.page-about {
  --about-pad: clamp(52px, 8vw, 96px);
  --about-toc-w: 208px;
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

.page-about .about-hero {
  position: relative;
  padding: calc(var(--header-h) + 56px) 0 52px;
  overflow: hidden;
  background:
    radial-gradient(880px 460px at 84% 4%, rgba(255, 106, 43, .17), transparent 62%),
    radial-gradient(720px 420px at 4% 96%, rgba(43, 227, 200, .14), transparent 66%),
    var(--ink);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(38, 50, 95, .55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(38, 50, 95, .34) 1px, transparent 1px);
  background-size: 92px 92px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .8), transparent 82%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .8), transparent 82%);
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .about-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mute);
  margin-bottom: 28px;
}

.page-about .about-crumb a {
  color: var(--mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

.page-about .about-crumb__sep {
  color: var(--line);
}

.page-about .about-h1 {
  margin: 14px 0 0;
  font-size: clamp(34px, 8.4vw, 78px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.02em;
  transform: scaleX(.95);
  transform-origin: left center;
}

.page-about .about-lede {
  max-width: 38em;
  margin: 24px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mute);
}

.page-about .about-figures {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 40px 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-about .about-figures li {
  background: var(--ink-2);
  padding: 18px 16px 20px;
}

.page-about .about-fig-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 6.4vw, 40px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--amber);
  letter-spacing: -.01em;
}

.page-about .about-fig-cap {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mute);
  letter-spacing: .05em;
}

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

.page-about .about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  padding-bottom: 88px;
}

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

.page-about .about-chapter {
  padding-top: var(--about-pad);
}

.page-about .about-chapter__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  padding-bottom: 14px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-chapter__head .chapter-num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: .12em;
}

.page-about .about-chapter__head h2 {
  margin: 0;
  font-size: clamp(23px, 5.2vw, 36px);
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.22;
}

.page-about .about-chapter__lede {
  max-width: 40em;
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mute);
}

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

.page-about .about-card {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}

.page-about .about-card:hover {
  border-color: rgba(255, 106, 43, .55);
  transform: translateY(-2px);
}

.page-about .about-card__tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan);
  border: 1px solid rgba(43, 227, 200, .38);
  border-radius: 999px;
}

.page-about .about-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
}

.page-about .about-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

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

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(to bottom, var(--cyan), var(--orange) 62%, var(--line));
}

.page-about .tl-item {
  position: relative;
  padding: 0 0 32px 44px;
}

.page-about .tl-item:last-child {
  padding-bottom: 0;
}

.page-about .tl-dot {
  position: absolute;
  left: 8px;
  top: 10px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(43, 227, 200, .16);
  transition: box-shadow .3s var(--ease), background .3s var(--ease);
}

.page-about .tl-item--now .tl-dot {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 106, 43, .2);
}

.page-about .tl-item:hover .tl-dot {
  box-shadow: 0 0 0 9px rgba(43, 227, 200, .16);
}

.page-about .tl-item--now:hover .tl-dot {
  box-shadow: 0 0 0 9px rgba(255, 106, 43, .18);
}

.page-about .tl-year {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
}

.page-about .tl-idx {
  font-family: var(--font-mono);
  font-size: clamp(22px, 5vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--paper);
}

.page-about .tl-item--now .tl-idx {
  color: var(--orange);
}

.page-about .tl-stage {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mute);
}

.page-about .tl-title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  transition: color .2s var(--ease);
}

.page-about .tl-item:hover .tl-title {
  color: var(--orange);
}

.page-about .tl-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

.page-about .tl-extra {
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: rgba(154, 165, 196, .82);
}

.page-about .about-frame {
  margin: 0 0 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-2);
}

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

.page-about .about-frame .media-frame__cap {
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mute);
  border-top: 1px solid var(--line);
}

.page-about .about-bar {
  display: flex;
  gap: 5px;
  margin: 0;
  height: 58px;
}

.page-about .about-bar__seg {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 2px;
  min-width: 46px;
  padding: 8px 8px 10px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--ink);
  overflow: hidden;
  transition: transform .2s var(--ease), filter .2s var(--ease);
}

.page-about .about-bar__seg:hover,
.page-about .about-bar__seg:focus-visible {
  transform: translateY(-3px);
  filter: brightness(1.08);
}

.page-about .about-bar__seg--data {
  flex: 18 1 0;
  background: var(--orange);
}

.page-about .about-bar__seg--dev {
  flex: 16 1 0;
  background: var(--cyan);
}

.page-about .about-bar__seg--cs {
  flex: 8 1 0;
  background: var(--amber);
}

.page-about .about-bar__seg--cd {
  flex: 4 1 0;
  background: #6E7DB2;
  color: var(--paper);
}

.page-about .about-bar__label {
  display: none;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-about .about-bar__num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.1;
}

.page-about .about-bar__note {
  margin: 10px 0 24px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mute);
  letter-spacing: .04em;
}

.page-about .about-roles {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
}

.page-about .about-role {
  padding: 20px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .3s var(--ease), background .3s var(--ease);
}

.page-about .about-role:target {
  border-color: rgba(255, 106, 43, .6);
  border-left-color: var(--orange);
  background: #17204A;
}

.page-about .about-role__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 10px;
}

.page-about .about-role__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-role__name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .04em;
}

.page-about .about-role p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

.page-about .about-duty {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-duty__step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 18px 18px 20px;
  background: var(--ink-2);
}

.page-about .about-duty__time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--amber);
}

.page-about .about-duty__body h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
}

.page-about .about-duty__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

.page-about .about-eco {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

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

.page-about .about-eco__block {
  padding: 0 0 0 16px;
  border-left: 2px solid var(--line);
  margin-bottom: 20px;
}

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

.page-about .about-eco__block h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--cyan);
}

.page-about .about-eco__block p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

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

.page-about .about-honor {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .about-honor__item {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(150deg, rgba(43, 227, 200, .07), transparent 58%),
    var(--ink-2);
}

.page-about .about-honor__tag {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-about .about-honor__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-about .about-honor__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mute);
}

.page-about .about-cta {
  margin-top: var(--about-pad);
  padding: 34px 22px 36px;
  border: 1px solid rgba(255, 106, 43, .45);
  border-radius: var(--radius);
  background:
    radial-gradient(420px 240px at 92% 0%, rgba(255, 106, 43, .2), transparent 70%),
    var(--ink-2);
}

.page-about .about-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 5vw, 32px);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -.01em;
}

.page-about .about-cta p {
  margin: 0 0 24px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.page-about .about-cta__link {
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 227, 200, .45);
  padding-bottom: 2px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

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

.page-about .about-toc__title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--mute);
}

.page-about .about-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-about .about-toc__list li {
  margin: 0;
}

.page-about .about-toc__link {
  display: block;
  padding: 8px 0 8px 14px;
  margin-left: -1px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mute);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

.page-about .about-toc__link--cta {
  color: var(--cyan);
}

@media (min-width: 560px) {
  .page-about .about-bar {
    height: 64px;
  }

  .page-about .about-bar__label {
    display: block;
  }

  .page-about .about-bar__seg {
    padding: 8px 12px 12px;
  }

  .page-about .about-duty__step {
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 18px;
    padding: 20px 22px 22px;
  }

  .page-about .about-duty__time {
    padding-top: 2px;
  }

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

@media (min-width: 760px) {
  .page-about .about-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-figures li {
    padding: 22px 20px 24px;
  }

  .page-about .about-three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

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

  .page-about .about-eco {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

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

  .page-about .about-cta {
    padding: 44px 40px 46px;
  }

  .page-about .tl-item {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 24px;
    padding-left: 48px;
    padding-bottom: 36px;
  }

  .page-about .tl-year {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    margin-bottom: 0;
  }

  .page-about .tl-dot {
    left: 8px;
    top: 12px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: calc(var(--header-h) + 88px) 0 72px;
  }

  .page-about .about-hero__inner {
    padding-right: 56px;
  }

  .page-about .about-lede {
    font-size: 17px;
  }

  .page-about .about-vertical {
    display: block;
    position: absolute;
    right: 22px;
    bottom: 78px;
    writing-mode: vertical-rl;
    font-size: 11px;
    letter-spacing: .32em;
    color: var(--mute);
  }

  .page-about .about-layout {
    grid-template-columns: minmax(0, 1fr) var(--about-toc-w);
    gap: 56px;
    padding-bottom: 110px;
  }

  .page-about .about-main {
    grid-column: 1;
    grid-row: 1;
  }

  .page-about .about-toc {
    display: block;
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: calc(var(--header-h) + 32px);
    align-self: start;
    padding-top: 6px;
  }

  .page-about .about-toc__link {
    font-size: 12.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-card,
  .page-about .about-bar__seg,
  .page-about .tl-dot,
  .page-about .tl-title,
  .page-about .about-toc__link,
  .page-about .about-crumb a,
  .page-about .about-cta__link {
    transition: none;
  }

  .page-about .about-card:hover,
  .page-about .about-bar__seg:hover,
  .page-about .about-bar__seg:focus-visible {
    transform: none;
  }
}
<<<END>>>