:root {
  --background: #fff;
  --foreground: #0a0a0a;
  --muted: #6b6b6b;
  --border: #ebebeb;
  --surface: #fafafa;
  --header-height: 72px;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--background); color: var(--foreground); font-family: "Noto Sans SC", Inter, "PingFang SC", "Microsoft YaHei", sans-serif; font-weight: 300; line-height: 1.6; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img, video { display: block; max-width: 100%; user-select: none; -webkit-user-drag: none; }
button, input, textarea { color: inherit; font: inherit; }
button { cursor: pointer; }
::selection { background: var(--foreground); color: var(--background); }

.container { width: min(100% - 48px, 1200px); margin-inline: auto; }
.container--wide { max-width: 1600px; }
.section { padding-block: 120px; }
.section--surface { background: var(--surface); }
.bordered { border-block: 1px solid var(--border); }
.bordered-top { border-top: 1px solid var(--border); }
.page-top { padding-top: calc(var(--header-height) + 112px); }
.eyebrow { margin: 0 0 20px; color: var(--muted); font-size: 11px; letter-spacing: .22em; text-transform: uppercase; }
.section-heading h2 { margin: 0; font-size: clamp(30px, 4vw, 56px); font-weight: 300; letter-spacing: -.035em; line-height: 1.15; }
.section-heading--large h2 { font-size: clamp(46px, 7vw, 96px); }
.heading-row { display: flex; align-items: end; justify-content: space-between; gap: 32px; }
.text-link { color: var(--muted); font-size: 14px; letter-spacing: .12em; transition: color .3s; }
.text-link:hover { color: var(--foreground); }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; height: var(--header-height); border-bottom: 1px solid color-mix(in srgb, var(--border), transparent 50%); background: rgb(255 255 255 / .9); backdrop-filter: blur(18px); transition: background .5s var(--ease), color .5s var(--ease); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand { font-size: 11px; font-weight: 500; letter-spacing: .28em; text-transform: uppercase; }
.main-nav { display: flex; gap: 48px; }
.main-nav a { color: rgb(10 10 10 / .42); font-size: 14px; letter-spacing: .12em; transition: color .3s; }
.main-nav a:hover, .main-nav a.is-active { color: var(--foreground); }
.menu-button { display: none; width: 28px; padding: 5px 4px; border: 0; background: transparent; }
.menu-button span { display: block; height: 1px; margin: 5px 0; background: currentColor; transition: transform .3s, opacity .3s; }
.has-overlay-header .site-header:not(.is-scrolled) { border-color: transparent; color: #fff; background: transparent; backdrop-filter: none; }
.has-overlay-header .site-header:not(.is-scrolled) .main-nav a { color: rgb(255 255 255 / .6); }
.has-overlay-header .site-header:not(.is-scrolled) .main-nav a:hover, .has-overlay-header .site-header:not(.is-scrolled) .main-nav a.is-active { color: #fff; }

.hero { position: relative; height: max(640px, 65dvh); overflow: hidden; background: #000; }
.hero-slides, .hero-slide { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-slide { object-fit: cover; opacity: 0; transition: opacity 1s ease; }
.hero-slide.is-active { opacity: 1; }
.hero-dots { position: absolute; z-index: 2; bottom: 38px; left: 50%; display: flex; gap: 8px; transform: translateX(-50%); }
.hero-dots span { width: 6px; height: 6px; border-radius: 99px; background: rgb(255 255 255 / .35); transition: width .5s, background .5s; }
.hero-dots span.is-active { width: 24px; background: rgb(255 255 255 / .82); }

.section--works { padding-top: 140px; }
.work-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; margin-top: 88px; }
.work-card { display: block; }
.work-card[hidden] { display: none; }
.work-card-media { position: relative; aspect-ratio: 1; overflow: hidden; background: #f3f3f3; }
.work-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease); }
.work-card:hover img { transform: scale(1.04); }
.work-card-shade { position: absolute; inset: 0; background: linear-gradient(to top, rgb(0 0 0 / .76), rgb(0 0 0 / .22) 48%, transparent); opacity: 0; transition: opacity .5s; }
.work-card-copy { position: absolute; inset: auto 0 0; padding: 32px; color: #fff; opacity: 0; transform: translateY(12px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
.work-card:hover .work-card-shade, .work-card:hover .work-card-copy { opacity: 1; transform: none; }
.work-card-copy p, .work-card-copy span { margin: 0; color: rgb(255 255 255 / .62); font-size: 11px; letter-spacing: .14em; }
.work-card-copy h3 { margin: 7px 0 10px; font-size: clamp(20px, 2vw, 30px); font-weight: 300; line-height: 1.25; }

.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 88px; background: var(--border); }
.service-grid article { padding: 48px; background: var(--surface); transition: background .4s; }
.service-grid article:hover { background: var(--background); }
.service-grid h3, .three-grid h3 { margin: 0; font-size: 15px; font-weight: 300; letter-spacing: .04em; }
.service-grid p, .three-grid p { margin: 20px 0 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.clients { text-align: center; }
.clients-title { color: var(--muted); font-size: 14px; letter-spacing: .14em; }
.client-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 48px 24px; margin-top: 64px; }
.client-grid span { color: rgb(10 10 10 / .25); font-size: 11px; letter-spacing: .18em; }
.cta { padding-block: 160px; background: var(--foreground); color: var(--background); text-align: center; }
.cta h2 { max-width: 760px; margin: 0 auto; font-size: clamp(36px, 5vw, 68px); font-weight: 300; letter-spacing: -.04em; line-height: 1.18; }
.cta p { margin: 28px 0 0; color: rgb(255 255 255 / .52); font-size: 14px; }
.button { display: inline-block; margin-top: 48px; padding: 16px 42px; border: 1px solid var(--foreground); background: transparent; font-size: 13px; letter-spacing: .14em; transition: background .35s, color .35s; }
.button:hover { background: var(--foreground); color: var(--background); }
.button--light { border-color: rgb(255 255 255 / .3); }
.button--light:hover { background: #fff; color: #0a0a0a; }

.filters { display: flex; flex-wrap: wrap; gap: 18px 36px; margin-top: 88px; padding-bottom: 28px; border-bottom: 1px solid var(--border); }
.filters button { padding: 0; border: 0; background: transparent; color: var(--muted); font-size: 14px; letter-spacing: .12em; }
.filters button:hover, .filters button.is-active { color: var(--foreground); }
.filters + .work-grid { margin-top: 64px; }

.intro-copy { max-width: 760px; margin-top: 72px; color: var(--muted); font-size: 18px; line-height: 1.9; }
.intro-copy p + p { margin-top: 28px; }
.three-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 64px; margin-top: 88px; }
.capability-grid ul { margin: 28px 0 0; padding: 0; list-style: none; }
.capability-grid li { margin-top: 8px; color: var(--muted); font-size: 14px; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 128px; }
.contact-list { margin: 64px 0 0; }
.contact-list div + div { margin-top: 32px; }
.contact-list dt, .contact-form label { color: var(--muted); font-size: 11px; letter-spacing: .12em; }
.contact-list dd { margin: 8px 0 0; color: var(--foreground); font-size: 14px; }
.contact-form { display: flex; flex-direction: column; gap: 34px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.contact-form label { display: flex; flex-direction: column; gap: 10px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 13px 0; border: 0; border-bottom: 1px solid var(--border); border-radius: 0; outline: 0; background: transparent; font-size: 14px; letter-spacing: 0; resize: vertical; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--foreground); }
.contact-form .button { align-self: flex-start; margin-top: 4px; }
.form-note { margin: -16px 0 0; color: var(--muted); font-size: 12px; }

.case-title { padding-bottom: 64px; }
.case-title h1, .case-hero h1 { max-width: 14em; margin: 34px 0 0; font-size: clamp(34px, 6vw, 72px); font-weight: 300; letter-spacing: -.04em; line-height: 1.15; }
.case-hero { position: relative; height: 100dvh; min-height: 560px; color: #fff; }
.case-hero video { width: 100%; height: 100%; object-fit: cover; }
.case-hero-shade { position: absolute; inset: 0; background: linear-gradient(to top, rgb(0 0 0 / .72), transparent 65%); }
.case-hero-copy { position: absolute; inset: auto 0 72px; }
.case-hero-copy a { color: rgb(255 255 255 / .58); font-size: 13px; letter-spacing: .12em; }
.case-description { padding-bottom: 70px; }
.case-description p { max-width: 800px; margin: 0; font-size: 17px; line-height: 1.9; }
.case-gallery { padding-bottom: 120px; }
.gallery-item { margin: 0; background: var(--surface); opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.gallery-item + .gallery-item { margin-top: 42px; }
.gallery-item.is-visible { opacity: 1; transform: none; }
.gallery-item img, .gallery-item video { width: 100%; height: auto; }
.not-found { min-height: 70vh; text-align: center; }
.not-found h1 { margin: 16px 0 0; font-size: clamp(36px, 6vw, 72px); font-weight: 300; }

.site-footer { padding-block: 80px 36px; border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 1fr auto auto; gap: 80px; align-items: end; }
.footer-brand { margin: 0; }
.footer-tagline { max-width: 320px; margin: 14px 0 0; color: var(--muted); font-size: 14px; }
.footer-nav { display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.footer-contact { color: var(--muted); font-size: 14px; }
.footer-contact p { margin: 6px 0 0; }
.copyright { margin: 72px 0 0; color: rgb(107 107 107 / .65); font-size: 11px; letter-spacing: .12em; }

@media (max-width: 1024px) {
  .section { padding-block: 96px; }
  .page-top { padding-top: calc(var(--header-height) + 88px); }
  .work-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 64px; }
  .service-grid { margin-top: 64px; }
  .contact-grid { gap: 64px; }
}

@media (max-width: 720px) {
  .container { width: min(100% - 32px, 1600px); }
  .section { padding-block: 68px; }
  .page-top { padding-top: calc(var(--header-height) + 58px); }
  .main-nav { position: fixed; inset: var(--header-height) 0 auto; display: none; padding: 22px 16px 28px; border-top: 1px solid var(--border); background: #fff; color: var(--foreground); }
  .main-nav.is-open { display: block; }
  .main-nav a, .has-overlay-header .site-header:not(.is-scrolled) .main-nav a { display: block; padding: 12px 0; color: var(--foreground); }
  .menu-button { display: block; }
  .menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .hero { height: auto; min-height: 0; aspect-ratio: 35 / 13; margin-top: 0; }
  .hero-dots { bottom: 10px; }
  .hero-dots span { height: 4px; width: 4px; }
  .hero-dots span.is-active { width: 18px; }
  .section--works { padding-top: 22px; }
  .heading-row { align-items: start; flex-direction: column; gap: 10px; }
  .work-grid { grid-template-columns: 1fr; gap: 18px; margin-top: 28px; }
  .work-card-copy { padding: 22px; opacity: 1; transform: none; }
  .work-card-shade { opacity: 1; }
  .service-grid, .three-grid, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
  .service-grid, .three-grid { margin-top: 48px; }
  .service-grid article { padding: 32px; }
  .client-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; margin-top: 44px; }
  .cta { padding-block: 90px; }
  .filters { margin-top: 52px; gap: 14px 24px; }
  .filters + .work-grid { margin-top: 36px; }
  .intro-copy { margin-top: 52px; font-size: 16px; }
  .contact-grid { gap: 72px; }
  .form-row { grid-template-columns: 1fr; gap: 34px; }
  .case-title { padding-bottom: 40px; }
  .case-description { padding-bottom: 48px; }
  .case-description p { font-size: 15px; }
  .case-gallery .container { width: 100%; }
  .gallery-item + .gallery-item { margin-top: 18px; }
  .site-footer { padding-top: 60px; }
  .footer-grid { gap: 36px; }
  .copyright { margin-top: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .gallery-item { opacity: 1; transform: none; }
}