.page-about {
  position: relative;
  padding-bottom: 4rem;
  background:
    radial-gradient(110% 55% at 6% -4%, rgba(57, 255, 196, 0.09), transparent 58%),
    radial-gradient(90% 46% at 104% 6%, rgba(255, 122, 24, 0.1), transparent 60%),
    var(--ink);
  color: var(--fog);
  font-family: var(--font-body);
}

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

.page-about .about-hero {
  position: relative;
  padding: 1.7rem 0 2.3rem;
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: -20% -8% auto auto;
  width: 60%;
  height: 150%;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 42%, rgba(57, 255, 196, 0.08) 50%, transparent 62%);
  transform: skewX(-12deg);
}

.page-about .about-hero__title {
  position: relative;
  margin: 0.65rem 0 0;
  max-width: 20ch;
  font-family: var(--font-head);
  font-size: clamp(2.05rem, 8vw, 4rem);
  font-weight: 800;
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-about .about-hero__lead {
  position: relative;
  margin: 1.05rem 0 0;
  max-width: 60ch;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--haze);
}

.page-about .about-hero__stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__stat {
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--glass);
  backdrop-filter: blur(6px);
}

.page-about .about-hero__stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-about .about-hero__stat:nth-child(2) .about-hero__stat-num {
  color: var(--orange);
}

.page-about .about-hero__stat-label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.76rem;
  line-height: 1.45;
  color: var(--haze);
}

.page-about .about-body {
  display: block;
  padding-top: 1.2rem;
}

.page-about .about-index {
  position: sticky;
  top: var(--head-h);
  z-index: 3;
  margin: 0 -0.8rem 0.9rem;
  padding: 0.55rem 0.8rem;
  background: var(--glass-deep);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.page-about .about-index__head {
  margin: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--haze);
}

.page-about .about-index__list {
  display: flex;
  gap: 0.4rem;
  margin: 0;
  padding: 0 0 0.15rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-index__list::-webkit-scrollbar {
  display: none;
}

.page-about .about-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  padding: 0.34rem 0.62rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
  text-decoration: none;
  color: var(--haze);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-index__link:hover {
  color: var(--fog);
  border-color: var(--line-strong);
}

.page-about .about-index__link[aria-current="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .about-index__num {
  font-size: 0.66rem;
  opacity: 0.75;
}

.page-about .about-flow-wrap {
  min-width: 0;
}

.page-about .about-section {
  margin-bottom: 1rem;
  padding: 1.4rem 1.1rem;
  border-radius: var(--radius-lg);
  scroll-margin-top: calc(var(--head-h) + 4.2rem);
}

.page-about .about-sheet {
  background: var(--paper);
  color: var(--paper-ink);
}

.page-about .about-wall {
  background: var(--night);
  border: 1px solid var(--line);
  color: var(--fog);
}

.page-about .about-section__eyebrow {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-section__eyebrow::before {
  content: "";
  width: 1.3rem;
  height: 2px;
  flex: none;
  background: var(--orange);
}

.page-about .about-sheet .about-section__eyebrow {
  color: #9a6a2e;
}

.page-about .about-section__title {
  margin: 0.55rem 0 0;
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 5vw, 2.05rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
}

.page-about .about-text {
  max-width: 62ch;
}

.page-about .about-text p {
  margin: 0.85rem 0 0;
  font-size: 0.94rem;
  line-height: 1.85;
}

.page-about .about-sheet .about-text {
  color: rgba(11, 22, 40, 0.82);
}

.page-about .about-wall .about-text {
  color: #c3d2e0;
}

.page-about .about-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 196, 0.45);
}

.page-about .about-sheet .about-link {
  color: #0d6b59;
  border-bottom-color: rgba(13, 107, 89, 0.4);
}

.page-about .about-points {
  display: grid;
  gap: 0.7rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-points__item {
  padding: 0.15rem 0 0.15rem 0.75rem;
  border-left: 2px solid rgba(255, 122, 24, 0.55);
}

.page-about .about-points__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: #b4570a;
}

.page-about .about-points__desc {
  margin: 0.3rem 0 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(11, 22, 40, 0.78);
}

.page-about .about-flow {
  display: grid;
  gap: 1rem;
  margin-top: 1.1rem;
}

.page-about .about-flow__media {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--slate);
}

.page-about .about-flow__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-about .about-flow__steps {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
  align-content: start;
}

.page-about .about-flow__step {
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--glass);
}

.page-about .about-flow__step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .about-flow__step-title {
  margin: 0.3rem 0 0;
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--fog);
}

.page-about .about-flow__step-desc {
  margin: 0.25rem 0 0;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--haze);
}

.page-about .about-timeline {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(14.5rem, 78%);
  gap: 0.7rem;
  margin: 1.2rem 0 0;
  padding: 0 0 0.8rem;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}

.page-about .about-timeline__item {
  position: relative;
  padding-top: 1.1rem;
  scroll-snap-align: start;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line-strong);
}

.page-about .about-timeline__item::after {
  content: "";
  position: absolute;
  top: -0.24rem;
  left: 0;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(57, 255, 196, 0.16);
}

.page-about .about-node__trigger {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 0.55rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--glass);
  color: var(--fog);
  font-family: var(--font-body);
  font-size: 0.9rem;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-node__trigger:hover {
  border-color: var(--line-strong);
  background: rgba(20, 40, 66, 0.75);
}

.page-about .about-node__ver {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-about .about-node__title {
  flex: 1 1 auto;
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--fog);
}

.page-about .about-node__panel {
  margin-top: 0.5rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--slate);
}

.page-about .about-node__panel p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: #c3d2e0;
}

.page-about .disclosure__icon {
  position: relative;
  flex: none;
  width: 0.8rem;
  height: 0.8rem;
  margin-left: auto;
}

.page-about .disclosure__icon::before,
.page-about .disclosure__icon::after {
  content: "";
  position: absolute;
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

.page-about .about-node .disclosure__icon::before,
.page-about .about-node .disclosure__icon::after {
  background: var(--cyan);
}

.page-about .about-node .disclosure__icon::before {
  top: 50%;
  left: 0;
  right: 0;
  height: 1.5px;
  transform: translateY(-50%);
}

.page-about .about-node .disclosure__icon::after {
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1.5px;
  transform: translateX(-50%);
}

.page-about .about-node[data-open="true"] .disclosure__icon::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-about .about-media {
  margin-top: 1.2rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--slate);
}

.page-about .about-media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-media--wide img {
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-team__media {
  margin-top: 1.05rem;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--slate);
}

.page-about .about-team__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-about .about-team-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 1.15rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-team-grid__item {
  padding: 0.8rem;
  border: 1px solid rgba(11, 22, 40, 0.14);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.52);
}

.page-about .about-team-grid__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.85rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper-ink);
}

.page-about .about-team-grid__unit {
  margin-left: 0.12rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: #8a6a3c;
}

.page-about .about-team-grid__label {
  display: block;
  margin-top: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: #b4570a;
}

.page-about .about-team-grid__desc {
  margin: 0.4rem 0 0;
  font-size: 0.83rem;
  line-height: 1.7;
  color: rgba(11, 22, 40, 0.75);
}

.page-about .about-wall-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 1.15rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-wall-grid__item {
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(155deg, rgba(20, 34, 56, 0.92), rgba(11, 22, 40, 0.7));
}

.page-about .about-wall-grid__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-about .about-wall-grid__item:nth-child(2n) .about-wall-grid__num {
  color: var(--orange);
}

.page-about .about-wall-grid__item:nth-child(5) .about-wall-grid__num {
  color: var(--magenta);
}

.page-about .about-wall-grid__label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--haze);
}

.page-about .about-eco {
  display: grid;
  gap: 0.5rem;
  margin-top: 1.1rem;
}

.page-about .about-eco__item {
  overflow: hidden;
  border: 1px solid rgba(11, 22, 40, 0.16);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.55);
}

.page-about .about-eco__trigger {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 0.9rem;
  border: 0;
  background: none;
  color: var(--paper-ink);
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.page-about .about-eco__trigger .disclosure__label {
  flex: 1 1 auto;
}

.page-about .about-eco .disclosure__icon::before,
.page-about .about-eco .disclosure__icon::after {
  background: #b4570a;
}

.page-about .about-eco .disclosure__icon::before {
  top: 50%;
  left: 0;
  right: 0;
  height: 1.5px;
  transform: translateY(-50%);
}

.page-about .about-eco .disclosure__icon::after {
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1.5px;
  transform: translateX(-50%);
}

.page-about .about-eco__item[data-open="true"] .disclosure__icon::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-about .about-eco__panel {
  padding: 0 0.9rem 0.85rem;
}

.page-about .about-eco__panel p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.8;
  color: rgba(11, 22, 40, 0.75);
}

.page-about .about-next {
  margin-top: 0.6rem;
  padding: 1.25rem 1.1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(57, 255, 196, 0.1), rgba(255, 122, 24, 0.1) 58%, transparent);
}

.page-about .about-next__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--haze);
}

.page-about .about-next__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-next__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--fog);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-next__link:hover {
  color: var(--cyan);
  border-color: rgba(57, 255, 196, 0.5);
}

@media (min-width: 620px) {
  .page-about .about-flow__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-timeline {
    grid-auto-columns: minmax(15rem, 46%);
  }
}

@media (min-width: 780px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-team-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-wall-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-next__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-flow {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 1.4rem;
    align-items: start;
  }

  .page-about .about-timeline {
    grid-auto-columns: minmax(15rem, 1fr);
  }
}

@media (min-width: 960px) {
  .page-about .about-body {
    display: grid;
    grid-template-columns: 13rem minmax(0, 1fr);
    gap: 2.4rem;
    align-items: start;
    padding-top: 2.2rem;
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--head-h) + 1.4rem);
    margin: 0;
    padding: 0;
    background: none;
    border-bottom: 0;
    backdrop-filter: none;
  }

  .page-about .about-index__head {
    margin-bottom: 0.5rem;
  }

  .page-about .about-index__list {
    flex-direction: column;
    gap: 0.1rem;
    overflow: visible;
    padding: 0;
  }

  .page-about .about-index__link {
    display: flex;
    width: 100%;
    padding: 0.5rem 0.6rem;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: none;
    white-space: normal;
  }

  .page-about .about-index__link[aria-current="true"] {
    color: var(--cyan);
    background: linear-gradient(90deg, rgba(57, 255, 196, 0.14), transparent 82%);
    border-left-color: var(--cyan);
  }

  .page-about .about-section {
    padding: 1.8rem 1.6rem;
    margin-bottom: 1.2rem;
    scroll-margin-top: calc(var(--head-h) + 1.6rem);
  }
}

@media (min-width: 1160px) {
  .page-about .about-hero {
    padding: 2.4rem 0 3rem;
  }

  .page-about .about-team-grid {
    gap: 0.75rem;
  }

  .page-about .about-wall-grid {
    gap: 0.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index__link,
  .page-about .about-node__trigger,
  .page-about .about-next__link,
  .page-about .disclosure__icon::before,
  .page-about .disclosure__icon::after {
    transition: none;
  }
}