.page-about {
  --about-orange: #FF6B35;
  --about-yellow: #FFC300;
  --about-teal: #00A8A8;
  --about-dark: #1F3A2D;
  --about-paper: #FEFCF7;
  --about-bg: #F5F0E6;
  --about-ink: #1A1A1A;
  --about-line: #B8B8B8;
  --about-accent: #E91E63;
  background: var(--about-bg);
  color: var(--about-ink);
  font-family: var(--font-sans);
  line-height: 1.6;
}
.page-about .breadcrumb {
  padding-top: 28px;
}
.page-about .about-intro {
  padding: 28px 0 40px;
}
.page-about .about-intro h1 {
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 10px 0 16px;
}
.page-about .about-intro__desc {
  max-width: 72ch;
  font-size: 1rem;
  color: rgba(26, 26, 26, 0.82);
  border-left: 6px solid var(--about-orange);
  padding-left: 16px;
}
.page-about .about-scope {
  background: var(--about-paper);
  padding: 40px 0;
}
.page-about .about-scope__grid {
  display: grid;
  gap: 28px;
  margin-top: 32px;
}
.page-about .about-scope__col {
  border-top: 6px solid var(--about-dark);
  padding-top: 18px;
}
.page-about .about-scope__col--out {
  border-top-color: var(--about-orange);
}
.page-about .about-scope__heading {
  font-size: 1.25rem;
  font-weight: 900;
  margin-bottom: 8px;
}
.page-about .about-scope__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .about-scope__item {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--about-line);
}
.page-about .about-scope__item:last-child {
  border-bottom: 0;
}
.page-about .scope-icon {
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  color: var(--about-paper);
  margin-top: 2px;
}
.page-about .scope-icon--yes {
  background: var(--about-dark);
}
.page-about .scope-icon--no {
  background: var(--about-orange);
}
.page-about .scope-icon--yes::after {
  content: "✓";
}
.page-about .scope-icon--no::after {
  content: "✕";
}
.page-about .about-scope__text strong {
  display: block;
  font-size: 1rem;
}
.page-about .about-scope__text p {
  margin: 4px 0 0;
  font-size: 0.9rem;
  color: rgba(26, 26, 26, 0.72);
}
.page-about .about-taxonomy {
  background: var(--about-dark);
  color: var(--about-paper);
  padding: 48px 0;
}
.page-about .about-taxonomy__layout {
  display: grid;
  gap: 36px;
  margin-top: 32px;
}
.page-about .tax-tree-root {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--about-orange);
  padding: 10px 18px;
  border-radius: 4px;
  font-weight: 900;
  margin-bottom: 20px;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.25);
}
.page-about .tax-tree-root__name {
  font-size: 1.1rem;
}
.page-about .tax-tree-root__count {
  background: var(--about-paper);
  color: var(--about-ink);
  padding: 2px 10px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-weight: 700;
}
.page-about .tax-tree {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .tax-branch {
  margin-bottom: 18px;
}
.page-about .tax-branch__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(255, 255, 255, 0.08);
  padding: 10px 14px;
  border-left: 6px solid var(--about-yellow);
  transition: background 0.15s;
}
.page-about .tax-branch__head:hover {
  background: rgba(255, 255, 255, 0.15);
}
.page-about .tax-branch__name {
  font-weight: 900;
  font-size: 1.05rem;
}
.page-about .tax-branch__count,
.page-about .tax-leaf em {
  font-family: var(--font-mono);
  font-style: normal;
  background: rgba(255, 255, 255, 0.12);
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
}
.page-about .tax-leaf {
  list-style: none;
  margin: 8px 0 0;
  padding: 0 0 0 26px;
  border-left: 2px dashed rgba(255, 255, 255, 0.35);
}
.page-about .tax-leaf li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 12px;
  font-size: 0.92rem;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}
.page-about .tax-leaf li:hover {
  background: rgba(255, 255, 255, 0.06);
}
.page-about .about-taxonomy__figure .figure-frame {
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.18);
}
.page-about .about-tags {
  background: var(--about-bg);
  padding: 48px 0;
}
.page-about .about-tags__layout {
  display: grid;
  gap: 36px;
  margin-top: 32px;
}
.page-about .about-tags__group {
  margin-bottom: 20px;
}
.page-about .about-tags__group-title {
  font-weight: 900;
  font-size: 0.95rem;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}
.page-about .about-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.92rem;
  margin: 0 8px 8px 0;
  border: 2px solid transparent;
}
.page-about .about-tag em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.82rem;
  opacity: 0.8;
}
.page-about .about-tag--hot {
  background: var(--about-orange);
  color: #fff;
  border-color: var(--about-ink);
  box-shadow: 3px 3px 0 rgba(26, 26, 26, 0.2);
  font-size: 1.05rem;
  padding: 8px 16px;
}
.page-about .about-tag--normal {
  background: var(--about-teal);
  color: #fff;
}
.page-about .about-tag--minor {
  background: var(--about-paper);
  color: var(--about-ink);
  border-color: var(--about-line);
}
.page-about .about-tags__legend {
  background: var(--about-paper);
  border-top: 6px solid var(--about-yellow);
  padding: 20px;
  box-shadow: 6px 6px 0 rgba(26, 26, 26, 0.12);
}
.page-about .about-tags__legend h3 {
  font-size: 1.1rem;
  font-weight: 900;
  margin: 0 0 12px;
}
.page-about .about-tags__legend ul {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}
.page-about .about-tags__legend li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  font-size: 0.92rem;
}
.page-about .legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
  flex: 0 0 12px;
}
.page-about .legend-swatch--hot {
  background: var(--about-orange);
  border: 2px solid var(--about-ink);
}
.page-about .legend-swatch--normal {
  background: var(--about-teal);
}
.page-about .legend-swatch--minor {
  background: var(--about-paper);
  border: 1px solid var(--about-line);
}
.page-about .about-tags__legend p {
  font-size: 0.92rem;
  color: rgba(26, 26, 26, 0.72);
}
.page-about .about-tags__legend .btn {
  margin-top: 6px;
}
.page-about .about-updates {
  background: var(--about-yellow);
  color: var(--about-ink);
  padding: 48px 0;
}
.page-about .about-updates__figure {
  background: var(--about-paper);
  border: 3px solid var(--about-ink);
  box-shadow: 6px 6px 0 rgba(26, 26, 26, 0.25);
  margin-bottom: 32px;
}
.page-about .about-updates__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 28px 0 32px;
}
.page-about .about-stat {
  background: var(--about-ink);
  color: var(--about-paper);
  padding: 18px 14px;
  text-align: center;
  border: 2px solid var(--about-ink);
  box-shadow: 4px 4px 0 rgba(26, 26, 26, 0.18);
  transition: transform 0.15s, box-shadow 0.15s;
}
.page-about .about-stat:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(26, 26, 26, 0.28);
}
.page-about .about-stat strong {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 900;
}
.page-about .about-stat span {
  display: block;
  font-size: 0.85rem;
  opacity: 0.75;
}
.page-about .about-stat__detail {
  margin: 6px 0 0;
  font-size: 0.75rem;
  opacity: 0.68;
}
.page-about .about-updates__timeline h3 {
  font-size: 1.25rem;
  font-weight: 900;
  margin-bottom: 16px;
}
.page-about .about-timeline {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}
.page-about .about-timeline__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(26, 26, 26, 0.3);
  position: relative;
}
.page-about .about-timeline__item::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--about-orange);
  border: 2px solid var(--about-ink);
  flex: 0 0 10px;
  align-self: center;
}
.page-about .about-timeline__batch {
  font-family: var(--font-mono);
  font-weight: 900;
  background: var(--about-ink);
  color: var(--about-paper);
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 0.85rem;
}
.page-about .about-timeline__period {
  font-size: 0.82rem;
  background: var(--about-paper);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--about-ink);
}
.page-about .about-timeline__note {
  flex: 1 1 100%;
  font-size: 0.92rem;
  padding-left: 18px;
}
.page-about .about-updates__timeline .btn {
  margin-top: 4px;
}
.page-about .about-search {
  background: var(--about-bg);
  padding: 48px 0;
}
.page-about .about-steps {
  list-style: none;
  margin: 32px 0 36px;
  padding: 0;
  display: grid;
  gap: 20px;
}
.page-about .about-step {
  position: relative;
  background: var(--about-paper);
  border-top: 6px solid var(--about-teal);
  padding: 20px 16px 16px;
  box-shadow: 4px 4px 0 rgba(26, 26, 26, 0.12);
}
.page-about .about-step:nth-child(2) {
  border-top-color: var(--about-orange);
}
.page-about .about-step:nth-child(3) {
  border-top-color: var(--about-yellow);
}
.page-about .about-step:nth-child(4) {
  border-top-color: var(--about-accent);
}
.page-about .about-step__index {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 900;
  color: var(--about-accent);
  letter-spacing: 0.06em;
}
.page-about .about-step h3 {
  font-size: 1.15rem;
  font-weight: 900;
  margin: 6px 0 8px;
}
.page-about .about-step p {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: rgba(26, 26, 26, 0.75);
}
.page-about .about-step a {
  color: var(--about-accent);
  font-weight: 900;
  font-size: 0.9rem;
  text-decoration: underline;
}
.page-about .about-search__figure {
  background: var(--about-paper);
  border: 3px solid var(--about-ink);
  box-shadow: 6px 6px 0 rgba(26, 26, 26, 0.15);
}
.page-about .figure-frame img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}
@media (min-width: 768px) {
  .page-about .about-scope__grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .page-about .about-taxonomy__layout {
    grid-template-columns: 1.3fr 0.9fr;
    align-items: start;
    gap: 48px;
  }
  .page-about .about-tags__layout {
    grid-template-columns: 1fr 0.9fr;
    gap: 48px;
  }
  .page-about .about-updates__stats {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-steps {
    grid-template-columns: repeat(4, 1fr);
  }
}
@media (min-width: 1200px) {
  .page-about .about-taxonomy__layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
  }
  .page-about .about-updates__stats {
    gap: 24px;
  }
  .page-about .about-intro__desc {
    font-size: 1.05rem;
  }
}