.page-about {
  --about-deep-2: #232333;
  --about-soft: #efeae0;
  --about-line: rgba(42, 42, 58, 0.14);
  background: var(--bg-warm);
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about .breadcrumbs {
  margin-top: 1rem;
}

.page-about .about-hero {
  background: var(--bg-deep);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.25rem 1.4rem;
  margin: 1rem 0 0;
}

.page-about .about-hero h1 {
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  font-family: var(--font-display);
  line-height: 1.28;
  margin: 0 0 0.55rem;
  color: var(--text-on-deep);
  letter-spacing: 0.01em;
}

.page-about .about-hero__lead {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-about .about-hero__lead strong {
  color: var(--card-lemon);
  font-weight: 700;
}

.page-about .overview-sec,
.page-about .schedule-sec,
.page-about .search-sec {
  background: var(--bg-deep);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.15rem 2rem;
  margin: 1rem 0 0;
  color: var(--text-on-deep);
}

.page-about .section-head {
  margin-bottom: 1rem;
}

.page-about .section-head--light .section-head__title {
  color: var(--text-on-deep);
}

.page-about .section-head--light .section-head__more {
  color: var(--card-lemon);
}

.page-about .sticker {
  font-family: var(--font-hand);
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.4;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
  display: inline-block;
  white-space: nowrap;
}

.page-about .sticker--lemon {
  background: var(--card-lemon);
  color: var(--text-primary);
}

.page-about .sticker--accent {
  background: var(--accent);
  color: var(--text-on-deep);
}

.page-about .section-head__more.sticker {
  text-decoration: none;
}

.page-about .overview-board {
  position: relative;
  border: 2px dashed rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  padding: 0.8rem;
  overflow: hidden;
}

.page-about .overview-board__img {
  width: 100%;
  min-height: 84px;
  object-fit: cover;
  border-radius: 12px;
  display: block;
}

.page-about .stat-bubbles {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin: 1.2rem 0 0.6rem;
}

.page-about .stat-bubble {
  width: 132px;
  height: 132px;
  border-radius: 50%;
  border: 4px solid var(--text-on-deep);
  box-shadow: var(--shadow-pop);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.page-about .stat-bubble:hover {
  transform: translateY(-5px) rotate(-2deg);
  box-shadow: 8px 8px 0 rgba(255, 255, 255, 0.22);
}

.page-about .stat-bubble--coral {
  background: var(--card-coral);
}

.page-about .stat-bubble--lemon {
  background: var(--card-lemon);
}

.page-about .stat-bubble--mint {
  background: var(--card-mint);
}

.page-about .stat-bubble__num {
  font-size: 1.75rem;
  font-weight: 900;
  font-family: var(--font-display);
  line-height: 1;
}

.page-about .stat-bubble__label {
  font-size: 0.75rem;
  font-weight: 700;
  margin-top: 4px;
}

.page-about .overview-board__meta {
  text-align: center;
  margin: 0.2rem 0 0;
  color: var(--text-soft);
  font-size: 0.83rem;
}

.page-about .genres-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1.2rem;
}

.page-about .genre-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem 0.45rem 1rem;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 0.85rem;
  line-height: 1.2;
  color: var(--text-primary);
  border: 2px solid var(--bg-deep);
  box-shadow: 3px 3px 0 rgba(255, 255, 255, 0.22);
  text-decoration: none;
  transition: transform 0.15s ease;
}

.page-about .genre-chip:hover {
  transform: translateY(-2px);
}

.page-about .genre-chip__count {
  background: rgba(31, 31, 46, 0.14);
  border-radius: var(--radius-pill);
  padding: 0.14rem 0.45rem;
  font-size: 0.72rem;
}

.page-about .genre-chip--coral {
  background: var(--card-coral);
}

.page-about .genre-chip--rose {
  background: var(--tag-5);
}

.page-about .genre-chip--lemon {
  background: var(--card-lemon);
}

.page-about .genre-chip--mint {
  background: var(--card-mint);
}

.page-about .genre-chip--lavender {
  background: var(--card-lavender);
}

.page-about .taxonomy-sec,
.page-about .version-sec {
  background: var(--bg-warm);
  border-radius: var(--radius-lg);
  padding: 1.6rem 0 2rem;
  margin: 1rem 0 0;
}

.page-about .taxonomy-sec__lead {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
  margin: 0 0 1rem;
}

.page-about .taxonomy-board {
  background: var(--bg-panel);
  border: 2px solid var(--bg-deep);
  border-radius: var(--radius-md);
  box-shadow: 4px 4px 0 rgba(42, 42, 58, 0.1);
  padding: 0.8rem;
}

.page-about .taxonomy-board__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 1rem;
}

.page-about .tree-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
}

.page-about .tree-node {
  border: 2px solid var(--bg-deep);
  border-radius: var(--radius-md);
  background: var(--bg-warm);
  padding: 0.7rem 0.8rem;
  transition: box-shadow 0.18s ease, transform 0.18s ease;
}

.page-about .tree-node:hover {
  box-shadow: 4px 4px 0 var(--bg-deep);
  transform: translate(-1px, -1px);
}

.page-about .tree-node__name {
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.4;
  margin: 0 0 0.4rem;
  color: var(--text-primary);
}

.page-about .tree-node .tag-group {
  gap: 0.3rem;
}

.page-about .schedule-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-about .schedule-card {
  border-radius: var(--radius-md);
  padding: 1rem;
  border: 3px solid rgba(255, 255, 255, 0.9);
  box-shadow: 5px 5px 0 rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.page-about .schedule-card--new {
  background: var(--card-lemon);
}

.page-about .schedule-card--done {
  background: var(--card-mint);
}

.page-about .schedule-card__weekday {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  height: 58px;
  border-radius: 16px;
  background: var(--bg-deep);
  color: var(--text-on-deep);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  padding: 0 0.5rem;
  box-shadow: 2px 2px 0 rgba(31, 31, 46, 0.35);
}

.page-about .schedule-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.page-about .schedule-card__body strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.page-about .schedule-card__body > span {
  font-size: 0.82rem;
  color: rgba(31, 31, 46, 0.78);
}

.page-about .schedule-card__body .status-badge {
  align-self: flex-start;
  font-size: 0.75rem;
}

.page-about .schedule-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  margin-top: 1.1rem;
  color: var(--text-soft);
  font-size: 0.85rem;
  line-height: 1.6;
}

.page-about .version-line {
  display: flex;
  gap: 0.25rem;
  justify-content: space-between;
  border-bottom: 3px solid var(--bg-deep);
  padding-bottom: 0.55rem;
  margin-bottom: 1rem;
}

.page-about .version-node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  height: 40px;
  padding: 0 0.6rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--text-primary);
  background: var(--card-lavender);
  border: 2px solid var(--bg-deep);
  box-shadow: 2px 2px 0 var(--bg-deep);
  transition: background 0.18s ease, color 0.18s ease;
}

.page-about .version-node:hover {
  background: var(--accent);
  color: var(--text-on-deep);
}

.page-about .version-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
}

.page-about .version-card {
  background: var(--bg-panel);
  border: 2px solid var(--bg-deep);
  border-radius: var(--radius-md);
  padding: 0.9rem 1rem;
  scroll-margin-top: 24px;
  transition: box-shadow 0.18s ease;
}

.page-about .version-card:hover {
  box-shadow: 4px 4px 0 rgba(42, 42, 58, 0.14);
}

.page-about .version-card h3 {
  font-family: var(--font-display);
  font-size: 1.02rem;
  line-height: 1.4;
  margin: 0 0 0.3rem;
  color: var(--text-primary);
}

.page-about .version-card p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-muted);
}

.page-about .device-panel {
  margin-top: 1rem;
  border: 2px dashed var(--bg-deep);
  border-radius: var(--radius-md);
  background: var(--about-soft);
  padding: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.page-about .device-panel__img {
  width: 210px;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  border: 2px solid var(--bg-deep);
}

.page-about .device-panel p {
  flex: 1;
  min-width: 190px;
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--text-primary);
}

.page-about .device-panel p strong {
  color: var(--accent);
}

.page-about .access-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
}

.page-about .access-card {
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 3px solid var(--bg-deep);
  box-shadow: 3px 3px 0 rgba(255, 255, 255, 0.2);
  text-decoration: none;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-align: left;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.page-about .access-card:hover {
  transform: translateY(-3px) rotate(-1deg);
  box-shadow: 7px 7px 0 rgba(255, 255, 255, 0.28);
}

.page-about .access-card--coral {
  background: var(--card-coral);
}

.page-about .access-card--lemon {
  background: var(--card-lemon);
}

.page-about .access-card--mint {
  background: var(--card-mint);
}

.page-about .access-card--lavender {
  background: var(--card-lavender);
}

.page-about .access-card--rose {
  background: var(--tag-5);
}

.page-about .access-card__icon {
  flex: 0 0 auto;
  color: var(--text-primary);
}

.page-about .access-card strong {
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.3;
  display: block;
}

.page-about .access-card span:last-child {
  font-size: 0.76rem;
  line-height: 1.4;
  color: rgba(31, 31, 46, 0.72);
  display: block;
}

.page-about .quick-links {
  background: var(--bg-warm);
  border: 2px solid var(--bg-deep);
  border-radius: var(--radius-md);
  margin-top: 1.5rem;
  padding: 1rem;
}

.page-about .quick-links h2 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  margin: 0 0 0.6rem;
  color: var(--text-primary);
}

.page-about .quick-links__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-about .quick-links__grid a {
  display: inline-block;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--bg-panel);
  border: 2px solid var(--bg-deep);
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: background 0.16s ease, color 0.16s ease;
}

.page-about .quick-links__grid a:hover {
  background: var(--accent);
  color: var(--text-on-deep);
}

@media (min-width: 520px) {
  .page-about .schedule-board {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .tree-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .access-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .version-line {
    justify-content: flex-start;
    gap: 0.8rem;
  }

  .page-about .version-node {
    min-width: 84px;
  }
}

@media (min-width: 768px) {
  .page-about .stat-bubble {
    width: 160px;
    height: 160px;
  }

  .page-about .stat-bubble__num {
    font-size: 2.15rem;
  }

  .page-about .genres-strip {
    justify-content: flex-start;
    gap: 0.65rem;
  }

  .page-about .overview-sec,
  .page-about .schedule-sec,
  .page-about .search-sec {
    padding: 1.8rem 1.6rem 2.2rem;
  }

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

  .page-about .version-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .device-panel__img {
    width: 260px;
  }

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

  .page-about .access-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.2rem 0.8rem;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 2rem;
    padding: 1.6rem 2rem;
  }

  .page-about .about-hero h1 {
    max-width: 620px;
    margin: 0;
  }

  .page-about .about-hero__lead {
    max-width: 430px;
  }

  .page-about .overview-board {
    display: grid;
    grid-template-columns: 1fr 170px;
    gap: 1.2rem;
    align-items: center;
  }

  .page-about .overview-board__img {
    height: 100%;
    max-height: 180px;
    min-height: 140px;
  }

  .page-about .stat-bubbles {
    margin: 0;
    flex-direction: column;
    gap: 0.75rem;
  }

  .page-about .stat-bubble {
    width: 150px;
    height: 150px;
  }

  .page-about .overview-board__meta {
    grid-column: 1 / -1;
  }

  .page-about .taxonomy-board {
    padding: 1.1rem;
  }

  .page-about .schedule-foot {
    justify-content: flex-end;
  }

  .page-about .version-line {
    justify-content: space-between;
    gap: 1rem;
  }

  .page-about .version-node {
    min-width: 110px;
    height: 48px;
    font-size: 1rem;
  }

  .page-about .device-panel {
    padding: 1.2rem 1.4rem;
  }
}