.page-about {
  background: var(--ink);
  color: var(--white);
  overflow-x: clip;
}

.page-about p {
  margin: 0;
}

.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-about .ab-inline-link {
  color: var(--neon);
  border-bottom: 1px solid var(--teal);
  text-decoration: none;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-about .ab-inline-link:hover {
  border-bottom-color: var(--amber);
  color: var(--amber);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  padding: clamp(18px, 3.6vw, 34px) 0 clamp(44px, 6vw, 84px);
  isolation: isolate;
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(112deg, var(--turf) 0 54%, transparent 54%),
    repeating-linear-gradient(90deg, rgba(23, 74, 53, 0.5) 0 1px, transparent 1px 92px);
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), var(--teal) 42%, transparent 88%);
  opacity: 0.85;
}

.page-about .ab-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

.page-about .ab-hero__kicker {
  margin-top: clamp(14px, 2.4vw, 22px);
  color: var(--teal);
}

.page-about .ab-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.05rem, 6.2vw, 4.3rem);
  line-height: 0.94;
  letter-spacing: -0.022em;
  margin: clamp(10px, 2vw, 18px) 0 0;
  max-width: 20ch;
  text-wrap: balance;
}

.page-about .ab-hero__title em {
  font-style: normal;
  color: var(--neon);
  border-bottom: 3px solid var(--amber);
  padding-bottom: 2px;
}

.page-about .ab-hero .ak-lede {
  margin-top: clamp(16px, 2.6vw, 24px);
  max-width: 56ch;
  color: var(--warm);
  font-size: clamp(0.95rem, 1.25vw, 1.05rem);
  line-height: 1.85;
}

.page-about .ab-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--edge);
  border: 1px solid var(--edge);
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-about .ab-stat {
  background: var(--ink);
  padding: clamp(10px, 1.6vw, 16px) clamp(8px, 1.3vw, 14px);
}

.page-about .ab-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.6vw, 1.55rem);
  line-height: 1;
  color: var(--neon);
}

.page-about .ab-stat__label {
  display: block;
  margin-top: 7px;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  line-height: 1.45;
  color: var(--warm);
}

.page-about .ab-hero__media {
  margin: 0;
  position: relative;
}

.page-about .ab-hero__media .ak-frame {
  border: 1px solid var(--edge);
  clip-path: polygon(0 4%, 100% 0, 100% 96%, 0 100%);
  background: var(--turf);
  overflow: hidden;
}

.page-about .ab-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.06);
}

.page-about .ab-hero__media .ak-note {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--warm);
  max-width: 34ch;
}

/* ---------- 品牌陈述 ---------- */
.page-about .ab-why {
  border-top: 1px solid var(--edge);
}

.page-about .ab-why__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 3vw, 32px);
}

.page-about .ab-why__tag {
  color: var(--teal);
  line-height: 1;
}

.page-about .ab-why__body {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-about .ab-why__title {
  font-size: clamp(1.65rem, 3.8vw, 2.8rem);
  max-width: 22ch;
}

.page-about .ab-why .ak-prose {
  color: var(--warm);
  font-size: clamp(0.94rem, 1.1vw, 1.02rem);
  line-height: 1.9;
  display: grid;
  gap: 14px;
  max-width: 62ch;
}

.page-about .ab-why__note {
  position: relative;
  max-width: 44ch;
  padding: 18px 20px;
  color: var(--ink);
  font-size: 13.5px;
  line-height: 1.8;
  box-shadow: 10px 10px 0 -1px var(--turf), 10px 10px 0 0 var(--edge);
  transform: rotate(-1deg);
}

/* ---------- 时间线 ---------- */
.page-about .ab-tl-sec {
  position: relative;
}

.page-about .ab-sec-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(16px, 2.6vw, 24px);
}

.page-about .ab-sec-head h2 {
  font-size: clamp(1.55rem, 3.4vw, 2.5rem);
  max-width: 24ch;
}

.page-about .ab-sec-head .ak-note {
  color: var(--warm);
  font-size: 13px;
  line-height: 1.7;
}

.page-about .ab-filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: clamp(16px, 2.6vw, 22px);
  border-bottom: 1px solid var(--edge);
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-about .ab-filterbar .ak-filter {
  appearance: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  padding: 8px 15px;
  background: transparent;
  color: var(--warm);
  border: 1px solid var(--edge);
  border-radius: 0;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-about .ab-filterbar .ak-filter:hover {
  border-color: var(--neon);
  color: var(--neon);
}

.page-about .ab-filterbar .ak-filter[aria-pressed="true"] {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
  font-weight: 700;
}

.page-about .ab-tl {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(12px, 2vw, 18px);
}

.page-about .ab-tl__item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: clamp(10px, 1.8vw, 18px);
}

.page-about .ab-tl__year {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  line-height: 1;
  color: var(--neon);
  opacity: 0.9;
  padding-top: 2px;
}

.page-about .ab-tl__card {
  position: relative;
  background: var(--turf);
  border: 1px solid var(--edge);
  border-left: 3px solid var(--teal);
  padding: clamp(14px, 2.2vw, 22px);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-about .ab-tl__card:hover {
  border-left-color: var(--neon);
  box-shadow: -6px 6px 0 0 rgba(23, 74, 53, 0.9);
}

.page-about .ab-tl__phase {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--neon);
  margin-bottom: 8px;
}

.page-about .ab-tl__title {
  font-size: clamp(1.02rem, 2.1vw, 1.35rem);
  line-height: 1.18;
  margin-bottom: 8px;
}

.page-about .ab-tl__text {
  color: var(--warm);
  font-size: 14px;
  line-height: 1.78;
}

/* ---------- 两条主线 ---------- */
.page-about .ab-lines {
  background: linear-gradient(180deg, var(--turf), rgba(11, 42, 29, 0.1) 82%);
  border-top: 1px solid var(--edge);
  border-bottom: 1px solid var(--edge);
}

.page-about .ab-lines__head {
  display: grid;
  gap: 12px;
}

.page-about .ab-lines__head h2 {
  font-size: clamp(1.55rem, 3.4vw, 2.5rem);
  max-width: 26ch;
}

.page-about .ab-lines__head .ak-lede {
  color: var(--warm);
  font-size: clamp(0.94rem, 1.1vw, 1rem);
  line-height: 1.8;
  max-width: 52ch;
}

.page-about .ab-map {
  display: block;
  width: 100%;
  height: auto;
  margin: clamp(16px, 2.8vw, 28px) 0;
  overflow: visible;
}

.page-about .ab-map__grid {
  stroke: var(--edge);
  stroke-width: 1;
  stroke-dasharray: 4 6;
}

.page-about .ab-map__line {
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-about .ab-map__line--data {
  stroke: var(--neon);
}

.page-about .ab-map__line--help {
  stroke: var(--amber);
}

.page-about .ab-map__dot {
  fill: var(--ink);
  stroke-width: 2;
}

.page-about .ab-map__dot--data {
  stroke: var(--neon);
}

.page-about .ab-map__dot--help {
  stroke: var(--amber);
}

.page-about .ab-map__label {
  fill: var(--warm);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-about .ab-lines__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 24px);
}

.page-about .ab-linecard {
  padding: clamp(18px, 2.6vw, 26px);
  color: var(--ink);
  border-top: 3px solid var(--amber);
  box-shadow: 8px 8px 0 -1px var(--turf), 8px 8px 0 0 var(--edge);
}

.page-about .ab-linecard__tag {
  color: rgba(6, 23, 15, 0.6);
  margin-bottom: 10px;
}

.page-about .ab-linecard__title {
  font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  margin-bottom: 14px;
}

.page-about .ab-linecard__nums {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 0 0 14px;
  padding: 12px 0;
  border-top: 1px solid rgba(6, 23, 15, 0.18);
  border-bottom: 1px solid rgba(6, 23, 15, 0.18);
}

.page-about .ab-linecard__nums > div {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-about .ab-linecard__nums dt {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: rgba(6, 23, 15, 0.65);
}

.page-about .ab-linecard__nums dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  font-weight: 700;
  color: var(--ink);
}

.page-about .ab-linecard__text {
  font-size: 13.5px;
  line-height: 1.82;
  color: rgba(6, 23, 15, 0.82);
}

/* ---------- 团队 ---------- */
.page-about .ab-team__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.4vw, 40px);
}

.page-about .ab-team__media .ak-frame {
  border: 1px solid var(--edge);
  background: var(--turf);
}

.page-about .ab-team__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.08);
}

.page-about .ab-team__body {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-about .ab-team__title {
  font-size: clamp(1.5rem, 3.4vw, 2.4rem);
  max-width: 22ch;
}

.page-about .ab-team__intro {
  color: var(--warm);
  font-size: clamp(0.94rem, 1.1vw, 1rem);
  line-height: 1.82;
  max-width: 52ch;
}

.page-about .ab-team__stats {
  list-style: none;
  margin: clamp(8px, 1.6vw, 14px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--edge);
  border: 1px solid var(--edge);
}

.page-about .ab-team__stat {
  background: var(--ink);
  padding: clamp(12px, 2vw, 18px);
  position: relative;
  transition: background-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-about .ab-team__stat:hover,
.page-about .ab-team__stat:focus-visible {
  background: var(--turf);
  box-shadow: inset 0 0 0 1px var(--neon);
  outline: none;
}

.page-about .ab-team__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.55rem, 3.8vw, 2.3rem);
  line-height: 1;
  color: var(--neon);
}

.page-about .ab-team__role {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--white);
}

.page-about .ab-team__duty {
  display: block;
  margin-top: 6px;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--warm);
  opacity: 0.6;
  transition: opacity 0.18s var(--ease);
}

.page-about .ab-team__stat:hover .ab-team__duty,
.page-about .ab-team__stat:focus-visible .ab-team__duty {
  opacity: 1;
}

/* ---------- 设备适配 ---------- */
.page-about .ab-fit {
  padding-top: clamp(8px, 1.4vw, 14px);
}

.page-about .ab-fit__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
  align-items: start;
}

.page-about .ab-fit__media .ak-frame {
  border: 1px solid var(--edge);
  background: var(--turf);
}

.page-about .ab-fit__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-about .ab-fit__media .ak-note {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--warm);
  max-width: 40ch;
}

.page-about .ab-fit__cards {
  display: grid;
  gap: clamp(10px, 1.8vw, 14px);
}

.page-about .ab-fit__card {
  border-left: 3px solid var(--neon);
  background: var(--turf);
  padding: clamp(14px, 2vw, 18px);
}

.page-about .ab-fit__card-t {
  font-size: clamp(1rem, 1.9vw, 1.2rem);
  margin-bottom: 8px;
}

.page-about .ab-fit__card-tx {
  color: var(--warm);
  font-size: 13.5px;
  line-height: 1.78;
}

.page-about .ab-fit__service {
  margin-top: 4px;
  padding: 12px 14px;
  border: 1px dashed var(--edge);
  color: var(--warm);
  font-size: 12.5px;
  line-height: 1.75;
}

/* ---------- 区域协作 ---------- */
.page-about .ab-partners {
  position: relative;
  padding: clamp(34px, 5vw, 66px) 0;
  background: var(--turf);
  border-top: 1px solid var(--edge);
  border-bottom: 1px solid var(--edge);
  overflow: hidden;
}

.page-about .ab-partners::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(-45deg, rgba(63, 242, 198, 0.07) 0 2px, transparent 2px 16px);
  pointer-events: none;
}

.page-about .ab-partners__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 3vw, 36px);
  align-items: start;
}

.page-about .ab-partners__figure {
  display: flex;
  align-items: baseline;
  gap: 10px;
  border-left: 3px solid var(--amber);
  padding-left: 14px;
}

.page-about .ab-partners__num {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 7vw, 4rem);
  line-height: 0.9;
  color: var(--amber);
}

.page-about .ab-partners__cap {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--warm);
  max-width: 8ch;
  line-height: 1.6;
}

.page-about .ab-partners__body {
  display: grid;
  gap: 14px;
}

.page-about .ab-partners__title {
  font-size: clamp(1.45rem, 3.2vw, 2.2rem);
  max-width: 20ch;
}

.page-about .ab-partners__body p {
  color: var(--warm);
  font-size: clamp(0.94rem, 1.1vw, 1rem);
  line-height: 1.85;
  max-width: 58ch;
}

/* ---------- 行动区 ---------- */
.page-about .ab-cta {
  padding-top: clamp(32px, 5vw, 60px);
  padding-bottom: clamp(48px, 7vw, 90px);
}

.page-about .ab-cta__inner {
  display: grid;
  gap: clamp(12px, 2vw, 18px);
  border-top: 2px solid var(--neon);
  padding-top: clamp(22px, 3.4vw, 36px);
}

.page-about .ab-cta__title {
  font-size: clamp(1.5rem, 3.6vw, 2.5rem);
  max-width: 22ch;
}

.page-about .ab-cta__lede {
  color: var(--warm);
  font-size: clamp(0.94rem, 1.1vw, 1rem);
  line-height: 1.8;
  max-width: 50ch;
}

.page-about .ab-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .ab-team__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .ab-tl__item {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .page-about .ab-tl__year {
    font-size: 12px;
    letter-spacing: 0.26em;
  }
}

@media (min-width: 820px) {
  .page-about .ab-linecard {
    min-height: 100%;
  }

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

  .page-about .ab-lines__cards > :nth-child(2) {
    margin-top: 38px;
  }

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

  .page-about .ab-partners__inner {
    grid-template-columns: minmax(0, 0.32fr) minmax(0, 0.68fr);
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero__inner {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: end;
  }

  .page-about .ab-why__inner {
    grid-template-columns: 46px minmax(0, 1fr);
    align-items: start;
  }

  .page-about .ab-why__tag {
    writing-mode: vertical-rl;
    letter-spacing: 0.34em;
    margin-top: 4px;
  }

  .page-about .ab-why__note {
    justify-self: end;
    margin-top: -14px;
  }

  .page-about .ab-team__inner {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: center;
  }

  .page-about .ab-tl__item:nth-child(2) .ab-tl__card {
    transform: translateX(14px);
  }

  .page-about .ab-tl__item:nth-child(3) .ab-tl__card {
    transform: translateX(28px);
  }

  .page-about .ab-tl__item:nth-child(4) .ab-tl__card {
    transform: translateX(42px);
  }

  .page-about .ab-tl__item:nth-child(5) .ab-tl__card {
    transform: translateX(56px);
  }

  .page-about .ab-tl__item:nth-child(6) .ab-tl__card {
    transform: translateX(28px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-tl__card,
  .page-about .ab-team__stat,
  .page-about .ab-team__duty,
  .page-about .ab-filterbar .ak-filter {
    transition: none;
  }
}
<<<END>>>