.page-about {
  --ab-soft: rgba(244, 239, 227, .72);
  --ab-hair-ink: rgba(11, 43, 38, .18);
  --ab-hair-ink-soft: rgba(11, 43, 38, .1);
  background: var(--green);
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.012em;
  margin: 0;
}

.page-about p {
  margin: 0 0 16px;
}

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

.page-about a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  padding: clamp(24px, 5vw, 56px) 0 clamp(56px, 9vw, 104px);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(14, 32, 56, .95) 0%, rgba(11, 43, 38, 0) 62%),
    var(--green);
  overflow: hidden;
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid var(--hair-lime);
  pointer-events: none;
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  top: 14px;
  left: 14px;
  right: 14px;
  height: 8px;
  background-image: repeating-linear-gradient(to right, var(--hair-lime) 0 1px, transparent 1px 36px);
  pointer-events: none;
  opacity: .8;
}

.page-about .ab-hero__crumbs {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(20px, 4vw, 36px);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
}

.page-about .ab-hero__crumbs a {
  color: var(--paper);
  text-decoration: none;
}

.page-about .ab-hero__crumbs a:hover,
.page-about .ab-hero__crumbs a:focus-visible {
  color: var(--lime);
}

.page-about .ab-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
}

.page-about .ab-stamp {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 18px;
}

.page-about .ab-hero__title {
  font-size: clamp(42px, 8.6vw, 96px);
  font-weight: 900;
  color: var(--paper);
  margin: 0 0 24px;
}

.page-about .ab-hero__lede {
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--ab-soft);
  max-width: 46ch;
  margin: 0;
}

.page-about .ab-toc {
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .ab-toc__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--mist);
  margin: 0 0 10px;
}

.page-about .ab-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--hair);
}

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

.page-about .ab-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 2px;
  color: var(--paper);
  text-decoration: none;
  font-size: 14px;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-about .ab-toc__list a:hover,
.page-about .ab-toc__list a:focus-visible {
  color: var(--lime);
  padding-left: 8px;
}

.page-about .ab-toc__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--lime);
  min-width: 22px;
}

.page-about .ab-hero__art {
  display: grid;
  gap: 16px;
  align-content: end;
}

.page-about .ab-hero__figure {
  margin: 0;
  border: 1px solid var(--hair);
  padding: 10px;
  background: rgba(14, 32, 56, .62);
}

.page-about .ab-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-about .ab-hero__figure figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
  padding-top: 10px;
}

.page-about .ab-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--hair);
}

.page-about .ab-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border-right: 1px solid var(--hair-soft);
  border-bottom: 1px solid var(--hair-soft);
}

.page-about .ab-facts li:nth-child(2n) {
  border-right: 0;
}

.page-about .ab-facts li:nth-child(n+3) {
  border-bottom: 0;
}

.page-about .ab-facts__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1;
  color: var(--lime);
}

.page-about .ab-facts__label {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

/* ---------- 通用分区 ---------- */
.page-about .ab-zone {
  position: relative;
  padding: clamp(52px, 8vw, 104px) 0;
}

.page-about .ab-zone--paper {
  background: var(--paper);
  color: var(--green);
}

.page-about .ab-zone--night {
  background: var(--night);
  color: var(--paper);
}

.page-about .ab-zone--green {
  background: var(--green);
  color: var(--paper);
}

/* ---------- 编号分栏 ---------- */
.page-about .ab-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px clamp(24px, 4vw, 56px);
}

.page-about .ab-grid__side {
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.page-about .ab-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(34px, 6vw, 60px);
  line-height: .9;
  letter-spacing: -.02em;
  color: var(--lime);
  margin: 0;
}

.page-about .ab-zone--paper .ab-num {
  color: var(--orange);
}

.page-about .ab-side-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--mist);
  margin: 0;
  border-left: 1px solid var(--hair);
  padding-left: 10px;
}

.page-about .ab-zone--paper .ab-side-label {
  border-left-color: var(--ab-hair-ink);
  color: rgba(11, 43, 38, .5);
}

.page-about .ab-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 10px;
}

.page-about .ab-zone--paper .ab-kicker {
  color: var(--wine);
}

.page-about .ab-grid__body h2 {
  font-size: clamp(30px, 4.6vw, 52px);
  margin: 0 0 20px;
}

.page-about .ab-lead-p {
  font-size: clamp(15px, 1.55vw, 17px);
  line-height: 1.9;
  margin-bottom: 18px;
}

.page-about .ab-zone--paper .ab-lead-p {
  color: var(--green);
}

.page-about .ab-grid__body p {
  max-width: 66ch;
}

/* ---------- 01 订阅 ---------- */
.page-about .ab-bullets {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ab-hair-ink);
}

.page-about .ab-bullets li {
  padding: 14px 0;
  border-bottom: 1px solid var(--ab-hair-ink-soft);
  font-size: 15px;
  line-height: 1.75;
}

.page-about .ab-bullets li:last-child {
  border-bottom: 0;
}

.page-about .ab-bullets strong {
  display: inline-block;
  min-width: 86px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--wine);
  font-weight: 700;
}

/* ---------- 02 服务线 ---------- */
.page-about .ab-diagram {
  margin: 28px 0 clamp(24px, 4vw, 40px);
  border: 1px solid var(--hair);
  padding: clamp(14px, 2.4vw, 24px);
  background: rgba(6, 21, 18, .35);
}

.page-about .ab-diagram svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .ab-flow__node rect {
  fill: transparent;
  stroke: var(--mist);
  stroke-width: 1;
}

.page-about .ab-flow__node text {
  fill: var(--paper);
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .02em;
  text-anchor: middle;
}

.page-about .ab-flow__node--accent rect {
  stroke: var(--lime);
}

.page-about .ab-flow__node--accent text {
  fill: var(--lime);
}

.page-about .ab-flow__stem line {
  stroke: var(--hair-lime);
  stroke-width: 1;
}

.page-about .ab-flow__bar {
  fill: var(--lime);
}

.page-about .ab-flow__bar-label {
  fill: var(--green);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .12em;
  text-anchor: middle;
}

.page-about .ab-lines {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-about .ab-line-card {
  padding: 20px 0;
  border-top: 1px solid var(--hair);
}

.page-about .ab-line-card:last-child {
  border-bottom: 1px solid var(--hair);
}

.page-about .ab-line-card__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
  margin: 0 0 6px;
}

.page-about .ab-line-card h3 {
  font-size: clamp(20px, 2.2vw, 24px);
  margin: 0 0 8px;
}

.page-about .ab-line-card p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ab-soft);
  margin: 0;
}

/* ---------- 03 时间轴 ---------- */
.page-about .ab-timeline__fig {
  margin: 0 0 clamp(24px, 4vw, 36px);
  border: 1px solid var(--ab-hair-ink);
  padding: 8px;
  background: rgba(255, 255, 255, .35);
}

.page-about .ab-timeline__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-about .ab-timeline__fig figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(11, 43, 38, .55);
  padding-top: 8px;
}

.page-about .ab-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .ab-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--ab-hair-ink);
}

.page-about .ab-timeline__item {
  position: relative;
  padding: 0 0 28px 32px;
}

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

.page-about .ab-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--green);
}

.page-about .ab-time__year {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--wine);
  margin: 0 0 6px;
}

.page-about .ab-time__body h3 {
  font-size: clamp(19px, 2.1vw, 23px);
  margin: 0 0 8px;
}

.page-about .ab-time__body p {
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

/* ---------- 04 团队 ---------- */
.page-about .ab-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  margin-top: 8px;
}

.page-about .ab-team__lead p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ab-soft);
}

.page-about .ab-team__fig {
  margin: 20px 0 0;
  border: 1px solid var(--hair);
  padding: 8px;
  background: rgba(6, 21, 18, .35);
}

.page-about .ab-team__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-about .ab-team__fig figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
  padding-top: 8px;
}

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

.page-about .ab-roles li {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--hair);
}

.page-about .ab-roles li:last-child {
  border-bottom: 1px solid var(--hair);
}

.page-about .ab-roles__k {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
  color: var(--lime);
  padding-top: 4px;
}

.page-about .ab-roles h3 {
  font-size: 19px;
  margin: 0 0 6px;
}

.page-about .ab-roles p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ab-soft);
  margin: 0;
}

/* ---------- 05 覆盖 ---------- */
.page-about .ab-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ab-hair-ink);
  border: 1px solid var(--ab-hair-ink);
  margin: 8px 0 clamp(28px, 4vw, 40px);
}

.page-about .ab-stat {
  background: var(--paper);
  padding: 22px 20px;
}

.page-about .ab-stat__n {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(38px, 6vw, 60px);
  line-height: 1;
  color: var(--green);
  margin: 0 0 8px;
  letter-spacing: -.02em;
}

.page-about .ab-stat__n small {
  display: inline-block;
  margin-left: 6px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--wine);
  vertical-align: .32em;
}

.page-about .ab-stat__l {
  margin: 0;
  font-size: 14px;
  color: rgba(11, 43, 38, .7);
}

.page-about .ab-cadence {
  border-top: 1px solid var(--ab-hair-ink);
  padding-top: 22px;
}

.page-about .ab-cadence > p {
  font-size: 15px;
  margin-bottom: 16px;
}

.page-about .ab-cadence ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: cad;
  display: grid;
  gap: 0;
}

.page-about .ab-cadence li {
  counter-increment: cad;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-top: 1px dashed var(--ab-hair-ink);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .ab-cadence li::before {
  content: "0" counter(cad);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
  padding-top: 6px;
}

.page-about .ab-cadence strong {
  display: block;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: .01em;
  color: var(--green);
  margin-bottom: 4px;
}

/* ---------- 06 生态 ---------- */
.page-about .ab-partner-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .ab-partner-list li {
  padding: 8px 14px;
  border: 1px solid var(--hair-lime);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-about .ab-honor {
  margin-top: clamp(24px, 4vw, 36px);
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--hair);
  background: rgba(184, 255, 61, .04);
}

.page-about .ab-honor__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--lime);
  margin: 0 0 10px;
}

.page-about .ab-honor p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ab-soft);
}

.page-about .ab-eco-tail {
  margin-top: 22px;
  font-size: 15px;
  color: var(--mist);
}

.page-about .ab-eco-tail a {
  color: var(--lime);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.page-about .ab-eco-tail a:hover,
.page-about .ab-eco-tail a:focus-visible {
  color: var(--orange);
}

/* ---------- 07 下一场 ---------- */
.page-about .ab-next {
  padding-bottom: clamp(64px, 10vw, 120px);
}

.page-about .ab-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
}

.page-about .ab-next .ab-kicker {
  color: var(--lime);
}

.page-about .ab-next h2 {
  font-size: clamp(32px, 5vw, 56px);
  margin: 0 0 18px;
}

.page-about .ab-next__lead p:last-child {
  color: var(--ab-soft);
  font-size: 15px;
  line-height: 1.9;
  max-width: 52ch;
}

.page-about .ab-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

.page-about .ab-next__links .btn {
  text-decoration: none;
}

/* ---------- 交互状态 ---------- */
.page-about a:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

/* ---------- 中等屏 ---------- */
@media (min-width: 640px) {
  .page-about .ab-toc__list {
    grid-template-columns: repeat(2, 1fr);
    column-gap: 24px;
  }

  .page-about .ab-toc__list li:nth-last-child(1) {
    border-bottom: 0;
  }

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

  .page-about .ab-facts li {
    border-bottom: 0;
    border-right: 1px solid var(--hair-soft);
  }

  .page-about .ab-facts li:nth-child(2n) {
    border-right: 1px solid var(--hair-soft);
  }

  .page-about .ab-facts li:last-child {
    border-right: 0;
  }

  .page-about .ab-lines {
    grid-template-columns: repeat(2, 1fr);
    column-gap: clamp(20px, 3vw, 36px);
  }

  .page-about .ab-lines .ab-line-card:nth-last-child(-n+2) {
    border-bottom: 1px solid var(--hair);
  }

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

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(36px, 5vw, 72px);
  }

  .page-about .ab-grid {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: start;
  }

  .page-about .ab-grid__side {
    position: sticky;
    top: 96px;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .page-about .ab-side-label {
    writing-mode: vertical-rl;
    border-left: 0;
    border-top: 1px solid var(--hair);
    padding-left: 0;
    padding-top: 14px;
    letter-spacing: .42em;
  }

  .page-about .ab-zone--paper .ab-side-label {
    border-top-color: var(--ab-hair-ink);
  }

  .page-about .ab-timeline::before {
    left: 96px;
  }

  .page-about .ab-timeline__item {
    padding-left: 140px;
  }

  .page-about .ab-timeline__item::before {
    left: 91px;
  }

  .page-about .ab-time__year {
    position: absolute;
    left: 0;
    top: 4px;
    width: 76px;
    text-align: right;
    font-size: 24px;
  }

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

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

  .page-about .ab-lines .ab-line-card {
    padding: 20px 16px;
    border-right: 1px solid var(--hair);
    border-bottom: 1px solid var(--hair);
  }

  .page-about .ab-lines .ab-line-card:nth-last-child(-n+2) {
    border-bottom: 1px solid var(--hair);
  }

  .page-about .ab-lines .ab-line-card:last-child {
    border-right: 0;
  }

  .page-about .ab-next__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: center;
    gap: clamp(36px, 5vw, 72px);
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .ab-toc__list a {
    transition: none;
  }
}
</final_solution>