.page-about {
  --about-ink: #2C3E50;
  --about-ash: #EAECEE;
  --about-cream: #F5F0E6;
  --about-light: #ECF0F1;
  --about-line: #BDC3C7;
  --about-muted: #71808D;
  --about-pet: #E67E22;
  --about-anime: #F1C40F;
  --about-tech: #2ECC71;
  --about-archive: #3498DB;
  --about-pink: #FF6B9D;
  --about-ink-soft: rgba(236, 240, 241, 0.08);
}

.page-about .about-hero-bar {
  background: var(--about-ink);
  color: var(--about-light);
  padding: 32px 0 40px;
  border-bottom: 4px solid var(--about-pink);
}

.page-about .about-hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-about .about-breadcrumbs {
  font-family: var(--font-mono);
  font-size: 13px;
  color: #93A5B8;
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}

.page-about .about-breadcrumbs a {
  color: #93A5B8;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 157, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-breadcrumbs a:hover {
  color: var(--about-pink);
  border-color: var(--about-pink);
}

.page-about .about-breadcrumb-sep {
  color: #5D6D7E;
}

.page-about .about-breadcrumbs [aria-current="page"] {
  color: var(--about-pink);
}

.page-about .about-hero-title {
  font-family: var(--font-head);
  font-size: clamp(22px, 3.4vw, 36px);
  font-weight: 800;
  margin: 0 0 10px;
  letter-spacing: -0.4px;
  transform: skewX(-2deg);
  transform-origin: left center;
  line-height: 1.25;
}

.page-about .about-hero-sub {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: #93A5B8;
}

.page-about .about-layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px 20px 64px;
  display: block;
}

.page-about .about-sidebar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 12px 0 20px;
  border-bottom: 1px solid var(--about-line);
  margin-bottom: 4px;
}

.page-about .about-sidebar-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--about-muted);
  margin: 0;
  width: 100%;
}

.page-about .about-sidebar-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-sidebar-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--about-ink);
  text-decoration: none;
  border: 1px solid var(--about-line);
  padding: 6px 12px;
  background: var(--bg-panel-a);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-about .about-sidebar-link:hover {
  background: var(--about-pink);
  border-color: var(--about-pink);
  color: #fff;
}

.page-about .about-sidebar-link:focus-visible {
  outline: 2px solid var(--about-archive);
  outline-offset: 2px;
}

.page-about .about-sidebar-num {
  font-size: 11px;
  color: var(--about-archive);
}

.page-about .about-sidebar-link:hover .about-sidebar-num {
  color: #fff;
}

.page-about .about-sidebar-btn {
  margin-left: auto;
  font-size: 13px;
  padding: 8px 16px;
}

.page-about .about-panels {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-about .about-panel {
  border: 1px solid var(--about-line);
  border-radius: 0;
  padding: 24px 20px;
}

.page-about .about-panel--ink {
  background: var(--about-ink);
  color: var(--about-light);
  border-color: #1A2833;
}

.page-about .about-panel--ash {
  background: var(--about-ash);
  color: var(--about-ink);
}

.page-about .about-panel--cream {
  background: var(--about-cream);
  color: var(--about-ink);
}

.page-about .about-eyebrow {
  color: var(--about-pink);
}

.page-about .about-section-head {
  margin-bottom: 18px;
}

.page-about .about-section-head--light .eyebrow {
  color: var(--about-pink);
}

.page-about .about-section-head--light .section-title {
  color: var(--about-light);
}

.page-about .about-section-title {
  margin: 4px 0 0;
}

.page-about .about-position {
  display: grid;
  gap: 24px;
  align-items: center;
}

.page-about .about-position-text {
  display: flex;
  flex-direction: column;
}

.page-about .about-position-title {
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 800;
  margin: 6px 0 12px;
  line-height: 1.3;
}

.page-about .about-position-desc {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.8;
  color: #BDC3C7;
}

.page-about .about-strong {
  color: var(--about-yellow, #F1C40F);
  font-size: 1.15em;
}

.page-about .about-fact-row {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-fact-item {
  display: flex;
  align-items: baseline;
  gap: 6px;
  background: var(--about-ink-soft);
  border-left: 3px solid var(--about-archive);
  padding: 10px 14px;
}

.page-about .about-fact-item:nth-child(2) {
  border-left-color: var(--about-tech);
}

.page-about .about-fact-item:nth-child(3) {
  border-left-color: var(--about-pink);
}

.page-about .about-fact-num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--about-light);
  line-height: 1;
}

.page-about .about-fact-label {
  font-size: 12px;
  color: #93A5B8;
  font-family: var(--font-body);
}

.page-about .about-position-figure {
  margin: 0;
  border: 1px solid #40586B;
  background: #1A2833;
  padding: 8px;
}

.page-about .about-position-figure figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #93A5B8;
  padding: 8px 4px 2px;
  text-align: right;
}

.page-about .about-img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-img--hero {
  width: 100%;
}

.page-about .about-scope-content {
  display: grid;
  gap: 20px;
}

.page-about .about-scope-list-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .about-scope-rows {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .about-scope-row {
  display: grid;
  grid-template-columns: 14px 1fr auto auto;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--about-line);
  border-left: 5px solid var(--row-color, var(--about-line));
  background: #fff;
  padding: 12px 14px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-scope-row:hover {
  transform: translateX(6px);
  box-shadow: 4px 4px 0 rgba(44, 62, 80, 0.12);
}

.page-about .about-scope-row:focus-within {
  outline: 2px solid var(--about-archive);
  outline-offset: 2px;
}

.page-about .about-scope-row--pet {
  --row-color: var(--about-pet);
}

.page-about .about-scope-row--anime {
  --row-color: var(--about-anime);
}

.page-about .about-scope-row--tech {
  --row-color: var(--about-tech);
}

.page-about .about-scope-row--archive {
  --row-color: var(--about-archive);
}

.page-about .about-scope-chip {
  width: 14px;
  height: 14px;
  background: var(--row-color);
  display: block;
}

.page-about .about-scope-name {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--about-ink);
}

.page-about .about-scope-count {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--about-muted);
  background: var(--bg-panel-a);
  padding: 4px 8px;
  border: 1px solid var(--about-line);
}

.page-about .about-scope-link {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--about-archive);
  text-decoration: none;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.page-about .about-scope-row:hover .about-scope-link,
.page-about .about-scope-row:focus-within .about-scope-link {
  opacity: 1;
  transform: translateX(0);
}

.page-about .about-scope-link:hover {
  color: var(--about-pink);
}

.page-about .about-scope-total {
  display: flex;
  justify-content: flex-end;
  align-items: baseline;
  gap: 10px;
  margin-top: 6px;
  padding: 10px 14px;
  background: var(--about-ink);
  color: var(--about-light);
}

.page-about .about-scope-total-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #93A5B8;
}

.page-about .about-scope-total-num {
  font-family: var(--font-mono);
  font-size: 22px;
  color: #F1C40F;
}

.page-about .about-scope-figure {
  margin: 0;
  border: 1px solid var(--about-line);
  background: #fff;
  padding: 8px;
}

.page-about .about-scope-figure figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--about-muted);
  padding: 8px 4px 2px;
  text-align: right;
}

.page-about .about-cat-note {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-top: 3px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--about-ink);
  background: rgba(255, 255, 255, 0.4);
}

.page-about .about-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 8px;
}

.page-about .about-timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 16px;
  padding-bottom: 28px;
}

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

.page-about .about-timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  position: relative;
}

.page-about .about-timeline-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  background: var(--about-ink);
  color: var(--about-light);
  border: 2px solid var(--about-pink);
  padding: 6px 8px;
  white-space: nowrap;
}

.page-about .about-timeline-item:nth-child(2) .about-timeline-badge {
  background: #9B59B6;
  border-color: #9B59B6;
}

.page-about .about-timeline-item:nth-child(3) .about-timeline-badge {
  background: var(--status-old);
  border-color: var(--status-old);
}

.page-about .about-timeline-line {
  flex: 1;
  width: 2px;
  background: var(--about-line);
  min-height: 40px;
}

.page-about .about-timeline-item:last-child .about-timeline-line {
  display: none;
}

.page-about .about-timeline-body {
  border: 1px solid var(--about-line);
  background: #fff;
  padding: 14px 16px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.page-about .about-timeline-body:hover {
  box-shadow: 4px 4px 0 rgba(44, 62, 80, 0.12);
  transform: translateY(-2px);
}

.page-about .about-timeline-title {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--about-ink);
}

.page-about .about-timeline-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #4A5A69;
}

.page-about .about-version-grid {
  display: grid;
  gap: 20px;
  align-items: center;
  margin-top: 16px;
}

.page-about .about-version-card {
  background: var(--about-ink-soft);
  border-top: 4px solid var(--card-yellow);
  padding: 20px 18px;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-about .about-version-card:hover {
  background: rgba(236, 240, 241, 0.16);
  border-top-color: var(--about-pink);
}

.page-about .about-version-card:nth-child(2n) {
  border-top-color: var(--card-green);
}

.page-about .about-version-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--card-yellow);
  background: rgba(241, 196, 15, 0.12);
  padding: 4px 10px;
  margin-bottom: 10px;
}

.page-about .about-version-card:nth-child(2n) .about-version-badge {
  color: var(--card-green);
  background: rgba(46, 204, 113, 0.12);
}

.page-about .about-version-title {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--about-light);
}

.page-about .about-version-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: #BDC3C7;
}

.page-about .about-version-figure {
  margin: 0;
  border: 1px solid #40586B;
  background: #1A2833;
  padding: 8px;
}

.page-about .about-version-figure figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #93A5B8;
  padding: 8px 4px 2px;
  text-align: right;
}

.page-about .about-path-row {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid #40586B;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-about .about-path-intro {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: #93A5B8;
}

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

.page-about .about-path-tags .tag {
  text-decoration: none;
  border: 1px solid currentColor;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-about .about-path-tags .tag:hover {
  background: currentColor;
}

.page-about .about-path-tags .tag--orange:hover {
  color: var(--about-ink);
}

.page-about .about-path-tags .tag--yellow:hover {
  color: var(--about-ink);
}

.page-about .about-path-tags .tag--green:hover {
  color: var(--about-ink);
}

.page-about .about-path-tags .tag--blue:hover {
  color: var(--about-ink);
}

@media (min-width: 768px) {
  .page-about .about-hero-bar {
    padding: 40px 0 48px;
  }

  .page-about .about-panel {
    padding: 32px 32px;
  }

  .page-about .about-position {
    grid-template-columns: 1fr 300px;
    gap: 32px;
  }

  .page-about .about-scope-content {
    grid-template-columns: 1fr 320px;
    align-items: start;
  }

  .page-about .about-scope-link {
    opacity: 1;
    transform: none;
    color: var(--about-muted);
    font-size: 11px;
  }

  .page-about .about-version-grid {
    grid-template-columns: 1fr 260px 1fr;
    gap: 20px;
  }

  .page-about .about-sidebar {
    flex-wrap: nowrap;
  }
}

@media (min-width: 1024px) {
  .page-about .about-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 36px;
    align-items: start;
    padding-top: 40px;
  }

  .page-about .about-sidebar {
    position: sticky;
    top: 96px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    border-bottom: none;
    border-left: 4px solid var(--about-pink);
    padding: 4px 0 4px 16px;
    margin: 0;
  }

  .page-about .about-sidebar-kicker {
    margin-bottom: 12px;
  }

  .page-about .about-sidebar-nav {
    flex-direction: column;
    gap: 0;
  }

  .page-about .about-sidebar-link {
    border: none;
    border-bottom: 1px solid var(--about-line);
    background: none;
    padding: 10px 4px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-radius: 0;
    font-size: 14px;
  }

  .page-about .about-sidebar-link:hover {
    background: var(--about-pink);
    color: #fff;
    padding-left: 10px;
  }

  .page-about .about-sidebar-btn {
    margin: 16px 0 0;
    text-align: center;
  }

  .page-about .about-back-to-top {
    display: none;
  }

  .page-about .about-timeline-item {
    grid-template-columns: 120px 1fr;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-about .about-scope-row,
  .page-about .about-timeline-body,
  .page-about .about-version-card,
  .page-about .about-sidebar-link {
    transition-duration: 0.18s;
  }
}

.page-about {
  --about-yellow: currentColor;
}