.page-about {
  --ab-rule: rgba(16, 42, 67, 0.14);
  --ab-rule-soft: rgba(16, 42, 67, 0.07);
  --ab-shadow: 0 20px 44px -30px rgba(7, 26, 43, 0.6);
  background: var(--sand);
  color: var(--blue);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: clip;
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--blue);
  margin: 0;
}

.page-about p {
  margin: 0;
}

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

/* ---------- 面包屑 ---------- */
.page-about .ab-crumb-bar {
  background: var(--snow);
  padding: 0.9rem 0 0.2rem;
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  background: linear-gradient(178deg, var(--snow) 0%, var(--snow) 44%, var(--mist) 100%);
  padding: 1.5rem 0 clamp(2.5rem, 6vw, 4.25rem);
  border-bottom: 1px solid var(--ab-rule);
}

.page-about .ab-hero__grid {
  display: grid;
  gap: 2.2rem;
}

.page-about .ab-hero__lead h1 {
  font-size: clamp(2.15rem, 6.6vw, 4rem);
  margin: 0.5rem 0 1.1rem;
  max-width: 16em;
}

.page-about .ab-hero__intro {
  font-size: 1rem;
  color: var(--blue);
  opacity: 0.82;
  max-width: 44em;
}

.page-about .ab-hero__intro + .ab-hero__intro {
  margin-top: 0.85rem;
}

.page-about .ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.page-about .ab-hero__actions .btn {
  min-height: 44px;
}

/* 数据面板 */
.page-about .ab-panel {
  position: relative;
  background: var(--blue);
  color: var(--mist);
  border-radius: var(--r-md);
  padding: 1.7rem 1.35rem 1.2rem;
  box-shadow: var(--ab-shadow);
  overflow: hidden;
}

.page-about .ab-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: repeating-linear-gradient(90deg, var(--gold) 0 12px, transparent 12px 24px);
}

.page-about .ab-panel::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 210px;
  height: 210px;
  border: 1px dashed rgba(217, 164, 65, 0.32);
  border-radius: 50%;
  pointer-events: none;
}

.page-about .ab-panel__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-sand);
  margin-bottom: 0.5rem;
}

.page-about .ab-panel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  z-index: 1;
}

.page-about .ab-panel__list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.72rem 0;
  border-bottom: 1px dashed rgba(191, 227, 224, 0.22);
}

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

.page-about .ab-panel__k {
  font-size: 0.86rem;
  color: var(--snow);
  opacity: 0.78;
}

.page-about .ab-panel__v {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gold-sand);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-about .ab-panel__v em {
  font-style: normal;
  font-size: 0.72rem;
  margin-left: 0.18rem;
  color: var(--snow);
  opacity: 0.8;
}

/* ---------- 章节标题 ---------- */
.page-about .ab-sec-head {
  max-width: 62ch;
  margin-bottom: clamp(1.6rem, 4vw, 2.6rem);
}

.page-about .ab-sec-head h2 {
  font-size: clamp(1.6rem, 3.8vw, 2.5rem);
  margin: 0.4rem 0 0.75rem;
}

.page-about .ab-sec-head__lead {
  color: var(--gray);
  font-size: 1rem;
}

/* ---------- 01 时间轴 ---------- */
.page-about .ab-track {
  background: var(--mist);
  border-bottom: 1px solid var(--ab-rule-soft);
}

.page-about .ab-axis {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.5rem;
  border-left: 2px solid var(--gold-sand);
  display: grid;
  gap: 1.9rem;
}

.page-about .ab-axis__item {
  position: relative;
}

.page-about .ab-axis__dot {
  position: absolute;
  left: calc(-1.5rem - 7px);
  top: 0.6rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px var(--mist);
}

.page-about .ab-axis__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold-deep);
  font-variant-numeric: tabular-nums;
}

.page-about .ab-axis__item h3 {
  font-size: 1.04rem;
  margin: 0.18rem 0 0.4rem;
}

.page-about .ab-axis__item p {
  font-size: 0.93rem;
  color: var(--gray);
}

/* ---------- 宽幅地貌图 ---------- */
.page-about .ab-banner {
  margin: 0;
  background: var(--ink);
}

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

.page-about .ab-banner figcaption {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--snow);
  background: var(--ink);
  padding: 0.85rem var(--gutter);
  opacity: 0.9;
}

/* ---------- 02 内容生产 ---------- */
.page-about .ab-craft {
  background: var(--sand);
}

.page-about .ab-craft__grid {
  display: grid;
  gap: 2rem;
}

.page-about .ab-craft__body h2 {
  font-size: clamp(1.6rem, 3.8vw, 2.4rem);
  margin: 0.4rem 0 0.85rem;
}

.page-about .ab-craft__lead {
  color: var(--blue);
  opacity: 0.82;
  font-size: 1rem;
}

.page-about .ab-craft__list {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
}

.page-about .ab-craft__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem;
}

.page-about .ab-craft__no {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  margin-top: 0.15rem;
  border-radius: var(--r-pill);
  background: var(--teal);
  color: var(--sand);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
}

.page-about .ab-craft__list h3 {
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.page-about .ab-craft__list p {
  font-size: 0.93rem;
  color: var(--gray);
}

.page-about .ab-craft__note {
  margin-top: 1.6rem;
  padding: 1rem 1.1rem;
  background: var(--mist);
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: 0.9rem;
  color: var(--blue);
  opacity: 0.9;
}

.page-about .ab-shot {
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--mist);
  border: 1px solid var(--ab-rule);
}

.page-about .ab-shot img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 03 服务范围 ---------- */
.page-about .ab-reach {
  background: var(--sand);
  padding-top: 0;
}

.page-about .ab-reach__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ab-rule);
  border: 1px solid var(--ab-rule);
  border-radius: var(--r-md);
  overflow: hidden;
  margin-bottom: 1.8rem;
}

.page-about .ab-reach__stat {
  background: var(--snow);
  padding: 1.25rem 1rem;
}

.page-about .ab-reach__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  font-weight: 700;
  color: var(--blue);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.page-about .ab-reach__stat p {
  margin-top: 0.25rem;
  font-size: 0.85rem;
  color: var(--blue);
  opacity: 0.72;
}

.page-about .ab-scenes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .ab-scene {
  background: var(--mist);
  border-radius: var(--r-md);
  border-left: 4px solid var(--teal);
  padding: 1.3rem 1.2rem;
}

.page-about .ab-scene__no {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--gold-deep);
}

.page-about .ab-scene h3 {
  font-size: 1.02rem;
  margin: 0.35rem 0 0.4rem;
}

.page-about .ab-scene p:last-child {
  font-size: 0.92rem;
  color: var(--gray);
}

/* ---------- 04 地域 ---------- */
.page-about .ab-region {
  background: linear-gradient(180deg, var(--snow) 0%, var(--mist) 100%);
  border-block: 1px solid var(--ab-rule-soft);
}

.page-about .ab-region__grid {
  display: grid;
  gap: 1.8rem;
}

.page-about .ab-region__frame {
  border-radius: var(--r-lg);
  border-color: rgba(16, 42, 67, 0.2);
  background: var(--blue);
}

.page-about .ab-region__frame img {
  aspect-ratio: 12 / 7;
}

.page-about .ab-region__body h2 {
  font-size: clamp(1.6rem, 3.8vw, 2.4rem);
  margin: 0.4rem 0 0.9rem;
}

.page-about .ab-region__body p {
  color: var(--blue);
  opacity: 0.84;
  font-size: 0.98rem;
}

.page-about .ab-region__body p + p {
  margin-top: 0.9rem;
}

.page-about .ab-region__actions {
  margin-top: 1.4rem;
}

.page-about .ab-region__actions .btn {
  min-height: 44px;
}

/* ---------- 05 团队与合作 ---------- */
.page-about .ab-team {
  background: var(--sand);
}

.page-about .ab-plates {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.page-about .ab-plate {
  background: var(--mist);
  border-radius: var(--r-sm);
  border-top: 3px solid var(--gold);
  padding: 1.15rem 1.1rem 1.25rem;
}

.page-about .ab-plate__no {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--gold-deep);
}

.page-about .ab-plate h3 {
  font-size: 1rem;
  margin: 0.4rem 0 0.4rem;
}

.page-about .ab-plate p {
  font-size: 0.9rem;
  color: var(--gray);
}

.page-about .ab-net {
  margin-top: 1.6rem;
  background: var(--snow);
  border-radius: var(--r-md);
  padding: 1.4rem 1.2rem;
  display: grid;
  gap: 1.1rem;
}

.page-about .ab-net__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.5rem 1rem;
}

.page-about .ab-net__label {
  font-size: 0.92rem;
  color: var(--blue);
}

.page-about .ab-net__num {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gold-deep);
  font-variant-numeric: tabular-nums;
}

.page-about .ab-net__track {
  grid-column: 1 / -1;
  display: block;
  height: 10px;
  border-radius: var(--r-pill);
  background: rgba(16, 42, 67, 0.1);
  overflow: hidden;
}

.page-about .ab-net__fill {
  display: block;
  height: 100%;
  border-radius: var(--r-pill);
}

.page-about .ab-net__fill--data {
  width: 100%;
  background: linear-gradient(90deg, var(--teal), var(--blue));
}

.page-about .ab-net__fill--media {
  width: 64%;
  background: linear-gradient(90deg, var(--gold), var(--orange));
}

.page-about .ab-net__note {
  font-size: 0.86rem;
  color: var(--gray);
  border-top: 1px dashed var(--ab-rule);
  padding-top: 0.9rem;
}

/* ---------- 06 公开记录 ---------- */
.page-about .ab-log {
  position: relative;
  overflow: hidden;
  background: var(--blue);
  color: var(--snow);
}

.page-about .ab-log::before {
  content: "";
  position: absolute;
  top: -150px;
  right: -70px;
  width: 320px;
  height: 320px;
  border: 2px dashed rgba(217, 164, 65, 0.32);
  border-radius: 50%;
  pointer-events: none;
}

.page-about .ab-log .ab-sec-head {
  position: relative;
  z-index: 1;
}

.page-about .ab-log h2 {
  color: var(--mist);
}

.page-about .ab-log .eyebrow {
  color: var(--gold-sand);
}

.page-about .ab-log .ab-sec-head__lead {
  color: rgba(191, 227, 224, 0.8);
}

.page-about .ab-log__list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .ab-log__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  padding: 1.25rem 0;
  border-top: 1px solid rgba(191, 227, 224, 0.18);
}

.page-about .ab-log__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .ab-log__no {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--gold);
  padding-top: 0.25rem;
}

.page-about .ab-log__item h3 {
  color: var(--mist);
  font-size: 1rem;
  margin-bottom: 0.3rem;
}

.page-about .ab-log__item p {
  font-size: 0.93rem;
  color: rgba(191, 227, 224, 0.82);
}

/* ---------- 结尾 ---------- */
.page-about .ab-cta {
  background: var(--snow);
}

.page-about .ab-cta__inner {
  background: var(--sand);
  border: 1px solid var(--ab-rule);
  border-radius: var(--r-lg);
  padding: clamp(1.5rem, 4vw, 2.6rem);
  display: grid;
  gap: 1.3rem;
}

.page-about .ab-cta__inner h2 {
  font-size: clamp(1.4rem, 3.2vw, 2rem);
  margin-bottom: 0.6rem;
}

.page-about .ab-cta__inner p {
  font-size: 0.95rem;
  color: var(--gray);
  max-width: 52em;
}

.page-about .ab-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-about .ab-cta__actions .btn {
  min-height: 44px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .ab-reach__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .ab-net {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.4rem 2rem;
  }

  .page-about .ab-net__note {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(290px, 1fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-about .ab-hero__lead h1 {
    font-size: clamp(2.6rem, 4.6vw, 4rem);
  }

  .page-about .ab-axis {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 1.2rem;
    padding: 2.7rem 0 0;
    border-left: 0;
    border-top: 2px solid var(--gold-sand);
  }

  .page-about .ab-axis__dot {
    left: 0;
    top: -2.7rem;
    transform: translateY(-50%);
    box-shadow: 0 0 0 4px var(--mist);
  }

  .page-about .ab-axis__item h3 {
    min-height: 2.2em;
  }

  .page-about .ab-craft__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
  }

  .page-about .ab-craft__media {
    position: sticky;
    top: 2rem;
  }

  .page-about .ab-region__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: center;
  }

  .page-about .ab-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 2rem;
  }

  .page-about .ab-cta__actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-craft__media {
    position: static;
  }
}
<<<END>>>