.page-about {
  --about-gutter: clamp(14px, 3vw, 28px);
  display: block;
  padding-bottom: clamp(40px, 7vw, 96px);
}

.page-about .breadcrumbs {
  margin: 4px 0 clamp(14px, 2.4vw, 24px);
  font-size: 13px;
  color: var(--ml-sage);
}

.page-about .breadcrumbs a {
  color: var(--ml-cyan-soft);
  text-decoration: none;
}

.page-about .breadcrumbs a:hover,
.page-about .breadcrumbs a:focus-visible {
  color: var(--ml-cyan);
  text-decoration: underline;
}

/* ---------- mast ---------- */
.page-about .about-mast {
  position: relative;
  border-bottom: 1px solid var(--ml-line);
  padding-bottom: clamp(20px, 3vw, 36px);
  margin-bottom: clamp(28px, 4.4vw, 56px);
}

.page-about .about-mast::before {
  content: "";
  position: absolute;
  left: 0;
  top: -10px;
  width: 54px;
  height: 2px;
  background: var(--ml-orange);
}

.page-about .about-mast .eyebrow {
  margin: 0 0 10px;
}

.page-about .about-mast h1 {
  font-family: var(--ml-font-display);
  font-weight: 800;
  font-size: clamp(32px, 7.2vw, 66px);
  line-height: 1.04;
  letter-spacing: .01em;
  color: var(--ml-chalk);
  margin: 0 0 clamp(14px, 2vw, 22px);
  max-width: 22ch;
}

.page-about .about-mast .lede {
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--ml-sage);
  max-width: 62ch;
  margin: 0 0 clamp(18px, 2.6vw, 30px);
}

.page-about .mast-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--ml-line);
  border: 1px solid var(--ml-line);
  border-radius: var(--ml-radius);
  overflow: hidden;
}

.page-about .mast-figures__item {
  background: var(--ml-panel);
  padding: 14px 16px;
}

.page-about .mast-figures dt {
  font-size: 12px;
  color: var(--ml-sage);
  letter-spacing: .04em;
  margin-bottom: 6px;
}

.page-about .mast-figures dd {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1;
  color: var(--ml-cyan);
  font-weight: 600;
}

/* ---------- blocks ---------- */
.page-about .about-block {
  margin-bottom: clamp(34px, 5.4vw, 72px);
  padding-top: clamp(6px, 1vw, 12px);
}

.page-about .about-block__head {
  margin-bottom: clamp(16px, 2.4vw, 28px);
}

.page-about .about-block__head .eyebrow {
  margin: 0 0 8px;
}

.page-about .about-block__head .section-title {
  font-family: var(--ml-font-display);
  font-weight: 700;
  font-size: clamp(23px, 3.6vw, 38px);
  line-height: 1.16;
  color: var(--ml-chalk);
  margin: 0;
  max-width: 26ch;
}

.page-about .prose p {
  font-size: 16px;
  line-height: 1.78;
  color: var(--ml-sage);
  margin: 0 0 14px;
}

.page-about .prose p:last-child {
  margin-bottom: 0;
}

.page-about .about-lead {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--ml-chalk);
  border-left: 2px solid var(--ml-cyan);
  padding-left: 14px;
  margin: 0 0 clamp(18px, 2.6vw, 28px);
}

/* ---------- split + note ---------- */
.page-about .about-split {
  display: grid;
  gap: clamp(16px, 2.6vw, 32px);
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-about .about-note {
  border: 1px solid var(--ml-line);
  border-radius: var(--ml-radius);
  background: var(--ml-panel);
  padding: 16px 16px 18px;
  box-shadow: var(--ml-shadow);
}

.page-about .about-note__k {
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ml-cyan);
  margin: 0 0 4px;
}

.page-about .about-note__v {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ml-sage);
  margin: 0 0 14px;
}

.page-about .about-note__v:last-of-type {
  margin-bottom: 0;
}

.page-about .about-note__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.page-about .about-note__links .btn {
  font-size: 13px;
  padding: 7px 12px;
}

/* ---------- region matrix ---------- */
.page-about .region-matrix {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--ml-line);
  border: 1px solid var(--ml-line);
  border-radius: var(--ml-radius);
  overflow: hidden;
}

.page-about .region-matrix__cell {
  background: var(--ml-ink);
  padding: 16px;
  display: grid;
  gap: 6px;
}

.page-about .region-matrix__idx {
  font-size: 11px;
  color: var(--ml-amber);
  letter-spacing: .12em;
}

.page-about .region-matrix__cell strong {
  font-family: var(--ml-font-display);
  font-size: 22px;
  letter-spacing: .04em;
  color: var(--ml-chalk);
  font-weight: 700;
}

.page-about .region-matrix__txt {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ml-sage);
}

/* ---------- lanes ---------- */
.page-about .lane-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .lane {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-top: 1px solid var(--ml-line);
}

.page-about .lane:last-child {
  border-bottom: 1px solid var(--ml-line);
}

.page-about .lane__idx {
  font-size: 13px;
  color: var(--ml-orange);
  letter-spacing: .1em;
  padding-top: 4px;
}

.page-about .lane__title {
  font-family: var(--ml-font-display);
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 700;
  color: var(--ml-chalk);
  margin: 0 0 8px;
  line-height: 1.24;
}

.page-about .lane__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ml-sage);
}

.page-about .lane__link {
  display: inline-block;
  font-size: 13px;
  color: var(--ml-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--ml-line);
  padding-bottom: 2px;
}

.page-about .lane__link:hover,
.page-about .lane__link:focus-visible {
  border-bottom-color: var(--ml-cyan);
  color: var(--ml-cyan-soft);
}

/* ---------- figure ---------- */
.page-about .about-figure {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
}

.page-about .about-figure img,
.page-about .flow-strip__figure img,
.page-about .version-layout__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--ml-radius);
  border: 1px solid var(--ml-line);
  background: var(--ml-panel);
}

.page-about figcaption.note {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--ml-sage);
}

/* ---------- team ---------- */
.page-about .team-grid {
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .team-card {
  border: 1px solid var(--ml-line);
  border-radius: var(--ml-radius);
  background: linear-gradient(180deg, var(--ml-panel), var(--ml-ink));
  padding: 16px 14px 18px;
  transition: border-color .24s ease, transform .24s ease;
}

.page-about .team-card:hover,
.page-about .team-card:focus-within,
.page-about .team-card:focus-visible {
  border-color: var(--ml-cyan);
  outline: none;
}

.page-about .team-card__num {
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1;
  color: var(--ml-orange);
  margin: 0 0 8px;
  font-weight: 600;
}

.page-about .team-card__name {
  font-family: var(--ml-font-display);
  font-size: 19px;
  letter-spacing: .03em;
  color: var(--ml-chalk);
  margin: 0 0 8px;
  font-weight: 700;
}

.page-about .team-card__duty {
  font-size: 13px;
  line-height: 1.72;
  color: var(--ml-sage);
  margin: 0;
}

/* ---------- flow strip ---------- */
.page-about .flow-strip {
  display: grid;
  gap: clamp(14px, 2.4vw, 26px);
  padding-top: clamp(16px, 2.4vw, 26px);
  border-top: 1px solid var(--ml-line);
}

.page-about .flow-strip__figure {
  margin: 0;
}

.page-about .flow-strip__title {
  font-family: var(--ml-font-display);
  font-size: clamp(19px, 2.4vw, 25px);
  color: var(--ml-chalk);
  margin: 0 0 12px;
  font-weight: 700;
}

.page-about .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-about .flow-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--ml-line);
  font-size: 14px;
  line-height: 1.72;
  color: var(--ml-sage);
}

.page-about .flow-list li:last-child {
  border-bottom: 0;
}

.page-about .flow-list .mono {
  color: var(--ml-cyan);
  font-size: 12px;
  padding-top: 3px;
}

/* ---------- versions ---------- */
.page-about .version-layout {
  display: grid;
  gap: clamp(18px, 3vw, 34px);
}

.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--ml-line), var(--ml-orange-deep));
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 clamp(20px, 3vw, 32px);
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ml-ink);
  border: 1px solid var(--ml-cyan);
  box-shadow: 0 0 0 3px rgba(59, 240, 208, .08);
}

.page-about .timeline__item--current::before {
  border-color: var(--ml-orange);
  box-shadow: 0 0 0 4px rgba(255, 138, 61, .16);
}

.page-about .timeline__tag {
  display: inline-block;
  font-size: 13px;
  color: var(--ml-cyan);
  letter-spacing: .12em;
  margin: 0 0 6px;
  border-bottom: 1px solid var(--ml-line);
  padding-bottom: 2px;
}

.page-about .timeline__item--current .timeline__tag {
  color: var(--ml-orange);
  border-bottom-color: var(--ml-orange-deep);
}

.page-about .timeline__title {
  font-family: var(--ml-font-display);
  font-size: clamp(19px, 2.6vw, 25px);
  color: var(--ml-chalk);
  margin: 0 0 8px;
  font-weight: 700;
  line-height: 1.24;
}

.page-about .timeline__item p {
  font-size: 15px;
  line-height: 1.78;
  color: var(--ml-sage);
  margin: 0 0 8px;
}

.page-about .timeline__note {
  font-size: 13px;
  color: var(--ml-amber);
  border-left: 2px solid var(--ml-orange-deep);
  padding-left: 10px;
}

.page-about .version-layout__figure {
  margin: 0;
}

/* ---------- sources ---------- */
.page-about .source-panel {
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-about .source-item {
  border: 1px solid var(--ml-line);
  border-radius: var(--ml-radius);
  background: var(--ml-panel);
  padding: 12px 14px;
}

.page-about .source-item summary {
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--ml-chalk);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

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

.page-about .source-item summary::after {
  content: "+";
  font-family: var(--ml-font-mono);
  color: var(--ml-cyan);
  font-size: 15px;
}

.page-about .source-item[open] summary::after {
  content: "–";
  color: var(--ml-orange);
}

.page-about .source-item summary:focus-visible {
  outline: 2px solid var(--ml-cyan);
  outline-offset: 3px;
}

.page-about .source-item p {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.74;
  color: var(--ml-sage);
}

/* ---------- contact ---------- */
.page-about .about-block--contact {
  border-top: 1px solid var(--ml-line);
  padding-top: clamp(22px, 3.4vw, 40px);
}

.page-about .contact-grid {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-about .contact-card {
  border-left: 2px solid var(--ml-cyan);
  background: var(--ml-panel);
  border-radius: 0 var(--ml-radius) var(--ml-radius) 0;
  padding: 14px 16px;
}

.page-about .contact-card__k {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--ml-cyan);
  margin: 0 0 6px;
  text-transform: uppercase;
}

.page-about .contact-card__v {
  font-family: var(--ml-font-mono);
  font-size: clamp(14px, 1.7vw, 17px);
  line-height: 1.5;
  color: var(--ml-chalk);
  margin: 0 0 8px;
  word-break: break-word;
}

.page-about .contact-card__note {
  font-size: 13px;
  line-height: 1.72;
  color: var(--ml-sage);
  margin: 0;
}

.page-about .contact-actions {
  display: grid;
  gap: 10px;
}

.page-about .contact-actions .btn {
  justify-self: start;
  font-size: 14px;
  padding: 9px 16px;
}

.page-about .contact-actions__meta {
  font-size: 12px;
  line-height: 1.7;
  color: var(--ml-sage);
  margin: 4px 0 0;
}

/* ---------- reveal ---------- */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .36s ease, transform .36s ease;
}

.page-about [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- breakpoints ---------- */
@media (min-width: 640px) {
  .page-about .mast-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .region-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .contact-card:nth-child(3) {
    grid-column: 1 / -1;
  }

  .page-about .contact-actions {
    grid-template-columns: auto auto;
    align-items: center;
    justify-content: start;
    column-gap: 12px;
  }

  .page-about .contact-actions__meta {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-split--reverse {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  }

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

  .page-about .lane {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 20px;
  }

  .page-about .lane__idx {
    font-size: 15px;
  }

  .page-about .flow-strip {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .version-layout {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .timeline {
    padding-left: 34px;
  }

  .page-about .timeline::before {
    left: 6px;
  }

  .page-about .timeline__item::before {
    left: -34px;
    width: 13px;
    height: 13px;
  }

  .page-about .about-mast .lede {
    max-width: 58ch;
  }

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

  .page-about .contact-card:nth-child(3) {
    grid-column: auto;
  }
}

@media (min-width: 1180px) {
  .page-about .about-block--wide {
    padding-left: clamp(0px, 2vw, 40px);
    border-left: 1px solid var(--ml-line);
  }

  .page-about .about-note {
    position: sticky;
    top: 88px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-about .team-card {
    transition: none;
  }
}
<<<END>>>