:root {
  --black: #0f1215;
  --black-soft: #171b20;
  --white: #fff;
  --paper: #f4f4f2;
  --gray-100: #ececeb;
  --gray-300: #c9c9c5;
  --gray-500: #777873;
  --orange: #ff5a2a;
  --line: rgba(15, 18, 21, 0.2);
  --max-width: 1440px;
  --gutter: clamp(1.25rem, 4vw, 4.5rem);
  --display: "Archivo Black", Arial Black, sans-serif;
  --body: Inter, Arial, sans-serif;
  --zh-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --zh-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--black);
  background: var(--paper);
  font-family: var(--body);
  text-rendering: optimizeLegibility;
}
.scroll-progress{position:fixed;inset:0 auto auto 0;z-index:100;width:0;height:3px;background:var(--orange);pointer-events:none}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  top: 0;
  left: 1rem;
  z-index: 100;
  transform: translateY(-120%);
  padding: 0.75rem 1rem;
  background: var(--orange);
  font-weight: 700;
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  min-height: 82px;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  align-items: center;
  column-gap: clamp(1rem, 2.2vw, 2.5rem);
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.18);
  transition: background .25s ease, min-height .25s ease, color .25s ease;
}
.site-header.is-scrolled {
  min-height: 66px;
  color: var(--black);
  background: rgba(244,244,242,.94);
  backdrop-filter: blur(14px);
  border-color: var(--line);
}
.brand {
  width: min-content;
  font-family: var(--display);
  font-size: .95rem;
  line-height: .88;
  letter-spacing: -.04em;
}
.brand span { display: block; }
.brand::after {
  content: "";
  display: block;
  width: 26px;
  height: 3px;
  margin-top: 8px;
  background: var(--orange);
}
.site-nav {
  display: flex;
  gap: clamp(1.25rem, 2.4vw, 2.75rem);
  text-transform: uppercase;
  font-size: .73rem;
  font-weight: 600;
  letter-spacing: .06em;
}
.site-nav a, .site-footer a { position: relative; }
.site-nav a::after, .site-footer div a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -6px;
  height: 2px;
  background: var(--orange);
  transition: right .2s ease;
}
.site-nav a:hover::after, .site-nav a:focus-visible::after,
.site-footer div a:hover::after { right: 0; }
.header-cta {
  padding: .75rem 1.15rem;
  border: 1px solid currentColor;
  text-transform: uppercase;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
}
.language-switch {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .68rem;
  font-weight: 700;
}
.language-switch button {
  padding: .35rem .15rem;
  border: 0;
  color: inherit;
  background: transparent;
  cursor: pointer;
  opacity: .48;
}
.language-switch button[aria-pressed="true"] { color: var(--orange); opacity: 1; }
.language-switch span { opacity: .35; }
.header-cta:hover { color: var(--black); background: var(--orange); border-color: var(--orange); }
.menu-toggle { display: none; }

.section-dark { background: var(--black); color: var(--white); }
.section-light { background: var(--paper); color: var(--black); }
.hero {
  min-height: 100svh;
  padding: 9rem var(--gutter) 4rem;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(420px, .85fr);
  align-items: end;
  gap: clamp(3rem, 7vw, 8rem);
  position: relative;
}
.hero-copy { align-self: center; padding-top: 3rem; }
.hero h1, .section-heading h2, .territory-intro h2, .work h2,
.partnerships h2, .brands h2, .contact h2 {
  margin: 0;
  font-family: var(--display);
  text-transform: uppercase;
  letter-spacing: -.055em;
  line-height: .94;
}
.hero h1 { max-width: 900px; font-size: clamp(3.4rem, 6.5vw, 7.6rem); }
.hero-copy > p {
  max-width: 660px;
  margin: 2rem 0;
  color: #c6c9cb;
  font-size: clamp(1rem, 1.4vw, 1.35rem);
  line-height: 1.55;
}
.hero-actions { display: flex; gap: .75rem; flex-wrap: wrap; }
.button {
  min-height: 48px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: .85rem 1.2rem;
  border: 1px solid transparent;
  background: none;
  text-transform: uppercase;
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .06em;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, color .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--black); background: var(--orange); }
.button-ghost { color: var(--white); border-color: rgba(255,255,255,.55); }
.button-ghost:hover { color: var(--black); background: var(--white); }
.button-dark { color: var(--white); background: var(--black); }
.media-slot {
  position: relative;
  min-height: 280px;
  overflow: hidden;
  color: var(--gray-500);
  background:
    linear-gradient(135deg, transparent 49.75%, rgba(255,90,42,.55) 50%, transparent 50.25%),
    linear-gradient(45deg, transparent 49.75%, rgba(255,90,42,.55) 50%, transparent 50.25%),
    var(--gray-100);
  background-size: 100% 100%;
}
.media-slot::before {
  content: attr(data-photo);
  position: absolute;
  top: 1rem;
  left: 1rem;
  color: var(--orange);
  font-size: .72rem;
  font-weight: 700;
}
.media-slot span {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.media-slot>img{width:100%;height:100%;display:block;object-fit:cover}
.media-slot:has(>img) span{padding:.45rem .6rem;width:max-content;max-width:calc(100% - 2rem);color:var(--white);background:rgba(15,18,21,.72)}
.media-slot:has(>img)::before{z-index:1;text-shadow:0 1px 8px rgba(0,0,0,.55)}
.section-dark .media-slot { background-color: #252a30; color: #bcc1c5; }
.hero-media { height: min(70vh, 720px); min-height: 480px; }
.hero-index {
  position: absolute;
  left: var(--gutter);
  bottom: 1.4rem;
  color: #6e7479;
  font-size: .72rem;
}

.availability-strip {
  min-height: 58px;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
  gap: 1rem;
  color: var(--black);
  background: var(--orange);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.availability-strip span:not(:first-child) {
  padding-left: 1rem;
  border-left: 1px solid rgba(15,18,21,.35);
}

.proof, .brand-value, .expertise, .territories, .work, .partnerships, .process, .brands, .socials, .contact {
  padding: clamp(5rem, 9vw, 9rem) var(--gutter);
}
.section-heading h2, .territory-intro h2, .work h2,
.partnerships h2, .brand-value h2, .process h2, .brands h2, .contact h2 {
  font-size: clamp(2.8rem, 5.3vw, 6.2rem);
}
.section-heading > p, .work-header p {
  margin: 1rem 0 0;
  color: var(--gray-500);
  font-size: clamp(1rem, 1.4vw, 1.25rem);
}
.metrics {
  margin-top: clamp(3rem, 7vw, 6rem);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.metric {
  min-height: 260px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--line);
}
.metric:last-child { border-right: 0; }
.metric-primary { color: var(--white); background: var(--black); }
.metric strong { font-family: var(--display); font-size: clamp(2.6rem, 5vw, 5.2rem); }
.metric span { color: var(--gray-500); font-size: .78rem; text-transform: uppercase; }
.metric-primary span { color: #b9bec2; }
.proof-line {
  margin: 2.25rem 0 0;
  font-family: var(--display);
  font-size: clamp(1.2rem, 2.4vw, 2.5rem);
  text-transform: uppercase;
}
.proof-line i { color: var(--orange); font-style: normal; }

.brand-value {
  padding-top: 1rem;
  display: grid;
  grid-template-columns: .72fr 1.28fr;
  gap: clamp(3rem, 9vw, 9rem);
}
.brand-value h2, .process h2 {
  margin: 0;
  font-family: var(--display);
  line-height: .94;
  letter-spacing: -.055em;
  text-transform: uppercase;
}
.brand-value-intro p, .process-heading p {
  max-width: 520px;
  color: var(--gray-500);
  line-height: 1.65;
}
.value-rail { border-top: 1px solid var(--line); }
.value-item {
  display: grid;
  grid-template-columns: 3rem minmax(130px,.45fr) 1fr;
  gap: 1.25rem;
  align-items: baseline;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
}
.value-item > span { color: var(--orange); font-size: .7rem; font-weight: 700; }
.value-item h3 { margin: 0; font-size: 1.05rem; text-transform: uppercase; }
.value-item p { margin: 0; color: var(--gray-500); line-height: 1.55; }

.expertise .section-heading p { color: #aeb3b7; }
.expertise-grid {
  margin-top: clamp(4rem, 8vw, 7rem);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}
.expertise-item { padding-top: 1rem; border-top: 1px solid #3b4146; }
.section-number { color: var(--orange); font-size: .72rem; font-weight: 700; }
.expertise-item h3 {
  margin: 1rem 0 1.75rem;
  font-family: var(--display);
  font-size: clamp(1.5rem, 2.4vw, 2.7rem);
  line-height: 1;
  text-transform: uppercase;
}
.expertise-item ul { margin: 0; padding: 0; list-style: none; color: #c6c9cb; line-height: 1.8; }
.credentials { margin: 5rem 0 0; padding-top: 1.25rem; border-top: 1px solid #3b4146; color: #adb2b6; text-transform: uppercase; font-size: .78rem; }

.territories {
  display: grid;
  grid-template-columns: 1fr .7fr .7fr;
  gap: clamp(2rem, 5vw, 5.5rem);
  align-items: start;
}
.territory-intro { position: sticky; top: 8rem; }
.territory-intro p { max-width: 540px; margin: 2rem 0 3rem; color: var(--gray-500); line-height: 1.6; }
.story-system { margin: 0; padding: 0; list-style: none; counter-reset: step; border-top: 1px solid var(--black); }
.story-system li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 2rem 1fr;
  padding: .85rem 0;
  border-bottom: 1px solid var(--line);
  text-transform: uppercase;
  font-size: .8rem;
  font-weight: 600;
}
.story-system li::before { content: "0" counter(step); color: var(--orange); font-size: .68rem; }
.media-wide { min-height: 420px; }
.media-tall { min-height: 590px; }
.territory-offset { margin-top: 10rem; }
.territory-caption { display: grid; grid-template-columns: 2rem 1fr; gap: .8rem; margin-top: 1rem; }
.territory-caption > span { color: var(--orange); font-size: .72rem; font-weight: 700; }
.territory-caption h3 { margin: 0; font-size: 1.2rem; text-transform: uppercase; }
.territory-caption p { grid-column: 2; margin: .35rem 0 0; color: var(--gray-500); line-height: 1.5; }

.work-header { display: flex; justify-content: space-between; align-items: end; gap: 2rem; }
.work-header p { color: #aeb3b7; }
.work-filters { display: flex; gap: .35rem; flex-wrap: wrap; justify-content: flex-end; }
.filter-button {
  padding: .65rem .85rem;
  border: 1px solid #454b50;
  color: #b7bcc0;
  background: transparent;
  text-transform: uppercase;
  font-size: .68rem;
  cursor: pointer;
}
.filter-button:hover, .filter-button.is-active { color: var(--black); background: var(--orange); border-color: var(--orange); }
.projects { margin-top: 5rem; }
.project {
  min-height: 500px;
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: clamp(2rem, 6vw, 7rem);
  align-items: center;
  padding: 4rem 0;
  border-top: 1px solid #3c4146;
  transition: opacity .25s ease, transform .25s ease;
}
.project[hidden] { display: none; }
.project-reverse .project-media { order: 2; }
.project-media { min-height: 460px; }
.project-media.has-cover{color:transparent}
.project-media.has-cover::before{color:var(--white);text-shadow:0 1px 8px rgba(0,0,0,.45)}
.project-cover-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.project-copy > span { color: var(--orange); font-size: .72rem; font-weight: 700; text-transform: uppercase; }
.project-copy h3 { margin: 1rem 0; font-family: var(--display); font-size: clamp(2.3rem, 4.5vw, 5rem); text-transform: uppercase; line-height: .95; }
.project-copy p { color: #b9bec2; line-height: 1.6; }
.project-copy strong { display: block; margin-top: 2rem; color: var(--orange); font-size: .78rem; text-transform: uppercase; }
.case-link{margin-top:2rem;padding-bottom:.4rem;display:inline-flex;gap:1rem;border-bottom:1px solid #5a6065;text-transform:uppercase;font-size:.72rem;font-weight:700;letter-spacing:.05em;transition:color .2s,border-color .2s,gap .2s}
.case-link:hover{gap:1.5rem;color:var(--orange);border-color:var(--orange)}

.service-list { margin-top: 5rem; }
.service {
  display: grid;
  grid-template-columns: 5rem minmax(220px, .7fr) 1.3fr;
  align-items: baseline;
  gap: 2rem;
  padding: 1.6rem 0;
  border-top: 1px solid var(--line);
}
.service:last-child { border-bottom: 1px solid var(--line); }
.service > span { color: var(--orange); font-size: .72rem; font-weight: 700; }
.service h3 { margin: 0; font-size: clamp(1.35rem, 2.3vw, 2.4rem); text-transform: uppercase; }
.service p { margin: 0; color: var(--gray-500); line-height: 1.55; }

.process { border-top: 1px solid #30353a; }
.process-heading {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 3rem;
  align-items: end;
}
.process-heading p { color: #aeb3b7; }
.process-grid {
  margin: 5rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
  border-top: 1px solid #3c4146;
  border-bottom: 1px solid #3c4146;
}
.process-grid li {
  min-height: 260px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  border-right: 1px solid #3c4146;
}
.process-grid li:last-child { border-right: 0; }
.process-grid span { color: var(--orange); font-size: .7rem; font-weight: 700; }
.process-grid strong {
  margin-top: auto;
  font-family: var(--display);
  font-size: clamp(1.5rem, 2.4vw, 2.5rem);
  text-transform: uppercase;
}
.process-grid p { margin: .8rem 0 0; color: #aeb3b7; line-height: 1.55; }

.brands { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(3rem, 10vw, 10rem); padding-top: 3rem; }
.brands-title h2 { font-size: clamp(2.8rem, 5vw, 5.6rem); }
.brands-title p { color: var(--gray-500); line-height: 1.6; }
.brand-groups p { display: grid; grid-template-columns: 7rem 1fr; margin: 0; padding: 1.4rem 0; border-top: 1px solid var(--line); line-height: 1.5; }
.brand-groups p:last-child { border-bottom: 1px solid var(--line); }
.brand-groups span { color: var(--orange); font-size: .72rem; font-weight: 700; text-transform: uppercase; }

.socials {
  display: grid;
  grid-template-columns: .7fr 1.3fr;
  gap: clamp(3rem, 10vw, 10rem);
  border-top: 1px solid #30353a;
}
.socials h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.8rem, 5vw, 5.8rem);
  line-height: .94;
  letter-spacing: -.055em;
  text-transform: uppercase;
}
.socials-heading p { max-width: 480px; color: #aeb3b7; line-height: 1.6; }
.social-grid { border-top: 1px solid #3c4146; }
.social-link {
  min-height: 82px;
  padding: 1.2rem 0;
  display: grid;
  grid-template-columns: 3rem 1fr auto;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid #3c4146;
  transition: padding .2s ease, color .2s ease, background .2s ease;
}
a.social-link:hover { padding-inline: 1rem; color: var(--black); background: var(--orange); }
.social-link span { color: var(--orange); font-size: .7rem; font-weight: 700; }
a.social-link:hover span { color: var(--black); }
.social-link strong { font-size: clamp(1.1rem, 1.8vw, 1.65rem); text-transform: uppercase; }
.social-link em { color: #90969b; font-size: .7rem; font-style: normal; text-transform: uppercase; }
a.social-link:hover em { color: var(--black); }
.social-link-pending { color: #676d72; }

.contact { display: grid; grid-template-columns: 1fr .8fr; gap: clamp(3rem, 10vw, 10rem); color: var(--black); background: var(--orange); }
.contact-copy p { max-width: 520px; line-height: 1.6; }
.contact-form { align-self: end; display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.contact-form label { display: grid; gap: .55rem; }
.contact-form label span { font-size: .72rem; font-weight: 700; text-transform: uppercase; }
.contact-form input, .contact-form textarea {
  width: 100%;
  border: 0;
  border-bottom: 2px solid var(--black);
  border-radius: 0;
  padding: .8rem 0;
  color: var(--black);
  background: transparent;
  resize: vertical;
}
.form-wide { grid-column: 1 / -1; }
.form-status { min-height: 1.3rem; margin: 0; font-size: .85rem; }

.site-footer {
  min-height: 180px;
  padding: 3rem var(--gutter);
  display: grid;
  grid-template-columns: 1fr 1fr auto 1fr;
  align-items: end;
  gap: 2rem;
  color: var(--white);
  background: var(--black);
  font-size: .78rem;
}
.footer-brand { font-size: 1rem; }
.site-footer div { display: flex; gap: 1.5rem; }
.site-footer > p:last-child { text-align: right; }
.site-footer .admin-entry{grid-column:1/-1;color:#656c72;font-size:.65rem;text-transform:uppercase}

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.media-slot{transition:transform .5s cubic-bezier(.2,.7,.2,1),filter .5s ease}
.project:hover .project-media{transform:scale(.985);filter:contrast(1.05)}

html[lang="zh-CN"] body {
  font-family: var(--zh-body);
  font-weight: 400;
  line-break: strict;
  text-autospace: normal;
}
html[lang="zh-CN"] .brand,
html[lang="zh-CN"] .hero h1,
html[lang="zh-CN"] .section-heading h2,
html[lang="zh-CN"] .territory-intro h2,
html[lang="zh-CN"] .work h2,
html[lang="zh-CN"] .partnerships h2,
html[lang="zh-CN"] .brand-value h2,
html[lang="zh-CN"] .process h2,
html[lang="zh-CN"] .brands h2,
html[lang="zh-CN"] .socials h2,
html[lang="zh-CN"] .contact h2,
html[lang="zh-CN"] .metric strong,
html[lang="zh-CN"] .proof-line,
html[lang="zh-CN"] .expertise-item h3,
html[lang="zh-CN"] .project-copy h3,
html[lang="zh-CN"] .process-grid strong {
  font-family: var(--zh-display);
  font-weight: 700;
  letter-spacing: -.045em;
}
html[lang="zh-CN"] .hero h1 {
  max-width: 820px;
  font-size: clamp(3.25rem, 6vw, 7rem);
  line-height: 1.07;
}
html[lang="zh-CN"] .section-heading h2,
html[lang="zh-CN"] .territory-intro h2,
html[lang="zh-CN"] .work h2,
html[lang="zh-CN"] .partnerships h2,
html[lang="zh-CN"] .brand-value h2,
html[lang="zh-CN"] .process h2,
html[lang="zh-CN"] .brands h2,
html[lang="zh-CN"] .socials h2,
html[lang="zh-CN"] .contact h2 {
  font-size: clamp(2.65rem, 4.8vw, 5.65rem);
  line-height: 1.08;
  text-wrap: balance;
}
html[lang="zh-CN"] .hero-copy > p,
html[lang="zh-CN"] .section-heading > p,
html[lang="zh-CN"] .brand-value-intro p,
html[lang="zh-CN"] .territory-intro p,
html[lang="zh-CN"] .work-header p,
html[lang="zh-CN"] .process-heading p,
html[lang="zh-CN"] .brands-title p,
html[lang="zh-CN"] .socials-heading p,
html[lang="zh-CN"] .contact-copy p {
  line-height: 1.8;
  letter-spacing: .012em;
}
html[lang="zh-CN"] .site-nav,
html[lang="zh-CN"] .header-cta,
html[lang="zh-CN"] .button,
html[lang="zh-CN"] .availability-strip,
html[lang="zh-CN"] .metric span,
html[lang="zh-CN"] .credentials,
html[lang="zh-CN"] .filter-button,
html[lang="zh-CN"] .social-link em {
  letter-spacing: .035em;
}
html[lang="zh-CN"] .proof-line {
  font-size: clamp(1.25rem, 2.15vw, 2.25rem);
  line-height: 1.35;
}
html[lang="zh-CN"] .expertise-item h3,
html[lang="zh-CN"] .project-copy h3,
html[lang="zh-CN"] .service h3,
html[lang="zh-CN"] .value-item h3 {
  letter-spacing: -.025em;
  line-height: 1.15;
}
html[lang="zh-CN"] .expertise-item ul,
html[lang="zh-CN"] .service p,
html[lang="zh-CN"] .value-item p,
html[lang="zh-CN"] .project-copy p,
html[lang="zh-CN"] .process-grid p,
html[lang="zh-CN"] .territory-caption p {
  line-height: 1.75;
}
html[lang="zh-CN"] .story-system li {
  padding-block: 1rem;
  letter-spacing: .025em;
}
html[lang="zh-CN"] .service {
  padding-block: 1.85rem;
}

@media (max-width: 980px) {
  .site-header { grid-template-columns: 1fr auto auto; }
  .header-cta { display: none; }
  .menu-toggle {
    justify-self: end;
    width: 42px;
    height: 42px;
    display: grid;
    place-content: center;
    gap: 7px;
    border: 1px solid currentColor;
    background: transparent;
  }
  .menu-toggle span:not(.sr-only) { width: 19px; height: 2px; display: block; background: currentColor; }
  .site-nav {
    position: absolute;
    inset: 100% 0 auto;
    display: none;
    padding: 1.5rem var(--gutter) 2rem;
    flex-direction: column;
    background: var(--paper);
    color: var(--black);
    border-bottom: 1px solid var(--line);
  }
  .site-nav.is-open { display: flex; }
  .hero { grid-template-columns: 1fr; align-items: start; }
  .hero-media { min-height: 420px; height: 52vh; }
  .availability-strip { grid-template-columns: 1fr 1fr; padding-block: 1rem; }
  .availability-strip span:nth-child(3) { padding-left: 0; border-left: 0; }
  .metrics { grid-template-columns: 1fr 1fr; }
  .metric:nth-child(2) { border-right: 0; }
  .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .expertise-grid { grid-template-columns: 1fr; }
  .territories { grid-template-columns: 1fr 1fr; }
  .territory-intro { grid-column: 1 / -1; position: static; }
  .territory-offset { margin-top: 5rem; }
  .project, .project-reverse { grid-template-columns: 1fr; }
  .project-reverse .project-media { order: 0; }
  .brand-value, .process-heading, .brands, .socials, .contact { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .process-grid li:nth-child(2) { border-right: 0; }
  .process-grid li:nth-child(-n+2) { border-bottom: 1px solid #3c4146; }
  .site-footer { grid-template-columns: 1fr 1fr; }
  .site-footer > p:last-child { text-align: left; }
}

@media (max-width: 640px) {
  .hero { padding-top: 7rem; }
  .hero h1 { font-size: clamp(3rem, 16vw, 5rem); }
  .hero-media { min-height: 360px; }
  .availability-strip { grid-template-columns: 1fr; gap: .75rem; }
  .availability-strip span:not(:first-child) { padding-left: 0; border-left: 0; }
  .metrics { grid-template-columns: 1fr; }
  .metric { min-height: 190px; border-right: 0; border-bottom: 1px solid var(--line); }
  .territories { grid-template-columns: 1fr; }
  .territory-offset { margin-top: 2rem; }
  .work-header { align-items: start; flex-direction: column; }
  .work-filters { justify-content: start; }
  .project-media { min-height: 340px; }
  .service { grid-template-columns: 2.5rem 1fr; gap: 1rem; }
  .service p { grid-column: 2; }
  .value-item { grid-template-columns: 2.5rem 1fr; }
  .value-item p { grid-column: 2; }
  .process-grid { grid-template-columns: 1fr; }
  .process-grid li { min-height: 220px; border-right: 0; border-bottom: 1px solid #3c4146; }
  .process-grid li:last-child { border-bottom: 0; }
  .brand-groups p { grid-template-columns: 1fr; gap: .5rem; }
  .social-link { grid-template-columns: 2.5rem 1fr auto; }
  .contact-form { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr; align-items: start; }
  html[lang="zh-CN"] .hero h1 {
    font-size: clamp(2.85rem, 13.5vw, 4.4rem);
    line-height: 1.1;
  }
  html[lang="zh-CN"] .section-heading h2,
  html[lang="zh-CN"] .territory-intro h2,
  html[lang="zh-CN"] .work h2,
  html[lang="zh-CN"] .partnerships h2,
  html[lang="zh-CN"] .brand-value h2,
  html[lang="zh-CN"] .process h2,
  html[lang="zh-CN"] .brands h2,
  html[lang="zh-CN"] .socials h2,
  html[lang="zh-CN"] .contact h2 {
    font-size: clamp(2.35rem, 11vw, 3.7rem);
    line-height: 1.12;
  }
  html[lang="zh-CN"] .site-nav { font-size: .78rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}