:root {
  color-scheme: light;
  font-family: "Helvetica Neue", Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--text-primary);
  background: var(--page-background);
  font-synthesis: none;
  line-height: 1.75;
  --accent: #333;
  --page-background: #fafafa;
  --text-primary: #171717;
  --text-secondary: #626262;
  --rule: #d9d9d9;
  --icon-filter: brightness(0);
  --menu-background: rgb(255 255 255 / 80%);
  --menu-hover: rgb(0 0 0 / 5%);
  --link-color: #171717;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --accent: #e0e0e0;
  --page-background: #161616;
  --text-primary: #f2f2f2;
  --text-secondary: #b5b5b5;
  --rule: #3b3b3b;
  --icon-filter: brightness(0) invert(1);
  --menu-background: rgb(22 22 22 / 80%);
  --menu-hover: rgb(255 255 255 / 10%);
  --link-color: #f2f2f2;
}

*, *::before, *::after { box-sizing: border-box; animation: none !important; transition: none !important; scroll-behavior: auto !important; }

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

body { min-width: 0; }

img { display: block; max-width: 100%; height: auto; }

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

a:hover { text-decoration: underline; text-underline-offset: 4px; }

a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }

address { font-style: normal; }

.container { width: min(1248px, calc(100% - 96px)); margin-inline: auto; }

.skip-link { position: absolute; left: 20px; top: 12px; z-index: 3; padding: 10px 16px; color: #111; background: #fff; clip-path: inset(50%); }

.skip-link:focus { clip-path: none; }

.site-header { position: relative; z-index: 2; display: grid; grid-template-columns: auto 1fr auto; gap: 52px; align-items: center; min-height: 96px; border-bottom: 1px solid var(--rule); }

.brand { display: block; width: 116px; }

.brand img { width: 100%; filter: var(--icon-filter); }

.main-nav { justify-self: start; text-align: left; font-size: 12px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; }

.main-nav a { display: inline-block; padding-block: 16px; }

.header-actions { display: flex; align-items: center; justify-self: end; gap: 10px; }

.theme-toggle { display: grid; place-items: center; flex-shrink: 0; width: 44px; height: 44px; padding: 0; border: 0; border-radius: 4px; background: transparent; color: var(--text-primary); cursor: pointer; }

.theme-toggle[hidden] { display: none; }

.theme-toggle:hover { background: var(--menu-hover); }

.theme-toggle:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }

.theme-toggle img, .language-toggle img, .text-link img { filter: var(--icon-filter); }

.theme-sun-off, :root[data-theme="dark"] .theme-sun { display: none; }

:root[data-theme="dark"] .theme-sun-off { display: block; }

.language-nav { position: relative; justify-self: end; font-size: 13px; }

.language-toggle { display: flex; align-items: center; gap: 8px; min-height: 44px; padding: 6px 10px; border-radius: 4px; color: var(--text-primary); font-weight: 400; line-height: 1; list-style: none; cursor: pointer; user-select: none; }

.language-toggle::-webkit-details-marker { display: none; }

.language-toggle:hover, .language-nav[open] .language-toggle { background: var(--menu-hover); }

.language-toggle:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }

.language-toggle img { flex-shrink: 0; }

.language-globe { opacity: 0.9; }

.language-chevron { margin-left: 2px; opacity: 0.8; }

.language-nav[open] .language-chevron { transform: rotate(180deg); }

.language-options { position: absolute; top: calc(100% + 8px); right: 0; z-index: 2; display: grid; gap: 3px; min-width: 172px; max-width: calc(100vw - 40px); max-height: 60vh; overflow-y: auto; padding: 6px; border: 1px solid var(--rule); border-radius: 6px; background: var(--menu-background); color: var(--text-primary); }

.language-options a { display: flex; justify-content: space-between; align-items: center; gap: 20px; min-height: 42px; padding: 8px 12px; border-radius: 4px; line-height: 1.4; white-space: nowrap; }

.language-options a:hover, .language-options a:focus-visible { background: var(--menu-hover); text-decoration: none; }

.language-options a:focus-visible { outline: 2px solid currentColor; outline-offset: -2px; }

.language-options a[aria-current="page"] { font-weight: 600; }

:root[data-theme="dark"] .language-options img { filter: brightness(0) invert(1); }

.site-footer { padding-block: 40px; color: #b5b5b5; background: #0c0c0c; }

.footer-grid { display: grid; grid-template-columns: 130px minmax(0, 1fr) 205px; gap: 25px; align-items: center; }

.footer-brand img { width: 130px; }

.footer-copy { text-align: center; font-size: 11px; line-height: 1.85; }

.footer-contact { display: grid; gap: 10px; color: #fff; font-size: 13px; }

.footer-contact .contact-item { display: flex; align-items: center; gap: 9px; overflow-wrap: anywhere; }

.footer-contact img { flex-shrink: 0; width: 20px; height: 20px; object-fit: contain; }

.not-found { display: grid; min-height: 100vh; place-items: center; padding: 40px 24px; text-align: center; }

.not-found main { width: min(100%, 600px); }

.not-found img { margin: 0 auto 32px; }

:root[data-theme="dark"] .not-found img { filter: brightness(0) invert(1); }

.error-code { font-size: 80px; line-height: 1.1; color: #777; }

.not-found h1 { margin-top: 20px; font-size: 28px; }

.not-found p[lang] { margin-top: 10px; color: var(--text-secondary); }

.not-found nav { display: flex; justify-content: center; gap: 24px; margin-top: 28px; }

.not-found nav a { color: var(--link-color); text-decoration: underline; }

@media (max-width: 960px) {
  .container { width: calc(100% - 56px); }
  .footer-grid { grid-template-columns: 100px 1fr; gap: 24px; }
  .footer-contact { grid-column: 2; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-copy { text-align: left; }
}

@media (max-width: 640px) {
  .container { width: calc(100% - 40px); }
  .site-header { grid-template-columns: 74px minmax(0, 1fr) auto; min-height: 80px; gap: 8px; }
  .brand { width: 74px; }
  .main-nav { font-size: 12px; letter-spacing: 0; }
  .header-actions { gap: 2px; }
  .theme-toggle { width: 36px; }
  .language-nav { font-size: 12px; }
  .language-toggle { gap: 6px; padding-inline: 6px; }
  .language-globe { width: 16px; height: 16px; }
  .language-chevron { width: 10px; height: 10px; margin-left: 0; }
  .site-footer { padding-block: 32px; }
  .footer-grid { display: flex; flex-direction: column; align-items: flex-start; gap: 22px; }
  .footer-brand img { width: 100px; }
  .footer-copy { text-align: left; }
  .footer-contact { display: grid; grid-template-columns: 1fr; gap: 12px; font-size: 14px; }
}

@media (max-width: 380px) {
  .container { width: calc(100% - 32px); }
  .site-header { grid-template-columns: 64px minmax(0, 1fr) auto; gap: 6px; }
  .brand { width: 64px; }
  .main-nav { font-size: 11px; white-space: nowrap; }
}

/* Editorial layout: a shared grid, restrained rules and explicit spacing. */
.about-content { padding-bottom: 112px; }
.section-space { margin-top: 112px; }
.section-label, .eyebrow, .hero-photo figcaption { font-size: 11px; font-weight: 500; line-height: 1.5; letter-spacing: .14em; text-transform: uppercase; }
.section-label { display: flex; justify-content: space-between; gap: 24px; color: var(--text-secondary); }
.eyebrow { color: var(--text-secondary); margin-bottom: 24px; }
.body-copy { font-size: 15px; line-height: 1.85; color: var(--text-secondary); overflow-wrap: anywhere; }
.body-copy p { margin: 0; }
.about-content h2 { font-size: clamp(30px, 3.5vw, 46px); font-weight: 400; line-height: 1.15; letter-spacing: -.035em; }
.about-content h2 span { display: block; }
.intro { padding-top: 56px; }
.intro-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .85fr); align-items: end; gap: 80px; margin-top: 36px; }
.intro h1 { font-size: clamp(48px, 6.6vw, 88px); font-weight: 400; letter-spacing: -.06em; line-height: 1.02; }
.intro h1 span { display: block; }
.intro-copy { max-width: 390px; padding-bottom: 3px; }
.text-link { display: inline-flex; align-items: center; gap: 32px; min-height: 44px; margin-top: 24px; padding-block: 9px; border-bottom: 1px solid currentColor; color: var(--text-primary); font-size: 13px; line-height: 1.5; }
.text-link:hover { text-decoration: none; opacity: .7; }
.hero-photo { margin-top: 52px; }
.hero-photo > img { width: 100%; height: clamp(220px, 23vw, 310px); object-fit: cover; object-position: center; }
.hero-photo figcaption { display: flex; justify-content: space-between; gap: 24px; padding-top: 16px; color: var(--text-secondary); font-size: 10px; letter-spacing: .1em; }
.expertise { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); align-items: start; gap: 96px; }
.section-image img { width: 100%; object-fit: cover; }
.company-visual .section-image img { aspect-ratio: 1.2; }
.experience { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-top: 20px; }
.experience-number { font-size: 58px; font-weight: 400; letter-spacing: -.07em; line-height: 1; }
.experience-number span { font-size: 32px; vertical-align: top; line-height: 1.4; }
.experience > p:last-child { max-width: 185px; text-align: right; font-size: 12px; line-height: 1.6; color: var(--text-secondary); }
.expertise-copy { padding-top: 4px; }
.expertise-copy .body-copy { margin-top: 28px; }
.service-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 28px; list-style: none; margin: 30px 0 0; padding: 0; }
.service-list li { display: flex; align-items: baseline; gap: 18px; padding-block: 19px; border-top: 1px solid var(--rule); font-size: 13px; line-height: 1.5; }
.service-number { color: var(--text-secondary); font-size: 10px; font-variant-numeric: tabular-nums; }
.markets { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); align-items: center; gap: 64px; padding-block: 40px; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.market-intro .eyebrow { margin-bottom: 12px; }
.market-intro h2 { font-size: 25px; line-height: 1.3; letter-spacing: -.025em; }
.market-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; }
.market-list > div { display: flex; flex-direction: column-reverse; gap: 10px; }
.market-list dt { color: var(--text-secondary); font-size: 12px; line-height: 1.5; }
.market-list dd { font-size: 52px; font-weight: 400; line-height: 1; letter-spacing: -.05em; font-variant-numeric: tabular-nums; }
.market-list dd span { padding-left: 3px; font-size: 22px; }
.mission { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; gap: 96px; }
.mission-copy .body-copy { margin-top: 28px; }
.mission-image img { aspect-ratio: 1.3; }
.attribution { font-size: 12px; }
.contact { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); align-items: center; gap: 96px; padding-top: 72px; border-top: 1px solid var(--rule); }
.contact-image img { aspect-ratio: 1.3; }
.contact-address { margin-top: 28px; color: var(--text-secondary); font-size: 14px; line-height: 1.8; }
.contact-details dl { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 24px; margin-top: 32px; }
.contact-details dt { color: var(--text-secondary); font-size: 11px; margin-bottom: 8px; }
.contact-details dd { font-size: 14px; line-height: 1.6; overflow-wrap: anywhere; }
:lang(zh-CN) .intro h1 { font-size: clamp(38px, 5.1vw, 70px); letter-spacing: -.045em; line-height: 1.3; }
:lang(zh-CN) .about-content h2 { line-height: 1.4; letter-spacing: -.02em; }
:lang(zh-CN) .eyebrow, :lang(zh-CN) .section-label { letter-spacing: .12em; }

@media (max-width: 960px) {
  .section-space { margin-top: 80px; }
  .intro-grid { gap: 40px; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); }
  .intro h1 { font-size: clamp(44px, 6.5vw, 64px); }
  .expertise, .mission, .contact { gap: 44px; }
  .markets { grid-template-columns: 1fr; gap: 32px; }
  .market-list { gap: 32px; }
  .company-visual .section-image img { aspect-ratio: 1; }
  .contact-details dl { grid-template-columns: 1fr; gap: 16px; }
  .service-list { column-gap: 16px; }
  .service-list li { gap: 10px; }
}

@media (max-width: 640px) {
  .about-content { padding-bottom: 64px; }
  .intro { padding-top: 36px; }
  .section-label, .eyebrow { font-size: 10px; }
  .intro-grid { grid-template-columns: 1fr; gap: 24px; margin-top: 28px; }
  .intro h1 { font-size: clamp(44px, 11vw, 68px); }
  :lang(zh-CN) .intro h1 { font-size: clamp(36px, 8.5vw, 52px); }
  .intro-copy { max-width: 100%; }
  .body-copy { font-size: 14px; line-height: 1.85; }
  .text-link { margin-top: 14px; }
  .hero-photo { margin-top: 32px; }
  .hero-photo > img { height: 210px; object-position: 64% center; }
  .hero-photo figcaption { gap: 16px; font-size: 9px; letter-spacing: .04em; }
  .hero-photo figcaption > span:last-child { flex-shrink: 0; }
  .section-space { margin-top: 64px; }
  .expertise, .mission, .contact { grid-template-columns: 1fr; gap: 32px; }
  .expertise-copy { grid-row: 1; }
  .eyebrow { margin-bottom: 18px; }
  .about-content h2 { font-size: clamp(29px, 7vw, 38px); }
  .expertise-copy .body-copy, .mission-copy .body-copy { margin-top: 22px; }
  .service-list { margin-top: 24px; }
  .service-list li { padding-block: 16px; font-size: 12px; }
  .company-visual .section-image img { aspect-ratio: 1.4; }
  .experience-number { font-size: 48px; }
  .experience > p:last-child { max-width: 160px; }
  .markets { padding-block: 30px; gap: 28px; }
  .market-intro h2 { font-size: 24px; }
  .market-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px 24px; }
  .market-list dd { font-size: 46px; }
  .contact { padding-top: 40px; }
  .contact-copy { grid-row: 1; }
  .contact-details dl { grid-template-columns: 1fr; margin-top: 24px; gap: 18px; }
  .contact-address { margin-top: 22px; }
}