.page-about .ab-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 44px) 0 clamp(34px, 5vw, 60px);
}
.page-about .ab-hero::before {
  content: "";
  position: absolute;
  left: -20%;
  right: -20%;
  top: -34%;
  height: 152%;
  background: linear-gradient(158deg, rgba(47, 107, 255, 0.28), rgba(53, 242, 214, 0.1) 44%, rgba(5, 16, 14, 0) 70%);
  transform: skewY(-8deg);
  transform-origin: 0 0;
  pointer-events: none;
}
.page-about .ab-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(37, 64, 58, 0.32) 1px, transparent 1px);
  background-size: 96px 100%;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 88%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 88%);
  opacity: 0.6;
}
.page-about .ab-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}
.page-about .ab-hero-lead h1 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.06;
  font-size: clamp(32px, 7.2vw, 62px);
  color: var(--white);
  margin: 10px 0 18px;
  max-width: 15em;
}
.page-about .ab-lede {
  max-width: 36em;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.75;
  color: var(--muted);
  margin: 0 0 22px;
}
.page-about .ab-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .ab-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  align-self: start;
}
.page-about .ab-fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: rgba(10, 22, 20, 0.82);
}
.page-about .ab-fact-num {
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.page-about .ab-fact-num small {
  font-size: 0.5em;
  margin-left: 2px;
  color: var(--muted);
}
.page-about .ab-fact-lab {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.page-about section {
  padding: clamp(36px, 6vw, 72px) 0;
}
.page-about .ab-sec-head {
  margin-bottom: clamp(22px, 4vw, 40px);
}
.page-about .ab-sec-head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  font-size: clamp(24px, 4.4vw, 40px);
  color: var(--white);
  margin: 10px 0 14px;
  max-width: 18em;
}
.page-about .ab-sec-lede {
  max-width: 42em;
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.page-about .ab-road {
  background: linear-gradient(180deg, rgba(18, 36, 31, 0.5), rgba(5, 16, 14, 0));
}
.page-about .ab-track {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 860px;
}
.page-about .ab-step {
  position: relative;
  padding-bottom: 14px;
}
.page-about .ab-step::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 20px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--line), rgba(37, 64, 58, 0.15));
}
.page-about .ab-step:last-child::before {
  background: linear-gradient(180deg, var(--line), rgba(37, 64, 58, 0));
}
.page-about .ab-step-sum {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0 8px 40px;
  cursor: pointer;
  list-style: none;
  border-radius: 8px;
}
.page-about .ab-step-sum::-webkit-details-marker {
  display: none;
}
.page-about .ab-step-sum:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}
.page-about .ab-dot {
  position: absolute;
  left: 5px;
  top: 13px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  background: var(--ink-0);
  box-shadow: 0 0 0 4px rgba(53, 242, 214, 0.09);
  transition: background 0.24s var(--ease), box-shadow 0.24s var(--ease);
}
.page-about .ab-step-box[open] .ab-dot {
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(53, 242, 214, 0.55);
}
.page-about .ab-step-no {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
}
.page-about .ab-step-name {
  font-family: var(--font-display);
  font-size: clamp(19px, 3vw, 24px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
}
.page-about .ab-step-box[open] .ab-step-name {
  color: var(--cyan);
}
.page-about .ab-step-body {
  padding: 4px 0 14px 40px;
  max-width: 720px;
}
.page-about .ab-step-body p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.78;
}
.page-about .ab-inline {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 214, 0.4);
  padding-bottom: 1px;
}
.page-about .ab-inline:hover {
  border-bottom-color: var(--cyan);
}
.page-about .ab-figure {
  margin: 18px 0 6px;
  max-width: 440px;
}
.page-about .ab-figure figcaption,
.page-about .ab-shift-media figcaption,
.page-about .ab-wide-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--dim);
}
.page-about .ab-figure img,
.page-about .ab-shift-media img,
.page-about .ab-wide-figure img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-about .ab-shifts {
  padding-bottom: 0;
}
.page-about .ab-sec-head--split {
  display: grid;
  gap: 24px;
}
.page-about .ab-shift-media {
  margin: 0;
}
.page-about .ab-shift-band {
  margin-top: clamp(22px, 4vw, 36px);
  padding: 24px 0 28px;
  background: linear-gradient(180deg, rgba(18, 36, 31, 0.92), rgba(10, 22, 20, 0.92));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.page-about .ab-shift-grid {
  display: grid;
  gap: 22px;
}
.page-about .ab-shift {
  position: relative;
  padding-top: 16px;
}
.page-about .ab-shift::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 3px;
  border-radius: 2px;
}
.page-about .ab-shift--a::before {
  background: var(--blue);
}
.page-about .ab-shift--b::before {
  background: var(--cyan);
}
.page-about .ab-shift--c::before {
  background: var(--orange);
}
.page-about .ab-shift--d::before {
  background: var(--dim);
}
.page-about .ab-shift-time {
  display: block;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 6px;
}
.page-about .ab-shift h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.page-about .ab-shift p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-about .ab-wide-figure {
  margin: 0 0 clamp(24px, 4vw, 38px);
}
.page-about .ab-wide-figure .media-frame {
  overflow: hidden;
}
.page-about .ab-check-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: clamp(28px, 5vw, 44px);
}
.page-about .ab-check {
  background: var(--ink-1);
  padding: 20px 18px;
}
.page-about .ab-check-no {
  display: inline-block;
  font-size: 12px;
  color: var(--blue);
  margin-bottom: 8px;
  letter-spacing: 0.1em;
}
.page-about .ab-check h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 8px;
}
.page-about .ab-check p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}
.page-about .ab-net-wrap {
  display: grid;
  gap: 20px;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 36, 31, 0.42);
}
.page-about .ab-net-copy h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.page-about .ab-net-copy p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}
.page-about .ab-net {
  width: 100%;
  height: auto;
  display: block;
  max-width: 640px;
}
.page-about .ab-net-hub {
  fill: var(--white);
  opacity: 0.75;
}
.page-about .ab-net-node {
  cursor: pointer;
  outline: none;
}
.page-about .ab-net-node circle {
  fill: #0A1614;
  stroke: var(--cyan);
  stroke-width: 2;
  transition: fill 0.2s var(--ease), transform 0.2s var(--ease);
  transform-box: fill-box;
  transform-origin: center;
}
.page-about .ab-net-node--b circle {
  stroke: var(--blue);
}
.page-about .ab-net-node text {
  fill: var(--muted);
  font-size: 13px;
  font-family: var(--font-body);
  transition: fill 0.2s var(--ease);
}
.page-about .ab-net-node:hover circle,
.page-about .ab-net-node:focus-visible circle {
  fill: var(--cyan);
  transform: scale(1.25);
}
.page-about .ab-net-node--b:hover circle,
.page-about .ab-net-node--b:focus-visible circle {
  fill: var(--blue);
}
.page-about .ab-net-node:hover text,
.page-about .ab-net-node:focus-visible text {
  fill: var(--white);
}

.page-about .ab-metrics {
  background: linear-gradient(180deg, rgba(18, 36, 31, 0.42), rgba(5, 16, 14, 0));
}
.page-about .ab-tickets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-about .ab-ticket {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 20px 20px 26px;
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-about .ab-ticket::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
}
.page-about .ab-ticket--blue::before {
  background: var(--blue);
}
.page-about .ab-ticket--cyan::before {
  background: var(--cyan);
}
.page-about .ab-ticket--orange::before {
  background: var(--orange);
}
.page-about .ab-ticket-k {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-about .ab-ticket-v {
  font-size: clamp(30px, 6vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--white);
  font-variant-numeric: tabular-nums;
}
.page-about .ab-ticket--blue .ab-ticket-v {
  color: var(--blue);
}
.page-about .ab-ticket--cyan .ab-ticket-v {
  color: var(--cyan);
}
.page-about .ab-ticket--orange .ab-ticket-v {
  color: var(--orange);
}
.page-about .ab-ticket-v small {
  font-size: 0.42em;
  margin-left: 3px;
  color: var(--muted);
  font-weight: 500;
}
.page-about .ab-ticket p {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--muted);
}

.page-about .ab-contact {
  padding-bottom: clamp(48px, 8vw, 88px);
}
.page-about .ab-contact-inner {
  max-width: 620px;
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10, 22, 20, 0.78);
}
.page-about .ab-contact-inner h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 4vw, 32px);
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--white);
  margin: 8px 0 12px;
}
.page-about .ab-contact-lede {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}
.page-about .ab-contact-list {
  margin: 0 0 18px;
  display: grid;
  gap: 14px;
}
.page-about .ab-contact-list dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 4px;
}
.page-about .ab-contact-list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}
.page-about .ab-contact-list a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}
.page-about .ab-contact-list a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-about .ab-contact-note {
  margin: 0 0 20px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--dim);
}

@media (min-width: 700px) {
  .page-about .ab-check-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .ab-tickets {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .ab-shift-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 0;
  }
  .page-about .ab-shift {
    padding: 0 22px;
  }
  .page-about .ab-shift:first-child {
    padding-left: 0;
  }
  .page-about .ab-shift::before {
    left: 22px;
  }
  .page-about .ab-shift:first-child::before {
    left: 0;
  }
}

@media (min-width: 860px) {
  .page-about .ab-hero-inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.9fr);
    align-items: end;
    gap: 48px;
  }
  .page-about .ab-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .ab-sec-head--split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 40px;
  }
  .page-about .ab-shift-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }
  .page-about .ab-shift {
    border-left: 1px solid var(--line);
    padding-left: 22px;
    padding-right: 22px;
  }
  .page-about .ab-shift:first-child {
    border-left: 0;
    padding-left: 0;
  }
  .page-about .ab-shift::before {
    left: 22px;
    width: 34px;
  }
  .page-about .ab-shift:first-child::before {
    left: 0;
  }
  .page-about .ab-net-wrap {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
    align-items: center;
    gap: 32px;
  }
  .page-about .ab-step-body {
    padding-left: 40px;
  }
  .page-about .ab-figure {
    max-width: 460px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-dot,
  .page-about .ab-net-node circle,
  .page-about .ab-net-node text {
    transition: none;
  }
}
<<<END>>>