.page-about {
  --about-max: 1180px;
  --about-gap: clamp(52px, 8vw, 104px);
  --about-radius: 2px;
  background: var(--deep);
  color: var(--silver);
  font-family: var(--font-sans);
  line-height: 1.75;
  overflow-x: clip;
  padding-bottom: var(--about-gap);
}

.page-about .about-wrap {
  width: 100%;
  max-width: var(--about-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* ---------- hero ---------- */

.page-about .about-hero {
  position: relative;
  padding-block: clamp(22px, 3.4vw, 40px) clamp(38px, 6vw, 72px);
  isolation: isolate;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 68%;
  background: linear-gradient(128deg, var(--deep-2) 0%, rgba(18, 42, 92, 0) 74%);
  clip-path: polygon(0 0, 100% 0, 100% 82%, 0 100%);
  z-index: -1;
  pointer-events: none;
}

.page-about .about-hero .crumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(24px, 3.6vw, 44px);
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
}

.page-about .about-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-about .about-kicker::before {
  content: "";
  width: 30px;
  height: 2px;
  background: var(--orange);
  flex: none;
}

.page-about .about-hero h1 {
  margin: 0 0 20px;
  font-size: clamp(38px, 6.6vw, 88px);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.page-about .about-hero .lede {
  max-width: 58ch;
  margin: 0;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.85;
  color: var(--silver);
}

.page-about .about-hero__facts {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(26px, 3.4vw, 38px) 0 0;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--about-radius);
}

.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 16px 16px;
  background: rgba(10, 18, 48, 0.82);
}

.page-about .about-hero__facts b {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 500;
  line-height: 1.2;
  color: var(--orange);
  letter-spacing: -0.01em;
}

.page-about .about-hero__facts span {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--silver-dim);
}

.page-about .about-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--about-radius);
  background: var(--deep-2);
  overflow: hidden;
}

.page-about .about-hero__media::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 68px;
  height: 4px;
  background: var(--orange);
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

.page-about .about-hero__media figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--silver-dim);
}

/* ---------- toc ---------- */

.page-about .about-toc {
  position: relative;
  z-index: 1;
  margin-top: clamp(34px, 5vw, 58px);
}

.page-about .about-toc ol {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--line);
  border-block: 1px solid var(--line);
}

.page-about .about-toc a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 14px 16px;
  background: rgba(10, 18, 48, 0.9);
  border-left: 2px solid transparent;
  color: var(--silver);
  text-decoration: none;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease),
    transform 0.25s var(--ease);
}

.page-about .about-toc a:hover {
  border-left-color: var(--orange);
  background: rgba(47, 107, 255, 0.16);
  transform: translateX(3px);
}

.page-about .about-toc a:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
  border-left-color: var(--orange);
}

.page-about .about-toc__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .about-toc__label {
  font-size: 14px;
  letter-spacing: 0.02em;
}

/* ---------- chapter shell ---------- */

.page-about .about-chapter {
  position: relative;
  padding-block: clamp(48px, 7vw, 92px);
  border-top: 1px solid var(--line);
}

.page-about .about-chapter--tint::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18, 42, 92, 0.82) 0%, rgba(18, 42, 92, 0.18) 100%);
  clip-path: polygon(0 0, 100% 1.8%, 100% 100%, 0 100%);
  z-index: 0;
  pointer-events: none;
}

.page-about .about-chapter > .about-wrap {
  position: relative;
  z-index: 1;
}

.page-about .about-chead {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: clamp(28px, 4vw, 48px);
  padding-left: clamp(14px, 2vw, 22px);
  border-left: 3px solid var(--orange);
}

.page-about .about-chead__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-about .about-chead__title {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: #ffffff;
}

.page-about .about-chead__sub {
  max-width: 62ch;
  margin: 4px 0 0;
  font-size: clamp(14px, 1.4vw, 16px);
  line-height: 1.82;
  color: var(--silver-dim);
}

/* ---------- 01 origin ---------- */

.page-about .about-origin {
  position: relative;
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-track {
  list-style: none;
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
  margin: 0;
  padding: 0 0 0 clamp(20px, 3vw, 34px);
  border-left: 1px solid var(--line-strong);
}

.page-about .about-track__item {
  position: relative;
  display: grid;
  gap: 6px;
  transition: transform 0.25s var(--ease);
}

.page-about .about-track__item:hover,
.page-about .about-track__item:focus-visible {
  transform: translateX(4px);
  outline: none;
}

.page-about .about-track__item:focus-visible .about-track__title {
  color: var(--orange-soft);
}

.page-about .about-track__dot {
  position: absolute;
  left: calc(-1 * clamp(20px, 3vw, 34px) - 5px);
  top: 8px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--orange);
  border-radius: 50%;
  background: var(--deep);
  transition: background-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .about-track__item:hover .about-track__dot,
.page-about .about-track__item:focus-visible .about-track__dot {
  background: var(--orange);
  box-shadow: 0 0 0 5px rgba(255, 107, 44, 0.16);
}

.page-about .about-track__year {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-about .about-track__title {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  line-height: 1.4;
  color: #ffffff;
}

.page-about .about-track__text {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--silver-dim);
}

.page-about .about-spark {
  display: block;
  width: 100%;
  height: 120px;
  opacity: 0.85;
}

/* ---------- 02 standards ---------- */

.page-about .about-flow {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 0 0 clamp(30px, 4vw, 50px);
  padding: 0;
}

.page-about .about-flow__item {
  position: relative;
  padding: 16px 16px 20px;
  border: 1px solid var(--line-strong);
  border-radius: var(--about-radius);
  background: rgba(18, 42, 92, 0.5);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease),
    background-color 0.25s var(--ease);
}

.page-about .about-flow__item::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--orange);
  transition: width 0.3s var(--ease);
}

.page-about .about-flow__item:hover {
  transform: translateY(-3px);
  border-color: var(--orange);
  background: rgba(18, 42, 92, 0.9);
}

.page-about .about-flow__item:hover::after {
  width: 100%;
}

.page-about .about-flow__idx {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-about .about-flow__name {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
}

.page-about .about-flow__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--silver-dim);
}

.page-about .about-standard {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-standard__media {
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--about-radius);
  background: var(--deep-2);
  overflow: hidden;
}

.page-about .about-standard__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-about .about-standard__media figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--silver-dim);
}

.page-about .about-ranking__title {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 700;
  color: #ffffff;
}

.page-about .about-ranking__intro {
  margin: 0 0 20px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--silver-dim);
}

.page-about .about-ranking__card {
  position: relative;
  padding: 16px 16px 18px 62px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.page-about .about-ranking__card:hover {
  background: rgba(47, 107, 255, 0.12);
  padding-left: 70px;
}

.page-about .about-ranking__num {
  position: absolute;
  left: 12px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 500;
  color: rgba(255, 107, 44, 0.7);
}

.page-about .about-ranking__name {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
}

.page-about .about-ranking__desc {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--silver-dim);
}

/* ---------- 03 team ---------- */

.page-about .about-team {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-team__stat {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line-strong);
  border-radius: var(--about-radius);
  background: linear-gradient(160deg, rgba(47, 107, 255, 0.24), rgba(10, 18, 48, 0.2));
  overflow: hidden;
}

.page-about .about-team__stat::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--orange));
}

.page-about .about-team__stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(52px, 8vw, 84px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #ffffff;
}

.page-about .about-team__stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-about .about-team__stat-text {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--silver-dim);
}

.page-about .about-team__list {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--about-radius);
}

.page-about .about-team__item {
  padding: 18px 18px 20px;
  background: rgba(10, 18, 48, 0.88);
  transition: background-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .about-team__item:hover {
  background: rgba(18, 42, 92, 0.95);
  box-shadow: inset 3px 0 0 var(--orange);
}

.page-about .about-team__role {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
}

.page-about .about-team__duty {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver-dim);
}

/* ---------- 04 atlas ---------- */

.page-about .about-atlas {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1px;
  margin: 0 0 clamp(26px, 3.6vw, 44px);
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--about-radius);
}

.page-about .about-atlas__cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 14px 18px;
  background: rgba(10, 18, 48, 0.9);
  transition: background-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-about .about-atlas__cell::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0.18);
  transform-origin: left;
  transition: transform 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-about .about-atlas__cell:hover,
.page-about .about-atlas__cell:focus-visible {
  background: rgba(18, 42, 92, 0.98);
  transform: translateY(-3px);
  outline: none;
}

.page-about .about-atlas__cell:hover::before,
.page-about .about-atlas__cell:focus-visible::before {
  transform: scaleX(1);
  background: var(--orange);
}

.page-about .about-atlas__code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--silver-dim);
}

.page-about .about-atlas__name {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
}

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

.page-about .about-atlas__tags li {
  padding: 3px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--silver-dim);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-atlas__cell:hover .about-atlas__tags li,
.page-about .about-atlas__cell:focus-visible .about-atlas__tags li {
  color: var(--orange-soft);
  border-color: rgba(255, 107, 44, 0.5);
}

.page-about .about-atlas__media {
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--about-radius);
  background: var(--deep-2);
  overflow: hidden;
}

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

.page-about .about-atlas__media figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--silver-dim);
}

/* ---------- 05 versions ---------- */

.page-about .about-log {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--about-radius);
}

.page-about .about-log__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 18px 18px 20px;
  background: rgba(10, 18, 48, 0.9);
  transition: background-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .about-log__row:hover {
  background: rgba(18, 42, 92, 0.96);
  box-shadow: inset 3px 0 0 var(--blue);
}

.page-about .about-log__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-about .about-log__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--silver);
}

.page-about .about-log__val {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: #ffffff;
}

/* ---------- 06 partners ---------- */

.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 22px);
  margin-bottom: clamp(34px, 5vw, 56px);
}

.page-about .about-partners__card {
  position: relative;
  padding: clamp(20px, 2.8vw, 28px);
  border: 1px solid var(--line-strong);
  border-radius: var(--about-radius);
  background: rgba(10, 18, 48, 0.72);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-partners__card:hover {
  transform: translateY(-4px);
  border-color: var(--orange);
}

.page-about .about-partners__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--orange);
}

.page-about .about-partners__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
}

.page-about .about-partners__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--silver-dim);
}

.page-about .about-cta {
  display: grid;
  gap: 18px;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line-strong);
  border-radius: var(--about-radius);
  background: linear-gradient(120deg, rgba(47, 107, 255, 0.22), rgba(255, 107, 44, 0.12));
}

.page-about .about-cta__text {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.82;
  color: var(--silver);
}

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

/* ---------- responsive ---------- */

@media (min-width: 640px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

  .page-about .about-log__row {
    grid-template-columns: 120px minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-about .about-toc ol {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-about .about-flow {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-about .about-origin {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: center;
  }

  .page-about .about-standard {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: start;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 0.68fr) minmax(0, 1.32fr);
    align-items: start;
  }

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

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

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

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .page-about .about-toc a:hover,
  .page-about .about-flow__item:hover,
  .page-about .about-atlas__cell:hover,
  .page-about .about-partners__card:hover,
  .page-about .about-track__item:hover {
    transform: none;
  }
}
<<<END>>>