.page-about {
  --about-measure: 68ch;
  --about-timeline-line: rgba(102, 115, 154, .45);
  padding-bottom: calc(var(--gutter) * 2);
}

.page-about .breadcrumb {
  padding-top: 20px;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: 28px 0 8px;
  background:
    radial-gradient(1100px 460px at 88% -10%, rgba(255, 90, 31, .16), transparent 62%),
    linear-gradient(180deg, var(--ink-900), var(--bg) 78%);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero__inner {
  display: grid;
  gap: 28px;
  padding-bottom: 44px;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: .96;
  font-size: clamp(38px, 7.4vw, 84px);
  margin: 10px 0 18px;
  color: var(--text);
  text-wrap: balance;
}

.page-about .about-hero__accent {
  display: inline-block;
  color: var(--amber-400);
  position: relative;
}

.page-about .about-hero__accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: .06em;
  height: 6px;
  background: linear-gradient(90deg, rgba(255, 90, 31, .85), rgba(54, 242, 216, .35));
  transform: skewX(-14deg);
}

.page-about .about-hero__lead {
  max-width: 62ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--text-dim);
  margin: 0;
}

.page-about .about-hero__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 26px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-meta {
  background: var(--bg-panel);
  padding: 14px 12px 16px;
}

.page-about .about-meta .data-label {
  display: block;
  color: var(--text-mute);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.page-about .about-meta__num {
  display: block;
  margin-top: 8px;
  font-family: var(--font-data);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan-400);
}

.page-about .about-meta__unit {
  font-size: .5em;
  margin-left: 2px;
  color: var(--text-dim);
}

.page-about .about-hero__media {
  align-self: start;
  transform: skewY(-1.2deg);
}

.page-about .about-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Layout: toc + article ---------- */
.page-about .about-layout {
  display: grid;
  gap: 32px;
  padding-top: 36px;
}

.page-about .about-toc {
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange-500);
  background: var(--bg-panel);
  border-radius: var(--radius);
  padding: 18px 16px;
}

.page-about .about-toc .toc__title {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--amber-400);
  margin: 0 0 12px;
}

.page-about .about-toc .toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: tocidx;
}

.page-about .about-toc .toc__link {
  display: block;
  padding: 8px 10px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
  border-radius: var(--radius);
  border-left: 2px solid transparent;
  transition: color .18s var(--ease), background-color .18s var(--ease), border-color .18s var(--ease);
}

.page-about .about-toc .toc__link:hover,
.page-about .about-toc .toc__link:focus-visible {
  color: var(--cream-100);
  background: rgba(54, 242, 216, .08);
  border-left-color: var(--cyan-400);
  outline: none;
}

.page-about .about-toc .toc__link[aria-current="true"],
.page-about .about-toc .toc__link.is-active {
  color: var(--cyan-400);
  background: rgba(54, 242, 216, .1);
  border-left-color: var(--cyan-400);
  font-weight: 700;
}

/* ---------- Article ---------- */
.page-about .about-article {
  min-width: 0;
}

.page-about .about-block {
  padding-top: 4px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-about .about-block + .about-block {
  margin-top: 8px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.page-about .about-block__head {
  margin-bottom: 18px;
}

.page-about .about-block__head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.06;
  font-size: clamp(26px, 3.6vw, 40px);
  margin: 8px 0 0;
  color: var(--text);
}

.page-about .about-article p {
  max-width: var(--about-measure);
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--text-dim);
  margin: 0 0 16px;
}

.page-about .about-article p strong {
  color: var(--cream-100);
}

.page-about .about-article .note {
  max-width: var(--about-measure);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-mute);
  border-left: 2px solid var(--amber-400);
  padding: 2px 0 2px 14px;
  margin: 22px 0;
}

.page-about .about-linkline {
  font-size: 15px;
  color: var(--text-mute);
  margin-top: 20px;
}

.page-about .about-linkline a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(54, 242, 216, .4);
  padding-bottom: 1px;
}

.page-about .about-linkline a:hover,
.page-about .about-linkline a:focus-visible {
  color: var(--amber-400);
  border-bottom-color: var(--amber-400);
  outline: none;
}

.page-about .about-block__figure {
  margin: 26px 0;
}

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

/* ---------- Timeline ---------- */
.page-about .about-timeline {
  position: relative;
  display: grid;
  gap: 12px;
  margin: 30px 0 8px;
  padding-left: 24px;
}

.page-about .about-timeline__rail {
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--orange-500), var(--cyan-400) 65%, rgba(102, 115, 154, .3));
}

.page-about .about-timeline__node {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  transition: border-color .2s var(--ease), transform .2s var(--ease), background-color .2s var(--ease);
}

.page-about .about-timeline__node::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 20px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink-950);
  border: 2px solid var(--slate-500);
}

.page-about .about-timeline__node:hover,
.page-about .about-timeline__node:focus-visible {
  border-color: var(--line-strong);
  background: var(--bg-raise);
  transform: translateX(3px);
  outline: none;
}

.page-about .about-timeline__node:hover::before,
.page-about .about-timeline__node:focus-visible::before {
  border-color: var(--cyan-400);
  background: var(--cyan-400);
}

.page-about .about-timeline__node--now {
  border-color: rgba(255, 90, 31, .55);
}

.page-about .about-timeline__node--now::before {
  border-color: var(--orange-500);
  background: var(--orange-500);
  box-shadow: 0 0 0 4px rgba(255, 90, 31, .16);
}

.page-about .about-timeline__v {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--amber-400);
}

.page-about .about-timeline__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: .01em;
  color: var(--cream-100);
  margin: 4px 0 6px;
  max-width: none;
}

.page-about .about-timeline__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-mute);
  max-width: 46ch;
}

.page-about .about-timeline__node:hover .about-timeline__desc,
.page-about .about-timeline__node:focus-visible .about-timeline__desc {
  color: var(--text-dim);
}

/* ---------- Roles ---------- */
.page-about .about-roles {
  display: grid;
  gap: 12px;
  margin: 26px 0 22px;
}

.page-about .about-role {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan-400);
  border-radius: var(--radius);
  padding: 16px 16px 18px;
}

.page-about .about-role:nth-child(2) {
  border-top-color: var(--orange-500);
}

.page-about .about-role:nth-child(3) {
  border-top-color: var(--amber-400);
}

.page-about .about-role__num {
  font-family: var(--font-data);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--cream-100);
  margin: 0 0 10px;
  max-width: none;
}

.page-about .about-role h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--amber-400);
  margin: 0 0 8px;
}

.page-about .about-role p:not(.about-role__num) {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-mute);
  margin: 0;
  max-width: none;
}

/* ---------- Steps ---------- */
.page-about .about-steps {
  list-style: none;
  counter-reset: step;
  margin: 26px 0 6px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-step {
  position: relative;
  padding: 14px 16px 16px 16px;
  background: var(--ink-900);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-about .about-step__idx {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--ink-950);
  background: var(--cyan-400);
  padding: 3px 8px;
  border-radius: 2px;
}

.page-about .about-step:nth-child(2) .about-step__idx {
  background: var(--amber-400);
}

.page-about .about-step:nth-child(3) .about-step__idx {
  background: var(--orange-500);
  color: var(--cream-100);
}

.page-about .about-step h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  color: var(--cream-100);
  margin: 10px 0 6px;
}

.page-about .about-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-mute);
  max-width: 52ch;
}

/* ---------- Paper block ---------- */
.page-about .about-block--paper {
  background: var(--brown-950);
  border: 1px solid rgba(216, 198, 164, .18);
  border-radius: var(--radius);
  padding: 26px 20px 24px;
  margin-top: 34px;
}

.page-about .about-block--paper + .about-block {
  border-top: 0;
}

.page-about .about-block--paper .about-block__head h2 {
  color: var(--cream-100);
}

.page-about .about-block--paper .data-label {
  color: var(--amber-400);
}

.page-about .about-block--paper p {
  color: var(--cream-300);
}

.page-about .about-block--paper .about-linkline a {
  color: var(--amber-400);
  border-bottom-color: rgba(247, 178, 59, .5);
}

.page-about .about-block--paper .about-linkline a:hover,
.page-about .about-block--paper .about-linkline a:focus-visible {
  color: var(--cream-100);
  border-bottom-color: var(--cream-100);
}

/* ---------- Stats ---------- */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 22px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-stat {
  background: var(--bg-panel);
  padding: 16px 14px 18px;
}

.page-about .about-stat__num {
  font-family: var(--font-data);
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan-400);
  margin: 0 0 8px;
  max-width: none;
}

.page-about .about-stat:nth-child(2) .about-stat__num {
  color: var(--amber-400);
}

.page-about .about-stat:nth-child(4) .about-stat__num {
  color: var(--orange-500);
}

.page-about .about-stat__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-mute);
  margin: 0;
  max-width: none;
}

/* ---------- CTA ---------- */
.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-about .about-cta .btn {
  flex: 0 1 auto;
}

/* ---------- Responsive ---------- */
@media (min-width: 720px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 40px;
  }

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

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

  .page-about .about-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding-left: 0;
    gap: 14px;
  }

  .page-about .about-timeline__rail {
    display: none;
  }

  .page-about .about-timeline__node::before {
    left: 16px;
    top: -19px;
  }

  .page-about .about-timeline__node {
    padding-top: 24px;
  }

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

@media (min-width: 1024px) {
  .page-about .about-layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: 48px;
    padding-top: 48px;
    align-items: start;
  }

  .page-about .about-toc {
    position: sticky;
    top: calc(var(--header-h) + 18px);
    padding: 20px 18px;
  }

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

  .page-about .about-block__head h2 {
    max-width: 24ch;
  }

  .page-about .about-hero__inner {
    gap: 54px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__node,
  .page-about .about-toc .toc__link {
    transition: none;
  }

  .page-about .about-timeline__node:hover,
  .page-about .about-timeline__node:focus-visible {
    transform: none;
  }
}
</｜｜DSML｜｜ parameter>
</result>