.page-about {
  --about-gap: clamp(24px, 3.4vw, 44px);
  --about-soft: rgba(16, 36, 58, .07);
}

/* ---------- hero ---------- */
.page-about .about-hero {
  padding: clamp(28px, 4vw, 56px) 0 clamp(40px, 6vw, 84px);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--navy);
  margin: 14px 0 0;
  max-width: 18em;
}

.page-about .about-hero__lead .lede {
  margin-top: 20px;
  max-width: 42em;
  color: var(--ink);
}

.page-about .about-hero__aside {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-about .about-fact {
  background: var(--white);
  padding: 18px 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .about-fact__label {
  font-size: 13px;
  color: var(--gray);
  letter-spacing: .02em;
}

.page-about .about-fact__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 26px);
  color: var(--navy);
  line-height: 1.1;
}

.page-about .about-fact--core {
  background: var(--navy);
}

.page-about .about-fact--core .about-fact__label {
  color: var(--text-inv-dim);
}

.page-about .about-fact--core .about-fact__value {
  color: var(--gold-soft);
}

/* ---------- chapter head local tweaks ---------- */
.page-about .chapter-head__no {
  color: var(--gold);
}

.page-about .about-network__head .chapter-head__no {
  color: var(--gold-soft);
}

.page-about .about-network__head .chapter-head__title {
  color: var(--paper);
}

.page-about .about-network__head .chapter-head__time {
  color: var(--text-inv-dim);
}

/* ---------- 01 what ---------- */
.page-about .about-what__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
  margin-top: clamp(24px, 3.6vw, 48px);
}

.page-about .about-what__copy p {
  margin: 0 0 18px;
  max-width: 40em;
}

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

.page-about .about-what__who {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border-top: 2px solid var(--navy);
}

.page-about .about-who {
  background: var(--white);
  padding: 22px 20px;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 16px;
  row-gap: 6px;
}

.page-about .about-who__no {
  grid-row: span 2;
  font-size: 22px;
  color: var(--gold);
  line-height: 1.1;
}

.page-about .about-who h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: var(--navy);
  margin: 0;
}

.page-about .about-who p {
  margin: 0;
  font-size: 15px;
  color: var(--gray);
  line-height: 1.75;
}

/* ---------- 02 timeline ---------- */
.page-about .about-timeline__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
  margin-top: clamp(24px, 3.6vw, 48px);
}

.page-about .about-timeline__figure {
  margin: 0;
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--gold);
  opacity: .55;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 30px 30px;
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__mark {
  position: absolute;
  left: 0;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--gold);
}

.page-about .about-timeline__tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gray);
  border: 1px solid var(--line);
  padding: 3px 9px;
  margin-bottom: 10px;
}

.page-about .about-timeline__body h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--navy);
  margin: 0 0 8px;
}

.page-about .about-timeline__body p {
  margin: 0;
  max-width: 44em;
  color: var(--ink);
}

/* ---------- 03 rules ---------- */
.page-about .about-rules__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
  margin-top: clamp(24px, 3.6vw, 48px);
}

.page-about .about-rules__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .about-rule {
  background: var(--white);
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--gold);
  padding: 26px 24px 24px;
}

.page-about .about-rule__no {
  display: block;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--red);
  margin-bottom: 12px;
}

.page-about .about-rule h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  color: var(--navy);
  margin: 0 0 12px;
}

.page-about .about-rule p {
  margin: 0 0 14px;
  color: var(--ink);
}

.page-about .about-rule__meta {
  margin: 0;
  font-size: 13px;
  color: var(--gray);
  padding-top: 12px;
  border-top: 1px dashed var(--line-soft);
}

.page-about .about-rule__meta .mono {
  color: var(--teal);
  font-weight: 500;
}

.page-about .about-rules__side {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-about .about-rules__link {
  align-self: flex-start;
}

/* ---------- 04 categories ---------- */
.page-about .about-categories__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
  margin-top: clamp(24px, 3.6vw, 48px);
  align-items: center;
}

.page-about .about-categories__ring {
  position: relative;
  width: min(280px, 78%);
  margin: 0 auto;
}

.page-about .about-categories__ring svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-categories__center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.page-about .about-categories__num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 46px;
  line-height: 1;
  color: var(--navy);
  letter-spacing: -.03em;
}

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

.page-about .about-categories__copy p {
  margin: 0 0 16px;
  max-width: 40em;
}

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

.page-about .about-categories__figure {
  margin: 0;
}

/* ---------- 05 network ---------- */
.page-about .about-network__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
  margin-top: clamp(24px, 3.6vw, 48px);
}

.page-about .about-network__text p {
  margin: 0 0 16px;
  max-width: 38em;
  color: var(--text-inv);
}

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

.page-about .about-network__dots {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
  padding: 22px 0 6px;
  max-width: 420px;
}

.page-about .about-network__dot {
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: var(--text-inv-dim);
  opacity: .45;
}

.page-about .about-network__dot--core {
  background: var(--red);
  opacity: 1;
  box-shadow: 0 0 0 4px rgba(214, 58, 47, .18);
}

.page-about .about-network__legend {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 10px 0 26px;
  font-size: 13px;
  color: var(--text-inv-dim);
}

.page-about .about-network__legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--red);
  flex: none;
}

.page-about .about-network__figure {
  margin: 0;
}

.page-about .about-network__figure .media-caption {
  color: var(--text-inv-dim);
}

/* ---------- 06 partners ---------- */
.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  margin-top: clamp(24px, 3.6vw, 48px);
  border-top: 2px solid var(--navy);
}

.page-about .about-partner {
  background: var(--white);
  padding: 28px 24px 30px;
}

.page-about .about-partner h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  color: var(--navy);
  margin: 0 0 12px;
  padding-left: 14px;
  border-left: 3px solid var(--gold);
  line-height: 1.2;
}

.page-about .about-partner p {
  margin: 0;
  color: var(--ink);
}

.page-about .about-partners__foot {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
}

.page-about .about-partners__foot p {
  margin: 0;
  max-width: 46em;
  color: var(--gray);
  font-size: 15px;
}

/* ---------- 07 why ---------- */
.page-about .about-why__list {
  margin: clamp(24px, 3.6vw, 48px) 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-about .about-why__item {
  padding-left: 18px;
  border-left: 2px solid var(--gold-soft);
}

.page-about .about-why__item dt {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--navy);
  margin-bottom: 8px;
}

.page-about .about-why__item dd {
  margin: 0;
  color: var(--ink);
  max-width: 42em;
}

.page-about .about-why__foot {
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
}

.page-about .about-why__foot p {
  margin: 0;
  color: var(--gray);
}

.page-about .about-why__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- media ---------- */
.page-about .media-frame {
  background: var(--mist);
  overflow: hidden;
}

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

.page-about .media-caption {
  font-size: 13px;
  color: var(--gray);
  margin-top: 10px;
  max-width: 34em;
}

/* ---------- responsive ---------- */
@media (min-width: 760px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-about .about-what__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

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

  .page-about .about-rules__card:nth-child(2),
  .page-about .about-rule:nth-child(2),
  .page-about .about-rule:nth-child(4) {
    transform: translateY(26px);
  }

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

  .page-about .about-categories__figure {
    grid-column: 1 / -1;
  }

  .page-about .about-network__dots {
    grid-template-columns: repeat(13, 1fr);
    max-width: none;
  }

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

  .page-about .about-why__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px 40px;
  }

  .page-about .about-partners__foot,
  .page-about .about-why__foot {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 1040px) {
  .page-about .about-hero__aside {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-timeline__layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-about .about-rules__layout {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .about-network__layout {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }

  .page-about .about-categories__layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 4fr) minmax(0, 4fr);
  }
}
</｜｜DSML｜｜ parameter>
</invoke>