:root {
  --ink: #0a0e0d;
  --ink-soft: #101613;
  --ink-2: #151d19;
  --paper: #f2f0e8;
  --paper-2: #e9e7dd;
  --sage: #dfe6d5;
  --lime: #d8ff4f;
  --lime-soft: #e8ff9a;
  --mint: #6ee7d8;
  --white: #f8faf3;
  --muted: #9ba39b;
  --muted-dark: #5c645c;
  --line: rgba(248, 250, 243, .13);
  --line-dark: rgba(10, 14, 13, .15);
  --font-sans: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", sans-serif;
  --font-serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
  --font-mono: "Bahnschrift", "DIN Alternate", "Arial Narrow", "Consolas", monospace;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --ease-soft: cubic-bezier(.4, 0, .2, 1);
  --container: 1360px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--ink);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-locked { overflow: hidden; }

::selection { background: var(--lime); color: var(--ink); }

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
h1, h2, h3, p, ul, blockquote { margin: 0; }
ul { padding: 0; list-style: none; }

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 24px;
  z-index: 10000;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--lime);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  transition: top .25s var(--ease);
}
.skip-link:focus { top: 18px; }

.container {
  width: min(var(--container), calc(100% - 96px));
  margin-inline: auto;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 9000;
  pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.9'/%3E%3C/svg%3E");
  mix-blend-mode: screen;
}

.scroll-progress {
  position: fixed;
  inset: 0 0 auto;
  height: 2px;
  z-index: 9200;
  pointer-events: none;
}
.scroll-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--lime);
  box-shadow: 0 0 14px rgba(216, 255, 79, .8);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  width: min(1460px, calc(100% - 36px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 9px 10px 9px 18px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 999px;
  background: rgba(10, 14, 13, .62);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  backdrop-filter: blur(20px) saturate(140%);
  transition: background .4s var(--ease-soft), border-color .4s, transform .4s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(10, 14, 13, .86);
  border-color: rgba(255, 255, 255, .18);
  transform: translateX(-50%) translateY(-2px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
}
.brand-mark {
  width: 38px;
  height: 38px;
  color: var(--lime);
  transition: transform .8s var(--ease);
}
.brand:hover .brand-mark { transform: rotate(120deg); }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-text strong {
  font-size: 15px;
  letter-spacing: .08em;
  font-weight: 700;
  color: var(--white);
}
.brand-text small {
  margin-top: 5px;
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .3em;
  color: var(--muted);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.6vw, 40px);
  margin-left: auto;
  margin-right: 12px;
}
.desktop-nav a {
  position: relative;
  padding: 8px 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: #c9cec7;
  transition: color .3s;
}
.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 3px;
  width: 100%;
  height: 1px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .45s var(--ease);
}
.desktop-nav a:hover { color: var(--white); }
.desktop-nav a:hover::after,
.desktop-nav a.is-active::after { transform: scaleX(1); transform-origin: left; }
.desktop-nav a.is-active { color: var(--lime); }

.header-actions { display: flex; align-items: center; gap: 8px; }

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 50px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1;
  cursor: pointer;
  transition: background .35s var(--ease-soft), color .35s, border-color .35s, transform .35s var(--ease);
}
.btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform .35s var(--ease);
}
.btn:hover svg { transform: translateX(4px); }
.btn:active { transform: scale(.98); }

.btn-header {
  min-height: 40px;
  padding: 0 18px;
  background: var(--lime);
  color: var(--ink);
  font-size: 12px;
}
.btn-header:hover { background: var(--lime-soft); transform: translateY(-1px); }

.btn-lime {
  background: var(--lime);
  color: var(--ink);
}
.btn-lime:hover {
  background: var(--lime-soft);
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(216, 255, 79, .16);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, .24);
  color: var(--white);
  background: rgba(255, 255, 255, .02);
}
.btn-ghost:hover {
  border-color: rgba(255, 255, 255, .5);
  background: rgba(255, 255, 255, .06);
}
.btn-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(216, 255, 79, .12);
}

.btn-dark {
  background: var(--ink);
  color: var(--white);
}
.btn-dark:hover {
  background: #1d2922;
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  position: relative;
}
.menu-toggle span {
  position: absolute;
  left: 12px;
  width: 18px;
  height: 1px;
  background: var(--white);
  transition: transform .4s var(--ease), top .4s var(--ease);
}
.menu-toggle span:first-child { top: 17px; }
.menu-toggle span:last-child { top: 24px; }
.menu-toggle[aria-expanded="true"] span:first-child { top: 21px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { top: 21px; transform: rotate(-45deg); }

/* ---------- Mobile nav ---------- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 990;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 110px 28px 40px;
  background: var(--ink);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity .45s var(--ease-soft), visibility .45s, transform .45s var(--ease);
}
.mobile-nav.is-open { opacity: 1; visibility: visible; transform: none; }
.mobile-nav nav { display: flex; flex-direction: column; }
.mobile-nav nav a {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: clamp(1.9rem, 7vw, 2.7rem);
  font-weight: 600;
  letter-spacing: -.04em;
}
.mobile-nav nav a span {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--lime);
}
.mobile-nav-foot { margin-top: 40px; }
.mobile-nav-foot p {
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}
.mobile-nav-foot .btn { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  padding: 160px 0 54px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 73% 38%, rgba(122, 154, 54, .12), transparent 48%),
    radial-gradient(ellipse at 15% 92%, rgba(110, 231, 216, .06), transparent 46%),
    var(--ink);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .028) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: radial-gradient(ellipse at 55% 45%, #000 0%, transparent 72%);
  mask-image: radial-gradient(ellipse at 55% 45%, #000 0%, transparent 72%);
  pointer-events: none;
}
.hero-aura {
  position: absolute;
  width: 52vw;
  height: 52vw;
  max-width: 850px;
  max-height: 850px;
  right: -10vw;
  top: 2%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(216, 255, 79, .09) 0%, rgba(110, 231, 216, .03) 38%, transparent 68%);
  filter: blur(12px);
  pointer-events: none;
}
#neuralCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: .5;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(420px, .94fr);
  gap: clamp(20px, 4vw, 68px);
  align-items: center;
}

.hero-copy { padding-top: 14px; }

.eyebrow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: clamp(28px, 4vh, 46px);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: #b6bdb4;
  text-transform: uppercase;
}
.eyebrow i { color: #59625a; font-style: normal; }
.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 0 rgba(216, 255, 79, .45);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(216, 255, 79, .45); }
  70% { box-shadow: 0 0 0 9px rgba(216, 255, 79, 0); }
  100% { box-shadow: 0 0 0 0 rgba(216, 255, 79, 0); }
}

.hero h1 {
  margin-left: -.055em;
  font-size: clamp(4rem, 8.5vw, 9.2rem);
  font-weight: 700;
  line-height: .95;
  letter-spacing: -.075em;
  color: var(--white);
}
.hero h1 .line { display: block; white-space: nowrap; }
.hero h1 .line-accent {
  margin-top: .04em;
  color: var(--lime);
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -.06em;
  padding-right: .08em;
}
.hero h1 .period {
  display: inline-block;
  margin-left: .04em;
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--white);
  transform: translateY(-.04em);
}

.hero-lead {
  max-width: 560px;
  margin-top: clamp(24px, 4vh, 38px);
  font-size: clamp(15px, 1.25vw, 17px);
  line-height: 1.95;
  color: #aeb6ac;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 4vh, 38px);
}
.hero-actions .btn { min-height: 54px; padding-inline: 26px; }

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 610px;
  margin-top: clamp(36px, 6vh, 62px);
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.hero-meta div { display: flex; flex-direction: column; gap: 6px; }
.hero-meta span {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .16em;
  color: #6f786f;
}
.hero-meta strong {
  font-size: 12px;
  font-weight: 500;
  color: #d4d9d1;
  letter-spacing: .03em;
}

/* Hero visual */
.hero-visual {
  position: relative;
  min-height: 610px;
  display: grid;
  place-items: center;
}
.visual-grid {
  position: absolute;
  inset: 14% 0 0;
  background-image:
    linear-gradient(rgba(216, 255, 79, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(216, 255, 79, .08) 1px, transparent 1px);
  background-size: 54px 54px;
  transform: perspective(500px) rotateX(63deg) translateY(24%);
  transform-origin: center bottom;
  -webkit-mask-image: linear-gradient(to top, #000, transparent 78%);
  mask-image: linear-gradient(to top, #000, transparent 78%);
  opacity: .6;
}
.orbital-system {
  position: relative;
  width: min(40vw, 540px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}
.ring {
  position: absolute;
  border: 1px solid rgba(216, 255, 79, .2);
  border-radius: 50%;
  animation: spin 34s linear infinite;
}
.ring::before,
.ring::after {
  content: "";
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--lime);
  opacity: .65;
}
.ring::before { top: 8%; left: 21%; }
.ring::after { bottom: 12%; right: 17%; }
.ring-1 { inset: 1%; animation-duration: 42s; }
.ring-2 {
  inset: 12%;
  border-color: rgba(110, 231, 216, .19);
  border-style: dashed;
  animation-direction: reverse;
  animation-duration: 34s;
}
.ring-3 {
  inset: 25%;
  border-color: rgba(255, 255, 255, .12);
  animation-duration: 26s;
}
.satellite {
  position: absolute;
  top: -4px;
  left: 50%;
  width: 9px;
  height: 9px;
  margin-left: -4.5px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 18px rgba(216, 255, 79, .9), 0 0 38px rgba(216, 255, 79, .5);
}
.sat-2 {
  background: var(--mint);
  width: 7px;
  height: 7px;
  box-shadow: 0 0 16px rgba(110, 231, 216, .9);
}
.sat-3 {
  background: var(--white);
  width: 5px;
  height: 5px;
  box-shadow: 0 0 12px rgba(255, 255, 255, .7);
}
@keyframes spin { to { transform: rotate(360deg); } }

.orbital-axis {
  position: absolute;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .13), transparent);
}
.axis-x { width: 92%; height: 1px; }
.axis-y {
  width: 1px;
  height: 92%;
  background: linear-gradient(transparent, rgba(255, 255, 255, .13), transparent);
}

.core {
  position: relative;
  width: 43%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  z-index: 2;
}
.core-glow {
  position: absolute;
  inset: -38%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(216, 255, 79, .2), rgba(216, 255, 79, .04) 44%, transparent 70%);
  filter: blur(16px);
  animation: breathe 6s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: .85; }
  50% { transform: scale(1.12); opacity: 1; }
}
.core-sphere {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 33% 27%, #fbffe9 0%, #e6ff86 10%, #b6db3c 28%, #567c2c 53%, #17251b 76%, #0a0e0d 100%);
  box-shadow:
    0 0 0 1px rgba(216, 255, 79, .3),
    0 0 60px rgba(216, 255, 79, .25),
    0 30px 100px rgba(0, 0, 0, .55),
    inset -26px -20px 50px rgba(0, 0, 0, .45),
    inset 12px 10px 30px rgba(255, 255, 255, .22);
}
.core-sphere::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent 0 11px, rgba(255, 255, 255, .09) 11px 12px),
    repeating-linear-gradient(90deg, transparent 0 18px, rgba(10, 14, 13, .14) 18px 19px);
  mix-blend-mode: overlay;
  opacity: .55;
}
.core-sphere::after {
  content: "";
  position: absolute;
  left: 14%;
  top: 11%;
  width: 38%;
  height: 24%;
  border-radius: 50%;
  background: rgba(255, 255, 255, .4);
  filter: blur(12px);
  transform: rotate(-32deg);
}
.core-letter {
  position: relative;
  z-index: 2;
  margin-top: -2%;
  font-family: var(--font-serif);
  font-size: clamp(4rem, 8vw, 7.2rem);
  font-weight: 700;
  line-height: 1;
  color: rgba(10, 14, 13, .82);
  text-shadow: 0 1px 0 rgba(255, 255, 255, .25);
}
.core-caption {
  position: relative;
  z-index: 2;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 7px;
  line-height: 1.5;
  letter-spacing: .2em;
  text-align: center;
  color: rgba(10, 14, 13, .72);
}
.core-scan {
  position: absolute;
  left: 0;
  right: 0;
  top: 22%;
  height: 1px;
  z-index: 3;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .65), transparent);
  animation: scan 4.6s ease-in-out infinite;
  opacity: .55;
}
@keyframes scan {
  0%, 100% { top: 20%; opacity: 0; }
  15% { opacity: .6; }
  55% { top: 79%; opacity: .4; }
  80% { opacity: 0; }
}

.node-label {
  position: absolute;
  display: grid;
  grid-template-columns: 16px auto;
  align-items: center;
  column-gap: 9px;
  color: #c5ccc2;
  z-index: 4;
}
.node-label i {
  position: relative;
  width: 16px;
  height: 16px;
  border: 1px solid rgba(216, 255, 79, .35);
  border-radius: 50%;
}
.node-label i::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--lime);
}
.node-label span {
  grid-column: 2;
  font-size: 11px;
  letter-spacing: .16em;
}
.node-label small {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .18em;
  color: #687267;
}
.node-sense { top: 8%; left: 10%; }
.node-decide { top: 30%; right: 0; }
.node-generate { bottom: 23%; left: 1%; }
.node-act { bottom: 7%; right: 13%; }

.visual-chip {
  position: absolute;
  z-index: 5;
  border: 1px solid rgba(255, 255, 255, .11);
  background: rgba(14, 21, 17, .66);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-radius: 14px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, .28);
}
.chip-location {
  top: 7%;
  right: 1%;
  min-width: 166px;
  padding: 13px 16px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.chip-kicker {
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .2em;
  color: #6f796e;
}
.chip-location strong {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--white);
}
.chip-location small {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .08em;
  color: #8e978c;
}
.chip-stack {
  right: -2%;
  bottom: 8%;
  width: 226px;
  padding: 14px 16px;
}
.stack-head {
  display: flex;
  justify-content: space-between;
  padding-bottom: 9px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .14em;
  color: #778174;
}
.stack-live { display: inline-flex; align-items: center; gap: 5px; color: var(--lime); }
.stack-live i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 8px var(--lime);
}
.chip-stack ul { margin-top: 5px; }
.chip-stack li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 0;
  font-size: 9px;
  letter-spacing: .02em;
  color: #c3cbc0;
}
.chip-stack li b {
  font-family: var(--font-mono);
  font-size: 7px;
  font-weight: 400;
  color: #657060;
}
.visual-coord {
  position: absolute;
  left: 2%;
  bottom: 1%;
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .18em;
  color: #596259;
  writing-mode: vertical-rl;
}

.hero-scroll {
  position: absolute;
  z-index: 3;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .2em;
  color: #5f685e;
}
.hero-scroll i {
  position: relative;
  width: 1px;
  height: 34px;
  background: rgba(255, 255, 255, .15);
  overflow: hidden;
}
.hero-scroll i::after {
  content: "";
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 55%;
  background: var(--lime);
  animation: scrollLine 2.2s var(--ease-soft) infinite;
}
@keyframes scrollLine {
  0% { top: -55%; }
  100% { top: 100%; }
}

/* ---------- Marquee ---------- */
.marquee {
  position: relative;
  z-index: 3;
  overflow: hidden;
  padding: 15px 0 13px;
  background: var(--lime);
  color: var(--ink);
  border-top: 1px solid rgba(10, 14, 13, .2);
  border-bottom: 1px solid rgba(10, 14, 13, .2);
}
.marquee-track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: marquee 32s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  padding: 0 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  white-space: nowrap;
}
.marquee-track b {
  font-size: 13px;
  font-weight: 400;
  opacity: .55;
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section {
  position: relative;
  padding: clamp(92px, 11vw, 168px) 0;
}
.section-top {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line-dark);
  z-index: 1;
}
.section-top.light { border-color: var(--line); }
.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .2em;
  color: #5b635b;
  text-transform: uppercase;
}
.section-label span {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 7px;
  letter-spacing: 0;
}
.section-top.light .section-label { color: #737c72; }
.section-index {
  font-family: var(--font-mono);
  font-size: clamp(3rem, 6vw, 6.8rem);
  line-height: .7;
  font-weight: 300;
  letter-spacing: -.06em;
  color: rgba(10, 14, 13, .08);
}
.section-top.light .section-index { color: rgba(255, 255, 255, .07); }

.section-title {
  font-size: clamp(2.5rem, 5.4vw, 5.7rem);
  font-weight: 600;
  line-height: 1.07;
  letter-spacing: -.065em;
}

/* ---------- About ---------- */
.about {
  background:
    radial-gradient(circle at 8% 18%, rgba(216, 255, 79, .18), transparent 22%),
    var(--paper);
  color: var(--ink);
  overflow: hidden;
}
.about::after {
  content: "";
  position: absolute;
  right: -13vw;
  top: 10%;
  width: 44vw;
  height: 44vw;
  border: 1px solid rgba(10, 14, 13, .09);
  border-radius: 50%;
  box-shadow: 0 0 0 8vw rgba(10, 14, 13, .025), 0 0 0 16vw rgba(10, 14, 13, .018);
  pointer-events: none;
}
.about-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  gap: clamp(40px, 8vw, 130px);
  padding-top: clamp(56px, 8vw, 98px);
}
.about-title { position: relative; align-self: start; }
.about-title .section-title { position: sticky; top: 138px; }
.about-stamp {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 44px;
  color: #6f766c;
}
.about-stamp svg { width: 40px; height: 40px; color: #7a8278; }
.about-stamp span {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .08em;
  line-height: 1.8;
}
.about-stamp b { font-weight: 400; color: #3f473f; }

.about-body { max-width: 690px; }
.about-lead {
  font-size: clamp(1.25rem, 2vw, 1.68rem);
  line-height: 1.65;
  letter-spacing: -.02em;
  color: #242a24;
}
.about-body > p + p {
  margin-top: 24px;
  color: #4d554d;
  font-size: 15px;
  line-height: 1.95;
}
.about-lead + p { margin-top: 32px; }

.about-quote {
  margin-top: clamp(48px, 6vw, 76px);
  padding-top: 28px;
  border-top: 1px solid var(--line-dark);
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3vw, 2.9rem);
  line-height: 1.45;
  letter-spacing: -.04em;
  color: var(--ink);
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: clamp(68px, 9vw, 120px);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}
.principles article {
  padding: 30px 34px 34px 0;
  border-right: 1px solid var(--line-dark);
}
.principles article + article { padding-left: 34px; }
.principles article:last-child { border-right: 0; padding-right: 0; }
.principles span {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .14em;
  color: #747c72;
}
.principles h3 {
  margin-top: 18px;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -.02em;
}
.principles p {
  max-width: 260px;
  margin-top: 9px;
  font-size: 13px;
  line-height: 1.8;
  color: #5c645a;
}

/* ---------- Services ---------- */
.services {
  background:
    radial-gradient(ellipse at 90% 5%, rgba(110, 231, 216, .055), transparent 35%),
    var(--ink);
  color: var(--white);
  overflow: hidden;
}
.services::before {
  content: "AI";
  position: absolute;
  right: -2vw;
  top: 8%;
  font-family: var(--font-mono);
  font-size: 30vw;
  line-height: 1;
  font-weight: 700;
  color: rgba(255, 255, 255, .018);
  letter-spacing: -.1em;
  pointer-events: none;
}
.services-head {
  display: grid;
  grid-template-columns: 1.35fr .65fr;
  align-items: end;
  gap: 40px;
  margin-top: clamp(50px, 7vw, 86px);
  margin-bottom: clamp(42px, 6vw, 70px);
}
.services-head .section-title { max-width: 900px; }
.services-head p {
  justify-self: end;
  max-width: 310px;
  padding-bottom: 8px;
  font-size: 14px;
  line-height: 1.9;
  color: #929b90;
}
.desktop-break { display: block; }

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.service-card {
  position: relative;
  min-height: 360px;
  padding: 30px 32px 28px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 20px;
  background:
    radial-gradient(550px circle at var(--mx, 50%) var(--my, 0%), rgba(216, 255, 79, .075), transparent 45%),
    linear-gradient(150deg, rgba(255, 255, 255, .045), rgba(255, 255, 255, .012));
  overflow: hidden;
  transition: background .5s var(--ease-soft), border-color .5s, transform .5s var(--ease), color .4s;
}
.service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--lime);
  opacity: 0;
  transition: opacity .45s var(--ease-soft);
  z-index: 0;
}
.service-card > * { position: relative; z-index: 1; }
.service-card:hover {
  transform: translateY(-7px);
  border-color: var(--lime);
  color: var(--ink);
}
.service-card:hover::before { opacity: 1; }
.service-card:hover p,
.service-card:hover li { color: rgba(10, 14, 13, .72); }
.service-card:hover .card-num,
.service-card:hover .card-icon { color: var(--ink); }
.service-card:hover .card-arrow { transform: translate(3px, -3px); background: var(--ink); color: var(--lime); border-color: var(--ink); }
.service-card:hover li { border-color: rgba(10, 14, 13, .16); }

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}
.card-num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  color: #6c766b;
  transition: color .4s;
}
.card-icon {
  width: 44px;
  height: 44px;
  color: var(--lime);
  opacity: .85;
  transition: color .4s;
}
.service-card h3 {
  margin-top: 54px;
  font-size: clamp(1.45rem, 2.2vw, 2.05rem);
  font-weight: 600;
  letter-spacing: -.04em;
  line-height: 1.2;
}
.service-card p {
  max-width: 420px;
  margin-top: 11px;
  font-size: 14px;
  line-height: 1.8;
  color: #949d92;
  transition: color .4s;
}
.service-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 28px;
}
.service-card li {
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: .02em;
  color: #b9c1b7;
  transition: color .4s, border-color .4s;
}
.card-arrow {
  position: absolute;
  right: 26px;
  bottom: 24px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 50%;
  font-size: 15px;
  color: #b9c1b7;
  transition: transform .4s var(--ease), background .4s, color .4s, border-color .4s;
}

.capability-line {
  display: flex;
  align-items: flex-start;
  gap: 26px;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.capability-label {
  flex: none;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .18em;
  color: #687267;
}
.capability-tags { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.capability-tags span {
  font-size: 11px;
  color: #9ca49a;
  letter-spacing: .03em;
}
.capability-tags span::before {
  content: "鈼?;
  margin-right: 7px;
  color: var(--lime);
  font-size: 8px;
}

/* ---------- Approach ---------- */
.approach {
  background: var(--paper);
  color: var(--ink);
  overflow: hidden;
}
.approach::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14%;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(10, 14, 13, .09), transparent);
}
.approach-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  padding-top: clamp(50px, 7vw, 86px);
  padding-bottom: clamp(46px, 6vw, 70px);
}
.approach-head p {
  max-width: 330px;
  padding-bottom: 10px;
  font-size: 13px;
  line-height: 1.9;
  color: #60685e;
}
.steps { border-top: 1px solid var(--line-dark); }
.step {
  display: grid;
  grid-template-columns: 78px 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 30px 12px 30px 4px;
  border-bottom: 1px solid var(--line-dark);
  transition: background .4s var(--ease-soft), padding .4s var(--ease);
}
.step:hover {
  background: rgba(255, 255, 255, .36);
  padding-left: 20px;
  padding-right: 20px;
}
.step-num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  color: #7d857a;
  align-self: start;
  padding-top: 12px;
}
.step-main {
  display: grid;
  grid-template-columns: minmax(180px, .62fr) 1fr;
  align-items: center;
  gap: 30px;
}
.step-main h3 {
  font-size: clamp(1.6rem, 2.7vw, 2.4rem);
  font-weight: 500;
  letter-spacing: -.045em;
}
.step-main p {
  max-width: 520px;
  font-size: 14px;
  line-height: 1.8;
  color: #626a60;
}
.step-tag {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .16em;
  color: #7b8378;
  border: 1px solid rgba(10, 14, 13, .16);
  border-radius: 999px;
  padding: 7px 12px;
  transition: background .4s, color .4s, border-color .4s;
}
.step:hover .step-tag { background: var(--ink); color: var(--lime); border-color: var(--ink); }

/* ---------- Ecosystem ---------- */
.ecosystem {
  background:
    radial-gradient(circle at 85% 15%, rgba(216, 255, 79, .32), transparent 30%),
    var(--sage);
  color: var(--ink);
  overflow: hidden;
}
.eco-grid {
  display: grid;
  grid-template-columns: .93fr 1.07fr;
  align-items: center;
  gap: clamp(50px, 8vw, 120px);
}
.eco-copy .section-label { margin-bottom: 42px; }
.eco-copy .section-title {
  margin-bottom: 32px;
  font-size: clamp(2.3rem, 4.55vw, 4.65rem);
}
.eco-lead {
  max-width: 560px;
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  line-height: 1.8;
  color: #303730;
}
.eco-copy > p + p {
  max-width: 560px;
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.95;
  color: #576054;
}
.eco-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 44px;
  border-top: 1px solid rgba(10, 14, 13, .17);
}
.eco-pillars div {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 19px 18px 0 0;
  border-right: 1px solid rgba(10, 14, 13, .15);
}
.eco-pillars div + div { padding-left: 18px; }
.eco-pillars div:last-child { border-right: 0; }
.eco-pillars b {
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 400;
  letter-spacing: .14em;
  color: #687163;
}
.eco-pillars span { font-size: 13px; font-weight: 600; }
.eco-pillars small { font-size: 10px; line-height: 1.7; color: #69725f; }

.eco-quote {
  margin-top: 46px;
  font-family: var(--font-serif);
  font-size: clamp(1.45rem, 2.2vw, 2.15rem);
  line-height: 1.5;
  letter-spacing: -.035em;
  color: #262d25;
}

.eco-visual { position: relative; }
.eco-frame {
  position: relative;
  border-radius: 24px;
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
  box-shadow: 0 36px 80px rgba(29, 45, 24, .2);
  transform: rotate(1.2deg);
}
.eco-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 45%, rgba(216, 255, 79, .12), transparent 55%);
  pointer-events: none;
}
.eco-frame-top,
.eco-frame-bottom {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 17px 20px;
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .14em;
  color: #8c978a;
}
.eco-frame-top { border-bottom: 1px solid rgba(255, 255, 255, .1); }
.eco-frame-bottom { border-top: 1px solid rgba(255, 255, 255, .1); }
.eco-status { display: inline-flex; align-items: center; gap: 6px; color: var(--lime); }
.eco-status i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 8px var(--lime);
}
.eco-map { width: 100%; height: auto; }
.eco-frame-bottom span:last-child { color: #657061; }

/* ---------- Contact ---------- */
.contact {
  background:
    radial-gradient(ellipse at 18% 18%, rgba(216, 255, 79, .07), transparent 36%),
    var(--ink);
  color: var(--white);
  padding-bottom: clamp(80px, 9vw, 120px);
  overflow: hidden;
}
.contact::before {
  content: "BOTING";
  position: absolute;
  left: -1vw;
  bottom: -6vw;
  font-family: var(--font-mono);
  font-size: 22vw;
  line-height: 1;
  font-weight: 700;
  letter-spacing: -.08em;
  color: rgba(255, 255, 255, .018);
  pointer-events: none;
}
.contact-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  align-items: end;
  gap: clamp(50px, 8vw, 120px);
  padding-top: clamp(50px, 7vw, 82px);
}
.contact-title {
  font-size: clamp(3.8rem, 8vw, 8.8rem);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -.075em;
}
.contact-title span {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--lime);
  letter-spacing: -.06em;
}
.contact-copy p {
  margin-top: 28px;
  font-size: 14px;
  line-height: 1.9;
  color: #9ea79c;
}
.contact-panel {
  padding: 30px 30px 26px;
  border-radius: 20px;
  background: var(--lime);
  color: var(--ink);
}
.panel-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .18em;
  color: rgba(10, 14, 13, .55);
}
.contact-panel h3 {
  margin-top: 30px;
  font-size: clamp(1.8rem, 2.6vw, 2.5rem);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -.05em;
}
.contact-panel p {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(10, 14, 13, .62);
}
.contact-panel .btn { width: 100%; margin-top: 28px; }
.panel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}
.panel-tags span {
  padding: 5px 9px;
  border: 1px solid rgba(10, 14, 13, .2);
  border-radius: 999px;
  font-size: 9px;
  color: rgba(10, 14, 13, .65);
}
.contact-foot {
  display: grid;
  grid-template-columns: 1fr 1.1fr 1.3fr;
  gap: 30px;
  margin-top: clamp(64px, 8vw, 100px);
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.contact-foot span {
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .18em;
  color: #626b61;
}
.contact-foot p {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.8;
  color: #aab2a7;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #060908;
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 44px 0 24px;
}
.footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding-bottom: 34px;
}
.footer-brand .brand-mark { color: var(--lime); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 26px; }
.footer-nav a {
  font-size: 11px;
  color: #8c968a;
  transition: color .3s;
}
.footer-nav a:hover { color: var(--lime); }
.footer-note {
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: .01em;
  color: #b7c0b3;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .07);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .04em;
  color: #606a5f;
}
.footer-draft { color: #77816f; }

/* ---------- Draft ---------- */
.draft-toggle {
  position: fixed;
  left: 20px;
  bottom: 20px;
  z-index: 800;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 999px;
  background: rgba(10, 14, 13, .8);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: #c8d0c4;
  font-size: 10px;
  letter-spacing: .04em;
  cursor: pointer;
  transition: border-color .3s, background .3s;
}
.draft-toggle:hover { border-color: var(--lime); background: rgba(10, 14, 13, .95); }
.draft-toggle small {
  font-family: var(--font-mono);
  font-size: 8px;
  color: #7f897c;
}
.draft-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(216, 255, 79, .12);
}
.draft-panel {
  position: fixed;
  left: 20px;
  bottom: 66px;
  z-index: 810;
  width: min(360px, calc(100vw - 40px));
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 18px;
  background: #f2f0e8;
  color: var(--ink);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .35s var(--ease-soft), visibility .35s, transform .35s var(--ease);
}
.draft-panel.is-open { opacity: 1; visibility: visible; transform: none; }
.draft-head { display: flex; justify-content: space-between; gap: 16px; }
.draft-head span {
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .18em;
  color: #737b71;
}
.draft-head h3 { margin-top: 6px; font-size: 18px; letter-spacing: -.02em; }
.draft-close {
  width: 28px;
  height: 28px;
  border: 1px solid rgba(10, 14, 13, .18);
  border-radius: 50%;
  background: transparent;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}
.draft-panel p { margin-top: 16px; font-size: 12px; line-height: 1.8; color: #4c544b; }
.draft-panel ul { margin-top: 12px; display: grid; gap: 7px; }
.draft-panel li {
  position: relative;
  padding-left: 14px;
  font-size: 11px;
  line-height: 1.7;
  color: #3d453c;
}
.draft-panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .65em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #6e7d2a;
}
.draft-tip {
  margin-top: 16px;
  padding: 10px 12px;
  border-left: 2px solid #89a427;
  background: rgba(216, 255, 79, .28);
  font-size: 10px;
  line-height: 1.7;
  color: #3e4829;
}

/* ---------- Dialog ---------- */
.contact-dialog {
  width: min(660px, calc(100vw - 32px));
  max-height: calc(100svh - 32px);
  padding: 0;
  border: none;
  border-radius: 24px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 40px 120px rgba(0, 0, 0, .55);
  overflow: auto;
}
.contact-dialog::backdrop {
  background: rgba(4, 7, 5, .72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.dialog-inner { position: relative; padding: clamp(26px, 5vw, 44px); }
.dialog-close {
  position: absolute;
  right: 20px;
  top: 20px;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(10, 14, 13, .18);
  border-radius: 50%;
  background: transparent;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  transition: background .3s, color .3s;
}
.dialog-close:hover { background: var(--ink); color: var(--lime); }
.dialog-head > span {
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: .18em;
  color: #788073;
}
.dialog-head h2 {
  margin-top: 14px;
  font-size: clamp(2rem, 4.8vw, 3rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -.055em;
}
.dialog-head p {
  max-width: 440px;
  margin-top: 14px;
  font-size: 12px;
  line-height: 1.85;
  color: #5b6358;
}
.contact-form { margin-top: 28px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.contact-form label { display: block; margin-bottom: 14px; }
.contact-form label > span {
  display: block;
  margin-bottom: 7px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .04em;
  color: #454d43;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(10, 14, 13, .19);
  border-radius: 10px;
  background: rgba(255, 255, 255, .4);
  color: var(--ink);
  padding: 12px 13px;
  font-size: 12px;
  outline: none;
  transition: border-color .3s, background .3s, box-shadow .3s;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: #93998f; }
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: #5f7624;
  background: rgba(255, 255, 255, .75);
  box-shadow: 0 0 0 3px rgba(110, 124, 44, .12);
}
.contact-form textarea { resize: vertical; min-height: 88px; }
.form-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 6px;
}
.form-foot p { font-size: 9px; color: #7a8276; }
.form-foot .btn { min-height: 46px; padding-inline: 20px; font-size: 11px; }
.form-success { padding: 30px 0 10px; text-align: center; }
.success-icon {
  display: inline-grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--lime);
  color: var(--ink);
  font-size: 24px;
  font-weight: 700;
}
.form-success h3 { margin-top: 20px; font-size: 26px; letter-spacing: -.04em; }
.form-success p {
  max-width: 440px;
  margin: 14px auto 24px;
  font-size: 12px;
  line-height: 1.8;
  color: #5b6358;
}

/* ---------- Reveal ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: var(--delay, 0s);
}
.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
.js .hero-copy [data-reveal] { transition-duration: 1.15s; }

/* ---------- Responsive ---------- */
@media (max-width: 1240px) {
  .container { width: calc(100% - 64px); }
  .hero-grid { grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr); gap: 20px; }
  .hero h1 { font-size: clamp(3.7rem, 8.2vw, 7.4rem); }
  .hero-visual { min-height: 540px; }
  .orbital-system { width: min(39vw, 470px); }
  .chip-location { right: 0; }
  .chip-stack { right: 0; bottom: 5%; }
  .node-decide { right: 0; }
  .node-act { right: 8%; }
  .step-main { grid-template-columns: minmax(160px, .55fr) 1fr; }
}

@media (max-width: 1040px) {
  .desktop-nav { gap: 18px; }
  .desktop-nav a { font-size: 11px; }
  .hero-grid { grid-template-columns: 1fr; gap: 20px; }
  .hero { padding-top: 142px; }
  .hero-copy { max-width: 820px; }
  .hero h1 { font-size: clamp(4rem, 10.4vw, 8rem); }
  .hero-visual { min-height: 540px; width: min(680px, 100%); margin: 0 auto; }
  .orbital-system { width: min(68vw, 470px); }
  .hero-scroll { display: none; }
  .services-head { grid-template-columns: 1fr; gap: 26px; }
  .services-head p { justify-self: start; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-title .section-title { position: static; }
  .about-stamp { margin-top: 24px; }
  .about-body { max-width: 760px; }
  .eco-grid { grid-template-columns: 1fr; gap: 54px; }
  .eco-visual { max-width: 620px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-panel { max-width: 440px; }
}

@media (max-width: 820px) {
  .container { width: calc(100% - 40px); }
  .site-header { top: 12px; width: calc(100% - 24px); padding-left: 14px; }
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
  .btn-header { display: none; }
  .brand-mark { width: 34px; height: 34px; }
  .brand-text strong { font-size: 14px; }

  .hero { min-height: auto; padding: 126px 0 70px; }
  .hero h1 { font-size: clamp(3.6rem, 14vw, 6.4rem); letter-spacing: -.08em; }
  .hero-lead { font-size: 15px; }
  .hero-meta { gap: 12px; margin-top: 40px; }
  .hero-meta span { font-size: 7px; }
  .hero-meta strong { font-size: 10px; }
  .hero-actions .btn { min-height: 50px; padding-inline: 19px; font-size: 11px; }
  .hero-visual { min-height: 470px; margin-top: 20px; }
  .orbital-system { width: min(80vw, 430px); }
  .visual-chip { transform: scale(.9); }
  .chip-location { top: 2%; right: 0; transform-origin: top right; }
  .chip-stack { right: 0; bottom: 0; transform-origin: bottom right; }
  .node-sense { left: 0; }
  .node-generate { left: 0; }
  .node-act { right: 4%; }

  .section { padding: 80px 0; }
  .section-title { font-size: clamp(2.4rem, 9.5vw, 4rem); }
  .section-index { font-size: 2.8rem; }
  .section-label { font-size: 8px; }
  .about-grid { padding-top: 46px; }
  .services-head .section-title { font-size: clamp(2.3rem, 8.6vw, 3.7rem); }
  .about-lead { font-size: 1.2rem; }
  .principles { grid-template-columns: 1fr; margin-top: 54px; }
  .principles article { border-right: 0; border-bottom: 1px solid var(--line-dark); padding: 24px 0; }
  .principles article + article { padding-left: 0; }
  .principles article:last-child { border-bottom: 0; }

  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 330px; padding: 26px 24px; }
  .service-card h3 { margin-top: 42px; }
  .capability-line { flex-direction: column; gap: 14px; }

  .approach-head { flex-direction: column; align-items: flex-start; gap: 24px; }
  .step { grid-template-columns: 44px 1fr; gap: 12px; padding: 24px 0; }
  .step:hover { padding-left: 10px; padding-right: 10px; }
  .step-main { grid-template-columns: 1fr; gap: 8px; }
  .step-main h3 { font-size: 1.6rem; }
  .step-tag { display: none; }

  .ecosystem { padding-top: 80px; padding-bottom: 80px; }
  .eco-copy .section-label { margin-bottom: 28px; }
  .eco-copy .section-title { font-size: clamp(2.35rem, 9vw, 3.8rem); }
  .eco-pillars { grid-template-columns: 1fr; border-top: 0; margin-top: 30px; }
  .eco-pillars div { border-right: 0; border-top: 1px solid rgba(10, 14, 13, .15); padding: 14px 0; }
  .eco-pillars div + div { padding-left: 0; }
  .eco-frame { transform: none; }
  .eco-quote { margin-top: 32px; }

  .contact { padding-bottom: 70px; }
  .contact-title { font-size: clamp(3.4rem, 15vw, 6rem); }
  .contact-copy p { margin-top: 22px; }
  .contact-foot { grid-template-columns: 1fr; gap: 22px; }
  .contact-foot p { margin-top: 5px; }

  .footer-main { flex-direction: column; align-items: flex-start; gap: 22px; }
  .footer-nav { gap: 16px; }
  .footer-note { font-size: 13px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .draft-toggle { left: 12px; bottom: 12px; }
  .draft-panel { left: 12px; bottom: 58px; }
}

@media (max-width: 520px) {
  .container { width: calc(100% - 32px); }
  .eyebrow { gap: 6px; font-size: 8px; letter-spacing: .1em; }
  .eyebrow i { display: none; }
  .hero h1 { font-size: clamp(3.2rem, 15vw, 5rem); }
  .hero h1 .line { white-space: normal; }
  .hero h1 .line-accent { white-space: nowrap; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .hero-meta { grid-template-columns: 1fr 1fr; }
  .hero-meta div:last-child { display: none; }
  .hero-visual { min-height: 400px; }
  .orbital-system { width: min(90vw, 360px); }
  .visual-chip { transform: scale(.78); }
  .chip-location { top: -1%; right: -4%; }
  .chip-stack { right: -4%; bottom: -2%; }
  .node-label { transform: scale(.82); }
  .node-label small { display: none; }
  .node-sense { top: 3%; left: -2%; }
  .node-decide { top: 25%; right: -2%; }
  .node-generate { bottom: 28%; left: -2%; }
  .node-act { bottom: 5%; right: 4%; }
  .visual-coord { display: none; }

  .section-top { padding-bottom: 16px; }
  .section-index { font-size: 2.2rem; }
  .about-quote { font-size: 1.55rem; }
  .service-card { min-height: 0; }
  .service-card h3 { font-size: 1.5rem; }
  .service-card li { font-size: 9px; }
  .card-arrow { right: 18px; bottom: 18px; }

  .marquee-track span { padding: 0 18px; font-size: 9px; }

  .field-row { grid-template-columns: 1fr; gap: 0; }
  .dialog-inner { padding: 26px 20px; }
  .form-foot { flex-direction: column; align-items: stretch; }
  .form-foot .btn { width: 100%; }
  .form-foot p { order: 2; text-align: center; }

  .contact-panel { padding: 24px 22px; }
  .footer-bottom { font-size: 8.5px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
}