.page-about {
  --about-line-soft: rgba(29, 40, 54, 0.7);
  --about-rail: 180px;
  position: relative;
  background: var(--ink-900);
  color: var(--white);
  overflow-x: clip;
}

/* ---------- HERO ---------- */
.page-about .about-hero {
  position: relative;
  padding: 32px 0 0;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(180deg, rgba(25, 230, 255, 0.035) 0 1px, transparent 1px 4px);
  pointer-events: none;
  z-index: 0;
}
.page-about .about-hero > .container {
  position: relative;
  z-index: 1;
}
.page-about .about-hero .breadcrumb {
  margin-bottom: 28px;
}
.page-about .about-hero__grid {
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
  align-items: start;
}
.page-about .about-hero__copy {
  max-width: 720px;
}
.page-about .about-hero__kicker {
  display: inline-block;
  margin: 0 0 24px;
  padding: 6px 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  border: 1px solid rgba(25, 230, 255, 0.4);
  background: rgba(25, 230, 255, 0.06);
  text-transform: uppercase;
}
.page-about .about-hero__title {
  font-size: clamp(38px, 8vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 900;
  margin: 0 0 24px;
  color: var(--white);
}
.page-about .about-hero__title em {
  font-style: normal;
  color: var(--cyan);
  text-shadow: -1px -1px 0 var(--cyan-deep), 0 0 30px rgba(25, 230, 255, 0.35);
}
.page-about .about-hero__lede {
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.8;
  color: var(--silver);
  max-width: 640px;
  margin: 0 0 20px;
}
.page-about .about-hero__note {
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
  max-width: 560px;
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid var(--cyan);
}
.page-about .about-hero__stamp {
  align-self: end;
  background: var(--ink-800);
  border: 1px solid var(--line);
  padding: 20px;
  position: relative;
}
.page-about .about-hero__stamp::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 20px;
  right: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta), var(--amber));
}
.page-about .about-hero__stamp-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  margin: 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--white);
}
.page-about .about-hero__stamp-row .mono {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver);
}
.page-about .about-hero__stamp-foot {
  margin: 14px 0 0;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  opacity: 0.7;
}
.page-about .about-hero__media {
  margin-top: 40px;
  position: relative;
  overflow: hidden;
}
.page-about .about-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, var(--ink-900) 100%);
  pointer-events: none;
}
.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: contrast(1.06) saturate(1.1);
}

/* ---------- CHAPTER BASE ---------- */
.page-about .about-chapter {
  position: relative;
  padding-block: 72px;
}
.page-about .about-chapter__head {
  margin-bottom: 40px;
  position: relative;
  border-left: 2px solid var(--line);
  padding-left: 20px;
}
.page-about .about-chapter .eyebrow {
  display: block;
  margin: 0 0 12px;
  padding-left: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  text-transform: uppercase;
}
.page-about .about-chapter__title {
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 0;
  max-width: 820px;
}
.page-about .about-chapter__sub {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
  max-width: 620px;
}

/* ---------- ORIGIN ---------- */
.page-about .about-origin__grid {
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
}
.page-about .about-origin__text p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
  margin: 0 0 16px;
}
.page-about .about-origin__lead {
  color: var(--white);
  font-size: 16px;
}
.page-about .about-origin__text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(25, 230, 255, 0.5);
}
.page-about .about-origin__text a:hover {
  border-bottom-style: solid;
}
.page-about .about-origin__figure {
  margin: 0;
  position: relative;
}
.page-about .about-origin__figure::before {
  content: "";
  position: absolute;
  inset: -6px 8px 6px -6px;
  border: 1px solid var(--line);
  z-index: 0;
  pointer-events: none;
}
.page-about .about-origin__figure img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  filter: contrast(1.04) saturate(1.05);
}
.page-about .about-origin__caption {
  display: block;
  margin-top: 14px;
  padding-left: 12px;
  border-left: 2px solid var(--amber);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver);
}
.page-about .about-origin__fields {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding: 0;
  margin: 36px 0 0;
  border-top: 1px solid var(--line);
}
.page-about .about-origin__fields li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 0;
  font-size: 14px;
  color: var(--white);
  border-bottom: 1px solid var(--line-soft);
}
.page-about .about-origin__fields .mono {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- TIMELINE ---------- */
.page-about .about-timeline {
  background: var(--ink-850);
  position: relative;
}
.page-about .about-timeline::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 55% 45% at 0% 40%, rgba(25, 230, 255, 0.06), transparent 70%);
  pointer-events: none;
}
.page-about .about-timeline .container {
  position: relative;
  z-index: 1;
}
.page-about .about-timeline__list {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
}
.page-about .about-timeline__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding-bottom: 24px;
  position: relative;
}
.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}
.page-about .about-timeline__year {
  display: block;
  font-size: 38px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
  text-shadow: 0 0 18px rgba(25, 230, 255, 0.28);
}
.page-about .about-timeline__item--current .about-timeline__year {
  color: var(--amber);
  text-shadow: 0 0 18px rgba(255, 184, 0, 0.3);
}
.page-about .about-timeline__body {
  position: relative;
  background: var(--ink-800);
  border: 1px solid var(--line);
  padding: 18px 20px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.page-about .about-timeline__body[open] {
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(25, 230, 255, 0.25), 0 0 24px rgba(25, 230, 255, 0.08);
}
.page-about .about-timeline__body > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.page-about .about-timeline__body > summary::-webkit-details-marker {
  display: none;
}
.page-about .about-timeline__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.4;
}
.page-about .about-timeline__cue {
  display: inline-flex;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1;
  transition: transform 0.24s var(--ease), background 0.24s var(--ease), color 0.24s var(--ease);
}
.page-about .about-timeline__body:hover .about-timeline__cue {
  background: rgba(25, 230, 255, 0.12);
}
.page-about .about-timeline__body[open] .about-timeline__cue {
  transform: rotate(45deg);
  background: var(--cyan);
  color: var(--ink-900);
}
.page-about .about-timeline__desc {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}
.page-about .about-timeline__desc p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- QUALITY ---------- */
.page-about .about-quality__figure {
  margin: 0 0 32px;
  position: relative;
  overflow: hidden;
}
.page-about .about-quality__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(180deg, rgba(8, 11, 16, 0.25) 0 1px, transparent 1px 3px);
  pointer-events: none;
}
.page-about .about-quality__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: contrast(1.05) saturate(1.05);
}
.page-about .about-quality__caption {
  display: block;
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--magenta);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver);
}
.page-about .about-quality__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 32px;
}
.page-about .about-quality__stat {
  background: var(--ink-800);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.page-about .about-quality__num {
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.page-about .about-quality__key {
  font-size: 12px;
  color: var(--silver);
  letter-spacing: 0.04em;
  line-height: 1.5;
}
.page-about .about-quality__text p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
  margin: 0 0 16px;
}
.page-about .about-quality__text p:first-child {
  color: var(--white);
}
.page-about .about-quality__text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(25, 230, 255, 0.5);
}
.page-about .about-quality__text a:hover {
  border-bottom-style: solid;
}

/* ---------- CADENCE ---------- */
.page-about .about-cadence {
  background: var(--ink-850);
  position: relative;
}
.page-about .about-cadence__grid {
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
}
.page-about .about-cadence__main p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
  margin: 0 0 16px;
}
.page-about .about-cadence__main p:first-child {
  color: var(--white);
  font-size: 16px;
}
.page-about .about-cadence__panel {
  position: relative;
  background: var(--ink-800);
  border: 1px solid var(--line);
  padding: 22px 20px;
}
.page-about .about-cadence__panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 20px;
  right: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--amber));
}
.page-about .about-cadence__panel-title {
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
  text-transform: uppercase;
}
.page-about .about-cadence__steps {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
}
.page-about .about-cadence__steps li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--white);
  border-bottom: 1px solid var(--line-soft);
}
.page-about .about-cadence__steps li .mono {
  flex-shrink: 0;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}
.page-about .about-cadence__panel .btn {
  display: inline-block;
}

/* ---------- PARTNER ---------- */
.page-about .about-partner__cards {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}
.page-about .about-partner__card {
  position: relative;
  background: var(--ink-800);
  border: 1px solid var(--line);
  padding: 22px 20px;
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease);
}
.page-about .about-partner__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--cyan);
  opacity: 0;
  transition: opacity 0.24s var(--ease);
}
.page-about .about-partner__card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}
.page-about .about-partner__card:hover::before {
  opacity: 1;
}
.page-about .about-partner__index {
  margin: 0 0 12px;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--magenta);
}
.page-about .about-partner__name {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--white);
  line-height: 1.35;
}
.page-about .about-partner__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}
.page-about .about-partner__note {
  margin: 28px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--amber);
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}
.page-about .about-partner__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(25, 230, 255, 0.55);
}
.page-about .about-partner__note a:hover {
  border-bottom-style: solid;
}

/* ---------- CREED ---------- */
.page-about .about-creed {
  position: relative;
  background:
    radial-gradient(ellipse 80% 55% at 50% 0%, rgba(25, 230, 255, 0.08), transparent 70%),
    var(--ink-900);
  padding-bottom: 88px;
}
.page-about .about-creed::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(180deg, rgba(25, 230, 255, 0.028) 0 1px, transparent 1px 5px);
  pointer-events: none;
}
.page-about .about-creed .container {
  position: relative;
  z-index: 1;
}
.page-about .about-creed__inner {
  max-width: 700px;
}
.page-about .about-creed__eyebrow {
  margin: 0 0 20px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  text-transform: uppercase;
}
.page-about .about-creed__title {
  margin: 0 0 28px;
  font-size: clamp(30px, 5vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
}
.page-about .about-creed__title em {
  font-style: normal;
  color: var(--cyan);
  text-shadow: -1px -1px 0 var(--cyan-deep), 0 0 26px rgba(25, 230, 255, 0.28);
}
.page-about .about-creed__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
}
.page-about .about-creed__links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
}
.page-about .about-creed__sig {
  margin: 48px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--silver);
}

/* ---------- RESPONSIVE ---------- */
@media (min-width: 640px) {
  .page-about .about-origin__fields {
    grid-template-columns: repeat(5, 1fr);
  }
  .page-about .about-origin__fields li {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 14px 12px;
    border-bottom: 0;
    border-right: 1px solid var(--line-soft);
  }
  .page-about .about-origin__fields li:first-child {
    padding-left: 0;
  }
  .page-about .about-origin__fields li:last-child {
    border-right: 0;
  }
  .page-about .about-quality__grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-timeline__year {
    font-size: 46px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: 40px;
  }
  .page-about .about-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: end;
  }
  .page-about .about-hero__stamp {
    align-self: end;
    margin-bottom: 8px;
  }
  .page-about .about-hero__media {
    margin-top: 56px;
  }

  .page-about .about-chapter {
    padding-block: 96px;
  }
  .page-about .about-chapter__head {
    padding-left: 24px;
    margin-bottom: 48px;
  }

  .page-about .about-origin__grid {
    grid-template-columns: 5fr 4fr;
    gap: 48px;
    align-items: start;
  }

  .page-about .about-timeline__list::before {
    content: "";
    position: absolute;
    left: var(--about-rail);
    top: 20px;
    bottom: 40px;
    width: 1px;
    background: linear-gradient(180deg, var(--cyan) 0%, var(--line) 40%, var(--line) 100%);
  }
  .page-about .about-timeline__item {
    grid-template-columns: var(--about-rail) 1fr;
    gap: 32px;
    align-items: start;
    padding-bottom: 40px;
  }
  .page-about .about-timeline__year {
    font-size: 56px;
    position: sticky;
    top: 132px;
    align-self: start;
    padding-right: 16px;
  }
  .page-about .about-timeline__body {
    grid-column: 2;
    position: relative;
    padding: 22px 24px;
  }
  .page-about .about-timeline__body::before {
    content: "";
    position: absolute;
    left: -32px;
    top: 22px;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: var(--ink-900);
    border: 2px solid var(--cyan);
    box-shadow: 0 0 12px rgba(25, 230, 255, 0.45);
  }
  .page-about .about-timeline__item--current .about-timeline__body::before {
    border-color: var(--amber);
    box-shadow: 0 0 14px rgba(255, 184, 0, 0.5);
  }

  .page-about .about-quality__figure {
    margin-bottom: 40px;
  }
  .page-about .about-quality__grid {
    margin-bottom: 40px;
  }
  .page-about .about-quality__text {
    columns: 2;
    column-gap: 48px;
  }
  .page-about .about-quality__text p:first-child {
    margin-top: 0;
  }

  .page-about .about-cadence__grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
    align-items: start;
  }
  .page-about .about-cadence__panel {
    position: sticky;
    top: 132px;
  }

  .page-about .about-partner__cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .page-about .about-partner__card:nth-child(2) {
    transform: translateY(16px);
  }
  .page-about .about-partner__card:nth-child(2):hover {
    transform: translateY(14px);
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero__title {
    font-size: clamp(56px, 7vw, 96px);
  }
  .page-about .about-quality__num {
    font-size: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__cue,
  .page-about .about-partner__card,
  .page-about .about-partner__card::before,
  .page-about .about-timeline__body {
    transition: none;
  }
  .page-about .about-timeline__year {
    position: static;
  }
}