.page-about {
  background: var(--c-paper);
  color: var(--c-ink);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
}

/* ========== Hero ========== */
.page-about__hero {
  background: linear-gradient(150deg, var(--c-dark) 0%, var(--c-deep) 78%, var(--c-deep) 100%);
  color: #fff;
  padding: 2.5rem 0 4rem;
  position: relative;
  overflow: hidden;
}
.page-about__hero::before {
  content: "";
  position: absolute;
  right: -8%;
  top: -15%;
  width: 340px;
  height: 340px;
  background: var(--c-orange);
  opacity: 0.22;
  transform: rotate(24deg);
  clip-path: polygon(0 0, 100% 0, 78% 100%, 0 100%);
}
.page-about__hero::after {
  content: "";
  position: absolute;
  right: 14%;
  bottom: -90px;
  width: 220px;
  height: 220px;
  border: 2px solid rgba(57, 255, 20, 0.35);
  border-radius: 50%;
  opacity: 0.5;
  pointer-events: none;
}
.page-about__hero-inner {
  position: relative;
  z-index: 1;
}
.page-about__hero .breadcrumb {
  margin-bottom: 1.75rem;
  font-size: 0.85rem;
}
.page-about__hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about__hero .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: rgba(255, 255, 255, 0.4);
}
.page-about__hero .breadcrumb__list a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.2s;
}
.page-about__hero .breadcrumb__list a:hover {
  color: var(--c-orange);
}
.page-about__hero-code {
  display: inline-block;
  margin-bottom: 1rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--c-neon);
  background: rgba(57, 255, 20, 0.08);
  padding: 0.25rem 0.6rem;
}
.page-about__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 6vw, 4rem);
  line-height: 1.12;
  letter-spacing: 0.01em;
  margin: 0 0 1.2rem;
  max-width: 16em;
}
.page-about__title-sub {
  color: var(--c-orange);
  margin: 0 0.25em;
}
.page-about__lead {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.78);
  max-width: 38em;
  margin-bottom: 2rem;
}
.page-about__hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.5rem;
}
.page-about__hero-stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-orange);
  line-height: 1.2;
}
.page-about__hero-stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.62);
}

/* ========== Section base ========== */
.page-about__story,
.page-about__capability,
.page-about__continue {
  background: var(--c-paper);
  padding-block: 4rem;
}
.page-about__milestones,
.page-about__team {
  background: var(--c-dark);
  color: #fff;
  padding-block: 4rem;
}
.page-about__section-head {
  margin-bottom: 2.5rem;
}
.page-about__section-desc {
  color: var(--c-muted);
  max-width: 34em;
  margin-top: 0.75rem;
}
.page-about__section-desc--light {
  color: rgba(255, 255, 255, 0.6);
}

/* ========== Story ========== */
.page-about__story-grid {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}
.page-about__story-text p {
  margin-bottom: 1rem;
  max-width: 38em;
}
.page-about__para-lead {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--c-deep);
}
.page-about__story-visual {
  overflow: hidden;
}
.page-about__story-visual img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.page-about__story-visual:hover img {
  transform: scale(1.02);
}
.page-about__story-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* ========== Timeline ========== */
.page-about__timeline {
  position: relative;
  margin-top: 3rem;
  padding-left: 2.5rem;
}
.page-about__timeline::before {
  content: "";
  position: absolute;
  left: 0.75rem;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 2px;
  background: linear-gradient(180deg, var(--c-orange), rgba(57, 255, 20, 0.3));
}
.page-about__timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
}
.page-about__timeline-item:last-child {
  margin-bottom: 0;
}
.page-about__timeline-marker {
  position: absolute;
  left: -2.5rem;
  top: 0.65rem;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--c-dark);
  border: 3px solid var(--c-orange);
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-about__timeline-marker span {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background: var(--c-neon);
}
.page-about__timeline-period {
  color: var(--c-neon);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}
.page-about__timeline-card {
  background: rgba(255, 255, 255, 0.05);
  border-left: 3px solid var(--c-orange);
  padding: 1.25rem 1.5rem;
  margin-top: 0.75rem;
}
.page-about__timeline-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}
.page-about__timeline-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ========== Stats ========== */
.page-about__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 2.5rem 0 3rem;
}
.page-about__stats .data-card {
  text-align: center;
  padding: 1.5rem 1rem;
}
.page-about__stats .data-card__value {
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--c-deep);
}
.page-about__stats .data-card__label {
  font-size: 0.85rem;
}

/* ========== Capability tabs ========== */
.page-about__capability-tabs {
  background: #fff;
  border: 1px solid var(--c-divider);
  box-shadow: var(--shadow-card);
}
.page-about__capability-tablist {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--c-divider);
}
.page-about__tab-button {
  flex: 1 1 auto;
  min-width: 120px;
  padding: 0.9rem 1rem;
  background: transparent;
  border: 0;
  border-right: 1px solid var(--c-divider);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--c-muted);
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
}
.page-about__tab-button:last-child {
  border-right: 0;
}
.page-about__tab-button.is-active {
  background: var(--c-deep);
  color: #fff;
}
.page-about__capability-panel {
  display: grid;
  gap: 1.5rem;
  padding: 2rem 1.5rem;
}
.page-about__capability-text h3 {
  font-size: 1.2rem;
  margin: 0 0 0.75rem;
}
.page-about__capability-text p {
  margin: 0 0 0.75rem;
  max-width: 42em;
}
.page-about__capability-panel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-content: flex-start;
}
.page-about__tag {
  display: inline-block;
  font-size: 0.78rem;
  padding: 0.3rem 0.6rem;
  background: rgba(11, 31, 59, 0.06);
  color: var(--c-deep);
  border-left: 2px solid var(--c-orange);
}
.page-about__capability-visual {
  margin-top: 2.5rem;
}
.page-about__capability-visual img {
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about__capability-visual-caption {
  text-align: center;
  font-size: 0.8rem;
  margin-top: 0.5rem;
  color: var(--c-muted);
}

/* ========== Team ========== */
.page-about__team-roles {
  display: grid;
  gap: 1rem;
  margin-top: 2.5rem;
}
.page-about__role-card {
  background: rgba(255, 255, 255, 0.05);
  border-left: 3px solid var(--c-neon);
  padding: 1.5rem;
  transition: transform 0.2s ease, background-color 0.2s ease;
}
.page-about__role-card:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.08);
}
.page-about__role-code {
  display: block;
  font-size: 0.75rem;
  color: var(--c-neon);
  margin-bottom: 0.5rem;
  letter-spacing: 0.04em;
}
.page-about__role-card h3 {
  font-size: 1.05rem;
  margin: 0 0 0.5rem;
}
.page-about__role-card p {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.68);
}
.page-about__team-visual {
  margin-top: 2.5rem;
}
.page-about__team-visual img {
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85);
}
.page-about__culture {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}
.page-about__culture-item {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 1.25rem;
}
.page-about__culture-index {
  font-size: 0.8rem;
  color: var(--c-orange);
  letter-spacing: 0.05em;
}
.page-about__culture-item h3 {
  font-size: 1rem;
  margin: 0.5rem 0;
}
.page-about__culture-item p {
  margin: 0;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
}
.page-about__team-award {
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  background: rgba(255, 107, 53, 0.08);
  border: 1px dashed rgba(255, 107, 53, 0.5);
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}
.page-about__team-award p:first-child {
  color: var(--c-orange);
  font-size: 0.8rem;
  margin-bottom: 0.4rem;
}
.page-about__team-award p:last-child {
  margin: 0;
}

/* ========== Continue links ========== */
.page-about__continue {
  background: #fff;
}
.page-about__link-grid {
  margin-top: 2rem;
}
.page-about__link-card {
  display: block;
  padding: 1.5rem 1.25rem;
  background: var(--c-paper);
  border-left: 3px solid var(--c-deep);
  text-decoration: none;
  color: var(--c-ink);
  transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s;
}
.page-about__link-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  background: #fff;
}
.page-about__link-code {
  display: block;
  font-size: 0.75rem;
  color: var(--c-orange);
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}
.page-about__link-title {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}
.page-about__link-desc {
  font-size: 0.85rem;
  color: var(--c-muted);
}

/* ========== Responsive ========== */
@media (min-width: 640px) {
  .page-about__team-roles {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
  .page-about__stats {
    gap: 1rem;
  }
}

@media (min-width: 768px) {
  .page-about__stats {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about__capability-panel {
    grid-template-columns: 2fr 1fr;
    align-items: start;
    padding: 2.25rem 2rem;
  }
  .page-about__culture {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 992px) {
  .page-about__hero {
    padding: 4.5rem 0 6rem;
  }
  .page-about__hero::before {
    width: 420px;
    height: 420px;
  }
  .page-about__story,
  .page-about__milestones,
  .page-about__capability,
  .page-about__team,
  .page-about__continue {
    padding-block: 5.5rem;
  }
  .page-about__story-grid {
    grid-template-columns: 5fr 7fr;
    gap: 4rem;
    align-items: center;
  }
  .page-about__story-visual img {
    aspect-ratio: 4 / 3;
  }
  .page-about__timeline-item {
    display: grid;
    grid-template-columns: 180px 1fr;
    column-gap: 2rem;
    align-items: start;
    padding-left: 2.5rem;
  }
  .page-about__timeline-period {
    text-align: right;
    margin: 0.5rem 0 0;
  }
  .page-about__timeline-card {
    margin-top: 0;
  }
  .page-about__team-grid {
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
    align-items: center;
    margin-top: 1rem;
  }
  .page-about__team-roles {
    margin-top: 0;
  }
  .page-about__team-visual {
    margin-top: 0;
  }
  .page-about__capability-visual img {
    max-height: 360px;
    object-fit: cover;
    object-position: center;
  }
  .page-about__link-grid {
    gap: 1.5rem;
  }
}