.page-about {
  --about-radius: 2px;
  --about-gap: 18px;
  background: var(--ink-950);
  color: var(--warm-white);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-about h1 {
  font-size: clamp(34px, 8.4vw, 68px);
  line-height: 1.02;
  margin-bottom: 18px;
}

.page-about h2 {
  font-size: clamp(26px, 5.6vw, 44px);
  line-height: 1.08;
  margin-bottom: 14px;
}

.page-about h3 {
  font-size: clamp(18px, 2.6vw, 23px);
  font-weight: 700;
  line-height: 1.28;
}

.page-about p {
  margin: 0;
}

.page-about .about-lede {
  font-size: 16px;
  line-height: 1.85;
  max-width: 62ch;
}

.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-about .about-kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: currentColor;
  flex: 0 0 auto;
}

/* ---------- hero ---------- */
.page-about .about-hero {
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(34, 230, 255, 0.16), transparent 58%),
    radial-gradient(90% 70% at 0% 110%, rgba(255, 106, 43, 0.1), transparent 60%),
    linear-gradient(165deg, var(--ink-900) 0%, var(--ink-950) 62%);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 34px;
  padding-block: 34px 52px;
}

.page-about .about-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(246, 241, 231, 0.55);
  margin-bottom: 22px;
}

.page-about .about-crumb a {
  color: var(--cyan-soft);
  text-decoration: none;
}

.page-about .about-crumb a:hover {
  color: var(--cyan);
}

.page-about .about-hero .about-lede {
  color: rgba(246, 241, 231, 0.78);
}

.page-about .about-hero__stats {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 14px;
}

.page-about .about-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.page-about .about-stat__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--cyan);
}

.page-about .about-hero__stats li:nth-child(2n) .about-stat__num {
  color: var(--orange);
}

.page-about .about-stat__label {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(246, 241, 231, 0.6);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero__visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
  box-shadow: var(--shadow-card);
}

.page-about .about-hero__visual::after {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 64px;
  height: 3px;
  background: var(--orange);
}

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

.page-about .about-hero__caption {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(246, 241, 231, 0.66);
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  background: rgba(7, 17, 31, 0.72);
}

/* ---------- section shell ---------- */
.page-about .about-section {
  padding-block: 54px;
}

.page-about .about-section--light {
  background: var(--warm-white);
  color: var(--text-on-light);
}

.page-about .about-section--paper {
  background: var(--paper);
  color: var(--text-on-light);
}

.page-about .about-section--ink {
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-950) 100%);
  color: var(--warm-white);
}

.page-about .about-section--light .about-kicker,
.page-about .about-section--paper .about-kicker {
  color: var(--orange);
}

.page-about .about-section--ink .about-lede {
  color: rgba(246, 241, 231, 0.74);
}

.page-about .about-section--light .about-lede,
.page-about .about-section--paper .about-lede {
  color: var(--muted-slate);
}

.page-about .about-head {
  max-width: 700px;
  margin-bottom: 32px;
}

/* ---------- split + lines ---------- */
.page-about .about-split {
  display: grid;
  gap: 28px;
}

.page-about .about-prose p {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(17, 28, 43, 0.82);
}

.page-about .about-prose p + p {
  margin-top: 16px;
}

.page-about .about-lines {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-line {
  position: relative;
  background: var(--paper);
  border: 1px solid rgba(17, 28, 43, 0.14);
  border-left: 3px solid var(--text-on-light);
  padding: 16px 18px 18px;
  box-shadow: 0 10px 26px rgba(7, 17, 31, 0.06);
}

.page-about .about-line__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--orange);
  margin-bottom: 6px;
}

.page-about .about-line h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.page-about .about-line p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted-slate);
}

/* ---------- scenes ---------- */
.page-about .about-scenes {
  display: grid;
  gap: 16px;
}

.page-about .about-scene {
  background: linear-gradient(180deg, rgba(18, 38, 61, 0.96), rgba(11, 26, 46, 0.96));
  border: 1px solid var(--line);
  padding: 22px 20px 24px;
  transition: border-color var(--transition), transform var(--transition);
}

.page-about .about-scene:hover {
  border-color: rgba(34, 230, 255, 0.45);
}

.page-about .about-chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--cyan);
  border: 1px solid rgba(34, 230, 255, 0.36);
  padding: 3px 9px;
  margin-bottom: 14px;
}

.page-about .about-scene h3 {
  color: var(--warm-white);
  margin-bottom: 10px;
}

.page-about .about-scene p:last-child {
  font-size: 15px;
  line-height: 1.85;
  color: rgba(246, 241, 231, 0.72);
}

/* ---------- team ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: 26px;
}

.page-about .about-shot {
  margin: 0;
  border: 1px solid rgba(17, 28, 43, 0.16);
  background: var(--warm-white);
  box-shadow: 0 12px 30px rgba(7, 17, 31, 0.08);
}

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

.page-about .about-shot figcaption {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--muted-slate);
  padding: 10px 12px;
  border-top: 1px solid rgba(17, 28, 43, 0.12);
}

.page-about .about-roles {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-role {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 4px 12px;
  padding: 14px 16px;
  background: var(--paper);
  border: 1px solid rgba(17, 28, 43, 0.14);
}

.page-about .about-role__num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}

.page-about .about-role__name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
}

.page-about .about-role__desc {
  grid-column: 1 / -1;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted-slate);
}

.page-about .about-flow {
  list-style: none;
  counter-reset: about-step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-flow__step {
  counter-increment: about-step;
  position: relative;
  padding-left: 46px;
  padding-bottom: 2px;
}

.page-about .about-flow__step::before {
  content: counter(about-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-950);
  background: var(--cyan);
}

.page-about .about-flow__step::after {
  content: "";
  position: absolute;
  left: 14px;
  top: 34px;
  bottom: -14px;
  width: 1px;
  background: rgba(17, 28, 43, 0.2);
}

.page-about .about-flow__step:last-child::after {
  display: none;
}

.page-about .about-flow__step h3 {
  font-size: 17px;
  margin-bottom: 4px;
}

.page-about .about-flow__step p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted-slate);
  transition: color var(--transition);
}

.page-about .about-flow__step:hover::before {
  background: var(--orange);
  color: var(--paper);
}

.page-about .about-flow__step:hover p {
  color: var(--text-on-light);
}

/* ---------- version ---------- */
.page-about .about-version {
  display: grid;
  gap: 24px;
}

.page-about .about-axis {
  display: flex;
  gap: 0;
  overflow-x: auto;
  padding-bottom: 6px;
  border-top: 1px solid var(--line);
  scrollbar-width: thin;
}

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

.page-about .about-axis__link {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 0 0 auto;
  min-width: 148px;
  padding: 12px 14px;
  border-left: 2px solid var(--line);
  color: rgba(246, 241, 231, 0.72);
  font-size: 13px;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.page-about .about-axis__link:hover,
.page-about .about-axis__link:focus-visible {
  color: var(--warm-white);
  border-left-color: var(--cyan);
  background: rgba(34, 230, 255, 0.07);
}

.page-about .about-axis__year {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-about .about-nodes {
  display: grid;
  gap: 16px;
}

.page-about .about-node {
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: rgba(18, 38, 61, 0.62);
  padding: 20px;
}

.page-about .about-node--test {
  border-left-color: var(--orange);
  background: rgba(255, 106, 43, 0.08);
}

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

.page-about .about-node__year {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--cyan);
}

.page-about .about-node--test .about-node__year {
  color: var(--orange);
}

.page-about .about-node h3 {
  font-size: 20px;
  color: var(--warm-white);
}

.page-about .about-node p {
  font-size: 15px;
  line-height: 1.85;
  color: rgba(246, 241, 231, 0.74);
}

.page-about .about-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--status-amber);
  border: 1px solid rgba(255, 106, 43, 0.5);
  padding: 3px 9px;
}

.page-about .about-shot--wide {
  border-color: var(--line);
  background: var(--ink-800);
  box-shadow: none;
}

.page-about .about-shot--wide figcaption {
  color: rgba(246, 241, 231, 0.62);
  border-top-color: var(--line);
}

/* ---------- partners ---------- */
.page-about .about-partners {
  display: grid;
  gap: 14px;
}

.page-about .about-partner {
  padding: 20px 18px;
  border: 1px solid rgba(17, 28, 43, 0.16);
  border-top: 3px solid var(--text-on-light);
  background: var(--paper);
}

.page-about .about-partner h3 {
  font-size: 19px;
  margin-bottom: 8px;
}

.page-about .about-partner p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted-slate);
}

/* ---------- contact ---------- */
.page-about .about-contact {
  display: grid;
  gap: 24px;
}

.page-about .about-contact__note p {
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(246, 241, 231, 0.76);
}

.page-about .about-contact__note p + p {
  margin-top: 14px;
}

.page-about .about-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-about .about-contact__card {
  background: var(--ink-800);
  border: 1px solid var(--line);
  padding: 8px 20px 4px;
  box-shadow: var(--shadow-card);
}

.page-about .about-contact__line {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(42, 64, 91, 0.9);
}

.page-about .about-contact__line--last {
  border-bottom: 0;
}

.page-about .about-contact__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-slate);
}

.page-about .about-contact__value {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--cyan-soft);
  word-break: break-word;
}

/* ---------- next ---------- */
.page-about .about-section--last {
  padding-bottom: 58px;
}

.page-about .about-next {
  display: grid;
  gap: 12px;
}

.page-about .about-next__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  background: var(--warm-white);
  border: 1px solid rgba(17, 28, 43, 0.16);
  text-decoration: none;
  color: var(--text-on-light);
  transition: border-color var(--transition), transform var(--transition), background var(--transition);
}

.page-about .about-next__link:hover,
.page-about .about-next__link:focus-visible {
  border-color: var(--orange);
  background: var(--paper);
  transform: translateX(4px);
}

.page-about .about-next__link strong {
  display: block;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 4px;
}

.page-about .about-next__link em {
  display: block;
  font-style: normal;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted-slate);
}

.page-about .about-next__arrow {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--orange);
  flex: 0 0 auto;
}

.page-about .about-backtop {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid rgba(17, 28, 43, 0.14);
}

.page-about .about-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--text-on-light);
  background: transparent;
  border: 1px solid rgba(17, 28, 43, 0.32);
  padding: 10px 18px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.page-about .about-top:hover,
.page-about .about-top:focus-visible {
  background: var(--text-on-light);
  color: var(--paper);
  border-color: var(--text-on-light);
}

/* ---------- responsive ---------- */
@media (min-width: 640px) {
  .page-about .about-section {
    padding-block: 66px;
  }

  .page-about .about-hero__grid {
    padding-block: 40px 62px;
  }

  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-stat__num {
    font-size: 24px;
  }

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

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

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

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: 1.02fr 0.98fr;
    align-items: center;
    gap: 48px;
    padding-block: 56px 76px;
  }

  .page-about .about-hero .about-lede {
    font-size: 17px;
  }

  .page-about .about-split {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 48px;
    align-items: start;
  }

  .page-about .about-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    padding-bottom: 26px;
  }

  .page-about .about-scene:nth-child(2) {
    margin-top: 26px;
  }

  .page-about .about-scene:nth-child(3) {
    margin-top: 12px;
  }

  .page-about .about-team__grid {
    grid-template-columns: 0.84fr 1.16fr;
    gap: 44px;
    align-items: start;
  }

  .page-about .about-version {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-about .about-axis {
    position: sticky;
    top: 104px;
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-axis__title {
    display: block;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--muted-slate);
    margin: 12px 0 6px;
  }

  .page-about .about-axis__link {
    min-width: 0;
    padding: 12px 0 12px 16px;
  }

  .page-about .about-nodes {
    gap: 18px;
  }

  .page-about .about-node {
    padding: 24px 26px;
  }

  .page-about .about-contact {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 44px;
    align-items: start;
  }

  .page-about .about-partner {
    padding: 24px 22px;
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero__stats {
    gap: 18px;
  }

  .page-about .about-stat__num {
    font-size: 28px;
  }

  .page-about .about-node h3 {
    font-size: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-scene,
  .page-about .about-next__link,
  .page-about .about-flow__step p,
  .page-about .about-top,
  .page-about .about-axis__link {
    transition: none;
  }

  .page-about .about-next__link:hover {
    transform: none;
  }
}