:root {
  --paper: #f2eee5;
  --paper-soft: #f8f5ee;
  --paper-deep: #e5dfd2;
  --ink: #191816;
  --ink-soft: #777168;
  --screen: #1b1c19;
  --screen-soft: #252620;
  --screen-line: #42433c;
  --seam: #c9c1b2;
  --seam-dark: #9f9789;
  --link: #2f63e9;
  --shipped: #3ba865;
  --pending: #c98527;
  --oppo-accent: #315f4a;
  --meizu-accent: #385d9f;
  --leaptic-accent: #d45d25;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --mono: "SFMono-Regular", "IBM Plex Mono", "Roboto Mono", Consolas, monospace;
  --page: min(1640px, calc(100vw - 96px));
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

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

button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}

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

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

button {
  color: inherit;
  font: inherit;
}

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

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: #fff;
  background: var(--link);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.section-shell,
.chapter-shell,
.exploration-shell {
  width: var(--page);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  min-height: 68px;
  padding: 0 48px;
  border-bottom: 1px solid rgba(25, 24, 22, 0.22);
  background: rgba(242, 238, 229, 0.95);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  justify-self: start;
  min-height: 44px;
  font-size: 14px;
  font-weight: 650;
}

.brand-mark {
  display: grid;
  grid-template-columns: repeat(3, 4px);
  gap: 2px;
  width: 16px;
  height: 16px;
}

.brand-mark i {
  width: 4px;
  height: 4px;
  background: var(--ink);
}

.brand-mark i:nth-child(2),
.brand-mark i:nth-child(4),
.brand-mark i:nth-child(6) {
  background: transparent;
}

.brand-role {
  padding-left: 10px;
  border-left: 1px solid var(--seam-dark);
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(22px, 3vw, 52px);
  justify-self: end;
}

.site-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 600;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  background: var(--link);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--ink);
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  display: none;
  align-items: center;
  gap: 10px;
  justify-self: end;
  min-height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  font-size: 13px;
  font-weight: 650;
}

.menu-icon {
  position: relative;
  width: 20px;
  height: 12px;
}

.menu-icon i {
  position: absolute;
  right: 0;
  width: 20px;
  height: 1px;
  background: currentColor;
  transition: transform 180ms ease, top 180ms ease;
}

.menu-icon i:first-child {
  top: 2px;
}

.menu-icon i:last-child {
  top: 9px;
}

.menu-button[aria-expanded="true"] .menu-icon i:first-child {
  top: 6px;
  transform: rotate(45deg);
}

.menu-button[aria-expanded="true"] .menu-icon i:last-child {
  top: 6px;
  transform: rotate(-45deg);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(400px, 0.84fr);
  gap: clamp(52px, 7vw, 128px);
  align-items: center;
  min-height: calc(100vh - 68px);
  padding-block: clamp(72px, 10vh, 138px);
}

.kicker,
.section-index,
.chapter-period,
.case-number,
.serial,
.diagram-label,
.screen-evidence__head,
.principle-no,
.lab-status {
  font-family: var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kicker {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 32px;
  font-size: 11px;
  font-weight: 600;
}

.signal-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border: 1px solid currentColor;
}

.signal-dot--live {
  position: relative;
  margin-right: 12px;
  color: var(--shipped);
  background: var(--shipped);
  box-shadow: 12px 0 0 -2px var(--paper), 12px 0 0 0 var(--shipped);
}

.hero h1 {
  max-width: 920px;
  margin: 0;
  font-size: clamp(48px, 5.2vw, 88px);
  font-weight: 610;
  letter-spacing: -0.065em;
  line-height: 1.08;
}

.hero h1 em {
  color: var(--ink-soft);
  font-style: normal;
  font-weight: 470;
}

.hero h1 em span {
  white-space: nowrap;
}

.hero-intro {
  max-width: 770px;
  margin: 36px 0 0;
  color: #5f5a52;
  font-size: clamp(17px, 1.35vw, 21px);
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  gap: 28px;
  margin-top: 42px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  min-height: 44px;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--ink);
  font-size: 14px;
  font-weight: 650;
  transition: gap 180ms ease, color 180ms ease;
}

.text-link:hover {
  gap: 24px;
  color: var(--link);
}

.text-link--quiet {
  border-color: var(--seam-dark);
  color: var(--ink-soft);
}

.career-device {
  position: relative;
  overflow: hidden;
  min-height: 620px;
  padding: 24px;
  border: 1px solid #11120f;
  border-radius: 22px;
  color: #e9e5da;
  background: var(--screen);
  box-shadow: 0 28px 80px rgba(42, 36, 28, 0.18), inset 0 0 0 7px #24251f, inset 0 0 0 8px #3a3b35;
}

.career-device::before,
.career-device::after {
  position: absolute;
  width: 9px;
  height: 9px;
  border: 1px solid #5b5c54;
  border-radius: 50%;
  content: "";
}

.career-device::before {
  top: 17px;
  right: 17px;
}

.career-device::after {
  right: 17px;
  bottom: 17px;
}

.device-topline {
  display: flex;
  justify-content: space-between;
  padding: 4px 4px 19px;
  border-bottom: 1px solid var(--screen-line);
  color: #b4b2a9;
  font-size: 11px;
}

.serial {
  font-size: 9px;
}

.pixel-name {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  margin: 20px 0 30px;
}

.pixel-name span {
  display: grid;
  place-items: center;
  aspect-ratio: 0.78;
  border: 1px solid #404139;
  color: #f7f4ea;
  background: #22231f;
  font-family: var(--mono);
  font-size: clamp(18px, 1.7vw, 29px);
  font-weight: 700;
  clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
}

.pixel-name span:nth-child(1),
.pixel-name span:nth-child(6) {
  color: var(--screen);
  background: #f0ebdd;
}

.path-display {
  padding: 8px 4px 0;
}

.path-node {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: center;
  min-height: 74px;
}

.path-index {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid #4a4b43;
  color: #8d8e85;
  font-family: var(--mono);
  font-size: 10px;
}

.path-node--active .path-index {
  border-color: #c98527;
  color: #f3bd70;
  background: #30271c;
}

.path-node strong {
  display: block;
  font-size: 18px;
  font-weight: 570;
  letter-spacing: 0.01em;
}

.path-node small {
  display: block;
  margin-top: 3px;
  color: #929188;
  font-size: 11px;
}

.path-trace {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 38px;
  margin-left: 18px;
  border-left: 1px solid #55564e;
}

.path-trace i {
  width: 3px;
  height: 3px;
  margin-left: -2px;
  background: #77786f;
}

.device-footer {
  position: absolute;
  right: 24px;
  bottom: 24px;
  left: 24px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 16px;
  border: 1px solid #45463f;
  background: #20211d;
}

.system-face {
  position: relative;
  display: block;
  width: 36px;
  height: 36px;
  border: 1px solid #686960;
}

.system-face i {
  position: absolute;
  top: 10px;
  width: 3px;
  height: 5px;
  background: #ddd8cb;
}

.system-face i:first-child {
  left: 9px;
}

.system-face i:nth-child(2) {
  right: 9px;
}

.system-face b {
  position: absolute;
  right: 9px;
  bottom: 8px;
  left: 9px;
  height: 6px;
  border-right: 2px solid #ddd8cb;
  border-bottom: 2px solid #ddd8cb;
  border-left: 2px solid #ddd8cb;
}

.device-footer p {
  margin: 0;
  color: #8f8f87;
  font-size: 10px;
  line-height: 1.5;
}

.device-footer p strong {
  color: #e2ded3;
  font-size: 11px;
  font-weight: 550;
}

.status-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #aaa99f;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.06em;
}

.status-label i,
.lab-status i {
  width: 6px;
  height: 6px;
  background: var(--shipped);
  box-shadow: 0 0 0 3px rgba(59, 168, 101, 0.13);
}

.career {
  padding-block: clamp(110px, 14vw, 220px);
  border-top: 1px solid var(--seam);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  gap: clamp(48px, 10vw, 180px);
  align-items: end;
}

.section-index {
  margin: 0 0 22px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 650;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(40px, 4.5vw, 76px);
  font-weight: 560;
  letter-spacing: -0.055em;
  line-height: 1.13;
}

.section-heading > p {
  max-width: 560px;
  margin: 0 0 8px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.9;
}

.career-rail {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 90px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--seam);
}

.career-stop {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 420px;
  padding: 28px clamp(24px, 3vw, 48px) 34px;
  border-right: 1px solid var(--seam);
  transition: color 220ms ease, background-color 220ms ease;
}

.career-stop:last-child {
  border-right: 0;
}

.career-stop::before {
  position: absolute;
  top: -6px;
  left: clamp(24px, 3vw, 48px);
  width: 11px;
  height: 11px;
  border: 2px solid var(--paper);
  background: var(--ink);
  content: "";
}

.career-stop:hover {
  color: var(--paper-soft);
  background: var(--ink);
}

.career-stop:hover .stop-meta,
.career-stop:hover .stop-outcome {
  color: #bdb8ad;
}

.career-stop:hover::before {
  border-color: var(--ink);
  background: var(--paper-soft);
}

.stop-meta {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.stop-number {
  align-self: end;
  margin: 30px 0 36px;
  font-family: var(--mono);
  font-size: 64px;
  font-weight: 300;
  line-height: 1;
}

.career-stop strong {
  font-size: clamp(25px, 2.2vw, 36px);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.career-stop p {
  margin: 8px 0 24px;
  font-size: 14px;
  line-height: 1.75;
}

.stop-outcome {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid currentColor;
  color: var(--ink-soft);
  font-size: 11px;
}

.company-chapter {
  position: relative;
  padding-block: clamp(110px, 12vw, 190px);
  border-top: 1px solid var(--seam-dark);
}

.company-chapter--oppo {
  --chapter-accent: var(--oppo-accent);
  background: #eeeae1;
}

.company-chapter--meizu {
  --chapter-accent: var(--meizu-accent);
  background: #f4f1e9;
}

.company-chapter--leaptic {
  --chapter-accent: var(--leaptic-accent);
  color: #f1eee5;
  background: var(--screen);
}

.chapter-header {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) minmax(300px, 0.48fr);
  gap: clamp(30px, 5vw, 80px);
  align-items: start;
  padding-bottom: clamp(74px, 8vw, 120px);
  border-bottom: 1px solid currentColor;
}

.chapter-stamp {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 92px;
  height: 124px;
  padding: 12px;
  border: 1px solid currentColor;
  font-family: var(--mono);
}

.chapter-stamp::before,
.chapter-stamp::after {
  position: absolute;
  width: 7px;
  height: 7px;
  border: 1px solid currentColor;
  border-radius: 50%;
  content: "";
}

.chapter-stamp::before {
  top: 7px;
  right: 7px;
}

.chapter-stamp::after {
  right: 7px;
  bottom: 7px;
}

.chapter-stamp span {
  font-size: 8px;
  letter-spacing: 0.12em;
}

.chapter-stamp strong {
  font-size: 54px;
  font-weight: 300;
  line-height: 1;
}

.chapter-stamp i {
  position: absolute;
  top: 38px;
  right: 12px;
  width: 7px;
  height: 7px;
  background: var(--chapter-accent);
}

.chapter-period {
  margin: 0 0 26px;
  color: var(--chapter-accent);
  font-size: 10px;
  font-weight: 700;
}

.company-chapter--leaptic .chapter-period {
  color: #f28a51;
}

.chapter-title-wrap h2 {
  margin: 0;
  font-size: clamp(64px, 9vw, 150px);
  font-weight: 620;
  letter-spacing: -0.075em;
  line-height: 0.82;
}

.chapter-title-wrap h2 small {
  font-size: 0.34em;
  font-weight: 450;
  letter-spacing: -0.03em;
}

.chapter-lead {
  max-width: 820px;
  margin: 40px 0 0;
  color: var(--ink-soft);
  font-size: clamp(18px, 1.55vw, 24px);
  line-height: 1.8;
}

.company-chapter--leaptic .chapter-lead {
  color: #aaa89f;
}

.chapter-plate {
  padding: 22px;
  border-top: 4px solid var(--chapter-accent);
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  border-left: 1px solid currentColor;
}

.chapter-plate span {
  display: block;
  margin-bottom: 30px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.company-chapter--leaptic .chapter-plate span {
  color: #96958d;
}

.chapter-plate strong {
  display: block;
  font-size: 18px;
  font-weight: 600;
}

.chapter-plate p {
  margin: 8px 0 0;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.8;
}

.company-chapter--leaptic .chapter-plate p {
  color: #99988f;
}

.case-file {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(520px, 1.18fr);
  gap: clamp(48px, 7vw, 112px);
  align-items: start;
  padding-block: clamp(100px, 10vw, 160px);
  border-bottom: 1px solid var(--seam-dark);
}

.company-chapter--leaptic .case-file {
  border-color: #4a4b43;
}

.case-file--reverse .case-copy {
  grid-column: 2;
}

.case-file--reverse > :last-child {
  grid-column: 1;
  grid-row: 1;
}

.case-number {
  margin: 0 0 30px;
  color: var(--chapter-accent);
  font-size: 10px;
  font-weight: 700;
}

.company-chapter--leaptic .case-number {
  color: #f28a51;
}

.case-copy h3 {
  margin: 0;
  font-size: clamp(36px, 3.25vw, 56px);
  font-weight: 560;
  letter-spacing: -0.055em;
  line-height: 1.15;
}

.case-summary {
  max-width: 700px;
  margin: 28px 0 50px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.9;
}

.company-chapter--leaptic .case-summary {
  color: #aaa89f;
}

.fact-grid {
  margin: 0;
  border-top: 1px solid currentColor;
}

.fact-grid > div {
  display: grid;
  grid-template-columns: 104px 1fr;
  gap: 22px;
  padding: 17px 0;
  border-bottom: 1px solid var(--seam);
}

.company-chapter--leaptic .fact-grid > div {
  border-color: #41423c;
}

.fact-grid dt {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 650;
  letter-spacing: 0.05em;
}

.company-chapter--leaptic .fact-grid dt {
  color: #898980;
}

.fact-grid dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
}

.proof {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
}

.proof > i {
  display: inline-block;
  width: 8px;
  height: 8px;
}

.proof--pending {
  color: var(--pending);
}

.proof--pending > i {
  border: 1px solid var(--pending);
  background: transparent;
}

.proof--shipped {
  color: var(--shipped);
}

.proof--shipped > i {
  background: var(--shipped);
}

.evidence-note {
  margin-top: 22px;
  padding: 0 14px;
  border: 1px solid var(--seam);
}

.company-chapter--leaptic .evidence-note {
  border-color: #474840;
}

.evidence-note summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 46px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 650;
  list-style: none;
}

.evidence-note summary::-webkit-details-marker {
  display: none;
}

.evidence-note summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 16px;
}

.evidence-note[open] summary::after {
  content: "−";
}

.evidence-note p {
  margin: 0;
  padding: 2px 0 16px;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.75;
}

.company-chapter--leaptic .evidence-note p {
  color: #9f9f96;
}

.system-diagram {
  position: sticky;
  top: 110px;
  overflow: hidden;
  min-height: 720px;
  border: 1px solid #0f100e;
  color: #ece8dd;
  background: var(--screen);
  box-shadow: 0 24px 64px rgba(41, 36, 29, 0.14), inset 0 0 0 6px #24251f;
}

.system-diagram::after {
  position: absolute;
  right: 18px;
  bottom: 18px;
  width: 8px;
  height: 8px;
  border: 1px solid #57584f;
  border-radius: 50%;
  content: "";
}

.case-evidence-photo {
  position: sticky;
  top: 120px;
  display: grid;
  min-height: 650px;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
  margin: 0;
  border: 1px solid #393a35;
  color: var(--paper);
  background: var(--screen);
  box-shadow: 0 24px 64px rgba(41, 36, 29, 0.14), inset 0 0 0 6px var(--screen-soft);
}

.evidence-photo-label {
  display: flex;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--screen-line);
  color: var(--seam-dark);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.evidence-photo-label strong {
  color: var(--seam);
  font-weight: 550;
}

.case-evidence-photo img {
  width: min(70%, 430px);
  height: auto;
  max-height: 760px;
  align-self: center;
  justify-self: center;
  object-fit: contain;
}

.case-evidence-photo figcaption {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-top: 1px solid var(--screen-line);
}

.case-evidence-photo figcaption p {
  max-width: 360px;
  margin: 0;
  color: var(--seam-dark);
  font-size: 10px;
  line-height: 1.65;
  text-align: right;
}

.diagram-label {
  display: flex;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid #46473f;
  color: #96968e;
  font-size: 9px;
}

.diagram-label strong {
  color: #cfcbc0;
  font-weight: 550;
}

.diagram-proof {
  position: absolute;
  bottom: 22px;
  left: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #ad8d60;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.06em;
}

.diagram-proof i {
  width: 7px;
  height: 7px;
  border: 1px solid var(--pending);
}

.sensor-cluster {
  position: absolute;
  top: 125px;
  left: 50%;
  width: 280px;
  height: 280px;
  border: 1px solid #42433c;
  border-radius: 50%;
  transform: translateX(-50%);
}

.sensor-cluster::before,
.sensor-cluster::after {
  position: absolute;
  border: 1px solid #35362f;
  border-radius: 50%;
  content: "";
}

.sensor-cluster::before {
  inset: 34px;
}

.sensor-cluster::after {
  inset: 84px;
  background: #25261f;
}

.sensor {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 58px;
  height: 30px;
  border: 1px solid #62635a;
  color: #aaa99f;
  background: #20211c;
  font-family: var(--mono);
  font-size: 9px;
}

.sensor--a {
  top: -16px;
  left: 111px;
}

.sensor--b {
  top: 124px;
  right: -30px;
}

.sensor--c {
  bottom: -16px;
  left: 111px;
}

.sensor--d {
  top: 124px;
  left: -30px;
}

.orbit {
  position: absolute;
  z-index: 3;
  width: 7px;
  height: 7px;
  background: #d7a354;
}

.orbit--one {
  top: 45px;
  left: 44px;
}

.orbit--two {
  right: 33px;
  bottom: 67px;
}

.logic-gate {
  position: absolute;
  top: 456px;
  left: 50%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 280px;
  border: 1px solid #55564e;
  transform: translateX(-50%);
}

.logic-gate span,
.logic-gate b {
  padding: 13px;
  font-size: 10px;
  font-weight: 500;
  text-align: center;
}

.logic-gate b {
  border-left: 1px solid #55564e;
  color: #e6b263;
}

.logic-gate i {
  position: absolute;
  bottom: -42px;
  left: 50%;
  width: 1px;
  height: 42px;
  background: #55564e;
}

.service-window {
  position: absolute;
  right: 64px;
  bottom: 78px;
  left: 64px;
  padding: 17px 20px 20px;
  border: 1px solid #77786f;
  background: #ede9df;
  color: #1c1d19;
}

.window-bar {
  display: flex;
  gap: 5px;
  margin-bottom: 18px;
}

.window-bar i {
  width: 6px;
  height: 6px;
  border: 1px solid #585a52;
}

.service-window strong {
  font-size: 18px;
  font-weight: 600;
}

.service-window p {
  margin: 5px 0 0;
  color: #66635b;
  font-size: 11px;
  line-height: 1.6;
}

.system-diagram--gallery {
  background: #20211d;
}

.photo-frame {
  position: absolute;
  top: 120px;
  right: 60px;
  left: 60px;
  height: 370px;
  overflow: hidden;
  border: 1px solid #66675e;
  background: #dcd6c8;
}

.photo-frame::before {
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(28, 29, 25, 0.35);
  content: "";
}

.mountain {
  position: absolute;
  bottom: 0;
  background: #8f9684;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}

.mountain--one {
  left: -30px;
  width: 310px;
  height: 220px;
}

.mountain--two {
  right: -40px;
  width: 360px;
  height: 260px;
  background: #656d61;
}

.subject,
.passer {
  position: absolute;
  bottom: 34px;
  width: 34px;
  height: 112px;
  border-radius: 19px 19px 5px 5px;
  background: #272823;
}

.subject {
  z-index: 2;
  left: 50%;
  width: 42px;
  height: 138px;
  transform: translateX(-50%);
}

.passer--one {
  left: 24%;
  opacity: 0.7;
}

.passer--two {
  right: 20%;
  opacity: 0.6;
}

.selection-ring {
  position: absolute;
  z-index: 3;
  top: 132px;
  left: 20%;
  width: 62px;
  height: 128px;
  border: 1px dashed #ef863f;
}

.selection-ring::before,
.selection-ring::after {
  position: absolute;
  width: 7px;
  height: 7px;
  border: 1px solid #ef863f;
  background: #dcd6c8;
  content: "";
}

.selection-ring::before {
  top: -4px;
  left: -4px;
}

.selection-ring::after {
  right: -4px;
  bottom: -4px;
}

.edit-strip {
  position: absolute;
  right: 60px;
  bottom: 90px;
  left: 60px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid #585951;
  border-bottom: 1px solid #585951;
}

.edit-step {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 10px;
  border-right: 1px solid #585951;
  color: #8e8e86;
  font-size: 10px;
  text-align: center;
}

.edit-step:last-child {
  border-right: 0;
}

.edit-step i {
  color: #77786f;
  font-family: var(--mono);
  font-size: 8px;
  font-style: normal;
}

.edit-step.is-current {
  color: #f2ede2;
  background: #303129;
}

.device-field {
  position: absolute;
  top: 118px;
  right: 54px;
  left: 54px;
  height: 470px;
  border: 1px solid #3f4039;
}

.device-field::before,
.device-field::after {
  position: absolute;
  content: "";
}

.device-field::before {
  top: 50%;
  right: 0;
  left: 0;
  border-top: 1px dashed #34352f;
}

.device-field::after {
  top: 0;
  bottom: 0;
  left: 50%;
  border-left: 1px dashed #34352f;
}

.device-node {
  position: absolute;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 112px;
  height: 128px;
  border: 1px solid #686960;
  background: #20211c;
}

.device-node i {
  display: block;
  width: 28px;
  height: 36px;
  margin-bottom: 13px;
  border: 1px solid #c0beb5;
}

.device-node strong {
  font-size: 12px;
  font-weight: 580;
}

.device-node span {
  margin-top: 3px;
  color: #818179;
  font-size: 8px;
}

.device-node--phone {
  top: 170px;
  left: 22px;
}

.device-node--phone i {
  width: 19px;
  border-radius: 4px;
}

.device-node--pc {
  top: 34px;
  right: 24px;
}

.device-node--pc i {
  width: 42px;
  height: 27px;
  box-shadow: 0 5px 0 -3px #c0beb5;
}

.device-node--car {
  right: 24px;
  bottom: 34px;
}

.device-node--car i {
  width: 42px;
  height: 23px;
  border-radius: 12px 12px 3px 3px;
}

.device-lines {
  position: absolute;
  z-index: 1;
  inset: 70px 10px 80px 72px;
  width: calc(100% - 82px);
  height: calc(100% - 150px);
  overflow: visible;
}

.device-lines path {
  fill: none;
  stroke: #686960;
  stroke-width: 1;
  stroke-dasharray: 5 7;
}

.device-lines circle {
  fill: #f0b05a;
}

.task-packet {
  position: absolute;
  z-index: 4;
  padding: 5px 9px;
  border: 1px solid #6d6e65;
  color: #d1cec4;
  background: #2b2c26;
  font-size: 8px;
}

.task-packet--one {
  top: 75px;
  left: 46%;
}

.task-packet--two {
  top: 48%;
  left: 52%;
}

.task-packet--three {
  bottom: 70px;
  left: 43%;
}

.live-screen {
  position: absolute;
  top: 122px;
  right: 62px;
  bottom: 78px;
  left: 62px;
  padding: 52px 30px 30px;
  border: 1px solid #5d5e55;
  border-radius: 38px;
  background: #24251f;
  box-shadow: inset 0 0 0 8px #1b1c18;
}

.live-screen::before {
  position: absolute;
  top: 18px;
  left: 50%;
  width: 66px;
  height: 4px;
  border-radius: 4px;
  background: #575850;
  content: "";
  transform: translateX(-50%);
}

.live-island {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: 13px;
  align-items: center;
  padding: 15px;
  border: 1px solid #65665d;
  border-radius: 24px;
  background: #10110f;
}

.live-icon {
  position: relative;
  display: block;
  width: 36px;
  height: 36px;
  border: 1px solid #d3a35a;
  border-radius: 50%;
}

.live-icon i:first-child {
  position: absolute;
  top: 9px;
  left: 9px;
  width: 15px;
  height: 10px;
  border-right: 2px solid #d3a35a;
  border-bottom: 2px solid #d3a35a;
}

.live-icon i:last-child {
  position: absolute;
  right: 8px;
  bottom: 6px;
  width: 4px;
  height: 4px;
  background: #d3a35a;
}

.live-island strong,
.live-island small {
  display: block;
}

.live-island strong {
  font-size: 11px;
  font-weight: 560;
}

.live-island small {
  margin-top: 2px;
  color: #8c8c84;
  font-size: 8px;
}

.live-island b {
  color: #e7b15e;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
}

.task-states {
  display: grid;
  grid-template-columns: auto 1fr auto 1fr auto;
  gap: 8px;
  align-items: center;
  margin: 42px 0;
  color: #74756d;
  font-size: 8px;
}

.task-states i {
  border-top: 1px solid #52534b;
}

.task-states .is-done {
  color: #8ead96;
}

.task-states .is-current {
  color: #e6ad58;
}

.fallback-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  border-top: 1px solid #46473f;
  border-left: 1px solid #46473f;
}

.fallback-grid span,
.fallback-grid strong {
  padding: 12px;
  border-right: 1px solid #46473f;
  border-bottom: 1px solid #46473f;
  font-size: 9px;
  font-weight: 500;
}

.fallback-grid span {
  color: #7f8078;
}

.chapter-archive {
  display: grid;
  grid-template-columns: minmax(200px, 0.42fr) minmax(0, 1fr) minmax(260px, 0.54fr);
  gap: 42px;
  align-items: start;
  padding-top: 52px;
}

.chapter-archive > div span {
  display: block;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.company-chapter--leaptic .chapter-archive > div span {
  color: #898980;
}

.chapter-archive > div strong {
  display: block;
  margin-top: 7px;
  font-size: 20px;
  font-weight: 600;
}

.chapter-archive ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chapter-archive li {
  padding: 7px 11px;
  border: 1px solid var(--seam);
  color: var(--ink-soft);
  font-size: 11px;
}

.company-chapter--leaptic .chapter-archive li {
  border-color: #46473f;
  color: #aaa99f;
}

.chapter-archive > p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.8;
}

.company-chapter--leaptic .chapter-archive > p {
  color: #99988f;
}

.archive-evidence {
  grid-column: 1 / -1;
  border-top: 1px solid var(--seam);
  border-bottom: 1px solid var(--seam);
}

.archive-evidence summary {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  min-height: 58px;
  cursor: pointer;
  list-style: none;
}

.archive-evidence summary::-webkit-details-marker {
  display: none;
}

.archive-evidence summary span {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.archive-evidence summary strong {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
}

.archive-evidence summary strong::after {
  color: var(--oppo-accent);
  content: "+";
  font-family: var(--mono);
  font-size: 18px;
}

.archive-evidence[open] summary strong::after {
  content: "−";
}

.archive-evidence-body {
  display: grid;
  grid-template-columns: minmax(150px, 0.3fr) 1fr;
  gap: 28px;
  align-items: center;
  padding: 10px 0 32px;
}

.archive-evidence-body img {
  width: 100%;
  height: auto;
  max-height: 520px;
  object-fit: contain;
}

.archive-evidence-body p {
  max-width: 620px;
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.75;
}

.archive-evidence-body small {
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.7;
}

.screen-evidence {
  position: sticky;
  top: 96px;
  overflow: hidden;
  padding: 22px 0 0;
  border: 1px solid #4b4c45;
  background: #141512;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.28), inset 0 0 0 6px #20211c;
}

.screen-evidence__head {
  display: flex;
  justify-content: space-between;
  padding: 0 24px 19px;
  border-bottom: 1px solid #42433c;
  color: #8e8e86;
  font-size: 9px;
}

.screen-rail {
  display: grid;
  grid-auto-columns: minmax(210px, 30%);
  grid-auto-flow: column;
  gap: 28px;
  overflow-x: auto;
  padding: 36px 38px 40px;
  scroll-snap-type: x mandatory;
  scrollbar-color: #66675e #24251f;
  scrollbar-width: thin;
}

.phone-proof {
  position: relative;
  margin: 0;
  scroll-snap-align: start;
}

.phone-proof > span {
  display: block;
  margin: 0 0 10px;
  color: #9e9d95;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.05em;
}

.phone-proof img {
  width: 100%;
  height: auto;
  border: 1px solid #42433c;
  border-radius: 28px;
  background: #090a08;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.34);
}

.principles {
  padding-block: clamp(110px, 14vw, 220px);
}

.section-heading--compact {
  padding-bottom: 76px;
  border-bottom: 1px solid var(--ink);
}

.principle-stack {
  border-bottom: 1px solid var(--seam);
}

.principle {
  display: grid;
  grid-template-columns: 100px minmax(350px, 0.86fr) minmax(280px, 0.7fr) minmax(190px, 0.3fr);
  gap: clamp(28px, 4vw, 70px);
  align-items: start;
  padding-block: 54px;
  border-bottom: 1px solid var(--seam);
}

.principle:last-child {
  border-bottom: 0;
}

.principle-no {
  color: var(--ink-soft);
  font-size: 10px;
}

.principle h3 {
  margin: 0;
  font-size: clamp(24px, 2.3vw, 38px);
  font-weight: 560;
  letter-spacing: -0.035em;
  line-height: 1.35;
}

.principle > p {
  margin: 4px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.85;
}

.principle-links {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding-top: 4px;
}

.principle-links a {
  color: var(--link);
  font-size: 10px;
  font-weight: 650;
}

.principle-links a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.exploration {
  padding-block: clamp(100px, 12vw, 180px);
  color: #efeadf;
  background: #22231f;
}

.exploration header {
  display: grid;
  grid-template-columns: 0.3fr 1fr 1fr;
  gap: clamp(34px, 6vw, 90px);
  align-items: start;
}

.exploration .section-index {
  color: #86867e;
}

.lab-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  padding: 8px 10px;
  border: 1px solid #505149;
  color: #a9a89f;
  font-size: 8px;
}

.exploration header h2 {
  grid-column: 2 / 4;
  max-width: 1100px;
  margin: 30px 0 0;
  font-size: clamp(40px, 5vw, 78px);
  font-weight: 520;
  letter-spacing: -0.055em;
  line-height: 1.15;
}

.exploration header > p:last-child {
  grid-column: 3;
  margin: 22px 0 0;
  color: #a3a199;
  font-size: 14px;
  line-height: 1.85;
}

.practice-grid {
  margin-top: 82px;
  border-top: 1px solid #55564e;
  border-right: 1px solid #45463f;
  border-left: 1px solid #45463f;
  background: #171815;
  box-shadow: inset 0 0 0 6px #20211c, 0 34px 80px rgba(0, 0, 0, 0.18);
}

.practice-tape {
  --practice-accent: #d18550;
  display: grid;
  grid-template-columns: minmax(150px, 0.22fr) minmax(0, 1fr);
  border-bottom: 1px solid #55564e;
}

.practice-tape--personal {
  --practice-accent: #89aa94;
  grid-template-columns: minmax(0, 1fr) minmax(150px, 0.22fr);
}

.practice-label {
  position: relative;
  display: grid;
  min-height: 480px;
  grid-template-rows: auto 1fr auto;
  padding: 32px 28px;
  overflow: hidden;
  border-right: 1px solid #4b4c45;
  background: #1c1d19;
}

.practice-tape--personal .practice-label {
  grid-column: 2;
  grid-row: 1;
  border-right: 0;
  border-left: 1px solid #4b4c45;
}

.practice-tape--personal .practice-body {
  grid-column: 1;
  grid-row: 1;
}

.practice-label span {
  color: #898980;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  writing-mode: vertical-rl;
}

.practice-label strong {
  align-self: center;
  justify-self: center;
  color: #e5e0d6;
  font-size: 24px;
  font-weight: 560;
  letter-spacing: -0.04em;
  writing-mode: vertical-rl;
}

.practice-label > i {
  position: relative;
  right: auto;
  bottom: auto;
  justify-self: end;
  width: 34px;
  height: 34px;
  border: 1px solid #505149;
}

.practice-label > i::before,
.practice-label > i::after {
  position: absolute;
  background: var(--practice-accent);
  content: "";
}

.practice-label > i::before {
  top: 8px;
  left: 8px;
  width: 6px;
  height: 6px;
  box-shadow: 11px 0 0 #4d4e47, 0 11px 0 #4d4e47, 11px 11px 0 var(--practice-accent);
}

.practice-label > i::after {
  right: 6px;
  bottom: 6px;
  width: 3px;
  height: 3px;
}

.practice-body {
  min-width: 0;
  padding: 48px 52px 34px;
}

.practice-heading {
  display: grid;
  grid-template-columns: minmax(140px, 0.26fr) minmax(0, 1fr);
  gap: 18px 44px;
  align-items: start;
}

.practice-heading > span {
  padding-top: 9px;
  color: var(--practice-accent);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.06em;
}

.practice-heading h3 {
  max-width: 920px;
  margin: 0;
  font-size: clamp(30px, 3.15vw, 50px);
  font-weight: 530;
  letter-spacing: -0.045em;
  line-height: 1.24;
}

.practice-heading p {
  grid-column: 2;
  max-width: 790px;
  margin: 0;
  color: #99988f;
  font-size: 12px;
  line-height: 1.85;
}

.practice-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 44px;
  border-top: 1px solid #4b4c45;
  border-bottom: 1px solid #4b4c45;
}

.practice-step {
  position: relative;
  min-height: 158px;
  padding: 24px 20px 22px;
  border-right: 1px solid #40413a;
}

.practice-step:last-child {
  border-right: 0;
}

.practice-step::before {
  position: absolute;
  top: -4px;
  left: 20px;
  width: 7px;
  height: 7px;
  background: var(--practice-accent);
  content: "";
}

.practice-step > span {
  color: #77776f;
  font-family: var(--mono);
  font-size: 8px;
}

.practice-step strong {
  display: block;
  margin-top: 26px;
  color: #e0dcd2;
  font-size: 15px;
  font-weight: 560;
}

.practice-step p {
  margin: 8px 0 0;
  color: #85857d;
  font-size: 10px;
  line-height: 1.7;
}

.practice-evidence {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 22px;
  align-items: center;
  padding-top: 22px;
  color: #99988f;
  font-size: 9px;
}

.practice-evidence p {
  margin: 0;
  line-height: 1.7;
}

.practice-evidence p span {
  display: block;
  margin-bottom: 4px;
  color: var(--practice-accent);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.05em;
}

.practice-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #aaa99f;
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 500;
  white-space: nowrap;
}

.practice-status i {
  width: 7px;
  height: 7px;
  border: 1px solid currentColor;
}

.practice-status--building i {
  background: var(--pending);
  box-shadow: 0 0 0 3px rgba(210, 156, 72, 0.11);
}

.practice-status--running i {
  background: var(--shipped);
  box-shadow: 0 0 0 3px rgba(86, 176, 111, 0.11);
}

.practice-boundary {
  display: grid;
  grid-template-columns: minmax(150px, 0.22fr) minmax(0, 1fr);
  gap: 0;
  align-items: center;
  padding: 0 52px 0 0;
  border-bottom: 1px solid #55564e;
  color: #bbb8ae;
  background: #20211c;
}

.practice-boundary span {
  align-self: stretch;
  padding: 24px 28px;
  border-right: 1px solid #4b4c45;
  color: #898980;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
}

.practice-boundary p {
  margin: 0;
  padding-left: 52px;
  font-size: clamp(16px, 1.65vw, 24px);
  font-weight: 520;
  letter-spacing: -0.025em;
  line-height: 1.55;
}

.about {
  display: grid;
  grid-template-columns: minmax(260px, 0.36fr) minmax(0, 1fr);
  gap: clamp(60px, 10vw, 180px);
  align-items: center;
  padding-block: clamp(110px, 13vw, 210px);
}

.about-mark {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  max-width: 430px;
  border: 1px solid var(--ink);
  box-shadow: inset 0 0 0 10px var(--paper), inset 0 0 0 11px var(--seam);
}

.about-mark::before,
.about-mark::after {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  content: "";
}

.about-mark::before {
  top: 18px;
  left: 18px;
}

.about-mark::after {
  right: 18px;
  bottom: 18px;
}

.about-pixels {
  position: absolute;
  inset: 38px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 9px;
}

.about-pixels i {
  display: grid;
  place-items: center;
  border: 1px solid var(--seam);
  font-family: var(--mono);
  font-style: normal;
}

.about-letter {
  font-size: clamp(36px, 4vw, 64px);
  font-weight: 650;
  line-height: 1;
}

.about-letter--dark {
  color: var(--paper);
  background: var(--ink);
}

.about-letter--light {
  color: var(--ink);
  background: var(--paper-soft);
}

.about-cell--status::after {
  display: block;
  width: 8px;
  height: 8px;
  background: var(--shipped);
  content: "";
}

.about-copy h2 {
  max-width: 1080px;
  margin: 0;
  font-size: clamp(40px, 4.8vw, 78px);
  font-weight: 550;
  letter-spacing: -0.055em;
  line-height: 1.16;
}

.about-copy > p:not(.section-index) {
  max-width: 720px;
  margin: 34px 0 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.9;
}

.contact {
  padding-block: clamp(88px, 10vw, 150px);
  color: var(--paper);
  background: var(--screen);
}

.contact-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(240px, 0.5fr) minmax(320px, 0.45fr);
  gap: clamp(38px, 5vw, 86px);
  align-items: start;
  width: var(--page);
  margin-inline: auto;
}

.contact .section-index {
  color: #929189;
}

.contact-copy h2 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(38px, 4vw, 68px);
  font-weight: 550;
  letter-spacing: -0.05em;
  line-height: 1.16;
}

.contact-copy > p:not(.section-index) {
  max-width: 720px;
  margin: 32px 0 0;
  color: #aaa99f;
  font-size: 15px;
  line-height: 1.9;
}

.contact-channels {
  display: grid;
  align-content: start;
  border-top: 1px solid var(--screen-line);
  font-style: normal;
}

.contact-channels a,
.contact-channels button {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-height: 66px;
  padding: 12px 0;
  border: 0;
  border-bottom: 1px solid var(--screen-line);
  color: var(--paper);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.contact-channels a:hover,
.contact-channels button:hover {
  color: #fff;
  background: var(--screen-soft);
}

.contact-channels span,
.contact-channels small {
  color: #85857d;
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.contact-channels strong {
  font-size: 13px;
  font-weight: 560;
  word-break: break-word;
}

.contact-channels small {
  grid-column: 2;
}

.copy-status {
  min-height: 28px;
  margin: 10px 0 0;
  color: var(--shipped);
  font-family: var(--mono);
  font-size: 9px;
}

.contact-qr {
  margin: 0;
  padding: 16px;
  color: var(--ink);
  background: #fff;
}

.contact-qr > span,
.contact-qr figcaption {
  display: block;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
}

.contact-qr > span {
  margin-bottom: 12px;
}

.contact-qr img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.contact-qr-code {
  display: block;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: #fff;
}

.contact-qr-code img {
  width: calc(100% * 888 / 760);
  max-width: none;
  transform: translate(-7.207%, -20.336%);
}

.contact-qr figcaption {
  margin-top: 12px;
  color: var(--ink-soft);
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 86px;
  padding: 0 48px;
  border-top: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.06em;
}

.site-footer span:nth-child(2) {
  color: var(--ink-soft);
}

.site-footer a {
  justify-self: end;
  color: var(--link);
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.capture-mode {
  scroll-behavior: auto !important;
  scrollbar-width: none;
}

.capture-mode::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

.capture-mode .site-header,
.capture-mode .system-diagram,
.capture-mode .screen-evidence,
.capture-mode .case-evidence-photo {
  position: relative;
  top: auto;
}

.capture-mode [data-reveal] {
  opacity: 1;
  transform: none;
}

@media (max-width: 1280px) {
  :root {
    --page: min(1180px, calc(100vw - 64px));
  }

  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(380px, 0.72fr);
    gap: 54px;
  }

  .hero h1 {
    font-size: clamp(47px, 5.4vw, 69px);
  }

  .career-device {
    min-height: 570px;
  }

  .case-file {
    grid-template-columns: minmax(0, 0.88fr) minmax(480px, 1.12fr);
    gap: 52px;
  }

  .system-diagram {
    min-height: 650px;
  }

  .screen-rail {
    grid-auto-columns: minmax(180px, 31%);
    gap: 22px;
    padding-inline: 26px;
  }
}

@media (max-width: 1120px) {
  :root {
    --page: calc(100vw - 48px);
  }

  .site-header {
    padding-inline: 24px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-copy {
    max-width: 950px;
  }

  .career-device {
    min-height: 520px;
  }

  .pixel-name span {
    aspect-ratio: 1.2;
  }

  .path-display {
    display: grid;
    grid-template-columns: 1fr 58px 1fr 58px 1fr;
    align-items: center;
    margin-top: 30px;
  }

  .path-trace {
    width: 100%;
    height: 1px;
    margin: 0;
    border-top: 1px solid #55564e;
    border-left: 0;
  }

  .path-trace i {
    margin: -2px 0 0;
  }

  .chapter-header {
    grid-template-columns: 92px minmax(0, 1fr);
  }

  .chapter-plate {
    grid-column: 2;
  }

  .case-file,
  .case-file--reverse {
    grid-template-columns: 1fr;
    gap: 58px;
  }

  .case-file--reverse .case-copy,
  .case-file--reverse > :last-child {
    grid-column: 1;
    grid-row: auto;
  }

  .system-diagram,
  .screen-evidence,
  .case-evidence-photo {
    position: relative;
    top: auto;
  }

  .system-diagram {
    min-height: 720px;
  }

  .screen-rail {
    grid-auto-columns: minmax(230px, 29%);
  }

  .chapter-archive {
    grid-template-columns: minmax(200px, 0.45fr) 1fr;
  }

  .chapter-archive > p {
    grid-column: 2;
  }

  .principle {
    grid-template-columns: 72px 1fr 0.8fr;
  }

  .principle-links {
    grid-column: 2 / 4;
    flex-direction: row;
  }

  .practice-tape {
    grid-template-columns: 112px minmax(0, 1fr);
  }

  .practice-label {
    min-height: 520px;
    padding-inline: 22px;
  }

  .practice-body {
    padding-inline: 36px;
  }

  .practice-heading {
    grid-template-columns: 1fr;
  }

  .practice-heading p {
    grid-column: 1;
  }

  .practice-flow {
    grid-template-columns: 1fr 1fr;
  }

  .practice-step:nth-child(2) {
    border-right: 0;
  }

  .practice-step:nth-child(-n + 2) {
    border-bottom: 1px solid #40413a;
  }

  .practice-evidence {
    grid-template-columns: 1fr 1fr;
  }

  .practice-status {
    grid-column: 1 / 3;
  }

  .practice-boundary {
    grid-template-columns: 112px minmax(0, 1fr);
    padding-right: 36px;
  }

  .practice-boundary p {
    padding-left: 36px;
  }
}

@media (max-width: 760px) {
  :root {
    --page: calc(100vw - 32px);
  }

  html {
    scroll-padding-top: 64px;
  }

  .site-header {
    min-height: 62px;
    padding-inline: 16px;
  }

  .brand-role {
    display: none;
  }

  .menu-button {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 61px;
    right: 0;
    left: 0;
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    align-items: stretch;
    justify-self: stretch;
    padding: 8px 16px 18px;
    border-bottom: 1px solid var(--ink);
    background: var(--paper-soft);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    min-height: 50px;
    border-bottom: 1px solid var(--seam);
  }

  .site-nav a::after {
    display: none;
  }

  .hero {
    gap: 58px;
    padding-block: 64px 86px;
  }

  .kicker {
    margin-bottom: 22px;
  }

  .hero h1 {
    font-size: clamp(34px, 8.7vw, 44px);
    letter-spacing: -0.06em;
  }

  .hero h1 em span {
    white-space: nowrap;
  }

  .hero-intro {
    margin-top: 26px;
    font-size: 15px;
    line-height: 1.85;
  }

  .hero-actions {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
    margin-top: 30px;
  }

  .career-device {
    min-height: 540px;
    padding: 20px;
    border-radius: 16px;
  }

  .pixel-name {
    gap: 5px;
  }

  .pixel-name span {
    aspect-ratio: 0.85;
    font-size: 17px;
  }

  .path-display {
    display: block;
    margin-top: 0;
  }

  .path-trace {
    width: auto;
    height: 24px;
    margin-left: 18px;
    border-top: 0;
    border-left: 1px solid #55564e;
  }

  .device-footer {
    right: 20px;
    bottom: 20px;
    left: 20px;
    grid-template-columns: auto 1fr;
  }

  .device-footer .status-label {
    display: none;
  }

  .career,
  .principles {
    padding-block: 98px;
  }

  .section-heading,
  .section-heading--compact {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .section-heading h2 {
    font-size: clamp(38px, 10.5vw, 54px);
  }

  .section-heading > p {
    font-size: 14px;
  }

  .career-rail {
    grid-template-columns: 1fr;
    margin-top: 60px;
  }

  .career-stop {
    min-height: 300px;
    border-right: 0;
    border-bottom: 1px solid var(--seam);
  }

  .career-stop:last-child {
    border-bottom: 0;
  }

  .stop-number {
    position: absolute;
    top: 60px;
    right: 28px;
    margin: 0;
  }

  .company-chapter {
    padding-block: 96px;
  }

  .chapter-header {
    grid-template-columns: 64px 1fr;
    gap: 20px;
    padding-bottom: 70px;
  }

  .chapter-stamp {
    width: 58px;
    height: 92px;
    padding: 8px;
  }

  .chapter-stamp strong {
    font-size: 35px;
  }

  .chapter-stamp::before,
  .chapter-stamp::after {
    display: none;
  }

  .chapter-title-wrap h2 {
    font-size: clamp(58px, 18vw, 88px);
  }

  .chapter-lead {
    margin-top: 26px;
    font-size: 16px;
  }

  .chapter-plate {
    grid-column: 1 / 3;
  }

  .case-file {
    gap: 44px;
    padding-block: 84px;
  }

  .case-copy h3 {
    font-size: clamp(36px, 10vw, 51px);
  }

  .case-summary {
    margin-bottom: 36px;
    font-size: 14px;
  }

  .fact-grid > div {
    grid-template-columns: 82px 1fr;
    gap: 14px;
  }

  .system-diagram {
    min-height: 590px;
  }

  .sensor-cluster {
    top: 104px;
    width: 220px;
    height: 220px;
  }

  .sensor-cluster::after {
    inset: 66px;
  }

  .sensor--a,
  .sensor--c {
    left: 81px;
  }

  .sensor--b,
  .sensor--d {
    top: 94px;
  }

  .logic-gate {
    top: 374px;
    width: 220px;
  }

  .service-window {
    right: 30px;
    bottom: 62px;
    left: 30px;
  }

  .photo-frame {
    top: 96px;
    right: 28px;
    left: 28px;
    height: 300px;
  }

  .edit-strip {
    right: 28px;
    bottom: 72px;
    left: 28px;
  }

  .device-field {
    top: 96px;
    right: 24px;
    left: 24px;
    height: 390px;
  }

  .device-node {
    width: 88px;
    height: 108px;
  }

  .device-node--phone {
    top: 140px;
    left: 12px;
  }

  .device-node--pc,
  .device-node--car {
    right: 12px;
  }

  .device-node--pc {
    top: 22px;
  }

  .device-node--car {
    bottom: 22px;
  }

  .live-screen {
    top: 94px;
    right: 26px;
    bottom: 66px;
    left: 26px;
    padding: 48px 18px 24px;
    border-radius: 28px;
  }

  .live-island {
    grid-template-columns: 36px 1fr auto;
    gap: 9px;
    padding: 12px;
  }

  .screen-rail {
    grid-auto-columns: minmax(190px, 72%);
    padding: 28px 24px 34px;
  }

  .chapter-archive {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .chapter-archive > p {
    grid-column: auto;
  }

  .archive-evidence-body {
    grid-template-columns: 1fr;
  }

  .archive-evidence-body img {
    width: min(100%, 360px);
    justify-self: center;
  }

  .principle {
    grid-template-columns: 54px 1fr;
    gap: 20px;
    padding-block: 42px;
  }

  .principle h3,
  .principle > p,
  .principle-links {
    grid-column: 2;
  }

  .principle-links {
    flex-direction: column;
  }

  .exploration {
    padding-block: 96px;
  }

  .exploration header {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .exploration header h2,
  .exploration header > p:last-child {
    grid-column: 1;
  }

  .exploration header h2 {
    margin-top: 20px;
    font-size: clamp(38px, 10.5vw, 54px);
  }

  .practice-grid {
    margin-top: 56px;
  }

  .practice-tape,
  .practice-tape--personal {
    grid-template-columns: 1fr;
  }

  .practice-label,
  .practice-tape--personal .practice-label {
    display: flex;
    grid-column: 1;
    grid-row: auto;
    min-height: auto;
    flex-direction: row;
    align-items: center;
    padding: 18px 20px;
    border-right: 0;
    border-bottom: 1px solid #4b4c45;
    border-left: 0;
  }

  .practice-tape--personal .practice-body {
    grid-column: 1;
    grid-row: auto;
  }

  .practice-label span,
  .practice-label strong {
    writing-mode: horizontal-tb;
  }

  .practice-label strong {
    margin-left: auto;
    font-size: 18px;
  }

  .practice-label > i {
    position: relative;
    right: auto;
    bottom: auto;
    display: block;
    flex: 0 0 26px;
    width: 26px;
    height: 26px;
    margin-left: 14px;
  }

  .practice-body {
    padding: 34px 20px 24px;
  }

  .practice-heading h3 {
    font-size: clamp(29px, 8.2vw, 40px);
  }

  .practice-flow {
    grid-template-columns: 1fr 1fr;
    margin-top: 32px;
  }

  .practice-step {
    min-height: 170px;
    padding-inline: 14px;
  }

  .practice-step::before {
    left: 14px;
  }

  .practice-evidence {
    grid-template-columns: 1fr;
  }

  .practice-status {
    grid-column: 1;
    white-space: normal;
  }

  .practice-boundary {
    grid-template-columns: 1fr;
    padding: 0;
  }

  .practice-boundary span {
    padding: 18px 20px;
    border-right: 0;
    border-bottom: 1px solid #4b4c45;
  }

  .practice-boundary p {
    padding: 24px 20px 28px;
  }

  .about {
    grid-template-columns: 1fr;
    gap: 64px;
    padding-block: 100px;
  }

  .about-mark {
    width: min(100%, 370px);
  }

  .about-copy h2 {
    font-size: clamp(38px, 10.5vw, 54px);
  }

  .contact-shell {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .contact-channels a,
  .contact-channels button {
    min-height: 48px;
  }

  .contact-qr {
    width: min(100%, 320px);
  }

  .site-footer {
    grid-template-columns: 1fr auto;
    gap: 12px;
    min-height: 92px;
    padding: 18px 16px;
  }

  .site-footer span:nth-child(2) {
    display: none;
  }
}

@media (max-width: 520px) {
  .device-topline {
    align-items: flex-start;
    gap: 8px;
  }

  .device-topline .serial {
    text-align: right;
  }

  .pixel-name span {
    height: 48px;
  }

  .chapter-title-wrap h2 small {
    display: block;
    margin-top: 12px;
    font-size: 0.28em;
  }

  .fact-grid > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .fact-grid dt {
    color: var(--chapter-accent);
  }

  .system-diagram {
    min-height: 540px;
  }

  .diagram-label {
    gap: 10px;
    padding-inline: 16px;
  }

  .photo-frame {
    height: 268px;
  }

  .edit-strip {
    right: 18px;
    left: 18px;
  }

  .edit-step {
    padding-inline: 4px;
    font-size: 8px;
  }

  .device-field {
    right: 14px;
    left: 14px;
  }

  .task-packet--two {
    display: none;
  }

  .live-screen {
    right: 14px;
    left: 14px;
  }

  .live-island strong {
    font-size: 9px;
  }

  .fallback-grid span,
  .fallback-grid strong {
    padding: 9px 7px;
    font-size: 8px;
  }

  .practice-flow {
    grid-template-columns: 1fr;
  }

  .practice-step,
  .practice-step:nth-child(2) {
    min-height: 132px;
    border-right: 0;
    border-bottom: 1px solid #40413a;
  }

  .practice-step:last-child {
    border-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .hero-actions,
  .site-footer {
    display: none;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .company-chapter,
  .exploration {
    break-inside: avoid;
  }
}