.page-about {
  --about-hair: rgba(30, 51, 80, .62);
  --about-tianshan: var(--c-tianshan);
  --about-pad: clamp(40px, 7vw, 88px);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-about .breadcrumbs {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(18px, 3vw, 32px) 0 clamp(36px, 6vw, 72px);
  border-bottom: 1px solid var(--about-hair);
  background:
    radial-gradient(115% 90% at 6% 0%, rgba(139, 92, 255, .17), transparent 62%),
    radial-gradient(85% 80% at 94% 16%, rgba(56, 242, 228, .11), transparent 60%);
}

.page-about .about-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .about-hero__eyebrow {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-tianshan);
}

.page-about .about-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 7.5vw, 76px);
  line-height: 1.02;
  letter-spacing: -.01em;
  color: var(--c-text);
}

.page-about .about-hero__title span {
  display: block;
  margin-top: 12px;
  font-size: clamp(19px, 3.2vw, 30px);
  font-weight: 600;
  line-height: 1.3;
  color: var(--c-cyan);
}

.page-about .about-hero__intro {
  max-width: 62ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-muted);
}

.page-about .about-hero__facts {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-left: 14px;
  border-left: 2px solid var(--c-grid);
}

.page-about .about-hero__fact-k {
  flex: none;
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-hero__fact-v {
  font-size: 14px;
  line-height: 1.5;
  color: var(--c-muted);
}

/* ---------- Chapter frame ---------- */
.page-about .about-chapter {
  padding: var(--about-pad) 0 0;
}

.page-about .about-chapter__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-about .about-chapter__num {
  display: block;
  font-size: clamp(30px, 4.4vw, 46px);
  line-height: 1;
  letter-spacing: .06em;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-chapter__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1.22;
  color: var(--c-text);
}

.page-about .about-chapter__title::after {
  content: "";
  display: block;
  width: 54px;
  height: 2px;
  margin-top: 16px;
  background: linear-gradient(90deg, var(--c-cyan), rgba(56, 242, 228, 0));
}

.page-about .about-chapter__body p {
  max-width: 64ch;
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-muted);
}

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

.page-about .about-figure {
  margin: clamp(26px, 4vw, 46px) auto 0;
}

/* ---------- Timeline ---------- */
.page-about .about-timeline {
  margin: 30px 0 0;
  padding: 0 0 0 22px;
  list-style: none;
  border-left: 1px solid var(--c-grid);
  display: grid;
  gap: 20px;
}

.page-about .about-timeline li {
  position: relative;
}

.page-about .about-timeline li::before {
  content: "";
  position: absolute;
  left: -27px;
  top: .5em;
  width: 9px;
  height: 9px;
  background: var(--c-void);
  border: 1px solid var(--c-cyan);
  transform: rotate(45deg);
}

.page-about .about-timeline__node {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-violet);
}

.page-about .about-timeline__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* ---------- Audience ---------- */
.page-about .about-audience {
  display: grid;
  gap: 18px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-audience__item {
  padding: 20px 20px 22px;
  background: var(--c-panel-soft);
  border: 1px solid var(--about-hair);
  border-left-width: 3px;
}

.page-about .about-audience__item--cyan {
  border-left-color: var(--c-cyan);
}

.page-about .about-audience__item--violet {
  border-left-color: var(--c-violet);
}

.page-about .about-audience__item--orange {
  border-left-color: var(--c-orange);
}

.page-about .about-audience__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--c-text);
}

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

/* ---------- Roles / method ---------- */
.page-about .about-roles {
  display: grid;
  gap: 22px;
  margin: 26px 0 24px;
  padding: 0;
  list-style: none;
}

.page-about .about-roles li {
  padding-top: 16px;
  border-top: 1px solid var(--about-hair);
}

.page-about .about-roles__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-text);
}

.page-about .about-roles__title::before {
  content: "▍";
  color: var(--c-cyan);
  margin-right: 6px;
}

.page-about .about-roles li p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-about .about-note {
  margin: 0;
  padding: 16px 18px;
  border-left: 2px solid var(--c-amber);
  background: rgba(255, 181, 71, .06);
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- Region ---------- */
.page-about .about-chapter--region {
  background: linear-gradient(180deg, rgba(90, 167, 200, .07), rgba(90, 167, 200, 0) 72%);
}

.page-about .about-chapter--region .about-chapter__num {
  color: var(--about-tianshan);
}

.page-about .about-chapter--region .about-chapter__title::after {
  background: linear-gradient(90deg, var(--about-tianshan), rgba(90, 167, 200, 0));
}

.page-about .about-facts {
  display: grid;
  gap: 1px;
  margin-top: 24px;
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
}

.page-about .about-fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 18px 20px;
  background: var(--c-panel);
}

.page-about .about-fact__k {
  font-size: 26px;
  line-height: 1;
  color: var(--about-tianshan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-fact__v {
  font-size: 13px;
  line-height: 1.5;
  color: var(--c-muted);
}

/* ---------- Partner network ---------- */
.page-about .about-net {
  margin-top: 26px;
  padding: 18px 16px 20px;
  border: 1px solid var(--about-hair);
  background:
    linear-gradient(rgba(13, 26, 47, .9), rgba(7, 16, 31, .9)),
    repeating-linear-gradient(0deg, rgba(30, 51, 80, .5) 0 1px, transparent 1px 36px);
}

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

.page-about .about-net__links line {
  stroke: rgba(56, 242, 228, .26);
  stroke-width: 1;
}

.page-about .about-net__node rect {
  fill: var(--c-panel);
  stroke: var(--c-grid);
  stroke-width: 1;
}

.page-about .about-net__node text {
  fill: var(--c-muted);
  font-family: var(--font-body);
  font-size: 13px;
  text-anchor: middle;
}

.page-about .about-net__node--hub rect {
  fill: rgba(56, 242, 228, .1);
  stroke: var(--c-cyan);
}

.page-about .about-net__node--hub text {
  fill: var(--c-text);
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: .04em;
}

.page-about .about-net__node--sm text {
  font-size: 12px;
}

.page-about .about-net__node:hover rect {
  stroke: var(--c-cyan);
}

.page-about .about-net__legend {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-net__legend li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-muted);
}

.page-about .about-net__dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: .5em;
}

.page-about .about-net__dot--cyan {
  background: var(--c-cyan);
}

.page-about .about-net__dot--violet {
  background: var(--c-violet);
}

.page-about .about-net__dot--orange {
  background: var(--c-orange);
}

/* ---------- Team disclosures ---------- */
.page-about .about-team {
  display: grid;
  gap: 10px;
  margin-top: 26px;
  border-top: 1px solid var(--about-hair);
  padding-top: 20px;
}

.page-about .about-team .disclosure {
  border: 1px solid var(--about-hair);
  background: var(--c-panel-soft);
}

.page-about .about-team .disclosure__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 18px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--c-text);
}

.page-about .about-team .disclosure__trigger::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--c-cyan);
}

.page-about .about-team .disclosure__trigger[aria-expanded="true"]::after {
  content: "−";
}

.page-about .about-team .disclosure__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-muted);
}

/* ---------- Pledge ---------- */
.page-about .about-pledge {
  padding: var(--about-pad) 0 0;
}

.page-about .about-pledge__head {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--about-hair);
}

.page-about .about-pledge__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1.22;
  color: var(--c-text);
}

.page-about .about-pledge__list {
  display: grid;
  gap: 24px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-pledge__list li {
  padding-left: 16px;
  border-left: 2px solid var(--c-violet);
}

.page-about .about-pledge__list h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--c-cyan);
}

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

/* ---------- CTA ---------- */
.page-about .about-cta {
  padding-top: var(--about-pad);
}

.page-about .about-cta__inner {
  display: grid;
  gap: 24px;
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--about-hair);
  background:
    linear-gradient(115deg, rgba(139, 92, 255, .16), rgba(7, 16, 31, .2) 55%, rgba(56, 242, 228, .12));
}

.page-about .about-cta__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 700;
  line-height: 1.22;
  color: var(--c-text);
}

.page-about .about-cta__text p {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

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

/* ---------- Media queries ---------- */
@media (min-width: 640px) {
  .page-about .about-facts {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-net__legend {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  .page-about .about-pledge__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(230px, 3fr);
    align-items: end;
  }

  .page-about .about-chapter__grid {
    grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
    gap: clamp(32px, 6vw, 80px);
  }

  .page-about .about-chapter__aside {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

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

  .page-about .about-roles {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

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

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

  .page-about .about-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1100px) {
  .page-about .about-hero__intro {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-net__node rect {
    transition: none;
  }
}