.page-about {
  --about-rail-w: 92px;
  --about-gap: 1rem;
  background: var(--ink);
  color: var(--paper);
  padding-bottom: 3rem;
}

.page-about .breadcrumb {
  padding-top: 1.25rem;
}

.page-about .rail {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-family: var(--font-data);
}

.page-about .rail__no {
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-about .rail__rot {
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--fog);
}

/* ---------- hero ---------- */
.page-about .hero {
  display: grid;
  gap: 1rem;
  padding: 1.75rem 0 2.25rem;
  border-bottom: 1px solid var(--line);
}

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

.page-about .hero h1 {
  margin: 0.6rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 6vw, 3.3rem);
  line-height: 1.16;
  letter-spacing: 0.03em;
}

.page-about .hero__lede {
  margin: 1.1rem 0 0;
  max-width: 60ch;
  font-size: 1.0625rem;
  line-height: 1.78;
  color: var(--paper);
}

.page-about .hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.88rem;
  color: var(--fog);
}

.page-about .hero__facts-k {
  font-family: var(--font-data);
  font-size: 1.05rem;
  color: var(--cyan);
  letter-spacing: 0.02em;
  margin-right: 0.25rem;
}

/* ---------- chapter frame ---------- */
.page-about .chapter {
  display: grid;
  gap: 0.85rem;
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-about .chapter__title {
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 4.4vw, 2.05rem);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .chapter__lead {
  margin: 0 0 1.35rem;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--fog);
}

.page-about .chapter__split {
  display: grid;
  gap: 1.5rem;
}

.page-about .chapter .prose p {
  margin: 0 0 1rem;
  font-size: 1.0625rem;
  line-height: 1.8;
}

/* ---------- figures ---------- */
.page-about .about-figure {
  margin: 0;
  padding: 6px;
  background: var(--indigo);
  border: 1px solid var(--line);
  box-shadow: 0 5px 0 rgba(46, 42, 92, 0.5);
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 14 / 9;
  filter: saturate(0.85) contrast(1.02);
}

.page-about .about-figure--wide img {
  aspect-ratio: 4 / 3;
}

.page-about .about-figure figcaption,
.page-about .about-band figcaption {
  padding: 0.6rem 0.2rem 0.2rem;
  font-size: 0.78rem;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--fog);
}

.page-about .about-band {
  margin: 1.5rem 0 0;
  padding: 6px;
  background: var(--teal);
  border: 1px solid var(--line);
  box-shadow: 0 5px 0 rgba(11, 59, 60, 0.5);
}

.page-about .about-band img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
  opacity: 0.9;
}

/* ---------- squad bars ---------- */
.page-about .squad {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .squad__item {
  position: relative;
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr);
  gap: 0.9rem;
  align-items: start;
  padding: 1rem 1.1rem 1.1rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-about .squad__bar {
  position: absolute;
  inset: 0 auto 0 0;
  width: calc(var(--w) * 1%);
  background: linear-gradient(90deg, rgba(56, 240, 208, 0.18), rgba(56, 240, 208, 0.02));
  border-right: 2px solid var(--cyan);
  transition: width 0.4s var(--ease), background 0.2s var(--ease);
  pointer-events: none;
}

.page-about .squad__item:hover,
.page-about .squad__item:focus-within {
  border-color: var(--line-cyan);
  transform: translateX(2px);
}

.page-about .squad__item:hover .squad__bar,
.page-about .squad__item:focus-within .squad__bar {
  background: linear-gradient(90deg, rgba(56, 240, 208, 0.32), rgba(56, 240, 208, 0.04));
}

.page-about .squad__num {
  position: relative;
  font-family: var(--font-data);
  font-size: 1.6rem;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .squad__text {
  position: relative;
  min-width: 0;
}

.page-about .squad__name {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-about .squad__duty {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--fog);
}

/* ---------- ladder steps ---------- */
.page-about .ladder {
  display: grid;
  gap: 10px;
}

.page-about .step {
  position: relative;
  border: 1px solid var(--line);
  background: var(--ink-2);
  box-shadow: 0 4px 0 rgba(46, 42, 92, 0.45);
}

.page-about .step:nth-child(2) {
  background: var(--teal);
}

.page-about .step:nth-child(3) {
  background: var(--indigo);
}

.page-about .step > summary {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.95rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: 0.05em;
  color: var(--paper);
}

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

.page-about .step > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-about .step__no {
  font-family: var(--font-data);
  font-size: 0.9rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
}

.page-about .step__sign {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 1.15rem;
  color: var(--cyan);
  line-height: 1;
}

.page-about .step__sign::before {
  content: "+";
}

.page-about .step[open] .step__sign::before {
  content: "−";
}

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

.page-about .step__body p {
  margin: 0;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.98rem;
  line-height: 1.78;
  color: var(--paper);
}

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

.page-about .scale__cell {
  background: var(--ink-2);
  padding: 1.15rem 1.1rem 1.25rem;
}

.page-about .scale__num {
  display: block;
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.9rem, 7vw, 2.7rem);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--cyan);
}

.page-about .scale__label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-about .scale__note {
  margin: 0.55rem 0 0;
  font-size: 0.86rem;
  line-height: 1.68;
  color: var(--fog);
}

/* ---------- eco ---------- */
.page-about .eco {
  display: grid;
  gap: 1rem;
}

.page-about .eco__card {
  padding: 1.15rem 1.1rem 1.25rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--orange);
}

.page-about .eco__num {
  display: block;
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 2rem;
  line-height: 1;
  color: var(--orange);
}

.page-about .eco__name {
  margin: 0.5rem 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-about .eco__card p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--fog);
}

.page-about .eco__more {
  margin: 1.25rem 0 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--fog);
}

.page-about .eco__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
}

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

/* ---------- hours ---------- */
.page-about .hours {
  display: grid;
  gap: 1.5rem;
}

.page-about .hours__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.9rem;
}

.page-about .hours__list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.98rem;
  line-height: 1.75;
  color: var(--paper);
}

.page-about .hours__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 12px;
  height: 2px;
  background: var(--cyan);
}

.page-about .hours__k {
  display: block;
  font-family: var(--font-data);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  margin-bottom: 0.15rem;
}

.page-about .hours__card {
  padding: 1.2rem 1.1rem 1.25rem;
  background: var(--teal);
  border: 1px solid var(--line);
  box-shadow: 0 5px 0 rgba(46, 42, 92, 0.5);
}

.page-about .hours__card-title {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fog);
}

.page-about .hours__mail {
  margin: 0 0 0.9rem;
  font-family: var(--font-data);
  font-size: 1rem;
  word-break: break-all;
  color: var(--paper);
}

.page-about .hours__card-note {
  margin: 1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.82rem;
  line-height: 1.68;
  color: var(--fog);
}

.page-about .copy-note {
  margin: 0.7rem 0 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--pitch);
}

/* ---------- cta ---------- */
.page-about .cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.page-about .cta .btn {
  text-decoration: none;
}

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

  .page-about .hero__lede {
    font-size: 1.1rem;
  }
}

@media (min-width: 760px) {
  .page-about .eco {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .hours {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-about {
    --about-gap: 2.5rem;
  }

  .page-about .hero,
  .page-about .chapter {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    gap: var(--about-gap);
  }

  .page-about .hero {
    padding-top: 2.75rem;
    padding-bottom: 3rem;
  }

  .page-about .chapter {
    padding-top: 3.25rem;
    padding-bottom: 3.25rem;
  }

  .page-about .rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.1rem;
    padding-top: 0.4rem;
    position: sticky;
    top: 5rem;
    align-self: start;
  }

  .page-about .rail__no {
    writing-mode: vertical-rl;
    font-size: 1.45rem;
    letter-spacing: 0.3em;
  }

  .page-about .rail__rot {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    letter-spacing: 0.3em;
  }

  .page-about .chapter__split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 2rem;
    align-items: start;
  }

  .page-about .squad__item {
    grid-template-columns: 3.6rem minmax(0, 1fr);
    padding: 1.1rem 1.35rem 1.2rem;
  }

  .page-about .squad__num {
    font-size: 1.9rem;
  }

  .page-about .ladder {
    gap: 12px;
  }

  .page-about .step:nth-child(2) {
    margin-left: 2.25rem;
  }

  .page-about .step:nth-child(3) {
    margin-left: 4.5rem;
  }

  .page-about .step:not(:last-child)::after {
    content: "";
    position: absolute;
    left: 2.1rem;
    bottom: -12px;
    width: 1px;
    height: 12px;
    background: var(--line-cyan);
  }

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

  .page-about .about-figure--wide {
    max-width: 620px;
  }
}

@media (min-width: 1080px) {
  .page-about .about-figure {
    position: sticky;
    top: 5.5rem;
  }
}

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

.page-about {
  --w: 1rem;
}