.page-about {
  --about-toc: 200px;
  --about-gap: clamp(16px, 2.6vw, 30px);
  padding-bottom: clamp(48px, 7vw, 110px);
  overflow-x: clip;
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 18px 0 0;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-about .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.page-about .breadcrumb a:hover {
  color: var(--cyan);
}

.page-about .breadcrumb__sep {
  color: rgba(142, 166, 194, 0.5);
}

/* ---------- hero ---------- */
.page-about .about-hero {
  display: grid;
  gap: var(--about-gap);
  padding: clamp(26px, 4vw, 52px) 0 clamp(22px, 3.4vw, 40px);
}

.page-about .about-hero__main h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 14px 0 18px;
  color: var(--white);
}

.page-about .about-hero__main .lead {
  max-width: 46ch;
  color: var(--muted);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-about .about-hero__side {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px 18px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--line-cyan);
}

.page-about .about-hero__rotate {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.26em;
  color: rgba(27, 231, 216, 0.75);
  padding-top: 4px;
}

.page-about .about-facts {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-about .about-facts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

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

.page-about .about-facts dt {
  font-size: 13px;
  color: var(--muted);
}

.page-about .about-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--white);
  letter-spacing: 0.02em;
}

/* ---------- banner ---------- */
.page-about .about-banner {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-about .about-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 62%;
}

/* ---------- .page-about grid ---------- */
.page-about .about-body {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(34px, 5vw, 64px);
}

.page-about .about-toc {
  margin: 0;
}

.page-about .about-toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  color: var(--muted);
}

.page-about .about-toc ol {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-toc ol::-webkit-scrollbar {
  display: none;
}

.page-about .about-toc li {
  flex: 0 0 auto;
}

.page-about .about-toc a {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-about .about-toc a .mono {
  font-size: 10.5px;
  color: var(--cyan);
}

.page-about .about-toc a:hover {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .about-toc a:hover .mono {
  color: var(--ink);
}

/* ---------- chapters ---------- */
.page-about .about-ch {
  padding: clamp(26px, 4vw, 46px) 0 clamp(30px, 4.6vw, 58px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 28px;
}

.page-about .about-ch p {
  max-width: 66ch;
  color: var(--muted);
  margin: 0 0 14px;
}

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

.page-about .about-ch a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(27, 231, 216, 0.35);
}

.page-about .about-ch a:hover {
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-about .about-ch__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: clamp(14px, 2.6vw, 28px);
  align-items: start;
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-about .about-ch__num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: clamp(34px, 6.6vw, 62px);
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 1px rgba(27, 231, 216, 0.55);
}

.page-about .about-ch__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 3.6vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0;
}

.page-about .about-ch__note {
  grid-column: 2;
  margin: 9px 0 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: rgba(142, 166, 194, 0.72);
}

/* ---------- stats ---------- */
.page-about .about-stats {
  display: grid;
  gap: 4px;
  margin-top: clamp(20px, 3vw, 30px);
  padding-top: 6px;
}

.page-about .about-stats__item {
  padding: 12px 0 12px 16px;
  border-left: 2px solid var(--line-cyan);
}

.page-about .about-stats__num {
  display: block;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.1;
  color: var(--white);
}

.page-about .about-stats__num em {
  font-style: normal;
  font-size: 0.46em;
  color: var(--cyan);
  margin-left: 4px;
  letter-spacing: 0.04em;
}

.page-about .about-stats__label {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ---------- audience cards ---------- */
.page-about .about-aud {
  display: grid;
  gap: 14px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-about .about-aud__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.8vw, 28px);
  border-radius: var(--radius);
}

.page-about .about-aud__card:first-child {
  border-left: 3px solid var(--orange);
  background-image: linear-gradient(160deg, rgba(255, 122, 26, 0.08), rgba(15, 35, 66, 0) 62%);
}

.page-about .about-aud__card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 23px);
  line-height: 1.3;
  color: var(--white);
}

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

.page-about .about-aud__list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .about-aud__list li {
  position: relative;
  padding-left: 16px;
}

.page-about .about-aud__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

/* ---------- data panel ---------- */
.page-about .about-panel {
  margin: clamp(20px, 3vw, 32px) 0;
  padding: clamp(18px, 3.2vw, 34px);
  border-radius: var(--radius);
  border: 1px solid var(--line-cyan);
  background:
    radial-gradient(130% 150% at 0% 0%, rgba(47, 183, 255, 0.22), rgba(8, 20, 38, 0) 62%),
    linear-gradient(158deg, rgba(27, 231, 216, 0.1), rgba(8, 20, 38, 0) 72%);
}

.page-about .about-panel__k {
  margin: 0 0 16px;
  font-size: 10.5px;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

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

.page-about .about-panel__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 0 0;
  border-top: 1px solid rgba(27, 231, 216, 0.3);
}

.page-about .about-panel__cell span {
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1;
  color: var(--white);
}

.page-about .about-panel__cell small {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- team ---------- */
.page-about .about-team {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  align-items: start;
}

.page-about .about-team .media {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-about .about-team__txt p {
  margin-top: 0;
}

.page-about .about-roles {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
}

.page-about .about-roles li {
  display: grid;
  gap: 5px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

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

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

.page-about .about-roles__v {
  font-size: 14px;
  line-height: 1.68;
  color: var(--muted);
}

/* ---------- timeline ---------- */
.page-about .about-ch--tl {
  position: relative;
  isolation: isolate;
}

.page-about .about-ch__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  border-radius: var(--radius);
  opacity: 0.2;
  pointer-events: none;
}

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

.page-about .about-tl {
  list-style: none;
  margin: clamp(18px, 3vw, 30px) 0 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: clamp(14px, 2.4vw, 24px);
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(27, 231, 216, 0));
}

.page-about .about-tl__item {
  position: relative;
  padding: 2px 0 2px 30px;
}

.page-about .about-tl__item::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 12px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--cyan);
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-tl__item:hover::before {
  background: var(--orange);
  border-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 122, 26, 0.16);
}

.page-about .about-tl__year {
  display: block;
  font-size: clamp(17px, 2.1vw, 23px);
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-about .about-tl__item h3 {
  margin: 5px 0 6px;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.9vw, 20px);
  line-height: 1.34;
  color: var(--white);
}

.page-about .about-tl__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 56ch;
}

/* ---------- quote ---------- */
.page-about .about-quote {
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: clamp(18px, 3vw, 30px);
  border-radius: var(--radius);
  border-left: 3px solid var(--cyan);
}

.page-about .about-quote p {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 23px);
  line-height: 1.55;
  color: var(--white);
  max-width: 40ch;
}

.page-about .about-quote span {
  font-size: 10.5px;
  letter-spacing: 0.24em;
  color: var(--muted);
}

/* ---------- principles + cta ---------- */
.page-about .about-principles {
  display: grid;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-about .about-principles__item {
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
}

.page-about .about-principles__item .mono {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-about .about-principles__item h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 21px);
  color: var(--white);
}

.page-about .about-principles__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-about .about-cta {
  margin-top: clamp(26px, 4vw, 44px);
  padding: clamp(20px, 3.4vw, 36px);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 122, 26, 0.32);
  background-image: linear-gradient(150deg, rgba(255, 122, 26, 0.1), rgba(8, 20, 38, 0) 66%);
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-about .about-cta__txt h3 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.2;
  color: var(--white);
}

.page-about .about-cta__txt p {
  margin: 0;
  max-width: 52ch;
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

@media (min-width: 560px) {
  .page-about .about-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

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

  .page-about .about-aud__card:first-child {
    grid-column: 1 / -1;
  }

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

  .page-about .about-principles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 880px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-about .about-hero__side {
    padding: 22px 22px 16px;
  }

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

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

  .page-about .about-aud__card:first-child {
    grid-column: auto;
    grid-row: span 2;
  }

  .page-about .about-cta {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: center;
  }

  .page-about .about-cta__links {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (min-width: 1024px) {
  .page-about .about-body {
    grid-template-columns: var(--about-toc) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 76px);
    align-items: start;
  }

  .page-about .about-toc {
    position: sticky;
    top: 34px;
  }

  .page-about .about-toc__title {
    margin-bottom: 14px;
  }

  .page-about .about-toc ol {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-toc a {
    border: 0;
    border-left: 1px solid var(--line);
    border-radius: 0;
    padding: 9px 0 9px 14px;
    font-size: 13.5px;
    line-height: 1.45;
    white-space: normal;
  }

  .page-about .about-toc a:hover {
    background: transparent;
    color: var(--white);
    border-left-color: var(--cyan);
  }

  .page-about .about-toc a:hover .mono {
    color: var(--cyan);
  }

  .page-about .about-ch {
    padding-left: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-toc a,
  .page-about .about-tl__item::before {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>