.page-about {
  --about-index-w: 172px;
  --about-node: 9px;
}

.page-about .about-hero {
  padding: clamp(26px, 5vw, 64px) 0 clamp(22px, 4vw, 36px);
  border-bottom: 1px solid var(--line-mid);
}

.page-about .about-hero h1 {
  margin: 0.16em 0 0.36em;
  max-width: 13ch;
  font-size: clamp(34px, 6.6vw, 82px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .about-hero__lede {
  max-width: 58ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
}

.page-about .about-stats {
  list-style: none;
  margin: clamp(22px, 3.6vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 0;
  border-top: 1px solid var(--line-strong);
  padding-top: 18px;
}

.page-about .about-stats li {
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.page-about .about-stats li:first-child,
.page-about .about-stats li:nth-child(3) {
  padding-left: 0;
  border-left: 0;
}

.page-about .about-stats b {
  display: block;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 4.4vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--green);
}

.page-about .about-stats span {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-2);
}

.page-about .about-body {
  padding-top: clamp(20px, 3.4vw, 44px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-about .about-index {
  margin-bottom: 26px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.page-about .about-index ol {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

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

.page-about .about-index a {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 20px 10px 0;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  color: var(--ink-2);
  transition: color 160ms var(--ease);
}

.page-about .about-index a::before {
  content: "";
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  background: var(--line-mid);
  transition: background 160ms var(--ease);
}

.page-about .about-index a:hover,
.page-about .about-index a:focus-visible {
  color: var(--orange-deep);
}

.page-about .about-index a.is-current {
  color: var(--orange-deep);
  font-weight: 700;
}

.page-about .about-index a.is-current::before {
  background: var(--orange);
}

.page-about .about-sec {
  position: relative;
  border-top: 1px solid var(--line);
  padding-top: clamp(28px, 4.4vw, 48px);
  margin-top: clamp(28px, 4.4vw, 48px);
}

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

.page-about .about-sec h2 {
  margin: 0 0 14px;
  max-width: 22ch;
  font-size: var(--fs-h2);
  font-weight: 800;
  line-height: 1.18;
  color: var(--ink);
}

.page-about .about-sec h3 {
  margin: 0 0 4px;
  font-size: var(--fs-h3);
  font-weight: 800;
  line-height: 1.3;
  color: var(--ink);
}

.page-about .about-sec p {
  max-width: 64ch;
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
}

.page-about .about-roles {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-about .about-roles li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  grid-template-areas:
    "no name"
    "desc desc";
  gap: 4px 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-roles__no {
  grid-area: no;
  padding-top: 4px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--orange-deep);
}

.page-about .about-roles__name {
  grid-area: name;
  font-size: var(--fs-h3);
  font-weight: 800;
  line-height: 1.3;
  color: var(--ink);
}

.page-about .about-roles__desc {
  grid-area: desc;
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-2);
}

.page-about .about-figure {
  margin: 22px 0 0;
  border: 1px solid var(--line);
  background: var(--paper-2);
}

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

.page-about .about-figure figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.5;
  color: var(--ink-2);
}

.page-about .about-timeline {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-about .about-timeline li {
  position: relative;
  padding: 0 0 26px 24px;
  border-left: 1px solid var(--line-mid);
}

.page-about .about-timeline li:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-about .about-timeline li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 7px;
  width: var(--about-node);
  height: var(--about-node);
  background: var(--green);
}

.page-about .about-timeline li:last-child::before {
  background: var(--orange);
}

.page-about .about-timeline__year {
  display: block;
  margin-bottom: 2px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--green);
}

.page-about .about-timeline p {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.72;
}

.page-about .about-levels {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-about .about-levels li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-levels .tag {
  justify-self: start;
}

.page-about .about-levels p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-2);
}

.page-about .about-map {
  display: none;
  color: var(--line-mid);
}

.page-about .about-details {
  margin-top: 18px;
  border-top: 1px solid var(--line-mid);
  border-bottom: 1px solid var(--line-mid);
}

.page-about .about-details summary {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 12px 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-details summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1;
  color: var(--orange-deep);
}

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

.page-about .about-details ul {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-about .about-details li {
  position: relative;
  padding-left: 15px;
  margin-bottom: 7px;
  font-size: 15px;
  line-height: 1.68;
  color: var(--ink-2);
}

.page-about .about-details li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.64em;
  width: 5px;
  height: 5px;
  background: var(--orange);
}

.page-about .about-week {
  list-style: none;
  margin: 20px 0 22px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line-strong);
}

.page-about .about-week li {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-week__day {
  display: block;
  margin-bottom: 3px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--blue);
}

.page-about .about-week p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-about .about-cta {
  margin: 22px 0 0;
  padding: clamp(22px, 3.6vw, 36px);
  background: var(--green);
  color: var(--paper);
  box-shadow: var(--shadow-float);
}

.page-about .about-cta__line {
  max-width: 34ch;
  margin: 0 0 20px;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--paper);
}

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

.page-about .about-cta__actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.page-about .about-cta__actions .btn--ghost {
  color: var(--paper);
  border-color: var(--line-paper);
}

.page-about .about-cta__note {
  max-width: 60ch;
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-paper);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: rgba(244, 239, 227, 0.78);
  word-break: break-word;
}

.page-about .about-links {
  max-width: 64ch;
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-about .about-links a {
  color: var(--orange-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--line-mid);
}

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

.page-about .about-totop {
  margin: 34px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-about .about-totop a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  text-decoration: none;
}

.page-about .about-totop a:hover,
.page-about .about-totop a:focus-visible {
  color: var(--orange-deep);
}

@media (min-width: 640px) {
  .page-about .about-levels li {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .page-about .about-week {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
  }

  .page-about .about-week li:nth-last-child(2),
  .page-about .about-week li:last-child {
    border-bottom: 1px solid var(--line);
  }
}

@media (min-width: 900px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-stats li:nth-child(3) {
    padding-left: 20px;
    border-left: 1px solid var(--line);
  }

  .page-about .about-stats li {
    padding-left: 20px;
  }

  .page-about .about-body {
    display: grid;
    grid-template-columns: var(--about-index-w) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 68px);
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--strip-h) + 88px);
    align-self: start;
    margin-bottom: 0;
    border-bottom: 0;
  }

  .page-about .about-index ol {
    flex-direction: column;
    overflow: visible;
  }

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

  .page-about .about-index li:first-child {
    border-top: 0;
  }

  .page-about .about-index a {
    width: 100%;
    padding: 14px 0;
    font-size: 20px;
  }

  .page-about .about-map {
    display: block;
    position: absolute;
    top: 40px;
    right: 0;
    width: 176px;
    height: auto;
    opacity: 0.85;
    pointer-events: none;
  }

  .page-about .about-sec--eco h2,
  .page-about .about-sec--eco > p {
    max-width: 40ch;
  }
}

@media (min-width: 1080px) {
  .page-about .about-roles li {
    grid-template-columns: 44px 112px minmax(0, 1fr);
    grid-template-areas: "no name desc";
    gap: 0 20px;
    align-items: baseline;
  }

  .page-about .about-roles__no {
    padding-top: 0;
  }

  .page-about .about-roles-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: clamp(24px, 3vw, 40px);
    align-items: start;
    margin-top: 22px;
  }

  .page-about .about-roles-wrap .about-roles {
    margin-top: 0;
  }

  .page-about .about-roles-wrap .about-figure {
    margin-top: 0;
  }
}

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