.page-home {
  --home-paper-muted: #4A5158;
  --home-paper-line: rgba(20, 24, 30, 0.18);
  --home-paper-strong: rgba(20, 24, 30, 0.42);
  background: var(--ink-900);
  color: var(--paper);
  overflow-x: hidden;
}

.page-home .breadcrumb-row {
  padding-block: 20px 8px;
}

/* ---------- Hero ---------- */
.page-home .hero {
  padding-block: 8px 56px;
  position: relative;
}

.page-home .hero-frame {
  position: relative;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 90, 31, 0.05) 0%, transparent 55%),
    var(--ink-850);
  padding: 64px 24px 40px;
  overflow: hidden;
}

.page-home .hero-frame::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 18px;
  background:
    repeating-linear-gradient(90deg,
      var(--line-strong) 0,
      var(--line-strong) 1px,
      transparent 1px,
      transparent 26px);
  border-bottom: 1px solid var(--line);
  pointer-events: none;
}

.page-home .hero-frame__corner {
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--orange);
  z-index: 2;
  pointer-events: none;
}
.page-home .hero-frame__corner--tl { top: 24px; left: -1px; border-right: none; border-bottom: none; }
.page-home .hero-frame__corner--tr { top: 24px; right: -1px; border-left: none; border-bottom: none; }
.page-home .hero-frame__corner--bl { bottom: -1px; left: -1px; border-right: none; border-top: none; }
.page-home .hero-frame__corner--br { bottom: -1px; right: -1px; border-left: none; border-top: none; }

.page-home .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-home .hero-copy { position: relative; z-index: 1; }

.page-home .hero-copy h1 {
  font-size: var(--fs-h1);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 14px 0 20px;
  color: var(--paper);
}

.page-home .hero-copy .lede {
  color: var(--slate);
  max-width: 48ch;
  margin-bottom: 28px;
  font-size: var(--fs-body);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero-visual {
  position: relative;
  border: 1px solid var(--line-strong);
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--ink-800);
}

.page-home .hero-visual__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.85) contrast(1.05);
}

.page-home .hero-visual__version {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 10px 14px;
  background: rgba(7, 10, 15, 0.92);
  border: 1px solid var(--orange);
  display: flex;
  flex-direction: column;
  gap: 4px;
  animation: home-version-flip 560ms var(--ease) both;
  z-index: 2;
}

.page-home .hero-visual__version .num {
  font-family: var(--font-mono);
  color: var(--paper);
  font-size: 1.875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}

.page-home .hero-visual__version small {
  font-family: var(--font-mono);
  color: var(--orange);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-home .hero-visual__ticks {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 22px;
  background:
    repeating-linear-gradient(90deg,
      rgba(233, 224, 207, 0.32) 0,
      rgba(233, 224, 207, 0.32) 1px,
      transparent 1px,
      transparent 30px);
  border-top: 1px solid var(--line);
  pointer-events: none;
}

@keyframes home-version-flip {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 900px) {
  .page-home .hero-frame { padding: 72px 56px 56px; }
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 56px;
    align-items: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero-visual__version { animation: none; }
}

/* ---------- Tracks ---------- */
.page-home .tracks {
  padding-block: 16px 64px;
}

.page-home .tracks-head {
  max-width: 720px;
  margin-bottom: 32px;
}

.page-home .tracks-head h2 {
  font-size: var(--fs-h2);
  color: var(--paper);
  margin: 12px 0 16px;
  letter-spacing: -0.015em;
}

.page-home .tracks-intro {
  color: var(--slate);
  font-size: var(--fs-body);
  max-width: 62ch;
}

.page-home .segmented {
  display: block;
  border: none;
  background: transparent;
  padding: 0;
}

.page-home .track-tablist {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--line);
  border-bottom: none;
  background: var(--ink-800);
}

.page-home .segmented__tab {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  background: var(--ink-800);
  border: none;
  border-bottom: 1px solid var(--line);
  color: var(--slate);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  min-height: 56px;
  transition: background var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}

.page-home .segmented__tab[aria-selected="true"] {
  background: var(--ink-700);
  color: var(--paper);
  box-shadow: inset 0 -2px 0 var(--orange);
}

.page-home .segmented__tab:hover { color: var(--paper); }

.page-home .segmented__tab:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: -3px;
}

.page-home .track-tab__num {
  color: var(--orange);
  font-size: var(--fs-small);
  font-family: var(--font-mono);
}

@media (min-width: 700px) {
  .page-home .track-tablist {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-home .segmented__tab {
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    min-height: 68px;
  }
  .page-home .segmented__tab:last-child { border-right: none; }
}

.page-home .track-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 32px 24px;
  border: 1px solid var(--line);
  background: var(--ink-850);
}

.page-home .track-panel[hidden] { display: none; }

.page-home .track-panel__body h3 {
  font-size: var(--fs-h3);
  color: var(--paper);
  margin: 10px 0 12px;
  letter-spacing: -0.01em;
}

.page-home .track-panel__body > p {
  color: var(--slate);
  font-size: var(--fs-body);
  margin-bottom: 20px;
  max-width: 56ch;
}

.page-home .track-list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  border-top: 1px solid var(--line);
}

.page-home .track-list li {
  position: relative;
  padding: 12px 0 12px 22px;
  border-bottom: 1px solid var(--line);
  color: var(--paper);
  font-size: var(--fs-small);
  line-height: 1.7;
}

.page-home .track-list li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 20px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

.page-home .track-panel__side {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-home .track-panel__meta {
  margin: 0;
  padding: 12px 16px;
  background: var(--ink-900);
  border: 1px solid var(--line);
  font-size: var(--fs-small);
  color: var(--slate);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-home .track-panel__meta .num {
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

@media (min-width: 800px) {
  .page-home .track-panel {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    padding: 40px;
    gap: 40px;
  }
  .page-home .track-panel__side {
    border-top: none;
    border-left: 1px solid var(--line);
    padding-top: 0;
    padding-left: 24px;
    justify-content: flex-start;
  }
}

.page-home .track-figure {
  margin: 32px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-home .track-figure img {
  width: 100%;
  height: auto;
  display: block;
}

.page-home .track-figure figcaption {
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  color: var(--slate);
  border-top: 1px solid var(--line);
  letter-spacing: 0.04em;
}

/* ---------- Timeline ---------- */
.page-home .timeline-band {
  padding-block: 32px 72px;
  border-top: 1px solid var(--line);
}

.page-home .timeline-band h2 {
  font-size: var(--fs-h2);
  color: var(--paper);
  margin: 12px 0 32px;
  letter-spacing: -0.015em;
}

.page-home .timeline-nav {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line-strong);
  margin-bottom: 40px;
}

.page-home .timeline-nav::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--orange) 0%, var(--cyan) 100%);
  opacity: 0.45;
}

.page-home .timeline-node {
  position: relative;
  padding: 28px 12px 0;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--paper);
  text-decoration: none;
  transition: color var(--dur-1) var(--ease);
}

.page-home .timeline-node:last-child { border-right: none; }

.page-home .timeline-node::before {
  content: '';
  position: absolute;
  top: -5px;
  left: 12px;
  width: 9px;
  height: 9px;
  background: var(--ink-900);
  border: 1px solid var(--orange);
  transition: background var(--dur-1) var(--ease);
}

.page-home .timeline-node:hover::before,
.page-home .timeline-node:focus-visible::before {
  background: var(--orange);
}

.page-home .timeline-node:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
}

.page-home .timeline-node__num {
  font-family: var(--font-mono);
  color: var(--orange);
  font-size: var(--fs-small);
  letter-spacing: 0.12em;
}

.page-home .timeline-node__label {
  color: var(--paper);
  font-size: var(--fs-small);
  font-weight: 600;
}

.page-home .timeline-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-home .timeline-step {
  padding: 24px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  scroll-margin-top: 120px;
  transition: border-color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease);
}

.page-home .timeline-step:target {
  border-color: var(--cyan);
}

.page-home .timeline-step__tag {
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: var(--fs-mini);
  letter-spacing: 0.14em;
  margin-bottom: 10px;
}

.page-home .timeline-step h3 {
  font-size: var(--fs-h3);
  color: var(--paper);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.page-home .timeline-step p:last-child {
  color: var(--slate);
  font-size: var(--fs-small);
  line-height: 1.8;
}

@media (min-width: 800px) {
  .page-home .timeline-detail {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .page-home .timeline-step { padding: 28px 24px; }
}

/* ---------- Adapt (paper zone) ---------- */
.page-home .adapt {
  margin-block: 0;
  padding-block: 72px;
  background: var(--paper);
  color: var(--paper-ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-home .adapt .eyebrow {
  color: var(--orange);
}

.page-home .adapt-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-home .adapt-main h2 {
  font-size: var(--fs-h2);
  color: var(--paper-ink);
  margin: 12px 0 16px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.page-home .adapt-main > p {
  color: var(--home-paper-muted);
  font-size: var(--fs-body);
  line-height: 1.8;
  max-width: 54ch;
}

.page-home .adapt-steps {
  list-style: none;
  padding: 0;
  margin: 24px 0 28px;
  border-top: 1px solid var(--home-paper-line);
}

.page-home .adapt-steps li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--home-paper-line);
  color: var(--paper-ink);
  font-size: var(--fs-small);
  font-weight: 500;
}

.page-home .adapt-step__num {
  font-family: var(--font-mono);
  color: var(--orange);
  font-weight: 700;
  font-size: var(--fs-small);
  min-width: 32px;
  letter-spacing: 0.1em;
}

.page-home .adapt .btn--primary {
  color: var(--ink-900);
  border-color: var(--orange);
}

.page-home .adapt-side {
  margin: 0;
  border: 1px solid var(--home-paper-strong);
  background: var(--ink-800);
  align-self: stretch;
  display: flex;
  flex-direction: column;
}

.page-home .adapt-side img {
  width: 100%;
  height: auto;
  display: block;
}

.page-home .adapt-side figcaption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  color: var(--paper);
  background: var(--ink-800);
  border-top: 1px solid var(--home-paper-strong);
  letter-spacing: 0.04em;
}

@media (min-width: 900px) {
  .page-home .adapt-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 60px;
    align-items: center;
  }
}

/* ---------- Updates ---------- */
.page-home .updates {
  padding-block: 72px;
}

.page-home .updates-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.page-home .updates-head h2 {
  font-size: var(--fs-h2);
  color: var(--paper);
  margin: 12px 0 0;
  letter-spacing: -0.015em;
}

.page-home .updates-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-home .updates-list > li {
  border-bottom: 1px solid var(--line);
}

.page-home .update-item summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "date icon"
    "title icon";
  align-items: center;
  gap: 6px 20px;
  padding: 22px 4px;
  transition: transform var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}

.page-home .update-item summary::-webkit-details-marker { display: none; }

.page-home .update-item summary:hover {
  transform: translateX(6px);
}

.page-home .update-item summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
}

.page-home .update-item__date {
  grid-area: date;
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  color: var(--orange);
  letter-spacing: 0.14em;
}

.page-home .update-item__title {
  grid-area: title;
  color: var(--paper);
  font-size: var(--fs-h3);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.page-home .update-item__icon {
  grid-area: icon;
  width: 28px;
  height: 28px;
  border: 1px solid var(--line-strong);
  position: relative;
  flex-shrink: 0;
  transition: border-color var(--dur-1) var(--ease);
}

.page-home .update-item__icon::before,
.page-home .update-item__icon::after {
  content: '';
  position: absolute;
  background: var(--cyan);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.page-home .update-item__icon::before {
  width: 11px;
  height: 1px;
}

.page-home .update-item__icon::after {
  width: 1px;
  height: 11px;
  transition: transform var(--dur-2) var(--ease), opacity var(--dur-2) var(--ease);
}

.page-home .update-item[open] .update-item__icon {
  border-color: var(--cyan);
}

.page-home .update-item[open] .update-item__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.page-home .update-item__body {
  padding: 0 4px 24px;
  color: var(--slate);
  font-size: var(--fs-small);
  line-height: 1.8;
  max-width: 68ch;
}

/* ---------- Texture band ---------- */
.page-home .texture-band {
  position: relative;
  margin-block: 8px 0;
  border-block: 1px solid var(--line);
  overflow: hidden;
  isolation: isolate;
}

.page-home .texture-band__img {
  display: block;
  width: 100%;
  height: 280px;
  object-fit: cover;
  filter: saturate(0.5) contrast(1.1) brightness(0.5);
}

.page-home .texture-band__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px;
  max-width: 760px;
  background: linear-gradient(90deg, rgba(7, 10, 15, 0.85) 0%, rgba(7, 10, 15, 0.35) 80%);
}

.page-home .texture-band__line {
  font-size: var(--fs-h3);
  color: var(--paper);
  margin-top: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.5;
  max-width: 40ch;
}

@media (min-width: 800px) {
  .page-home .texture-band__img { height: 380px; }
  .page-home .texture-band__overlay { padding: 56px; }
}

/* ---------- Contact ---------- */
.page-home .contact-block {
  padding-block: 72px 88px;
  border-top: 1px solid var(--line);
}

.page-home .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-home .contact-copy h2 {
  font-size: var(--fs-h2);
  color: var(--paper);
  margin: 12px 0 16px;
  letter-spacing: -0.015em;
}

.page-home .contact-copy p {
  color: var(--slate);
  font-size: var(--fs-body);
  line-height: 1.8;
  max-width: 46ch;
  margin-bottom: 24px;
}

.page-home .contact-list {
  margin: 0;
  border-top: 1px solid var(--line-strong);
}

.page-home .contact-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .contact-item__label {
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  color: var(--orange);
  letter-spacing: 0.14em;
}

.page-home .contact-item__value {
  margin: 0;
  color: var(--paper);
  font-size: var(--fs-body);
  line-height: 1.6;
  word-break: break-word;
}

.page-home .contact-item__value--mono {
  font-family: var(--font-mono);
  color: var(--cyan);
  letter-spacing: 0.04em;
}

@media (min-width: 600px) {
  .page-home .contact-item {
    grid-template-columns: 108px 1fr;
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 800px) {
  .page-home .contact-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }
}
<<<END>>>