.page-about {
  position: relative;
  background-color: var(--bg);
  color: var(--text);
  overflow: hidden;
}

.page-about .section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--purple);
}

.page-about .section-lead {
  color: var(--muted);
  max-width: 42em;
  line-height: 1.8;
  font-size: 1rem;
}

.page-about .about-breadcrumb {
  max-width: calc(var(--content) + 3rem);
  margin-inline: auto;
  padding: 1.5rem 1.5rem 0;
}

.page-about .about-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.page-about .about-breadcrumb a {
  color: var(--blue);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

.page-about .about-breadcrumb a:hover {
  color: var(--purple);
}

.page-about .about-breadcrumb li + li::before {
  content: "/";
  color: var(--metal);
  margin-inline: 0.5rem;
}

.page-about .about-hero {
  position: relative;
  padding-block: 3rem 2.5rem;
  background-image:
    linear-gradient(rgba(160, 32, 240, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(at 70% 20%, rgba(160, 32, 240, 0.18), transparent 60%);
  pointer-events: none;
}

.page-about .about-hero-grid,
.page-about .about-story-grid,
.page-about .about-growth-head,
.page-about .about-growth-banner,
.page-about .about-growth-grid,
.page-about .about-eco-head,
.page-about .about-eco-grid,
.page-about .about-eco-flow,
.page-about .about-privacy-grid {
  max-width: var(--content);
  margin-inline: auto;
}

.page-about .about-hero-grid {
  position: relative;
  display: grid;
  gap: 2rem;
}

.page-about .about-hero-content .section-label {
  color: var(--blue);
  background: rgba(0, 212, 255, 0.12);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--radius-pill);
  padding: 0.4em 1em;
}

.page-about .about-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.75rem);
  line-height: 1.14;
  font-weight: 800;
  color: var(--white);
  max-width: 13em;
  margin: 1rem 0 1.5rem;
  text-wrap: balance;
}

.page-about .about-hero-lead {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--muted);
  max-width: 38em;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.page-about .about-hero-aside {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  min-height: 100%;
}

.page-about .hero-aside-card {
  position: relative;
  border: 1px solid var(--metal);
  border-radius: var(--radius-lg);
  background: rgba(26, 10, 46, 0.72);
  backdrop-filter: blur(8px);
  padding: 1.5rem;
}

.page-about .hero-aside-index {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--purple);
}

.page-about .hero-aside-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .hero-aside-list div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px dashed var(--metal);
}

.page-about .hero-aside-list div:last-child {
  border-bottom: 0;
}

.page-about .hero-aside-list dt {
  color: var(--muted);
  font-size: 0.8125rem;
}

.page-about .hero-aside-list dd {
  margin: 0;
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.page-about .hero-aside-vertical {
  writing-mode: vertical-rl;
  align-self: flex-end;
  height: 8rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.4em;
  color: var(--purple);
  border-right: 1px solid var(--metal);
  padding-right: 0.75rem;
  opacity: 0.8;
}

.page-about .about-story {
  padding-block: 3rem;
  border-top: 1px solid var(--metal);
}

.page-about .about-story-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-about .about-story-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--metal);
  aspect-ratio: 10 / 7;
}

.page-about .about-story-media::after {
  content: "B-01";
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--white);
  background: rgba(10, 10, 15, 0.65);
  border: 1px solid var(--metal);
  border-radius: var(--radius-pill);
  padding: 0.35em 0.75em;
  backdrop-filter: blur(4px);
}

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

.page-about .about-story-body h2,
.page-about .about-growth-head h2,
.page-about .about-eco-head h2,
.page-about .privacy-main h2 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1.2;
  color: var(--white);
  margin: 1rem 0 1rem;
}

.page-about .about-story-body p,
.page-about .privacy-main p {
  color: var(--muted);
  line-height: 1.9;
  max-width: 42em;
  margin-bottom: 1rem;
}

.page-about .about-stats {
  padding-block: 2.5rem 3rem;
}

.page-about .stats-list {
  max-width: var(--content);
  margin-inline: auto;
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.page-about .stat-item {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--metal);
  background: linear-gradient(145deg, rgba(160, 32, 240, 0.08), rgba(26, 10, 46, 0.6));
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
}

.page-about .stat-item::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 2px;
  background: var(--pink-gradient);
  opacity: 0.7;
}

.page-about .stat-value {
  display: block;
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1;
  color: var(--white);
}

.page-about .stat-unit {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--muted);
}

.page-about .about-growth {
  padding-block: 3rem 3.5rem;
  border-top: 1px solid var(--metal);
}

.page-about .about-growth-head {
  margin-bottom: 2rem;
}

.page-about .about-growth-head .section-lead,
.page-about .about-eco-head .section-lead {
  margin-top: 0.75rem;
}

.page-about .about-growth-banner {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--metal);
  margin-bottom: 2.5rem;
  aspect-ratio: 3 / 2;
}

.page-about .about-growth-banner::after {
  content: "T-02";
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--white);
  background: rgba(10, 10, 15, 0.65);
  border: 1px solid var(--metal);
  border-radius: var(--radius-pill);
  padding: 0.35em 0.75em;
  backdrop-filter: blur(4px);
}

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

.page-about .about-growth-grid {
  display: grid;
  gap: 3rem;
}

.page-about .about-timeline h3,
.page-about .about-arch h3 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  letter-spacing: 0.06em;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.page-about .timeline-list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .timeline-list::before {
  content: "";
  position: absolute;
  left: 0.55rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--purple), var(--blue), transparent);
}

.page-about .timeline-item {
  position: relative;
  padding: 0 0 2rem 2.25rem;
}

.page-about .timeline-item:last-child {
  padding-bottom: 0;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.35rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--purple);
  box-shadow: 0 0 16px rgba(160, 32, 240, 0.7);
}

.page-about .timeline-year {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--blue);
  background: rgba(0, 212, 255, 0.12);
  border: 1px solid rgba(0, 212, 255, 0.25);
  border-radius: var(--radius-pill);
  padding: 0.2em 0.9em;
  margin-bottom: 0.5rem;
}

.page-about .timeline-body h4 {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  margin: 0 0 0.35rem;
}

.page-about .timeline-body p {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
}

.page-about .about-arch-media {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--metal);
  margin-bottom: 1.25rem;
  aspect-ratio: 5 / 4;
}

.page-about .about-arch-media::after {
  content: "A-00";
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--white);
  background: rgba(10, 10, 15, 0.65);
  border: 1px solid var(--metal);
  border-radius: var(--radius-pill);
  padding: 0.35em 0.75em;
  backdrop-filter: blur(4px);
}

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

.page-about .arch-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: grid;
  gap: 0.875rem;
}

.page-about .arch-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.875rem;
  border: 1px solid var(--metal);
  border-radius: var(--radius-md);
  padding: 1rem 1.125rem;
  background: rgba(10, 10, 15, 0.6);
  transition:
    border-color var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease),
    background var(--duration) var(--ease);
}

.page-about .arch-item:hover {
  border-color: var(--purple);
  box-shadow: var(--shadow-purple);
  background: rgba(160, 32, 240, 0.08);
}

.page-about .arch-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--purple);
  border: 1px solid rgba(160, 32, 240, 0.4);
  border-radius: var(--radius-pill);
  padding: 0.3em 0.7em;
  height: fit-content;
}

.page-about .arch-content h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin: 0 0 0.3rem;
}

.page-about .arch-content p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--muted);
  margin: 0;
}

.page-about .about-ecosystem {
  padding-block: 3rem 3.5rem;
  border-top: 1px solid var(--metal);
}

.page-about .about-eco-head {
  margin-bottom: 2rem;
}

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

.page-about .eco-card {
  background: linear-gradient(160deg, rgba(26, 10, 46, 0.8), rgba(10, 10, 15, 0.8));
  border: 1px solid var(--metal);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  transition:
    transform var(--duration) var(--ease),
    border-color var(--duration) var(--ease);
}

.page-about .eco-card:hover {
  transform: translateY(-4px);
  border-color: var(--purple);
}

.page-about .eco-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pink);
  background: rgba(255, 110, 199, 0.1);
  border: 1px solid rgba(255, 110, 199, 0.3);
  border-radius: var(--radius-pill);
  padding: 0.3em 0.9em;
  margin-bottom: 1rem;
}

.page-about .eco-card h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 0.6rem;
}

.page-about .eco-card p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.page-about .eco-num {
  display: inline-block;
  margin-top: 1rem;
  font-family: var(--font-head);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--blue);
}

.page-about .about-eco-flow {
  margin-top: 3rem;
  border: 1px solid var(--metal);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  background: rgba(10, 10, 15, 0.5);
}

.page-about .about-eco-flow > h3 {
  font-family: var(--font-head);
  font-size: 1.125rem;
  color: var(--white);
  margin: 0 0 1.25rem;
}

.page-about .flow-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.page-about .flow-list li {
  position: relative;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--metal);
}

.page-about .flow-index {
  position: absolute;
  top: -0.5rem;
  left: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--purple);
  background: rgba(160, 32, 240, 0.18);
  border: 1px solid rgba(160, 32, 240, 0.35);
  border-radius: var(--radius-pill);
  padding: 0.2em 0.7em;
}

.page-about .flow-list h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin: 0.5rem 0 0.3rem;
}

.page-about .flow-list p {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--muted);
  margin: 0;
}

.page-about .about-privacy {
  padding-block: 3.5rem;
  border-top: 1px solid var(--metal);
  background-image:
    linear-gradient(rgba(160, 32, 240, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

.page-about .about-privacy-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-about .privacy-main h2 {
  font-weight: 800;
}

.page-about .about-privacy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-about .privacy-aside {
  border-left: 2px solid var(--purple);
  background: rgba(160, 32, 240, 0.08);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: 1.5rem;
}

.page-about .privacy-aside ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .privacy-aside li {
  position: relative;
  padding: 0.7rem 0 0.7rem 1.5rem;
  font-size: 0.9375rem;
  color: var(--text);
  border-bottom: 1px dashed rgba(46, 46, 58, 0.7);
}

.page-about .privacy-aside li:last-child {
  border-bottom: 0;
}

.page-about .privacy-aside li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.6);
}

@media (min-width: 768px) {
  .page-about .stats-list {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .page-about .flow-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-about .about-eco-flow {
    padding: 2rem;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero {
    padding-block: 4rem 3rem;
  }

  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 3rem;
    align-items: stretch;
  }

  .page-about .about-story {
    padding-block: 4rem;
  }

  .page-about .about-story-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 4rem;
  }

  .page-about .about-privacy-grid {
    grid-template-columns: 1.3fr 0.7fr;
    gap: 3rem;
  }
}

@media (min-width: 1024px) {
  .page-about .about-growth {
    padding-block: 4rem;
  }

  .page-about .about-growth-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
  }
}