.page-about {
  --about-pad: clamp(56px, 9vw, 118px);
  --about-gap: clamp(20px, 3vw, 36px);
  color: var(--ink);
  background: var(--paper);
}

.page-about .sec-index {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--moss);
  margin: 0 0 14px;
}
.page-about .sec-index span {
  font-size: 13px;
  color: var(--kiwi-deep);
  border-bottom: 2px solid var(--kiwi);
  padding-bottom: 2px;
}
.page-about .sec-index-dark { color: var(--line-dark); }
.page-about .sec-index-dark span { color: var(--lime); border-bottom-color: var(--lime); }

.page-about .section-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(28px, 4.4vw, 48px);
  line-height: 1.16;
  letter-spacing: .005em;
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  max-width: 22em;
}
.page-about .section-title-lime { color: var(--paper); }

.page-about .about-section { padding-block: var(--about-pad); }
.page-about .about-section + .about-section { border-top: 1px solid var(--line); }

/* ---------- HERO ---------- */
.page-about .about-hero {
  padding-block: clamp(24px, 4vw, 48px) var(--about-pad);
  border-bottom: 1px solid var(--line);
}
.page-about .about-hero-grid {
  display: grid;
  gap: clamp(30px, 5vw, 64px);
}
.page-about .about-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(34px, 6.4vw, 76px);
  line-height: 1.04;
  letter-spacing: .01em;
  margin: 0 0 clamp(16px, 2.4vw, 26px);
}
.page-about .about-lead {
  font-size: clamp(16px, 1.2vw, 18px);
  line-height: 1.78;
  color: var(--moss);
  max-width: 34em;
  margin: 0 0 clamp(24px, 3vw, 34px);
}
.page-about .about-hero-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3vw, 40px);
  border-top: 1px solid var(--line);
  padding-top: clamp(16px, 2.4vw, 24px);
}
.page-about .about-hero-facts li { display: flex; flex-direction: column; gap: 4px; }
.page-about .fact-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1;
  color: var(--kiwi-deep);
}
.page-about .fact-lab {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--moss);
}

.page-about .about-hero-visual {
  position: relative;
  aspect-ratio: 5 / 4;
  border-radius: 50% 50% 8px 8px;
  background: radial-gradient(circle at 34% 26%, #14885f 0%, var(--kiwi-deep) 52%, #06442c 100%);
  overflow: hidden;
  box-shadow: var(--shadow-paper);
  isolation: isolate;
}
.page-about .hv-seed-field {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--lime) 2px, transparent 2.6px);
  background-size: 46px 46px;
  opacity: .34;
}
.page-about .hv-orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(198, 245, 60, .38);
}
.page-about .hv-orbit-a { inset: 14%; }
.page-about .hv-orbit-b {
  inset: 30%;
  border-style: dashed;
  border-color: rgba(247, 246, 241, .3);
}
.page-about .hv-label {
  position: absolute;
  left: clamp(14px, 3vw, 26px);
  bottom: clamp(14px, 3vw, 24px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--lime);
}

/* ---------- ORIGIN ---------- */
.page-about .about-origin-grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}
.page-about .about-origin-main p {
  font-size: 16px;
  line-height: 1.82;
  color: var(--moss);
  max-width: 34em;
  margin: 0 0 18px;
}
.page-about .about-origin-main p:first-of-type { color: var(--ink); }
.page-about .about-inline-links {
  font-size: 15px;
  border-left: 3px solid var(--kiwi);
  padding-left: 14px;
}
.page-about .about-inline-links a { color: var(--kiwi-deep); text-decoration: underline; text-underline-offset: 3px; }

.page-about .about-origin-aside {
  display: grid;
  gap: 16px;
}
.page-about .aside-card {
  background: var(--paper);
  border: 1px solid var(--line-strong);
  padding: clamp(16px, 2.4vw, 24px);
  margin: 0;
}
.page-about .aside-card-alt { background: var(--mist); border-color: var(--kiwi-deep); }
.page-about .aside-card-quiet { background: transparent; box-shadow: none; border-style: dashed; }
.page-about .aside-num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1;
  color: var(--kiwi-deep);
  margin: 0 0 6px;
}
.page-about .aside-num span {
  font-size: .42em;
  margin-left: 6px;
  letter-spacing: .04em;
  color: var(--moss);
}
.page-about .aside-cap {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--moss);
  margin: 0;
}
.page-about .aside-note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--moss);
  margin: 0;
}

/* ---------- COVERAGE ---------- */
.page-about .about-coverage { background: var(--mist); }
.page-about .cov-grid {
  display: grid;
  gap: 14px;
}
.page-about .cov-block {
  border: 1px solid var(--line-strong);
  background: var(--paper);
  padding: clamp(18px, 2.6vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.page-about .cov-b,
.page-about .cov-c { background: var(--ink); border-color: var(--ink); }
.page-about .cov-b .cov-num,
.page-about .cov-c .cov-num { color: var(--lime); }
.page-about .cov-b .cov-lab,
.page-about .cov-c .cov-lab { color: var(--paper); }
.page-about .cov-b .cov-note,
.page-about .cov-c .cov-note { color: rgba(247, 246, 241, .68); }
.page-about .cov-num {
  font-family: var(--font-mono);
  font-size: clamp(36px, 6vw, 68px);
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--kiwi-deep);
  margin: 0;
}
.page-about .cov-suffix,
.page-about .cov-unit {
  font-size: .36em;
  margin-left: 8px;
  letter-spacing: .06em;
  color: var(--moss);
}
.page-about .cov-b .cov-suffix,
.page-about .cov-b .cov-unit,
.page-about .cov-c .cov-suffix,
.page-about .cov-c .cov-unit { color: var(--lime); }
.page-about .cov-lab {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ink);
  margin: 0;
}
.page-about .cov-note {
  font-size: 14px;
  line-height: 1.68;
  color: var(--moss);
  margin: 0;
}
.page-about .cov-foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-strong);
  font-size: 14px;
  line-height: 1.7;
  color: var(--moss);
  max-width: 58em;
}

/* ---------- TEAM ---------- */
.page-about .about-team-grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}
.page-about .about-team-text p {
  font-size: 16px;
  line-height: 1.82;
  color: var(--moss);
  max-width: 34em;
  margin: 0 0 18px;
}
.page-about .about-team-figure {
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--mist);
  box-shadow: var(--shadow-paper);
  padding: 10px;
}
.page-about .about-team-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-team-figure figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .07em;
  color: var(--moss);
  padding: 10px 2px 2px;
}

/* ---------- TIMELINE ---------- */
.page-about .about-timeline {
  background: var(--ink);
  color: var(--paper);
}
.page-about .about-timeline .section-title { color: var(--paper); }
.page-about .about-timeline-figure {
  margin: 0 0 clamp(28px, 4vw, 48px);
  border: 1px solid var(--line-dark);
  background: rgba(247, 246, 241, .04);
}
.page-about .about-timeline-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-tl {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--lime), var(--kiwi) 45%, var(--kiwi-deep));
}
.page-about .tl-item {
  position: relative;
  padding-left: clamp(38px, 5vw, 60px);
  padding-bottom: 12px;
}
.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 16px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--kiwi);
  box-shadow: 0 0 0 4px rgba(198, 245, 60, .16);
}
.page-about .tl-det {
  border: 1px solid var(--line-dark);
  background: rgba(247, 246, 241, .035);
  transition: background 220ms var(--ease), border-color 220ms var(--ease);
}
.page-about .tl-det[open] {
  background: rgba(15, 157, 108, .1);
  border-color: rgba(198, 245, 60, .42);
}
.page-about .tl-sum {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px clamp(14px, 2vw, 20px);
}
.page-about .tl-sum::-webkit-details-marker { display: none; }
.page-about .tl-sum:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}
.page-about .tl-sum::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--lime);
}
.page-about .tl-det[open] .tl-sum::after { content: "−"; }
.page-about .tl-year {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.4vw, 28px);
  color: var(--lime);
  letter-spacing: -.01em;
}
.page-about .tl-name {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(17px, 1.7vw, 22px);
  letter-spacing: .02em;
  color: var(--paper);
}
.page-about .tl-body {
  padding: 0 clamp(14px, 2vw, 20px) 18px;
}
.page-about .tl-body p {
  font-size: 15px;
  line-height: 1.78;
  color: rgba(247, 246, 241, .76);
  max-width: 46em;
  margin: 0 0 10px;
}
.page-about .tl-gain {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .03em;
  color: var(--lime) !important;
  border-top: 1px solid var(--line-dark);
  padding-top: 10px;
}
.page-about .tl-foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(247, 246, 241, .66);
}
.page-about .tl-foot a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- PARTNERS ---------- */
.page-about .about-partners-lead {
  font-size: clamp(16px, 1.2vw, 18px);
  line-height: 1.8;
  color: var(--moss);
  max-width: 42em;
  margin: 0 0 clamp(24px, 3.4vw, 40px);
}
.page-about .about-partners-figure {
  margin: 0 0 clamp(24px, 3.4vw, 40px);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-paper);
  overflow: hidden;
}
.page-about .about-partners-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .partner-grid {
  display: grid;
  gap: 16px;
}
.page-about .partner-card {
  border-top: 3px solid var(--kiwi);
  background: var(--mist);
  padding: clamp(18px, 2.4vw, 26px);
}
.page-about .partner-card-wide {
  background: var(--ink);
  border-top-color: var(--lime);
}
.page-about .partner-num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1;
  color: var(--kiwi-deep);
  margin: 0 0 10px;
}
.page-about .partner-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(19px, 2vw, 24px);
  letter-spacing: .02em;
  margin: 0 0 10px;
  color: var(--ink);
}
.page-about .partner-card p {
  font-size: 15px;
  line-height: 1.76;
  color: var(--moss);
  margin: 0;
}
.page-about .partner-card-wide .partner-title { color: var(--lime); }
.page-about .partner-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-about .partner-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(247, 246, 241, .8);
}
.page-about .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 2px;
  background: var(--lime);
}

/* ---------- CREDENTIALS ---------- */
.page-about .about-credentials { background: var(--mist); }
.page-about .about-credentials-grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 46px);
}
.page-about .cred-list {
  display: grid;
  gap: 16px;
}
.page-about .cred-item {
  background: var(--paper);
  border-left: 4px solid var(--kiwi-deep);
  padding: clamp(16px, 2.2vw, 24px);
}
.page-about .cred-item h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(17px, 1.8vw, 21px);
  letter-spacing: .02em;
  margin: 12px 0 8px;
}
.page-about .cred-item p {
  font-size: 15px;
  line-height: 1.76;
  color: var(--moss);
  margin: 0;
}

/* ---------- CTA ---------- */
.page-about .about-cta {
  background: var(--ink);
  color: var(--paper);
  padding-bottom: 0;
}
.page-about .about-cta-inner {
  display: grid;
  gap: clamp(26px, 3.6vw, 48px);
}
.page-about .page-kicker-lime {
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  margin: 0 0 14px;
}
.page-about .about-cta-text p {
  font-size: 16px;
  line-height: 1.82;
  color: rgba(247, 246, 241, .76);
  max-width: 36em;
  margin: 0 0 22px;
}
.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-cta-ghost {
  color: var(--paper);
  border-color: rgba(247, 246, 241, .45);
}
.page-about .about-cta-ghost:hover {
  border-color: var(--lime);
  color: var(--lime);
}
.page-about .about-cta-facts {
  margin: 0;
  display: grid;
  gap: 16px;
  border-left: 2px solid var(--kiwi);
  padding-left: clamp(16px, 2.4vw, 26px);
}
.page-about .about-cta-facts dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--lime);
  margin-bottom: 6px;
}
.page-about .about-cta-facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(247, 246, 241, .74);
}
.page-about .about-batch-line {
  margin: clamp(30px, 4vw, 52px) auto 0;
  padding-block: 16px;
  border-top: 1px solid var(--line-dark);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .07em;
  color: rgba(247, 246, 241, .58);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }
  .page-about .about-origin-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-about .about-origin-aside {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-content: start;
  }
  .page-about .aside-card-quiet { grid-column: 1 / -1; }

  .page-about .cov-grid {
    grid-template-columns: repeat(12, 1fr);
  }
  .page-about .cov-a { grid-column: span 7; }
  .page-about .cov-b { grid-column: span 5; }
  .page-about .cov-c { grid-column: span 5; }
  .page-about .cov-d { grid-column: span 7; }

  .page-about .about-team-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .partner-grid {
    grid-template-columns: 5fr 5fr 7fr;
    align-items: start;
  }

  .page-about .about-credentials-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
  .page-about .cred-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .page-about .about-cta-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-about .about-partners-figure { margin-inline: calc(-1 * clamp(0px, 2vw, 30px)); }
}

@media (max-width: 640px) {
  .page-about .about-hero-visual { aspect-ratio: 4 / 3; }
  .page-about .about-hero-facts { gap: 16px 24px; }
  .page-about .tl-sum { flex-wrap: wrap; gap: 6px 12px; }
  .page-about .tl-sum::after { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-det { transition: none; }
}
<<<END>>>