:root {
  --bg: #f0f1fa;
  --fg: #0b0b0c;
  --muted: #5c5e6a;
  --line: rgba(11, 11, 12, 0.12);
  --pad: clamp(20px, 3.2vw, 28px);
  --nav: 96px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --frame-radius: 18px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
html.lenis { height: auto; }
::-webkit-scrollbar { width: 0; height: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: "Inter Tight", "Segoe UI", sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.45;
}
html[lang="zh-Hans"] body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
button, a { color: inherit; }
button { font: inherit; background: none; border: 0; cursor: pointer; }
a { text-decoration: none; }
img, video { display: block; max-width: 100%; }
canvas { display: block; }

.loader {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: #000;
  color: #fff;
  pointer-events: none;
  transition: opacity 0.55s var(--ease), visibility 0.55s;
}
.loader.done {
  opacity: 0;
  visibility: hidden;
}
.loader-bar {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 88px;
  height: 3px;
  background: #2a2a2a;
  transform: translate(-50%, -50%);
  overflow: hidden;
}
.loader-bar span {
  display: block;
  height: 100%;
  width: 100%;
  background: #fff;
  transform: scaleX(0);
  transform-origin: left center;
}
.loader-count {
  position: absolute;
  left: var(--pad);
  bottom: 18px;
  font-size: clamp(42px, 8vw, 72px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
body.is-loading { overflow: hidden; }

.nav {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 28px var(--pad) 0;
  pointer-events: none;
}
.nav a, .nav button, .nav .lang { pointer-events: auto; }
.mark {
  font-size: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  mix-blend-mode: difference;
}
.nav-end { display: flex; align-items: center; gap: 14px; }
.lang { display: flex; gap: 8px; font-size: 13px; mix-blend-mode: difference; }
.lang button { opacity: 0.35; }
.lang button[aria-pressed="true"] { opacity: 1; }
.menu-dot {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: #e4e6ef;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.menu-dot i {
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #0b0b0c;
}

.menu {
  position: fixed;
  inset: 0;
  z-index: 45;
  background: #f0f1fa;
  padding: 18vh var(--pad) 8vh;
  display: grid;
  align-content: start;
  gap: 0.2rem;
  visibility: hidden;
  pointer-events: none;
}
.menu.is-open { visibility: visible; pointer-events: auto; }
.menu-links a {
  position: relative;
  display: block;
  overflow: hidden;
  height: 0.96em;
  font-size: clamp(3.8rem, 11vw, 8rem);
  line-height: 0.96;
  letter-spacing: -0.045em;
}
.menu-links a span {
  display: block;
  transition: transform 0.55s var(--ease);
}
.menu-links a:hover span { transform: translateY(-100%); }
.menu-talk {
  margin-top: 4vh;
  display: grid;
  place-items: center;
  height: 134px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 16px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero { height: 180vh; }
.hero-sticky {
  position: sticky;
  top: 0;
  height: 100svh;
  overflow: hidden;
  background: #12141c;
}
#scene {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  max-width: none;
}
.hero-hole {
  position: absolute;
  z-index: 1;
  pointer-events: none;
  border-radius: var(--frame-radius);
  box-shadow: 0 0 0 200vmax var(--bg);
}
.hero-top,
.hero-bot {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 2;
  overflow: hidden;
  background: var(--bg);
  pointer-events: none;
}
.hero-top { top: 0; }
.hero-bot {
  bottom: 0;
  display: flex;
  align-items: center;
}
.hero-title {
  position: relative;
  z-index: 2;
  margin: 0;
  padding: calc(var(--nav) - 14px) var(--pad) 16px;
  font-size: clamp(32px, 6vw, 74px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  pointer-events: none;
  will-change: transform;
  transform-origin: left top;
}
html[lang="zh-Hans"] .hero-title {
  letter-spacing: 0;
  line-height: 1.22;
}
.scroll-cue {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 0 var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  pointer-events: none;
}

.statement, .work, .method, .contact {
  padding-left: var(--pad);
  padding-right: var(--pad);
}
.statement { padding-top: 8vh; padding-bottom: 10vh; }
.giant {
  margin: 0;
  font-size: clamp(3.6rem, 13.8vw, 10.6rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.045em;
}
.giant .line {
  display: block;
  overflow: hidden;
}
.giant .line > span {
  display: block;
  transform: translate3d(0, 110%, 0);
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.giant.is-in .line > span { transform: translate3d(0, 0, 0); }
.giant.is-in .line:nth-child(2) > span { transition-delay: 0.1s; }
.giant.is-in .line:nth-child(3) > span { transition-delay: 0.18s; }
.giant.tight { letter-spacing: -0.05em; }
html[lang="zh-Hans"] .giant {
  letter-spacing: 0;
  line-height: 1.12;
  font-size: clamp(2.6rem, 10vw, 7.2rem);
}
.statement-body {
  max-width: 46rem;
  margin: 2.2rem 0 0;
  font-size: 16px;
  line-height: 1.5;
  color: var(--muted);
}
.pill {
  display: inline-flex;
  align-items: center;
  margin-top: 1.8rem;
  padding: 0.85rem 1.15rem;
  border: 1px solid var(--fg);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.offer {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.4rem;
  margin-top: 12vh;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}
.offer h3 {
  margin: 0.35rem 0 0.7rem;
  font-size: clamp(1.6rem, 2.2vw, 2.1rem);
  font-weight: 500;
  letter-spacing: -0.03em;
}
.offer p { margin: 0; color: var(--muted); }
.idx {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.work { padding-top: 6vh; padding-bottom: 8vh; }
.work .giant { margin-bottom: 1.2rem; }
.caps {
  margin: 0 0 4vh;
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  max-width: 46rem;
}
.work-list { display: grid; gap: 4.8vh; }
.work-card {
  display: grid;
  gap: 0.85rem;
  text-align: left;
  width: 100%;
  color: inherit;
  opacity: 0;
  transform: translate3d(0, 56px, 0);
  transition: transform 1.05s var(--ease), opacity 0.7s var(--ease);
}
.work-card.is-in {
  opacity: 1;
  transform: none;
}
.work-visual {
  width: 100%;
  aspect-ratio: 16 / 10.4;
  border-radius: 15px;
  overflow: hidden;
  background: #12141c;
  position: relative;
  transform: translateZ(0);
}
.work-visual .plus {
  position: absolute;
  width: 42%;
  aspect-ratio: 1;
  transform: rotate(var(--r, 18deg));
}
.work-visual .plus::before,
.work-visual .plus::after {
  content: "";
  position: absolute;
  inset: 38% 0;
  background: var(--c, #f3ecdf);
  border-radius: 8%;
}
.work-visual .plus::after {
  inset: 0 38%;
}
.plate-film { background: radial-gradient(circle at 40% 30%, #1a2a20, #0c1014 70%); }
.plate-film .p1 { --c: #f3ecdf; --r: -18deg; left: -8%; top: 12%; width: 58%; }
.plate-film .p2 { --c: #1f7a3a; --r: 28deg; right: -6%; top: -10%; width: 46%; }
.plate-film .p3 { --c: #161616; --r: 8deg; left: 28%; bottom: -18%; width: 50%; }
.plate-glass { background: linear-gradient(180deg, #d7deea, #1b2a1e); }
.plate-glass .p1 { --c: #f7f4ee; --r: 12deg; left: 8%; top: 6%; width: 54%; }
.plate-glass .p2 { --c: #6a7a68; --r: -22deg; right: -12%; bottom: -8%; width: 48%; }
.plate-branch { background: #0e140f; }
.plate-branch .p1 { --c: #1f3a24; --r: 32deg; left: -10%; top: -8%; width: 62%; }
.plate-branch .p2 { --c: #c45a2c; --r: -14deg; right: 8%; bottom: 6%; width: 36%; }
.plate-list { background: #15110d; }
.plate-list .p1 { --c: #f3ecdf; --r: 6deg; left: 18%; top: 10%; width: 44%; }
.plate-list .p2 { --c: #2a241c; --r: -26deg; right: -8%; bottom: -12%; width: 52%; }
.work-card:hover .work-visual .plus { filter: brightness(1.08); }
.work-kind {
  margin: 0.2rem 0 0;
  font-size: clamp(14px, 2.5vw, 20px);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.work-title {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-size: clamp(2.1rem, 6.5vw, 5.1rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}
.work-title em {
  font-style: normal;
  font-size: 0.72em;
  transform: translateY(-0.08em);
}
.work-title .name {
  display: block;
  overflow: hidden;
  height: 1.05em;
}
.work-title .name span {
  display: block;
  transition: transform 0.55s var(--ease);
}
.work-card:hover .work-title .name span { transform: translateY(-100%); }
html[lang="zh-Hans"] .work-title { letter-spacing: 0; line-height: 1.18; }

.method { padding-bottom: 12vh; }
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 4vh;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
}
.pillars h3, .skills h3 {
  margin: 0 0 0.7rem;
  font-size: 1.45rem;
  font-weight: 500;
}
.pillars p { margin: 0; color: var(--muted); }
.specimen {
  margin: 7vh 0;
  padding: 0 0 0 1.1rem;
  border-left: 2px solid var(--fg);
}
.specimen figcaption {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.specimen pre {
  margin: 0.7rem 0 0;
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 18px;
  line-height: 1.55;
}
.skills ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}
.skills li {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  font-size: 14px;
}

.contact {
  min-height: 80vh;
  display: grid;
  align-content: center;
  padding-top: 10vh;
  padding-bottom: 12vh;
}
.email {
  display: inline-block;
  margin-top: 2.2rem;
  font-size: clamp(1.6rem, 4vw, 3.2rem);
  letter-spacing: -0.04em;
  border-bottom: 1px solid var(--fg);
}
.fine { color: var(--muted); margin-top: 1rem; }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem var(--pad) 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.case { position: fixed; inset: 0; z-index: 50; }
.case[hidden] { display: none; }
.case-dim { position: absolute; inset: 0; background: rgba(11, 11, 12, 0.28); }
.case-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(720px, 100%);
  overflow: auto;
  background: #fff;
  padding: 5vh var(--pad) 8vh;
}
.case-heading {
  margin: 0.4rem 0 0.8rem;
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.05;
}
.case-meta, .case-role { color: var(--muted); }
.case-media { margin: 1.4rem 0; }
.case-media .work-visual { aspect-ratio: 16 / 10; }
.case-summary { font-size: 1.1rem; }
.text-btn { letter-spacing: 0.14em; text-transform: uppercase; font-size: 12px; }
.next { margin-top: 2rem; border-bottom: 1px solid var(--fg); }

:focus-visible { outline: 1px solid #0b0b0c; outline-offset: 3px; }

@media (max-width: 640px) {
  .offer, .pillars { grid-template-columns: 1fr; }
  .hero { height: 165vh; }
}

@media (prefers-reduced-motion: reduce) {
  .hero { height: auto; }
  .hero-sticky { position: relative; height: auto; min-height: 100svh; }
  .giant .line > span,
  .work-card { transform: none; opacity: 1; transition: none; }
  .loader { display: none; }
  body.is-loading { overflow: auto; }
}