.page-about {
  --about-pad-block: clamp(44px, 7vw, 88px);
  --about-ink-soft: rgba(11, 13, 16, 0.72);
  --about-ink-faint: rgba(11, 13, 16, 0.55);
  background: var(--ink);
  color: var(--fg);
  font-family: var(--font-sans);
  line-height: 1.75;
}

.page-about a:focus-visible,
.page-about .btn:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  border-bottom: var(--rule-thick) solid var(--red);
  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(90deg, rgba(245, 239, 227, 0.07) 0 1px, transparent 1px 82px),
    linear-gradient(180deg, rgba(122, 10, 28, 0.32), transparent 62%);
}

.page-about .about-hero__inner {
  padding-top: clamp(22px, 4vw, 38px);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-about .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(22px, 4vw, 34px);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.1em;
  color: var(--fg-dim);
}

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

.page-about .breadcrumbs a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-about .about-hero__lead h1 {
  margin: 14px 0 22px;
  font-family: var(--font-condensed);
  font-size: var(--fs-h1);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--white);
  text-wrap: balance;
}

.page-about .about-hero__lede {
  margin: 0 0 16px;
  padding-left: 18px;
  border-left: var(--rule-thick) solid var(--red);
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.7;
  color: var(--fg);
  max-width: 62ch;
}

.page-about .about-hero__sub {
  margin: 0;
  max-width: 64ch;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--fg-dim);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero__index {
  padding: 16px 18px 18px;
  background: rgba(42, 45, 52, 0.6);
  border: var(--rule) solid var(--line-strong);
}

.page-about .about-hero__index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.16em;
  color: var(--acid);
}

.page-about .about-hero__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-hero__index-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0;
  font-size: var(--fs-small);
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-hero__index-list li:last-child a {
  border-bottom: 0;
}

.page-about .about-hero__index-list a:hover,
.page-about .about-hero__index-list a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-about .about-hero__index-list .num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--red);
}

/* ---------- 首屏关键数字 ---------- */
.page-about .about-facts {
  list-style: none;
  margin: clamp(30px, 5vw, 48px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-strong);
  border: var(--rule) solid var(--line-strong);
}

.page-about .about-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 16px 18px;
  background: var(--ink);
}

.page-about .about-facts__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.4vw, 40px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-about .about-facts__unit {
  margin-left: 2px;
  font-size: 0.46em;
  font-weight: 400;
  color: var(--acid);
}

.page-about .about-facts__label {
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  letter-spacing: 0.06em;
  color: var(--fg-dim);
}

/* ---------- 通用区块 ---------- */
.page-about .about-block {
  padding-block: var(--about-pad-block);
  border-bottom: var(--rule) solid var(--line);
}

.page-about .about-block--paper {
  background: var(--paper);
  color: var(--ink);
  border-top: var(--rule-thick) solid var(--ink);
  border-bottom: var(--rule-thick) solid var(--ink);
}

.page-about .about-block--paper .eyebrow {
  color: var(--red-deep);
}

.page-about h2 {
  margin: 0 0 18px;
  font-family: var(--font-condensed);
  font-size: var(--fs-h2);
  line-height: 1.16;
  letter-spacing: -0.005em;
  color: inherit;
  text-wrap: balance;
}

.page-about .about-prose {
  margin: 0 0 16px;
  max-width: 66ch;
  font-size: var(--fs-body);
  line-height: 1.8;
}

.page-about .about-section-head {
  display: grid;
  gap: 10px;
  max-width: 760px;
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-about .about-section-head__lede {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--fg-dim);
}

.page-about .about-block--paper .about-section-head__lede {
  color: var(--about-ink-soft);
}

.page-about .about-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  white-space: nowrap;
}

.page-about .about-block--paper .about-inline-link {
  color: var(--red);
}

/* ---------- 编辑部双栏 ---------- */
.page-about .about-editorial {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
}

.page-about .about-aside__no {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-about .about-block--paper .about-aside__no {
  color: var(--red-deep);
}

.page-about .about-aside__year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(34px, 6vw, 52px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

.page-about .about-block--paper .about-aside__year {
  color: var(--ink);
}

.page-about .about-aside__note {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  letter-spacing: 0.04em;
  line-height: 1.6;
}

.page-about .about-block--paper .about-aside__note {
  color: var(--about-ink-faint);
}

/* ---------- 图片与说明 ---------- */
.page-about .about-figure {
  margin: 28px 0 0;
  border: var(--rule) solid var(--ink);
  background: var(--white);
  box-shadow: var(--shadow-hard);
}

.page-about .about-figure--wide {
  margin-top: 26px;
}

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

.page-about .about-figure figcaption {
  padding: 10px 14px;
  border-top: var(--rule) solid var(--ink);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  letter-spacing: 0.03em;
  line-height: 1.6;
  color: var(--about-ink-soft);
}

/* ---------- 内容体系 ---------- */
.page-about .about-programmes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-programme {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 24px;
  background: var(--panel);
  border: var(--rule) solid var(--line-strong);
  border-top: var(--rule-thick) solid var(--red);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    border-top-color var(--dur) var(--ease);
}

.page-about .about-programme:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hard);
  border-top-color: var(--cyan);
}

.page-about .about-programme__cadence {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.12em;
  color: var(--acid);
}

.page-about .about-programme h3 {
  margin: 0;
  font-family: var(--font-condensed);
  font-size: 20px;
  line-height: 1.25;
  color: var(--white);
}

.page-about .about-programme p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.72;
  color: var(--fg-dim);
}

.page-about .about-content__note {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--fg-dim);
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-about .about-team__figure {
  position: relative;
  margin: 24px 0 0;
  overflow: hidden;
  border: var(--rule) solid var(--line-strong);
  box-shadow: var(--shadow-cyan);
}

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

.page-about .about-team__figure figcaption {
  padding: 10px 14px;
  border-top: var(--rule) solid var(--line-strong);
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  letter-spacing: 0.03em;
  color: var(--fg-dim);
}

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

.page-about .about-role {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 20px;
  background: var(--ink);
  border: var(--rule) solid var(--line-strong);
  border-left: var(--rule-thick) solid var(--cyan);
}

.page-about .about-role__count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-about .about-role__count span {
  margin-left: 4px;
  font-size: 12px;
  font-weight: 400;
  color: var(--fg-dim);
}

.page-about .about-role h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-about .about-role p {
  margin: 0;
  font-size: var(--fs-note);
  line-height: 1.66;
  color: var(--fg-dim);
}

/* ---------- 流程 ---------- */
.page-about .about-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-step {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px 22px;
  background: var(--white);
  border: var(--rule) solid var(--ink);
  border-left: var(--rule-thick) solid var(--red);
  box-shadow: var(--shadow-hard);
}

.page-about .about-step__no {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.16em;
  color: var(--red);
}

.page-about .about-step h3 {
  margin: 0;
  font-family: var(--font-condensed);
  font-size: 19px;
  line-height: 1.25;
  color: var(--ink);
}

.page-about .about-step p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.72;
  color: var(--about-ink-soft);
}

.page-about .about-note-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 24px 0 0;
  padding: 14px 16px;
  border-left: var(--rule-thick) solid var(--red);
  background: rgba(11, 13, 16, 0.06);
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  letter-spacing: 0.03em;
  line-height: 1.7;
  color: var(--about-ink-soft);
}

.page-about .about-note-strip span {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.page-about .about-note-strip span::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--red);
  flex: 0 0 auto;
  transform: translateY(-2px);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-about .about-partners__actions {
  margin-top: 24px;
}

.page-about .about-partner-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-about .about-partner-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px 20px;
  border: var(--rule) solid var(--line-strong);
  background-image: linear-gradient(160deg, rgba(200, 16, 46, 0.26), rgba(11, 13, 16, 0.92));
}

.page-about .about-partner-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(34px, 6vw, 52px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--acid);
}

.page-about .about-partner-stat__label {
  font-size: var(--fs-note);
  line-height: 1.65;
  color: var(--fg-dim);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
}

.page-about .about-timeline__item {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 0 0 26px 26px;
  border-left: 2px solid var(--paper-line);
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--paper);
  border: 3px solid var(--red);
  border-radius: 50%;
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--red-deep);
}

.page-about .about-timeline__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-condensed);
  font-size: 18px;
  line-height: 1.3;
  color: var(--ink);
}

.page-about .about-timeline__body p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.72;
  color: var(--about-ink-soft);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  padding-block: clamp(34px, 5vw, 60px);
  background: var(--red-deep);
  border-top: var(--rule-thick) solid var(--ink);
  border-bottom: var(--rule-thick) solid var(--ink);
  color: var(--white);
}

.page-about .about-cta__inner {
  display: grid;
  gap: 22px;
}

.page-about .about-cta h2 {
  margin: 0 0 10px;
  color: var(--white);
}

.page-about .about-cta__text p {
  margin: 0;
  max-width: 58ch;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
}

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

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-about .about-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-timeline__item {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }

  .page-about .about-timeline__year {
    padding-top: 2px;
  }
}

@media (min-width: 760px) {
  .page-about .about-programmes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

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

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }

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

@media (min-width: 820px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-editorial {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-editorial__aside {
    padding-right: 24px;
    border-right: 2px solid var(--paper-line);
  }

  .page-about .about-partners {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__grid {
    grid-template-columns: 236px minmax(0, 1fr);
    grid-template-areas: "index lead";
    gap: 56px;
    align-items: start;
  }

  .page-about .about-hero__index {
    grid-area: index;
  }

  .page-about .about-hero__lead {
    grid-area: lead;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 1200px) {
  .page-about .about-facts li {
    padding: 20px 22px 22px;
  }

  .page-about .about-programme {
    padding: 26px 24px 28px;
  }
}

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

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

  .page-about .about-hero__index-list a {
    transition: none;
  }
}
<<<END>>>