.page-about {
  --ab-line: var(--line-soft);
  --ab-gap: clamp(16px, 3vw, 32px);
}

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

.page-about a:focus-visible,
.page-about button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-about > .wb-breadcrumb {
  margin: 18px 0 4px;
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  display: grid;
  gap: var(--ab-gap);
  padding: 26px 0 34px;
  border-top: 1px solid var(--line);
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 7px;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 12px);
  opacity: 0.75;
}

.page-about .ab-hero__title {
  margin: 14px 0 0;
  max-width: 22ch;
  font-size: clamp(1.9rem, 6vw, 3.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-about .ab-hero__lead {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .ab-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 24px 0 0;
  padding: 1px;
  list-style: none;
  background: var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .ab-stat {
  background: var(--ink-900);
  padding: 14px 16px;
}

.page-about .ab-stat__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--faint);
}

.page-about .ab-stat__v {
  display: block;
  margin-top: 6px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

.page-about .ab-stat--accent .ab-stat__v {
  color: var(--cyan);
}

.page-about .ab-hero__card {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-900));
  overflow: hidden;
}

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

.page-about .ab-hero__card figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--ab-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--faint);
}

/* ---------- 区块骨架 ---------- */
.page-about .ab-section {
  padding: clamp(38px, 6vw, 64px) 0;
  border-top: 1px solid var(--line);
}

.page-about .ab-head {
  max-width: 60ch;
}

.page-about .ab-head__title {
  margin: 12px 0 0;
  font-size: clamp(1.45rem, 3.6vw, 2.15rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-about .ab-head__text {
  margin: 14px 0 0;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 档案条目 ---------- */
.page-about .ab-archive {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ab-line);
}

.page-about .ab-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--ab-line);
}

.page-about .ab-row__no {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-about .ab-row__title {
  margin: 0 0 7px;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text);
  transition: color 0.2s var(--ease);
}

.page-about .ab-row__text {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .ab-row:hover .ab-row__title {
  color: var(--cyan);
}

/* ---------- 历程 ---------- */
.page-about .ab-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-jump a {
  display: inline-block;
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.18s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .ab-jump a:hover,
.page-about .ab-jump a:focus-visible {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

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

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

.page-about .ab-node::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 24px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--cyan);
}

.page-about .ab-node--now::before {
  background: var(--amber);
  border-color: var(--amber);
  box-shadow: 0 0 0 4px var(--amber-soft);
}

.page-about .ab-node__year {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-about .ab-node__card {
  padding: 15px 17px 17px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--ink-800);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .ab-node__card:hover,
.page-about .ab-node:target .ab-node__card {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-about .ab-node__title {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
}

.page-about .ab-node__text {
  margin: 0 0 12px;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .ab-timeline__figure {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink-800);
}

.page-about .ab-timeline__figure img {
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-about .ab-timeline__figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--ab-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--faint);
}

/* ---------- 团队 ---------- */
.page-about .ab-team {
  display: grid;
  gap: 14px;
  margin: 26px 0 0;
}

.page-about .ab-teamcard {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: linear-gradient(170deg, var(--ink-800), var(--ink-900));
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .ab-teamcard:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-about .ab-teamcard__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 2rem;
  line-height: 1;
  color: var(--cyan);
}

.page-about .ab-teamcard__num small {
  margin-left: 6px;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--muted);
}

.page-about .ab-teamcard__name {
  margin: 12px 0 8px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.page-about .ab-teamcard__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .ab-rhythm {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ab-line);
}

.page-about .ab-rhythm li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--ab-line);
}

.page-about .ab-rhythm__tag {
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--amber);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.page-about .ab-rhythm__text {
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .ab-rhythm__note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--magenta);
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 地区与联络 ---------- */
.page-about .ab-region {
  display: grid;
  gap: 22px;
  margin: 26px 0 0;
}

.page-about .ab-region__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--ink-800);
}

.page-about .ab-region__figure img {
  width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-about .ab-region__figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--ab-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--faint);
}

.page-about .ab-contact {
  margin: 0;
  border-top: 1px solid var(--ab-line);
}

.page-about .ab-contact__row {
  display: grid;
  gap: 5px;
  padding: 13px 0;
  border-bottom: 1px solid var(--ab-line);
}

.page-about .ab-contact__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--faint);
}

.page-about .ab-contact__v {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--text);
  word-break: break-word;
}

.page-about .ab-contact__v .wb-copybtn {
  margin-left: 8px;
  vertical-align: middle;
}

.page-about .ab-region__note {
  margin: 16px 0 18px;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 资质 ---------- */
.page-about .ab-trust {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-about .ab-trust li {
  padding: 8px 0 8px 14px;
  border-left: 2px solid var(--cyan);
}

.page-about .ab-trust strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
}

.page-about .ab-trust span {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 结尾入口 ---------- */
.page-about .ab-cta {
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: linear-gradient(125deg, var(--ink-800), var(--ink-900) 62%, rgba(255, 79, 154, 0.14));
}

.page-about .ab-cta__title {
  margin: 0;
  font-size: clamp(1.3rem, 3.2vw, 1.85rem);
  font-weight: 900;
  line-height: 1.3;
  color: var(--text);
}

.page-about .ab-cta__text {
  margin: 0;
  max-width: 52ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--muted);
}

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

.page-about .wb-topbtn {
  margin-top: 20px;
}

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

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

  .page-about .ab-trust {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 28px;
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
    padding: 34px 0 40px;
  }

  .page-about .ab-hero__card {
    margin-top: 6px;
  }

  .page-about .ab-track {
    padding-left: 0;
    border-left: 0;
    gap: 22px;
  }

  .page-about .ab-track::before {
    content: "";
    position: absolute;
    left: 124px;
    top: 10px;
    bottom: 10px;
    width: 1px;
    background: var(--line);
  }

  .page-about .ab-node {
    padding-left: 152px;
  }

  .page-about .ab-node::before {
    left: 120px;
    top: 26px;
  }

  .page-about .ab-node__year {
    position: absolute;
    left: 0;
    top: 22px;
    width: 100px;
    margin: 0;
    text-align: right;
  }

  .page-about .ab-region {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: start;
    gap: 30px;
  }

  .page-about .ab-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px 30px;
    padding: 28px 30px;
  }

  .page-about .ab-cta__title,
  .page-about .ab-cta__text {
    grid-column: 1;
  }

  .page-about .ab-cta__links {
    grid-column: 2;
    grid-row: 1 / span 2;
    justify-content: flex-end;
  }
}

@media (min-width: 1180px) {
  .page-about .ab-head {
    max-width: 66ch;
  }

  .page-about .ab-hero__lead {
    font-size: 1.05rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-row__title,
  .page-about .ab-teamcard,
  .page-about .ab-node__card,
  .page-about .ab-jump a {
    transition: none;
  }

  .page-about .ab-teamcard:hover,
  .page-about .ab-node__card:hover,
  .page-about .ab-node:target .ab-node__card {
    transform: none;
  }
}
<<<END>>>