.page-home {
  --home-edge: 2px solid var(--line-600);
  display: block;
  background: var(--ink-900);
  color: var(--paper-100);
  font-family: var(--font-body);
  font-size: var(--step-17);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-home figure,
.page-home p,
.page-home dl,
.page-home dd,
.page-home ol,
.page-home ul {
  margin: 0;
}

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

.page-home .link {
  display: inline-block;
  color: var(--cyan-400);
  border-bottom: 1px solid rgba(56, 225, 255, 0.45);
  text-decoration: none;
  font-size: var(--step-14);
}

.page-home .link:hover,
.page-home .link:focus-visible {
  color: var(--cyan-200);
  border-bottom-color: var(--cyan-200);
}

.page-home .body-note {
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--steel-400);
  max-width: 62ch;
}

/* ---------- hero ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  padding: 22px var(--gutter) 44px;
  background: linear-gradient(168deg, var(--ink-800) 0%, var(--ink-900) 68%);
  border-bottom: var(--home-edge);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(126deg, rgba(56, 225, 255, 0.2) 0%, rgba(56, 225, 255, 0) 56%);
  clip-path: polygon(0 100%, 0 44%, 100% 0, 100% 100%);
  pointer-events: none;
}

.page-home .hero-grid {
  position: relative;
  display: grid;
  gap: 32px;
  max-width: var(--container);
  margin: 0 auto;
}

.page-home .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: var(--step-12);
  letter-spacing: 0.12em;
  color: var(--steel-400);
}

.page-home .breadcrumb a {
  color: var(--steel-400);
  text-decoration: none;
}

.page-home .breadcrumb a:hover,
.page-home .breadcrumb a:focus-visible {
  color: var(--cyan-400);
}

.page-home .hero-eyebrow {
  margin-top: 22px;
  font-size: var(--step-12);
  letter-spacing: 0.2em;
  color: var(--cyan-400);
}

.page-home .hero-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 9vw, 82px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--paper-100);
  text-wrap: balance;
}

.page-home .hero-lede {
  margin-top: 18px;
  max-width: 40em;
  font-size: var(--step-17);
  line-height: 1.8;
  color: var(--paper-100);
}

.page-home .hero-index {
  list-style: none;
  margin-top: 26px;
  padding: 0;
  border-top: 1px solid var(--line-600);
}

.page-home .hero-index li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px solid rgba(42, 67, 112, 0.55);
  font-size: var(--step-14);
}

.page-home .hero-index .idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--cyan-400);
}

.page-home .hero-index .idx-name {
  color: var(--paper-100);
}

.page-home .hero-index .idx-note {
  font-size: var(--step-12);
  letter-spacing: 0.1em;
  color: var(--steel-400);
  white-space: nowrap;
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-home .hero-plate {
  position: relative;
  min-width: 0;
}

.page-home .hero-shot {
  border: var(--home-edge);
  background: var(--panel-700);
  overflow: hidden;
}

.page-home .hero-shot img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .compare-panel {
  position: relative;
  z-index: 2;
  margin-top: 14px;
  padding: 18px 16px 16px;
  background: var(--ink-800);
  border: var(--home-edge);
  box-shadow: var(--shadow-hard);
}

.page-home .compare-panel:focus-visible {
  outline: 2px solid var(--paper-100);
  outline-offset: 2px;
}

.page-home .compare-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line-600);
}

.page-home .compare-title {
  font-size: var(--step-12);
  letter-spacing: 0.16em;
  color: var(--steel-400);
}

.page-home .bar-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 58px;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
}

.page-home .bar-label {
  font-size: var(--step-12);
  letter-spacing: 0.1em;
  color: var(--cyan-400);
}

.page-home .bar-label--old {
  color: var(--steel-400);
}

.page-home .bar-track {
  position: relative;
  display: block;
  height: 14px;
  background: var(--ink-900);
  border: 1px solid var(--line-600);
}

.page-home .bar-fill {
  display: block;
  height: 100%;
}

.page-home .bar-fill--new {
  width: 40%;
  background: linear-gradient(90deg, var(--cyan-400), var(--orange-500));
}

.page-home .bar-fill--old {
  width: 100%;
  background: repeating-linear-gradient(90deg, var(--line-600) 0 6px, transparent 6px 12px);
}

.page-home .bar-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step-17);
  text-align: right;
  color: var(--paper-100);
}

.page-home .bar-num--old {
  color: var(--steel-400);
}

.page-home .bar-row--old {
  opacity: 0.45;
  transition: opacity 0.25s var(--ease);
}

.page-home .compare-panel:hover .bar-row--old,
.page-home .compare-panel:focus-within .bar-row--old,
.page-home .compare-panel:focus .bar-row--old {
  opacity: 1;
}

.page-home .compare-note {
  margin-top: 14px;
  font-size: var(--step-12);
  line-height: 1.7;
  color: var(--steel-400);
}

/* ---------- chapters ---------- */
.page-home .chapter {
  position: relative;
  padding: 44px var(--gutter) 56px;
  border-bottom: var(--home-edge);
}

.page-home .chapter-band {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--cyan-400), var(--cyan-500) 48%, var(--orange-500));
}

.page-home .chapter-inner {
  display: grid;
  gap: 26px;
  max-width: var(--container);
  margin: 0 auto;
}

.page-home .chapter-no {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(40px, 12vw, 76px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--line-600);
}

.page-home .chapter-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 5.2vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--paper-100);
  text-wrap: balance;
}

.page-home .chapter-lede {
  margin-top: 14px;
  max-width: 42em;
  font-size: var(--step-17);
  line-height: 1.8;
  color: var(--steel-400);
}

.page-home .chapter-body {
  display: grid;
  gap: 22px;
  min-width: 0;
}

/* ---------- 01 facts ---------- */
.page-home .fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-600);
  border: var(--home-edge);
}

.page-home .fact-grid > div {
  padding: 14px 16px;
  background: var(--ink-800);
}

.page-home .fact-grid dt {
  font-size: var(--step-12);
  letter-spacing: 0.16em;
  color: var(--steel-400);
}

.page-home .fact-grid dd {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step-22);
  line-height: 1.2;
  color: var(--paper-100);
}

/* ---------- 02 compare ---------- */
.page-home .two-col {
  display: grid;
  gap: 18px;
}

.page-home .shot {
  border: var(--home-edge);
  background: var(--panel-700);
  box-shadow: var(--shadow-hard-sm);
  overflow: hidden;
}

.page-home .shot img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .media-frame__caption {
  display: block;
  padding: 10px 12px;
  font-size: var(--step-12);
  letter-spacing: 0.06em;
  color: var(--steel-400);
  background: var(--ink-800);
  border-top: 1px solid var(--line-600);
}

.page-home .diff-list {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-home .diff-item {
  padding: 18px 16px;
  background: var(--ink-800);
  border: var(--home-edge);
  border-left: 6px solid var(--cyan-400);
}

.page-home .diff-item:first-child {
  border-left-color: var(--orange-500);
}

.page-home .diff-tag {
  display: inline-block;
  font-size: var(--step-12);
  letter-spacing: 0.18em;
  color: var(--steel-400);
}

.page-home .diff-num {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(40px, 11vw, 62px);
  line-height: 1;
}

.page-home .diff-num small {
  margin-left: 6px;
  font-family: var(--font-body);
  font-size: var(--step-14);
  color: var(--steel-400);
}

.page-home .diff-num--orange {
  color: var(--orange-500);
}

.page-home .diff-num--cyan {
  color: var(--cyan-400);
}

.page-home .diff-text {
  margin-top: 10px;
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--paper-100);
}

/* ---------- 03 filter ---------- */
.page-home .filter-head {
  display: grid;
  gap: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line-600);
}

.page-home .chip-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 2px 10px;
  scrollbar-width: thin;
}

.page-home .lg-chip {
  flex: 0 0 auto;
  appearance: none;
  background: var(--ink-800);
  color: var(--steel-400);
  border: 2px solid var(--line-600);
  padding: 8px 15px;
  font-family: var(--font-body);
  font-size: var(--step-14);
  line-height: 1.2;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-home .lg-chip:hover {
  border-color: var(--cyan-400);
  color: var(--paper-100);
}

.page-home .lg-chip:active {
  transform: translateY(2px);
}

.page-home .lg-chip:focus-visible {
  outline: 2px solid var(--paper-100);
  outline-offset: 2px;
}

.page-home .lg-chip.is-active,
.page-home .lg-chip[aria-pressed="true"] {
  background: var(--panel-700);
  border-color: var(--cyan-400);
  color: var(--cyan-400);
}

.page-home .filter-count {
  font-size: var(--step-12);
  letter-spacing: 0.14em;
  color: var(--steel-400);
}

.page-home .filter-count .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step-17);
  color: var(--cyan-400);
  margin-right: 4px;
}

.page-home .fixture-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-home .fixture {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 14px;
  padding: 12px 14px;
  background: var(--ink-800);
  border: 1px solid var(--line-600);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-home .fixture:hover {
  border-color: var(--cyan-400);
  background: var(--panel-700);
}

.page-home .fx-name {
  font-size: var(--step-17);
  font-weight: 500;
  color: var(--paper-100);
  overflow-wrap: anywhere;
}

.page-home .fx-meta {
  grid-column: 1;
  font-size: var(--step-12);
  letter-spacing: 0.08em;
  color: var(--steel-400);
}

.page-home .fx-flag {
  grid-row: 1 / span 2;
  align-self: center;
  padding: 2px 9px;
  font-size: var(--step-12);
  letter-spacing: 0.08em;
  color: var(--cyan-400);
  border: 1px solid var(--cyan-500);
  white-space: nowrap;
}

/* ---------- 04 export ---------- */
.page-home .export-grid {
  display: grid;
  gap: 28px;
}

.page-home .export-left,
.page-home .export-right {
  display: grid;
  gap: 18px;
  align-content: start;
  min-width: 0;
}

.page-home .pulse-wrap {
  position: relative;
  width: 136px;
  height: 136px;
}

.page-home .pulse-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.page-home .ring-track {
  fill: none;
  stroke: var(--line-600);
  stroke-width: 6;
}

.page-home .ring-run {
  fill: none;
  stroke: var(--cyan-400);
  stroke-width: 6;
  stroke-dasharray: 327 327;
  stroke-dashoffset: 0;
  animation: home-pulse-sweep 30s linear infinite;
}

@keyframes home-pulse-sweep {
  from {
    stroke-dashoffset: 327;
  }
  to {
    stroke-dashoffset: 0;
  }
}

.page-home .pulse-core {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 2px;
}

.page-home .pulse-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step-44);
  line-height: 1;
  color: var(--cyan-400);
}

.page-home .pulse-unit {
  font-size: var(--step-12);
  letter-spacing: 0.16em;
  color: var(--steel-400);
}

.page-home .step-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-home .step-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line-600);
}

.page-home .step-list li:first-child {
  padding-top: 0;
}

.page-home .step-no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--step-22);
  line-height: 1.2;
  color: var(--orange-500);
}

.page-home .step-list p {
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--steel-400);
}

.page-home .step-list strong {
  display: block;
  margin-bottom: 2px;
  font-size: var(--step-17);
  font-weight: 500;
  color: var(--paper-100);
}

/* ---------- 05 archive ---------- */
.page-home .layer-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .layer-list li {
  display: grid;
  gap: 6px;
  padding: 16px;
  background: var(--ink-800);
  border: var(--home-edge);
  border-left: 6px solid var(--cyan-400);
}

.page-home .layer-list li:nth-child(2) {
  border-left-color: var(--cyan-500);
}

.page-home .layer-list li:nth-child(3) {
  border-left-color: var(--orange-500);
}

.page-home .layer-no {
  font-family: var(--font-mono);
  font-size: var(--step-12);
  letter-spacing: 0.2em;
  color: var(--steel-400);
}

.page-home .layer-list strong {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step-22);
  line-height: 1.2;
  color: var(--paper-100);
}

.page-home .layer-list span:last-child {
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--steel-400);
}

/* ---------- 06 next ---------- */
.page-home .next-grid {
  display: grid;
  gap: 16px;
}

.page-home .next-card {
  display: grid;
  gap: 12px;
  align-content: start;
  justify-items: start;
  padding: 24px 20px;
  background: var(--ink-800);
  border: var(--home-edge);
  box-shadow: var(--shadow-hard-sm);
}

.page-home .next-card--hot {
  border-color: var(--orange-500);
  background: linear-gradient(158deg, rgba(255, 122, 47, 0.14), var(--ink-800) 62%);
}

.page-home .next-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step-22);
  line-height: 1.25;
  color: var(--paper-100);
}

.page-home .next-card p {
  font-size: var(--step-14);
  line-height: 1.8;
  color: var(--steel-400);
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-home .fact-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .filter-head {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-home .layer-list li {
    grid-template-columns: 74px minmax(0, 150px) minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 800px) {
  .page-home .two-col {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }

  .page-home .export-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 32px;
    align-items: start;
  }

  .page-home .next-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 20px;
  }
}

@media (min-width: 980px) {
  .page-home .hero {
    padding: 34px var(--gutter) 64px;
  }

  .page-home .hero-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 48px;
    align-items: start;
  }

  .page-home .hero-plate {
    margin-top: -18px;
  }

  .page-home .compare-panel {
    margin-top: -56px;
    margin-left: 28px;
  }

  .page-home .chapter {
    padding: 64px var(--gutter) 76px;
  }

  .page-home .chapter-inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 48px;
    align-items: start;
  }

  .page-home .chapter-head {
    position: sticky;
    top: 20px;
  }

  .page-home .chapter-title {
    font-size: clamp(34px, 3vw, 44px);
  }

  .page-home .fixture {
    padding: 14px 18px;
  }
}

@media (min-width: 1320px) {
  .page-home .hero-title {
    font-size: 82px;
  }

  .page-home .chapter-body {
    gap: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .ring-run {
    animation: none;
    stroke-dashoffset: 82;
  }

  .page-home .bar-row--old {
    opacity: 1;
    transition: none;
  }

  .page-home .lg-chip,
  .page-home .fixture {
    transition: none;
  }
}