.page-about {
  --track-w: 200px;
}

.page-about .about-hero {
  position: relative;
  padding: clamp(18px, 3vw, 28px) 0 clamp(34px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 92% 6%, rgba(53, 242, 228, 0.10), transparent 55%),
    radial-gradient(90% 70% at 0% 100%, rgba(255, 122, 47, 0.07), transparent 60%);
  overflow: hidden;
}

.page-about .breadcrumbs {
  margin: 0 0 clamp(18px, 3vw, 30px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-about h1 {
  margin: 14px 0 0;
  max-width: 15ch;
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--white);
}

.page-about .about-hero__lead {
  margin: 18px 0 0;
  max-width: 48ch;
  color: var(--mist);
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.85;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-about .hero-stats__item {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-about .hero-stats__value {
  font-family: var(--mono);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.1;
  color: var(--cyan);
}

.page-about .hero-stats__label {
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: var(--steel);
}

.page-about .about-hero__visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: 0 24px 60px -42px rgba(53, 242, 228, 0.55);
}

.page-about .about-hero__visual::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 2px;
  background: var(--orange);
  z-index: 2;
}

.page-about .about-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-about .about-hero__visual figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.page-about .about-body {
  padding: clamp(30px, 5vw, 64px) 0 clamp(40px, 6vw, 80px);
}

.page-about .about-layout {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

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

.page-about .about-track__label {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-about .about-track__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-track__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 8px;
  border-radius: var(--radius-s);
  font-size: 13px;
  line-height: 1.5;
  color: var(--steel);
  text-decoration: none;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-track__link:hover {
  color: var(--cyan);
  background: rgba(53, 242, 228, 0.07);
}

.page-about .about-track__link:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
  color: var(--white);
}

.page-about .about-track__num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cyan);
}

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

.page-about .about-chapter {
  padding-bottom: clamp(28px, 4vw, 52px);
  margin-bottom: clamp(28px, 4vw, 52px);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-offset) + 24px);
}

.page-about .about-chapter__title {
  margin: 12px 0 16px;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--white);
}

.page-about .about-text {
  margin: 0 0 14px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

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

.page-about .upgrade-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .upgrade-item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--ink-800);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .upgrade-item:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-about .upgrade-item__num {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-about .upgrade-item__title {
  margin: 6px 0 6px;
  font-size: 17px;
  line-height: 1.4;
  color: var(--white);
}

.page-about .upgrade-item__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel);
}

.page-about .about-figure {
  margin: 22px 0 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-about .about-figure--wide img {
  aspect-ratio: 14 / 9;
}

.page-about .about-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.page-about .ver-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .ver {
  position: relative;
  padding: 16px 18px 16px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(150deg, var(--ink-800), var(--ink-900));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .ver::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 16px;
  bottom: 16px;
  width: 2px;
  border-radius: 2px;
  background: var(--line);
  transition: background var(--dur) var(--ease);
}

.page-about .ver:hover,
.page-about .ver:focus-visible {
  border-color: var(--cyan);
  transform: translateY(-2px);
  outline: none;
}

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

.page-about .ver:hover::before,
.page-about .ver:focus-visible::before,
.page-about .ver:focus-within::before {
  background: var(--cyan);
}

.page-about .ver__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-about .ver__num {
  font-family: var(--mono);
  font-size: 22px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-about .ver__tag {
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-about .ver__title {
  margin: 10px 0 6px;
  font-size: 16px;
  line-height: 1.45;
  color: var(--mist);
}

.page-about .ver__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel);
}

.page-about .ver__extra {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--grass);
  transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease), margin var(--dur) var(--ease);
}

.page-about .ver:hover .ver__extra,
.page-about .ver:focus-visible .ver__extra,
.page-about .ver:focus-within .ver__extra {
  max-height: 140px;
  opacity: 1;
  margin-top: 10px;
}

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

.page-about .team-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-900));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .team-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-about .team-card:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-about .team-card__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .team-card__title {
  margin: 8px 0 8px;
  font-size: 17px;
  line-height: 1.4;
  color: var(--white);
}

.page-about .team-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel);
}

.page-about .team-card__hover {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--grass);
  transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease), margin var(--dur) var(--ease);
}

.page-about .team-card:hover .team-card__hover,
.page-about .team-card:focus-visible .team-card__hover,
.page-about .team-card:focus-within .team-card__hover {
  max-height: 90px;
  opacity: 1;
  margin-top: 10px;
}

.page-about .scene-list {
  list-style: none;
  margin: 20px 0 22px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .scene {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .scene__who {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-about .scene__get {
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel);
}

.page-about .scene__link {
  justify-self: start;
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 228, 0.4);
  padding-bottom: 1px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .scene__link:hover {
  color: var(--white);
  border-color: var(--white);
}

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

.page-about .about-cta {
  margin-top: clamp(28px, 4vw, 48px);
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background:
    radial-gradient(110% 150% at 100% 0%, rgba(255, 122, 47, 0.16), transparent 62%),
    var(--ink-800);
  display: grid;
  gap: 24px;
}

.page-about .about-cta__title {
  margin: 0 0 10px;
  font-size: clamp(21px, 2.6vw, 27px);
  line-height: 1.3;
  color: var(--white);
}

.page-about .about-cta__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 46ch;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-about .about-cta__contact {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-about .about-cta__label {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--steel);
}

.page-about .about-cta__row {
  margin: 0 0 8px;
  display: grid;
  gap: 2px;
  font-size: 13px;
  line-height: 1.6;
}

.page-about .about-cta__k {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-about .about-cta__v {
  color: var(--mist);
  word-break: break-word;
}

.page-about .about-cta__note {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--steel);
}

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

@media (min-width: 760px) {
  .page-about .about-text {
    font-size: 16px;
  }

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

  .page-about .upgrade-item:nth-child(even) {
    transform: translateY(14px);
  }

  .page-about .upgrade-item:nth-child(even):hover {
    transform: translateY(12px);
  }

  .page-about .scene {
    grid-template-columns: 132px minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-about .about-cta {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-cta__contact {
    padding-top: 0;
    padding-left: 24px;
    border-top: 0;
    border-left: 1px solid var(--line);
  }
}

@media (min-width: 1000px) {
  .page-about {
    --track-w: 210px;
  }

  .page-about .about-layout {
    grid-template-columns: var(--track-w) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }

  .page-about .about-track {
    display: block;
    position: sticky;
    top: calc(var(--header-offset) + 20px);
    padding-left: 16px;
    border-left: 1px solid var(--line);
  }
}

@media (min-width: 1100px) {
  .page-about .team-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .team-card:nth-child(even) {
    margin-top: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>