.page-about {
  --about-rail: 200px;
  --about-hair: 1px solid var(--grid-line);
  --about-muted: rgba(242, 246, 250, .76);
  --about-dim: rgba(242, 246, 250, .58);
  background: var(--ink-950);
  color: var(--mist);
  padding-bottom: clamp(40px, 6vw, 72px);
}

.page-about .about-crumb {
  padding-top: clamp(16px, 2.6vw, 28px);
}

.page-about .about-crumb .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  justify-content: flex-start;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--steel);
}

.page-about .about-crumb .breadcrumb__link {
  color: var(--steel);
  text-decoration: none;
}

.page-about .about-crumb .breadcrumb__link:hover,
.page-about .about-crumb .breadcrumb__link:focus-visible {
  color: var(--cyan);
}

.page-about .about-crumb .breadcrumb__link[aria-current="page"] {
  color: var(--signal);
}

/* ---------- hero ---------- */
.page-about .about-hero {
  padding: clamp(24px, 4vw, 52px) 0 clamp(30px, 4.5vw, 64px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(30px, 4.5vw, 56px);
  align-items: center;
}

.page-about .about-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-hero__eyebrow::before {
  content: "";
  width: 30px;
  height: 1px;
  background: var(--signal);
}

.page-about h1 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(31px, 6vw, 62px);
  line-height: 1.07;
  letter-spacing: -.005em;
  color: var(--mist);
  max-width: 20ch;
}

.page-about .about-hero__text {
  margin: 0 0 26px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-muted);
}

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

/* ---------- index panel visual ---------- */
.page-about .about-visual {
  position: relative;
  padding: 16px;
  border: var(--about-hair);
  background: linear-gradient(155deg, var(--panel-800) 0%, var(--ink-900) 72%);
  min-height: 250px;
}

.page-about .about-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(40, 66, 95, .5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(40, 66, 95, .5) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: .45;
  pointer-events: none;
}

.page-about .about-visual > * {
  position: relative;
  z-index: 1;
}

.page-about .about-visual__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: var(--about-hair);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--steel);
}

.page-about .about-visual__live {
  margin-left: auto;
  color: var(--cyan);
}

.page-about .about-visual__rows {
  list-style: none;
  margin: 0;
  padding: 6px 0 0;
}

.page-about .about-visual__rows li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 10px;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(40, 66, 95, .8);
  font-size: 12.5px;
  color: var(--about-dim);
}

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

.page-about .about-visual__code {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--signal);
}

.page-about .about-visual__led {
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 2px rgba(46, 211, 166, .18);
}

.page-about .about-visual__led--update {
  background: var(--amber);
  box-shadow: 0 0 0 2px rgba(255, 176, 32, .18);
}

.page-about .about-visual__led--down {
  background: var(--coral);
  box-shadow: 0 0 0 2px rgba(255, 92, 92, .18);
}

/* ---------- flow: toc + chapters ---------- */
.page-about .about-flow {
  padding-top: clamp(10px, 2vw, 24px);
}

.page-about .about-toc {
  margin-bottom: clamp(26px, 4vw, 40px);
  padding-top: 14px;
  border-top: var(--about-hair);
}

.page-about .about-toc__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-about .about-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: var(--about-hair);
}

.page-about .about-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-left: -1px;
  padding: 10px 0 10px 14px;
  border-left: 2px solid transparent;
  font-size: 13px;
  line-height: 1.4;
  color: var(--about-dim);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-toc__link span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--signal);
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus-visible {
  color: var(--mist);
  border-left-color: var(--cyan);
}

.page-about .about-toc__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- chapter shell ---------- */
.page-about .about-chapter {
  padding: clamp(28px, 4vw, 44px) 0;
  border-top: var(--about-hair);
  scroll-margin-top: 120px;
}

.page-about .about-chapter:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .about-chapter__num {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-about .about-chapter h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.16;
  color: var(--mist);
  max-width: 24ch;
}

.page-about .about-chapter p {
  margin: 0 0 16px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-muted);
}

/* ---------- scenes ---------- */
.page-about .about-scenes {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: 26px 0 26px;
  padding: 0;
  background: var(--grid-line);
  border: var(--about-hair);
}

.page-about .about-scene {
  background: var(--ink-900);
  padding: 18px 18px 20px;
}

.page-about .about-scene__tag {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-about .about-scene strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--mist);
}

.page-about .about-scene p {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--about-dim);
}

/* ---------- figures ---------- */
.page-about .about-figure {
  margin: 26px 0 0;
  border: var(--about-hair);
  background: var(--ink-900);
}

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

.page-about .about-figure .media-frame__caption {
  padding: 12px 16px;
  border-top: var(--about-hair);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .02em;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- three lines ---------- */
.page-about .about-lines {
  display: grid;
  gap: 1px;
  margin: 24px 0 0;
  background: var(--grid-line);
  border: var(--about-hair);
}

.page-about .about-line {
  background: var(--panel-800);
  padding: 22px 20px 24px;
  border-top: 2px solid var(--signal);
}

.page-about .about-line--version {
  border-top-color: var(--cyan);
}

.page-about .about-line--help {
  border-top-color: var(--warm);
}

.page-about .about-line__no {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--steel);
}

.page-about .about-line h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--mist);
}

.page-about .about-line p {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--about-dim);
}

.page-about .about-line__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .about-line__link::after {
  content: "→";
}

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

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

.page-about .about-timeline__item {
  position: relative;
  padding-left: 26px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 0;
  width: 1px;
  background: var(--grid-line);
}

.page-about .about-timeline__item:last-child::before {
  bottom: 18px;
}

.page-about .about-timeline__item::after {
  content: "";
  position: absolute;
  left: -3px;
  top: 10px;
  width: 7px;
  height: 7px;
  background: var(--signal);
}

.page-about .about-stage {
  padding-bottom: 18px;
}

.page-about .about-stage__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding: 2px 0 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-stage__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--signal);
}

.page-about .about-stage[open] .about-stage__summary::after {
  content: "−";
  color: var(--cyan);
}

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

.page-about .about-stage__name {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 700;
  color: var(--mist);
}

.page-about .about-stage__batch {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  color: var(--steel);
  border: 1px solid var(--grid-line);
  padding: 2px 7px;
}

.page-about .about-stage__body p {
  margin: 8px 0 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--about-muted);
}

/* ---------- team ---------- */
.page-about .about-team {
  display: grid;
  gap: 1px;
  margin: 24px 0 0;
  background: var(--grid-line);
  border: var(--about-hair);
}

.page-about .about-role {
  background: var(--ink-900);
  padding: 16px 18px;
}

.page-about .about-role__summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-about .about-role__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--signal);
}

.page-about .about-role__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--mist);
}

.page-about .about-role__more {
  margin-left: auto;
  width: 10px;
  height: 10px;
  position: relative;
  flex: none;
}

.page-about .about-role__more::before,
.page-about .about-role__more::after {
  content: "";
  position: absolute;
  background: var(--cyan);
}

.page-about .about-role__more::before {
  left: 0;
  top: 4px;
  width: 10px;
  height: 1px;
}

.page-about .about-role__more::after {
  left: 4px;
  top: 0;
  width: 1px;
  height: 10px;
  transition: opacity var(--dur) var(--ease);
}

.page-about .about-role[open] .about-role__more::after {
  opacity: 0;
}

.page-about .about-role__body {
  margin: 10px 0 2px;
  max-width: 58ch;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--about-dim);
}

/* ---------- coverage ---------- */
.page-about .about-facts {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: var(--about-hair);
}

.page-about .about-facts li {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: var(--about-hair);
}

.page-about .about-facts__k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-about .about-facts__v {
  font-size: 14px;
  line-height: 1.75;
  color: var(--about-muted);
}

.page-about .about-support {
  margin-top: clamp(26px, 4vw, 40px);
  padding: 22px 20px 24px;
  background: linear-gradient(200deg, rgba(77, 243, 211, .08) 0%, rgba(6, 21, 37, 0) 62%), var(--ink-900);
  border: var(--about-hair);
  border-left: 3px solid var(--cyan);
}

.page-about .about-support__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

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

.page-about .about-support__list li {
  display: grid;
  gap: 3px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(40, 66, 95, .9);
}

.page-about .about-support__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-support__label {
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--steel);
}

.page-about .about-support__value {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  word-break: break-word;
}

.page-about .about-support__value--mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
  color: var(--mist);
}

.page-about .about-next {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.5vw, 36px);
}

/* ---------- footnote ---------- */
.page-about .about-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding-top: 16px;
  border-top: var(--about-hair);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .03em;
  line-height: 1.7;
  color: var(--steel);
}

.page-about .about-note::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-about .about-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-facts li {
    grid-template-columns: 130px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-about .about-support__list li {
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 860px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: clamp(40px, 6vw, 84px);
  }

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

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

  .page-about .about-role {
    padding: 20px 18px 22px;
  }

  .page-about .about-role__summary {
    flex-wrap: wrap;
    row-gap: 6px;
  }
}

@media (min-width: 1080px) {
  .page-about .about-flow {
    display: grid;
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 76px);
    align-items: start;
  }

  .page-about .about-toc {
    position: sticky;
    top: 120px;
    margin-bottom: 0;
  }

  .page-about .about-chapter h2 {
    margin-bottom: 22px;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</result>