom: 0; }
.selected-product-details { margin-top: 10px; }
.selected-product.model-slide-next, .selected-product-details.model-slide-next { animation: productModelSlideNext .42s cubic-bezier(.2,.7,.2,1) both; }
.selected-product.model-slide-prev, .selected-product-details.model-slide-prev { animation: productModelSlidePrev .42s cubic-bezier(.2,.7,.2,1) both; }
@keyframes productModelSlideNext { from { opacity: .35; transform: translateX(28px); } to { opacity: 1; transform: translateX(0); } }
@keyframes productModelSlidePrev { from { opacity: .35; transform: translateX(-28px); } to { opacity: 1; transform: translateX(0); } }
.selected-product-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 22px; }
.selected-product-heading h2 { margin: 10px 0 0; font-size: clamp(37px, 4.5vw, 60px); font-weight: 500; letter-spacing: -.055em; line-height: 1; }
.selected-product-heading h2 small { margin-left: 16px; color: var(--muted); font-size: 18px; font-weight: 400; letter-spacing: 0; }
.development-badge { padding: 7px 12px; border: 1px solid #e5ad18; border-radius: 999px; color: #916800; font-size: 11px; }
.product-showcase { display: grid; grid-template-columns: 1.12fr .88fr; min-height: clamp(460px, 42vw, 590px); overflow: hidden; border-radius: 10px 10px 0 0; background: #eef3f8; }
.product-showcase-image { min-height: inherit; position: relative; overflow: hidden; background: #dce7f4; }
.product-showcase-image img { width: 100%; height: 100%; min-height: inherit; display: block; object-fit: cover; }
.product-showcase-image > span { position: absolute; bottom: 15px; left: 18px; padding: 6px 9px; color: white; background: rgba(6,29,73,.66); font-size: 10px; }
.product-showcase-copy { align-self: center; padding: clamp(28px, 5vw, 70px); }
.product-showcase-copy > p:first-of-type { margin: 13px 0 26px; color: var(--blue); font-size: 18px; }
.product-showcase-copy h3 { margin: 0 0 16px; font-size: clamp(25px, 2.8vw, 38px); font-weight: 500; line-height: 1.25; letter-spacing: -.04em; }
.showcase-applications { margin-top: 22px; padding: 14px 0 0 16px; border-top: 1px solid #d4deea; border-left: 3px solid #e5a900; }
.showcase-applications > span { display: block; margin-bottom: 8px; color: var(--blue); font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.product-showcase-copy .showcase-intro { margin: 0; color: #173b60; font-size: clamp(17px, 1.45vw, 20px); font-weight: 550; line-height: 1.65; }
.product-detail-grid { display: grid; grid-template-columns: 1fr; gap: 12px; margin-top: 12px; }
.product-info-block { padding: 28px; background: #f6f8fb; }
.product-model-badge { display: flex; align-items: baseline; gap: 13px; margin: -8px 0 23px; color: #173b60; font-size: clamp(27px, 3.1vw, 40px); font-weight: 650; letter-spacing: -.04em; line-height: 1.05; }
.product-series-mark { color: #c88900; font-family: KaiTi, "楷体", STKaiti, serif; font-size: 1.18em; font-weight: 600; letter-spacing: .04em; }
.product-model-number { margin-left: 7px; color: #c88900; font-size: inherit; font-weight: 750; letter-spacing: -.055em; line-height: inherit; }
.product-info-block h3 { margin: 9px 0 19px; font-size: 23px; font-weight: 500; letter-spacing: -.035em; }
.product-info-block ul { margin: 0; padding: 0; list-style: none; }
.product-info-block li { padding: 10px 0; border-top: 1px solid var(--line); font-size: 14px; }
.product-essentials-content { display: grid; grid-template-columns: minmax(220px, .78fr) minmax(0, 1.45fr); gap: 38px; }
.product-essentials-content h4 { margin: 0 0 12px; color: var(--muted); font-size: 12px; font-weight: 600; letter-spacing: .08em; }
.product-essentials-content .product-feature-column li { position: relative; padding-left: 17px; }
.product-essentials-content .product-feature-column li::before { position: absolute; top: 18px; left: 0; width: 5px; height: 5px; border-radius: 50%; background: #e5a900; content: ''; }
.spec-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 0; }
.spec-list > div { display: flex; flex-direction: column; justify-content: space-between; gap: 12px; min-height: 92px; padding: 14px 16px; border: 1px solid #e4e9ef; background: #fff; }
.spec-list dt { color: var(--muted); }
.spec-list dd { margin: 0; font-size: 15px; line-height: 1.45; }
.spec-number { color: #102f52; font-size: clamp(22px, 2.2vw, 30px); font-weight: 650; letter-spacing: -.045em; line-height: 1; }
.product-applications-block { grid-column: span 2; }
.product-applications-block p { max-width: 1000px; margin: 0; padding-left: 16px; border-left: 3px solid #e5a900; color: #173b60; font-size: clamp(18px, 1.6vw, 22px); font-weight: 550; line-height: 1.7; }
.product-technical-visuals { margin-top: 76px; }
.product-technical-visuals > .series-section-heading { display: block; margin-bottom: 22px; }
.product-technical-visuals .series-section-heading h2 { margin-top: 8px; }
.technical-visual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.technical-visual-card { overflow: hidden; background: #f3f6fa; }
.technical-visual-art { height: 220px; position: relative; overflow: hidden; background: linear-gradient(135deg, #061d49, #123c7b 60%, #061d49); }
.technical-visual-art::before { content: ""; position: absolute; inset: 0; opacity: .2; background: repeating-linear-gradient(0deg, transparent 0 31px, rgba(201,228,255,.35) 32px), repeating-linear-gradient(90deg, transparent 0 55px, rgba(201,228,255,.22) 56px); }
.curve-axis { position: absolute; left: 12%; right: 8%; bottom: 20%; height: 1px; background: rgba(255,255,255,.45); }
.curve-axis::before { content: ""; position: absolute; left: 0; bottom: 0; width: 1px; height: 130px; background: rgba(255,255,255,.45); }
.curve-trace { position: absolute; left: 12%; right: 9%; bottom: 21%; height: 56%; border-top: 3px solid #43d4ff; transform: skewY(-19deg) translateY(42px); filter: drop-shadow(0 0 6px rgba(67,212,255,.75)); clip-path: polygon(0 80%, 12% 78%, 18% 20%, 29% 18%, 36% 76%, 44% 76%, 51% 14%, 62% 12%, 70% 76%, 78% 75%, 84% 30%, 100% 28%, 100% 34%, 85% 36%, 80% 81%, 67% 82%, 59% 19%, 47% 21%, 40% 82%, 31% 83%, 24% 24%, 20% 25%, 15% 84%, 0 86%); }
.technical-visual-art > i { position: absolute; right: 18px; bottom: 15px; color: rgba(255,255,255,.62); font-size: 10px; font-style: normal; }
.engineering-art { display: flex; align-items: center; justify-content: center; gap: 12px; }
.engineering-art > span { width: 75px; height: 145px; border: 1px solid rgba(158,217,255,.68); border-radius: 50% / 12%; background: linear-gradient(90deg, rgba(84,164,255,.08), rgba(98,209,255,.35), rgba(84,164,255,.06)); box-shadow: 0 0 25px rgba(70,177,255,.22), inset 0 0 22px rgba(70,177,255,.22); transform: perspective(180px) rotateY(-18deg); }
.engineering-art > span:nth-child(2) { height: 165px; transform: perspective(180px) rotateY(0); }
.engineering-art > span:nth-child(3) { transform: perspective(180px) rotateY(18deg); }
.engineering-art > i { right: auto; left: 20px; bottom: 15px; letter-spacing: .12em; }
.technical-visual-card > div:last-child { padding: 22px 24px 25px; }
.technical-visual-card h3 { margin: 8px 0; font-size: 19px; font-weight: 500; }
.technical-visual-card p { margin: 0; color: var(--muted); font-size: 13px; }
.series-contact { margin-top: 75px; }

/* Xing is a development showcase: keep the full machine image in an immersive, full-viewport hero. */
body.xing-immersive-page { height: 100vh; height: 100svh; overflow: hidden; background: #05080d; }
.site-header:has(+ main.product-series-xing) {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  background: rgba(6, 22, 49, .28);
  border-bottom-color: rgba(255,255,255,.2);
  -webkit-backdrop-filter: blur(14px) saturate(130%);
  backdrop-filter: blur(14px) saturate(130%);
}
.site-header:has(+ main.product-series-xing) .main-nav a,
.site-header:has(+ main.product-series-xing) .language-toggle { color: #fff; }
.site-header:has(+ main.product-series-xing) .nav-contact { border-color: rgba(255,255,255,.75); }
.site-header:has(+ main.product-series-xing) .menu-toggle span { background: #fff; }
.site-header:has(+ main.product-series-xing) .brand img { padding: 4px 9px; border-radius: 9px; background: rgba(255,255,255,.94); }
.product-series-page.product-series-xing { width: 100%; max-width: none; margin: 0; padding: 0; }
.product-series-xing .selected-product { margin: 0; }
.xing-hero { position: relative; display: grid; place-items: center; width: 100%; height: 100vh; height: 100svh; min-height: 100vh; min-height: 100svh; overflow: hidden; isolation: isolate; background: #05080d; }
.xing-hero-image { position: absolute; inset: 0; display: block; }
.xing-hero-image img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: 30% center; }
.xing-hero::after { content: ""; position: absolute; z-index: 0; inset: 0; pointer-events: none; background: linear-gradient(90deg, transparent 30%, rgba(3,8,15,.12) 48%, rgba(3,8,15,.24) 100%); }
.xing-back-link { position: absolute; z-index: 2; top: 128px; left: clamp(24px, 5vw, 72px); display: inline-flex; align-items: center; gap: 13px; padding: 13px 20px; border: 1px solid rgba(255,255,255,.48); border-radius: 999px; color: #fff; background: rgba(255,255,255,.12); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); font-size: 17px; font-weight: 500; text-shadow: 0 2px 14px rgba(0,0,0,.5); transition: color .2s ease, transform .2s ease, background .2s ease; }
.xing-back-link:hover { color: #fff; background: rgba(255,255,255,.22); transform: translateX(-3px); }
.xing-back-link span { font-size: 27px; line-height: .9; }
.xing-hero-copy { position: absolute; z-index: 1; top: 50%; right: clamp(48px, 8vw, 140px); width: min(42vw, 650px); transform: translateY(-50%); color: #fff; text-shadow: 0 3px 25px rgba(1,17,45,.64); }
.xing-hero-eyebrow { color: #e6f2ff; font-size: 11px; font-weight: 700; letter-spacing: .18em; text-shadow: 0 2px 14px rgba(1,17,45,.75); }
.xing-hero-copy h1 { margin: 18px 0 12px; font-size: clamp(46px, 5.2vw, 84px); font-weight: 500; line-height: 1.1; letter-spacing: -.055em; }
.xing-hero-copy h1 span { color: #dce8fa; }
.xing-hero-copy h1 .xing-highlight,
.xing-hero-subtitle .xing-highlight { color: #ffb21c; font-family: KaiTi, STKaiti, "Kaiti SC", serif; font-weight: 600; }
.xing-hero-copy h1 .xing-highlight { display: inline-block; font-size: 1.2em; line-height: .9; vertical-align: -.04em; text-shadow: 0 4px 24px rgba(255,152,0,.22); }
.xing-hero-subtitle .xing-highlight { font-size: 1.16em; }
.xing-hero-title-en { margin: 0; color: rgba(235,243,255,.82); font-size: clamp(17px, 1.7vw, 25px); line-height: 1.45; letter-spacing: .015em; }
.xing-hero-subtitle { display: grid; gap: 7px; margin: 28px 0 0; color: #f1f6fd; font-size: clamp(18px, 1.35vw, 21px); line-height: 1.7; }
.xing-hero-subtitle i { color: rgba(241,246,253,.76); font-size: clamp(13px, 1vw, 15px); font-style: normal; line-height: 1.6; }

@media (max-width: 900px) {
  .product-showcase { grid-template-columns: 1fr; }
  .product-showcase-image, .product-showcase-image img { min-height: 320px; max-height: 420px; }
  .featured-product { min-height: 900px; align-items: flex-end; padding: 48px 40px 164px; }
  .featured-product-visual { top: 12px; right: -9%; bottom: auto; width: 110%; height: 455px; }
  .featured-product-copy { width: 100%; max-width: 640px; margin-top: 438px; padding-bottom: 0; }
  .featured-product-specs { right: 40px; left: 40px; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 17px 0; }
  .featured-product-specs > div:nth-child(3) { padding-left: 0; border-left: 0; }
  .listing-page .section-heading,
  .news-page .section-heading,
  .contact-page .section-heading { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 600px) {
  .site-header:has(+ main.product-series-xing) { --header-height: 72px; height: 72px; }
  .product-series-page.product-series-xing { margin-top: 0; }
  .xing-hero-image img { object-position: 22% center; }
  .xing-hero::after { background: linear-gradient(0deg, rgba(3,8,15,.88), rgba(3,8,15,.38) 42%, transparent 76%); }
  .xing-back-link { top: 90px; left: 20px; gap: 10px; padding: 10px 15px; font-size: 15px; }
  .xing-back-link span { font-size: 23px; }
  .xing-hero-copy { top: auto; right: 22px; bottom: clamp(48px, 8vh, 82px); left: 22px; width: auto; transform: none; }
  .xing-hero-eyebrow { font-size: 9px; }
  .xing-hero-copy h1 { margin: 12px 0 8px; font-size: clamp(38px, 11vw, 54px); }
  .xing-hero-title-en { font-size: 16px; }
  .xing-hero-subtitle { gap: 5px; margin-top: 17px; font-size: 16px; }
  .xing-hero-subtitle i { font-size: 12px; }
  .product-series-page { padding-top: 30px; }
  .series-intro { margin-bottom: 44px; }
  .series-intro p { font-size: 16px; }
  .series-section-heading { align-items: flex-start; flex-direction: column; gap: 7px; }
  .series-section-heading h2 { font-size: 27px; }
  .model-tabs { display: grid; grid-template-columns: 1fr; gap: 9px; }
  .model-tab { width: 100%; min-height: 96px; padding: 8px; grid-template-columns: 90px 24px minmax(0, 1fr) 22px; gap: 0 8px; }
  .model-tab > img { width: 90px; height: 78px; }
  .model-tab strong { font-size: 16px; }
  .model-tab em { font-size: 11px; line-height: 1.35; }
  .series-models { margin-bottom: 18px; }
  .compare-model-head, .compare-row { grid-template-columns: 86px repeat(2, minmax(0, 1fr)); gap: 10px; padding: 13px 9px; }
  .compare-model-head strong { font-size: 12px; }
  .compare-model-head small { font-size: 10px; line-height: 1.4; }
  .compare-row > span { font-size: 10px; }
  .compare-row p { font-size: 11px; line-height: 1.5; overflow-wrap: anywhere; }
  .compare-row p + p { padding-left: 9px; }
  .quick-compare { margin-bottom: 58px; }
  .selected-product-heading h2 { font-size: 37px; }
  .selected-product-heading h2 small { display: block; margin: 7px 0 0; font-size: 15px; }
  .product-showcase-image, .product-showcase-image img { min-height: 245px; height: 245px; }
  .product-showcase-copy { padding: 25px; }
  .product-detail-grid, .technical-visual-grid { grid-template-columns: 1fr; }
  .product-applications-block { grid-column: auto; }
  .product-info-block { padding: 23px; }
  .product-essentials-content { grid-template-columns: 1fr; gap: 24px; }
  .spec-list { grid-template-columns: 1fr; }
  .product-technical-visuals { margin-top: 55px; }
  .series-contact { margin-top: 50px; }
}

@media (max-width: 900px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 108px;
    left: 0;
    right: 0;
    background: white;
    padding: 28px 6vw;
    flex-direction: column;
    align-items: flex-start;
    border-bottom: 1px solid var(--line);
  }

  .site-header.is-condensed .main-nav { top: 80px; }

  .nav-left.open,
  .nav-right.open { display: flex; }
  .site-header.is-over-hero .main-nav a { color: var(--blue-deep); }
  .menu-toggle {
    position: absolute;
    right: 4vw;
    top: 23px;
    z-index: 5;
    display: flex;
    width: 42px;
    height: 42px;
    border: 0;
    background: transparent;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
  }
  .menu-toggle span { display: block; width: 24px; height: 2px; background: var(--blue); }

  .hero { min-height: max(650px, 100vh); min-height: max(650px, 100svh); }
  .hero-content { justify-content: flex-start; }
  .hero-copy { width: min(620px, 78%); }
  .tech-layout, .about-layout { grid-template-columns: 1fr; gap: 45px; }
  .product-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .product-grid.active-feng,
  .product-grid.active-run,
  .product-grid.active-xing {
    grid-template-columns: 1fr;
  }

  .product-grid.active-feng .product-card:not(.product-card-feng),
  .product-grid.active-run .product-card:not(.product-card-run),
  .product-grid.active-xing .product-card:not(.product-card-xing) {
    opacity: 1;
    transform: none;
  }

  .product-card {
    min-height: 420px;
  }

  .product-card .card-content {
    transform: translateY(0);
  }

  .product-card .card-content p {
    display: block;
    margin-top: 16px;
  }

  .product-card .card-content p,
  .product-card .card-detail {
    opacity: 1;
    transform: none;
  }

  .case-grid { grid-template-columns: 1fr; }
  .case-card { min-height: 320px; }
  .case-editorial-grid { grid-template-columns: 1.25fr 1fr; }
  .case-story-featured { grid-row: span 2; }
  .case-story-featured .case-story-media { height: 100%; min-height: 330px; }
  .case-story-featured .case-story-copy { position: absolute; align-self: stretch; bottom: 0; color: white; background: linear-gradient(0deg, rgba(3, 20, 53, .88), transparent); }
  .case-story-featured .story-meta { color: #d8e8ff; }
  .product-listing-grid, .insight-grid, .case-listing-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-info-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .site-header, .site-header.is-condensed { --header-height: 72px; height: var(--header-height); }
  .brand img, .site-header.is-condensed .brand img { width: 112px; max-height: 54px; }
  .main-nav { top: 72px; }
  .site-header.is-condensed .main-nav { top: 72px; }
  .nav-left { left: 0; }
  .nav-right { left: 0; }

  .hero { min-height: max(620px, 100vh); min-height: max(620px, 100svh); }
  .hero-content { align-items: flex-end; padding-bottom: 80px; }
  .hero-copy { width: 100%; }
  .hero h1 { font-size: 52px; }
  .hero-background { object-position: 42% center; }
  .hero-index { display: none; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }

  .featured-product { min-height: 1010px; padding: 38px 25px 164px; }
  .featured-product-visual { top: 8px; right: -33%; width: 145%; height: 385px; }
  .featured-product-visual::after { background: linear-gradient(0deg, #081a2d 0%, transparent 22%); }
  .featured-product-copy { margin-top: 370px; }
  .featured-product-copy h3 { font-size: clamp(48px, 13vw, 68px); }
  .featured-product-copy h4 { margin: 11px 0 15px; }
  .featured-product-copy > p { font-size: 15px; }
  .featured-product-applications { margin-top: 18px; }
  .featured-product-specs { right: 25px; bottom: 25px; left: 25px; gap: 15px 0; }
  .featured-product-specs > div { padding: 0 10px; }
  .featured-product-specs > div:nth-child(odd) { padding-left: 0; border-left: 0; }
  .featured-product-specs strong { font-size: 16px; }
  .featured-product-specs span { font-size: 11px; }

  .products, .applications, .about { padding: 80px 0; }
  .section-heading { align-items: flex-start; flex-direction: column; margin-bottom: 35px; }
  .application-grid { grid-template-columns: 1fr; }
  .application-switcher { gap: 20px; overflow-x: auto; }
  .application-tab { white-space: nowrap; }
  .application-switcher-line { width: 172px; }
  .application-switcher.is-case .application-switcher-line { transform: translateX(192px); }
  .application-intro, .case-panel-heading { align-items: flex-start; flex-direction: column; }
  .case-panel-heading .text-link { margin-top: -10px; }
  .case-card { min-height: 330px; }
  .case-editorial-grid { grid-template-columns: 1fr; }
  .case-story-featured { grid-row: auto; }
  .case-story-featured .case-story-media { height: 290px; min-height: 0; }
  .case-story-featured .case-story-copy { position: static; color: var(--blue-deep); background: transparent; }
  .case-story-media { height: 210px; }
  .news-page { padding: 32px 0 80px; }
  .news-page .section-heading { margin-bottom: 46px; }
  .news-item { grid-template-columns: 96px 1fr 28px; gap: 16px; }
  .news-item img { width: 96px; height: 80px; grid-column: 1; grid-row: span 2; }
  .news-item time { grid-column: 2; grid-row: 1; }
  .news-item > div { grid-column: 2; grid-row: 2; }
  .news-item > b { grid-column: 3; grid-row: 2; }
  .listing-page { padding: 32px 0 80px; }
  .listing-page .section-heading { margin-bottom: 45px; }
  .product-listing-grid, .insight-grid, .case-listing-grid { grid-template-columns: 1fr; }
  .listing-product img, .insight-card img, .case-listing-card img, .case-listing-featured img { height: 230px; }
  .case-listing-featured { grid-column: auto; }
  .detail-page { padding: 35px 0 80px; }
  .back-link { margin-bottom: 42px; }
  .detail-article h1 { font-size: 43px; }
  .detail-lead { margin-bottom: 34px; }
  .detail-cover { max-height: 300px; }
  .detail-body { margin-top: 38px; font-size: 16px; }
  .contact-page { padding: 32px 0 80px; }
  .contact-page .section-heading { margin-bottom: 45px; }
  .contact-info-grid { grid-template-columns: 1fr; }
  .contact-info-card, .contact-info-primary { grid-row: auto; min-height: 210px; }

  .technology { padding: 80px 6vw; }
  .tech-layout { margin-top: 40px; }
  .tech-list { margin-top: 45px; }

  .contact { padding: 80px 6vw; }
  .contact h2 { margin-top: 35px; font-size: 44px; }
  .site-footer { flex-direction: column; }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}