:root {
  color-scheme: light;
  --black: #000;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --quiet: #86868b;
  --surface: #f5f5f7;
  --surface-2: #fbfbfd;
  --white: #fff;
  --blue: #0071e3;
  --blue-hover: #0077ed;
  --line: rgba(0, 0, 0, 0.1);
  --dark-line: rgba(255, 255, 255, 0.16);
  --radius-xl: 34px;
  --page-gutter: max(24px, 6vw);
  --content-width: 1200px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.47;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.menu-open { overflow: hidden; }
::selection { color: var(--white); background: var(--blue); }
a { color: inherit; text-decoration: none; }
a, button { touch-action: manipulation; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, p { margin-top: 0; }
section[id] { scroll-margin-top: 48px; }

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: -80px;
  left: 20px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--blue);
  border-radius: 999px;
  transition: top 180ms ease;
}
.skip-link:focus { top: 14px; }

.scroll-progress {
  position: fixed;
  z-index: 90;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  pointer-events: none;
}
.scroll-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left center;
}

.site-header {
  position: fixed;
  z-index: 80;
  top: 0;
  left: 0;
  right: 0;
  height: 52px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(0, 0, 0, 0.62);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: saturate(180%) blur(22px);
  -webkit-backdrop-filter: saturate(180%) blur(22px);
  transition: color 240ms ease, background 240ms ease, border-color 240ms ease;
}
.site-header.is-light {
  color: rgba(29, 29, 31, 0.92);
  background: rgba(255, 255, 255, 0.76);
  border-color: rgba(0, 0, 0, 0.08);
}
.nav-shell {
  width: min(calc(100% - 40px), 1024px);
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.brand-mark {
  width: 22px;
  height: 22px;
  display: block;
  flex-shrink: 0;
}
.brand-mark svg {
  display: block;
  width: 22px;
  height: 22px;
}
.site-nav { height: 100%; display: flex; align-items: center; gap: clamp(22px, 3.2vw, 38px); }
.site-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: inherit;
  font-size: 12px;
  opacity: 0.78;
  transition: opacity 180ms ease;
}
.site-nav a:hover { opacity: 1; }
.site-nav .nav-contact { opacity: 1; }
.menu-toggle { display: none; }

.hero {
  min-height: 100svh;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 112px var(--page-gutter) 44px;
  color: var(--white);
  background:
    radial-gradient(circle at 50% 72%, rgba(34, 98, 255, 0.22), transparent 28%),
    linear-gradient(180deg, #000 0%, #050508 72%, #10101a 100%);
}
.hero-copy {
  position: relative;
  z-index: 3;
  align-self: start;
  width: min(100%, 980px);
  margin: 4.5vh auto 0;
  text-align: center;
  animation: hero-enter 1.1s var(--ease-out) both;
}
.eyebrow, .section-label, .card-index, .company-en {
  margin-bottom: 20px;
  color: var(--quiet);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: 1.3;
  text-transform: uppercase;
}
.hero .eyebrow { color: #a1a1a6; }
.hero h1 {
  margin-bottom: 28px;
  font-size: clamp(3.5rem, 8vw, 7.65rem);
  font-weight: 650;
  letter-spacing: -0.072em;
  line-height: 0.95;
}
.hero h1 span {
  color: transparent;
  background: linear-gradient(95deg, #fff 5%, #b9c8ff 44%, #78a5ff 72%, #d5d8ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-summary {
  max-width: 600px;
  margin: 0 auto 25px;
  color: #a1a1a6;
  font-size: clamp(18px, 2vw, 23px);
  font-weight: 400;
  letter-spacing: -0.025em;
}
.hero-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 22px; }
.text-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--blue);
  font-size: 17px;
  transition: color 180ms ease;
}
.text-link:hover { color: var(--blue-hover); text-decoration: underline; text-underline-offset: 4px; }
.text-link svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.text-link-light { color: #2997ff; }
.text-link-light:hover { color: #63b4ff; }

.hero-stage {
  position: absolute;
  z-index: 1;
  left: 50%;
  bottom: -24%;
  width: min(940px, 100vw);
  aspect-ratio: 1.6;
  transform: translateX(-50%);
  animation: stage-enter 1.3s 100ms var(--ease-out) both;
}
.hero-aura {
  position: absolute;
  inset: 8% 12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(73, 128, 255, 0.42), rgba(90, 50, 200, 0.12) 44%, transparent 72%);
  filter: blur(42px);
  animation: aura-breathe 5s ease-in-out infinite alternate;
}
.hero-orb {
  position: absolute;
  left: 50%;
  top: 49%;
  width: min(50vw, 500px);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 27%, rgba(255, 255, 255, 0.95) 0 1%, rgba(174, 210, 255, 0.48) 8%, transparent 22%),
    radial-gradient(circle at 65% 70%, #2a64ff 0, #16338f 27%, transparent 56%),
    conic-gradient(from 210deg, #030b32, #254dd5, #a6bcff, #30236f, #030b32);
  box-shadow:
    0 0 2px rgba(255, 255, 255, 0.9) inset,
    0 0 70px rgba(76, 116, 255, 0.35),
    0 42px 90px rgba(0, 0, 0, 0.72);
  animation: orb-float 6s ease-in-out infinite alternate;
}
.orb-surface {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: inherit;
  background:
    repeating-radial-gradient(circle at 50% 120%, transparent 0 24px, rgba(255, 255, 255, 0.11) 25px 26px),
    linear-gradient(135deg, rgba(255, 255, 255, 0.32), transparent 34%);
  mix-blend-mode: screen;
}
.orb-surface::after {
  content: "";
  position: absolute;
  inset: -30%;
  background: linear-gradient(105deg, transparent 35%, rgba(255, 255, 255, 0.33) 48%, transparent 58%);
  transform: translateX(-45%) rotate(15deg);
  animation: orb-shine 6s ease-in-out infinite;
}
.orb-ring {
  position: absolute;
  left: 50%;
  top: 50%;
  border: 1px solid rgba(167, 196, 255, 0.44);
  border-radius: 50%;
}
.orb-ring-one { width: 138%; height: 42%; transform: translate(-50%, -50%) rotate(-16deg); }
.orb-ring-two { width: 44%; height: 138%; transform: translate(-50%, -50%) rotate(42deg); }
.orb-core {
  position: absolute;
  left: 50%;
  top: 50%;
  display: flex;
  gap: 4px;
  padding: 12px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 50%;
  background: rgba(2, 8, 36, 0.6);
  backdrop-filter: blur(8px);
}
.orb-core i { width: 4px; height: 4px; border-radius: 50%; background: #dbe7ff; }
.signal-card {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 152px;
  padding: 11px 13px;
  color: rgba(255, 255, 255, 0.74);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(18px);
  font-size: 9px;
  letter-spacing: 0.12em;
}
.signal-card b { color: #fff; font-size: 11px; }
.signal-card-a { left: 4%; top: 38%; }
.signal-card-b { right: 3%; top: 28%; }
.signal-card-c { right: 10%; bottom: 10%; }
.hero-footnote {
  position: absolute;
  z-index: 2;
  bottom: 25px;
  left: 50%;
  margin: 0;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.42);
  font-size: 9px;
  letter-spacing: 0.16em;
  white-space: nowrap;
}

.section-space { padding: clamp(100px, 12vw, 176px) var(--page-gutter); }
.section-heading { max-width: 930px; margin: 0 auto 76px; text-align: center; }
.section-heading-wide { max-width: var(--content-width); text-align: left; }
.section-label { color: var(--blue); }
.section-heading h2, .approach-intro h2, .company-copy h2, .connect h2 {
  margin-bottom: 26px;
  font-size: clamp(2.75rem, 6vw, 6rem);
  font-weight: 650;
  letter-spacing: -0.062em;
  line-height: 1.02;
}
.section-heading > p:last-child {
  max-width: 650px;
  margin: 0 auto;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 24px);
  letter-spacing: -0.026em;
}

.overview { background: var(--white); }
.principle-row {
  max-width: var(--content-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.principle-row div { min-height: 154px; padding: 32px; border-right: 1px solid var(--line); }
.principle-row div:last-child { border-right: 0; }
.principle-row strong { display: block; margin-bottom: 9px; font-size: 26px; letter-spacing: -0.04em; }
.principle-row span { color: var(--muted); font-size: 15px; }

.capabilities { background: var(--surface); }
.capability-grid {
  max-width: var(--content-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}
.capability-card {
  min-height: 620px;
  position: relative;
  overflow: hidden;
  padding: clamp(32px, 4.3vw, 58px);
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.025);
}
.capability-feature, .capability-supply { grid-column: 1 / -1; min-height: 690px; }
.card-copy { position: relative; z-index: 2; max-width: 570px; }
.card-index { margin-bottom: 18px; color: var(--quiet); }
.capability-card h3 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4vw, 4.1rem);
  font-weight: 650;
  letter-spacing: -0.055em;
  line-height: 1.02;
}
.capability-card .card-copy > p:last-child {
  max-width: 480px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
}
.capability-feature { color: var(--white); background: #000; }
.capability-feature .card-index, .capability-feature .card-copy > p:last-child { color: #a1a1a6; }
.feature-visual { position: absolute; inset: 0; }
.feature-glow {
  position: absolute;
  right: -4%;
  bottom: -20%;
  width: min(70vw, 760px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, #b9d4ff 0 2%, #467dff 13%, #254bd2 30%, #151442 53%, transparent 70%);
  filter: saturate(118%);
}
.feature-disc {
  position: absolute;
  right: clamp(5%, 8vw, 13%);
  bottom: 10%;
  width: min(35vw, 390px);
  aspect-ratio: 1;
  display: grid;
  place-content: center;
  grid-template-columns: repeat(3, 7px);
  gap: 7px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  box-shadow: 0 0 60px rgba(100, 145, 255, 0.35), inset 0 0 45px rgba(255, 255, 255, 0.13);
}
.feature-disc i { width: 7px; height: 7px; border-radius: 50%; background: #e8efff; }
.feature-line { position: absolute; right: -5%; bottom: 33%; width: 62%; height: 1px; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent); }
.feature-line-a { transform: rotate(-12deg); }
.feature-line-b { transform: rotate(18deg); }

.capability-system { background: linear-gradient(145deg, #e8f2ff, #f7faff 66%); }
.system-visual { position: absolute; left: 10%; right: 10%; bottom: 8%; height: 43%; }
.system-line { position: absolute; height: 1px; background: linear-gradient(90deg, transparent, rgba(0, 113, 227, 0.42), transparent); }
.line-one { left: 0; right: 0; top: 42%; transform: rotate(14deg); }
.line-two { left: 8%; right: 4%; top: 52%; transform: rotate(-21deg); }
.node { position: absolute; width: 18px; height: 18px; border: 5px solid rgba(255, 255, 255, 0.9); border-radius: 50%; background: var(--blue); box-shadow: 0 5px 18px rgba(0, 113, 227, 0.22); }
.node-one { left: 5%; top: 25%; }
.node-two { right: 8%; top: 4%; }
.node-three { left: 42%; bottom: 10%; }
.node-four { right: 22%; bottom: 12%; background: #8bbcff; }

.capability-research { color: var(--white); background: linear-gradient(145deg, #19191b, #030303); }
.capability-research .card-index, .capability-research .card-copy > p:last-child { color: #a1a1a6; }
.research-visual {
  position: absolute;
  left: 50%;
  bottom: 10%;
  width: 78%;
  height: 34%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  transform: translateX(-50%);
  border-top: 1px solid var(--dark-line);
  border-bottom: 1px solid var(--dark-line);
}
.research-visual span { font-size: clamp(3rem, 7vw, 6.4rem); font-weight: 200; letter-spacing: -0.08em; }
.research-visual i { width: 72px; height: 1px; background: linear-gradient(90deg, transparent, #6fa8ff, transparent); }
.research-visual small { position: absolute; bottom: 12px; color: #6e6e73; font-size: 9px; letter-spacing: 0.15em; }

.capability-exchange { background: linear-gradient(160deg, #f4f1ff, #fff 66%); }
.exchange-visual { position: absolute; left: 12%; right: 12%; bottom: 15%; display: flex; align-items: center; }
.exchange-visual i { flex: 0 0 20px; width: 20px; height: 20px; border: 5px solid #fff; border-radius: 50%; background: #7a5cff; box-shadow: 0 5px 20px rgba(87, 62, 214, 0.2); }
.exchange-visual i:last-child { background: var(--blue); }
.exchange-visual span { flex: 1; height: 1px; background: linear-gradient(90deg, #a99aff, #8abaff); }

.capability-supply { min-height: 480px; background: var(--white); }
.capability-supply .card-copy { max-width: 650px; }
.supply-visual {
  position: absolute;
  right: clamp(34px, 7vw, 100px);
  top: 50%;
  width: min(34vw, 340px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  transform: translateY(-50%) rotate(-8deg);
}
.supply-visual i {
  aspect-ratio: 1;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 22px;
  background: linear-gradient(145deg, #fff, #e9e9ed);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.08), inset 0 1px rgba(255, 255, 255, 0.9);
}
.supply-visual i:nth-child(2), .supply-visual i:nth-child(4), .supply-visual i:nth-child(9) { background: linear-gradient(145deg, #3488ff, #1745bf); }
.supply-visual i:nth-child(5) { background: linear-gradient(145deg, #151515, #36363a); }

.approach { color: var(--white); background: #000; }
.approach-intro { max-width: var(--content-width); margin: 0 auto 86px; display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 8vw; align-items: end; }
.approach-intro .section-label { grid-column: 1 / -1; margin-bottom: -18px; }
.section-label-dark { color: #2997ff; }
.approach-intro h2 { margin: 0; }
.approach-intro > p:last-child { margin: 0 0 8px; color: #a1a1a6; font-size: 18px; }
.approach-steps { max-width: var(--content-width); margin: 0 auto; padding: 0; list-style: none; border-top: 1px solid var(--dark-line); }
.approach-steps li {
  min-height: 220px;
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  align-items: center;
  gap: 40px;
  border-bottom: 1px solid var(--dark-line);
}
.step-number { color: #6e6e73; font-size: clamp(3.5rem, 8vw, 7.8rem); font-weight: 200; letter-spacing: -0.07em; }
.approach-steps h3 { margin-bottom: 9px; font-size: clamp(1.8rem, 3vw, 3rem); letter-spacing: -0.045em; }
.approach-steps p { max-width: 510px; margin: 0; color: #a1a1a6; }

.company {
  max-width: calc(var(--content-width) + var(--page-gutter) * 2);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 9vw;
  align-items: center;
  background: var(--white);
}
.company-mark {
  position: relative;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  color: var(--white);
  background: #000;
  border-radius: var(--radius-xl);
}
.company-mark::before { content: ""; position: absolute; width: 85%; height: 85%; border-radius: 50%; background: radial-gradient(circle at 65% 30%, #7cb2ff, #2548d5 27%, #3b1675 57%, transparent 70%); filter: blur(12px); opacity: 0.9; }
.company-mark span { position: relative; z-index: 2; font-size: clamp(6rem, 13vw, 12rem); font-weight: 650; letter-spacing: -0.09em; }
.company-mark i { position: absolute; z-index: 1; left: 12%; right: 12%; height: 1px; background: rgba(255, 255, 255, 0.28); }
.company-mark i:nth-of-type(1) { top: 32%; transform: rotate(12deg); }
.company-mark i:nth-of-type(2) { top: 50%; transform: rotate(-18deg); }
.company-mark i:nth-of-type(3) { top: 68%; transform: rotate(7deg); }
.company-copy h2 { margin-bottom: 12px; font-size: clamp(2.7rem, 5vw, 5rem); }
.company-en { margin-bottom: 30px; color: var(--blue); }
.company-description { max-width: 670px; color: var(--muted); font-size: clamp(18px, 2vw, 24px); letter-spacing: -0.026em; }
.company dl { margin: 44px 0 0; border-top: 1px solid var(--line); }
.company dl div { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 17px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.company dt { color: var(--quiet); }
.company dd { margin: 0; }

.connect { padding: clamp(108px, 14vw, 190px) var(--page-gutter); color: var(--white); background: #000; }
.connect-inner { max-width: 1040px; margin: 0 auto; text-align: center; }
.connect h2 { margin-bottom: 26px; font-size: clamp(3.5rem, 8vw, 8rem); }
.connect-inner > p:not(.section-label) { margin-bottom: 38px; color: #a1a1a6; font-size: clamp(18px, 2vw, 24px); }
.contact-button {
  min-height: 56px;
  display: inline-flex;
  align-items: center;
  gap: 20px;
  padding: 0 24px;
  color: var(--white);
  background: var(--blue);
  border-radius: 999px;
  font-size: 17px;
  transition: background 180ms ease, transform 180ms ease;
}
.contact-button:hover { background: var(--blue-hover); transform: scale(1.015); }
.contact-button:active { transform: scale(0.985); }
.contact-button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.site-footer {
  min-height: 86px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px var(--page-gutter);
  color: var(--quiet);
  background: var(--surface);
  border-top: 1px solid var(--line);
  font-size: 12px;
}
.site-footer a:hover { text-decoration: underline; }

.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@keyframes hero-enter { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: none; } }
@keyframes stage-enter { from { opacity: 0; transform: translate(-50%, 50px) scale(0.94); } to { opacity: 1; transform: translateX(-50%) scale(1); } }
@keyframes aura-breathe { to { opacity: 0.66; transform: scale(1.12); } }
@keyframes orb-float { to { transform: translate(-50%, -53%); } }
@keyframes orb-shine { 0%, 25% { transform: translateX(-60%) rotate(15deg); } 70%, 100% { transform: translateX(58%) rotate(15deg); } }

@media (max-width: 980px) {
  .hero-stage { bottom: -13%; }
  .hero-orb { width: min(62vw, 470px); }
  .signal-card-a { left: 3%; }
  .signal-card-b { right: 2%; }
  .principle-row div { padding: 26px 22px; }
  .capability-card { min-height: 560px; }
  .capability-feature { min-height: 650px; }
  .capability-supply { min-height: 500px; }
  .approach-intro { grid-template-columns: 1fr; gap: 26px; }
  .approach-intro .section-label { margin-bottom: 0; }
  .company { grid-template-columns: 0.85fr 1.15fr; gap: 6vw; }
}

@media (max-width: 700px) {
  :root { --page-gutter: 20px; --radius-xl: 26px; }
  body { font-size: 16px; }
  .site-header { height: 48px; }
  .nav-shell { width: calc(100% - 32px); }
  .brand { min-height: 44px; }
  .menu-toggle {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    padding: 0;
    color: inherit;
    background: transparent;
    border: 0;
    cursor: pointer;
  }
  .menu-toggle span, .menu-toggle span::before {
    content: "";
    width: 17px;
    height: 1px;
    display: block;
    position: absolute;
    background: currentColor;
    transition: transform 220ms ease;
  }
  .menu-toggle span { transform: translateY(-3px); }
  .menu-toggle span::before { transform: translateY(6px); }
  .menu-toggle[aria-expanded="true"] span { transform: rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span::before { transform: rotate(-90deg); }
  .site-nav {
    position: fixed;
    z-index: -1;
    inset: 48px 0 auto;
    height: auto;
    max-height: 0;
    overflow: hidden;
    display: block;
    padding: 0 38px;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--line);
    opacity: 0;
    backdrop-filter: blur(24px);
    transition: max-height 300ms var(--ease-out), opacity 220ms ease, padding 300ms var(--ease-out);
  }
  .site-nav.open { max-height: 360px; padding-top: 16px; padding-bottom: 24px; opacity: 1; }
  .site-nav a { min-height: 52px; display: flex; font-size: 22px; font-weight: 600; letter-spacing: -0.035em; border-bottom: 1px solid var(--line); opacity: 1; }
  .site-nav a:last-child { border-bottom: 0; }
  .hero { min-height: 880px; padding-top: 92px; }
  .hero-copy { align-self: start; margin-top: 4vh; }
  .hero h1 { font-size: clamp(2.5rem, 10.7vw, 4.7rem); }
  .hero-summary { max-width: 330px; font-size: 18px; }
  .hero-stage { bottom: 0; width: 125vw; }
  .hero-orb { width: min(79vw, 390px); }
  .signal-card { width: 126px; padding: 9px 10px; }
  .signal-card-a { left: 14%; top: 34%; }
  .signal-card-b { right: 14%; top: 22%; }
  .signal-card-c { right: 16%; bottom: 11%; }
  .hero-footnote { bottom: 16px; }
  .section-space { padding-top: 94px; padding-bottom: 94px; }
  .section-heading { margin-bottom: 48px; text-align: left; }
  .section-heading > p:last-child { margin-left: 0; font-size: 18px; }
  .principle-row { grid-template-columns: 1fr; }
  .principle-row div { min-height: auto; padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .principle-row div:last-child { border-bottom: 0; }
  .capability-grid { grid-template-columns: 1fr; gap: 14px; }
  .capability-card, .capability-feature, .capability-supply { grid-column: auto; min-height: 530px; padding: 30px 26px; }
  .capability-feature { min-height: 620px; }
  .capability-card h3 { font-size: 2.35rem; }
  .feature-glow { right: -38%; bottom: -8%; width: 145vw; }
  .feature-disc { right: 8%; bottom: 10%; width: 64vw; }
  .capability-supply { min-height: 590px; }
  .supply-visual { top: auto; right: 13%; bottom: 8%; width: 73%; transform: rotate(-8deg); }
  .approach-intro { margin-bottom: 54px; }
  .approach-steps li { min-height: 230px; grid-template-columns: 92px 1fr; gap: 22px; }
  .step-number { font-size: 3.4rem; }
  .company { grid-template-columns: 1fr; gap: 58px; }
  .company-mark { width: min(100%, 430px); margin: 0 auto; }
  .company dl div { grid-template-columns: 96px 1fr; }
  .connect { padding-top: 108px; padding-bottom: 108px; }
  .contact-button { width: 100%; justify-content: space-between; padding: 0 20px; }
  .site-footer { min-height: 112px; flex-direction: column; align-items: flex-start; justify-content: center; gap: 7px; }
}

@media (max-width: 390px) {
  .brand-name { font-size: 12px; }
  .hero h1 { font-size: 10.7vw; }
  .hero-actions { gap: 10px; }
  .approach-steps li { grid-template-columns: 72px 1fr; }
  .step-number { font-size: 2.8rem; }
  .contact-button { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}