.page-about {
  --ab-radius: 0px;
  --ab-line: 1px solid var(--line);
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  padding: 20px 0 4px;
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  padding: 16px 0 8px;
  overflow: hidden;
}

.page-about .ab-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-about .ab-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 7vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  margin: 10px 0 18px;
  color: var(--white);
  text-wrap: balance;
}

.page-about .ab-hero__lead {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--gray);
  max-width: 60ch;
  margin: 0 0 28px;
}

.page-about .ab-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: var(--ab-line);
  margin: 0;
}

.page-about .ab-hero__stat {
  background: var(--ink-2);
  padding: 16px 18px;
  position: relative;
}

.page-about .ab-hero__stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent 85%);
}

.page-about .ab-hero__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.4rem, 4vw, 2.05rem);
  color: var(--yellow);
  letter-spacing: -0.02em;
  margin: 0 0 4px;
}

.page-about .ab-hero__label {
  margin: 0;
  font-size: 0.78rem;
  color: var(--gray);
  letter-spacing: 0.04em;
}

.page-about .ab-hero__media {
  margin: 0;
  position: relative;
  border: var(--ab-line);
  background: var(--ink-2);
}

.page-about .ab-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(180deg, rgba(0, 230, 210, 0.06) 0 1px, transparent 1px 5px),
    linear-gradient(135deg, rgba(0, 230, 210, 0.14), transparent 42%, rgba(255, 45, 122, 0.12));
  mix-blend-mode: screen;
}

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

.page-about .ab-hero__media .media__cap {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gray);
  border-top: var(--ab-line);
  margin: 0;
}

/* ---------- 通用区块微调 ---------- */
.page-about .section {
  padding: 64px 0 8px;
}

.page-about .section__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4.6vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 6px 0 10px;
  color: var(--white);
}

.page-about .section__kicker {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* ---------- 我们是谁 ---------- */
.page-about .ab-intro__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .ab-intro__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.4rem);
  line-height: 1.12;
  margin: 6px 0 16px;
  color: var(--white);
}

.page-about .ab-intro__main p {
  color: var(--gray);
  line-height: 1.85;
  font-size: 1rem;
  margin: 0 0 16px;
  max-width: 68ch;
}

.page-about .ab-note {
  border: var(--ab-line);
  border-left: 3px solid var(--magenta);
  background: var(--ink-2);
  padding: 22px 20px;
  box-shadow: var(--shadow-1);
}

.page-about .ab-note__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  color: var(--white);
  margin: 0 0 14px;
}

.page-about .ab-note__list {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  display: grid;
  gap: 10px;
}

.page-about .ab-note__list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--gray);
}

.page-about .ab-note__list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--cyan);
}

.page-about .ab-note__foot {
  margin: 0;
  font-size: 0.76rem;
  color: var(--gray);
}

.page-about .ab-note__foot a {
  color: var(--cyan);
}

/* ---------- 三条内容线 ---------- */
.page-about .ab-lanes__lead {
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.8;
  max-width: 62ch;
  margin: 0 0 32px;
}

.page-about .ab-lanes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: var(--ab-line);
}

.page-about .ab-lane {
  position: relative;
  padding: 26px 22px 28px;
  border-bottom: var(--ab-line);
  background: linear-gradient(180deg, rgba(0, 230, 210, 0.03), transparent 55%);
  transition: background 0.24s ease, border-color 0.24s ease;
}

.page-about .ab-lane::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--line);
  transition: background 0.24s ease;
}

.page-about .ab-lane:hover::before,
.page-about .ab-lane:focus-within::before {
  background: var(--magenta);
}

.page-about .ab-lane__idx {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--yellow);
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.page-about .ab-lane__title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: -0.005em;
  color: var(--white);
  margin: 0 0 8px;
}

.page-about .ab-lane__rhythm {
  font-size: 0.74rem;
  color: var(--cyan);
  letter-spacing: 0.02em;
  margin: 0 0 14px;
}

.page-about .ab-lane__body {
  color: var(--gray);
  font-size: 0.92rem;
  line-height: 1.78;
  margin: 0 0 18px;
}

.page-about .ab-lane__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .ab-lane__link:hover {
  color: var(--magenta);
  border-color: var(--magenta);
}

/* ---------- 沿革 ---------- */
.page-about .ab-chron {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 10px;
}

.page-about .ab-chron__stamps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}

.page-about .ab-chron__stamp {
  appearance: none;
  cursor: pointer;
  background: var(--ink-2);
  color: var(--gray);
  border: var(--ab-line);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  padding: 9px 16px;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-about .ab-chron__stamp:hover {
  border-color: var(--cyan);
  color: var(--white);
}

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

.page-about .ab-chron__list {
  display: grid;
  gap: 18px;
  position: relative;
  padding-left: 18px;
}

.page-about .ab-chron__list::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--line) 70%, transparent);
}

.page-about .ab-chron__entry {
  position: relative;
  background: var(--ink-2);
  border: var(--ab-line);
  border-left: 3px solid var(--line);
  padding: 20px 20px 22px;
  box-shadow: var(--shadow-1);
  transition: border-left-color 0.24s ease, transform 0.24s ease;
}

.page-about .ab-chron__entry::before {
  content: "";
  position: absolute;
  left: -19px;
  top: 26px;
  width: 9px;
  height: 9px;
  background: var(--ink);
  border: 2px solid var(--cyan);
  border-radius: 50%;
}

.page-about .ab-chron__entry:hover {
  border-left-color: var(--magenta);
  transform: translateX(2px);
}

.page-about .ab-chron__entry[hidden] {
  display: none;
}

.page-about .ab-chron__year {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--yellow);
  letter-spacing: 0.06em;
  margin: 0 0 6px;
}

.page-about .ab-chron__head {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--white);
  margin: 0 0 10px;
  letter-spacing: 0;
}

.page-about .ab-chron__entry p {
  color: var(--gray);
  font-size: 0.92rem;
  line-height: 1.8;
  margin: 0;
}

.page-about .ab-chron__empty {
  color: var(--gray);
  font-size: 0.85rem;
  padding: 12px 0;
}

.page-about .ab-chron__media {
  margin: 30px 0 0;
  border: var(--ab-line);
  background: var(--ink-2);
  max-width: 520px;
  position: relative;
  overflow: hidden;
}

.page-about .ab-chron__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(180deg, rgba(0, 230, 210, 0.05) 0 1px, transparent 1px 6px);
}

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

.page-about .ab-chron__media .media__cap {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gray);
  border-top: var(--ab-line);
  margin: 0;
}

/* ---------- 团队分工 ---------- */
.page-about .ab-crew__lead {
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.8;
  max-width: 64ch;
  margin: 0 0 30px;
}

.page-about .ab-crew__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-about .ab-crew__chart {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .ab-crew__row {
  position: relative;
  display: grid;
  grid-template-columns: 96px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: var(--ab-line);
  background: var(--ink-2);
  transition: border-color 0.22s ease;
}

.page-about .ab-crew__row:hover {
  border-color: var(--cyan);
}

.page-about .ab-crew__name {
  font-size: 0.88rem;
  color: var(--white);
}

.page-about .ab-crew__bar {
  position: relative;
  display: block;
  height: 8px;
  background: rgba(30, 42, 58, 0.9);
  overflow: hidden;
}

.page-about .ab-crew__bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--cyan-dim));
}

.page-about .ab-crew__row:nth-child(1) .ab-crew__bar i { width: 30.8%; }
.page-about .ab-crew__row:nth-child(2) .ab-crew__bar i { width: 23.1%; background: linear-gradient(90deg, var(--magenta), #b81f57); }
.page-about .ab-crew__row:nth-child(3) .ab-crew__bar i { width: 26.9%; background: linear-gradient(90deg, var(--yellow), #c9a800); }
.page-about .ab-crew__row:nth-child(4) .ab-crew__bar i { width: 19.2%; background: linear-gradient(90deg, var(--green), #1f9c6b); }

.page-about .ab-crew__num {
  font-size: 0.82rem;
  color: var(--gray);
  min-width: 44px;
  text-align: right;
}

.page-about .ab-crew__hint {
  grid-column: 1 / -1;
  margin: 6px 0 0;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--gray);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.28s ease, opacity 0.24s ease, margin 0.24s ease;
}

.page-about .ab-crew__row:hover .ab-crew__hint,
.page-about .ab-crew__row:focus-within .ab-crew__hint {
  max-height: 60px;
  opacity: 1;
}

.page-about .ab-crew__flow {
  border: var(--ab-line);
  border-top: 3px solid var(--cyan);
  background: var(--ink-2);
  padding: 22px 20px 24px;
  box-shadow: var(--shadow-1);
}

.page-about .ab-crew__flow-title {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  margin: 0 0 16px;
}

.page-about .ab-crew__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
  display: grid;
  gap: 14px;
}

.page-about .ab-crew__steps li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 12px;
  align-items: start;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--gray);
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line);
}

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

.page-about .ab-crew__steps .mono {
  color: var(--yellow);
  font-size: 0.82rem;
  font-weight: 700;
}

/* ---------- 节点 ---------- */
.page-about .ab-nodes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-about .ab-nodes__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.4rem);
  line-height: 1.12;
  color: var(--white);
  margin: 6px 0 16px;
}

.page-about .ab-nodes__copy p {
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.8;
  margin: 0 0 20px;
  max-width: 62ch;
}

.page-about .ab-nodes__list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .ab-nodes__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: var(--ab-line);
  background: var(--ink-2);
  font-size: 0.9rem;
  color: var(--white);
  transition: border-color 0.22s ease;
}

.page-about .ab-nodes__list li:hover {
  border-color: var(--cyan);
}

.page-about .ab-nodes__list .mono {
  margin-left: auto;
  font-size: 0.72rem;
  color: var(--gray);
  letter-spacing: 0.02em;
}

.page-about .ab-nodes__foot {
  font-size: 0.76rem;
  color: var(--gray);
  margin: 0;
}

.page-about .ab-nodes__foot a {
  color: var(--cyan);
}

.page-about .ab-nodes__media {
  margin: 0;
  border: var(--ab-line);
  background: var(--ink-2);
  position: relative;
  overflow: hidden;
}

.page-about .ab-nodes__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(200deg, rgba(255, 45, 122, 0.14), transparent 45%, rgba(0, 230, 210, 0.1));
}

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

.page-about .ab-nodes__media .media__cap {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gray);
  border-top: var(--ab-line);
  margin: 0;
}

/* ---------- 更新节奏 ---------- */
.page-about .ab-rhythm__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: var(--ab-line);
  margin-top: 12px;
}

.page-about .ab-rhythm__item {
  background: var(--ink-2);
  padding: 24px 22px 26px;
  position: relative;
}

.page-about .ab-rhythm__item::after {
  content: "";
  position: absolute;
  left: 22px;
  top: 0;
  width: 34px;
  height: 2px;
  background: var(--cyan);
}

.page-about .ab-rhythm__num {
  font-size: clamp(1.2rem, 3.4vw, 1.6rem);
  font-weight: 700;
  color: var(--yellow);
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}

.page-about .ab-rhythm__label {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--white);
  margin: 0 0 10px;
  letter-spacing: 0;
}

.page-about .ab-rhythm__item p {
  color: var(--gray);
  font-size: 0.88rem;
  line-height: 1.75;
  margin: 0;
}

/* ---------- 协作 ---------- */
.page-about .ab-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-about .ab-partners__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.4rem);
  line-height: 1.12;
  color: var(--white);
  margin: 6px 0 16px;
}

.page-about .ab-partners__main p {
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.82;
  max-width: 64ch;
  margin: 0 0 20px;
}

.page-about .ab-partners__tags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .ab-partners__aside {
  border: var(--ab-line);
  border-left: 3px solid var(--cyan);
  background: var(--ink-2);
  padding: 22px 20px;
}

.page-about .ab-partners__aside-title {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
  margin: 0 0 16px;
}

.page-about .ab-partners__qa {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-about .ab-partners__qa dt {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--white);
  margin: 0 0 4px;
}

.page-about .ab-partners__qa dd {
  margin: 0;
  color: var(--gray);
  font-size: 0.86rem;
  line-height: 1.68;
}

/* ---------- CTA ---------- */
.page-about .ab-cta {
  padding-bottom: 72px;
}

.page-about .ab-cta__box {
  border: 1px solid var(--cyan);
  background:
    linear-gradient(135deg, rgba(0, 230, 210, 0.08), transparent 46%, rgba(255, 45, 122, 0.08)),
    var(--ink-2);
  padding: 30px 24px 32px;
  display: grid;
  gap: 26px;
}

.page-about .ab-cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.3rem);
  line-height: 1.12;
  color: var(--white);
  margin: 6px 0 14px;
}

.page-about .ab-cta__copy p {
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.8;
  max-width: 62ch;
  margin: 0;
}

.page-about .ab-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .ab-cta__contact {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-top: 22px;
  border-top: 1px dashed var(--line);
}

.page-about .ab-cta__contact dt {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  margin: 0 0 4px;
}

.page-about .ab-cta__contact dd {
  margin: 0;
  font-size: 0.9rem;
  color: var(--white);
  word-break: break-word;
}

.page-about .ab-cta__contact a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .ab-cta__contact a:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-about .ab-cta__contact .copy[data-copied="true"] {
  color: var(--green);
  border-color: var(--green);
}

/* ---------- 版式与响应式 ---------- */
@media (min-width: 720px) {
  .page-about .ab-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .ab-intro__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 40px;
  }
  .page-about .ab-lanes__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-left: var(--ab-line);
  }
  .page-about .ab-lane {
    border-right: var(--ab-line);
    padding: 30px 24px 32px;
  }
  .page-about .ab-chron {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }
  .page-about .ab-chron__stamps {
    position: sticky;
    top: calc(var(--header-total) + 16px);
    flex-direction: column;
    flex-wrap: nowrap;
  }
  .page-about .ab-chron__stamp {
    width: 100%;
    text-align: left;
  }
  .page-about .ab-crew__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 30px;
  }
  .page-about .ab-nodes__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 38px;
  }
  .page-about .ab-rhythm__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .ab-partners__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 36px;
  }
  .page-about .ab-cta__box {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 30px 40px;
    padding: 38px 34px 40px;
  }
  .page-about .ab-cta__actions {
    grid-column: 1 / -1;
  }
  .page-about .ab-cta__contact {
    grid-column: 1 / -1;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 1024px) {
  .page-about .ab-hero {
    padding: 24px 0 12px;
  }
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 52px;
    align-items: stretch;
  }
  .page-about .ab-hero__media {
    align-self: stretch;
    display: flex;
    flex-direction: column;
  }
  .page-about .ab-hero__media img {
    flex: 1 1 auto;
    height: 100%;
    aspect-ratio: auto;
    min-height: 380px;
  }
  .page-about .section {
    padding: 76px 0 10px;
  }
  .page-about .ab-chron {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 40px;
  }
  .page-about .ab-rhythm__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-lane,
  .page-about .ab-chron__entry,
  .page-about .ab-crew__row,
  .page-about .ab-nodes__list li {
    transition: none;
  }
  .page-about .ab-crew__hint {
    transition: none;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>