.page-about {
  --about-gap: clamp(1rem, 2.4vw, 1.6rem);
  --about-pad: clamp(2.4rem, 6vw, 4.4rem);
  --about-line-paper: rgba(10, 15, 20, 0.14);
  --about-line-paper-soft: rgba(10, 15, 20, 0.08);
}

.page-about .about-top {
  padding: 1.1rem 0 0.3rem;
}

.page-about .about-hero {
  padding: clamp(1.2rem, 4vw, 2.4rem) 0 var(--about-pad);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero__grid {
  display: grid;
  gap: var(--about-gap);
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(1.8rem, 4vw, 3.4rem);
  }
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 6vw, 4.3rem);
  line-height: 1.02;
  letter-spacing: 0.01em;
  margin: 0.7rem 0 0;
  color: var(--fg);
  max-width: 17ch;
}

.page-about .about-hero .lede {
  margin-top: 1.05rem;
  color: var(--fg-dim);
  max-width: 54ch;
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.4rem;
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0.85rem 0 0;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-about .about-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.page-about .about-hero__meta b {
  font-weight: 600;
  color: var(--accent-soft);
}

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

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--line-strong);
  box-shadow: 12px 12px 0 -2px var(--stack-b);
}

.page-about .about-hero__figure figcaption {
  margin-top: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--fg-dim);
}

.page-about .about-chapters {
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}

.page-about .about-chapters__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  margin: 0;
  padding: 0.85rem 0;
}

.page-about .about-chapters__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.42rem 0.7rem;
  border: 1px solid var(--line);
  color: var(--fg-dim);
  text-decoration: none;
  font-size: 0.82rem;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-chapters__link:hover,
.page-about .about-chapters__link:focus-visible {
  color: var(--fg);
  border-color: var(--line-strong);
  background: rgba(27, 74, 107, 0.45);
  outline: none;
}

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

.page-about .about-chapters__link[aria-current="true"] {
  color: var(--on-accent);
  background: var(--signal);
  border-color: var(--signal);
}

.page-about .about-chapters__no {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  opacity: 0.85;
}

.page-about .about-section {
  padding: var(--about-pad) 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-section--paper {
  background: var(--paper);
  color: var(--ink);
  border-bottom-color: var(--about-line-paper);
}

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

.page-about .about-section__head {
  max-width: 62ch;
  margin-bottom: clamp(1.4rem, 3vw, 2.2rem);
}

.page-about .about-section__head .lede {
  margin-top: 0.9rem;
}

.page-about h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 4.2vw, 2.85rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  margin: 0.5rem 0 0;
}

.page-about h3 {
  font-family: var(--font-body);
  font-size: 1.01rem;
  font-weight: 700;
  line-height: 1.5;
  margin: 0.55rem 0 0.4rem;
}

.page-about .about-no {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  color: var(--signal);
}

.page-about .about-no::after {
  content: "";
  width: 2.2rem;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.page-about .about-split {
  display: grid;
  gap: var(--about-gap);
}

@media (min-width: 900px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: start;
    gap: clamp(1.8rem, 3.4vw, 3rem);
  }
}

.page-about .about-note {
  border-top: 2px solid var(--signal);
  padding-top: 0.9rem;
}

.page-about .about-note__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-about .about-note__text {
  margin: 0.65rem 0 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--fg-dim);
}

.page-about .about-note__big {
  display: block;
  margin-top: 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.6rem;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--accent-soft);
}

.page-about .about-steps {
  list-style: none;
  margin: 1.3rem 0 0;
  padding: 0 0 0 1.1rem;
  border-left: 2px solid var(--line-strong);
}

.page-about .about-steps li {
  position: relative;
  padding: 0.45rem 0;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--fg-dim);
}

.page-about .about-steps li::before {
  content: "";
  position: absolute;
  left: -1.42rem;
  top: 1.05rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal);
}

.page-about .about-steps b {
  color: var(--fg);
  font-weight: 600;
}

.page-about .about-paths {
  display: grid;
  gap: 1px;
  background: var(--about-line-paper);
  border: 1px solid var(--about-line-paper);
}

@media (min-width: 620px) {
  .page-about .about-paths {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .about-path {
  background: rgba(255, 255, 255, 0.68);
  padding: 1.1rem 1.15rem 1.3rem;
}

.page-about .about-path__tag {
  display: inline-block;
  margin: 0;
  padding: 0.16rem 0.5rem;
  background: var(--signal);
  color: var(--on-accent);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
}

.page-about .about-path p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(10, 15, 20, 0.76);
}

.page-about .about-paths__link {
  margin: 1.3rem 0 0;
  font-size: 0.92rem;
  color: rgba(10, 15, 20, 0.72);
}

.page-about .about-section--paper a {
  color: var(--signal);
  text-decoration-color: rgba(255, 107, 53, 0.45);
  text-underline-offset: 0.18em;
}

.page-about .about-figure-wide {
  margin: 0 0 clamp(1.4rem, 3vw, 2rem);
}

.page-about .about-figure-wide img,
.page-about .about-sidefigure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--line-strong);
}

.page-about .about-figure-wide figcaption,
.page-about .about-sidefigure figcaption {
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  line-height: 1.7;
  color: var(--fg-dim);
}

.page-about .about-timeline {
  position: relative;
  display: grid;
  gap: 0.6rem;
  padding-left: 1.35rem;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 0.6rem;
  bottom: 0.6rem;
  width: 2px;
  background: linear-gradient(180deg, var(--signal), rgba(27, 74, 107, 0.55));
}

.page-about .about-tl {
  position: relative;
  border: 1px solid var(--line);
  background: var(--bg-2);
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: -1.35rem;
  top: 1.05rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--steel);
  box-sizing: border-box;
}

.page-about .about-tl[open]::before {
  background: var(--signal);
  border-color: var(--signal);
}

.page-about .about-tl__sum {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  cursor: pointer;
  list-style: none;
}

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

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

.page-about .about-tl__year {
  font-family: var(--font-mono);
  font-size: 0.77rem;
  letter-spacing: 0.1em;
  color: var(--accent-soft);
}

.page-about .about-tl__title {
  flex: 1;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--fg);
}

.page-about .about-tl__sum::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--mist);
}

.page-about .about-tl[open] .about-tl__sum::after {
  content: "–";
  color: var(--signal);
}

.page-about .about-tl__body {
  padding: 0.75rem 1rem 1rem;
  margin-top: 0.15rem;
  border-top: 1px dashed var(--line);
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--fg-dim);
}

.page-about .about-tl__body p {
  margin: 0;
}

.page-about .about-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 1.5rem;
}

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

.page-about .about-band__cell {
  background: var(--bg);
  padding: 0.9rem 1rem 1rem;
}

.page-about .about-band__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.95rem;
  line-height: 1;
  color: var(--fg);
}

.page-about .about-band__num em {
  font-style: normal;
  font-size: 0.78rem;
  margin-left: 0.16rem;
  color: var(--accent-soft);
}

.page-about .about-band__label {
  display: block;
  margin-top: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.69rem;
  letter-spacing: 0.07em;
  color: var(--mist);
}

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

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

@media (min-width: 760px) {
  .page-about .about-assure {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .about-assure li {
  background: var(--bg-2);
  padding: 1.15rem 1.2rem 1.3rem;
}

.page-about .about-assure__state {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-about .about-assure p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--fg-dim);
}

.page-about .about-eco {
  display: grid;
  gap: var(--about-gap);
}

@media (min-width: 900px) {
  .page-about .about-eco {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(1.6rem, 3.4vw, 2.8rem);
  }

  .page-about .about-eco .about-section__head {
    grid-column: 1 / -1;
  }
}

.page-about .about-eco__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-about .about-eco__list li {
  border-left: 2px solid var(--steel);
  padding-left: 0.95rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--fg-dim);
}

.page-about .about-eco__list strong {
  color: var(--fg);
  font-weight: 600;
}

.page-about .about-eco__list a {
  color: var(--accent-soft);
  text-underline-offset: 0.18em;
}

.page-about .about-quote {
  border: 1px solid var(--line-strong);
  background: var(--bg-2);
  padding: 1.25rem 1.25rem 1.4rem;
}

.page-about .about-quote__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--accent-soft);
}

.page-about .about-quote__text {
  margin: 0.7rem 0 0;
  font-size: 1.02rem;
  line-height: 1.75;
  font-weight: 600;
  color: var(--fg);
}

.page-about .about-quote__note {
  margin: 0.7rem 0 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--fg-dim);
}

.page-about .about-cta {
  border: 1px solid var(--line-strong);
  background: linear-gradient(135deg, rgba(27, 74, 107, 0.55), rgba(7, 27, 46, 0.92));
  padding: clamp(1.4rem, 4vw, 2.6rem);
}

.page-about .about-cta h2 {
  margin-top: 0.6rem;
}

.page-about .about-cta__text {
  margin: 1rem 0 0;
  max-width: 62ch;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--fg-dim);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.4rem;
}

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