.page-about {
  --about-line: var(--grid);
  --about-cut: 22px;
  display: block;
  overflow-x: clip;
}

.page-about .about-crumb {
  padding-top: clamp(14px, 3vw, 26px);
}

.page-about .about-crumb .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-about .about-crumb .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-crumb .breadcrumb a:hover,
.page-about .about-crumb .breadcrumb a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(22px, 4.5vw, 52px) 0 clamp(28px, 5vw, 56px);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: -22%;
  right: -14%;
  width: min(620px, 78vw);
  height: min(620px, 78vw);
  background: radial-gradient(circle at 50% 50%, rgba(63, 242, 208, 0.13), rgba(4, 18, 31, 0) 62%);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  min-width: 0;
}

.page-about .about-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 8.4vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-about .about-hero__title span {
  color: var(--signal);
}

.page-about .about-hero__lead {
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  max-width: 560px;
  color: var(--mist);
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.8;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

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

.page-about .about-hero__figure .media__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--grid);
  background: var(--hull);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, 0 100%);
}

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

.page-about .about-hero__figure .media__caption {
  margin-top: 10px;
  color: var(--mist);
  font-size: 11px;
}

/* ---------- meta strip ---------- */
.page-about .about-meta__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(20px, 3.4vw, 44px);
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 18px 0 16px;
  list-style: none;
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}

.page-about .about-meta__item {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-about .about-meta__num {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.4vw, 24px);
  letter-spacing: 0.02em;
  color: var(--signal);
}

.page-about .about-meta__label {
  font-size: 13px;
  color: var(--mist);
}

/* ---------- shared section rhythm ---------- */
.page-about .about-band {
  padding: clamp(46px, 7.5vw, 96px) 0;
}

.page-about .about-band--trench {
  background: var(--trench);
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}

.page-about .about-band--hull {
  background: linear-gradient(180deg, rgba(11, 44, 63, 0.72), rgba(4, 18, 31, 0.96));
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}

.page-about .about-head {
  max-width: 720px;
}

.page-about .about-head__lead {
  margin: 14px 0 0;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.8;
}

.page-about .about-h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.6vw, 42px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-about .about-body p {
  margin: 0 0 16px;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.85;
}

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

/* ---------- origin ---------- */
.page-about .about-origin__grid {
  display: grid;
  gap: clamp(22px, 4vw, 56px);
  min-width: 0;
}

.page-about .about-plate__index {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(46px, 8vw, 88px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--signal-dim);
  opacity: 0.6;
}

.page-about .about-plate .about-h2 {
  margin-top: 8px;
}

.page-about .about-plate__tag {
  display: block;
  margin-top: 14px;
  color: var(--mist);
  font-size: 11px;
}

/* ---------- method ---------- */
.page-about .about-views {
  list-style: none;
  margin: clamp(24px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-about .about-view {
  background: var(--trench);
  padding: clamp(20px, 3vw, 30px);
  border-top: 2px solid var(--signal);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-view:nth-child(2) {
  border-top-color: var(--deep-cyan);
}

.page-about .about-view:nth-child(3) {
  border-top-color: var(--amber);
}

.page-about .about-view:hover {
  background: var(--hull);
}

.page-about .about-view__tag {
  color: var(--signal);
  font-size: 11px;
}

.page-about .about-view:nth-child(3) .about-view__tag {
  color: var(--amber);
}

.page-about .about-view h3 {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 23px);
  line-height: 1.35;
  color: var(--white);
}

.page-about .about-view p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- timeline ---------- */
.page-about .about-timeline__figure {
  margin: clamp(22px, 4vw, 36px) 0 clamp(28px, 4.5vw, 46px);
  border: 1px solid var(--grid);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
}

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

.page-about .about-track-layout {
  display: grid;
  gap: clamp(20px, 3.6vw, 44px);
  min-width: 0;
}

.page-about .about-years__title {
  color: var(--mist);
  font-size: 11px;
}

.page-about .about-years ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 0;
  padding: 0;
}

.page-about .about-years a {
  display: inline-block;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid var(--grid);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-years a:hover,
.page-about .about-years a:focus-visible {
  color: var(--abyss);
  background: var(--signal);
  border-color: var(--signal);
}

.page-about .about-track {
  list-style: none;
  margin: 0;
  padding: 0 0 0 clamp(18px, 3vw, 28px);
  border-left: 1px solid var(--grid);
  display: grid;
  gap: clamp(16px, 2.6vw, 24px);
}

.page-about .about-track__item {
  position: relative;
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--hull);
  border: 1px solid var(--grid);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-track__item::before {
  content: "";
  position: absolute;
  top: 26px;
  left: calc(-1 * clamp(18px, 3vw, 28px) - 5px);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(63, 242, 208, 0.14);
}

.page-about .about-track__item:hover,
.page-about .about-track__item:focus-within {
  border-color: var(--signal-dim);
  background: #0E3549;
  transform: translateX(2px);
}

.page-about .about-track__year {
  color: var(--amber);
  font-size: 12px;
}

.page-about .about-track__item h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.3vw, 22px);
  color: var(--white);
}

.page-about .about-track__item p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- crew ---------- */
.page-about .about-crew__list {
  list-style: none;
  margin: clamp(24px, 3.6vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-about .about-crew__item {
  background: var(--abyss);
  padding: clamp(18px, 2.6vw, 26px);
}

.page-about .about-crew__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 34px);
  line-height: 1;
  color: var(--signal);
}

.page-about .about-crew__item h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--white);
}

.page-about .about-crew__item p {
  margin: 0;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-about .about-crew__figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

.page-about .about-crew__figure .media__frame {
  overflow: hidden;
  border: 1px solid var(--grid);
  background: var(--abyss);
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--about-cut) 100%, 0 calc(100% - var(--about-cut)));
}

.page-about .about-crew__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 240ms var(--ease);
}

.page-about .about-crew__figure:hover img {
  transform: scale(1.02);
}

.page-about .about-crew__figure .media__caption {
  margin-top: 10px;
  color: var(--mist);
  font-size: 11px;
}

/* ---------- partners ---------- */
.page-about .about-partners__grid {
  display: grid;
  gap: clamp(24px, 4vw, 56px);
  min-width: 0;
}

.page-about .about-partners__intro .about-body {
  margin-top: 16px;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.85;
}

.page-about .about-partners__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-partners__item {
  padding: 20px 0;
  border-top: 1px solid var(--grid);
  transition: border-color var(--dur) var(--ease);
}

.page-about .about-partners__item:first-child {
  border-top-color: var(--signal-dim);
}

.page-about .about-partners__item:last-child {
  border-bottom: 1px solid var(--grid);
}

.page-about .about-partners__item:hover {
  border-top-color: var(--signal);
}

.page-about .about-partners__tag {
  display: inline-block;
  padding: 3px 9px;
  color: var(--abyss);
  background: var(--signal);
  font-size: 11px;
}

.page-about .about-partners__item:nth-child(2) .about-partners__tag {
  background: var(--coral);
}

.page-about .about-partners__item:nth-child(3) .about-partners__tag {
  background: var(--amber);
}

.page-about .about-partners__item h3 {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.3vw, 21px);
  color: var(--white);
}

.page-about .about-partners__item p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- promise ---------- */
.page-about .about-promise__grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 4vw, 40px);
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-about .about-promise__item {
  background: var(--abyss);
  padding: clamp(20px, 3vw, 30px);
  border-left: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-promise__item:hover {
  border-left-color: var(--signal);
  background: var(--hull);
}

.page-about .about-promise__tag {
  color: var(--coral);
  font-size: 11px;
}

.page-about .about-promise__item h3 {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.3vw, 21px);
  color: var(--white);
}

.page-about .about-promise__item p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- cta ---------- */
.page-about .about-cta {
  padding: clamp(46px, 7vw, 88px) 0 clamp(36px, 5vw, 64px);
}

.page-about .about-cta__inner {
  display: grid;
  gap: clamp(20px, 3.6vw, 40px);
  padding: clamp(24px, 4vw, 48px);
  background: linear-gradient(135deg, rgba(63, 242, 208, 0.12), rgba(255, 122, 77, 0.08) 62%, rgba(4, 18, 31, 0.9));
  border: 1px solid var(--grid);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, 0 100%);
  min-width: 0;
}

.page-about .about-cta__title {
  margin: 10px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-about .about-cta__text p {
  margin: 0;
  max-width: 560px;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.8;
}

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

/* ---------- back to top ---------- */
.page-about .about-top {
  display: inline-block;
  margin: 0 0 clamp(30px, 5vw, 56px);
  padding: 8px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--grid);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-top:hover,
.page-about .about-top:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- responsive ---------- */
@media (min-width: 720px) {
  .page-about .about-meta__list {
    justify-content: flex-start;
  }

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

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

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

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: end;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-about .about-plate {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

  .page-about .about-track-layout {
    grid-template-columns: 190px minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-years {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }

  .page-about .about-years ul {
    flex-direction: column;
    gap: 2px;
  }

  .page-about .about-years a {
    display: block;
    border-color: transparent;
    border-left: 2px solid var(--grid);
  }

  .page-about .about-partners__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-about .about-partners__intro {
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-track__item:hover,
  .page-about .about-track__item:focus-within,
  .page-about .about-crew__figure:hover img {
    transform: none;
  }
}
<<<END>>>