.page-about {
  --ab-line: rgba(11, 74, 99, 0.16);
  --ab-line-strong: rgba(11, 74, 99, 0.32);
  --ab-pad: clamp(20px, 4vw, 64px);
  --ab-radius: 3px;
  --ab-soft: rgba(16, 42, 51, 0.62);
  background-color: var(--c-mist);
  background-image: linear-gradient(to right, var(--c-grid-soft) 1px, transparent 1px);
  background-size: 104px 104px;
  color: var(--c-text);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-about .ab-layout {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 24px var(--ab-pad) 72px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-about .ab-flow {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(52px, 8vw, 100px);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-about .ab-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(42px, 10vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.045em;
  color: var(--c-ink-900);
}

.page-about .ab-hero__em {
  color: var(--c-sea-500);
}

.page-about .ab-hero__foot {
  display: grid;
  gap: 26px;
  margin-top: 6px;
}

.page-about .ab-hero__lede {
  margin: 0;
  max-width: 660px;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.9;
}

.page-about .ab-facts {
  list-style: none;
  margin: 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--ab-line);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.page-about .ab-facts__n {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.1;
  color: var(--c-ink-700);
  letter-spacing: -0.02em;
}

.page-about .ab-facts__k {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ab-soft);
}

/* ---------- 使命深色块 ---------- */
.page-about .ab-mission {
  position: relative;
  overflow: hidden;
  background: var(--c-ink-900);
  color: var(--c-mist);
  border-radius: var(--ab-radius);
  padding: clamp(26px, 5vw, 64px);
}

.page-about .ab-mission::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -34%;
  width: 70%;
  height: 260px;
  background: radial-gradient(closest-side, rgba(111, 195, 199, 0.4), transparent 72%);
  pointer-events: none;
}

.page-about .ab-mission__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 8px;
}

.page-about .ab-mission__quote {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(72px, 13vw, 160px);
  line-height: 0.6;
  color: var(--c-coral-500);
  letter-spacing: -0.04em;
}

.page-about .ab-mission__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--c-mist);
}

.page-about .ab-mission__body p {
  margin: 0 0 16px;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.95;
  color: rgba(246, 251, 249, 0.82);
}

.page-about .ab-pillars {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .ab-pillars__item {
  border-top: 1px solid rgba(246, 251, 249, 0.22);
  padding-top: 14px;
  min-width: 0;
}

.page-about .ab-pillars__n {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-sand);
}

.page-about .ab-pillars__h {
  margin: 8px 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-mist);
}

.page-about .ab-pillars__p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(246, 251, 249, 0.72);
}

/* ---------- 时间轴 ---------- */
.page-about .ab-path__head {
  max-width: 740px;
  margin-bottom: 28px;
}

.page-about .ab-path__grid {
  display: grid;
  gap: 30px;
}

.page-about .ab-path__media {
  margin: 0;
  border: 1px solid var(--ab-line);
  background: #fff;
  padding: 8px;
}

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

.page-about .ab-tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 6px;
  min-width: 0;
}

.page-about .ab-tl__item {
  position: relative;
  padding: 0 0 26px 26px;
  border-left: 1px solid var(--ab-line);
  min-width: 0;
}

.page-about .ab-tl__item::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--c-sand);
  box-shadow: 0 0 0 4px var(--c-mist);
}

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

.page-about .ab-tl__meta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-sea-500);
}

.page-about .ab-tl__h {
  margin: 6px 0 6px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.3;
  color: var(--c-ink-900);
}

.page-about .ab-tl__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(16, 42, 51, 0.78);
}

/* ---------- 团队 ---------- */
.page-about .ab-team__head {
  max-width: 720px;
  margin-bottom: 26px;
}

.page-about .ab-team__lede {
  margin: 10px 0 0;
}

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

.page-about .ab-team__cards {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.page-about .ab-team__card {
  padding: 22px 20px 24px;
  background: #fff;
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  box-shadow: var(--shadow-1);
  transition: transform 0.28s var(--e), border-color 0.28s var(--e);
  min-width: 0;
}

.page-about .ab-team__card:hover {
  transform: translateY(-2px);
  border-color: var(--ab-line-strong);
}

.page-about .ab-team__n {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(32px, 4vw, 46px);
  line-height: 1;
  color: var(--c-sea-500);
  letter-spacing: -0.03em;
}

.page-about .ab-team__h {
  margin: 10px 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--c-ink-900);
}

.page-about .ab-team__p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(16, 42, 51, 0.8);
}

.page-about .ab-team__more {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--ab-line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--ab-soft);
}

.page-about .ab-team__media {
  margin: 0;
  border: 1px solid var(--ab-line);
  background: #fff;
  padding: 8px;
}

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

/* ---------- 运营节奏 ---------- */
.page-about .ab-content {
  border: 1px solid var(--c-grid);
  border-radius: var(--ab-radius);
  padding: clamp(22px, 4vw, 52px);
  background: linear-gradient(158deg, rgba(111, 195, 199, 0.3), rgba(246, 251, 249, 0) 72%);
}

.page-about .ab-content .prose {
  margin: 0 0 14px;
}

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

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

.page-about .ab-cadence__item {
  border-top: 2px solid var(--c-sand);
  padding: 12px 0 0;
  min-width: 0;
}

.page-about .ab-cadence__n {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 28px);
  color: var(--c-ink-900);
  letter-spacing: -0.02em;
}

.page-about .ab-cadence__k {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ab-soft);
}

/* ---------- 覆盖 ---------- */
.page-about .ab-coverage__media {
  margin: 0 0 26px;
  border: 1px solid var(--ab-line);
  background: #fff;
  padding: 8px;
}

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

.page-about .ab-coverage .prose {
  margin: 0;
}

.page-about .ab-stats {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.page-about .ab-stats__item {
  border-left: 1px solid var(--ab-line);
  padding-left: 12px;
  min-width: 0;
}

.page-about .ab-stats__n {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  color: var(--c-sea-500);
}

.page-about .ab-stats__k {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ab-soft);
}

.page-about .ab-honor {
  list-style: none;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--ab-line);
  display: grid;
  gap: 10px;
}

.page-about .ab-honor__item {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-ink-700);
}

.page-about .ab-honor__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 2px;
  background: var(--c-coral-500);
}

/* ---------- 结尾 ---------- */
.page-about .ab-next {
  position: relative;
  overflow: hidden;
  background: var(--c-coral-500);
  color: var(--c-ink-900);
  border-radius: var(--ab-radius);
  padding: clamp(26px, 4.5vw, 56px);
}

.page-about .ab-next::before {
  content: "";
  position: absolute;
  left: -8%;
  bottom: -46%;
  width: 116%;
  height: 200px;
  background: repeating-linear-gradient(115deg, rgba(5, 42, 56, 0.16) 0 2px, transparent 2px 26px);
  transform: rotate(-3deg);
  pointer-events: none;
}

.page-about .ab-next__title {
  position: relative;
  z-index: 1;
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--c-ink-900);
}

.page-about .ab-next__p {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 620px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(5, 42, 56, 0.86);
}

.page-about .ab-next__links {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: 26px;
}

.page-about .ab-next__cta {
  display: inline-flex;
  align-items: center;
  padding: 13px 22px;
  background: var(--c-ink-900);
  color: var(--c-mist);
  border-radius: 2px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.24s var(--e), transform 0.24s var(--e);
}

.page-about .ab-next__cta:hover {
  background: var(--c-ink-700);
  transform: translateY(-1px);
}

.page-about .ab-next__link {
  color: var(--c-ink-900);
  font-size: 14px;
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 1px solid rgba(5, 42, 56, 0.45);
  transition: border-color 0.24s var(--e);
}

.page-about .ab-next__link:hover {
  border-bottom-color: var(--c-ink-900);
}

/* ---------- 右侧索引 ---------- */
.page-about .ab-index {
  display: none;
}

.page-about .ab-index__inner {
  position: sticky;
  top: 32px;
}

.page-about .ab-index__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ab-soft);
}

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

.page-about .ab-index__link {
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 7px 0 7px 10px;
  border-left: 1px solid var(--ab-line);
  font-size: 13px;
  line-height: 1.5;
  color: var(--c-ink-700);
  text-decoration: none;
  transition: border-color 0.24s var(--e), color 0.24s var(--e);
}

.page-about .ab-index__link:hover,
.page-about .ab-index__link:focus-visible {
  border-left-color: var(--c-coral-500);
  color: var(--c-ink-900);
}

.page-about .ab-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-sand);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .ab-hero__foot {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: 32px;
  }

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

  .page-about .ab-pillars {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

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

  .page-about .ab-team__card:nth-child(2) {
    margin-top: 30px;
  }

  .page-about .ab-team__card:nth-child(3) {
    margin-top: 60px;
  }
}

@media (min-width: 960px) {
  .page-about .ab-mission__grid {
    grid-template-columns: minmax(0, 2fr) minmax(0, 9fr);
    gap: 20px;
    align-items: start;
  }

  .page-about .ab-path__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .ab-path__media {
    position: sticky;
    top: 28px;
  }

  .page-about .ab-team__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 36px;
    align-items: start;
  }

  .page-about .ab-team__media {
    position: sticky;
    top: 28px;
  }

  .page-about .ab-content__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .ab-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-about .ab-layout {
    grid-template-columns: minmax(0, 1fr) 168px;
    gap: 56px;
    padding-top: 40px;
  }

  .page-about .ab-index {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-team__card,
  .page-about .ab-next__cta,
  .page-about .ab-next__link,
  .page-about .ab-index__link {
    transition: none;
  }

  .page-about .ab-team__card:hover,
  .page-about .ab-next__cta:hover {
    transform: none;
  }
}
<<<END>>>