.page-about {
  --about-spine: clamp(48px, 8vw, 88px);
  --about-rule-terra: 3px solid var(--terra);
  --about-rule-moss: 3px solid var(--moss);
  background:
    radial-gradient(ellipse 60% 40% at 85% 8%, rgba(57, 255, 136, 0.05), transparent 60%),
    linear-gradient(180deg, var(--space-blue-deep) 0%, var(--space-blue) 40%, var(--space-blue) 100%);
  color: var(--rice);
  overflow-x: hidden;
}

.page-about .breadcrumb {
  padding: 1.25rem 0 0;
}

.page-about .breadcrumb .container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-about .crumb-link {
  color: var(--signal);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.page-about .crumb-link:hover {
  color: var(--rice);
}

.page-about .crumb-sep {
  color: rgba(244, 240, 232, 0.35);
}

.page-about .crumb-current {
  color: rgba(244, 240, 232, 0.78);
}

.page-about .about-hero {
  padding: 2.5rem 0 3rem;
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero-grid {
  display: grid;
  gap: 1.75rem;
}

.page-about .about-hero-title {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(44px, 13vw, 72px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 0.01em;
  color: var(--rice);
}

.page-about .about-hero-kicker {
  margin: 0 0 0.75rem;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-about .about-hero-desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 240, 232, 0.84);
  max-width: 36em;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-about .about-hero-actions .btn-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.page-about .about-hero-actions .btn-arrow-icon {
  display: inline-block;
  transition: transform var(--t-fast) var(--ease);
}

.page-about .about-hero-actions .btn:hover .btn-arrow-icon {
  transform: translateX(4px);
}

.page-about .about-hero-figure {
  margin: 0;
  position: relative;
}

.page-about .about-hero-figure::after {
  content: "EST. 2016";
  position: absolute;
  right: 0.75rem;
  bottom: 0.75rem;
  padding: 0.3rem 0.6rem;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--space-blue);
  background: var(--signal);
  border-radius: 2px;
  font-weight: 700;
}

.page-about .about-hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--border-w) solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
}

.page-about .about-section-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.page-about .about-section-label .section-no {
  font-family: var(--font-data);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--terra);
  border-bottom: var(--about-rule-terra);
  padding-bottom: 0.15rem;
}

.page-about .about-section-label .section-src {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--moss);
  border: 1px solid rgba(94, 122, 94, 0.5);
  padding: 0.28rem 0.6rem;
  border-radius: 2px;
  background: rgba(94, 122, 94, 0.08);
}

.page-about .about-mission {
  display: grid;
  gap: 1.5rem;
}

.page-about .about-mission-content {
  position: relative;
}

.page-about .about-mission-title,
.page-about .about-calendar-title,
.page-about .about-milestones-title,
.page-about .about-update-title,
.page-about .about-next-title {
  margin: 0 0 1rem;
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-about .about-mission-lead {
  margin: 0 0 1.5rem;
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 600;
  line-height: 1.6;
  border-left: var(--about-rule-terra);
  padding-left: 1.25rem;
  color: var(--rice);
  max-width: 42em;
}

.page-about .about-mission-grid {
  display: grid;
  gap: 1rem;
}

.page-about .about-mission-card {
  background: var(--rock);
  border: var(--border-w) solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  padding: 1.4rem;
  border-top: 4px solid var(--signal);
  transition: transform var(--t-med) var(--ease), box-shadow var(--t-med) var(--ease);
}

.page-about .about-mission-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.4);
}

.page-about .about-mission-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--rice);
}

.page-about .about-mission-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(244, 240, 232, 0.78);
}

.page-about .about-mission-footnote {
  margin: 1.25rem 0 0;
  font-family: var(--font-data);
  font-size: 13px;
  color: rgba(244, 240, 232, 0.55);
  padding-left: 0.75rem;
  border-left: var(--about-rule-moss);
}

.page-about .about-calendar-head {
  margin-bottom: 1.5rem;
}

.page-about .about-calendar-desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 240, 232, 0.78);
  max-width: 38em;
}

.page-about .about-calendar-figure {
  margin: 0 0 2rem;
}

.page-about .about-calendar-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--border-w) solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  background: var(--space-blue-2);
}

.page-about .about-timeline-wrap {
  position: relative;
}

.page-about .about-timeline-hint {
  margin: 0 0 0.6rem;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(244, 240, 232, 0.45);
}

.page-about .about-timeline-scroll {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  cursor: grab;
  padding-bottom: 0.75rem;
  scrollbar-width: thin;
  scrollbar-color: var(--signal) rgba(244, 240, 232, 0.08);
}

.page-about .about-timeline-scroll::-webkit-scrollbar {
  height: 6px;
}

.page-about .about-timeline-scroll::-webkit-scrollbar-track {
  background: rgba(244, 240, 232, 0.08);
  border-radius: 3px;
}

.page-about .about-timeline-scroll::-webkit-scrollbar-thumb {
  background: var(--signal);
  border-radius: 3px;
}

.page-about .about-timeline-track {
  display: flex;
  gap: 1.25rem;
  min-width: max-content;
  padding: 0.5rem 0.25rem 1rem;
  position: relative;
}

.page-about .about-tl-node {
  position: relative;
  width: 270px;
  flex-shrink: 0;
  scroll-snap-align: start;
  background: var(--rock);
  border: var(--border-w) solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  padding: 1.6rem 1.3rem 1.3rem 3.4rem;
}

.page-about .about-tl-node::before {
  content: "";
  position: absolute;
  left: -1.35rem;
  top: 2rem;
  width: 1.35rem;
  height: 2px;
  background: var(--terra);
}

.page-about .about-tl-node:first-child::before {
  display: none;
}

.page-about .about-tl-year {
  display: block;
  font-family: var(--font-data);
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--terra);
}

.page-about .about-tl-dot {
  position: absolute;
  left: 1.15rem;
  top: 1.9rem;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 10px rgba(57, 255, 136, 0.55);
  border: 3px solid var(--space-blue);
}

.page-about .about-tl-title {
  margin: 0.6rem 0 0.4rem;
  font-size: 1rem;
  font-weight: 800;
  color: var(--rice);
}

.page-about .about-tl-detail {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.65;
  color: rgba(244, 240, 232, 0.7);
}

.page-about .about-milestones {
  display: grid;
  gap: 2.5rem;
}

.page-about .about-milestones-copy {
  position: relative;
}

.page-about .about-milestones-desc {
  margin: 0 0 1.5rem;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 240, 232, 0.8);
  max-width: 36em;
}

.page-about .about-milestone-figure {
  margin: 0;
}

.page-about .about-milestone-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--border-w) solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  background: var(--space-blue-2);
}

.page-about .about-milestones-stats {
  display: grid;
  gap: 1rem;
}

.page-about .about-stat-card {
  position: relative;
  background: var(--rock);
  border: var(--border-w) solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  padding: 1.5rem 1.5rem 1.4rem;
  overflow: hidden;
  transition: transform var(--t-med) var(--ease), box-shadow var(--t-med) var(--ease);
}

.page-about .about-stat-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--signal), var(--moss));
}

.page-about .about-stat-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.38);
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1;
  color: var(--signal);
  letter-spacing: -0.02em;
}

.page-about .about-stat-cat {
  display: block;
  margin-top: 0.65rem;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--rice);
}

.page-about .about-stat-detail {
  margin: 0.5rem 0 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: rgba(244, 240, 232, 0.62);
}

.page-about .about-update {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-update-layout {
  display: grid;
  gap: 2.25rem;
}

.page-about .about-update-lead {
  position: relative;
  border-left: var(--about-rule-moss);
  padding-left: 1.25rem;
}

.page-about .about-update-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 240, 232, 0.78);
  max-width: 34em;
}

.page-about .about-update-grid {
  display: grid;
  gap: 1rem;
}

.page-about .about-update-card {
  background: transparent;
  border: var(--border-w) solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
  position: relative;
  transition: border-color var(--t-fast) var(--ease), transform var(--t-med) var(--ease);
}

.page-about .about-update-card:hover {
  border-color: rgba(57, 255, 136, 0.4);
  transform: translateY(-2px);
}

.page-about .about-update-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  margin-bottom: 0.8rem;
  font-family: var(--font-data);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--space-blue);
  background: var(--orange);
  border-radius: 50%;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.32);
}

.page-about .about-update-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 800;
}

.page-about .about-update-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(244, 240, 232, 0.75);
}

.page-about .about-next {
  background: rgba(7, 21, 39, 0.55);
}

.page-about .about-next-grid {
  display: grid;
  gap: 1rem;
}

.page-about .about-next-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: var(--rock);
  border: var(--border-w) solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  padding: 1.5rem;
  text-decoration: none;
  color: var(--rice);
  transition: transform var(--t-med) var(--ease), box-shadow var(--t-med) var(--ease), border-color var(--t-med) var(--ease);
}

.page-about .about-next-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 11px 11px 0 rgba(0, 0, 0, 0.4);
  border-color: rgba(57, 255, 136, 0.45);
}

.page-about .about-next-card h3 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
}

.page-about .about-next-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(244, 240, 232, 0.72);
}

.page-about .about-next-arrow {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--signal);
}

@media (min-width: 720px) {
  .page-about .about-mission-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

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

@media (min-width: 960px) {
  .page-about .about-hero {
    padding: 3rem 0 4.5rem;
  }

  .page-about .about-hero-grid {
    grid-template-columns: var(--about-spine) minmax(0, 5fr) minmax(0, 4fr);
    grid-template-areas: "spine main figure";
    gap: 2.5rem;
    align-items: center;
  }

  .page-about .about-hero-title {
    grid-area: spine;
    writing-mode: vertical-rl;
    font-size: clamp(64px, 6.5vw, 102px);
    letter-spacing: 0.2em;
    line-height: 1;
    white-space: nowrap;
    justify-self: center;
    color: var(--rice);
    text-shadow: 0 0 24px rgba(57, 255, 136, 0.12);
  }

  .page-about .about-hero-main {
    grid-area: main;
    padding-right: 1.5rem;
  }

  .page-about .about-hero-desc {
    font-size: 17px;
  }

  .page-about .about-hero-figure {
    grid-area: figure;
  }

  .page-about .about-mission {
    grid-template-columns: 10rem minmax(0, 1fr);
    gap: 2.5rem;
  }

  .page-about .about-mission-title {
    margin-top: 0;
  }

  .page-about .about-mission-content {
    padding-left: 1rem;
  }

  .page-about .about-mission-content::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg, var(--terra), var(--moss), transparent 85%);
    opacity: 0.55;
  }

  .page-about .about-calendar-head {
    display: grid;
    grid-template-columns: 10rem minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
    position: relative;
  }

  .page-about .about-calendar-head::after {
    content: "";
    position: absolute;
    left: 10rem;
    top: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg, var(--moss), var(--terra), transparent 85%);
    opacity: 0.55;
  }

  .page-about .about-calendar-title {
    margin-top: 0;
  }

  .page-about .about-calendar-desc {
    font-size: 17px;
  }

  .page-about .about-calendar-figure {
    margin-left: 12.5rem;
  }

  .page-about .about-calendar-figure img {
    max-height: 480px;
    object-fit: cover;
    object-position: center;
  }

  .page-about .about-timeline-hint {
    display: none;
  }

  .page-about .about-milestones {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 3rem;
    align-items: start;
  }

  .page-about .about-milestones-copy {
    position: sticky;
    top: calc(var(--header-h-scrolled) + 1.5rem);
  }

  .page-about .about-milestones-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.1rem;
  }

  .page-about .about-update-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 3rem;
    align-items: start;
  }

  .page-about .about-update-lead {
    position: sticky;
    top: calc(var(--header-h-scrolled) + 1.5rem);
  }

  .page-about .about-update-desc {
    font-size: 16px;
  }
}