.page-about {
  --ab-gap: clamp(20px, 3vw, 34px);
  --ab-cut: 16px;
  --ab-soft: rgba(63, 242, 214, 0.06);
  background: var(--ink);
  color: var(--text);
  overflow-x: clip;
}

.page-about a:focus-visible,
.page-about summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

.page-about .breadcrumb {
  padding-block: clamp(18px, 3vw, 28px);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  padding-block: clamp(16px, 3vw, 40px) clamp(32px, 5vw, 64px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-about .about-hero__text h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 4.4vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 14px 0 0;
}

.page-about .about-hero__text .lede {
  margin-top: 18px;
  color: var(--text);
  line-height: 1.75;
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px 18px;
  margin: clamp(24px, 3.5vw, 34px) 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .about-num {
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.page-about .about-fact-lbl {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-about .about-hero__media {
  position: relative;
  margin: 0;
  padding: 10px;
  background: linear-gradient(150deg, var(--ink-2), var(--panel));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-about .about-hero__frame {
  position: relative;
  overflow: hidden;
}

.page-about .about-hero__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 14 / 9;
}

.page-about .about-hero__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, rgba(6, 20, 18, 0.24) 0 1px, transparent 1px 4px);
  pointer-events: none;
}

.page-about .about-hero__media figcaption {
  margin-top: 10px;
  padding-left: 2px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- Body layout ---------- */
.page-about .about-body {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  padding-block: clamp(28px, 4vw, 48px) clamp(48px, 7vw, 96px);
}

.page-about .about-index__label {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--gold);
  margin: 0 0 12px;
}

.page-about .about-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  border-left: 1px solid var(--line);
}

.page-about .about-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-about .about-index__list a .mono {
  font-size: 11.5px;
  color: var(--line);
  transition: color 180ms var(--ease);
}

.page-about .about-index__list a:hover,
.page-about .about-index__list a:focus-visible {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: var(--ab-soft);
}

.page-about .about-index__list a:hover .mono,
.page-about .about-index__list a:focus-visible .mono {
  color: var(--cyan);
}

.page-about .about-main {
  min-width: 0;
}

.page-about .about-chapter {
  padding-bottom: clamp(36px, 5vw, 60px);
  scroll-margin-top: 120px;
}

.page-about .about-chapter + .about-chapter,
.page-about .about-cta {
  border-top: 1px solid var(--line);
  padding-top: clamp(32px, 4.5vw, 54px);
}

.page-about .about-chapter__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 18px;
}

.page-about .about-chapter__no {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-about .about-chapter h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(23px, 3.2vw, 33px);
  line-height: 1.26;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0;
}

.page-about .about-chapter p {
  max-width: 68ch;
  line-height: 1.78;
  margin: 0 0 14px;
  color: var(--text);
}

.page-about .about-chapter h3 {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 0 0 8px;
}

/* ---------- Timeline band ---------- */
.page-about .tl-band {
  position: relative;
  margin: clamp(22px, 3vw, 34px) 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-about .tl-band__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  filter: saturate(0.7);
  pointer-events: none;
}

.page-about .tl {
  position: relative;
  list-style: none;
  margin: 0;
  padding: clamp(16px, 2.6vw, 26px);
  display: grid;
  gap: 0;
}

.page-about .tl__item {
  position: relative;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  padding-bottom: 16px;
}

.page-about .tl__item:last-child {
  padding-bottom: 4px;
}

.page-about .tl__dot {
  position: absolute;
  top: -4.5px;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-about .tl__node {
  display: block;
  text-decoration: none;
  color: inherit;
  padding-right: 8px;
}

.page-about .tl__year {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 6px;
}

.page-about .tl__title {
  display: block;
  font-family: var(--font-head);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--text);
  transition: color 180ms var(--ease);
}

.page-about .tl__note {
  display: block;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 200ms var(--ease), opacity 180ms var(--ease), margin-top 180ms var(--ease);
}

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

.page-about .tl__node:hover .tl__note,
.page-about .tl__node:focus-visible .tl__note {
  max-height: 7em;
  opacity: 1;
  margin-top: 8px;
}

/* ---------- Method ---------- */
.page-about .about-method {
  display: grid;
  gap: var(--ab-gap);
  margin-top: clamp(20px, 3vw, 30px);
}

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

.page-about .flow__step {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-about .flow__step:first-child {
  border-top-color: var(--cyan);
}

.page-about .flow__no {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-about .flow__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-notes {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-about .note-card {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  padding: 14px 16px;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-about .note-card:hover {
  border-color: var(--cyan);
  background: var(--panel);
}

.page-about .note-card summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.page-about .note-card summary::-webkit-details-marker {
  display: none;
}

.page-about .note-card summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--cyan);
  font-size: 16px;
  line-height: 1;
  flex: none;
}

.page-about .note-card[open] summary::after {
  content: "–";
}

.page-about .note-card p {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- Team ---------- */
.page-about .team-grid {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .team-card {
  background: var(--ink-2);
  border: 1px solid var(--line);
  padding: 18px 18px 20px;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-about .team-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-about .team-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .team-card--lead {
  background: linear-gradient(140deg, var(--panel), var(--ink-2) 70%);
  border-color: var(--line);
}

.page-about .team-card--lead h3 {
  margin-top: 12px;
  font-size: 19px;
}

.page-about .team-card--lead p {
  color: var(--text);
  max-width: 58ch;
}

.page-about .team-card__no {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin-bottom: 8px;
}

/* ---------- Coverage ---------- */
.page-about .cov-layout {
  display: grid;
  gap: var(--ab-gap);
  align-items: start;
  margin-top: clamp(16px, 2.5vw, 24px);
}

.page-about .cov-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: radial-gradient(circle at 50% 45%, rgba(18, 42, 44, 0.9), var(--ink-2) 72%);
  padding: 15px;
}

.page-about .cov-map {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .cov-figure figcaption {
  margin-top: 10px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .cov-band {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .cov-band li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  background: var(--ink-2);
}

.page-about .cov-band__num {
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.page-about .cov-band__lbl {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.03em;
}

/* ---------- Partners ---------- */
.page-about .partner-layout {
  display: grid;
  gap: var(--ab-gap);
  align-items: start;
  margin-top: clamp(14px, 2vw, 20px);
}

.page-about .partner-media {
  margin: 0;
  border: 1px solid var(--line);
  padding: 10px;
  background: var(--ink-2);
}

.page-about .partner-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-about .partner-media figcaption {
  margin-top: 10px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- Principles ---------- */
.page-about .principles {
  list-style: none;
  margin: clamp(20px, 3vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .principle {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 20px 4px 22px;
  background: var(--ink);
  transition: background 180ms var(--ease);
}

.page-about .principle:hover {
  background: var(--ink-2);
}

.page-about .principle__no {
  grid-row: span 2;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--rose);
  padding-top: 4px;
}

.page-about .principle h3 {
  margin: 0;
}

.page-about .principle p {
  grid-column: 2;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- CTA ---------- */
.page-about .about-cta {
  margin-top: clamp(36px, 5vw, 64px);
  padding: clamp(26px, 4vw, 46px);
  background: linear-gradient(135deg, var(--ink-2), var(--panel));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-about .about-cta h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 12px 0 0;
}

.page-about .about-cta p {
  max-width: 64ch;
  margin: 14px 0 0;
  line-height: 1.75;
  color: var(--text);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

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

  .page-about .team-card--lead {
    grid-column: span 2;
  }

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

  .page-about .cov-band li {
    flex-direction: column;
    gap: 8px;
  }
}

@media (min-width: 860px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-about .tl {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: clamp(14px, 2vw, 22px);
  }

  .page-about .tl__item {
    padding-bottom: 20px;
  }

  .page-about .about-method {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-about .cov-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-about .partner-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}

@media (min-width: 1000px) {
  .page-about .about-body {
    grid-template-columns: 210px minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: 118px;
  }

  .page-about .tl {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (min-width: 1120px) {
  .page-about .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .principle {
    grid-template-columns: 46px minmax(0, 0.4fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .principle p {
    grid-column: 3;
    margin-top: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team-card,
  .page-about .tl__note,
  .page-about .note-card,
  .page-about .principle {
    transition: none;
  }

  .page-about .team-card:hover {
    transform: none;
  }

  .page-about .tl__note {
    max-height: none;
    opacity: 1;
    margin-top: 8px;
  }
}
<<<END>>>