.page-about {
  --about-rail: 48px;
  --about-marker-gap: 14px;
  background: var(--c-deep);
  color: var(--c-white);
  font-family: var(--font-body);
  line-height: 1.7;
  position: relative;
  max-width: 100%;
  overflow-x: hidden;
}

.page-about .breadcrumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1.25rem 1.5rem 0;
  font-size: 13px;
  color: var(--c-mist);
}

.page-about .about-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  z-index: 1000;
  background: var(--c-accent);
  width: 0;
  pointer-events: none;
}

.page-about .about-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 520px;
  max-width: var(--container);
  margin: 0.5rem auto 0;
  border: 3px solid var(--c-outline);
  border-bottom: 6px solid var(--c-accent);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-about .about-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

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

.page-about .about-hero__shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(160deg, rgba(11, 61, 46, 0.25) 0%, rgba(5, 31, 23, 0.72) 68%, rgba(5, 31, 23, 0.92) 100%);
  pointer-events: none;
}

.page-about .about-hero__content {
  position: relative;
  z-index: 2;
  padding: 2rem 1.5rem 2rem;
}

.page-about .about-hero__kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--c-accent);
  margin: 0 0 0.75rem;
  text-transform: uppercase;
}

.page-about .about-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6.6vw, 3.5rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  color: var(--c-white);
  text-shadow: 4px 4px 0 rgba(5, 31, 23, 0.6);
}

.page-about .about-hero__lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-mist);
  max-width: 640px;
  margin: 0 0 1.5rem;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 0;
  padding: 0;
}

.page-about .about-hero__stat {
  background: rgba(5, 31, 23, 0.78);
  border: 1px solid var(--c-outline);
  border-left: 4px solid var(--c-accent);
  padding: 0.75rem 0.9rem;
  backdrop-filter: blur(2px);
  min-width: 0;
}

.page-about .about-hero__num {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-accent);
  display: block;
}

.page-about .about-hero__label {
  font-size: 12px;
  color: var(--c-mist);
  margin: 0;
  line-height: 1.4;
}

.page-about .about-chapternav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  max-width: var(--container);
  margin: 1rem auto;
  padding: 0.75rem 1rem;
  background: var(--c-panel);
  border-top: 3px solid var(--c-accent);
  border-bottom: 3px solid var(--c-outline);
}

.page-about .about-chapternav a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-white);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--c-outline);
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-chapternav a:hover,
.page-about .about-chapternav a:focus {
  background: var(--c-hover);
  color: var(--c-accent);
  border-color: var(--c-accent);
}

.page-about .about-timeline {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 48px;
  top: 4rem;
  bottom: 4rem;
  width: 3px;
  background: linear-gradient(180deg, var(--c-accent) 0%, var(--c-outline) 38%, var(--c-panel) 92%);
}

.page-about .about-chapter {
  display: grid;
  grid-template-columns: var(--about-rail) 1fr;
  gap: var(--about-marker-gap);
  margin-bottom: 3rem;
  position: relative;
}

.page-about .about-chapter__marker {
  width: var(--about-rail);
  height: var(--about-rail);
  background: var(--c-primary);
  border: 2px solid var(--c-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-accent);
  position: relative;
  z-index: 2;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
}

.page-about .about-chapter__marker span {
  transform: skewX(-6deg);
  font-size: 14px;
}

.page-about .about-chapter__panel {
  background: var(--c-primary);
  border: 1px solid var(--c-outline);
  border-left: 5px solid var(--c-accent);
  box-shadow: var(--shadow-card);
  padding: 1.5rem 1.25rem;
  min-width: 0;
  position: relative;
}

.page-about .about-chapter__panel::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-top: 20px solid var(--c-deep);
  border-left: 20px solid transparent;
}

.page-about .about-chapter__panel::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 0;
  border-bottom: 20px solid var(--c-deep);
  border-right: 20px solid transparent;
}

.page-about .about-chapter .section-head {
  margin-bottom: 1rem;
}

.page-about .about-chapter .section-head__index {
  color: var(--c-accent);
}

.page-about .about-chapter h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 900;
  font-style: italic;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--c-white);
  margin: 0;
}

.page-about .about-chapter__text {
  font-size: 15px;
  color: var(--c-mist);
  margin: 0 0 1rem;
}

.page-about .about-chapter__text a {
  color: var(--c-accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 255, 0, 0.4);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-about .about-chapter__text a:hover {
  background: var(--c-hover);
  border-color: var(--c-accent);
}

.page-about .about-chapter__note {
  font-size: 13px;
  color: var(--c-mist);
  border-left: 3px solid var(--c-outline);
  padding-left: 0.75rem;
  margin: 1rem 0 0;
}

.page-about .about-chapter__note a {
  color: var(--c-accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 255, 0, 0.4);
}

.page-about .text-mono {
  font-family: var(--font-mono);
  color: var(--c-accent);
  font-weight: 700;
}

.page-about .about-id-panel {
  display: grid;
  grid-template-columns: 1fr;
  border: 2px solid var(--c-outline);
  background: var(--c-panel);
  margin: 1.25rem 0;
}

.page-about .about-id-panel__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--c-outline);
}

.page-about .about-id-panel__row:last-child {
  border-bottom: 0;
}

.page-about .about-id-panel__row span {
  font-size: 13px;
  color: var(--c-mist);
  white-space: nowrap;
  flex-shrink: 0;
}

.page-about .about-id-panel__row strong {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--c-white);
  text-align: right;
  word-break: break-all;
}

.page-about .about-data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.page-about .about-data-cell {
  background: var(--c-deep);
  border: 1px solid var(--c-outline);
  border-bottom: 4px solid var(--c-data);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.page-about .about-data-cell__num {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--c-accent);
  line-height: 1;
}

.page-about .about-data-cell__label {
  font-size: 12px;
  color: var(--c-mist);
}

.page-about .about-fields {
  background: var(--c-panel);
  border-left: 6px solid var(--c-accent);
  padding: 1.25rem;
  margin: 1.5rem 0;
}

.page-about .about-fields h3 {
  font-size: 1rem;
  margin: 0 0 0.75rem;
  color: var(--c-white);
}

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

.page-about .about-fields__list li {
  background: var(--c-deep);
  border: 1px solid var(--c-outline);
  padding: 0.5rem 0.75rem;
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--c-white);
}

.page-about .about-fields__note {
  font-size: 14px;
  color: var(--c-mist);
  margin: 0;
}

.page-about .about-flow {
  list-style: none;
  margin: 1.5rem 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-about .about-flow__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  padding: 1rem;
  background: var(--c-deep);
  border: 1px solid var(--c-outline);
  position: relative;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.page-about .about-flow__item:hover,
.page-about .about-flow__item:focus-within {
  border-color: var(--c-accent);
  background: rgba(11, 61, 46, 0.85);
  transform: translateX(4px);
}

.page-about .about-flow__step {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  background: var(--c-primary);
  border: 2px solid var(--c-accent);
  color: var(--c-accent);
}

.page-about .about-flow__body h3 {
  font-size: 1rem;
  margin: 0 0 0.25rem;
  color: var(--c-white);
}

.page-about .about-flow__body p {
  font-size: 14px;
  color: var(--c-mist);
  margin: 0;
  line-height: 1.6;
}

.page-about .about-flow__visual {
  margin: 1.5rem 0;
  border: 2px solid var(--c-outline);
  box-shadow: var(--shadow-card);
  background: var(--c-deep);
}

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

.page-about .about-team {
  background: var(--c-panel);
  border: 2px dashed var(--c-outline);
  padding: 1.25rem;
  margin: 1.5rem 0 1rem;
}

.page-about .about-team h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  color: var(--c-white);
}

.page-about .about-team p {
  font-size: 14px;
  color: var(--c-mist);
  margin: 0;
  line-height: 1.65;
}

.page-about .about-os-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.page-about .about-os-visual {
  margin: 0 auto;
  border: 2px solid var(--c-outline);
  box-shadow: var(--shadow-card);
  max-width: 280px;
  width: 100%;
}

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

.page-about .about-os-list {
  list-style: none;
  margin: 1rem 0 1.5rem;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-about .about-os-list li {
  position: relative;
  padding: 0.6rem 0.75rem 0.6rem 2.25rem;
  background: var(--c-deep);
  border: 1px solid var(--c-outline);
  font-size: 14px;
  color: var(--c-white);
  transition: border-color 0.2s ease;
}

.page-about .about-os-list li::before {
  content: "●";
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-accent);
  font-size: 10px;
}

.page-about .about-os-list li:hover {
  border-color: var(--c-accent);
}

.page-about .about-values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

.page-about .about-value-card {
  background: var(--c-deep);
  border: 2px solid var(--c-outline);
  padding: 1.5rem 1.25rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-about .about-value-card:hover {
  border-color: var(--c-accent);
  transform: translateY(-4px);
}

.page-about .about-value-card__index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-accent);
  display: block;
  margin-bottom: 0.75rem;
}

.page-about .about-value-card h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  font-style: italic;
  margin: 0 0 0.5rem;
  color: var(--c-white);
}

.page-about .about-value-card p {
  font-size: 14px;
  color: var(--c-mist);
  margin: 0;
  line-height: 1.6;
}

.page-about .about-stance {
  border: 2px solid var(--c-outline);
  border-left: 6px solid var(--c-accent);
  background: var(--c-panel);
  padding: 1.5rem;
  margin-top: 1rem;
}

.page-about .about-stance h3 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
  color: var(--c-white);
}

.page-about .about-stance p {
  font-size: 14px;
  color: var(--c-mist);
  margin: 0;
  line-height: 1.65;
}

.page-about .about-stance a {
  color: var(--c-accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 255, 0, 0.4);
}

.page-about .about-stance a:hover {
  background: var(--c-hover);
}

.page-about .about-mission {
  background: var(--c-primary);
  border-top: 6px solid var(--c-accent);
  border-bottom: 6px solid var(--c-accent);
  padding: 3rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-about .about-mission::before {
  content: "";
  position: absolute;
  top: 0;
  left: -10%;
  width: 120%;
  height: 100%;
  background: repeating-linear-gradient(115deg, transparent 0px, transparent 24px, rgba(212, 255, 0, 0.05) 24px, rgba(212, 255, 0, 0.05) 25px);
  pointer-events: none;
}

.page-about .about-mission__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--c-accent);
  margin: 0 0 1rem;
  position: relative;
}

.page-about .about-mission h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 auto 1.5rem;
  color: var(--c-white);
  max-width: 12em;
  position: relative;
}

.page-about .about-mission__text {
  max-width: 640px;
  margin: 0 auto 2rem;
  color: var(--c-mist);
  font-size: 15px;
  position: relative;
}

.page-about .about-mission__cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  position: relative;
}

@media (min-width: 768px) {
  .page-about {
    --about-rail: 80px;
  }

  .page-about .about-hero {
    min-height: 560px;
  }

  .page-about .about-hero__content {
    padding: 3rem 2rem 2.5rem;
  }

  .page-about .about-hero h1 {
    font-size: clamp(2.8rem, 7vw, 4.5rem);
  }

  .page-about .about-hero__lead {
    font-size: 17px;
    max-width: 720px;
  }

  .page-about .about-hero__stats {
    grid-template-columns: repeat(3, auto);
    gap: 1rem;
    max-width: none;
  }

  .page-about .about-hero__stat {
    min-width: 150px;
  }

  .page-about .about-hero__num {
    font-size: 2.25rem;
  }

  .page-about .about-timeline::before {
    left: 64px;
  }

  .page-about .about-chapter {
    grid-template-columns: var(--about-rail) 1fr;
    gap: 28px;
  }

  .page-about .about-chapter__marker span {
    font-size: 18px;
  }

  .page-about .about-chapter__panel {
    padding: 2rem;
  }

  .page-about .about-chapter h2 {
    font-size: 2.25rem;
  }

  .page-about .about-chapter__text {
    font-size: 15.5px;
  }

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

  .page-about .about-id-panel__row:nth-child(2n) {
    border-left: 1px solid var(--c-outline);
  }

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

  .page-about .about-data-cell__num {
    font-size: 3rem;
  }

  .page-about .about-fields__list {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-about .about-os-layout {
    grid-template-columns: 260px 1fr;
    align-items: start;
    gap: 2rem;
  }

  .page-about .about-os-visual {
    max-width: 260px;
    margin: 0;
  }

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

  .page-about .about-mission {
    padding: 4rem 2rem;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero__content {
    padding-left: 3rem;
    padding-right: 3rem;
  }

  .page-about .about-timeline {
    padding-left: 2rem;
    padding-right: 2rem;
  }

  .page-about .about-timeline::before {
    left: 53px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}