.page-about {
  --ab-gap: clamp(56px, 9vw, 112px);
  --ab-ink-soft: rgba(251, 248, 241, .72);
  background: var(--paper-cream);
  color: var(--deep-ink-green);
}

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

.page-about .ab-hero {
  padding-top: clamp(28px, 5vw, 56px);
  padding-bottom: clamp(32px, 6vw, 64px);
}

.page-about .ab-hero__title {
  margin: 14px 0 0;
  font-size: clamp(2.05rem, 5.6vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-about .ab-hero__lede {
  margin-top: 22px;
  max-width: 42ch;
}

.page-about .ab-hero__facts {
  list-style: none;
  margin: clamp(32px, 5vw, 52px) 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--hair);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 18px;
  max-width: 760px;
}

.page-about .ab-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-about .ab-hero__facts .num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.6vw, 2.2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--skin-brown);
}

.page-about .ab-hero__facts li > span:last-child {
  font-size: 14px;
  line-height: 1.5;
  color: var(--skin-brown);
}

/* 主张 */
.page-about .ab-claim {
  margin-top: var(--ab-gap);
}

.page-about .ab-claim__band {
  position: relative;
  background:
    radial-gradient(circle at 18% 68%, rgba(43, 43, 35, .16) 0 3px, transparent 4px),
    radial-gradient(circle at 74% 34%, rgba(43, 43, 35, .14) 0 3px, transparent 4px),
    radial-gradient(circle at 46% 82%, rgba(43, 43, 35, .12) 0 3px, transparent 4px),
    linear-gradient(180deg, var(--kiwi-flesh) 0%, #7CBB3C 100%);
  padding: clamp(56px, 9vw, 118px) var(--gutter) clamp(84px, 13vw, 168px);
  clip-path: polygon(0 0, 100% 34px, 100% 100%, 0 100%);
}

.page-about .ab-claim__slogan {
  margin: 0 auto;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 8.4vw, 5.6rem);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.03em;
  text-align: center;
  color: var(--deep-ink-green);
}

.page-about .ab-claim__text {
  max-width: 700px;
  margin: clamp(-64px, -6vw, -40px) auto 0;
  padding: clamp(24px, 4vw, 44px) clamp(20px, 4vw, 44px);
  background: var(--paper-cream);
  border: 1px solid var(--hair);
}

.page-about .ab-claim__text p {
  margin: 0 0 16px;
  line-height: 1.85;
  max-width: 37ch;
}

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

.page-about .ab-claim__text .section-label {
  margin-bottom: 14px;
}

/* 时间轴 */
.page-about .ab-timeline {
  padding-top: var(--ab-gap);
}

.page-about .ab-timeline__lede {
  margin-top: 18px;
  max-width: 44ch;
}

.page-about .tl {
  list-style: none;
  margin: clamp(32px, 5vw, 56px) 0 0;
  padding: 0;
}

.page-about .tl__item {
  position: relative;
  padding: 0 0 clamp(28px, 4.5vw, 52px) 40px;
}

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 22px;
  bottom: 0;
  width: 1px;
  background: var(--hair);
}

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

.page-about .tl__item:last-child::before {
  display: none;
}

.page-about .tl__node {
  position: absolute;
  left: 0;
  top: 6px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--kiwi-flesh);
  box-shadow: 0 0 0 4px var(--paper-cream), 0 0 0 5px var(--hair);
  transition: transform 320ms var(--ease), background-color 320ms var(--ease);
}

.page-about .tl__node::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--seed-black);
  opacity: .55;
}

.page-about .tl__item:last-child .tl__node {
  background: var(--lemon-sour);
  transform: scale(1.18);
}

.page-about .tl__item:last-child .tl__node::after {
  opacity: .3;
}

.page-about .tl__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--skin-brown);
  margin-bottom: 6px;
}

.page-about .tl__fold {
  border: 0;
}

.page-about .tl__summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  cursor: pointer;
  padding: 2px 0;
}

.page-about .tl__title {
  flex: 1 1 auto;
  font-family: var(--font-sans);
  font-size: clamp(1.05rem, 2.3vw, 1.4rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--deep-ink-green);
}

.page-about .tl__body {
  padding-top: 12px;
}

.page-about .tl__body p {
  margin: 0 0 14px;
  line-height: 1.85;
  max-width: 37ch;
}

.page-about .tl__figure {
  margin: 18px 0 0;
}

.page-about .tl__figure .media__caption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--skin-brown);
  margin-top: 10px;
}

/* 团队 */
.page-about .ab-team {
  margin-top: var(--ab-gap);
  background: var(--kiwi-flesh-soft);
  padding: clamp(52px, 8vw, 104px) 0;
}

.page-about .ab-team__lede {
  margin-top: 18px;
  max-width: 44ch;
}

.page-about .ab-team__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(30px, 5vw, 52px);
}

.page-about .ab-team__card {
  position: relative;
  padding: 26px 22px 28px;
  background: var(--paper-cream);
  border: 1px solid var(--skin-brown);
  transition: transform 260ms var(--ease), background-color 260ms var(--ease);
}

.page-about .ab-team__card:hover,
.page-about .ab-team__card:focus-within {
  background: #F4FAE6;
  transform: translateY(-4px);
}

.page-about .ab-team__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--kiwi-flesh);
  text-shadow: 1px 1px 0 var(--skin-brown);
}

.page-about .ab-team__name {
  margin: 14px 0 10px;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--deep-ink-green);
}

.page-about .ab-team__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--deep-ink-green);
}

.page-about .ab-team__media {
  margin: clamp(36px, 6vw, 72px) 0 0;
}

.page-about .ab-team__media .media__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--skin-brown);
}

/* 地域 */
.page-about .ab-place {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-top: var(--ab-gap);
  padding: clamp(60px, 9vw, 116px) 0;
  background: var(--deep-ink-green);
  color: var(--paper-cream);
}

.page-about .ab-place__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: .2;
}

.page-about .ab-place__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .ab-place .section-label {
  color: var(--kiwi-flesh);
}

.page-about .ab-place__title {
  margin: 14px 0 0;
  max-width: 20ch;
  color: var(--paper-cream);
}

.page-about .ab-place__text {
  margin: 18px 0 0;
  max-width: 38ch;
  line-height: 1.85;
  color: var(--ab-ink-soft);
}

/* 巡检 */
.page-about .ab-ops {
  padding-top: var(--ab-gap);
}

.page-about .ab-ops__grid {
  display: grid;
  gap: clamp(30px, 5vw, 60px);
}

.page-about .ab-ops__lead h2 {
  margin: 14px 0 0;
  max-width: 18ch;
}

.page-about .ab-ops__lead .lede {
  margin-top: 18px;
  max-width: 36ch;
}

.page-about .ab-ops__lead p {
  max-width: 38ch;
  line-height: 1.85;
}

.page-about .ab-ops__steps {
  counter-reset: ops;
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-about .ab-ops__steps li {
  counter-increment: ops;
  position: relative;
  padding: 20px 0 20px 54px;
  border-bottom: 1px solid var(--hair);
  line-height: 1.8;
  font-size: 15px;
}

.page-about .ab-ops__steps li::before {
  content: "0" counter(ops);
  position: absolute;
  left: 0;
  top: 21px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--skin-brown);
}

.page-about .ab-hl {
  background: linear-gradient(transparent 60%, var(--lemon-sour) 60%);
  font-weight: 700;
  padding: 0 1px;
}

/* 安全 */
.page-about .ab-sec {
  margin-top: var(--ab-gap);
  padding: clamp(56px, 9vw, 112px) 0;
  background: var(--deep-ink-green);
  color: var(--paper-cream);
}

.page-about .ab-sec .section-label {
  color: var(--kiwi-flesh);
}

.page-about .ab-sec__title {
  margin: 14px 0 0;
  max-width: 18ch;
  color: var(--paper-cream);
}

.page-about .ab-sec__lede {
  margin: 18px 0 0;
  max-width: 40ch;
  line-height: 1.85;
  color: var(--ab-ink-soft);
}

.page-about .ab-sec__folds {
  margin-top: clamp(30px, 5vw, 48px);
  border-top: 1px solid var(--hair-light);
}

.page-about .ab-sec__fold {
  border-bottom: 1px solid var(--hair-light);
}

.page-about .ab-sec__fold .fold__summary {
  padding: 20px 0;
  color: var(--paper-cream);
  font-weight: 700;
  cursor: pointer;
}

.page-about .ab-sec__fold .fold__body p {
  margin: 0 0 14px;
  max-width: 38ch;
  line-height: 1.85;
  color: var(--ab-ink-soft);
}

.page-about .ab-sec__fold .fold__body a {
  color: var(--kiwi-flesh);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 伙伴 */
.page-about .ab-partners {
  padding-top: var(--ab-gap);
  padding-bottom: clamp(56px, 9vw, 104px);
}

.page-about .ab-partners__lede {
  margin-top: 18px;
  max-width: 44ch;
}

.page-about .ab-partners__list {
  list-style: none;
  margin: clamp(30px, 5vw, 52px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
}

.page-about .ab-partners__list li {
  background: var(--paper-cream);
  padding: 24px 22px 26px;
  transition: background-color 240ms var(--ease);
}

.page-about .ab-partners__list li:hover {
  background: var(--kiwi-flesh-soft);
}

.page-about .ab-partners__list h3 {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  color: var(--deep-ink-green);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--kiwi-flesh);
  display: inline-block;
}

.page-about .ab-partners__list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--deep-ink-green);
}

.page-about .ab-partners__cta {
  margin: clamp(28px, 4vw, 40px) 0 0;
  max-width: 44ch;
  line-height: 1.85;
  color: var(--skin-brown);
}

.page-about .ab-partners__cta a {
  color: var(--deep-ink-green);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--kiwi-flesh);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-about a:focus-visible,
.page-about summary:focus-visible {
  outline: 2px solid var(--kiwi-flesh);
  outline-offset: 2px;
}

@media (min-width: 720px) {
  .page-about .ab-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .ab-team__card:nth-child(2) {
    transform: translateY(28px);
  }

  .page-about .ab-team__card:nth-child(3) {
    transform: translateY(56px);
  }

  .page-about .ab-team__card:nth-child(2):hover,
  .page-about .ab-team__card:nth-child(3):hover {
    transform: translateY(24px);
  }

  .page-about .ab-team__card:nth-child(3):hover {
    transform: translateY(52px);
  }

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

@media (min-width: 900px) {
  .page-about .ab-claim__band {
    padding-left: clamp(48px, 8vw, 120px);
    padding-right: clamp(48px, 8vw, 120px);
  }

  .page-about .tl__item {
    padding-left: 200px;
  }

  .page-about .tl__year {
    position: absolute;
    left: 46px;
    top: 4px;
    margin-bottom: 0;
    font-size: 14px;
  }

  .page-about .tl__item::before {
    left: 7px;
    top: 22px;
  }

  .page-about .tl__fold {
    max-width: 62ch;
  }

  .page-about .ab-ops__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .tl__node,
  .page-about .ab-team__card,
  .page-about .ab-partners__list li {
    transition: opacity 160ms linear;
  }

  .page-about .ab-team__card:hover,
  .page-about .ab-team__card:focus-within,
  .page-about .ab-team__card:nth-child(2),
  .page-about .ab-team__card:nth-child(3),
  .page-about .ab-team__card:nth-child(2):hover,
  .page-about .ab-team__card:nth-child(3):hover {
    transform: none;
  }
}
<<<END>>>