:root {
  --paper: #f6f7f8;
  --white: #ffffff;
  --graphite: #111820;
  --graphite-soft: #1b2731;
  --alloy: #7d8992;
  --alloy-text: #66727b;
  --line: #d7dde1;
  --line-dark: #394650;
  --film-blue: #0b5a7c;
  --signal-blue: #38a0c7;
  --pale-blue: #e7f2f6;
  --success: #176b63;
  --shadow: 0 28px 80px rgba(17, 24, 32, 0.12);
  --display: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --shell: min(1320px, calc(100vw - 96px));
  --ease: cubic-bezier(.2, .7, .2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  color: var(--graphite);
  background: var(--paper);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

img,
picture {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

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

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button,
select {
  cursor: pointer;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(56, 160, 199, .62);
  outline-offset: 4px;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--graphite);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.visually-hidden {
  position: absolute !important;
  overflow: hidden !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  border: 0 !important;
  margin: -1px !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.section {
  padding-block: clamp(88px, 10vw, 156px);
}

.section-tight {
  padding-block: clamp(64px, 7vw, 104px);
}

.section-white {
  background: var(--white);
}

.section-dark {
  color: var(--white);
  background: var(--graphite);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .13em;
  line-height: 1.4;
  text-transform: uppercase;
}

.section-dark .eyebrow,
.eyebrow-light {
  color: #8fd1e8;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 650;
  letter-spacing: -.055em;
  line-height: 1.08;
}

h1 {
  font-size: clamp(56px, 6.8vw, 104px);
}

h2 {
  font-size: clamp(40px, 4.7vw, 72px);
}

h3 {
  font-size: clamp(24px, 2.25vw, 34px);
}

.lede {
  max-width: 760px;
  color: #5f6b74;
  font-size: clamp(18px, 1.5vw, 22px);
  line-height: 1.8;
}

.section-dark .lede {
  color: #b8c3ca;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 13px 22px;
  border: 1px solid var(--graphite);
  border-radius: 2px;
  background: transparent;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .01em;
  transition: color .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}

.button:hover {
  transform: translateY(-2px);
}

.button-dark {
  color: var(--white);
  background: var(--graphite);
}

.button-blue {
  color: var(--white);
  border-color: var(--film-blue);
  background: var(--film-blue);
}

.button-light {
  color: var(--white);
  border-color: rgba(255, 255, 255, .55);
}

.button-small {
  min-height: 44px;
  padding: 10px 18px;
  font-size: 13px;
}

.text-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid currentColor;
  font-weight: 700;
}

.text-link span {
  color: var(--film-blue);
}

.button-row,
.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Header */
.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid rgba(215, 221, 225, .9);
  background: rgba(246, 247, 248, .92);
  backdrop-filter: blur(18px);
  transition: box-shadow .3s var(--ease), background .3s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 12px 32px rgba(17, 24, 32, .06);
}

.header-inner {
  display: grid;
  min-height: 86px;
  align-items: center;
  grid-template-columns: minmax(220px, 1fr) auto auto;
  gap: 34px;
}

.brand {
  display: inline-flex;
  width: min(245px, 22vw);
  min-height: 44px;
  align-items: center;
}

.brand img {
  width: 100%;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 2.4vw, 40px);
}

.desktop-nav a {
  position: relative;
  padding-block: 30px 27px;
  color: #34414b;
  font-size: 14px;
  font-weight: 700;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: 20px;
  left: 0;
  height: 2px;
  background: var(--film-blue);
  content: '';
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .25s var(--ease);
}

.desktop-nav a:hover::after,
.desktop-nav a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 0;
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  margin: 4px auto;
  background: var(--graphite);
  transition: transform .25s var(--ease);
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(5px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-5px) rotate(-45deg);
}

.mobile-menu {
  position: absolute;
  z-index: 99;
  top: 100%;
  right: 0;
  left: 0;
  height: calc(100vh - 86px);
  height: calc(100dvh - 86px);
  overflow-y: auto;
  padding: 44px 32px;
  background: var(--white);
  overscroll-behavior: contain;
}

.mobile-menu nav {
  display: grid;
}

.mobile-menu a {
  display: flex;
  min-height: 62px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  font-size: 22px;
  font-weight: 650;
}

.mobile-menu a[aria-current="page"] {
  color: var(--film-blue);
}

/* Footer */
.site-footer {
  color: #dce4e9;
  background: #0b1218;
}

.footer-main {
  display: grid;
  padding-block: 76px 64px;
  grid-template-columns: 1.1fr 1fr;
  gap: 90px;
}

.footer-brand {
  display: flex;
  width: 260px;
  min-height: 44px;
  align-items: center;
}

.footer-statement {
  max-width: 520px;
  margin: 36px 0 0;
  color: var(--white);
  font-family: var(--display);
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 650;
  letter-spacing: -.045em;
  line-height: 1.2;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-links strong {
  display: block;
  margin-bottom: 22px;
  color: var(--white);
  font-size: 13px;
}

.footer-links a {
  display: flex;
  min-height: 44px;
  align-items: center;
  color: #a8b5bd;
  font-size: 14px;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid #2b3740;
  color: #81909a;
  font-family: var(--mono);
  font-size: 11px;
}

.footer-bottom p {
  margin: 0;
}

/* Home hero */
.home-hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100svh - 86px);
  background: var(--white);
}

.home-hero::before {
  position: absolute;
  z-index: 0;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--line) 14%, var(--line) 86%, transparent);
  content: '';
}

.home-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: calc(100svh - 86px);
  align-items: center;
  grid-template-columns: .86fr 1.14fr;
}

.hero-copy {
  padding: 72px 68px 72px 0;
}

.hero-copy h1 {
  max-width: 680px;
  margin-bottom: 30px;
  font-size: clamp(58px, 6.3vw, 96px);
}

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

.hero-copy .lede {
  max-width: 590px;
  margin-bottom: 40px;
}

.hero-proof {
  display: grid;
  max-width: 590px;
  margin-top: 58px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.hero-proof span {
  display: block;
  color: var(--alloy-text);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
}

.hero-proof strong {
  display: block;
  margin-top: 6px;
  font-size: 14px;
}

.hero-visual {
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  position: relative;
  display: grid;
  height: min(78svh, 800px);
  min-height: 580px;
  align-items: center;
  padding: 44px 0 34px 50px;
  perspective: 1200px;
}

.hero-visual::before {
  position: absolute;
  inset: 7% 0 7% 8%;
  border: 1px solid var(--line);
  background: #edf0f2;
  content: '';
}

.hero-visual picture {
  position: relative;
  z-index: 1;
  overflow: hidden;
  height: 100%;
  transform: rotateX(var(--tilt-x)) rotateY(var(--tilt-y));
  transform-origin: center;
  transition: transform .5s var(--ease);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 55% center;
}

.film-peel {
  position: absolute;
  z-index: 3;
  right: 3%;
  bottom: 5%;
  width: min(42%, 330px);
  padding: 15px 17px 14px 20px;
  border-left: 3px solid var(--signal-blue);
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 16px 40px rgba(17, 24, 32, .12);
  backdrop-filter: blur(14px);
}

.film-peel::before {
  position: absolute;
  top: 0;
  left: -3px;
  width: 48px;
  height: 3px;
  background: var(--signal-blue);
  content: '';
}

.film-peel span {
  display: block;
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
}

.film-peel strong {
  font-size: 14px;
}

.capability-rail {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.capability-rail .shell {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.capability-step {
  min-height: 138px;
  padding: 27px 30px;
  border-left: 1px solid var(--line);
}

.capability-step:last-child {
  border-right: 1px solid var(--line);
}

.capability-step span {
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 10px;
}

.capability-step strong {
  display: block;
  margin-top: 10px;
  font-size: 18px;
}

.capability-step p {
  margin: 4px 0 0;
  color: var(--alloy-text);
  font-size: 13px;
}

/* Shared section structures */
.section-heading {
  display: grid;
  margin-bottom: clamp(46px, 6vw, 86px);
  align-items: end;
  grid-template-columns: 1.2fr .8fr;
  gap: 72px;
}

.section-heading h2 {
  max-width: 860px;
  margin-bottom: 0;
}

.section-heading .lede {
  margin-bottom: 0;
}

.split-feature {
  display: grid;
  align-items: stretch;
  grid-template-columns: 1fr 1fr;
}

.split-feature > * {
  min-width: 0;
}

.split-feature-media {
  min-height: 600px;
  background: #e7ebee;
}

.split-feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.split-feature-copy {
  display: flex;
  min-height: 600px;
  flex-direction: column;
  justify-content: center;
  padding: clamp(48px, 7vw, 112px);
  background: var(--white);
}

.split-feature-copy h2 {
  max-width: 680px;
}

.split-feature-copy p {
  max-width: 620px;
  color: #5f6b74;
}

.metric-line {
  display: grid;
  margin-top: 34px;
  border-top: 1px solid var(--line);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric-line div {
  min-width: 0;
  padding: 20px 20px 0 0;
}

.metric-line span {
  display: block;
  color: var(--alloy-text);
  font-family: var(--mono);
  font-size: 10px;
}

.metric-line strong {
  font-size: 15px;
  overflow-wrap: anywhere;
}

/* Battery viewer */
.battery-stage {
  padding-bottom: clamp(88px, 10vw, 156px);
  color: var(--white);
  background: var(--graphite);
}

.battery-stage-intro {
  padding-block: clamp(88px, 9vw, 136px) 54px;
}

.battery-viewer {
  display: grid;
  min-height: 690px;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  grid-template-columns: minmax(0, 1.38fr) minmax(360px, .62fr);
}

.battery-canvas {
  position: sticky;
  top: 88px;
  display: flex;
  overflow: hidden;
  height: calc(100svh - 108px);
  min-height: 620px;
  align-items: center;
  border-right: 1px solid var(--line-dark);
  background: #f1eee8;
  justify-content: center;
}

.battery-scene {
  position: relative;
  width: min(100%, calc((100svh - 108px) * 1.5));
  aspect-ratio: 3 / 2;
  flex: 0 0 auto;
}

.battery-scene picture,
.battery-scene img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

.battery-scene img {
  object-fit: contain;
  object-position: center;
}

.battery-levels {
  position: absolute;
  z-index: 4;
  top: 28px;
  left: 28px;
  display: flex;
  gap: 6px;
}

.battery-levels button,
.catalog-filter button {
  min-height: 44px;
  padding: 9px 14px;
  border: 1px solid rgba(255, 255, 255, .26);
  border-radius: 999px;
  color: #c4d0d7;
  background: rgba(10, 18, 24, .58);
  font-size: 12px;
  backdrop-filter: blur(12px);
}

.battery-levels button.is-active {
  color: var(--graphite);
  border-color: var(--white);
  background: var(--white);
}

.hotspot {
  position: absolute;
  z-index: 5;
  top: var(--y);
  left: var(--x);
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .82);
  border-radius: 50%;
  color: var(--white);
  background: rgba(17, 24, 32, .74);
  box-shadow: 0 0 0 0 rgba(56, 160, 199, .35);
  font-family: var(--mono);
  font-size: 10px;
  transform: translate(-50%, -50%);
  transition: background .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}

.hotspot::after {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal-blue);
  content: '';
}

.hotspot span {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  width: max-content;
  max-width: 180px;
  padding: 6px 9px;
  color: var(--white);
  background: rgba(17, 24, 32, .86);
  font-family: var(--body);
  font-size: 11px;
  line-height: 1.4;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 5px);
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}

.hotspot:hover span,
.hotspot:focus-visible span,
.hotspot.is-active span {
  opacity: 1;
  transform: translate(-50%, 0);
}

.hotspot.is-active {
  background: var(--film-blue);
  box-shadow: 0 0 0 10px rgba(56, 160, 199, .18);
  transform: translate(-50%, -50%) scale(1.08);
}

.hotspot-bluefilm { --x: 81%; --y: 53%; }
.hotspot-top { --x: 59%; --y: 43%; }
.hotspot-barrier { --x: 65.5%; --y: 53.5%; }
.hotspot-foam { --x: 70.5%; --y: 76%; }
.hotspot-cover { --x: 71%; --y: 26%; }
.hotspot-cooling { --x: 72%; --y: 68%; }
.hotspot-electrical { --x: 78%; --y: 36.5%; }

.battery-details {
  display: flex;
  min-height: 690px;
  flex-direction: column;
  padding: 48px clamp(34px, 4vw, 72px);
  justify-content: center;
  background: #0c141a;
}

.detail-meta {
  display: flex;
  margin-bottom: 34px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: #8fd1e8;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
}

.detail-status {
  padding: 5px 9px;
  border: 1px solid #355462;
  color: #b8c9d1;
  letter-spacing: 0;
}

.battery-details h3 {
  margin-bottom: 18px;
  font-size: clamp(36px, 3.5vw, 54px);
}

.battery-details > p {
  margin-bottom: 30px;
  color: #b8c3ca;
}

.detail-list {
  margin: 0 0 32px;
}

.detail-list div {
  padding: 16px 0;
  border-top: 1px solid #2c3942;
}

.detail-list dt {
  color: #98aab6;
  font-family: var(--mono);
  font-size: 10px;
}

.detail-list dd {
  margin: 4px 0 0;
  color: #e5ebee;
  font-size: 14px;
}

.detail-links {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
}

.battery-list {
  display: none;
}

.battery-fallback {
  margin-top: 40px;
}

.battery-fallback details {
  border-top: 1px solid var(--line-dark);
}

.battery-fallback summary {
  min-height: 58px;
  padding: 16px 0;
  cursor: pointer;
  font-weight: 700;
}

.battery-fallback p {
  color: #b8c3ca;
}

/* Product and solution chapters */
.chapter-list {
  border-top: 1px solid var(--line);
}

.chapter {
  display: grid;
  min-height: 360px;
  align-items: stretch;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 150px minmax(260px, .8fr) minmax(360px, 1.2fr) 90px;
}

.chapter-index {
  padding: 42px 30px;
  color: var(--film-blue);
  border-right: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
}

.chapter-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 46px clamp(34px, 4vw, 72px);
}

.chapter-copy h3 {
  max-width: 450px;
  margin-bottom: 20px;
  font-size: clamp(32px, 3.7vw, 54px);
}

.chapter-copy p {
  max-width: 520px;
  margin-bottom: 0;
  color: #66727b;
}

.chapter-media {
  overflow: hidden;
  min-height: 360px;
  background: #e8ecee;
}

.chapter-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .65s var(--ease);
}

.chapter:hover .chapter-media img {
  transform: scale(1.025);
}

.chapter-arrow {
  display: grid;
  place-items: center;
  border-left: 1px solid var(--line);
  color: var(--film-blue);
  font-size: 26px;
}

.solution-band {
  background: var(--graphite);
}

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

.solution-card {
  display: flex;
  min-height: 390px;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(36px, 5vw, 70px);
  border-right: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  transition: background .3s var(--ease);
}

.solution-card:hover {
  background: #15232d;
}

.solution-card span {
  color: #78bfd8;
  font-family: var(--mono);
  font-size: 10px;
}

.solution-card h3 {
  max-width: 520px;
  margin: 42px 0 20px;
  color: var(--white);
  font-size: clamp(34px, 3.7vw, 54px);
}

.solution-card p {
  max-width: 560px;
  color: #a9b7c0;
}

.solution-card .text-link {
  align-self: flex-start;
  margin-top: 32px;
  color: var(--white);
}

.solution-card--visual {
  min-height: 0;
  overflow: hidden;
  justify-content: flex-start;
  padding: 0;
}

.solution-card-media {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: 0;
  border-bottom: 1px solid var(--line-dark);
  background: var(--white);
}

.solution-card-media::after {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, .16);
  content: "";
  pointer-events: none;
}

.solution-card-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: contain;
  object-position: center;
  filter: saturate(.96);
  transform: none;
  transition: filter .55s var(--ease);
}

.solution-card--visual:hover .solution-card-media img {
  filter: saturate(1);
  transform: none;
}

.solution-card-content {
  display: flex;
  min-height: 310px;
  flex: 1;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(34px, 4vw, 54px);
}

.solution-card--visual h3 {
  margin: 28px 0 16px;
}

.solution-card--visual p {
  margin-bottom: 0;
}

.solution-card--visual .text-link {
  margin-top: 30px;
  font-family: var(--body);
  font-size: 13px;
}

.proof-gallery {
  display: grid;
  gap: 18px;
  grid-template-columns: 1.35fr .65fr;
}

.proof-gallery figure {
  position: relative;
  overflow: hidden;
  min-height: 560px;
  margin: 0;
  background: #dfe4e7;
}

.proof-gallery figure:last-child {
  min-height: 560px;
}

.proof-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.proof-gallery figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 20px 24px;
  color: var(--white);
  background: linear-gradient(to top, rgba(8, 14, 19, .78), transparent);
  font-size: 13px;
}

.proof-note {
  margin-top: 18px;
  color: var(--alloy-text);
  font-size: 12px;
}

.cta-band {
  color: var(--white);
  background: var(--film-blue);
}

.cta-band .shell {
  display: grid;
  min-height: 420px;
  align-items: center;
  grid-template-columns: 1fr auto;
  gap: 72px;
}

.cta-band h2 {
  max-width: 900px;
  margin-bottom: 18px;
}

.cta-band p {
  max-width: 720px;
  margin-bottom: 0;
  color: #cfe7f0;
  font-size: 18px;
}

/* Internal page hero */
.page-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(88px, 9vw, 144px);
  background: var(--white);
}

.page-hero-grid {
  display: grid;
  align-items: end;
  grid-template-columns: 1.15fr .85fr;
  gap: 80px;
}

.page-hero h1 {
  max-width: 980px;
  margin-bottom: 0;
  font-size: clamp(54px, 6.5vw, 96px);
}

.page-hero-copy {
  max-width: 610px;
  padding-bottom: 10px;
  color: #66727b;
  font-size: 19px;
}

.page-hero-with-media {
  padding-bottom: 0;
}

.page-hero-media {
  width: var(--shell);
  height: clamp(440px, 57vw, 760px);
  margin: 76px auto 0;
  overflow: hidden;
  background: #e4e8ea;
}

.page-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.trust-note {
  padding: 14px 18px;
  border-left: 3px solid var(--film-blue);
  color: #56636c;
  background: var(--pale-blue);
  font-size: 13px;
}

/* Catalog */
#catalog {
  scroll-margin-top: 90px;
}

.catalog-layout {
  display: grid;
  align-items: start;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: clamp(36px, 4vw, 52px);
}

.catalog-sidebar {
  position: sticky;
  top: 116px;
}

.catalog-search label,
.form-field label {
  display: block;
  margin-bottom: 8px;
  color: #4e5a63;
  font-size: 12px;
  font-weight: 700;
}

.catalog-search input,
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  min-height: 50px;
  padding: 12px 14px;
  border: 1px solid #bfc8ce;
  border-radius: 0;
  background: var(--white);
}

.catalog-search input:focus,
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--film-blue);
}

.catalog-filter {
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.catalog-filter strong {
  display: block;
  margin-bottom: 12px;
  font-size: 13px;
}

.catalog-filter div {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.catalog-filter button {
  width: 100%;
  min-height: 48px;
  padding: 11px 14px;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  color: #53606a;
  background: transparent;
  backdrop-filter: none;
  text-align: left;
  transition: color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease), padding .2s var(--ease);
}

.catalog-filter button.is-active {
  padding-left: 17px;
  color: var(--graphite);
  background: var(--pale-blue);
  box-shadow: inset 3px 0 var(--film-blue);
}

.catalog-guide {
  display: grid;
  margin-top: 34px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  grid-template-columns: 1fr auto;
  gap: 5px 18px;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.catalog-guide span {
  grid-column: 1 / -1;
  color: #77838b;
  font-size: 12px;
}

.catalog-guide strong {
  font-size: 15px;
}

.catalog-guide b {
  color: var(--film-blue);
  font-weight: 500;
}

.catalog-guide:hover {
  color: var(--film-blue);
  border-color: var(--film-blue);
}

.catalog-reset {
  width: 100%;
  margin-top: 30px;
  border: 0;
  border-bottom: 1px solid var(--graphite);
  background: transparent;
  font-size: 13px;
  font-weight: 700;
}

.catalog-meta {
  display: flex;
  margin-bottom: 22px;
  align-items: center;
  justify-content: space-between;
  color: var(--alloy-text);
  font-family: var(--mono);
  font-size: 11px;
}

.catalog-meta strong {
  color: var(--graphite);
  font-size: 18px;
}

.catalog-families {
  display: grid;
  gap: clamp(64px, 8vw, 112px);
}

.catalog-family-heading {
  display: flex;
  margin-bottom: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.catalog-family-heading > div > span {
  display: block;
  margin-bottom: 9px;
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .13em;
}

.catalog-family-heading h2 {
  margin: 0;
  font-size: clamp(30px, 3vw, 44px);
}

.catalog-family-heading .text-link {
  flex: 0 0 auto;
  font-size: 13px;
}

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

.product-card {
  display: flex;
  height: 100%;
  min-height: 0;
  flex-direction: column;
  color: inherit;
  border: 1px solid var(--line);
  background: var(--white);
  scroll-margin-top: 110px;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}

.product-card:hover {
  border-color: #aebbc3;
  box-shadow: 0 18px 44px rgba(17, 24, 32, .07);
  transform: translateY(-2px);
}

.product-card:target {
  border-color: var(--film-blue);
  box-shadow: 0 0 0 2px var(--film-blue);
}

.product-card-media {
  overflow: hidden;
  height: auto;
  aspect-ratio: 4 / 3;
  background: #e5e9eb;
}

.product-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .55s var(--ease);
}

.product-card-media.is-specimen {
  background: #e6eaec;
}

.product-card-media.is-specimen img {
  object-fit: contain;
}

.product-card-media.is-diagram {
  padding: 8px;
  background: #f3f5f6;
}

.product-card-media.is-diagram img {
  object-fit: contain;
}

.brand-material-media {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  background: var(--line);
}

.brand-material-media > div {
  position: relative;
  overflow: hidden;
  min-width: 0;
  background: #e6eaec;
}

.brand-material-media > div:first-child img {
  object-fit: contain;
}

.brand-material-media > div:last-child img {
  object-fit: cover;
}

.brand-material-media > div > span {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 5px 8px;
  color: var(--white);
  background: rgba(17, 24, 32, .78);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .08em;
}

.product-card:hover .product-card-media img {
  transform: scale(1.025);
}

.product-card-copy {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 26px;
}

.product-card-copy > span {
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 10px;
}

.product-card h2,
.product-card h3 {
  margin: 14px 0;
  font-size: clamp(25px, 2vw, 30px);
  text-wrap: balance;
}

.product-card p {
  color: #66727b;
  font-size: 14px;
}

.product-card-facts {
  display: grid;
  margin: 18px 0 0;
  border-top: 1px solid var(--line);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.product-card-scope {
  margin-top: 18px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
}

.product-card-scope > span {
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.product-card-scope ul {
  display: flex;
  margin: 7px 0 0;
  padding: 0;
  flex-wrap: wrap;
  list-style: none;
}

.product-card-scope li {
  color: #53606a;
  font-size: 12px;
}

.product-card-scope li:not(:last-child)::after {
  margin: 0 .5em;
  color: #a4adb3;
  content: '·';
}

.product-card-facts div {
  min-width: 0;
  padding: 14px 12px 0 0;
}

.product-card-facts div + div {
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.product-card-facts dt,
.product-card-facts dd {
  margin: 0;
}

.product-card-facts dt {
  margin-bottom: 5px;
  color: #89939a;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
}

.product-card-facts dd {
  color: #3f4b54;
  font-size: 13px;
  font-weight: 650;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tag-list span {
  padding: 4px 8px;
  border: 1px solid var(--line);
  color: #59666f;
  font-size: 11px;
}

.product-card .text-link {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 22px;
}

.product-card--lead {
  display: flex;
  min-height: 0;
  grid-column: auto;
  border-top: 3px solid var(--film-blue);
}

.product-card--lead .product-card-media {
  height: auto;
  min-height: 0;
}

.product-card--lead .product-card-media.is-specimen img {
  object-fit: contain;
}

.product-card--lead .product-card-copy {
  justify-content: flex-start;
  padding: 26px;
}

.product-card--lead h2,
.product-card--lead h3 {
  max-width: none;
  font-size: clamp(25px, 2vw, 30px);
  text-wrap: balance;
}

.catalog-empty {
  padding: 80px 30px;
  border: 1px solid var(--line);
  text-align: center;
}

.catalog-empty h2 {
  font-size: 34px;
}

/* Product specimens */
.product-showcase {
  background: #edf0f1;
}

.product-showcase-grid {
  display: grid;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.product-showcase-card {
  display: flex;
  min-width: 0;
  margin: 0;
  flex-direction: column;
  grid-column: span 4;
  scroll-margin-top: 110px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.product-showcase-card:target {
  position: relative;
  z-index: 1;
  box-shadow: inset 0 0 0 2px var(--film-blue);
}

#adhesive-systems,
#brand-materials {
  scroll-margin-top: 110px;
}

.detail-column[id] {
  scroll-margin-top: 110px;
}

.detail-column[id]:target {
  box-shadow: inset 0 0 0 2px var(--film-blue);
}

#adhesive-systems:target,
#brand-materials:target {
  box-shadow: inset 0 4px 0 var(--film-blue);
}

#brand-materials h2 {
  text-wrap: balance;
}

.product-showcase-card:first-child:nth-last-child(2),
.product-showcase-card:first-child:nth-last-child(2) ~ .product-showcase-card,
.product-showcase-card:nth-child(4):nth-last-child(2),
.product-showcase-card:nth-child(4):nth-last-child(2) ~ .product-showcase-card {
  grid-column: span 6;
}

.product-showcase-media {
  overflow: hidden;
  margin: 0;
  aspect-ratio: 4 / 3;
  background: #e6eaec;
}

.product-showcase-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform .55s var(--ease);
}

.product-showcase-card:hover .product-showcase-media img {
  transform: scale(1.018);
}

.product-showcase-card figcaption,
.product-showcase-card > div:not(.product-showcase-media) {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 26px clamp(22px, 2.6vw, 34px) 30px;
}

.product-showcase-card .eyebrow {
  margin: 0;
  color: var(--film-blue);
}

.product-showcase-card h3 {
  margin: 13px 0 10px;
  font-size: clamp(24px, 2.2vw, 32px);
}

.product-showcase-card figcaption > p:not(.eyebrow),
.product-showcase-card > div:not(.product-showcase-media) > p:not(.eyebrow) {
  margin: 0 0 22px;
  color: #66727b;
  font-size: 14px;
}

.product-showcase-card .tag-list {
  margin-top: auto;
}

.product-showcase-card > span {
  padding: 26px clamp(22px, 2.6vw, 34px) 0;
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .06em;
}

.product-showcase-card > h3 {
  margin: 13px 0 10px;
  padding-inline: clamp(22px, 2.6vw, 34px);
  font-size: clamp(24px, 2.2vw, 32px);
}

.product-showcase-card > p {
  margin: 0;
  padding: 0 clamp(22px, 2.6vw, 34px) 30px;
  color: #66727b;
  font-size: 14px;
}

.brand-showcase-pair {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  background: var(--line);
}

.brand-showcase-pair img {
  min-width: 0;
  background: #e6eaec;
  object-fit: contain;
}

.brand-material-list {
  display: grid;
  margin: auto 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.brand-material-list li {
  padding: 12px 10px 12px 0;
  border-bottom: 1px solid var(--line);
  color: #3f4b54;
  font-size: 12px;
}

.brand-material-list li:nth-child(even) {
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

/* Product details */
.product-detail-hero {
  display: grid;
  min-height: 720px;
  grid-template-columns: .84fr 1.16fr;
}

.product-detail-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px max(48px, calc((100vw - 1320px) / 2));
  padding-right: clamp(48px, 6vw, 100px);
  background: var(--white);
}

.product-detail-copy h1 {
  margin-bottom: 24px;
  font-size: clamp(54px, 5.7vw, 86px);
}

.product-detail-copy .lede {
  margin-bottom: 36px;
}

.product-detail-media {
  min-height: 720px;
  background: #e5e9eb;
}

.product-detail-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-columns {
  display: grid;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  grid-template-columns: repeat(3, 1fr);
}

.detail-column {
  min-height: 330px;
  padding: clamp(34px, 4vw, 60px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.detail-column span {
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 10px;
}

.detail-column h2 {
  margin: 24px 0 18px;
  font-size: 31px;
}

.detail-column ul {
  margin: 0;
  padding-left: 18px;
  color: #5e6a73;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
}

.spec-table th,
.spec-table td {
  padding: 20px 22px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  width: 28%;
  color: #5f6b74;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
}

.spec-table td {
  font-size: 14px;
}

/* Solution detail */
.solution-hero {
  color: var(--white);
  background: var(--graphite);
}

.solution-hero .page-hero-copy {
  color: #aebbc3;
}

.solution-overview {
  padding-block: clamp(68px, 8vw, 118px);
  scroll-margin-top: 92px;
  background: #edf1f3;
}

.solution-overview > .shell {
  width: min(1480px, calc(100vw - 96px));
}

.solution-overview-heading {
  display: grid;
  max-width: 1320px;
  margin: 0 auto clamp(34px, 4vw, 58px);
  align-items: end;
  grid-template-columns: 1.22fr .78fr;
  gap: 72px;
}

.solution-overview-heading h2 {
  max-width: 900px;
  margin-bottom: 0;
  font-size: clamp(38px, 4.5vw, 68px);
}

.solution-overview-heading > p {
  max-width: 560px;
  margin-bottom: 0;
  color: var(--alloy-text);
  font-size: 17px;
}

.solution-overview-figure {
  max-width: 1480px;
  margin: 0 auto;
}

.solution-overview-viewport {
  overflow: hidden;
  padding: clamp(10px, 1.45vw, 22px);
  border: 1px solid #cbd4da;
  background: var(--white);
  box-shadow: 0 28px 80px rgba(17, 24, 32, .1);
}

.solution-overview-viewport:focus-visible {
  outline: 3px solid rgba(56, 160, 199, .62);
  outline-offset: 5px;
}

.solution-overview-viewport img {
  width: 100%;
  height: auto;
}

.solution-overview-figure figcaption {
  display: grid;
  min-height: 68px;
  align-items: center;
  padding: 12px 2px 0;
  color: var(--alloy-text);
  font-size: 13px;
  grid-template-columns: 1fr auto;
  gap: 18px;
}

.solution-overview-figure .text-link {
  color: var(--graphite);
  font-size: 13px;
}

.solution-overview-figure .text-link b {
  color: var(--film-blue);
  font-size: 17px;
}

.solution-overview-swipe {
  display: none;
}

.solution-overview + .layer-diagram {
  display: block;
  min-height: 0;
  padding: clamp(48px, 6vw, 84px);
  border-top: 1px solid #cbd4da;
}

.solution-overview + .layer-diagram .layer-stack {
  width: 100%;
  max-width: 1320px;
  border-top: 1px solid #cbd4da;
  border-left: 1px solid #cbd4da;
  margin: 0 auto;
  grid-template-columns: repeat(auto-fit, minmax(min(230px, 100%), 1fr));
  gap: 0;
}

.solution-overview + .layer-diagram .layer {
  min-height: 160px;
  align-content: start;
  padding: 26px 24px;
  border: 0;
  border-right: 1px solid #cbd4da;
  border-bottom: 1px solid #cbd4da;
  background: rgba(255, 255, 255, .62);
  box-shadow: none;
  grid-template-columns: 1fr;
  gap: 14px;
  transform: none;
}

.layer-diagram {
  display: grid;
  min-height: 590px;
  align-items: center;
  padding: clamp(48px, 7vw, 100px);
  background: #e8edf0;
}

.layer-stack {
  display: grid;
  max-width: 900px;
  margin: auto;
  gap: 14px;
}

.layer {
  display: grid;
  min-height: 86px;
  align-items: center;
  padding: 18px 24px;
  border-left: 5px solid var(--film-blue);
  background: var(--white);
  box-shadow: 0 16px 38px rgba(17, 24, 32, .08);
  grid-template-columns: 170px 1fr;
  gap: 32px;
  transform: translateX(var(--offset, 0));
}

.layer:nth-child(2) {
  --offset: 24px;
}

.layer:nth-child(3) {
  --offset: 48px;
}

.layer strong {
  font-size: 18px;
}

.layer span {
  color: #66727b;
  font-size: 14px;
}

.solution-flow {
  display: grid;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  grid-template-columns: repeat(4, 1fr);
}

.flow-step {
  min-height: 250px;
  padding: 36px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.flow-step span {
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 10px;
}

.flow-step h3 {
  margin: 26px 0 12px;
  font-size: 25px;
}

.flow-step p {
  color: #66727b;
  font-size: 14px;
}

.evidence-box {
  display: grid;
  padding: clamp(40px, 6vw, 80px);
  color: var(--white);
  background: var(--graphite);
  grid-template-columns: 1fr 1fr;
  gap: 70px;
}

.evidence-box h2 {
  margin-bottom: 0;
}

.evidence-box p {
  color: #afbbc3;
}

/* Applications */
.industry-list {
  border-top: 1px solid var(--line);
}

.industry-row {
  display: grid;
  min-height: 180px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 130px .8fr 1.2fr 70px;
  scroll-margin-top: 110px;
  transition: background .25s var(--ease), box-shadow .25s var(--ease);
}

.industry-row:target {
  background: var(--white);
  box-shadow: inset 3px 0 0 var(--film-blue);
}

.industry-row > span {
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 10px;
}

.industry-row h2 {
  margin: 0;
  font-size: clamp(30px, 3vw, 46px);
}

.industry-row p {
  margin: 0;
  color: #66727b;
}

.industry-row b {
  color: var(--film-blue);
  font-size: 24px;
  text-align: right;
}

/* Manufacturing and about */
.process-line {
  display: grid;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  grid-template-columns: repeat(3, 1fr);
}

.process-item {
  min-height: 260px;
  padding: 38px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.process-item span {
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 10px;
}

.process-item h3 {
  margin: 28px 0 12px;
  font-size: 28px;
}

.process-item p {
  color: #66727b;
  font-size: 14px;
}

.equipment-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, 1fr);
}

.equipment-card {
  position: relative;
  overflow: hidden;
  min-height: 500px;
  margin: 0;
  background: #dfe4e7;
}

.equipment-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.equipment-card figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 54px 26px 22px;
  color: var(--white);
  background: linear-gradient(to top, rgba(8, 14, 19, .82), transparent);
}

.about-mosaic {
  display: grid;
  gap: 18px;
  grid-template-columns: 1.2fr .8fr;
  grid-template-rows: 360px 360px;
}

.about-mosaic figure {
  position: relative;
  overflow: hidden;
  margin: 0;
}

.about-mosaic figure:first-child {
  grid-row: 1 / 3;
}

.about-mosaic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-mosaic figcaption {
  position: absolute;
  right: 14px;
  bottom: 14px;
  padding: 7px 10px;
  color: var(--white);
  background: rgba(17, 24, 32, .74);
  font-size: 11px;
}

.values-grid {
  display: grid;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  grid-template-columns: repeat(3, 1fr);
}

.value-item {
  min-height: 320px;
  padding: clamp(34px, 4vw, 58px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.value-item h3 {
  margin: 70px 0 20px;
}

.value-item p {
  color: #66727b;
}

/* Contact and legal */
.contact-layout {
  display: grid;
  align-items: start;
  grid-template-columns: .78fr 1.22fr;
  gap: clamp(56px, 8vw, 120px);
}

.contact-copy h1 {
  margin-bottom: 30px;
  font-size: clamp(52px, 6vw, 88px);
}

.contact-details {
  margin: 50px 0 0;
}

.contact-details div {
  padding: 17px 0;
  border-top: 1px solid var(--line);
}

.contact-details dt {
  color: var(--alloy-text);
  font-family: var(--mono);
  font-size: 10px;
}

.contact-details dd {
  margin: 5px 0 0;
  font-size: 16px;
  font-weight: 650;
}

.contact-form {
  padding: clamp(32px, 5vw, 68px);
  border: 1px solid var(--line);
  background: var(--white);
}

.form-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(2, 1fr);
}

.form-field {
  margin-bottom: 22px;
}

.form-field-full {
  grid-column: 1 / -1;
}

.contact-form textarea {
  min-height: 130px;
  resize: vertical;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.form-status {
  min-height: 28px;
  margin: 18px 0 0;
  color: var(--success);
  font-size: 13px;
}

.inquiry-preview {
  overflow-x: auto;
  margin: 24px 0 0;
  padding: 20px;
  border: 1px solid var(--line);
  white-space: pre-wrap;
  background: var(--paper);
  font-family: var(--mono);
  font-size: 12px;
}

.legal-content {
  display: grid;
  max-width: 920px;
  gap: 54px;
}

.legal-content article {
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.legal-content h2 {
  font-size: 34px;
}

.legal-content p,
.legal-content li {
  color: #5f6b74;
}

/* Reveal */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1180px) {
  :root {
    --shell: min(100% - 56px, 1080px);
  }

  .desktop-nav {
    gap: 18px;
  }

  .desktop-nav a {
    font-size: 13px;
  }

  .header-contact {
    display: none;
  }

  .home-hero-grid {
    grid-template-columns: .92fr 1.08fr;
  }

  .hero-copy {
    padding-right: 42px;
  }

  .chapter {
    grid-template-columns: 90px minmax(280px, .9fr) minmax(320px, 1.1fr) 70px;
  }

  .battery-viewer {
    grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr);
  }

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

@media (max-width: 920px) {
  :root {
    --shell: calc(100vw - 48px);
  }

  .header-inner {
    min-height: 78px;
    grid-template-columns: 1fr auto;
  }

  .brand {
    width: 230px;
  }

  .desktop-nav,
  .header-contact {
    display: none;
  }

  .menu-toggle {
    display: grid;
  }

  .mobile-menu {
    height: calc(100vh - 78px);
    height: calc(100dvh - 78px);
  }

  .home-hero::before {
    display: none;
  }

  .home-hero-grid {
    min-height: auto;
    padding-block: 72px;
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding: 0;
  }

  .hero-copy h1 {
    max-width: 820px;
  }

  .hero-visual {
    height: 52svh;
    min-height: 460px;
    margin-top: 46px;
    padding: 0;
  }

  .hero-visual::before {
    inset: 0;
  }

  .hero-visual picture {
    margin: 16px;
  }

  .film-peel {
    right: 4px;
    bottom: -12px;
  }

  .capability-rail .shell {
    grid-template-columns: repeat(2, 1fr);
  }

  .capability-step:nth-child(2) {
    border-right: 1px solid var(--line);
  }

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

  .section-heading,
  .page-hero-grid,
  .footer-main,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .split-feature {
    grid-template-columns: 1fr;
  }

  .split-feature-media,
  .split-feature-copy {
    min-height: 500px;
  }

  .battery-viewer {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .battery-canvas {
    position: relative;
    top: auto;
    height: auto;
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .battery-scene {
    width: 100%;
  }

  .battery-details {
    min-height: 560px;
  }

  .chapter {
    min-height: 0;
    grid-template-columns: 72px 1fr 58px;
  }

  .chapter-index {
    grid-row: 1 / 3;
  }

  .chapter-copy {
    min-height: 330px;
    grid-column: 2;
    grid-row: 1;
  }

  .chapter-media {
    height: 360px;
    grid-column: 2 / 4;
    grid-row: 2;
  }

  .chapter-arrow {
    grid-column: 3;
    grid-row: 1;
  }

  .solution-grid,
  .detail-columns,
  .values-grid {
    grid-template-columns: 1fr;
  }

  .proof-gallery,
  .equipment-grid,
  .catalog-layout,
  .product-detail-hero,
  .evidence-box {
    grid-template-columns: 1fr;
  }

  .catalog-sidebar {
    position: static;
  }

  .catalog-filter div {
    display: flex;
    overflow-x: auto;
    padding-bottom: 2px;
    border-top: 0;
    flex-wrap: nowrap;
    gap: 6px;
    scrollbar-width: thin;
  }

  .catalog-filter button {
    width: auto;
    min-height: 44px;
    padding: 9px 13px;
    border: 1px solid var(--line);
    flex: 0 0 auto;
  }

  .catalog-filter button.is-active {
    padding-left: 13px;
    border-color: var(--film-blue);
    box-shadow: inset 0 -2px var(--film-blue);
  }

  .product-showcase-card,
  .product-showcase-card:first-child:nth-last-child(2),
  .product-showcase-card:first-child:nth-last-child(2) ~ .product-showcase-card,
  .product-showcase-card:nth-child(4):nth-last-child(2),
  .product-showcase-card:nth-child(4):nth-last-child(2) ~ .product-showcase-card {
    grid-column: span 6;
  }

  .product-showcase-card:last-child:nth-child(odd) {
    grid-column: span 12;
  }

  .product-detail-copy {
    min-height: 620px;
    padding-inline: 48px;
  }

  .product-detail-media {
    min-height: 620px;
  }

  .solution-flow,
  .process-line {
    grid-template-columns: repeat(2, 1fr);
  }

  .industry-row {
    grid-template-columns: 80px .8fr 1.2fr 40px;
  }

  .footer-links {
    max-width: 720px;
  }

  .cta-band .shell {
    min-height: 390px;
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 640px) {
  :root {
    --shell: calc(100vw - 28px);
  }

  html {
    scroll-padding-top: 76px;
  }

  body {
    font-size: 15px;
  }

  .section {
    padding-block: 78px;
  }

  h1 {
    font-size: clamp(46px, 14vw, 62px);
  }

  h2 {
    font-size: clamp(37px, 11vw, 52px);
  }

  .header-inner {
    min-height: 72px;
  }

  .brand {
    width: min(215px, 63vw);
  }

  .mobile-menu {
    height: calc(100vh - 72px);
    height: calc(100dvh - 72px);
    padding: 28px 20px;
  }

  .home-hero {
    min-height: auto;
  }

  .home-hero-grid {
    padding-block: 48px 40px;
  }

  .hero-copy h1 {
    margin-bottom: 22px;
    font-size: clamp(48px, 14vw, 64px);
  }

  .hero-copy .lede {
    margin-bottom: 28px;
    font-size: 16px;
  }

  .button-row {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .hero-proof {
    display: none;
  }

  .hero-visual {
    height: 39svh;
    min-height: 310px;
    margin-top: 32px;
  }

  .hero-visual picture {
    margin: 8px;
  }

  .hero-visual img {
    object-position: 58% center;
  }

  .film-peel {
    right: 0;
    bottom: -16px;
    width: 72%;
    padding: 10px 12px 10px 15px;
  }

  .film-peel strong {
    font-size: 12px;
  }

  .capability-rail .shell {
    width: 100%;
  }

  .capability-step {
    min-height: 118px;
    padding: 22px 16px;
  }

  .capability-step strong {
    font-size: 15px;
  }

  .section-heading {
    margin-bottom: 42px;
  }

  .section-heading .lede {
    font-size: 16px;
  }

  .battery-stage-intro {
    padding-bottom: 36px;
  }

  .battery-canvas {
    height: auto;
    min-height: 0;
    justify-content: flex-start;
  }

  .battery-scene {
    width: 150%;
    transform: translateX(-33%);
    transform-origin: center;
  }

  .battery-levels {
    top: 14px;
    left: 14px;
    overflow-x: auto;
    max-width: calc(100% - 28px);
  }

  .battery-levels button {
    flex: 0 0 auto;
  }

  .hotspot {
    width: 52px;
    height: 52px;
  }

  .hotspot:not(.is-active) {
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
  }

  .hotspot span {
    display: none;
  }

  .battery-details {
    min-height: 0;
    padding: 42px 20px 48px;
  }

  .battery-details h3 {
    font-size: 38px;
  }

  .battery-list {
    display: grid;
    padding: 18px 14px;
    border-top: 1px solid var(--line-dark);
    gap: 6px;
    grid-template-columns: repeat(2, 1fr);
    background: #0c141a;
  }

  .battery-list button {
    min-height: 48px;
    padding: 8px 10px;
    border: 1px solid #33434e;
    color: #c6d1d7;
    background: transparent;
    font-size: 12px;
    text-align: left;
  }

  .battery-list button.is-active {
    color: var(--white);
    border-color: var(--signal-blue);
    background: #15303c;
  }

  .chapter {
    display: block;
  }

  .chapter-index {
    display: block;
    padding: 22px 16px 0;
    border-right: 0;
  }

  .chapter-copy {
    min-height: 0;
    padding: 24px 16px 36px;
  }

  .chapter-copy h3 {
    font-size: 38px;
  }

  .chapter-media {
    height: 280px;
  }

  .chapter-arrow {
    display: none;
  }

  .solution-card {
    min-height: 340px;
    padding: 34px 22px;
  }

  .solution-card h3 {
    font-size: 38px;
  }

  .proof-gallery figure,
  .proof-gallery figure:last-child {
    min-height: 360px;
  }

  .cta-band .shell {
    min-height: 450px;
  }

  .page-hero {
    padding-block: 70px;
  }

  .page-hero h1 {
    font-size: clamp(48px, 14vw, 64px);
  }

  .page-hero-copy {
    font-size: 16px;
  }

  .page-hero-media {
    height: 340px;
    margin-top: 48px;
  }

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

  .catalog-family-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .product-card {
    min-height: 0;
  }

  .product-card-media {
    height: auto;
  }

  .product-card--lead {
    display: flex;
    min-height: 0;
    grid-column: auto;
  }

  .product-card--lead .product-card-media {
    height: auto;
    min-height: 0;
  }

  .product-card--lead .product-card-media.is-specimen img {
    object-fit: contain;
  }

  .product-card--lead .product-card-copy {
    justify-content: flex-start;
    padding: 26px;
  }

  .product-card--lead h2,
  .product-card--lead h3 {
    font-size: clamp(25px, 8vw, 30px);
  }

  .product-showcase-card,
  .product-showcase-card:first-child:nth-last-child(2),
  .product-showcase-card:first-child:nth-last-child(2) ~ .product-showcase-card,
  .product-showcase-card:nth-child(4):nth-last-child(2),
  .product-showcase-card:nth-child(4):nth-last-child(2) ~ .product-showcase-card,
  .product-showcase-card:last-child:nth-child(odd) {
    grid-column: span 12;
  }

  .catalog-meta {
    align-items: flex-start;
    flex-direction: column;
  }

  .product-detail-hero {
    min-height: 0;
  }

  .product-detail-copy {
    min-height: 590px;
    padding: 64px 14px;
  }

  .product-detail-copy h1 {
    font-size: 52px;
  }

  .product-detail-media {
    min-height: 420px;
  }

  .detail-column {
    min-height: 270px;
    padding: 32px 22px;
  }

  .spec-table,
  .spec-table tbody,
  .spec-table tr,
  .spec-table th,
  .spec-table td {
    display: block;
  }

  .spec-table tr {
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
  }

  .spec-table th,
  .spec-table td {
    width: auto;
    padding: 3px 0;
    border: 0;
  }

  .layer-diagram {
    min-height: 520px;
    padding: 44px 14px;
  }

  .layer {
    min-height: 110px;
    padding: 16px;
    grid-template-columns: 1fr;
    gap: 8px;
    transform: translateX(0);
  }

  .solution-flow,
  .process-line {
    grid-template-columns: 1fr;
  }

  .industry-row {
    min-height: 230px;
    padding: 28px 0;
    grid-template-columns: 44px 1fr 30px;
    gap: 10px;
  }

  .industry-row p {
    padding-top: 14px;
    grid-column: 2 / 4;
  }

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

  .equipment-card {
    min-height: 380px;
  }

  .about-mosaic {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(3, 300px);
  }

  .about-mosaic figure:first-child {
    grid-row: auto;
  }

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

  .form-field-full {
    grid-column: auto;
  }

  .contact-form {
    padding: 28px 16px;
  }

  .footer-main {
    padding-block: 62px 44px;
  }

  .footer-brand {
    width: 220px;
  }

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

  .footer-bottom {
    padding-block: 22px;
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ========================================================================== 
   V7 — Huishi information rhythm, translated for precision die-cutting
   ========================================================================== */

:root {
  --paper: #f4f6f7;
  --white: #ffffff;
  --graphite: #101820;
  --graphite-soft: #18242d;
  --alloy: #c8d0d5;
  --alloy-text: #66737d;
  --line: #d9dfe3;
  --line-dark: #37454f;
  --film-blue: #0b6288;
  --signal-blue: #83c7de;
  --pale-blue: #e8f2f6;
  --display: "Avenir Next", "SF Pro Display", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --body: "SF Pro Text", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "SFMono-Regular", Menlo, Consolas, monospace;
  --shell: min(1340px, calc(100vw - 112px));
  --ease: cubic-bezier(.22, .68, .18, 1);
}

body {
  background: var(--paper);
  font-family: var(--body);
}

.v7-home {
  background: var(--white);
}

.v7-kicker,
.v7-panel-index {
  margin: 0 0 22px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  line-height: 1.4;
  text-transform: uppercase;
}

.v7-kicker {
  color: #a8d9ea;
}

.v7-lede {
  color: #44515a;
  font-size: clamp(19px, 1.55vw, 23px);
  line-height: 1.78;
}

/* V7 header and mega navigation */
.site-header {
  z-index: 1000;
  border-bottom-color: rgba(16, 24, 32, .1);
  background: rgba(255, 255, 255, .95);
  backdrop-filter: saturate(145%) blur(20px);
  -webkit-backdrop-filter: saturate(145%) blur(20px);
  transition: color .35s var(--ease), background .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}

.site-header.is-overlay:not(.is-scrolled) {
  position: fixed;
  right: 0;
  left: 0;
  color: var(--white);
  border-bottom-color: rgba(255, 255, 255, .22);
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.site-header.is-overlay {
  position: fixed;
  right: 0;
  left: 0;
}

.site-header.is-scrolled {
  border-bottom-color: rgba(16, 24, 32, .08);
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 12px 40px rgba(16, 24, 32, .07);
}

.header-inner {
  min-height: 90px;
  grid-template-columns: minmax(225px, 1fr) auto auto;
  gap: clamp(22px, 2.5vw, 42px);
}

.brand {
  position: relative;
  width: min(246px, 19vw);
}

.brand-logo {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  transform: translateY(-50%);
  transition: opacity .3s var(--ease);
}

.brand-logo-inverse {
  opacity: 0;
}

.site-header.is-overlay:not(.is-scrolled) .brand-logo-color {
  opacity: 0;
}

.site-header.is-overlay:not(.is-scrolled) .brand-logo-inverse {
  opacity: 1;
}

.desktop-nav {
  align-self: stretch;
  align-items: stretch;
  gap: clamp(4px, .65vw, 12px);
}

.nav-item {
  display: flex;
  align-self: stretch;
  align-items: stretch;
}

.desktop-nav .nav-top-link {
  display: flex;
  align-items: center;
  padding: 0 clamp(11px, 1vw, 17px);
  color: #2c3942;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: .01em;
}

.site-header.is-overlay:not(.is-scrolled) .desktop-nav .nav-top-link {
  color: rgba(255, 255, 255, .92);
}

.desktop-nav .nav-top-link::after {
  content: none;
}

.nav-top-label {
  position: relative;
}

.nav-top-label::after {
  position: absolute;
  right: 0;
  bottom: -3px;
  left: 0;
  height: 3px;
  background: var(--film-blue);
  content: '';
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .25s var(--ease);
}

.nav-top-link:hover .nav-top-label::after,
.nav-top-link[aria-current="page"] .nav-top-label::after,
.nav-top-link[aria-expanded="true"] .nav-top-label::after {
  transform: scaleX(1);
  transform-origin: left;
}

.site-header.is-overlay:not(.is-scrolled) .nav-top-label::after {
  background: var(--white);
}

.mega-menu {
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  max-height: calc(100vh - 90px);
  max-height: calc(100dvh - 90px);
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  visibility: hidden;
  color: var(--graphite);
  border-top: 1px solid rgba(16, 24, 32, .08);
  background: #fff;
  box-shadow: 0 28px 70px rgba(16, 24, 32, .14);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity .25s var(--ease), transform .25s var(--ease);
}

.desktop-nav:not([data-menu-managed]) .nav-item:hover .mega-menu,
.desktop-nav:not([data-menu-managed]) .nav-item:focus-within .mega-menu,
.desktop-nav[data-menu-managed] .nav-item.is-open .mega-menu {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.mega-menu-inner {
  display: grid;
  min-height: 350px;
  padding-block: 42px;
  grid-template-columns: .82fr 1.25fr .78fr;
  gap: clamp(34px, 4vw, 72px);
}

.mega-intro {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
}

.mega-kicker {
  margin: 0 0 12px;
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.mega-intro h2 {
  margin-bottom: 18px;
  font-size: clamp(31px, 2.6vw, 42px);
}

.mega-intro > p:not(.mega-kicker) {
  max-width: 360px;
  margin-bottom: auto;
  color: #62707a;
  font-size: 15px;
  line-height: 1.75;
}

.mega-intro .text-link {
  margin-top: 24px;
  font-size: 13px;
}

.mega-links {
  display: grid;
  align-content: stretch;
  grid-template-columns: repeat(2, 1fr);
}

.mega-links > a {
  display: flex;
  min-height: 128px;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
  padding: 25px 26px;
  border: 1px solid var(--line);
  margin: 0 -1px -1px 0;
  transition: color .25s var(--ease), background .25s var(--ease);
}

.mega-links > a:hover {
  color: var(--white);
  background: var(--film-blue);
}

.mega-links span {
  display: grid;
  gap: 8px;
}

.mega-links strong {
  font-size: 16px;
}

.mega-links small {
  color: #78848c;
  font-size: 12px;
  line-height: 1.6;
}

.mega-links > a:hover small {
  color: rgba(255, 255, 255, .7);
}

.mega-links b {
  color: var(--film-blue);
  font-size: 17px;
  font-weight: 400;
}

.mega-links > a:hover b {
  color: var(--white);
}

.mega-media {
  overflow: hidden;
  min-height: 260px;
  margin: 0;
  background: var(--paper);
}

.mega-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .7s var(--ease);
}

.nav-item:hover .mega-media img {
  transform: scale(1.025);
}

.header-actions {
  gap: 0;
}

.header-phone {
  display: flex;
  min-height: 90px;
  align-items: center;
  padding: 0 18px;
  border-right: 1px solid rgba(16, 24, 32, .12);
  border-left: 1px solid rgba(16, 24, 32, .12);
  color: #394650;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .04em;
}

.header-contact {
  display: flex;
  min-width: 102px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  margin-left: 18px;
  padding: 11px 17px;
  color: var(--white);
  background: var(--graphite);
  font-size: 13px;
  font-weight: 700;
  transition: color .25s var(--ease), background .25s var(--ease);
}

.header-contact:hover {
  background: var(--film-blue);
}

.site-header.is-overlay:not(.is-scrolled) .header-phone {
  color: rgba(255, 255, 255, .88);
  border-color: rgba(255, 255, 255, .22);
}

.site-header.is-overlay:not(.is-scrolled) .header-contact {
  color: var(--graphite);
  background: var(--white);
}

.site-header.is-overlay:not(.is-scrolled) .header-contact:hover {
  color: var(--white);
  background: var(--film-blue);
}

.mobile-meta {
  display: grid;
  margin-top: 30px;
  gap: 4px;
}

.mobile-meta a {
  min-height: 42px;
  border: 0;
  color: var(--alloy-text);
  font-family: var(--mono);
  font-size: 12px;
}

/* Hero */
.v7-hero {
  position: relative;
  overflow: hidden;
  min-height: 720px;
  height: 100svh;
  color: var(--white);
  background: var(--graphite);
}

.v7-hero::after {
  position: absolute;
  z-index: 8;
  top: 0;
  bottom: 0;
  left: -8px;
  width: 5px;
  background: #4aa9ce;
  box-shadow: 0 0 28px rgba(75, 172, 210, .65);
  content: '';
  opacity: 0;
  pointer-events: none;
}

.v7-hero.is-changing::after {
  animation: v7-film-sweep .9s var(--ease) both;
}

@keyframes v7-film-sweep {
  0% { opacity: 0; transform: translateX(0); }
  15% { opacity: .95; }
  82% { opacity: .8; }
  100% { opacity: 0; transform: translateX(calc(100vw + 14px)); }
}

.v7-hero-slide {
  position: absolute;
  z-index: 1;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity .8s var(--ease);
}

.v7-hero-slide.is-active {
  z-index: 2;
  opacity: 1;
  pointer-events: auto;
}

.v7-hero-media,
.v7-hero-media img,
.v7-hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.v7-hero-media img {
  object-fit: cover;
  object-position: center;
  transform: scale(1.025);
  transition: transform 7.5s cubic-bezier(.2, .55, .2, 1);
}

.v7-hero-slide:first-child .v7-hero-media img {
  object-position: 62% center;
}

.v7-hero-slide:nth-child(2) .v7-hero-media img {
  object-position: 58% 48%;
}

.v7-hero-slide.is-active .v7-hero-media img {
  transform: scale(1);
}

.v7-hero-shade {
  background: linear-gradient(90deg, rgba(7, 14, 20, .83) 0%, rgba(7, 14, 20, .68) 36%, rgba(7, 14, 20, .32) 66%, rgba(7, 14, 20, .24) 100%), linear-gradient(0deg, rgba(7, 14, 20, .42), rgba(7, 14, 20, .05) 52%);
}

.v7-hero-copy {
  position: relative;
  z-index: 3;
  display: flex;
  height: 100%;
  align-items: flex-start;
  justify-content: center;
  flex-direction: column;
  padding-top: 72px;
  padding-bottom: 160px;
}

.v7-hero-copy h1,
.v7-hero-copy h2 {
  max-width: 900px;
  margin-bottom: 28px;
  color: var(--white);
  font-size: clamp(58px, 6.1vw, 94px);
  font-weight: 620;
  letter-spacing: -.065em;
  line-height: 1.03;
}

.v7-hero-copy > p:not(.v7-kicker) {
  max-width: 680px;
  margin-bottom: 38px;
  color: rgba(255, 255, 255, .82);
  font-size: clamp(17px, 1.45vw, 21px);
  line-height: 1.8;
}

.v7-hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
}

.v7-hero-actions .button-light {
  min-width: 190px;
  color: var(--graphite);
  border-color: var(--white);
  background: var(--white);
}

.v7-hero-actions .button-light:hover {
  color: var(--white);
  border-color: var(--film-blue);
  background: var(--film-blue);
}

.v7-ghost-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 18px;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(255, 255, 255, .58);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
}

.v7-hero-controls {
  position: absolute;
  z-index: 6;
  right: 0;
  bottom: 40px;
  left: 0;
  display: grid;
  align-items: end;
  grid-template-columns: 42px minmax(0, 640px) 42px 42px;
  gap: 14px;
}

.v7-hero-arrow,
.v7-hero-pause {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .38);
  border-radius: 50%;
  color: var(--white);
  background: rgba(5, 12, 18, .14);
  font-size: 15px;
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.v7-hero-arrow:hover,
.v7-hero-pause:hover {
  color: var(--graphite);
  border-color: var(--white);
  background: var(--white);
}

.v7-hero-progress {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.v7-hero-progress button {
  display: grid;
  min-width: 0;
  padding: 0;
  border: 0;
  color: rgba(255, 255, 255, .48);
  background: transparent;
  font-family: var(--mono);
  grid-template-columns: 28px 1fr;
  gap: 5px 10px;
  text-align: left;
  transition: color .3s var(--ease);
}

.v7-hero-progress span {
  font-size: 10px;
}

.v7-hero-progress i {
  position: relative;
  overflow: hidden;
  height: 1px;
  margin-top: 7px;
  background: rgba(255, 255, 255, .28);
}

.v7-hero-progress i::after {
  position: absolute;
  inset: 0;
  background: var(--white);
  content: '';
  transform: translateX(-101%);
}

.v7-hero-progress button.is-active i::after {
  animation: v7-progress 7.2s linear forwards;
}

.v7-hero-progress b {
  font-size: 11px;
  font-weight: 600;
  grid-column: 2;
  letter-spacing: .04em;
}

.v7-hero-progress button.is-active {
  color: var(--white);
}

@keyframes v7-progress {
  to { transform: translateX(0); }
}

.v7-scroll-cue {
  position: absolute;
  z-index: 6;
  right: max(28px, calc((100vw - var(--shell)) / 2));
  bottom: 36px;
  display: grid;
  justify-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, .7);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.v7-scroll-cue span {
  display: block;
  width: 1px;
  height: 34px;
  background: rgba(255, 255, 255, .55);
}

/* Company */
.v7-company {
  display: grid;
  min-height: 780px;
  grid-template-columns: 1fr 1fr;
  background: var(--white);
}

.v7-company-media {
  position: relative;
  overflow: hidden;
  min-height: 620px;
}

.v7-company-media picture,
.v7-company-media img {
  width: 100%;
  height: 100%;
}

.v7-company-media img {
  object-fit: cover;
  object-position: center;
  transition: transform .8s var(--ease);
}

body[data-page="about"] .split-feature-media img[src$="about-factory-gate.webp"],
.v7-company-media img {
  object-position: 8% center;
}

.v7-company-media:hover img {
  transform: scale(1.018);
}

.v7-company-media > p {
  position: absolute;
  right: 28px;
  bottom: 26px;
  margin: 0;
  padding: 10px 14px;
  color: var(--white);
  background: rgba(9, 17, 23, .72);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
}

.v7-company-copy {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  flex-direction: column;
  padding: clamp(72px, 8vw, 132px) clamp(54px, 7vw, 124px);
}

.v7-company-copy h2 {
  max-width: 760px;
  margin-bottom: 30px;
  font-size: clamp(40px, 3.4vw, 56px);
}

.v7-company-copy > p:not(.eyebrow) {
  max-width: 680px;
  margin-bottom: 22px;
}

.v7-company-copy .text-link {
  margin-top: 12px;
}

.v7-capability-rail {
  display: grid;
  width: 100%;
  margin: 60px 0 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  grid-template-columns: repeat(4, 1fr);
}

.v7-capability-rail div {
  min-width: 0;
  padding: 20px 14px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.v7-capability-rail dt {
  margin-bottom: 7px;
  color: #5f6f79;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.v7-capability-rail dd {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
}

/* Shared V7 section heading */
.v7-section-head {
  display: grid;
  align-items: end;
  margin-bottom: clamp(52px, 7vw, 92px);
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, .7fr);
  gap: clamp(40px, 8vw, 150px);
}

.v7-section-head h2 {
  max-width: 920px;
  margin-bottom: 0;
  font-size: clamp(44px, 4.6vw, 70px);
}

.v7-section-head > p {
  max-width: 560px;
  margin: 0;
  color: #65717a;
  font-size: 17px;
  line-height: 1.8;
}

/* Battery application */
.v7-battery {
  padding-block: clamp(100px, 11vw, 170px);
  background: var(--paper);
}

.v7-battery-stage {
  display: grid;
  min-height: 680px;
  align-items: center;
  color: var(--graphite);
  background: var(--white);
  box-shadow: 0 28px 90px rgba(16, 24, 32, .08);
  grid-template-columns: minmax(0, 1.18fr) minmax(420px, .82fr);
}

.v7-battery-image {
  position: relative;
  overflow: hidden;
  min-height: 0;
  aspect-ratio: 3 / 2;
  align-self: center;
  background: #f1eee8;
}

.v7-battery-image picture,
.v7-battery-image img {
  width: 100%;
  height: 100%;
}

.v7-battery-image img {
  object-fit: contain;
  object-position: center;
  transition: transform .7s var(--ease);
}

.v7-battery-stage:hover .v7-battery-image img {
  transform: scale(1.012);
}

.v7-map-marker {
  position: absolute;
  top: var(--y);
  left: var(--x);
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .84);
  border-radius: 50%;
  background: rgba(17, 24, 32, .76);
  box-shadow: 0 0 0 10px rgba(11, 98, 136, .14);
  transform: translate(-50%, -50%);
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}

.v7-map-marker::after {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal-blue);
  content: '';
}

.marker-cell { --x: 80%; --y: 52%; }
.marker-module { --x: 67.5%; --y: 59%; }
.marker-pack { --x: 71%; --y: 76%; }

.v7-battery-stage[data-active-application="cell"] .marker-module,
.v7-battery-stage[data-active-application="cell"] .marker-pack,
.v7-battery-stage[data-active-application="module"] .marker-cell,
.v7-battery-stage[data-active-application="module"] .marker-pack,
.v7-battery-stage[data-active-application="pack"] .marker-cell,
.v7-battery-stage[data-active-application="pack"] .marker-module {
  opacity: .28;
  transform: translate(-50%, -50%) scale(.72);
}

.v7-battery-content {
  display: flex;
  flex-direction: column;
  padding: clamp(44px, 5vw, 80px);
}

.v7-battery-tabs {
  display: flex;
  align-items: center;
  margin-bottom: auto;
  border-bottom: 1px solid var(--line);
}

.v7-battery-tabs button {
  position: relative;
  min-height: 58px;
  flex: 1;
  padding: 0 10px;
  border: 0;
  color: #879198;
  background: transparent;
  font-weight: 700;
}

.v7-battery-tabs button::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  background: var(--film-blue);
  content: '';
  transform: scaleX(0);
  transition: transform .3s var(--ease);
}

.v7-battery-tabs button.is-active {
  color: var(--graphite);
}

.v7-battery-tabs button.is-active::after {
  transform: scaleX(1);
}

.v7-battery-panel {
  padding-top: 48px;
  animation: v7-panel-in .5s var(--ease) both;
}

@keyframes v7-panel-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.v7-panel-index {
  color: var(--film-blue);
}

.v7-battery-panel h3 {
  max-width: 580px;
  margin-bottom: 22px;
  font-size: clamp(31px, 3vw, 48px);
}

.v7-battery-panel > p:not(.v7-panel-index) {
  margin-bottom: 26px;
  color: #5f6c75;
}

.v7-battery-panel ul {
  display: grid;
  padding: 0;
  margin: 0 0 30px;
  list-style: none;
  grid-template-columns: repeat(2, 1fr);
}

.v7-battery-panel li {
  padding: 12px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
  font-weight: 650;
}

.v7-battery-panel li:nth-child(odd) {
  padding-right: 16px;
}

/* Solutions matrix */
.v7-solutions {
  position: relative;
  overflow: hidden;
  min-height: 850px;
  color: var(--white);
  background: #102f41;
}

.v7-solutions-bg,
.v7-solutions-bg::after,
.v7-solutions-bg img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.v7-solutions-bg img {
  object-fit: cover;
  object-position: center;
  filter: saturate(.68) contrast(1.06);
}

.v7-solutions-bg::after {
  background: linear-gradient(90deg, rgba(7, 43, 61, .96), rgba(8, 54, 77, .84)), rgba(11, 98, 136, .58);
  content: '';
}

.v7-solutions-layout {
  position: relative;
  z-index: 2;
  display: grid;
  min-height: 850px;
  align-items: center;
  padding-block: 110px;
  grid-template-columns: minmax(400px, .82fr) minmax(600px, 1.18fr);
  gap: clamp(54px, 6vw, 108px);
}

.v7-solutions-intro h2 {
  margin-bottom: 28px;
  font-size: clamp(42px, 3.8vw, 64px);
}

.v7-solutions-intro > p:not(.eyebrow) {
  max-width: 560px;
  margin-bottom: 38px;
  color: rgba(255, 255, 255, .72);
  font-size: 17px;
  line-height: 1.85;
}

.v7-solution-grid {
  display: grid;
  border-top: 1px solid rgba(255, 255, 255, .28);
  border-left: 1px solid rgba(255, 255, 255, .28);
  grid-template-columns: repeat(2, 1fr);
}

.v7-solution-grid > a {
  position: relative;
  display: grid;
  min-height: 300px;
  align-content: space-between;
  padding: 34px;
  border-right: 1px solid rgba(255, 255, 255, .28);
  border-bottom: 1px solid rgba(255, 255, 255, .28);
  transition: color .3s var(--ease), background .3s var(--ease);
}

.v7-solution-grid > a:hover,
.v7-solution-grid > a.is-primary {
  color: var(--graphite);
  background: var(--white);
}

.v7-solution-grid > a > span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
}

.v7-solution-grid small {
  display: block;
  margin-bottom: 12px;
  color: #9fcedf;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .12em;
}

.v7-solution-grid > a:hover small,
.v7-solution-grid > a.is-primary small {
  color: var(--film-blue);
}

.v7-solution-grid h3 {
  margin-bottom: 14px;
  font-size: clamp(26px, 2.2vw, 34px);
}

.v7-solution-grid p {
  margin: 0;
  color: rgba(255, 255, 255, .66);
  font-size: 13px;
  line-height: 1.7;
}

.v7-solution-grid > a:hover p,
.v7-solution-grid > a.is-primary p {
  color: #67737c;
}

.v7-solution-grid b {
  position: absolute;
  top: 30px;
  right: 30px;
  font-size: 18px;
  font-weight: 400;
}

/* Product editorial row */
.v7-product-story {
  padding-block: clamp(100px, 11vw, 172px);
  background: var(--white);
}

.v7-product-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(22px, 2.4vw, 38px);
}

.v7-product-row > a {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.v7-product-row figure {
  overflow: hidden;
  aspect-ratio: 4 / 3;
  margin: 0;
  background: var(--paper);
}

.v7-product-row img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .65s var(--ease);
}

.v7-product-row > a:hover img {
  transform: scale(1.022);
}

.v7-product-row > a > div {
  display: flex;
  min-height: 290px;
  align-items: flex-start;
  flex-direction: column;
  padding: 30px 2px 0;
  border-top: 3px solid var(--graphite);
}

.v7-product-row span {
  margin-bottom: 15px;
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.v7-product-row h3 {
  margin-bottom: 15px;
  font-size: clamp(29px, 2.4vw, 38px);
}

.v7-product-row p {
  color: #68747c;
  font-size: 14px;
}

.v7-product-row b {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-top: auto;
  border-bottom: 1px solid currentColor;
  font-size: 13px;
}

.v7-product-row i {
  color: var(--film-blue);
  font-style: normal;
}

/* Manufacturing */
.v7-manufacturing {
  display: grid;
  min-height: 850px;
  color: var(--white);
  background: var(--graphite);
  grid-template-columns: 1.15fr .85fr;
}

.v7-manufacturing-media {
  overflow: hidden;
  min-height: 680px;
}

.v7-manufacturing-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .8s var(--ease);
}

.v7-manufacturing:hover .v7-manufacturing-media img {
  transform: scale(1.016);
}

.v7-manufacturing-copy {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  flex-direction: column;
  padding: clamp(72px, 7vw, 120px);
}

.v7-manufacturing-copy h2 {
  margin-bottom: 30px;
  font-size: clamp(45px, 4.7vw, 72px);
}

.v7-manufacturing-copy > p:not(.eyebrow) {
  max-width: 620px;
  color: #b9c3c9;
  font-size: 17px;
}

.v7-process-track {
  width: 100%;
  padding: 0;
  margin: 48px 0 34px;
  list-style: none;
}

.v7-process-track li {
  display: grid;
  min-height: 58px;
  align-items: center;
  border-top: 1px solid var(--line-dark);
  grid-template-columns: 54px 1fr;
}

.v7-process-track li:last-child {
  border-bottom: 1px solid var(--line-dark);
}

.v7-process-track span {
  color: #7bc3dd;
  font-family: var(--mono);
  font-size: 10px;
}

.v7-process-track b {
  font-size: 14px;
}

.v7-link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
}

.v7-manufacturing .text-link {
  color: var(--white);
}

/* Industries */
.v7-industries {
  padding-block: clamp(100px, 11vw, 168px);
  background: var(--paper);
}

.v7-industries .v7-section-head h2 {
  font-size: clamp(44px, 4.1vw, 64px);
}

.v7-industry-list {
  border-top: 1px solid #bbc4ca;
}

.v7-industry-list > a {
  display: grid;
  min-height: 142px;
  align-items: center;
  padding: 22px 0;
  border-bottom: 1px solid #bbc4ca;
  grid-template-columns: 150px minmax(260px, .9fr) minmax(260px, 1fr) 44px;
  gap: 24px;
  transition: color .25s var(--ease), padding .25s var(--ease);
}

.v7-industry-list > a:hover {
  padding-right: 18px;
  padding-left: 18px;
  color: var(--white);
  background: var(--film-blue);
}

.v7-industry-list > a.is-featured {
  color: var(--white);
  background: var(--graphite);
}

.v7-industry-list span {
  padding-left: 20px;
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
}

.v7-industry-list > a:hover span,
.v7-industry-list > a.is-featured span {
  color: #87cde4;
}

.v7-industry-list h3,
.v7-industry-list p {
  margin: 0;
}

.v7-industry-list h3 {
  font-size: clamp(25px, 2.4vw, 36px);
}

.v7-industry-list p {
  color: #6b777f;
  font-size: 14px;
}

.v7-industry-list > a:hover p,
.v7-industry-list > a.is-featured p {
  color: rgba(255, 255, 255, .7);
}

.v7-industry-list b {
  font-size: 21px;
  font-weight: 400;
}

/* Final CTA */
.v7-final-cta {
  position: relative;
  overflow: hidden;
  min-height: 720px;
  color: var(--white);
  background: var(--graphite);
}

.v7-final-bg,
.v7-final-bg::after,
.v7-final-bg img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.v7-final-bg img {
  object-fit: cover;
}

.v7-final-bg::after {
  background: linear-gradient(90deg, rgba(5, 13, 19, .91), rgba(5, 13, 19, .55) 58%, rgba(5, 13, 19, .32));
  content: '';
}

.v7-final-content {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 720px;
  align-items: flex-start;
  justify-content: center;
  flex-direction: column;
}

.v7-final-content h2 {
  max-width: 970px;
  margin-bottom: 28px;
  font-size: clamp(50px, 5.5vw, 84px);
}

.v7-final-content > p:not(.eyebrow) {
  max-width: 650px;
  margin-bottom: 38px;
  color: rgba(255, 255, 255, .75);
  font-size: 18px;
}

/* V7 footer */
.site-footer {
  background: #091117;
}

.footer-main {
  padding-block: 88px 70px;
  grid-template-columns: 1.12fr 1fr;
  gap: clamp(60px, 9vw, 150px);
}

.footer-brand {
  width: 270px;
}

.footer-statement {
  max-width: 560px;
  margin-top: 42px;
  font-size: clamp(32px, 3.4vw, 52px);
}

.footer-contact {
  display: grid;
  margin-top: 40px;
  gap: 5px;
}

.footer-contact a,
.footer-contact p {
  margin: 0;
  color: #a8b5bd;
  font-size: 13px;
  line-height: 1.8;
}

.footer-contact a:first-child {
  color: var(--white);
  font-family: var(--display);
  font-size: 22px;
  font-weight: 600;
}

.footer-links {
  grid-template-columns: repeat(3, 1fr);
}

.footer-bottom {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 24px;
}

.footer-bottom a {
  color: #89969e;
  font-size: 12px;
}

/* Existing inner pages inherit the new visual discipline */
body:not(.v7-home) .page-hero {
  background: var(--white);
}

body:not(.v7-home) .page-hero h1 {
  max-width: 980px;
  font-size: clamp(50px, 5.8vw, 88px);
}

body:not(.v7-home) .solution-hero,
body:not(.v7-home) .product-detail-hero {
  background: var(--graphite);
}

body:not(.v7-home) .page-hero-with-media {
  padding-bottom: 0;
}

/* Responsive */
@media (max-width: 1260px) {
  :root {
    --shell: min(1180px, calc(100vw - 64px));
  }

  .header-phone {
    display: none;
  }

  .header-inner {
    grid-template-columns: minmax(210px, 1fr) auto auto;
    gap: 18px;
  }

  .brand {
    width: 220px;
  }

  .desktop-nav .nav-top-link {
    padding-inline: 10px;
    font-size: 13px;
  }

  .v7-scroll-cue {
    display: none;
  }

  .v7-company-copy {
    padding-inline: 60px;
  }

  .v7-solutions-layout {
    grid-template-columns: .8fr 1.2fr;
    gap: 58px;
  }

  .v7-solution-grid > a {
    min-height: 270px;
    padding: 28px;
  }

  .v7-manufacturing-copy {
    padding: 72px 54px;
  }
}

/* Keep the same desktop navigation in every language. Concise labels and
   the header's full width preserve business links before optional contact details. */
@media (min-width: 1041px) {
  html:not([lang="zh-CN"]) .header-inner {
    width: min(1800px, calc(100vw - 64px));
    grid-template-columns: minmax(210px, 1fr) auto auto;
    gap: clamp(12px, 1.4vw, 26px);
  }

  html:not([lang="zh-CN"]) .brand {
    width: clamp(210px, 18vw, 246px);
  }

  html:not([lang="zh-CN"]) .desktop-nav {
    gap: clamp(0px, .3vw, 6px);
  }

  html:not([lang="zh-CN"]) .nav-top-link {
    padding-inline: clamp(8px, .7vw, 13px);
    font-size: 14px;
    white-space: nowrap;
  }

  html:not([lang="zh-CN"]) .header-contact {
    margin-left: 14px;
    padding-inline: 16px;
  }
}

@media (min-width: 1041px) and (max-width: 1600px) {
  html:not([lang="zh-CN"]) .header-phone {
    display: none;
  }
}

@media (max-width: 1040px) {
  :root {
    --shell: calc(100vw - 48px);
  }

  .desktop-nav,
  .header-contact {
    display: none;
  }

  .header-inner {
    min-height: 78px;
    grid-template-columns: 1fr auto;
  }

  .brand {
    width: min(230px, 48vw);
  }

  .menu-toggle {
    display: block;
  }

  .site-header.is-overlay:not(.is-scrolled) .menu-toggle span {
    background: var(--white);
  }

  .site-header.is-overlay:not(.is-scrolled):has(.menu-toggle[aria-expanded="true"]) {
    color: var(--graphite);
    border-bottom-color: var(--line);
    background: var(--white);
  }

  .site-header.is-overlay:not(.is-scrolled):has(.menu-toggle[aria-expanded="true"]) .brand-logo-color {
    opacity: 1;
  }

  .site-header.is-overlay:not(.is-scrolled):has(.menu-toggle[aria-expanded="true"]) .brand-logo-inverse {
    opacity: 0;
  }

  .site-header.is-overlay:not(.is-scrolled):has(.menu-toggle[aria-expanded="true"]) .menu-toggle span {
    background: var(--graphite);
  }

  .mobile-menu {
    height: calc(100vh - 78px);
    height: calc(100dvh - 78px);
  }

  .v7-hero-copy h1,
  .v7-hero-copy h2 {
    max-width: 760px;
  }

  .v7-hero-controls {
    grid-template-columns: 42px 1fr 42px 42px;
  }

  .v7-company {
    grid-template-columns: 1fr;
  }

  .v7-company-media {
    min-height: 62vw;
    max-height: 690px;
  }

  .v7-company-copy {
    padding: 90px var(--shell-gap, 48px);
  }

  .v7-section-head {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .v7-battery-stage {
    grid-template-columns: 1fr;
  }

  .v7-battery-image {
    width: 100%;
    min-height: 0;
    max-height: none;
  }

  .v7-battery-content {
    min-height: 590px;
  }

  .v7-solutions-layout {
    grid-template-columns: 1fr;
    gap: 70px;
  }

  .v7-solutions-intro {
    max-width: 720px;
  }

  .v7-product-row {
    grid-template-columns: 1fr 1fr;
  }

  .v7-product-row > a:last-child {
    grid-column: 1 / -1;
  }

  .v7-product-row > a:last-child figure {
    aspect-ratio: 16 / 7;
  }

  .v7-product-row > a:last-child > div {
    min-height: 240px;
  }

  .v7-manufacturing {
    grid-template-columns: 1fr;
  }

  .v7-manufacturing-media {
    min-height: 66vw;
    max-height: 760px;
  }

  .v7-industry-list > a {
    grid-template-columns: 115px minmax(220px, 1fr) minmax(210px, .9fr) 34px;
  }

  .footer-main {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  :root {
    --shell: calc(100vw - 32px);
  }

  html {
    scroll-padding-top: 72px;
  }

  .header-inner {
    min-height: 72px;
  }

  .brand {
    width: min(214px, 66vw);
  }

  .mobile-menu {
    height: calc(100vh - 72px);
    height: calc(100dvh - 72px);
    padding: 26px 20px;
  }

  .v7-hero {
    min-height: 680px;
    height: 100svh;
  }

  .v7-hero-slide:first-child .v7-hero-media img {
    object-position: 70% center;
  }

  .v7-hero-slide:nth-child(2) .v7-hero-media img {
    object-position: 61% center;
  }

  .v7-hero-shade {
    background: linear-gradient(90deg, rgba(7, 14, 20, .76), rgba(7, 14, 20, .48)), linear-gradient(0deg, rgba(7, 14, 20, .78) 0%, rgba(7, 14, 20, .12) 65%);
  }

  .v7-hero-copy {
    justify-content: flex-end;
    padding-top: 104px;
    padding-bottom: 156px;
  }

  .v7-hero-copy h1,
  .v7-hero-copy h2 {
    margin-bottom: 20px;
    font-size: clamp(46px, 13vw, 64px);
    line-height: 1.04;
  }

  .v7-hero-copy > p:not(.v7-kicker) {
    margin-bottom: 26px;
    font-size: 16px;
    line-height: 1.65;
  }

  .v7-kicker {
    margin-bottom: 14px;
    font-size: 10px;
  }

  .v7-hero-actions {
    display: grid;
    width: 100%;
    gap: 10px;
    grid-template-columns: 1fr 1fr;
  }

  .v7-hero-actions .button,
  .v7-ghost-link {
    width: 100%;
    min-width: 0;
    justify-content: center;
    padding-inline: 10px;
    font-size: 12px;
  }

  .v7-hero-controls {
    bottom: 26px;
    grid-template-columns: 44px minmax(0, 1fr) 44px 44px;
    gap: 8px;
  }

  .v7-hero-arrow,
  .v7-hero-pause {
    width: 44px;
    height: 44px;
  }

  .v7-hero-progress {
    gap: 7px;
  }

  .v7-hero-progress button {
    grid-template-columns: 18px 1fr;
    gap: 4px;
  }

  .v7-hero-progress b {
    display: none;
  }

  .v7-company-media {
    min-height: 78vw;
  }

  .v7-company-copy {
    padding: 72px 16px;
  }

  .v7-company-copy h2 {
    font-size: clamp(38px, 10.5vw, 52px);
  }

  .v7-lede {
    font-size: 17px;
  }

  .v7-capability-rail {
    margin-top: 44px;
    grid-template-columns: repeat(2, 1fr);
  }

  .v7-section-head h2 {
    font-size: clamp(38px, 10.5vw, 52px);
  }

  .v7-section-head > p {
    font-size: 15px;
  }

  .v7-battery {
    padding-block: 84px;
  }

  .v7-battery-stage {
    width: calc(100% + 32px);
    margin-left: -16px;
    box-shadow: none;
  }

  .v7-battery-image {
    min-height: 0;
  }

  .v7-battery-content {
    min-height: 0;
    padding: 34px 20px 54px;
  }

  .v7-battery-tabs {
    margin-bottom: 0;
  }

  .v7-battery-panel {
    padding-top: 36px;
  }

  .v7-battery-panel h3 {
    font-size: 34px;
  }

  .v7-battery-panel ul {
    grid-template-columns: 1fr;
  }

  .v7-battery-panel li:nth-child(odd) {
    padding-right: 0;
  }

  .v7-solutions-layout {
    min-height: 0;
    width: 100%;
    padding: 84px 16px;
  }

  .v7-solutions-intro h2 {
    font-size: 43px;
  }

  .v7-solution-grid {
    grid-template-columns: 1fr;
  }

  .v7-solution-grid > a {
    min-height: 230px;
  }

  .v7-product-story,
  .v7-industries {
    padding-block: 84px;
  }

  .v7-product-row {
    grid-template-columns: 1fr;
  }

  .v7-product-row > a:last-child {
    grid-column: auto;
  }

  .v7-product-row > a:last-child figure,
  .v7-product-row figure {
    aspect-ratio: 4 / 3;
  }

  .v7-product-row > a > div,
  .v7-product-row > a:last-child > div {
    min-height: 245px;
  }

  .v7-manufacturing-media {
    min-height: 82vw;
  }

  .v7-manufacturing-copy {
    padding: 72px 16px;
  }

  .v7-manufacturing-copy h2 {
    font-size: 43px;
  }

  .v7-manufacturing-copy > p:not(.eyebrow) {
    font-size: 15px;
  }

  .v7-link-row {
    display: grid;
    width: 100%;
    gap: 10px;
  }

  .v7-link-row .text-link {
    justify-content: space-between;
  }

  .v7-industry-list > a,
  .v7-industry-list > a:hover {
    min-height: 150px;
    padding: 24px 16px;
    grid-template-columns: 1fr 30px;
    gap: 8px 14px;
  }

  .v7-industry-list span,
  .v7-industry-list h3,
  .v7-industry-list p {
    padding-left: 0;
    grid-column: 1;
  }

  .v7-industry-list span {
    grid-row: 1;
  }

  .v7-industry-list h3 {
    grid-row: 2;
  }

  .v7-industry-list p {
    grid-row: 3;
  }

  .v7-industry-list b {
    grid-row: 1 / 4;
    grid-column: 2;
  }

  .v7-final-cta,
  .v7-final-content {
    min-height: 660px;
  }

  .v7-final-content h2 {
    font-size: 39px;
  }

  .v7-final-content > p:not(.eyebrow) {
    font-size: 16px;
  }

  .v7-final-content .button {
    width: auto;
  }

  .footer-main {
    padding-block: 68px 48px;
  }

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

  .footer-bottom {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .v7-hero-progress button.is-active i::after,
  .v7-hero.is-changing::after {
    animation: none !important;
  }

  .v7-hero-media img {
    transform: none !important;
  }
}

@media (max-width: 920px) {
  .solution-card-content {
    min-height: 280px;
  }

  .solution-overview > .shell {
    width: calc(100vw - 48px);
  }

  .solution-overview-heading {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 700px) {
  .solution-card-media {
    aspect-ratio: 16 / 9;
  }

  .solution-card--module h3 {
    font-size: 32px;
    white-space: nowrap;
  }

  .solution-card-content {
    min-height: 270px;
    padding: 30px 22px 32px;
  }

  .solution-card--visual h3 {
    margin-top: 24px;
  }

  .solution-overview {
    padding-block: 72px;
    scroll-margin-top: 70px;
  }

  .solution-overview > .shell {
    width: calc(100vw - 32px);
  }

  .solution-overview-heading {
    margin-bottom: 30px;
  }

  .solution-overview-heading h2 {
    font-size: 40px;
  }

  .solution-overview-heading > p {
    font-size: 15px;
  }

  .solution-overview-viewport {
    overflow-x: auto;
    padding: 0;
    box-shadow: none;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-inline: contain;
    scrollbar-color: var(--film-blue) #d7dde1;
    scrollbar-width: thin;
    touch-action: pan-x;
  }

  .solution-overview-viewport img {
    width: 1040px;
    max-width: none;
  }

  .solution-overview-figure figcaption {
    min-height: 0;
    padding-top: 16px;
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .solution-overview-swipe {
    display: block;
    color: var(--film-blue);
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .06em;
  }

  .solution-overview-figure .text-link {
    width: 100%;
    justify-content: space-between;
    margin-top: 6px;
  }

  .solution-overview + .layer-diagram {
    padding: 48px 16px;
  }

  .solution-overview + .layer-diagram .layer {
    min-height: 0;
    padding: 22px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .solution-card-media img,
  .solution-card--visual:hover .solution-card-media img {
    transition: none;
  }
}

/* V7.1 — single-page product directory */
.page-hero--catalog {
  padding-block: clamp(76px, 7.5vw, 116px);
}

.page-hero--catalog h1 {
  font-size: clamp(52px, 6vw, 88px);
}

.catalog-principles {
  display: flex;
  margin-top: 30px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 10px 26px;
}

.catalog-principles span {
  position: relative;
  color: #59666f;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .06em;
}

.catalog-principles span:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -14px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--film-blue);
  content: '';
  transform: translateY(-50%);
}

.catalog-v71 {
  padding-bottom: clamp(88px, 10vw, 152px);
  background: #edf0f1;
}

.catalog-toolbar {
  position: sticky;
  z-index: 30;
  top: 88px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(244, 246, 247, .96);
  backdrop-filter: blur(16px);
}

.catalog-toolbar-inner {
  display: grid;
  min-height: 82px;
  align-items: center;
  grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
  gap: 28px;
}

.catalog-search--inline {
  display: block;
  min-width: 0;
}

.catalog-search--inline label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.catalog-search--inline > div {
  position: relative;
}

.catalog-search--inline input {
  width: 100%;
  height: 48px;
  padding: 10px 44px;
  border: 1px solid #ccd5db;
  border-radius: 3px;
  background: var(--white);
  appearance: none;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.catalog-search--inline input::placeholder {
  color: #6b7881;
  opacity: 1;
}

.catalog-search--inline input:focus {
  border-color: var(--film-blue);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(24, 79, 120, .09);
}

.catalog-search--inline input::-webkit-search-cancel-button,
.catalog-search--inline input::-webkit-search-decoration {
  -webkit-appearance: none;
}

.catalog-search-icon,
.catalog-search-clear svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
}

.catalog-search-icon {
  position: absolute;
  top: 15px;
  left: 15px;
  color: #607683;
  pointer-events: none;
}

.catalog-search-clear {
  position: absolute;
  top: 2px;
  right: 2px;
  display: grid;
  width: 44px;
  height: 44px;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 2px;
  color: #647580;
  background: transparent;
}

.catalog-search-clear:hover {
  color: var(--film-blue);
  background: #edf4f7;
}

.catalog-search-clear:focus-visible {
  outline: 2px solid var(--film-blue);
  outline-offset: -4px;
}

.catalog-status {
  margin-block: 0;
  padding-top: 20px;
  color: #536671;
  font-size: 14px;
}

.catalog-status:empty {
  padding-top: 0;
}

.catalog-jumps {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: center;
  gap: clamp(17px, 2vw, 32px);
}

.catalog-jumps a {
  position: relative;
  padding: 29px 0 25px;
  color: #55626b;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.catalog-jumps a::after {
  position: absolute;
  right: 0;
  bottom: 19px;
  left: 0;
  height: 2px;
  background: var(--film-blue);
  content: '';
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}

.catalog-jumps a:hover,
.catalog-jumps a:focus-visible {
  color: var(--graphite);
}

.catalog-jumps a:hover::after,
.catalog-jumps a:focus-visible::after {
  transform: scaleX(1);
}

.product-index-sections {
  display: grid;
  padding-top: clamp(72px, 8vw, 112px);
  gap: clamp(80px, 9vw, 132px);
}

.product-group {
  scroll-margin-top: 194px;
}

.product-group-heading {
  display: grid;
  margin-bottom: 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--graphite);
  align-items: end;
  grid-template-columns: minmax(280px, .85fr) minmax(340px, 1.15fr) auto;
  gap: 42px;
}

.product-group-heading .eyebrow {
  margin-bottom: 12px;
}

.product-group-heading h2 {
  margin: 0;
  font-size: clamp(31px, 3vw, 46px);
}

.product-group-heading > p {
  max-width: 600px;
  margin: 0;
  color: #65727b;
  font-size: 14px;
  line-height: 1.8;
}

.product-group-heading > span {
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.product-directory {
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.product-entry {
  display: grid;
  min-height: 154px;
  padding: 20px 22px;
  border-bottom: 1px solid var(--line);
  align-items: center;
  grid-template-columns: 156px minmax(190px, .8fr) minmax(260px, 1.35fr) minmax(145px, .7fr) 118px;
  gap: 24px;
  background: var(--white);
  scroll-margin-top: 194px;
  transition: background .22s var(--ease), box-shadow .22s var(--ease);
}

.product-entry--text {
  min-height: 126px;
  grid-template-columns: minmax(370px, 1.15fr) minmax(280px, 1.35fr) minmax(145px, .7fr) 118px;
  background: linear-gradient(90deg, #f9fbfc 0, var(--white) 38%);
}

.product-entry:hover {
  background: #f9fbfc;
  box-shadow: inset 3px 0 var(--film-blue);
}

.product-entry:target {
  position: relative;
  z-index: 1;
  box-shadow: inset 4px 0 var(--film-blue), 0 0 0 1px var(--film-blue);
}

.product-entry[hidden],
.product-group[hidden] {
  display: none !important;
}

.product-entry-media {
  display: block;
  width: 156px;
  height: 112px;
  margin: 0;
  overflow: hidden;
  background: #e7eaec;
}

.product-entry-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-entry-media--pair {
  display: grid;
  border: 1px solid #e0e5e8;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: #dbe1e4;
}

.product-entry-media--pair img {
  min-width: 0;
  background: #e7eaec;
}

.product-entry-title {
  min-width: 0;
}

.product-entry-proof {
  display: inline-flex;
  margin-bottom: 11px;
  align-items: center;
  gap: 6px;
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
}

.product-entry-proof::before {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  content: '';
}

.product-entry-proof--text {
  color: #68757e;
}

.product-entry-proof--research {
  color: #8c6827;
}

.product-entry-proof--brand {
  color: #184f78;
}

.product-entry-title h3 {
  margin: 0;
  font-size: clamp(22px, 1.85vw, 28px);
  line-height: 1.18;
  letter-spacing: -.035em;
  text-wrap: balance;
}

.product-entry-copy {
  margin: 0;
  color: #64717a;
  font-size: 14px;
  line-height: 1.75;
}

.product-entry-meta,
.product-entry-meta div,
.product-entry-meta dt,
.product-entry-meta dd {
  margin: 0;
}

.product-entry-meta {
  min-width: 0;
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.product-entry-meta dt {
  margin-bottom: 6px;
  color: #89939a;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .08em;
}

.product-entry-meta dd {
  color: #3f4b54;
  font-size: 12px;
  font-weight: 650;
  line-height: 1.55;
}

.product-entry-action {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-bottom: 1px solid #8a969e;
  color: #25313a;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.product-entry-action span {
  color: var(--film-blue);
  font-size: 16px;
}

.product-entry-action:hover {
  color: var(--film-blue);
  border-color: var(--film-blue);
}

.catalog-empty {
  padding: clamp(64px, 8vw, 96px) 30px;
  background: var(--white);
}

.catalog-empty p {
  color: #66727b;
}

.catalog-empty .button {
  margin-top: 20px;
}

.catalog-next {
  display: grid;
  min-height: 330px;
  padding: clamp(38px, 5vw, 68px);
  color: var(--white);
  background: var(--graphite);
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
  gap: clamp(44px, 8vw, 120px);
}

.catalog-next h2 {
  margin-bottom: 18px;
  font-size: clamp(32px, 3.3vw, 48px);
}

.catalog-next p:not(.eyebrow) {
  max-width: 680px;
  margin: 0;
  color: #aeb9c0;
}

.catalog-next > div:last-child {
  display: grid;
  align-content: center;
  border-top: 1px solid #39444c;
}

.catalog-next a {
  display: flex;
  min-height: 76px;
  padding: 0 4px;
  border-bottom: 1px solid #39444c;
  align-items: center;
  justify-content: space-between;
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
}

.catalog-next a b {
  color: #7cc5e2;
  font-size: 20px;
  font-weight: 400;
  transition: transform .2s var(--ease);
}

.catalog-next a:hover b {
  transform: translateX(5px);
}

@media (max-width: 1180px) {
  .catalog-toolbar {
    top: 78px;
  }

  .catalog-toolbar-inner {
    min-height: 116px;
    padding-block: 12px;
    grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
    gap: 10px 22px;
  }

  .catalog-jumps {
    overflow-x: auto;
    justify-content: flex-start;
    grid-column: 1 / 3;
    grid-row: 2;
    scrollbar-width: none;
  }

  .catalog-jumps::-webkit-scrollbar {
    display: none;
  }

  .catalog-jumps a {
    padding: 8px 0 12px;
  }

  .catalog-jumps a::after {
    bottom: 5px;
  }

  .product-group,
  .product-entry {
    scroll-margin-top: 218px;
  }

  .product-entry {
    grid-template-columns: 132px minmax(200px, .8fr) minmax(260px, 1.2fr);
    gap: 18px 22px;
  }

  .product-entry--text {
    grid-template-columns: minmax(290px, .8fr) minmax(300px, 1.2fr);
  }

  .product-entry-media {
    width: 132px;
    height: 100px;
    grid-column: 1;
    grid-row: 1 / 3;
  }

  .product-entry-title {
    grid-column: 2;
    grid-row: 1;
  }

  .product-entry-copy {
    grid-column: 3;
    grid-row: 1;
  }

  .product-entry-meta {
    grid-column: 2;
    grid-row: 2;
    padding-left: 0;
    border-left: 0;
  }

  .product-entry-action {
    grid-column: 3;
    grid-row: 2;
    width: 138px;
  }

  .product-entry--text .product-entry-title {
    grid-column: 1;
  }

  .product-entry--text .product-entry-copy {
    grid-column: 2;
  }

  .product-entry--text .product-entry-meta {
    grid-column: 1;
  }

  .product-entry--text .product-entry-action {
    grid-column: 2;
  }
}

@media (max-width: 760px) {
  .page-hero--catalog {
    padding-block: 72px;
  }

  .catalog-principles {
    gap: 9px 20px;
  }

  .catalog-toolbar {
    position: static;
  }

  .catalog-toolbar-inner {
    display: grid;
    min-height: 0;
    padding-block: 16px 14px;
    grid-template-columns: minmax(0, 1fr);
    gap: 12px 14px;
  }

  .catalog-search--inline {
    grid-column: 1 / -1;
  }

  .catalog-jumps {
    grid-column: 1;
    grid-row: 2;
    gap: 22px;
    scroll-snap-type: x proximity;
  }

  .catalog-jumps a {
    min-height: 38px;
    scroll-snap-align: start;
  }

  .product-index-sections {
    padding-top: 68px;
    gap: 88px;
  }

  .product-group,
  .product-entry {
    scroll-margin-top: 82px;
  }

  .product-group-heading {
    grid-template-columns: 1fr auto;
    gap: 12px 14px;
  }

  .product-group-heading > div {
    grid-column: 1;
  }

  .product-group-heading > span {
    grid-column: 2;
    grid-row: 1;
    align-self: end;
    padding-bottom: 5px;
  }

  .product-group-heading > p {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .product-entry,
  .product-entry--text {
    min-height: 0;
    padding: 18px 14px 20px;
    grid-template-columns: minmax(0, 1fr) 104px;
    grid-template-areas:
      'title media'
      'copy copy'
      'meta meta'
      'action action';
    gap: 14px 16px;
  }

  .product-entry--text {
    grid-template-areas:
      'title title'
      'copy copy'
      'meta meta'
      'action action';
  }

  .product-entry-media {
    width: 104px;
    height: 78px;
    grid-area: media;
  }

  .product-entry-title,
  .product-entry--text .product-entry-title {
    grid-area: title;
  }

  .product-entry-copy,
  .product-entry--text .product-entry-copy {
    grid-area: copy;
  }

  .product-entry-meta,
  .product-entry--text .product-entry-meta {
    padding-top: 12px;
    border-top: 1px solid var(--line);
    grid-area: meta;
  }

  .product-entry-action,
  .product-entry--text .product-entry-action {
    width: 100%;
    grid-area: action;
  }

  .product-entry-title h3 {
    font-size: 21px;
  }

  .catalog-next {
    min-height: 0;
    padding: 38px 24px;
    grid-template-columns: 1fr;
    gap: 38px;
  }
}

/* V7.1.1 — restore V7's photographic card language */
.catalog-v711 .product-group-heading {
  grid-template-columns: minmax(280px, .85fr) minmax(340px, 1.15fr);
}

.catalog-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.catalog-card-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.catalog-product-card {
  display: flex;
  min-width: 0;
  overflow: hidden;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--white);
  scroll-margin-top: 194px;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}

.catalog-product-card:hover {
  border-color: #aebbc3;
  box-shadow: 0 18px 44px rgba(17, 24, 32, .07);
  transform: translateY(-2px);
}

.catalog-product-card:target {
  border-color: var(--film-blue);
  box-shadow: 0 0 0 2px var(--film-blue);
}

.catalog-product-card[hidden],
.catalog-material-more[hidden] {
  display: none !important;
}

.catalog-product-card > figure {
  position: relative;
  display: grid;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #e6eaec;
}

.catalog-product-card > figure > img {
  width: 100%;
  height: 100%;
  min-width: 0;
  object-fit: contain;
  transition: transform .6s var(--ease);
}

.catalog-product-card:hover > figure > img {
  transform: scale(1.018);
}

.catalog-product-card > figure.catalog-card-media-pair {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: #d5dce0;
}

.catalog-card-media-pair > img {
  background: #e6eaec;
}

.catalog-product-card figcaption {
  position: absolute;
  z-index: 2;
  bottom: 0;
  left: 0;
  padding: 8px 11px;
  color: #eef7fa;
  background: rgba(14, 24, 31, .82);
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.catalog-product-card > div {
  display: flex;
  min-height: 250px;
  padding: 28px;
  flex: 1;
  flex-direction: column;
}

.catalog-card-kicker {
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .09em;
}

.catalog-product-card h3 {
  margin: 13px 0 15px;
  font-size: clamp(25px, 2vw, 31px);
  letter-spacing: -.04em;
}

.catalog-product-card p {
  margin: 0;
  color: #65727b;
  font-size: 14px;
  line-height: 1.75;
}

.catalog-product-card footer {
  display: flex;
  margin-top: auto;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.catalog-product-card footer small {
  color: #5f6f79;
  font-size: 12px;
}

.catalog-product-card footer a,
.catalog-material-more > a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  gap: 11px;
  border-bottom: 1px solid #8a969e;
  color: #25313a;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.catalog-product-card footer b,
.catalog-material-more > a b {
  color: var(--film-blue);
  font-size: 16px;
  font-weight: 500;
}

.catalog-product-card footer a:hover,
.catalog-material-more > a:hover {
  color: var(--film-blue);
  border-color: var(--film-blue);
}

.catalog-material-more {
  display: grid;
  min-height: 148px;
  margin-top: 18px;
  padding: 28px 30px;
  border: 1px solid var(--line);
  align-items: center;
  grid-template-columns: minmax(240px, .72fr) minmax(340px, 1.35fr) auto;
  gap: 34px;
  background: linear-gradient(105deg, #f8fafb 0%, var(--white) 48%);
  scroll-margin-top: 194px;
}

.catalog-material-more > div > span {
  display: block;
  margin-bottom: 9px;
  color: var(--film-blue);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.catalog-material-more h3 {
  margin: 0;
  font-size: clamp(22px, 2.1vw, 30px);
}

.catalog-material-more p {
  margin: 0;
  color: #64717a;
  font-size: 14px;
  line-height: 1.8;
}

.catalog-material-more p strong {
  color: #26323a;
  font-weight: 700;
}

@media (min-width: 1181px) {
  .catalog-v711 .catalog-toolbar-inner {
    grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
  }
}

@media (max-width: 1040px) {
  .catalog-card-grid,
  .catalog-card-grid--two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .catalog-material-more {
    grid-template-columns: minmax(210px, .7fr) minmax(0, 1.3fr);
  }

  .catalog-material-more > a {
    width: 132px;
    grid-column: 2;
  }
}

@media (max-width: 700px) {
  .catalog-v711 .product-group-heading {
    grid-template-columns: 1fr;
  }

  .catalog-card-grid,
  .catalog-card-grid--two {
    grid-template-columns: 1fr;
  }

  .catalog-product-card {
    scroll-margin-top: 82px;
  }

  .catalog-product-card > div {
    min-height: 224px;
    padding: 24px 22px;
  }

  .catalog-product-card h3 {
    font-size: 27px;
  }

  .catalog-material-more {
    min-height: 0;
    padding: 25px 22px;
    grid-template-columns: 1fr;
    gap: 18px;
    scroll-margin-top: 82px;
  }

  .catalog-material-more > a {
    width: 100%;
    grid-column: 1;
    justify-content: space-between;
  }
}

/* V7.1 unified typography system */
:root {
  --type-display-xl: clamp(54px, 5.4vw, 84px);
  --type-display-lg: clamp(46px, 4.4vw, 64px);
  --type-heading-xl: clamp(40px, 3.8vw, 58px);
  --type-heading-lg: clamp(34px, 3vw, 46px);
  --type-heading-md: clamp(25px, 2.2vw, 32px);
  --type-heading-sm: clamp(22px, 1.9vw, 28px);
  --type-lede: clamp(17px, 1.3vw, 20px);
  --type-body: 16px;
  --type-small: 14px;
  --type-action: 14px;
  --type-action-compact: 14px;
  --type-meta: 12px;
  --leading-display: 1.06;
  --leading-heading: 1.14;
  --leading-lede: 1.68;
  --leading-body: 1.72;
  --leading-action: 1.4;
  --tracking-heading: -.038em;
  --tracking-meta: .1em;
  --weight-heading: 600;
  --weight-action: 600;
}

html:lang(de),
html:lang(fr) {
  --tracking-heading: -.022em;
  --tracking-meta: .06em;
}

html:lang(ja) {
  --display: "Avenir Next", "SF Pro Display", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", system-ui, sans-serif;
  --body: "SF Pro Text", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", system-ui, sans-serif;
  --tracking-heading: -.018em;
  --tracking-meta: .045em;
}

html:lang(ko) {
  --display: "Avenir Next", "SF Pro Display", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  --body: "SF Pro Text", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  --tracking-heading: -.018em;
  --tracking-meta: .045em;
}

body {
  font-size: var(--type-body);
  line-height: var(--leading-body);
}

h1,
h2,
h3 {
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  text-wrap: balance;
}

h1 {
  font-size: var(--type-display-lg);
  line-height: var(--leading-display);
}

h2 {
  font-size: var(--type-heading-lg);
  line-height: var(--leading-heading);
}

h3 {
  font-size: var(--type-heading-md);
  line-height: var(--leading-heading);
}

.hero-copy h1,
.v7-hero-copy h1,
.v7-hero-copy h2 {
  font-size: var(--type-display-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-display);
}

body:not(.v7-home) .page-hero h1,
.page-hero--catalog h1,
.product-detail-copy h1,
.contact-copy h1 {
  font-size: var(--type-display-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: 1.08;
}

.v7-section-head h2,
.v7-company-copy h2,
.v7-solutions-intro h2,
.v7-manufacturing-copy h2,
.v7-final-content h2,
.cta-band h2 {
  font-size: var(--type-heading-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
}

.section-heading h2,
.solution-overview-heading h2,
.split-feature-copy h2,
.evidence-box h2,
.catalog-next h2,
.product-group-heading h2,
.chapter-copy h3,
.battery-details h3,
.v7-battery-panel h3,
.footer-statement {
  font-size: var(--type-heading-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
  text-wrap: balance;
}

.solution-card h3,
.solution-card--module h3,
.v7-solution-grid h3,
.v7-product-row h3,
.v7-industry-list h3,
.industry-row h2,
.product-card h2,
.product-card h3,
.product-card--lead h2,
.product-card--lead h3,
.product-showcase-card h3,
.catalog-product-card h3,
.catalog-material-more h3,
.contact-form h2,
.catalog-empty h2 {
  font-size: var(--type-heading-md);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
  text-wrap: balance;
}

.detail-column h2,
.flow-step h3,
.process-item h3,
.legal-content h2 {
  font-size: var(--type-heading-sm);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
}

.lede,
.v7-lede,
.page-hero-copy,
.v7-section-head > p,
.solution-overview-heading > p,
.v7-hero-copy > p:not(.v7-kicker),
.v7-solutions-intro > p:not(.eyebrow),
.v7-manufacturing-copy > p:not(.eyebrow),
.v7-final-content > p:not(.eyebrow),
.cta-band p:not(.eyebrow) {
  font-size: var(--type-lede);
  line-height: var(--leading-lede);
}

.solution-card p,
.v7-solution-grid p,
.v7-product-row p,
.v7-industry-list p,
.product-card p,
.product-showcase-card p,
.product-entry-copy,
.catalog-product-card p,
.catalog-material-more p,
.flow-step p,
.process-item p {
  font-size: var(--type-body);
  line-height: var(--leading-body);
}

.eyebrow,
.v7-kicker,
.v7-panel-index,
.mega-kicker,
.solution-card-kicker,
.detail-column > span,
.flow-step > span,
.process-item > span,
.detail-list dt,
.contact-details dt,
.v7-capability-rail dt,
.v7-solution-grid > a > span,
.v7-solution-grid small,
.v7-product-row > a > div > span,
.v7-process-track span,
.v7-industry-list > a > span,
.catalog-principles span,
.catalog-family-heading > div > span,
.product-entry-proof,
.product-entry-meta dt,
.catalog-card-kicker,
.catalog-product-card figcaption,
.catalog-material-more > div > span {
  font-size: var(--type-meta);
  font-weight: 700;
  letter-spacing: var(--tracking-meta);
  line-height: 1.45;
}

.cta-band .eyebrow {
  max-width: none;
  margin: 0 0 16px;
  color: #cfe7f0;
  font-size: var(--type-meta);
  line-height: 1.45;
}

.button,
.header-contact,
.v7-hero-actions .button {
  font-size: var(--type-action);
  font-weight: var(--weight-action);
  letter-spacing: 0;
  line-height: var(--leading-action);
}

.button-small {
  font-size: var(--type-action-compact);
}

.text-link,
.mega-intro .text-link,
.catalog-family-heading .text-link,
.solution-card .text-link,
.solution-card--visual .text-link,
.solution-overview-figure .text-link,
.v7-ghost-link,
.v7-product-row b,
.product-entry-action,
.catalog-product-card footer a,
.catalog-material-more > a {
  font-size: var(--type-action-compact);
  font-weight: var(--weight-action);
  letter-spacing: 0;
  line-height: var(--leading-action);
}

.desktop-nav .nav-top-link,
.mobile-menu a,
.catalog-next a,
.catalog-search label,
.form-field label {
  font-weight: var(--weight-action);
  line-height: var(--leading-action);
}

.header-phone,
.header-contact,
html:lang(ja) .desktop-nav .nav-top-link,
html:lang(ko) .desktop-nav .nav-top-link {
  white-space: nowrap;
}

.product-card-facts dd,
.contact-details dd,
.v7-battery-panel li,
.product-entry-meta dd {
  font-weight: 600;
}

.solution-card--module h3 {
  white-space: normal;
}

html:lang(de) :is(h1, h2, h3, .button, .text-link, .mobile-menu a),
html:lang(fr) :is(h1, h2, h3, .button, .text-link, .mobile-menu a) {
  overflow-wrap: break-word;
  hyphens: auto;
}

html:lang(de) :is(.product-entry-action, .catalog-product-card footer a, .catalog-material-more > a),
html:lang(fr) :is(.product-entry-action, .catalog-product-card footer a, .catalog-material-more > a) {
  white-space: normal;
}

html:lang(ja) :is(h1, h2, h3, .button, .text-link, .mobile-menu a) {
  line-break: strict;
  word-break: normal;
}

html:lang(ko) :is(h1, h2, h3, .button, .text-link, .mobile-menu a) {
  word-break: keep-all;
  overflow-wrap: break-word;
}

@media (max-width: 760px) {
  :root {
    --type-display-xl: clamp(44px, 12vw, 56px);
    --type-display-lg: clamp(36px, 10vw, 42px);
    --type-heading-xl: clamp(35px, 9.2vw, 42px);
    --type-heading-lg: clamp(30px, 8vw, 37px);
    --type-heading-md: clamp(24px, 6.8vw, 29px);
    --type-heading-sm: clamp(22px, 6vw, 26px);
    --type-lede: 16px;
  }

  body {
    font-size: 16px;
  }

  .mobile-menu a {
    font-size: 20px;
  }

  .v7-hero-actions .button {
    font-size: 14px;
  }

  .v7-ghost-link {
    font-size: 13px;
  }
}

/* Reading layouts: bounded media and consistent information density. */
body:not(.v7-home) .section,
body:not(.v7-home) .solution-overview {
  padding-block: clamp(72px, 6vw, 112px);
}

body:not(.v7-home) .page-hero {
  padding-block: clamp(64px, 5.5vw, 96px);
}

body:not(.v7-home) .page-hero-with-media {
  padding-bottom: 0;
}

.page-hero-media {
  height: clamp(360px, 40vw, 560px);
  margin-top: 48px;
}

.page-hero-media > picture {
  width: 100%;
  height: 100%;
}

.detail-list dd,
.catalog-search--inline input {
  font-size: var(--type-body);
}

.battery-levels button,
.battery-list button,
.catalog-jumps a,
.form-field label {
  font-size: var(--type-action);
}

.detail-meta {
  font-size: var(--type-meta);
}

.v7-industry-list h3 {
  overflow-wrap: anywhere;
  hyphens: auto;
}

.battery-list button,
.flow-step {
  min-width: 0;
  overflow-wrap: anywhere;
  hyphens: auto;
}

.footer-main > * {
  min-width: 0;
}

.footer-links a,
.footer-links strong,
.footer-contact {
  overflow-wrap: anywhere;
  hyphens: auto;
}

.catalog-product-card footer {
  flex-wrap: wrap;
  gap: 12px 18px;
}

@media (min-width: 1181px) {
  .catalog-jumps {
    align-items: stretch;
    gap: 18px;
  }

  .catalog-jumps a {
    display: flex;
    min-height: 82px;
    padding-block: 14px;
    align-items: center;
    justify-content: center;
    line-height: 1.5;
    text-align: center;
    white-space: normal;
  }

  .catalog-jumps a::after {
    bottom: 8px;
  }
}

body.battery-atlas-page .page-hero {
  padding-block: clamp(48px, 4.5vw, 80px);
}

.battery-stage-intro {
  padding-block: 24px;
}

.battery-stage-intro > p {
  margin: 0;
  color: #b8c9d1;
  font-size: var(--type-action);
  line-height: 1.6;
}

.battery-viewer {
  --atlas-canvas-height: clamp(560px, calc(100svh - 160px), 760px);
  width: min(1560px, calc(100% - 64px));
  min-height: 0;
  margin-inline: auto;
  grid-template-columns: minmax(0, 3fr) minmax(340px, 2fr);
  border: 1px solid var(--line-dark);
}

.battery-canvas {
  top: 108px;
  height: var(--atlas-canvas-height);
  min-height: 0;
}

.battery-scene {
  width: min(100%, calc(var(--atlas-canvas-height) * 1.5));
}

.battery-viewer > div:last-child {
  min-width: 0;
  background: #0c141a;
}

.battery-details {
  min-height: var(--atlas-canvas-height);
  padding: 36px clamp(24px, 2.5vw, 40px);
}

@media (max-width: 920px) {
  .battery-viewer {
    width: 100%;
    grid-template-columns: 1fr;
    border-inline: 0;
  }

  .battery-canvas {
    position: relative;
    top: auto;
    height: auto;
  }

  .battery-scene {
    width: 100%;
  }

  .battery-details {
    min-height: 0;
    padding: 32px 24px 40px;
  }
}

@media (max-width: 760px) {
  body:not(.v7-home) .section,
  body:not(.v7-home) .solution-overview {
    padding-block: 56px;
  }

  body:not(.v7-home) .page-hero,
  body.battery-atlas-page .page-hero {
    padding-block: 48px;
  }

  body:not(.v7-home) .page-hero-with-media {
    padding-bottom: 0;
  }

  .page-hero-grid {
    gap: 24px;
  }

  .page-hero-media {
    height: clamp(220px, 64vw, 320px);
    margin-top: 32px;
  }

  .battery-stage-intro {
    padding-block: 18px;
  }

  .catalog-search--inline {
    display: block;
    width: 100%;
  }

  .catalog-jumps a {
    min-height: 44px;
  }
}

@media (max-width: 640px) {
  /* Keep the existing mobile crop and hotspot coordinates together. */
  .battery-scene {
    width: 150%;
  }
}

/* Language disclosure: one visual treatment across platforms. */
.language-control {
  position: relative;
  display: flex;
  min-height: 90px;
  align-items: center;
  padding-inline: 10px;
  border-left: 1px solid rgba(16, 24, 32, .12);
}

.language-toggle {
  display: flex;
  width: 108px;
  min-height: 44px;
  padding: 8px 4px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 2px;
  color: #394650;
  background: transparent;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.3;
}

.language-globe {
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
}

.language-chevron {
  width: 6px;
  height: 6px;
  flex: 0 0 6px;
  margin-left: 2px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform .2s var(--ease);
}

.language-toggle[aria-expanded="true"] .language-chevron {
  transform: translateY(1px) rotate(225deg);
}

.language-toggle:hover {
  color: var(--film-blue);
  background: rgba(24, 79, 120, .05);
}

.language-panel {
  position: absolute;
  z-index: 120;
  top: calc(100% - 8px);
  right: 8px;
  width: 192px;
  padding: 8px;
  border: 1px solid #dce3e7;
  border-radius: 4px;
  color: var(--graphite);
  background: #fff;
  box-shadow: 0 14px 36px rgba(9, 26, 38, .14);
}

.language-option {
  position: relative;
  display: flex;
  width: 100%;
  min-height: 44px;
  padding: 10px 36px 10px 14px;
  align-items: center;
  border: 0;
  border-radius: 2px;
  background: transparent;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
}

.language-option[aria-current="true"] {
  color: var(--film-blue);
  background: #edf4f7;
  font-weight: 600;
}

.language-option[aria-current="true"]::after {
  position: absolute;
  right: 16px;
  width: 5px;
  height: 9px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  content: '';
  transform: translateY(-2px) rotate(45deg);
}

.language-option:hover,
.language-option:focus-visible {
  color: var(--film-blue);
  background: #f1f5f7;
}

.language-toggle:focus-visible,
.language-option:focus-visible {
  outline: 2px solid var(--film-blue);
  outline-offset: -2px;
}

.site-header.is-overlay:not(.is-scrolled) .language-control {
  border-color: rgba(255, 255, 255, .22);
}

.site-header.is-overlay:not(.is-scrolled) .language-toggle {
  color: rgba(255, 255, 255, .92);
}

.site-header.is-overlay:not(.is-scrolled) .language-toggle:hover {
  background: rgba(255, 255, 255, .09);
}

@media (max-width: 920px) {
  .language-control {
    min-height: 78px;
    padding-inline: 8px;
  }

  .language-toggle {
    width: 90px;
    gap: 6px;
  }

  .language-globe {
    display: none;
  }
}

@media (max-width: 640px) {
  .language-control {
    min-height: 72px;
    padding-inline: 5px;
  }

  .language-toggle {
    width: 84px;
  }

  .brand {
    width: min(196px, 55vw);
    max-width: 100%;
  }

  .header-inner,
  html:not([lang="zh-CN"]) .header-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
  }
}

/* University partners: compact factual detail in the company introduction. */
.academic-partners {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.academic-partners .academic-partners-names {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-bottom: 0;
  color: var(--graphite);
  font-weight: 600;
}

/* Keep the atlas preview filled despite the intermediate picture element. */
.application-atlas-entry .split-feature-media {
  position: relative;
  align-self: center;
  min-height: 0;
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

.application-atlas-entry .split-feature-media picture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.application-atlas-entry .split-feature-media img {
  object-position: right center;
}

@media (max-width: 920px) {
  .application-atlas-entry .split-feature-media {
    min-height: 0;
    aspect-ratio: 3 / 2;
  }
}