.page-about {
  --ab-line-x: 9px;
  --ab-tl-gap: clamp(18px, 4vw, 32px);
}

/* ===== 首屏 ===== */
.page-about .ab-hero {
  position: relative;
  overflow: hidden;
}

.page-about .ab-hero__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-about .ab-hero__head {
  min-width: 0;
}

.page-about .ab-hero__head .pb-h1 {
  max-width: 15ch;
}

.page-about .ab-hero__head .pb-lead {
  max-width: 46ch;
  margin-top: clamp(14px, 1.8vw, 20px);
}

.page-about .ab-hero__media {
  min-width: 0;
}

@media (min-width: 940px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.88fr);
    align-items: end;
  }
}

/* ===== 首屏数据条 ===== */
.page-about .ab-stats {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .ab-stats__item {
  background: var(--ink-900);
  padding: clamp(16px, 2vw, 24px) clamp(14px, 1.6vw, 20px);
  transition: background var(--dur) var(--ease);
}

.page-about .ab-stats__item:hover,
.page-about .ab-stats__item:focus-within {
  background: var(--ink-800);
}

.page-about .ab-stats__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-about .ab-stats__unit {
  font-size: 0.48em;
  margin-left: 3px;
  color: var(--lime-soft);
  letter-spacing: 0;
}

.page-about .ab-stats__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
  letter-spacing: 0.04em;
}

@media (min-width: 780px) {
  .page-about .ab-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ===== 起点 ===== */
.page-about .ab-origin__inner {
  max-width: 68ch;
  border-left: 1px solid var(--line-strong);
  padding-left: clamp(18px, 3vw, 40px);
}

.page-about .ab-origin__inner .pb-h2 {
  margin-top: 12px;
}

.page-about .ab-origin__inner p {
  margin-top: clamp(14px, 1.8vw, 20px);
  color: var(--text);
  line-height: 1.85;
  max-width: 38em;
}

.page-about .ab-origin__inner p + p {
  margin-top: clamp(12px, 1.6vw, 18px);
}

/* ===== 时间线 ===== */
.page-about .ab-track__intro {
  max-width: 40em;
  margin-top: clamp(12px, 1.6vw, 18px);
  color: var(--mist);
  line-height: 1.85;
}

.page-about .ab-timeline {
  position: relative;
  list-style: none;
  margin: clamp(28px, 4vw, 52px) 0 0;
  padding: 0 0 0 calc(var(--ab-line-x) + var(--ab-tl-gap));
}

.page-about .ab-timeline::before {
  content: "";
  position: absolute;
  left: var(--ab-line-x);
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(242, 201, 76, 0.34) 55%, rgba(242, 201, 76, 0) 100%);
}

.page-about .ab-timeline__item {
  position: relative;
  padding-bottom: clamp(26px, 3.6vw, 44px);
}

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

.page-about .ab-timeline__item::before {
  content: "";
  position: absolute;
  top: 12px;
  left: calc(-1 * var(--ab-tl-gap) - 5px);
  width: 10px;
  height: 10px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 4px rgba(242, 201, 76, 0.08);
  transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .ab-timeline__item:hover::before {
  border-color: var(--lime);
  box-shadow: 0 0 0 6px rgba(182, 255, 59, 0.12);
}

.page-about .ab-timeline__year {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 44px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold);
  margin-bottom: 6px;
}

.page-about .ab-timeline__body {
  min-width: 0;
}

.page-about .ab-timeline__body p {
  margin-top: 8px;
  color: var(--mist);
  line-height: 1.85;
  max-width: 42em;
}

@media (min-width: 820px) {
  .page-about .ab-timeline__item {
    display: grid;
    grid-template-columns: 136px minmax(0, 1fr);
    column-gap: clamp(16px, 2.6vw, 36px);
    align-items: start;
  }

  .page-about .ab-timeline__year {
    margin-bottom: 0;
    padding-top: 2px;
  }
}

/* ===== 团队分工 ===== */
.page-about .ab-team__intro {
  max-width: 40em;
  margin-top: clamp(12px, 1.6vw, 18px);
  color: var(--mist);
  line-height: 1.85;
}

.page-about .ab-team__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-about .ab-team__media {
  min-width: 0;
}

.page-about .ab-team__tabs {
  min-width: 0;
}

.page-about .ab-team__tabs .pb-tabs__bar {
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .ab-team__panel h3 {
  margin-bottom: 12px;
}

.page-about .ab-team__panel p {
  color: var(--text);
  line-height: 1.85;
  max-width: 40em;
}

.page-about .ab-team__list {
  list-style: none;
  margin: clamp(14px, 2vw, 22px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .ab-team__list li {
  position: relative;
  padding-left: 20px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.7;
}

.page-about .ab-team__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--lime);
}

@media (min-width: 900px) {
  .page-about .ab-team__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }
}

/* ===== 协作网络 ===== */
.page-about .ab-network__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
}

.page-about .ab-network__media {
  min-width: 0;
}

.page-about .ab-network__body {
  min-width: 0;
}

.page-about .ab-network__body .pb-h2 {
  margin-top: 12px;
}

.page-about .ab-network__body p {
  margin-top: clamp(12px, 1.6vw, 18px);
  color: var(--text);
  line-height: 1.85;
  max-width: 40em;
}

.page-about .ab-network__list {
  list-style: none;
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .ab-network__item {
  background: var(--ink-900);
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 20px);
  padding: 14px clamp(12px, 1.6vw, 18px);
  transition: background var(--dur) var(--ease);
}

.page-about .ab-network__item:hover {
  background: var(--ink-800);
}

.page-about .ab-network__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 500;
  line-height: 1;
  color: var(--lime);
  min-width: 2.6em;
}

.page-about .ab-network__text {
  color: var(--mist);
  font-size: 15px;
  line-height: 1.7;
}

.page-about .ab-network__cta {
  font-size: 15px;
  color: var(--mist);
}

.page-about .ab-network__cta a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(182, 255, 59, 0.42);
  transition: border-color var(--dur) var(--ease);
}

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

.page-about .ab-network__cta a:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

@media (min-width: 900px) {
  .page-about .ab-network__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: center;
  }
}

/* ===== 一年里的三个节奏 ===== */
.page-about .ab-season__intro {
  max-width: 40em;
  margin-top: clamp(12px, 1.6vw, 18px);
  color: var(--mist);
  line-height: 1.85;
}

.page-about .ab-season__list {
  list-style: none;
  margin: clamp(24px, 3.4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .ab-season__row {
  background: var(--ink-900);
  padding: clamp(20px, 2.6vw, 30px) clamp(2px, 1vw, 12px);
  display: grid;
  gap: 12px;
  transition: background var(--dur) var(--ease);
}

.page-about .ab-season__row:hover {
  background: var(--ink-800);
}

.page-about .ab-season__detail .pb-h3 {
  margin-bottom: 8px;
}

.page-about .ab-season__detail p {
  color: var(--mist);
  line-height: 1.85;
  max-width: 42em;
}

@media (min-width: 760px) {
  .page-about .ab-season__row {
    grid-template-columns: 150px minmax(0, 1fr);
    column-gap: clamp(16px, 3vw, 40px);
    align-items: start;
  }
}

/* ===== 下一步入口 ===== */
.page-about .ab-next {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-about .ab-next__item {
  background: var(--ink-900);
  padding: clamp(18px, 2.2vw, 26px);
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-decoration: none;
  color: inherit;
  transition: background var(--dur) var(--ease);
}

.page-about .ab-next__item:hover {
  background: var(--ink-800);
}

.page-about .ab-next__item:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-about .ab-next__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-about .ab-next__title {
  font-size: 17px;
  font-weight: 600;
  color: var(--paper);
  letter-spacing: 0.01em;
}

.page-about .ab-next__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

@media (min-width: 720px) {
  .page-about .ab-next {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-about .ab-next {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ===== 动效降级 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-about .ab-stats__item,
  .page-about .ab-timeline__item::before,
  .page-about .ab-network__item,
  .page-about .ab-season__row,
  .page-about .ab-next__item {
    transition: none;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>