:root {
  --bg: #fff;
  --ink: #111;
  --muted: #5c5c5c;
  --faint: #8a8a8a;
  --line: #ececec;
  --rule: #111;
  --accent: #1f4fd8;
  --max: 1120px;
  --pad: clamp(24px, 5vw, 64px);
  --serif: "Newsreader", "Noto Serif SC", "Songti SC", serif;
  --sans: "Inter", "Noto Sans SC", "PingFang SC", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

img,
video {
  max-width: 100%;
  display: block;
}

.wrap {
  width: min(var(--max), calc(100% - var(--pad) * 2));
  margin: 0 auto;
}

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  height: 44px;
  width: auto;
}

.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name .en {
  font-size: 11px;
  letter-spacing: 0.22em;
  font-weight: 500;
}

.brand-name .zh {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.nav {
  display: flex;
  gap: 28px;
  font-size: 13px;
  color: var(--muted);
}

.nav a:hover {
  color: var(--ink);
}

.hero {
  padding: clamp(72px, 14vh, 140px) 0 96px;
}

.hero-lockup {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-lockup img {
  height: 56px;
  width: auto;
}

.hero-word .en {
  font-size: 13px;
  letter-spacing: 0.28em;
  font-weight: 500;
}

.hero-word .en-sub {
  display: none;
}

.hero-word .zh {
  margin-top: 4px;
  font-size: 20px;
  letter-spacing: 0.16em;
  font-weight: 600;
}

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(40px, 7.2vw, 84px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.12;
  max-width: 12em;
}

.hero-roles {
  margin-top: 28px;
  font-size: 16px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.hero-lead {
  margin-top: 22px;
  max-width: 32em;
  font-size: 18px;
  color: var(--muted);
  font-weight: 400;
}

.section {
  padding: 96px 0;
  border-top: 1px solid var(--line);
}

.section h2 {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 32px;
}

.prose {
  font-size: 18px;
  max-width: 40em;
  color: var(--ink);
}

.grid-2,
.grid-3 {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  background: #fff;
  padding: 32px 28px;
}

.card h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 16px;
}

.card ul,
.list {
  list-style: none;
}

.card li,
.list li {
  padding: 12px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
}

.card li:first-child,
.list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.founder {
  display: grid;
  grid-template-columns: minmax(0, 0.38fr) minmax(0, 0.62fr);
  gap: 56px;
  align-items: start;
}

.founder img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 5;
}

.founder h3 {
  font-family: var(--serif);
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 500;
  letter-spacing: -0.03em;
}

.founder .role {
  margin: 8px 0 24px;
  color: var(--faint);
  letter-spacing: 0.14em;
  font-size: 12px;
}

.values .card p {
  color: var(--muted);
  font-size: 15px;
}

.quote-list li {
  font-family: var(--serif);
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.45;
  color: var(--ink);
  padding: 20px 0;
  font-weight: 400;
}

.video-stage {
  background: #0b0b0b;
  min-height: min(56vw, 560px);
  display: grid;
  place-items: center;
}

.video-stage video {
  width: 100%;
  height: min(56vw, 560px);
  object-fit: contain;
  background: #000;
}

.video-empty {
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.18em;
  font-size: 13px;
}

.media-block p {
  margin-top: 14px;
  color: var(--faint);
  font-size: 13px;
}

.product {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 40px 0 0;
}

.product h3 {
  font-family: var(--serif);
  font-size: 36px;
  font-weight: 500;
}

.product p {
  color: var(--muted);
  margin-top: 8px;
}

.product a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid var(--ink);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.product a:hover {
  background: var(--ink);
  color: #fff;
}

.foot {
  border-top: 1px solid var(--line);
  padding: 28px 0 48px;
  font-size: 12px;
  color: var(--faint);
}

.foot a:hover {
  color: var(--ink);
}

.works a {
  color: var(--accent);
}

@media (max-width: 860px) {
  .nav {
    display: none;
  }

  .grid-2,
  .grid-3,
  .founder {
    grid-template-columns: 1fr;
  }

  .product {
    flex-direction: column;
    align-items: flex-start;
  }
}