@charset "utf-8";

:root {
  color-scheme: light;
  --ink: #151718;
  --muted: #686d6d;
  --paper: #f3f3ef;
  --paper-deep: #e7e8e1;
  --line: rgba(21, 23, 24, .16);
  --brand-orange: #EE7B2F;
  --brand-orange-dark: #A64A0A;
  --dark: #111516;
  --shell: min(1320px, calc(100% - 96px));
  --font: "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--font); -webkit-font-smoothing: antialiased; }
body, button, a { font-family: var(--font); }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { color: inherit; }
::selection { color: var(--ink); background: var(--brand-orange); }
.page-shell { width: var(--shell); margin-inline: auto; }
.section-pad { padding-block: clamp(88px, 11vw, 154px); }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 12px 18px; color: var(--ink); background: var(--brand-orange); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: absolute; z-index: 20; inset: 0 0 auto; display: flex; align-items: center; justify-content: space-between; width: var(--shell); height: 94px; margin-inline: auto; color: white; border-bottom: 1px solid rgba(255,255,255,.23); }
.brand { display: inline-flex; align-items: center; gap: 11px; color: inherit; }
.brand { flex: 0 0 auto; }
.brand__logo { width: 100px; height: auto; }
.brand__name { padding-inline-start: 11px; border-inline-start: 1px solid currentColor; font-size: 16px; font-weight: 600; line-height: 1.4; letter-spacing: normal; white-space: nowrap; transform: translateY(4px); }
.site-nav { display: flex; align-items: center; gap: clamp(12px, 1.15vw, 20px); font-size: 13px; }
.site-nav > * { flex: 0 0 auto; }
.site-nav a { transition: color .2s ease; }
html:lang(zh-Hans) .site-nav { font-family: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", sans-serif; font-size: 14px; font-weight: 600; font-kerning: normal; }
html:lang(zh-Hans) .language-picker__label { font-family: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", sans-serif; font-size: 12px; font-weight: 600; letter-spacing: normal; }
html:lang(zh-Hans) .language-picker select { font-size: 12px; }
.site-nav a:hover { color: var(--brand-orange); }
.site-nav__contact { display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; padding: 13px 18px; color: var(--ink); background: var(--brand-orange); border: 0; border-radius: 3px; box-shadow: 0 7px 20px rgba(8,12,13,.18); font-weight: 700; white-space: nowrap; transition: background-color .2s, box-shadow .2s, transform .2s; }
.site-nav__contact span { margin-inline-start: 0; color: var(--ink); font-size: 16px; line-height: 1; }
.site-nav__contact:hover { color: var(--ink) !important; background: #f58a41; box-shadow: 0 10px 24px rgba(8,12,13,.25); transform: translateY(-1px); }
.language-picker { display: flex; flex: 0 0 auto; align-items: center; gap: 9px; margin: 0; }
.language-picker__label { display: inline-flex; align-items: center; gap: 6px; color: inherit; font-size: 11px; font-weight: 700; letter-spacing: .02em; white-space: nowrap; }
.language-picker__label svg { width: 18px; height: 18px; stroke: currentColor; stroke-width: 1.4; }
.language-picker select { width: 110px; min-height: 40px; padding: 0 24px 0 8px; color: inherit; background: transparent; border: 1px solid rgba(255,255,255,.55); border-radius: 2px; font: inherit; font-size: 11px; cursor: pointer; }
.language-picker select option { color: var(--ink); background: white; }
.language-picker__submit { min-height: 36px; padding: 0 10px; color: inherit; background: transparent; border: 1px solid currentColor; border-radius: 2px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.menu-toggle { display: none; }
.page-case .site-header { color: var(--ink); border-color: var(--line); }
.page-case .site-nav__contact { color: var(--ink); background: var(--brand-orange); border: 0; }
.page-case .site-nav__contact span { color: var(--ink); }
.page-case .site-nav a:hover { color: var(--brand-orange-dark); }
.page-case .language-picker select { border-color: var(--line); }
html[dir="rtl"] .skip-link { right: 8px; left: auto; }
html[dir="rtl"] .hero__wash { background: linear-gradient(270deg, rgba(7,11,12,.83) 0%, rgba(7,11,12,.62) 39%, rgba(7,11,12,.12) 78%), linear-gradient(0deg, rgba(7,11,12,.6), transparent 43%); }
html[lang="ar"] .eyebrow, html[lang="ar"] h1, html[lang="ar"] h2, html[lang="ar"] h3 { letter-spacing: normal; }

.hero { position: relative; display: flex; min-height: min(790px, 96svh); min-height: clamp(650px, 92svh, 920px); align-items: stretch; overflow: hidden; color: white; background: #16191a; }
.hero__photo, .hero__video, .hero__wash { position: absolute; inset: 0; }
.hero__photo { background: url("../images/hero-live.webp") center 43% / cover no-repeat; transform: scale(1.015); }
.hero__video { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero__wash { background: linear-gradient(90deg, rgba(7,11,12,.83) 0%, rgba(7,11,12,.62) 39%, rgba(7,11,12,.12) 78%), linear-gradient(0deg, rgba(7,11,12,.6), transparent 43%); }
.hero__content { position: relative; display: flex; min-height: inherit; flex-direction: column; justify-content: center; padding-top: 90px; padding-bottom: 60px; }
.eyebrow { margin: 0; font-size: 10px; line-height: 1.4; font-weight: 700; letter-spacing: .17em; text-transform: uppercase; }
.hero__eyebrow { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.76); }
.signal-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-orange); box-shadow: 0 0 0 5px rgba(238,123,47,.17); }
.hero__title { margin: 27px 0 19px; font-size: clamp(56px, 9.3vw, 126px); line-height: 1.03; font-weight: 600; letter-spacing: -.075em; }
.hero__title span { display: block; }
.hero__title span:nth-child(2) { color: var(--brand-orange); }
.hero__intro { max-width: 480px; margin: 0; color: rgba(255,255,255,.8); font-size: 15px; line-height: 1.9; }
.hero__actions { display: flex; align-items: center; gap: 29px; margin-top: 33px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; gap: 32px; padding: 0 19px; font-size: 13px; font-weight: 700; transition: background .2s ease, color .2s ease, transform .2s ease; }
.button:hover { transform: translateY(-2px); }
.button--light { color: var(--ink); background: var(--brand-orange); }
.button--light:hover { background: white; }
.button--dark { color: white; background: var(--ink); }
.button--dark:hover { color: var(--ink); background: var(--brand-orange); }
.text-link { display: inline-flex; align-items: center; gap: 20px; padding-block: 9px; font-size: 13px; font-weight: 700; }
.text-link span { color: var(--brand-orange-dark); transition: transform .2s ease; }
.text-link:hover span { transform: translate(3px,-3px); }
.text-link--light { color: white; }
.text-link--light span { color: var(--brand-orange); }
.hero__bottom { position: absolute; inset: auto 0 26px; display: flex; justify-content: space-between; color: rgba(255,255,255,.72); font-size: 10px; letter-spacing: .13em; }
.hero__scroll { display: flex; align-items: center; gap: 10px; text-transform: uppercase; }
.hero__scroll span { width: 36px; height: 1px; background: var(--brand-orange); }
.hero__index { position: absolute; top: 52%; right: 4.8%; color: rgba(255,255,255,.68); font-size: 10px; letter-spacing: .13em; writing-mode: vertical-rl; }

.work-engine { padding-block: clamp(82px, 9vw, 128px); color: #fff; background: var(--dark); }
.work-engine__layout { display: grid; grid-template-columns: minmax(0, .83fr) minmax(0, 1fr); align-items: center; gap: clamp(56px, 8vw, 112px); }
.work-engine__intro .eyebrow { display: flex; align-items: center; gap: 10px; color: var(--brand-orange); }
.work-engine__dash { width: 24px; height: 1px; background: var(--brand-orange); }
.work-engine__intro h2 { max-width: 560px; margin: 18px 0 17px; font-size: clamp(42px, 4.7vw, 64px); line-height: 1.15; font-weight: 600; letter-spacing: -.045em; }
.work-engine__summary { max-width: 500px; margin: 0; color: rgba(255,255,255,.62); font-size: 15px; line-height: 1.9; text-wrap: pretty; }
.work-engine__all { display: inline-flex; align-items: center; gap: 18px; margin-top: 34px; padding: 12px 18px; border: 1px solid rgba(255,255,255,.38); border-radius: 999px; font-size: 13px; font-weight: 700; transition: color .2s ease, border-color .2s ease, background-color .2s ease; }
.work-engine__all span { color: var(--brand-orange); transition: transform .2s ease; }
.work-engine__all:hover { color: var(--ink); border-color: var(--brand-orange); background: var(--brand-orange); }
.work-engine__all:hover span { color: var(--ink); transform: translate(3px,-3px); }
.work-engine__list { border-top: 1px solid rgba(255,255,255,.14); }
.work-engine__item { display: grid; grid-template-columns: 22px minmax(0, 1fr) 18px; align-items: center; gap: 18px; min-height: 78px; padding: 15px 6px; border-bottom: 1px solid rgba(255,255,255,.1); transition: border-color .2s ease; }
.work-engine__minus { color: rgba(255,255,255,.62); font-size: 18px; line-height: 1; }
.work-engine__copy { display: grid; gap: 5px; min-width: 0; }
.work-engine__copy strong { color: #fff; font-size: 16px; line-height: 1.45; font-weight: 700; transition: color .2s ease; }
.work-engine__copy small { color: rgba(255,255,255,.58); font-size: 13px; line-height: 1.65; }
.work-engine__arrow { color: var(--brand-orange); font-size: 17px; text-align: end; transition: transform .2s ease; }
.work-engine__item:hover { border-color: rgba(238,123,47,.6); }
.work-engine__item:hover .work-engine__copy strong { color: var(--brand-orange); }
.work-engine__item:hover .work-engine__arrow { transform: translateX(4px); }
@media (max-width: 900px) {
  .work-engine__layout { grid-template-columns: 1fr; gap: 42px; }
  .work-engine__intro h2, .work-engine__summary { max-width: 650px; }
}
.intro-band { display: grid; grid-template-columns: 1fr 2.1fr auto; align-items: center; gap: 34px; min-height: 180px; border-bottom: 1px solid var(--line); }
.intro-band__label { color: var(--muted); }
.intro-band__copy { max-width: 720px; margin: 0; font-size: clamp(19px, 2.7vw, 34px); line-height: 1.55; letter-spacing: -.045em; }
.round-link { display: grid; width: 47px; height: 47px; place-items: center; border: 1px solid var(--line); border-radius: 50%; font-size: 20px; transition: color .2s, background .2s, border-color .2s; }
.round-link:hover { color: var(--ink); background: var(--brand-orange); border-color: var(--brand-orange); }

.section-heading { margin-bottom: 56px; }
.section-heading--split { display: flex; align-items: end; justify-content: space-between; gap: 40px; }
.section-number { margin-right: 16px; color: var(--brand-orange-dark); }
.section-heading h2, .approach h2, .contact-band h2 { margin: 22px 0 0; font-size: clamp(43px, 6.1vw, 77px); line-height: 1.12; font-weight: 550; letter-spacing: -.07em; }
.section-heading h2 em, .approach h2 em, .contact-band h2 em { color: #858b83; font-style: normal; }
.section-heading__aside { max-width: 365px; margin: 0 1.5% 7px 0; color: var(--muted); font-size: 13px; line-height: 1.9; }
.services { background: var(--paper); }
.home-page .services { padding-top: clamp(52px, 6vw, 84px); }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.service-card { position: relative; min-height: 316px; padding: 28px 24px 24px; border-right: 1px solid var(--line); }
.service-card:first-child { border-left: 1px solid var(--line); }
.service-card--feature { background: var(--brand-orange); }
.service-card__number { font-size: 10px; color: var(--muted); }
.service-card__icon { display: grid; width: 46px; height: 46px; margin-block: 42px 29px; place-items: center; color: var(--brand-orange-dark); font-size: 39px; font-weight: 300; }
.service-card__icon--frame { position: relative; width: 31px; height: 31px; margin-inline: 7px; border: 1px solid var(--ink); }
.service-card__icon--frame i { position: absolute; width: 5px; height: 5px; border: 1px solid var(--ink); }
.service-card__icon--frame i:nth-child(1) { top: -3px; left: -3px; }.service-card__icon--frame i:nth-child(2) { top: -3px; right: -3px; }.service-card__icon--frame i:nth-child(3) { bottom: -3px; left: -3px; }.service-card__icon--frame i:nth-child(4) { right: -3px; bottom: -3px; }
.service-card__icon--focus i { width: 24px; height: 24px; border: 1px solid var(--brand-orange-dark); border-radius: 50%; box-shadow: 0 0 0 8px rgba(238,123,47,.12), 0 0 0 16px rgba(238,123,47,.07); }
.service-card h3 { margin: 0 0 12px; font-size: 18px; letter-spacing: -.035em; }
.service-card p { max-width: 245px; margin: 0; color: #5e6361; font-size: 12px; line-height: 1.85; }
.service-card__tag { display: block; margin-top: 25px; color: #777d75; font-size: 8px; letter-spacing: .12em; }

.work-section { padding-top: clamp(64px, 7vw, 96px); color: white; background: var(--dark); }
.work-section .section-heading h2 em { color: var(--brand-orange); }

.social-feed { overflow: hidden; padding-bottom: clamp(36px, 4vw, 56px); color: #fff; background: #111516; }
.social-feed__intro { position: relative; z-index: 5; max-width: 760px; margin-bottom: 46px; }
.social-feed__intro .eyebrow { display: flex; align-items: center; gap: 10px; color: var(--brand-orange); }
.social-feed__dash { width: 18px; height: 2px; background: var(--brand-orange); }
.social-feed__intro h2 { margin: 22px 0 15px; font-size: clamp(36px, 5vw, 58px); line-height: 1.16; font-weight: 650; letter-spacing: -.045em; text-wrap: balance; }
.social-feed__intro > p:not(.eyebrow) { max-width: 670px; margin: 0; color: rgba(255,255,255,.64); font-size: 16px; line-height: 1.8; text-wrap: pretty; }
.social-feed__links { display: flex; align-items: center; gap: 13px; margin-top: 27px; }
.social-feed__social { display: grid; width: 42px; height: 42px; place-items: center; color: #fff; font-size: 25px; font-weight: 800; line-height: 1; transition: transform .2s ease, filter .2s ease; }
.social-feed__social:is(a):hover { filter: brightness(1.15); transform: translateY(-3px); }
.social-feed__social svg { width: 32px; height: 32px; fill: none; stroke: currentColor; stroke-width: 2.2; }
.social-feed__social-dot { fill: currentColor; stroke: none; }
.social-feed__social-play { fill: #fff; stroke: none; }
.social-feed__social--youtube { color: #ff3030; }
.social-feed__social--youtube svg { width: 32px; height: 32px; overflow: hidden; border-radius: 8px; }
.social-feed__social--wechat { color: #07c160; }
.social-feed__social--wechat svg { width: 32px; height: 32px; overflow: hidden; border-radius: 50%; }
.social-feed__wechat-wrap { position: relative; display: inline-flex; }
.social-feed__wechat-wrap:hover, .social-feed__wechat-wrap:focus-within { z-index: 30; }
.social-feed__qr { position: absolute; z-index: 31; top: calc(100% + 12px); left: 50%; width: min(210px, 76vw); padding: 6px; background: #fff; border: 1px solid rgba(21,23,24,.12); border-radius: 12px; box-shadow: 0 12px 34px rgba(0,0,0,.32); opacity: 0; visibility: hidden; transform: translate(-50%, 6px); transition: opacity .18s ease, transform .18s ease, visibility .18s; }
.social-feed__qr img { display: block; width: 100%; height: auto; border-radius: 7px; }
.social-feed__wechat-wrap:hover .social-feed__qr, .social-feed__wechat-wrap:focus-within .social-feed__qr { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.social-feed__social--bilibili { color: #00a1d6; }
.social-feed__social--bilibili svg { width: 32px; height: 32px; overflow: hidden; border-radius: 7px; }
.social-feed__social--xiaohongshu { color: #ff2442; }
.social-feed__social--xiaohongshu svg { width: 32px; height: 32px; border-radius: 8px; overflow: hidden; }
.social-feed__carousel { position: relative; }
.social-feed__grid { display: flex; gap: 20px; overflow-x: auto; overscroll-behavior-inline: contain; scroll-snap-type: x mandatory; scrollbar-width: none; }
.social-feed__grid::-webkit-scrollbar { display: none; }
.social-feed__card { flex: 0 0 calc((100% - 40px) / 3); min-width: 0; overflow: hidden; color: #fff; background: #242526; border: 1px solid rgba(255,255,255,.08); border-radius: 14px; scroll-snap-align: start; }
.social-feed__arrow { position: absolute; z-index: 2; top: 50%; display: grid; width: 44px; height: 44px; padding: 0; place-items: center; color: #fff; background: rgba(35,37,38,.92); border: 1px solid rgba(255,255,255,.2); border-radius: 50%; box-shadow: 0 5px 18px rgba(0,0,0,.28); cursor: pointer; transform: translateY(-50%); transition: color .2s, background .2s, opacity .2s, transform .2s; }
.social-feed__arrow:hover:not(:disabled) { color: var(--ink); background: var(--brand-orange); }
.social-feed__arrow:disabled { cursor: default; opacity: .38; }
.social-feed__arrow[hidden] { display: none; }
.social-feed__arrow span { margin-top: -3px; font: 32px/1 Arial, sans-serif; }
.social-feed__arrow--prev { left: -62px; }
.social-feed__arrow--next { right: -62px; }
.social-feed__arrow:focus-visible, .social-feed__grid:focus-visible { outline: 2px solid var(--brand-orange); outline-offset: 4px; }
@media (max-width: 1450px) {
  .social-feed__arrow--prev { left: 8px; }
  .social-feed__arrow--next { right: 8px; }
}
.social-feed__player { aspect-ratio: 16 / 9; overflow: hidden; background: #050607; }
.social-feed__player iframe { display: block; width: 100%; height: 100%; border: 0; }
.social-feed__image { position: relative; display: block; aspect-ratio: 16 / 9; overflow: hidden; background: #25292a; }
.social-feed__image img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s cubic-bezier(.2,.7,.2,1); }
.social-feed__image > span { position: absolute; top: 12px; right: 12px; display: grid; width: 28px; height: 28px; place-items: center; color: var(--ink); background: #fff; border-radius: 50%; font-size: 15px; opacity: 0; transform: translateY(4px); transition: opacity .2s, transform .2s; }
.social-feed__card:hover .social-feed__image img { transform: scale(1.045); }
.social-feed__card:hover .social-feed__image > span { opacity: 1; transform: none; }
.social-feed__content { display: flex; height: 190px; min-height: 0; flex: 0 0 190px; flex-direction: column; padding: 17px 18px 16px; }
.social-feed__meta { display: flex; justify-content: space-between; gap: 12px; margin: 0 0 8px; color: var(--brand-orange); font-size: 10px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.social-feed__meta span { color: rgba(255,255,255,.48); font-weight: 500; letter-spacing: 0; }
.social-feed__content h3 { display: -webkit-box; overflow: hidden; margin: 0; font-size: 19px; line-height: 1.4; font-weight: 650; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.social-feed__summary { display: -webkit-box; overflow: hidden; margin: 9px 0 14px; color: rgba(255,255,255,.66); font-size: 13px; line-height: 1.7; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.social-feed__stats { display: flex; align-items: center; gap: 16px; margin-top: auto; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.68); font-size: 12px; }
.social-feed__stats span:last-child { margin-left: auto; }
.social-feed__stats span { display: inline-flex; align-items: center; gap: 5px; }
.social-feed__stats b { color: rgba(255,255,255,.72); font-size: 17px; font-weight: 500; line-height: 1; }
.social-feed__read { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: auto; padding-top: 10px; font-size: 12px; font-weight: 700; }
.social-feed__read span { color: var(--brand-orange); font-size: 16px; transition: transform .2s; }
.social-feed__read:hover span { transform: translate(3px,-3px); }
.social-feed__note { margin: 18px 0 0; color: rgba(255,255,255,.42); font-size: 11px; }
html:lang(zh-Hans) .social-feed__intro h2 { letter-spacing: normal; }
@media (max-width: 900px) {
  .social-feed__intro { margin-bottom: 34px; }
  .social-feed__grid { gap: 14px; }
  .social-feed__card { flex-basis: calc((100% - 14px) / 2); }
  .social-feed__arrow--prev { left: 8px; }
  .social-feed__arrow--next { right: 8px; }
  .social-feed__content { height: 205px; flex-basis: 205px; padding: 14px; }
  .social-feed__content h3 { font-size: 16px; }
}
@media (max-width: 680px) {
  .social-feed { padding-block: 74px 42px; }
  .work-section { padding-top: 56px; }
  .social-feed__intro { margin-bottom: 28px; }
  .social-feed__intro h2 { margin-top: 17px; font-size: clamp(34px, 9vw, 46px); }
  .social-feed__intro > p:not(.eyebrow) { font-size: 14px; }
  .social-feed__links { gap: 10px; margin-top: 21px; }
  .social-feed__grid { gap: 15px; }
  .social-feed__card { flex-basis: min(88%, 420px); }
  .social-feed__image { aspect-ratio: 1.5; }
  .social-feed__content { height: 190px; flex-basis: 190px; padding: 16px; }
  .social-feed__content h3 { font-size: 18px; }
  html:lang(zh-Hans) .social-feed__summary { font-size: 13px; }
}
.work-section .section-heading__aside { color: rgba(255,255,255,.57); }
.case-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 25px; margin-bottom: 30px; padding-bottom: 14px; border-bottom: 1px solid rgba(255,255,255,.22); }
.case-filters { display: flex; flex-wrap: wrap; gap: 7px; }
.filter-button { display: inline-flex; align-items: center; gap: 9px; min-height: 35px; padding: 0 11px; color: rgba(255,255,255,.66); background: transparent; border: 1px solid transparent; cursor: pointer; font-size: 11px; transition: color .2s, background .2s, border-color .2s; }
.filter-button span { color: #a0a39d; font-size: 9px; }
.filter-button:hover, .filter-button.is-active { color: var(--ink); background: var(--brand-orange); border-color: var(--brand-orange); }
.filter-button.is-active span { color: var(--ink); }
.case-toolbar__hint { color: rgba(255,255,255,.5); font-size: 10px; white-space: nowrap; }
.case-toolbar__hint span { margin-left: 8px; color: var(--brand-orange); }
.case-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 45px 20px; }
.case-card { min-width: 0; }
.case-card--lead { grid-column: span 2; }
.case-card[hidden] { display: none; }
.case-card__image { position: relative; display: block; aspect-ratio: 1.42; overflow: hidden; background: #292e2d; }
.case-card--lead .case-card__image { aspect-ratio: 1.88; }
.case-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform .65s cubic-bezier(.2,.7,.2,1), opacity .4s; }
.case-card__image:hover img { transform: scale(1.045); opacity: .85; }
.case-card__arrow { position: absolute; right: 14px; bottom: 14px; display: grid; width: 37px; height: 37px; place-items: center; color: var(--ink); background: var(--brand-orange); border-radius: 50%; font-size: 16px; transform: translateY(7px); opacity: 0; transition: opacity .2s, transform .2s; }
.case-card__image:hover .case-card__arrow, .case-card__image:focus-visible .case-card__arrow { transform: translateY(0); opacity: 1; }
.case-card__meta { display: flex; justify-content: space-between; gap: 20px; margin-top: 17px; color: var(--brand-orange); font-size: 9px; letter-spacing: .12em; }
.case-card h3 { margin: 10px 0 7px; font-size: clamp(17px, 2vw, 22px); line-height: 1.45; font-weight: 500; letter-spacing: -.035em; }
.case-card h3 a:hover { color: var(--brand-orange); }
.case-card p { max-width: 490px; margin: 0; color: rgba(255,255,255,.55); font-size: 12px; line-height: 1.7; }
.empty-cases { grid-column: 1 / -1; min-height: 170px; padding: 30px; border: 1px solid rgba(255,255,255,.2); }
.empty-cases p, .filter-empty { color: rgba(255,255,255,.65); font-size: 14px; }
.filter-empty { margin: 35px 0 0; }

.approach { background: var(--paper-deep); }
.approach__layout { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(45px, 9vw, 130px); }
.approach__photo { position: relative; min-height: 590px; background: #c7cbc4; }
.approach__photo img { width: 100%; height: 100%; position: absolute; inset: 0; object-fit: cover; }
.approach__photo-note { position: absolute; right: -1px; bottom: -1px; padding: 18px 23px; color: white; background: var(--dark); font-size: 8px; line-height: 1.8; letter-spacing: .14em; }
.approach__content h2 { margin-block: 22px 25px; }
.approach__lead { max-width: 485px; margin: 0; color: #5d6260; font-size: 14px; line-height: 1.9; }
.proof-list { margin-block: 35px 24px; border-top: 1px solid var(--line); }
.proof-list > div { display: grid; grid-template-columns: 42px 1fr; gap: 14px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.proof-list > div > span { padding-top: 4px; color: var(--brand-orange-dark); font-size: 10px; }
.proof-list p { margin: 0; color: #646966; font-size: 11px; line-height: 1.75; }
.proof-list strong { color: var(--ink); font-size: 13px; font-weight: 700; }

.partners-section { overflow: hidden; color: #fff; background: var(--dark); }
.partners-section__logos { display: flex; align-items: center; height: 116px; overflow: hidden; border-block: 1px solid rgba(255,255,255,.12); }
.partners-section__track { display: flex; align-items: center; width: max-content; height: 100%; direction: ltr; animation: partner-scroll-left max(66s, var(--partner-scroll-duration, 66s)) linear infinite; }
.partners-section__logos:hover .partners-section__track { animation-play-state: paused; }
.partners-section__group { display: flex; flex: none; align-items: center; justify-content: space-evenly; min-width: 100vw; height: 100%; gap: 24px; padding-inline: 12px; }
.partners-section__logo { display: grid; place-items: center; flex: none; width: clamp(156px, 12vw, 184px); height: 88px; overflow: hidden; }
.partners-section__logo img { display: block; width: 100%; height: 100%; min-width: 0; object-fit: contain; }
.partners-section__stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); padding-block: clamp(36px, 4vw, 58px); }
.partners-section__stat { display: grid; justify-items: center; align-content: center; gap: 4px; min-width: 0; text-align: center; }
.partners-section__stat + .partners-section__stat { border-inline-start: 1px solid rgba(255,255,255,.14); }
.partners-section__stat strong { color: #fff; font-size: clamp(36px, 4.2vw, 58px); font-weight: 700; line-height: 1; letter-spacing: -.045em; }
.partners-section__stat:last-child strong { font-size: clamp(27px, 3.2vw, 43px); letter-spacing: -.025em; }
.partners-section__stat span { color: rgba(255,255,255,.62); font-size: 13px; line-height: 1.6; }
@keyframes partner-scroll-left { to { transform: translateX(-50%); } }
@media (max-width: 760px) {
  .partners-section__logos { height: 94px; }
  .partners-section__group { gap: 16px; padding-inline: 8px; }
  .partners-section__logo { width: 140px; height: 70px; }
  .partners-section__stats { padding-block: 32px; }
  .partners-section__stat strong { font-size: clamp(27px, 8vw, 38px); }
  .partners-section__stat:last-child strong { font-size: clamp(19px, 5.5vw, 27px); }
  .partners-section__stat span { max-width: 110px; font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) {
  .partners-section__track { animation: none; }
  .partners-section__logos { overflow-x: auto; }
  .partners-section__group[aria-hidden="true"] { display: none; }
}

.contact-band { padding-block: clamp(72px, 10vw, 128px); color: white; background: var(--brand-orange); color: var(--ink); }
.contact-band__inner { display: flex; align-items: end; justify-content: space-between; gap: 44px; }
.contact-band .eyebrow { color: var(--ink); }
.contact-band h2 { margin-top: 20px; font-size: clamp(43px, 6vw, 74px); }
.contact-band h2 em { color: var(--ink); }
.contact-band__action { max-width: 390px; padding-bottom: 7px; }
.contact-band__action p { margin: 0 0 20px; color: var(--ink); font-size: 13px; line-height: 1.85; }
.contact-band__action .contact-missing, .contact-band__action .contact-lines { margin: 0; color: var(--ink); font-size: 12px; line-height: 1.8; }
.contact-band__action .contact-lines { margin-top: 8px; }
.contact-band .button--dark:hover { background: white; }

.site-footer { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 20px; min-height: 118px; padding: 25px max(calc((100vw - 1320px)/2), 48px); color: white; background: var(--dark); }
.brand--footer { justify-self: start; }
.site-footer p { margin: 0; color: rgba(255,255,255,.55); font-size: 10px; letter-spacing: .08em; }
.footer-admin { justify-self: end; color: rgba(255,255,255,.65); font-size: 10px; }
.footer-admin span { margin-left: 8px; color: var(--brand-orange); }
.site-footer small { grid-column: 1 / -1; padding-top: 14px; color: rgba(255,255,255,.38); border-top: 1px solid rgba(255,255,255,.17); font-size: 9px; }

.case-detail { padding-top: 145px; padding-bottom: 100px; }
.back-link { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 43px; color: var(--muted); font-size: 12px; }
.back-link:hover { color: var(--brand-orange-dark); }
.case-detail__header { max-width: 920px; margin-bottom: 45px; }
.case-detail__header h1 { margin: 16px 0; font-size: clamp(40px, 7vw, 86px); line-height: 1.12; letter-spacing: -.07em; }
.case-detail__summary { max-width: 660px; color: var(--muted); font-size: 16px; line-height: 1.8; }
.case-facts { display: flex; flex-wrap: wrap; gap: 35px; margin-top: 36px; }
.case-facts div { min-width: 115px; }
.case-facts dt { margin-bottom: 7px; color: var(--muted); font-size: 10px; }
.case-facts dd { margin: 0; font-size: 13px; }
.case-detail__cover { margin: 0; background: var(--paper-deep); }
.case-detail__cover img { width: 100%; max-height: 760px; object-fit: cover; }
.case-detail__body { max-width: 760px; margin: 60px auto; font-size: 15px; line-height: 2; }
.case-detail__gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.case-detail__gallery figure { margin: 0; }
.case-detail__gallery img { width: 100%; aspect-ratio: 1.45; object-fit: cover; }
.case-detail__gallery figcaption { margin-top: 8px; color: var(--muted); font-size: 11px; }
.case-detail__next { margin-top: 50px; }

@media (max-width: 1000px) {
  :root { --shell: min(100% - 56px, 850px); }
  .site-header { height: 78px; }
  .hero { min-height: min(760px, 93svh); }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .service-card:nth-child(3) { border-left: 1px solid var(--line); }
  .service-card:nth-child(n+3) { border-top: 1px solid var(--line); }
  .service-card { min-height: 290px; }
  .approach__layout { gap: 45px; }
  .approach__photo { min-height: 510px; }
}
@media (max-width: 840px) {
  .menu-toggle { display: flex; width: 42px; height: 42px; flex-direction: column; align-items: center; justify-content: center; gap: 6px; color: white; background: transparent; border: 1px solid rgba(255,255,255,.45); cursor: pointer; }
  .page-case .menu-toggle { color: var(--ink); border-color: var(--line); }
  .menu-toggle span { width: 17px; height: 1px; background: currentColor; transition: transform .2s; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav { position: absolute; top: 77px; inset-inline: 0; display: none; align-items: stretch; gap: 0; padding: 8px 20px 19px; color: white; background: rgba(17,21,22,.98); }
  .site-nav.is-open { display: flex; flex-direction: column; }
  .site-nav a { padding: 13px 4px; border-bottom: 1px solid rgba(255,255,255,.13); }
  .site-nav__contact { width: 100%; margin-top: 16px; padding: 15px 18px !important; border: 0 !important; }
  .language-picker { padding-top: 12px; }
  .language-picker__label { min-width: 90px; }
  .language-picker select { width: 100%; flex: 1; }
}
@media (max-width: 680px) {
  :root { --shell: calc(100% - 40px); }
  html { scroll-padding-top: 70px; }
  .section-pad { padding-block: 78px; }
  .site-header { height: 70px; }
  .brand__logo { width: 88px; }
  .brand__name { font-size: 10px; }
  .menu-toggle { display: flex; width: 42px; height: 42px; flex-direction: column; align-items: center; justify-content: center; gap: 6px; color: white; background: transparent; border: 1px solid rgba(255,255,255,.45); cursor: pointer; }
  .page-case .menu-toggle { color: var(--ink); border-color: var(--line); }
  .menu-toggle span { width: 17px; height: 1px; background: currentColor; transition: transform .2s; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav { position: absolute; top: 69px; left: 0; right: 0; display: none; align-items: stretch; gap: 0; padding: 8px 20px 19px; color: white; background: rgba(17,21,22,.98); }
  .site-nav.is-open { display: flex; flex-direction: column; }
  .site-nav a { padding: 15px 4px; border-bottom: 1px solid rgba(255,255,255,.13); }
  .site-nav__contact { width: 100%; margin-top: 16px; padding: 15px 18px !important; border: 0 !important; }
  .hero { min-height: min(740px, 94svh); }
  .hero__photo { background-position: 59% center; }
  .hero__wash { background: linear-gradient(90deg, rgba(7,11,12,.77), rgba(7,11,12,.34)), linear-gradient(0deg, rgba(7,11,12,.58), transparent 55%); }
  .hero__content { padding-top: 77px; padding-bottom: 77px; }
  .hero__title { margin-top: 24px; font-size: clamp(55px, 13vw, 78px); }
  .hero__intro { max-width: 400px; font-size: 13px; }
  .hero__actions { gap: 17px; margin-top: 26px; }
  .button { min-height: 48px; gap: 19px; padding-inline: 13px; font-size: 11px; }
  .text-link { gap: 9px; font-size: 11px; }
  .hero__bottom { bottom: 20px; font-size: 8px; }
  .hero__bottom > span:first-child { max-width: 170px; line-height: 1.7; }
  .hero__scroll span { width: 21px; }
  .hero__index { display: none; }
  .intro-band { grid-template-columns: 1fr auto; gap: 15px; min-height: 145px; padding-block: 25px; }
  .intro-band__label { grid-column: 1; }
  .intro-band__copy { grid-column: 1; grid-row: 2; font-size: 19px; }
  .intro-band .round-link { grid-column: 2; grid-row: 1 / span 2; width: 42px; height: 42px; }
  .home-page .services { padding-top: 52px; }
  .work-engine { padding-block: 76px; }
  .work-engine__layout { grid-template-columns: 1fr; gap: 38px; }
  .work-engine__intro h2 { max-width: 460px; font-size: clamp(39px, 10vw, 58px); }
  .work-engine__summary { max-width: 570px; font-size: 14px; }
  .work-engine__all { margin-top: 25px; }
  .work-engine__item { grid-template-columns: 18px minmax(0, 1fr) 16px; gap: 12px; min-height: 76px; padding-inline: 2px; }
  .work-engine__copy strong { font-size: 15px; }
  .work-engine__copy small { font-size: 12px; }
  .section-heading { margin-bottom: 35px; }
  .section-heading--split { align-items: start; flex-direction: column; gap: 18px; }
  .section-heading h2, .approach h2 { font-size: clamp(42px, 11vw, 58px); }
  .section-heading__aside { max-width: 100%; margin: 0; font-size: 12px; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .service-card { min-height: 282px; padding: 19px 13px 19px; }
  .service-card__icon { margin-block: 35px 22px; }
  .service-card h3 { font-size: 15px; line-height: 1.45; }
  .service-card p { font-size: 10px; }
  .service-card__tag { margin-top: 20px; font-size: 7px; letter-spacing: .07em; }
  .case-toolbar { align-items: start; flex-direction: column; gap: 10px; margin-bottom: 23px; }
  .case-filters { gap: 4px; }
  .filter-button { min-height: 31px; padding-inline: 8px; font-size: 10px; }
  .case-toolbar__hint { align-self: end; }
  .case-grid { grid-template-columns: 1fr 1fr; gap: 31px 12px; }
  .case-card--lead { grid-column: span 2; }
  .case-card__image, .case-card--lead .case-card__image { aspect-ratio: 1.18; }
  .case-card--lead .case-card__image { aspect-ratio: 1.55; }
  .case-card__meta { margin-top: 11px; font-size: 8px; }
  .case-card h3 { margin: 8px 0 5px; font-size: 14px; }
  .case-card p { font-size: 10px; }
  .approach__layout { grid-template-columns: 1fr; gap: 37px; }
  .approach__photo { min-height: 410px; }
  .approach__photo-note { padding: 13px 16px; font-size: 7px; }
  .approach__content h2 { margin-block: 18px 21px; }
  .approach__lead { font-size: 12px; }
  .proof-list { margin-top: 25px; }
  .proof-list > div { grid-template-columns: 29px 1fr; gap: 11px; padding-block: 14px; }
  .contact-band__inner { align-items: start; flex-direction: column; gap: 27px; }
  .contact-band h2 { font-size: clamp(42px, 11vw, 57px); }
  .contact-band__action { max-width: 100%; }
  .site-footer { grid-template-columns: 1fr auto; gap: 14px; min-height: 130px; padding: 23px 20px; }
  .site-footer p { grid-column: 1; grid-row: 2; }
  .footer-admin { grid-column: 2; grid-row: 1; }
  .site-footer small { grid-column: 1 / -1; grid-row: 3; }
  .case-detail { padding-top: 106px; padding-bottom: 70px; }
  .back-link { margin-bottom: 33px; }
  .case-detail__header { margin-bottom: 30px; }
  .case-detail__summary { font-size: 13px; }
  .case-facts { gap: 19px; margin-top: 26px; }
  .case-detail__body { margin-block: 37px; font-size: 13px; }
  .case-detail__gallery { gap: 9px; }
  .case-detail__gallery figcaption { font-size: 9px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

/* Simplified Chinese: native CJK rhythm, clean glyph fallback, and balanced wrapping. */
html:lang(zh-Hans) {
  --font: Arial, "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  line-break: strict;
  word-break: normal;
  overflow-wrap: break-word;
  font-kerning: normal;
}
html:lang(zh-Hans) p { text-wrap: wrap; text-wrap: pretty; }
html:lang(zh-Hans) :is(h1, h2, h3, .intro-band__copy) { text-wrap: balance; letter-spacing: normal; }
html:lang(zh-Hans) :is(.hero__bottom, .case-card__meta, .site-footer p) { letter-spacing: normal; }

@media (max-width: 680px) {
  html:lang(zh-Hans) .hero__title { font-size: clamp(48px, 16vw, 60px); }
  html:lang(zh-Hans) :is(.hero__intro, .section-heading__aside, .approach__lead, .case-detail__summary, .service-detail__summary) { font-size: 14px; }
  html:lang(zh-Hans) :is(.service-card p, .case-card p) { font-size: 12px; }
  html:lang(zh-Hans) .case-card h3 { font-size: 15px; }
  html:lang(zh-Hans) .case-card__meta { font-size: 9px; }
  html:lang(zh-Hans) .hero__bottom { font-size: 9px; }
  html:lang(zh-Hans) .case-detail__body, html:lang(zh-Hans) .service-detail__copy { font-size: 15px; }
  html:lang(zh-Hans) .case-detail__gallery figcaption { font-size: 10px; }
}


.home-project-contact {
  position: fixed;
  z-index: 18;
  right: max(22px, env(safe-area-inset-right));
  bottom: max(22px, env(safe-area-inset-bottom));
  display: inline-flex;
  min-width: 164px;
  min-height: 52px;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 0 17px;
  color: var(--ink);
  background: var(--brand-orange);
  border: 1px solid rgba(21,23,24,.12);
  border-radius: 4px;
  box-shadow: 0 9px 28px rgba(0,0,0,.28);
  font-size: 13px;
  font-weight: 700;
  transition: background-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.home-project-contact:hover {
  color: var(--ink);
  background: #f58a41;
  box-shadow: 0 12px 30px rgba(0,0,0,.34);
  transform: translateY(-2px);
}
.home-project-contact:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.home-project-contact > span:last-child { font-size: 16px; line-height: 1; }
html[dir="rtl"] .home-project-contact { right: auto; left: max(22px, env(safe-area-inset-left)); }
@media (max-width: 680px) {
  .home-project-contact { right: max(15px, env(safe-area-inset-right)); bottom: max(15px, env(safe-area-inset-bottom)); min-width: 145px; min-height: 48px; gap: 16px; padding-inline: 14px; font-size: 12px; }
  html[dir="rtl"] .home-project-contact { right: auto; left: max(15px, env(safe-area-inset-left)); }
}