.page-about {
  --about-stripe: rgba(46, 139, 87, 0.24);
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 16px 0 44px;
  background-color: #E9EDE1;
  background-image:
    radial-gradient(95% 120% at 100% 0%, rgba(87, 201, 122, 0.28), rgba(87, 201, 122, 0) 62%),
    linear-gradient(180deg, rgba(227, 232, 220, 0.9) 0%, var(--paper) 82%);
  border-bottom: 1px solid var(--hairline);
}

.page-about .crumbs {
  margin: 0 0 18px;
  font-size: 12px;
  font-family: var(--font-mono);
}

.page-about .about-hero__inner {
  display: grid;
  gap: 26px;
}

.page-about .about-hero__title {
  margin: 10px 0 14px;
  font-size: clamp(34px, 8.6vw, 62px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-about .about-hero__title span {
  display: inline-block;
  padding: 0 0.08em;
  transform: skewX(-4deg) rotate(-1deg);
  transform-origin: left bottom;
  background-image: linear-gradient(180deg, transparent 64%, rgba(200, 255, 61, 0.72) 64%);
}

.page-about .about-hero .lede {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(11, 31, 22, 0.86);
}

.page-about .about-panel {
  background-color: var(--ink);
  background-image: linear-gradient(158deg, rgba(46, 139, 87, 0.38), rgba(11, 31, 22, 0) 64%);
  color: var(--on-dark);
  border-radius: var(--r-lg);
  padding: 20px 20px 18px;
  box-shadow: var(--shadow-1);
}

.page-about .about-panel__label {
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-dark-soft);
}

.page-about .about-panel__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 12px;
}

.page-about .about-stat {
  border-top: 1px solid var(--on-dark-line);
  padding-top: 10px;
}

.page-about .about-stat__num {
  display: block;
  font-size: clamp(22px, 6vw, 30px);
  line-height: 1;
  font-weight: 600;
  color: var(--volt);
  letter-spacing: -0.02em;
}

.page-about .about-stat__lbl {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--on-dark-soft);
}

.page-about .about-toc {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--on-dark-line);
}

.page-about .about-toc__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--on-dark-soft);
}

.page-about .about-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-about .about-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 12px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  color: var(--on-dark);
  text-decoration: none;
  font-size: 14px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus-visible {
  background-color: rgba(244, 241, 233, 0.1);
  border-color: var(--on-dark-line);
}

.page-about .about-toc__link.is-active {
  background-color: var(--volt);
  border-color: var(--volt);
  color: var(--ink);
  font-weight: 700;
}

.page-about .about-toc__num {
  font-size: 12px;
  color: var(--on-dark-soft);
}

.page-about .about-toc__link.is-active .about-toc__num {
  color: rgba(11, 31, 22, 0.6);
}

/* ---------- 章节通用 ---------- */
.page-about .about-sec {
  padding: 46px 0;
}

.page-about .about-sec--zone {
  background-color: var(--zone);
}

.page-about .section-title {
  margin: 8px 0 16px;
  font-size: clamp(24px, 5.6vw, 38px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .about-split {
  display: grid;
  gap: 26px;
}

.page-about .about-prose p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(11, 31, 22, 0.86);
}

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

.page-about .about-prose__lead {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(11, 31, 22, 0.86);
}

.page-about .about-note {
  margin: 22px 0 0;
  font-size: 12px;
  line-height: 1.8;
  color: var(--muted);
  padding-left: 14px;
  border-left: 3px solid var(--sprout);
}

/* ---------- 引用块 ---------- */
.page-about .about-quote {
  position: relative;
  margin: 22px 0 0;
  padding: 22px 20px 18px;
  border-radius: var(--r-lg);
  background-image: linear-gradient(135deg, rgba(200, 255, 61, 0.3), rgba(87, 201, 122, 0.14));
}

.page-about .about-quote::before {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px dashed rgba(11, 31, 22, 0.26);
  border-radius: var(--r-md);
  transform: skewX(-4deg);
  pointer-events: none;
}

.page-about .about-quote blockquote {
  margin: 0;
  font-size: clamp(17px, 3.6vw, 21px);
  line-height: 1.6;
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-quote figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--turf-dark);
}

/* ---------- 数字条 ---------- */
.page-about .fact-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.page-about .fact {
  background-color: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  padding: 14px 16px;
}

.page-about .fact__num {
  display: block;
  font-size: 26px;
  line-height: 1.1;
  color: var(--turf-dark);
  letter-spacing: -0.02em;
}

.page-about .fact__unit {
  font-size: 13px;
  margin-left: 3px;
  color: var(--muted);
}

.page-about .fact__lbl {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 时间线 ---------- */
.page-about .about-tl-grid {
  display: grid;
  gap: 26px;
  margin-top: 20px;
}

.page-about .about-tl-figure {
  border-radius: var(--r-lg);
  overflow: hidden;
  margin: 0;
}

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

.page-about .tl {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .tl__item {
  position: relative;
  padding: 0 0 26px 24px;
  border-left: 2px solid var(--about-stripe);
}

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

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--zone);
  border: 3px solid var(--turf);
  box-sizing: border-box;
}

.page-about .tl__item--now::before {
  border-color: var(--volt);
  background-color: var(--ink);
  box-shadow: 0 0 0 4px rgba(200, 255, 61, 0.3);
}

.page-about .tl__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--turf-dark);
}

.page-about .tl__item--now .tl__year {
  color: var(--ink);
}

.page-about .tl__item h3 {
  margin: 6px 0 6px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .tl__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: rgba(11, 31, 22, 0.8);
}

/* ---------- 团队图与岗位 ---------- */
.page-about .about-team-figure {
  border-radius: var(--r-lg);
  overflow: hidden;
  margin: 0;
}

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

.page-about .roles {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-about .role {
  background-color: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 20px;
  transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .role:hover,
.page-about .role:focus,
.page-about .role:focus-within {
  background-color: var(--ink-2);
  color: var(--on-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-1);
  outline: none;
}

.page-about .role__num {
  display: block;
  font-size: clamp(38px, 7vw, 54px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--turf-dark);
  transition: color 0.25s ease;
}

.page-about .role:hover .role__num,
.page-about .role:focus .role__num,
.page-about .role:focus-within .role__num {
  color: var(--volt);
}

.page-about .role h3 {
  margin: 10px 0 6px;
  font-size: 17px;
  font-weight: 700;
}

.page-about .role p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
}

.page-about .role__more {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  font-size: 13px;
  color: var(--on-dark-soft);
  transition: max-height 0.3s ease, opacity 0.25s ease, margin-top 0.3s ease;
}

.page-about .role:hover .role__more,
.page-about .role:focus .role__more,
.page-about .role:focus-within .role__more {
  max-height: 180px;
  opacity: 1;
  margin-top: 10px;
}

/* ---------- 合作 ---------- */
.page-about .about-coop {
  display: grid;
  gap: 24px;
}

.page-about .about-coop__figure {
  border-radius: var(--r-lg);
  overflow: hidden;
  margin: 0;
}

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

.page-about .about-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
}

/* ---------- 深绿收尾 ---------- */
.page-about .about-final {
  position: relative;
  background-color: var(--ink);
  color: var(--on-dark);
  padding: 46px 0 52px;
  overflow: hidden;
}

.page-about .about-final::before {
  content: "";
  position: absolute;
  top: -38%;
  left: -12%;
  width: 138%;
  height: 88%;
  background-image: linear-gradient(100deg, rgba(46, 139, 87, 0.55), rgba(11, 31, 22, 0) 62%);
  transform: skewY(-6deg);
  pointer-events: none;
}

.page-about .about-final > .wrap {
  position: relative;
  z-index: 1;
}

.page-about .eyebrow--on-dark {
  color: var(--volt);
}

.page-about .about-final__title {
  color: var(--paper);
  margin-bottom: 22px;
}

.page-about .about-final__grid {
  display: grid;
  gap: 24px;
}

.page-about .about-final__text p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--on-dark);
}

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

.page-about .about-links__a {
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  border: 1px solid var(--on-dark-line);
  color: var(--on-dark);
  text-decoration: none;
  font-size: 13px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-links__a:hover,
.page-about .about-links__a:focus-visible {
  background-color: var(--volt);
  border-color: var(--volt);
  color: var(--ink);
  font-weight: 700;
}

.page-about .about-contact {
  display: grid;
  gap: 2px;
  background-color: rgba(244, 241, 233, 0.05);
  border: 1px solid var(--on-dark-line);
  border-radius: var(--r-md);
  padding: 6px 16px;
}

.page-about .about-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--on-dark-line);
}

.page-about .about-contact__row:last-child {
  border-bottom: 0;
}

.page-about .about-contact__label {
  flex: 0 0 40px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--on-dark-soft);
}

.page-about .about-contact__value {
  flex: 1 1 160px;
  min-width: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-about .about-copybtn {
  flex: 0 0 auto;
  border: 1px solid var(--on-dark-line);
  background-color: rgba(244, 241, 233, 0.06);
  color: var(--on-dark);
  border-radius: var(--r-pill);
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-copybtn:hover,
.page-about .about-copybtn:focus-visible {
  background-color: var(--volt);
  border-color: var(--volt);
  color: var(--ink);
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-about .about-sec {
    padding: 58px 0;
  }

  .page-about .about-hero {
    padding: 20px 0 56px;
  }

  .page-about .about-panel {
    padding: 24px;
  }

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

/* ---------- 桌面 ---------- */
@media (min-width: 940px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, 0.78fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
    align-items: start;
  }

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

  .page-about .about-tl-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .about-tl-figure {
    position: sticky;
    top: 92px;
  }

  .page-about .about-coop {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: center;
  }

  .page-about .about-final__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .tl__year {
    font-size: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .role,
  .page-about .role__num,
  .page-about .role__more,
  .page-about .about-toc__link,
  .page-about .about-links__a,
  .page-about .about-copybtn {
    transition: none;
  }
}
<<<END>>>