:root {
  color-scheme: light;
  --color-bg: oklch(1 0 0);
  --color-surface: oklch(0.975 0.004 140);
  --color-ink: oklch(0.185 0.018 145);
  --color-muted: oklch(0.43 0.016 145);
  --color-line: oklch(0.89 0.006 145);
  --color-primary: oklch(0.30 0.096 140);
  --color-primary-dark: oklch(0.18 0.025 145);
  --color-accent: oklch(0.47 0.145 29);
  --color-accent-soft: oklch(0.955 0.025 29);
  --header-height: 72px;
  --page-pad: 48px;
  --content-width: 1280px;
  --focus: oklch(0.62 0.16 250);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body,
button,
select {
  font-family: inherit;
}

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

figure,
p,
h1,
h2,
h3,
dl,
dd {
  margin: 0;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

button,
select,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

::selection {
  background: var(--color-accent-soft);
  color: var(--color-ink);
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 20;
  padding: 10px 16px;
  background: var(--color-ink);
  color: white;
  transform: translateY(-160%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  height: var(--header-height);
  border-bottom: 1px solid var(--color-line);
  background: oklch(1 0 0 / 0.96);
}

.header-inner {
  width: min(100%, calc(var(--content-width) + (var(--page-pad) * 2)));
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--page-pad);
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  width: max-content;
  min-width: 44px;
  min-height: 44px;
  justify-content: center;
  text-decoration: none;
}

.site-brand strong {
  font-size: 20px;
  line-height: 1;
}

.site-brand span {
  color: var(--color-muted);
  font-size: 13px;
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: stretch;
  height: 100%;
}

.site-nav a {
  position: relative;
  min-width: 76px;
  min-height: 44px;
  padding: 0 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 13px;
  bottom: -1px;
  left: 13px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.site-nav a:hover,
.site-nav a[aria-current="location"] {
  color: var(--color-ink);
}

.site-nav a:hover::after,
.site-nav a[aria-current="location"]::after {
  transform: scaleX(1);
}

.header-download {
  min-width: 68px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--color-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: "Bahnschrift", "Arial Narrow", sans-serif;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease;
}

.header-download:hover {
  background: var(--color-ink);
  color: white;
}

.hero {
  position: relative;
  height: min(740px, calc(100svh - 116px));
  min-height: 600px;
  overflow: hidden;
  background: var(--color-primary-dark);
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 48%;
  animation: hero-image-enter 900ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-copy {
  position: absolute;
  bottom: 44px;
  left: max(var(--page-pad), calc((100% - var(--content-width)) / 2 + var(--page-pad)));
  width: min(680px, calc(100% - (var(--page-pad) * 2)));
  padding: 36px 40px 38px;
  background: oklch(0.18 0.025 145 / 0.95);
  color: white;
  animation: hero-copy-enter 700ms 120ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-role {
  margin-bottom: 12px;
  color: oklch(0.86 0.05 140);
  font-size: 14px;
  font-weight: 700;
}

.hero h1 {
  margin-bottom: 10px;
  font-size: 72px;
  line-height: 1;
  letter-spacing: 0;
}

.hero-statement {
  max-width: 19ch;
  font-size: 27px;
  font-weight: 650;
  line-height: 1.45;
  text-wrap: balance;
}

.hero-context {
  margin-top: 16px;
  color: oklch(0.84 0.015 145);
  font-size: 14px;
}

.hero-actions,
.contact-actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 48px;
  padding: 0 19px;
  border: 1px solid transparent;
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.button-light {
  background: white;
  color: var(--color-ink);
}

.button-light:hover {
  background: oklch(0.93 0 0);
}

.button-outline {
  border-color: oklch(1 0 0 / 0.72);
  color: white;
}

.button-outline:hover {
  border-color: white;
  background: oklch(1 0 0 / 0.1);
}

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

.proof-rail-inner {
  width: min(100%, calc(var(--content-width) + (var(--page-pad) * 2)));
  margin: 0 auto;
  padding: 0 var(--page-pad);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.proof-rail-inner > div {
  min-height: 116px;
  padding: 24px 28px;
  border-right: 1px solid var(--color-line);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.proof-rail-inner > div:first-child {
  border-left: 1px solid var(--color-line);
}

.proof-rail strong {
  font-family: "Bahnschrift", "Arial Narrow", sans-serif;
  font-size: 24px;
  line-height: 1.2;
}

.proof-rail span {
  margin-top: 4px;
  color: var(--color-muted);
  font-size: 13px;
}

.section {
  padding: 128px var(--page-pad);
  scroll-margin-top: var(--header-height);
}

.section-inner {
  width: min(100%, var(--content-width));
  margin: 0 auto;
}

.section-heading {
  margin-bottom: 54px;
  display: grid;
  grid-template-columns: minmax(170px, 3fr) minmax(0, 9fr);
  column-gap: 48px;
}

.section-name {
  grid-column: 1;
  grid-row: 1 / span 2;
  padding-top: 9px;
  color: var(--color-accent);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.4;
}

.section-heading h2 {
  grid-column: 2;
  max-width: 18ch;
  font-size: 46px;
  line-height: 1.2;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-heading > p:not(.section-name) {
  grid-column: 2;
  max-width: 66ch;
  margin-top: 18px;
  color: var(--color-muted);
  font-size: 17px;
  line-height: 1.85;
  text-wrap: pretty;
}

.section-heading-wide h2 {
  max-width: 22ch;
}

.scope-line {
  margin-bottom: 28px;
  border-top: 1px solid var(--color-ink);
  border-bottom: 1px solid var(--color-line);
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}

.scope-line span {
  min-height: 54px;
  padding: 0 10px;
  border-right: 1px solid var(--color-line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.scope-line span:last-child {
  border-right: 0;
}

.video-figure {
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.video-figure video,
.video-figure > img {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: oklch(0.08 0 0);
  object-fit: contain;
}

.video-figure figcaption {
  min-height: 54px;
  padding: 13px 0;
  border-bottom: 1px solid var(--color-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--color-muted);
  font-size: 13px;
}

.video-figure figcaption span:first-child {
  color: var(--color-ink);
  font-weight: 700;
}

.film-sequence {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.film-sequence figure {
  min-width: 0;
  border-bottom: 1px solid var(--color-line);
}

.film-sequence img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.film-sequence figcaption {
  min-height: 48px;
  padding: 8px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
}

.film-sequence time {
  color: var(--color-accent);
  font-family: "Bahnschrift", "Arial Narrow", sans-serif;
  font-weight: 800;
}

.film-sequence span {
  color: var(--color-muted);
}

.industrial-gallery {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.industrial-gallery figure {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background: var(--color-surface);
}

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

.industrial-gallery figcaption,
.changan-layout figcaption,
.application-grid figcaption,
.documentary-case figure > figcaption,
.lvchun-images figcaption {
  position: absolute;
  right: 0;
  bottom: 0;
  max-width: calc(100% - 24px);
  padding: 8px 12px;
  background: oklch(0.17 0.015 145 / 0.92);
  color: white;
  font-size: 12px;
  line-height: 1.5;
}

.industrial-gallery-main {
  grid-column: 1 / span 7;
  aspect-ratio: 1.42;
}

.industrial-gallery-detail {
  grid-column: 8 / span 5;
  aspect-ratio: 1.02;
}

.industrial-gallery-heat {
  grid-column: 1 / span 4;
  aspect-ratio: 0.9;
}

.industrial-gallery-scale {
  grid-column: 5 / span 8;
  aspect-ratio: 1.84;
}

.section-library {
  background: var(--color-surface);
}

.library-controls {
  padding: 22px 0;
  border-top: 1px solid var(--color-ink);
  border-bottom: 1px solid var(--color-line);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr)) 96px;
  gap: 18px;
  align-items: end;
}

.library-controls label {
  display: flex;
  flex-direction: column;
  gap: 7px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.library-controls select {
  width: 100%;
  min-height: 48px;
  padding: 0 40px 0 13px;
  border: 1px solid var(--color-line);
  border-radius: 2px;
  background: white;
  color: var(--color-ink);
  font-size: 15px;
  cursor: pointer;
}

.filter-reset {
  min-height: 48px;
  padding: 0 13px;
  border: 1px solid var(--color-ink);
  border-radius: 2px;
  background: transparent;
  color: var(--color-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.filter-reset:hover {
  background: var(--color-ink);
  color: white;
}

.library-status {
  min-height: 54px;
  padding: 13px 0;
  border-bottom: 1px solid var(--color-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--color-muted);
  font-size: 13px;
}

.library-status span:first-child {
  color: var(--color-primary);
  font-weight: 800;
}

.media-index {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px 18px;
}

.media-item {
  min-width: 0;
  border-top: 1px solid var(--color-line);
  background: white;
}

.media-item[hidden] {
  display: none;
}

.media-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--color-line);
}

.media-item figcaption {
  min-height: 74px;
  padding: 12px 13px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.media-item code {
  overflow-wrap: anywhere;
  color: var(--color-muted);
  font-family: "Bahnschrift", "Arial Narrow", sans-serif;
  font-size: 11px;
}

.media-item figcaption span {
  font-size: 14px;
  font-weight: 700;
}

.documentary-case {
  border-top: 1px solid var(--color-ink);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 38px;
}

.documentary-case + .documentary-case {
  margin-top: 92px;
}

.campus-case > figure {
  position: relative;
  grid-column: 1 / span 7;
  margin-top: 28px;
  min-width: 0;
}

.campus-case > figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.documentary-copy {
  grid-column: 8 / span 5;
  padding-top: 28px;
}

.documentary-copy h3,
.application-heading h3,
.report-context h3 {
  font-size: 28px;
  line-height: 1.3;
  text-wrap: balance;
}

.case-lead {
  margin-top: 16px;
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.85;
}

.fact-list {
  margin-top: 26px;
  border-top: 1px solid var(--color-line);
}

.fact-list > div {
  padding: 11px 0;
  border-bottom: 1px solid var(--color-line);
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 18px;
}

.fact-list dt {
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.fact-list dd {
  font-size: 14px;
  font-weight: 650;
}

.source-row {
  grid-column: 1 / -1;
  min-height: 92px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.source-row > div {
  min-width: 0;
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 4px 22px;
  align-items: baseline;
}

.source-row span,
.source-row small {
  color: var(--color-muted);
  font-size: 12px;
}

.source-row strong {
  font-size: 14px;
  line-height: 1.6;
}

.source-row small {
  grid-column: 2;
}

.source-row a {
  min-width: max-content;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 800;
}

.lvchun-images {
  grid-column: 1 / span 7;
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.lvchun-images figure {
  position: relative;
  min-width: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.lvchun-images .lvchun-wide {
  grid-column: 1 / -1;
  aspect-ratio: 2.15;
}

.lvchun-images img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.source-list {
  grid-column: 1 / -1;
}

.section-cross-media {
  border-top: 1px solid var(--color-line);
}

.changan-layout {
  border-top: 1px solid var(--color-ink);
  padding-top: 28px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
}

.changan-layout figure,
.application-grid figure {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background: var(--color-surface);
}

.changan-layout img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.changan-giftbox {
  grid-column: 1 / span 8;
  aspect-ratio: 1.48;
}

.changan-wearables {
  grid-column: 9 / span 4;
  grid-row: 1;
  aspect-ratio: auto;
}

.changan-linework {
  grid-column: 1 / span 8;
  aspect-ratio: 1.56;
}

.changan-scope {
  grid-column: 9 / span 4;
  grid-row: 2;
  min-width: 0;
  padding: 30px 28px;
  border-top: 1px solid var(--color-ink);
  border-bottom: 1px solid var(--color-line);
  align-self: stretch;
}

.changan-scope h3 {
  font-size: 23px;
  line-height: 1.3;
}

.changan-scope ul {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.changan-scope li {
  padding: 9px 0;
  border-bottom: 1px solid var(--color-line);
  font-size: 14px;
  font-weight: 650;
}

.changan-scope p {
  margin-top: 18px;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.7;
}

.application-heading {
  margin-top: 78px;
  padding-top: 24px;
  border-top: 1px solid var(--color-ink);
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 36px;
}

.application-heading p {
  color: var(--color-muted);
  line-height: 1.8;
}

.application-grid {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.application-grid figure {
  aspect-ratio: 3 / 2;
}

.application-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.report-context {
  margin-top: 78px;
  padding-top: 24px;
  border-top: 1px solid var(--color-ink);
}

.report-context h3 {
  margin-bottom: 12px;
}

.section-contact {
  padding-top: 96px;
  padding-bottom: 96px;
  background: var(--color-primary);
  color: white;
}

.contact-inner {
  width: min(100%, var(--content-width));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 80px;
  align-items: end;
}

.contact-copy .section-name {
  display: block;
  padding: 0;
  color: oklch(0.87 0.05 140);
}

.contact-copy h2 {
  max-width: 19ch;
  margin-top: 14px;
  font-size: 45px;
  line-height: 1.25;
  text-wrap: balance;
}

.contact-copy > p:not(.section-name) {
  max-width: 62ch;
  margin-top: 18px;
  color: oklch(0.88 0.015 140);
}

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

.button-primary:hover {
  background: oklch(0.93 0 0);
}

.button-secondary {
  border-color: oklch(1 0 0 / 0.72);
  color: white;
}

.button-secondary:hover {
  border-color: white;
  background: oklch(1 0 0 / 0.1);
}

.text-link {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  color: white;
  font-size: 14px;
  font-weight: 700;
}

.contact-photo {
  width: 280px;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: white;
}

.contact-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.site-footer {
  min-height: 96px;
  padding: 22px var(--page-pad);
  background: var(--color-primary-dark);
  color: oklch(0.88 0.015 145);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 13px;
}

.site-footer > div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.site-footer a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-weight: 700;
}

@keyframes hero-image-enter {
  from {
    opacity: 0.75;
    transform: scale(1.025);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes hero-copy-enter {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1120px) {
  :root {
    --page-pad: 32px;
  }

  .site-nav a {
    min-width: 68px;
    padding-right: 10px;
    padding-left: 10px;
  }

  .hero-copy {
    width: 610px;
  }

  .hero h1 {
    font-size: 62px;
  }

  .hero-statement {
    font-size: 24px;
  }

  .section-heading h2 {
    font-size: 40px;
  }

  .library-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr)) 96px;
  }

  .filter-reset {
    grid-column: 3;
    grid-row: 2;
  }
}

@media (max-width: 860px) {
  :root {
    --header-height: 64px;
    --page-pad: 24px;
  }

  .header-inner {
    gap: 18px;
  }

  .site-brand span,
  .site-nav a:nth-child(3),
  .site-nav a:nth-child(4) {
    display: none;
  }

  .site-nav a {
    min-width: 62px;
    font-size: 13px;
  }

  .hero {
    height: min(680px, calc(100svh - 104px));
    min-height: 560px;
  }

  .hero-image {
    object-position: 48% center;
  }

  .hero-copy {
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 28px var(--page-pad) 30px;
  }

  .hero h1 {
    font-size: 52px;
  }

  .hero-statement {
    max-width: 22ch;
    font-size: 22px;
  }

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

  .proof-rail-inner > div:nth-child(2) {
    border-right: 0;
  }

  .proof-rail-inner > div:nth-child(3),
  .proof-rail-inner > div:nth-child(4) {
    border-top: 1px solid var(--color-line);
  }

  .proof-rail-inner > div:nth-child(3) {
    border-left: 1px solid var(--color-line);
  }

  .section {
    padding-top: 92px;
    padding-bottom: 92px;
  }

  .section-heading {
    margin-bottom: 42px;
    grid-template-columns: 1fr;
  }

  .section-name,
  .section-heading h2,
  .section-heading > p:not(.section-name) {
    grid-column: 1;
  }

  .section-name {
    grid-row: auto;
    padding-top: 0;
    margin-bottom: 12px;
  }

  .section-heading h2 {
    font-size: 36px;
  }

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

  .scope-line span:nth-child(-n + 3) {
    border-bottom: 1px solid var(--color-line);
  }

  .scope-line span:nth-child(3) {
    border-right: 0;
  }

  .video-figure figcaption {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .industrial-gallery-main,
  .industrial-gallery-detail,
  .industrial-gallery-heat,
  .industrial-gallery-scale {
    grid-column: span 6;
    aspect-ratio: 4 / 3;
  }

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

  .documentary-case {
    column-gap: 24px;
  }

  .campus-case > figure,
  .lvchun-images {
    grid-column: 1 / span 7;
  }

  .documentary-copy {
    grid-column: 8 / span 5;
  }

  .source-row > div {
    grid-template-columns: 1fr;
  }

  .source-row small {
    grid-column: 1;
  }

  .changan-giftbox {
    grid-column: 1 / span 7;
  }

  .changan-wearables {
    grid-column: 8 / span 5;
  }

  .changan-linework {
    grid-column: 1 / span 7;
  }

  .changan-scope {
    grid-column: 8 / span 5;
  }

  .application-heading {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .contact-inner {
    grid-template-columns: 1fr 220px;
    gap: 44px;
  }

  .contact-copy h2 {
    font-size: 36px;
  }

  .contact-photo {
    width: 220px;
  }
}

@media (max-width: 680px) {
  :root {
    --page-pad: 18px;
  }

  .header-inner {
    gap: 12px;
  }

  .site-brand strong {
    font-size: 18px;
  }

  .site-nav {
    overflow-x: auto;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav a:nth-child(2) {
    display: none;
  }

  .site-nav a {
    min-width: 58px;
  }

  .header-download {
    min-width: 48px;
    padding: 0 11px;
  }

  .header-download span:last-child {
    display: none;
  }

  .hero {
    height: min(650px, calc(100svh - 92px));
    min-height: 555px;
  }

  .hero-image {
    object-position: 50% center;
  }

  .hero-copy {
    padding-top: 24px;
    padding-bottom: 25px;
  }

  .hero-role {
    margin-bottom: 7px;
    font-size: 12px;
  }

  .hero h1 {
    margin-bottom: 8px;
    font-size: 44px;
  }

  .hero-statement {
    font-size: 19px;
    line-height: 1.4;
  }

  .hero-context {
    margin-top: 11px;
    font-size: 12px;
    line-height: 1.65;
  }

  .hero-actions {
    margin-top: 18px;
  }

  .hero-actions .button {
    min-height: 44px;
    padding: 0 13px;
    font-size: 13px;
  }

  .proof-rail-inner {
    padding: 0;
  }

  .proof-rail-inner > div {
    min-height: 92px;
    padding: 16px 18px;
  }

  .proof-rail strong {
    font-size: 19px;
  }

  .section {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .section-heading h2 {
    font-size: 31px;
  }

  .section-heading > p:not(.section-name) {
    margin-top: 13px;
    font-size: 15px;
  }

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

  .scope-line span:nth-child(2),
  .scope-line span:nth-child(4) {
    border-right: 0;
  }

  .scope-line span:nth-child(4) {
    border-bottom: 1px solid var(--color-line);
  }

  .scope-line span:nth-child(3) {
    border-right: 1px solid var(--color-line);
  }

  .industrial-gallery {
    gap: 10px;
  }

  .industrial-gallery-main,
  .industrial-gallery-detail,
  .industrial-gallery-heat,
  .industrial-gallery-scale {
    grid-column: 1 / -1;
  }

  .industrial-gallery-heat {
    aspect-ratio: 4 / 5;
  }

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

  .library-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 10px;
  }

  .filter-reset {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .library-status {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }

  .media-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 10px;
  }

  .media-item figcaption {
    min-height: 78px;
    padding: 9px 10px 11px;
  }

  .media-item code {
    font-size: 9.5px;
  }

  .media-item figcaption span {
    font-size: 12px;
  }

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

  .campus-case > figure,
  .lvchun-images,
  .documentary-copy,
  .source-row,
  .source-list {
    grid-column: 1;
  }

  .documentary-copy {
    padding-top: 24px;
  }

  .documentary-copy h3,
  .application-heading h3,
  .report-context h3 {
    font-size: 24px;
  }

  .source-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .source-row > div {
    width: 100%;
  }

  .lvchun-images {
    grid-template-columns: 1fr;
  }

  .lvchun-images .lvchun-wide {
    grid-column: 1;
    aspect-ratio: 4 / 3;
  }

  .documentary-case + .documentary-case {
    margin-top: 68px;
  }

  .changan-layout {
    grid-template-columns: 1fr;
  }

  .changan-giftbox,
  .changan-wearables,
  .changan-linework,
  .changan-scope {
    grid-column: 1;
    grid-row: auto;
  }

  .changan-giftbox {
    aspect-ratio: 1.35;
  }

  .changan-wearables {
    aspect-ratio: 0.72;
  }

  .changan-scope {
    padding: 24px 20px;
  }

  .application-heading,
  .report-context {
    margin-top: 58px;
  }

  .application-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .contact-inner {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .contact-copy h2 {
    font-size: 31px;
  }

  .contact-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .contact-actions .button,
  .contact-actions .text-link {
    width: 100%;
  }

  .contact-photo {
    width: min(220px, 70vw);
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}