.page-about {
  --about-line: rgba(7, 16, 31, 0.16);
  background: var(--color-warm-paper);
  color: var(--color-space-ink);
  font-family: var(--font-body);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-space-ink);
  color: var(--color-warm-paper);
  clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%);
  padding-top: 24px;
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

.page-about .about-hero .breadcrumb {
  margin: 0 0 24px;
}

.page-about .about-hero .breadcrumb a {
  color: var(--color-warm-paper);
  text-decoration: none;
}

.page-about .about-hero .breadcrumb a:hover {
  color: var(--color-active-orange);
}

.page-about .about-hero__kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-signal-green);
  border-left: 2px solid var(--color-active-orange);
  padding-left: 12px;
  margin: 24px 0 16px;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 6vw, 88px);
  line-height: 1.05;
  margin: 0 0 24px;
  max-width: 12em;
  text-wrap: balance;
}

.page-about .about-hero__lead {
  font-size: clamp(16px, 1.2vw, 20px);
  line-height: 1.7;
  color: rgba(245, 239, 227, 0.82);
  max-width: 44em;
  margin: 0;
}

.page-about .about-hero__brandshift {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid rgba(245, 239, 227, 0.16);
}

.page-about .about-hero__brand-old,
.page-about .about-hero__brand-new {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3vw, 40px);
  letter-spacing: 0.02em;
}

.page-about .about-hero__brand-old {
  color: var(--color-gray-blue);
  text-decoration: line-through;
  text-decoration-color: var(--color-legacy-red);
}

.page-about .about-hero__brand-arrow {
  color: var(--color-active-orange);
  font-family: var(--font-mono);
  font-size: 24px;
}

.page-about .about-hero__brand-new {
  color: var(--color-warm-paper);
}

.page-about .about-hero__brand-new sup {
  font-size: 0.45em;
  color: var(--color-signal-green);
  margin-left: 6px;
}

.page-about .about-hero__badge {
  font-size: 12px;
  font-family: var(--font-mono);
  background: rgba(255, 90, 46, 0.16);
  border: 1px solid rgba(255, 90, 46, 0.5);
  color: var(--color-active-orange);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero__actions .btn--secondary {
  border-color: rgba(245, 239, 227, 0.4);
  color: var(--color-warm-paper);
}

.page-about .about-hero__actions .btn--secondary:hover {
  border-color: var(--color-warm-paper);
}

.page-about .about-hero__backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.page-about .about-hero__year {
  position: absolute;
  top: 8%;
  right: 3%;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(56px, 13vw, 200px);
  line-height: 1;
  letter-spacing: -0.06em;
  color: rgba(245, 239, 227, 0.06);
}

.page-about .about-hero__year--2026 {
  top: auto;
  bottom: 4%;
  right: 22%;
  font-size: clamp(88px, 18vw, 260px);
  color: rgba(255, 90, 46, 0.18);
}

.page-about .about-index {
  position: relative;
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 18px clamp(20px, 4vw, 64px) 0;
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-about .about-index a {
  color: var(--color-deep-slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding: 4px 0;
  transition: color var(--duration) var(--ease), border-color var(--duration) var(--ease);
}

.page-about .about-index a:hover {
  color: var(--color-active-orange);
  border-bottom-color: var(--color-active-orange);
}

.page-about .about-index a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 4px;
}

.page-about .about-chapter,
.page-about .about-scale__inner,
.page-about .about-ecosystem__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 96px) clamp(20px, 4vw, 64px);
}

.page-about .about-chapter {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px 40px;
}

@media (min-width: 768px) {
  .page-about .about-chapter {
    grid-template-columns: 220px 1fr;
  }
}

.page-about .about-chapter__head,
.page-about .about-timeline__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  align-content: start;
  border-left: 3px solid var(--color-active-orange);
  padding-left: 16px;
}

.page-about .section-index {
  font-family: var(--font-mono);
  font-size: clamp(13px, 1vw, 16px);
  letter-spacing: 0.08em;
  color: var(--color-active-orange);
}

.page-about .section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 3.4vw, 52px);
  line-height: 1.08;
  margin: 0;
}

.page-about .about-chapter__body {
  max-width: 760px;
}

.page-about .about-chapter__lead {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.45;
  margin: 0 0 20px;
}

.page-about .about-chapter__body p {
  font-size: clamp(15px, 1vw, 17px);
  line-height: 1.8;
  margin: 0 0 16px;
  color: var(--color-deep-slate);
}

.page-about .about-chapter__body h3 {
  font-size: clamp(16px, 1.4vw, 20px);
  font-weight: 700;
  margin: 28px 0 10px;
  border-bottom: 2px solid var(--color-line-muted);
  padding-bottom: 6px;
}

.page-about .about-chapter__list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  border-top: 1px solid var(--color-line-muted);
}

.page-about .about-chapter__list li {
  border-bottom: 1px solid var(--color-line-muted);
  padding: 12px 0;
  font-size: 15px;
  line-height: 1.6;
  display: flex;
  gap: 12px;
  color: var(--color-deep-slate);
}

.page-about .about-chapter__list li::before {
  content: "—";
  color: var(--color-active-orange);
  font-family: var(--font-mono);
}

.page-about .about-chapter__aside {
  background: var(--color-sand);
  border: 1px solid var(--color-line-muted);
  border-left: 4px solid var(--color-legacy-red);
  padding: 18px 20px;
  font-size: 14px;
  line-height: 1.7;
  margin-top: 24px;
}

.page-about .about-chapter__aside p {
  margin: 0 0 12px;
  font-size: 14px;
}

.page-about .about-chapter__aside--orange {
  border-left-color: var(--color-active-orange);
  background: rgba(255, 90, 46, 0.08);
}

.page-about .about-2026__entries {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 768px) {
  .page-about .about-2026__entries {
    grid-template-columns: repeat(2, 1fr);
  }
}

.page-about .about-2026__entries li {
  background: var(--color-warm-paper);
  border: 1px solid var(--color-line-muted);
  border-left: 4px solid var(--color-active-orange);
  padding: 16px 18px;
  box-shadow: var(--shadow-soft);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
  font-size: 14px;
  line-height: 1.7;
  position: relative;
}

.page-about .about-2026__entries li:hover {
  transform: translate3d(0, -2px, 0);
  box-shadow: var(--shadow-lift);
}

.page-about .about-2026__entries strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-active-orange);
  margin-bottom: 4px;
}

.page-about .about-timeline {
  position: relative;
  overflow: hidden;
  background: var(--color-space-ink);
  color: var(--color-warm-paper);
  padding: clamp(48px, 7vw, 104px) clamp(20px, 4vw, 64px);
}

.page-about .about-timeline__years-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 16px;
  padding: 5% 3% 0;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(52px, 14vw, 170px);
  line-height: 0.9;
  letter-spacing: -0.06em;
  color: rgba(245, 239, 227, 0.06);
  pointer-events: none;
}

@media (min-width: 768px) {
  .page-about .about-timeline__years-backdrop {
    grid-template-columns: repeat(4, 1fr);
    font-size: clamp(60px, 8vw, 150px);
  }
}

.page-about .about-timeline__years-backdrop span:nth-child(2) {
  color: rgba(195, 245, 62, 0.08);
}

.page-about .about-timeline__years-backdrop span:nth-child(3) {
  color: rgba(245, 239, 227, 0.04);
  transform: translateY(14%);
}

.page-about .about-timeline__years-backdrop span:nth-child(4) {
  color: rgba(255, 90, 46, 0.18);
}

.page-about .about-timeline__head {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto 20px;
  border-left-color: var(--color-signal-green);
}

.page-about .about-timeline__head .section-index {
  color: var(--color-signal-green);
}

.page-about .about-timeline__head .section-title {
  color: var(--color-warm-paper);
}

.page-about .about-timeline__intro {
  max-width: 46em;
  color: rgba(245, 239, 227, 0.72);
  font-size: 15px;
  line-height: 1.7;
  margin: 8px 0 0;
}

.page-about .about-timeline__figure {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto 12px;
}

.page-about .about-timeline__figure img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid rgba(245, 239, 227, 0.14);
  object-fit: cover;
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: var(--container-max);
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(245, 239, 227, 0.14);
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 26px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(to bottom, rgba(255, 90, 46, 0.5), rgba(245, 239, 227, 0.12));
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  align-items: stretch;
  padding: 0;
}

.page-about .about-timeline__marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 16px;
  gap: 4px;
}

.page-about .about-timeline__ver {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  color: var(--color-signal-green);
  border: 1px solid rgba(195, 245, 62, 0.4);
  border-radius: 999px;
  padding: 2px 8px;
  background: rgba(195, 245, 62, 0.1);
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-gray-blue);
}

.page-about .about-timeline__event {
  margin: 10px 0;
  border: 1px solid rgba(245, 239, 227, 0.14);
  background: rgba(26, 37, 55, 0.9);
  transition: background var(--duration) var(--ease), border-color var(--duration) var(--ease);
}

.page-about .about-timeline__event:hover {
  background: var(--color-deep-slate);
  border-color: rgba(255, 90, 46, 0.5);
}

.page-about .about-timeline__event summary {
  cursor: pointer;
  padding: 14px 16px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: clamp(16px, 1.3vw, 19px);
  font-weight: 700;
  font-family: var(--font-body);
}

.page-about .about-timeline__event summary::-webkit-details-marker {
  display: none;
}

.page-about .about-timeline__event summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--color-active-orange);
  transition: transform var(--duration) var(--ease);
}

.page-about .about-timeline__event[open] summary::after {
  transform: rotate(45deg);
}

.page-about .about-timeline__event summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 4px;
}

.page-about .about-timeline__event p {
  margin: 0;
  padding: 0 16px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 239, 227, 0.74);
}

.page-about .about-scale__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .about-scale__intro {
  font-size: clamp(16px, 1.4vw, 20px);
  line-height: 1.7;
  color: var(--color-deep-slate);
  max-width: 46em;
  margin: 0;
}

.page-about .about-scale__stat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 12px 0 8px;
}

@media (min-width: 700px) {
  .page-about .about-scale__stat-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-about .about-stat-card {
  position: relative;
  background: var(--color-warm-paper);
  border: 1px solid var(--color-line-muted);
  border-left: 4px solid var(--color-active-orange);
  padding: 22px 18px;
  box-shadow: var(--shadow-soft);
}

.page-about .about-stat-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-left: 16px solid transparent;
  border-top: 16px solid var(--color-space-ink);
}

.page-about .about-stat-card__value {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1;
  color: var(--color-space-ink);
  letter-spacing: -0.02em;
}

.page-about .about-stat-card__label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--color-gray-blue);
  line-height: 1.5;
}

.page-about .about-scale__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px 14px;
  margin: 16px 0 8px;
}

@media (max-width: 640px) {
  .page-about .about-scale__metrics {
    grid-template-columns: 1fr 1fr;
  }
}

.page-about .about-scale__metric {
  border-top: 3px solid var(--color-space-ink);
  padding-top: 12px;
}

.page-about .about-scale__metric-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 34px);
  color: var(--color-active-orange);
}

.page-about .about-scale__metric-label {
  font-size: 12px;
  color: var(--color-gray-blue);
  line-height: 1.4;
  display: block;
  margin-top: 4px;
}

.page-about .about-scale__figure {
  margin: 20px 0 12px;
}

.page-about .about-scale__figure img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--color-line-muted);
  object-fit: cover;
}

.page-about .about-scale__detail {
  margin-top: 8px;
}

.page-about .about-scale__detail h3 {
  font-size: clamp(16px, 1.4vw, 20px);
  font-weight: 700;
  border-bottom: 2px solid var(--color-line-muted);
  padding-bottom: 6px;
  display: inline-block;
}

.page-about .about-ecosystem__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .about-ecosystem__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
  margin-top: 8px;
}

@media (min-width: 768px) {
  .page-about .about-ecosystem__grid {
    grid-template-columns: 1fr 0.8fr;
  }
}

.page-about .about-ecosystem__content h3 {
  font-size: clamp(17px, 1.4vw, 20px);
  font-weight: 700;
  margin: 24px 0 8px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--color-line-muted);
  position: relative;
  padding-left: 14px;
}

.page-about .about-ecosystem__content h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 6px;
  height: 6px;
  background: var(--color-active-orange);
}

.page-about .about-ecosystem__content h3:first-child {
  margin-top: 0;
}

.page-about .about-ecosystem__content p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-deep-slate);
  margin: 0 0 16px;
}

.page-about .about-ecosystem__badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 0 20px;
}

.page-about .about-ecosystem__badge-row .badge {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 12px;
  border: 1px solid var(--color-line-muted);
  background: var(--color-warm-paper);
}

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

.page-about .about-ecosystem__figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-about .about-ecosystem__figure::after {
  content: "";
  display: block;
  height: 14px;
  background: var(--color-active-orange);
  clip-path: polygon(0 0, 100% 0, 100% 40%, 0 100%);
  margin-top: -2px;
}

.page-about .about-cta {
  margin-top: clamp(40px, 6vw, 88px);
  background: var(--color-active-orange);
  color: var(--color-space-ink);
  clip-path: polygon(0 4%, 100% 0, 100% 100%, 0 100%);
  padding: clamp(64px, 9vw, 128px) clamp(20px, 4vw, 64px) clamp(40px, 6vw, 72px);
}

.page-about .about-cta__inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.page-about .about-cta__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 4.5vw, 60px);
  line-height: 1.05;
  margin: 0 0 16px;
  max-width: 16em;
}

.page-about .about-cta__text {
  font-size: 15px;
  line-height: 1.8;
  max-width: 42em;
  margin: 0 0 24px;
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.page-about .about-cta__links .btn--primary {
  background: var(--color-space-ink);
  border-color: var(--color-space-ink);
  color: var(--color-warm-paper);
}

.page-about .about-cta__links .btn--secondary {
  background: transparent;
  border-color: var(--color-space-ink);
  color: var(--color-space-ink);
}

.page-about .about-cta__links .btn--secondary:hover {
  background: rgba(7, 16, 31, 0.08);
}

.page-about .about-cta__foot {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(7, 16, 31, 0.8);
  border-top: 1px solid rgba(7, 16, 31, 0.2);
  padding-top: 16px;
}

.page-about .about-cta__foot a {
  color: var(--color-space-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-cta__foot a:hover {
  color: var(--color-link-blue);
}