.page-about {
  --about-edge: clamp(18px, 4vw, 48px);
  --about-wide: 1180px;
  --about-rule: 1px solid var(--line-ink);
  --about-rule-light: 1px solid var(--line-light);
  display: block;
  background-color: var(--paper);
  background-image: repeating-linear-gradient(
    to right,
    rgba(14, 27, 44, 0.035) 0 1px,
    transparent 1px 96px
  );
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

.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(32px, 5.4vw, 64px);
  line-height: 1.06;
  max-width: 24ch;
}

.page-about h2 {
  font-size: clamp(23px, 3.1vw, 38px);
  line-height: 1.18;
  max-width: 26ch;
  margin-top: 12px;
}

.page-about h3 {
  font-size: 19px;
  line-height: 1.35;
  font-weight: 700;
}

.page-about .about-inner {
  width: 100%;
  max-width: var(--about-wide);
  margin-inline: auto;
  padding-inline: var(--about-edge);
}

.page-about .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
  text-transform: uppercase;
}

.page-about .eyebrow--light {
  color: var(--gold-hi);
}

.page-about .about-p {
  margin: 16px 0 0;
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.82;
  color: var(--ink);
}

.page-about .about-p--lead {
  font-size: 17px;
  color: rgba(14, 27, 44, 0.86);
}

.page-about .about-p--muted {
  font-size: 14px;
  color: var(--graphite);
  margin-top: 12px;
}

.page-about .about-sub {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--graphite);
  text-transform: uppercase;
  padding-bottom: 10px;
  border-bottom: var(--about-rule);
}

.page-about .about-inline-link {
  color: var(--gold-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--gold);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  border-bottom: var(--about-rule);
  background: linear-gradient(180deg, rgba(228, 218, 198, 0.42), rgba(244, 239, 227, 0));
}

.page-about .about-crumbs {
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

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

.page-about .about-crumbs a:hover,
.page-about .about-crumbs a:focus-visible {
  color: var(--gold-deep);
}

.page-about .about-hero__head {
  padding-top: clamp(24px, 4vw, 52px);
}

.page-about .about-hero__head h1 {
  margin-top: 14px;
}

.page-about .about-hero__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.4vw, 48px);
  padding-block: clamp(26px, 3.4vw, 44px) clamp(34px, 5vw, 70px);
}

.page-about .about-lead {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(16.5px, 1.5vw, 20px);
  line-height: 1.78;
  color: rgba(14, 27, 44, 0.9);
}

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

.page-about .about-facts {
  margin: 0;
  border-top: var(--about-rule);
}

.page-about .about-facts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: var(--about-rule);
}

.page-about .about-facts dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--graphite);
}

.page-about .about-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

/* ---------- 通用分区 ---------- */

.page-about .about-sec {
  padding-block: clamp(42px, 5.6vw, 88px);
}

.page-about .about-figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  border: var(--about-rule);
  background: var(--ink-2);
}

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

.page-about .about-figure--3x2 {
  aspect-ratio: 3 / 2;
}

.page-about .about-figure--4x3 {
  aspect-ratio: 4 / 3;
}

.page-about .about-figure--16x9 {
  aspect-ratio: 16 / 9;
}

.page-about .about-figure figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: rgba(247, 250, 252, 0.86);
  background: linear-gradient(180deg, rgba(14, 27, 44, 0), rgba(14, 27, 44, 0.86));
}

/* ---------- 缘起 ---------- */

.page-about .about-origin {
  border-bottom: var(--about-rule);
}

.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.6vw, 52px);
  align-items: start;
}

.page-about .about-origin__list {
  list-style: none;
  margin: clamp(22px, 2.8vw, 34px) 0 0;
  padding: 0;
  border-top: var(--about-rule);
}

.page-about .about-origin__list li {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: var(--about-rule);
  font-size: 14.5px;
  color: var(--graphite);
}

.page-about .about-origin__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--gold-deep);
  line-height: 1.2;
}

/* ---------- 原则 ---------- */

.page-about .about-principles-sec {
  border-bottom: var(--about-rule);
}

.page-about .about-principles {
  list-style: none;
  margin: clamp(26px, 3.2vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-ink);
  border-block: var(--about-rule);
}

.page-about .about-principle {
  position: relative;
  background: var(--paper);
  padding: clamp(20px, 2.4vw, 30px);
  transition: background var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
}

.page-about .about-principle::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--gold);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform var(--t-mid);
}

.page-about .about-principle:hover::before,
.page-about .about-principle:focus-within::before {
  transform: scaleY(1);
}

.page-about .about-principle:hover,
.page-about .about-principle:focus-within {
  background: rgba(228, 218, 198, 0.55);
  box-shadow: 0 14px 30px -26px rgba(14, 27, 44, 0.9);
}

.page-about .about-principle__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
  margin-bottom: 14px;
}

.page-about .about-principle h3 {
  font-size: 20px;
}

.page-about .about-principle .about-p {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.78;
}

.page-about .about-principle__scene {
  margin: 18px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-gold);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--graphite);
}

/* ---------- 坐标确认 ---------- */

.page-about .about-coord {
  background: var(--ink);
  color: var(--white);
  background-image:
    repeating-linear-gradient(to right, rgba(247, 250, 252, 0.05) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(to bottom, rgba(247, 250, 252, 0.05) 0 1px, transparent 1px 96px);
}

.page-about .about-coord__inner {
  padding-block: clamp(42px, 5.6vw, 88px);
}

.page-about .about-coord__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.4vw, 52px);
  align-items: start;
}

.page-about .about-coord h2 {
  color: var(--white);
  max-width: 22ch;
}

.page-about .about-coord__lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(247, 250, 252, 0.8);
}

.page-about .about-coord .about-inline-link {
  color: var(--gold-hi);
  border-bottom-color: rgba(227, 193, 90, 0.55);
}

.page-about .about-coord .about-inline-link:hover,
.page-about .about-coord .about-inline-link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--gold-hi);
}

.page-about .about-check {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--about-rule-light);
}

.page-about .about-check li {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-bottom: var(--about-rule-light);
}

.page-about .about-check__dot {
  width: 9px;
  height: 9px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.22);
}

.page-about .about-check h3 {
  font-size: 17px;
  color: var(--white);
  letter-spacing: 0.02em;
}

.page-about .about-check p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(247, 250, 252, 0.72);
}

/* ---------- 团队 ---------- */

.page-about .about-team {
  border-bottom: var(--about-rule);
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.6vw, 52px);
  margin-top: clamp(26px, 3.2vw, 42px);
  align-items: start;
}

.page-about .about-bars {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-bar {
  display: grid;
  gap: 7px;
}

.page-about .about-bar__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--graphite);
}

.page-about .about-bar__val {
  color: var(--gold-deep);
  font-weight: 600;
}

.page-about .about-bar__track {
  display: block;
  height: 8px;
  background: var(--paper-2);
  overflow: hidden;
}

.page-about .about-bar__fill {
  display: block;
  height: 100%;
  background: var(--ink-2);
}

.page-about .about-bar:hover .about-bar__fill {
  background: var(--ink);
}

.page-about .about-flow {
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .about-flow__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-flow__list li {
  position: relative;
  padding: 6px 12px 6px 26px;
  border: 1px solid var(--line-ink-strong);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: rgba(247, 250, 252, 0.6);
}

.page-about .about-flow__list li::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
}

.page-about .about-ops {
  list-style: none;
  margin: clamp(24px, 3vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-ink);
  border: var(--about-rule);
}

.page-about .about-ops li {
  background: var(--paper);
  padding: 16px 18px;
  display: grid;
  gap: 6px;
}

.page-about .about-ops__num {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--gold-deep);
}

.page-about .about-ops__txt {
  font-size: 14px;
  line-height: 1.72;
  color: var(--graphite);
}

/* ---------- 发展节点与合作 ---------- */

.page-about .about-log {
  border-bottom: var(--about-rule);
}

.page-about .about-log__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 3.8vw, 56px);
  margin-top: clamp(26px, 3.2vw, 44px);
  align-items: start;
}

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

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--line-ink-strong);
}

.page-about .about-timeline li {
  position: relative;
  padding: 0 0 clamp(18px, 2.4vw, 28px) 30px;
}

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

.page-about .about-timeline li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px var(--paper);
}

.page-about .about-timeline li:hover::before {
  background: var(--gold-hi);
  box-shadow: 0 0 0 3px var(--paper), 0 0 0 6px rgba(201, 162, 39, 0.2);
}

.page-about .about-timeline__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
  font-weight: 600;
}

.page-about .about-timeline p {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink);
}

.page-about .about-eco p {
  margin: 16px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 60ch;
}

.page-about .about-legend {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-ink);
  border: var(--about-rule);
}

.page-about .about-legend li {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 4px 12px;
  align-items: baseline;
  background: var(--paper);
  padding: 14px 16px;
}

.page-about .about-legend__key {
  width: 10px;
  height: 10px;
  border: 1px solid var(--gold);
  background: rgba(201, 162, 39, 0.28);
  transform: translateY(-1px);
}

.page-about .about-legend strong {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
}

.page-about .about-legend span:last-child {
  grid-column: 2;
  font-size: 13px;
  color: var(--graphite);
  line-height: 1.6;
}

.page-about .about-cert {
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .about-cert .tag {
  margin: 14px 8px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* ---------- 区域实践 ---------- */

.page-about .about-region__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.6vw, 52px);
  align-items: start;
}

.page-about .about-region__list {
  list-style: none;
  margin: clamp(22px, 2.8vw, 32px) 0 0;
  padding: 0;
  border-top: var(--about-rule);
}

.page-about .about-region__list li {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 14px;
  padding: 12px 0;
  border-bottom: var(--about-rule);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink);
}

.page-about .about-region__list span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-about .about-principles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-about .about-hero__body {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
  }

  .page-about .about-coord__grid {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-about .about-log__grid {
    grid-template-columns: minmax(0, 0.56fr) minmax(0, 1fr);
  }

  .page-about .about-timeline {
    position: sticky;
    top: 24px;
  }

  .page-about .about-region__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }
}

@media (min-width: 1180px) {
  .page-about .about-principles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-principle,
  .page-about .about-principle::before,
  .page-about .about-inline-link {
    transition: none;
  }

  .page-about .about-principle:hover,
  .page-about .about-principle:focus-within {
    box-shadow: none;
  }
}
<<<PAGE_CSS_END>>>