.page-about {
  scroll-behavior: smooth;
  background: var(--main-bg);
  color: var(--text-high);
  font-family: var(--font-body);
  line-height: 1.7;
}

.page-about .page-about__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px 64px;
}

.page-about .breadcrumb {
  margin-bottom: 0;
  padding-top: 28px;
}

.page-about .about-hero {
  position: relative;
  margin-top: 24px;
  padding: 40px 24px 36px;
  background:
    repeating-linear-gradient(
      to bottom,
      transparent,
      transparent 3px,
      rgba(192, 255, 62, .045) 3px,
      rgba(192, 255, 62, .045) 4px
    ),
    linear-gradient(135deg, var(--section-deep-teal) 0%, var(--main-bg) 70%);
  border: 2px solid var(--border);
  box-shadow: var(--shadow-heavy);
}

.page-about .about-hero::before {
  content: "REC";
  position: absolute;
  right: 18px;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--accent-coral);
  border: 1px solid var(--accent-coral);
  padding: 2px 10px;
  transform: rotate(3deg);
  background: rgba(0, 0, 0, .55);
}

.page-about .about-hero__eyebrow {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent-amber);
  letter-spacing: .1em;
  margin-bottom: 18px;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-size: clamp(26px, 4.6vw, 46px);
  line-height: 1.18;
  margin: 0 0 18px;
  -webkit-text-stroke: 1px rgba(245, 166, 35, .3);
  color: var(--text-high);
  letter-spacing: .01em;
}

.page-about .about-hero__lead {
  color: var(--text-mid);
  font-size: 16px;
  max-width: 760px;
  margin: 0 0 26px;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .about-layout {
  margin-top: 40px;
}

.page-about .about-toc {
  background: var(--section-dark-purple);
  border: 2px solid var(--border);
  box-shadow: var(--shadow-heavy);
  padding: 22px 20px;
  margin-bottom: 32px;
}

.page-about .about-toc__kicker {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent-amber);
  letter-spacing: .14em;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.page-about .about-toc__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.page-about .about-toc__list li {
  margin-bottom: 2px;
}

.page-about .about-toc__list a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 10px 8px;
  color: var(--text-high);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: border-color .18s ease, background-color .18s ease;
}

.page-about .about-toc__list a:hover,
.page-about .about-toc__list a:focus-visible {
  border-left-color: var(--accent-fluorescent);
  background: rgba(255, 255, 255, .05);
}

.page-about .about-toc__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent-coral);
}

.page-about .about-toc__meta {
  border-top: 1px dashed var(--border);
  padding-top: 14px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-about .about-toc__meta span {
  color: var(--text-mid);
}

.page-about .about-toc__meta strong {
  color: var(--accent-yellow);
  font-size: 15px;
  text-align: right;
}

.page-about .about-content {
  min-width: 0;
}

.page-about .about-section {
  padding: 32px 0 38px;
  border-bottom: 2px solid var(--border);
}

.page-about .about-section:last-of-type {
  border-bottom: none;
}

.page-about .about-section--taxonomy {
  background: var(--section-deep-teal);
  padding-left: 20px;
  padding-right: 20px;
  border-left: 4px solid var(--accent-blue);
}

.page-about .about-section--updates {
  background: var(--section-ink-green);
  padding-left: 20px;
  padding-right: 20px;
  border-left: 4px solid var(--accent-amber);
}

.page-about .about-section--adaptation {
  background: var(--section-dark-purple);
  padding-left: 20px;
  padding-right: 20px;
  border-left: 4px solid var(--accent-coral);
}

.page-about .about-section__header {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 14px;
  margin-bottom: 26px;
}

.page-about .about-section__index {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--accent-fluorescent);
  line-height: 2;
}

.page-about .about-section__heading h2 {
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1.2;
  margin: 0 0 8px;
  color: var(--text-high);
}

.page-about .about-section--taxonomy .about-section__heading h2 {
  color: var(--accent-blue);
}

.page-about .about-section--updates .about-section__heading h2 {
  color: var(--accent-amber);
}

.page-about .about-section--adaptation .about-section__heading h2 {
  color: var(--accent-coral);
}

.page-about .about-section__heading p {
  color: var(--text-mid);
  font-size: 14px;
  margin: 0;
}

.page-about .about-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 26px;
}

.page-about .about-stat {
  background: var(--card-bg);
  border: 2px solid var(--border);
  box-shadow: var(--shadow-heavy);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-about .about-stat--amber {
  border-top: 4px solid var(--accent-amber);
}

.page-about .about-stat--coral {
  border-top: 4px solid var(--accent-coral);
}

.page-about .about-stat--blue {
  border-top: 4px solid var(--accent-blue);
}

.page-about .about-stat--yellow {
  border-top: 4px solid var(--accent-yellow);
}

.page-about .about-stat--magenta {
  border-top: 4px solid var(--tag-magenta);
}

.page-about .about-stat__label {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-mid);
}

.page-about .about-stat__value {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-high);
  overflow-wrap: anywhere;
}

.page-about .about-stat--amber .about-stat__value {
  color: var(--accent-amber);
}

.page-about .about-stat--coral .about-stat__value {
  color: var(--accent-coral);
}

.page-about .about-stat--blue .about-stat__value {
  color: var(--accent-blue);
}

.page-about .about-stat--yellow .about-stat__value {
  color: var(--accent-yellow);
}

.page-about .about-stat--magenta .about-stat__value {
  color: var(--tag-magenta);
}

.page-about .about-stat__unit {
  font-size: 13px;
  color: var(--text-mid);
}

.page-about .about-scope__note {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 24px;
  padding: 16px 18px;
  background: var(--section-ink-green);
  border-left: 4px solid var(--accent-amber);
}

.page-about .about-scope__note p {
  margin: 0;
  color: var(--text-mid);
  font-size: 15px;
}

.page-about .about-scope__film {
  display: block;
  max-width: 100%;
  height: auto;
  border: 2px solid var(--border);
  box-shadow: var(--shadow-heavy);
  filter: saturate(.95);
}

.page-about .about-tree-grid {
  display: grid;
  gap: 20px;
  margin-bottom: 28px;
}

.page-about .about-tree {
  background: var(--card-bg);
  border: 2px solid var(--border);
  box-shadow: var(--shadow-heavy);
  padding: 20px;
}

.page-about .about-tree__root {
  display: flex;
  justify-content: center;
  align-items: baseline;
  gap: 14px;
  background: var(--accent-amber);
  color: var(--main-bg);
  font-family: var(--font-display);
  font-size: 18px;
  padding: 12px 16px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-heavy);
}

.page-about .about-tree__root strong {
  font-family: var(--font-mono);
  font-size: 20px;
}

.page-about .about-tree__branches {
  display: grid;
  gap: 14px;
}

.page-about .about-tree__branch {
  border: 1px solid var(--border);
  background: var(--main-bg);
  padding: 14px;
}

.page-about .about-tree__branch-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent-amber);
  margin-bottom: 12px;
}

.page-about .about-tree__branch-head span {
  font-family: var(--font-display);
  font-size: 16px;
}

.page-about .about-tree__branch-head em {
  font-family: var(--font-mono);
  font-style: normal;
  color: var(--accent-coral);
  font-size: 14px;
}

.page-about .about-tree__leaves {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-tree__leaves span {
  font-size: 13px;
  background: var(--card-bg);
  color: var(--text-mid);
  padding: 4px 10px;
  border: 1px solid var(--border);
}

.page-about .about-tree-grid__img {
  display: block;
  width: 100%;
  max-width: 800px;
  height: auto;
  border: 2px solid var(--border);
  box-shadow: var(--shadow-heavy);
  align-self: center;
  justify-self: center;
}

.page-about .about-cloud-wrap {
  margin-top: 8px;
}

.page-about .about-cloud__title {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 14px;
}

.page-about .about-cloud__title span {
  font-family: var(--font-display);
  font-size: 18px;
}

.page-about .about-cloud__title em {
  font-family: var(--font-mono);
  font-style: normal;
  color: var(--text-mid);
  font-size: 14px;
}

.page-about .about-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 18px 16px;
  background: rgba(0, 0, 0, .25);
  border: 1px dashed var(--border);
}

.page-about .about-cloud__tag {
  font-size: 13px;
  line-height: 1.4;
  padding: 6px 12px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--text-high);
  cursor: default;
  transition: transform .15s ease, border-color .15s ease, background-color .15s ease;
}

.page-about .about-cloud__tag:hover {
  transform: scale(1.12);
  border-color: var(--accent-fluorescent);
  background: rgba(255, 255, 255, .08);
  z-index: 2;
}

.page-about .about-cloud__tag--lg {
  font-size: 18px;
  padding: 8px 16px;
}

.page-about .about-cloud__tag--md {
  font-size: 15px;
  padding: 7px 14px;
}

.page-about .about-cloud__tag--sm {
  font-size: 12px;
  padding: 4px 8px;
}

.page-about .about-cloud__tag--coral {
  border-color: var(--accent-coral);
  color: var(--accent-coral);
}

.page-about .about-cloud__tag--amber {
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

.page-about .about-cloud__tag--blue {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.page-about .about-cloud__tag--yellow {
  border-color: var(--accent-yellow);
  color: var(--accent-yellow);
}

.page-about .about-cloud__tag--magenta {
  border-color: var(--tag-magenta);
  color: var(--tag-magenta);
}

.page-about .about-taxonomy__more {
  margin-top: 22px;
  text-align: right;
}

.page-about .about-taxonomy__more a {
  color: var(--accent-blue);
  text-decoration: none;
  font-size: 15px;
  border-bottom: 1px dashed var(--accent-blue);
  padding-bottom: 2px;
}

.page-about .about-taxonomy__more a:hover {
  color: var(--accent-fluorescent);
  border-bottom-color: var(--accent-fluorescent);
}

.page-about .about-updates__grid {
  display: grid;
  gap: 28px;
}

.page-about .about-updates__main {
  min-width: 0;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 26px 46px;
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__seq {
  position: absolute;
  left: 0;
  top: 4px;
  width: 28px;
  height: 28px;
  background: var(--accent-amber);
  color: var(--main-bg);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  border: 2px solid var(--main-bg);
}

.page-about .about-timeline__body {
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-heavy);
  padding: 16px;
  margin-bottom: 10px;
}

.page-about .about-timeline__code {
  font-family: var(--font-mono);
  color: var(--accent-yellow);
  font-size: 15px;
}

.page-about .about-timeline__title {
  display: block;
  color: var(--text-mid);
  font-size: 14px;
  margin-top: 2px;
}

.page-about .about-timeline__body p {
  font-size: 14px;
  color: var(--text-mid);
  margin: 8px 0 0;
}

.page-about .about-updates__footnote {
  color: var(--text-mid);
  font-size: 14px;
  border-left: 3px solid var(--accent-fluorescent);
  padding-left: 14px;
  margin-bottom: 18px;
}

.page-about .about-updates__aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.page-about .about-live-card {
  background: var(--section-dark-purple);
  border: 2px solid var(--accent-coral);
  padding: 20px;
  box-shadow: var(--shadow-heavy);
  position: relative;
  overflow: hidden;
}

.page-about .about-live-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 2px,
    rgba(192, 255, 62, .12) 2px,
    rgba(192, 255, 62, .12) 3px
  );
}

.page-about .about-live-card__kicker {
  font-family: var(--font-mono);
  color: var(--accent-coral);
  font-size: 13px;
  letter-spacing: .12em;
}

.page-about .about-live-card__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 28px;
  color: var(--text-high);
  margin-top: 8px;
}

.page-about .about-live-card__duration {
  display: block;
  color: var(--accent-yellow);
  font-size: 14px;
  margin-top: 4px;
}

.page-about .about-live-card p {
  color: var(--text-mid);
  font-size: 14px;
  margin: 12px 0 0;
}

.page-about .about-updates__img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  border: 2px solid var(--border);
  box-shadow: var(--shadow-heavy);
  align-self: center;
}

.page-about .about-adaptation__tablewrap {
  margin-bottom: 24px;
}

.page-about .about-adaptation__table {
  width: 100%;
  border-collapse: collapse;
}

.page-about .about-adaptation__table th,
.page-about .about-adaptation__table td {
  border: 1px solid var(--border);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

.page-about .about-adaptation__table th {
  font-family: var(--font-mono);
  font-size: 14px;
  background: var(--section-ink-green);
  color: var(--accent-yellow);
  white-space: nowrap;
}

.page-about .about-adaptation__table td {
  font-size: 15px;
  color: var(--text-high);
  background: var(--card-bg);
}

.page-about .about-adaptation__table td:first-child {
  font-family: var(--font-mono);
  color: var(--accent-amber);
  white-space: nowrap;
}

.page-about .about-adaptation__table a {
  color: var(--accent-blue);
  text-decoration: none;
  border-bottom: 1px dashed var(--accent-blue);
}

.page-about .about-adaptation__table a:hover {
  color: var(--accent-fluorescent);
  border-bottom-color: var(--accent-fluorescent);
}

.page-about .about-adaptation__note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: var(--section-ink-green);
  border: 1px solid var(--border);
}

.page-about .about-adaptation__note p {
  margin: 0;
  color: var(--text-mid);
  font-size: 14px;
}

@media (min-width: 640px) {
  .page-about .page-about__inner {
    padding-left: 24px;
    padding-right: 24px;
  }

  .page-about .about-stats-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-tree__branches {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-about .about-layout {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-toc {
    position: sticky;
    top: 24px;
    margin-bottom: 0;
  }

  .page-about .about-stats-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-about .about-tree-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  }

  .page-about .about-updates__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 32px;
  }

  .page-about .about-section__header {
    grid-template-columns: 80px 1fr;
  }
}