.page-about {
  --ab-stroke: linear-gradient(180deg, rgba(56, 225, 208, .85) 0%, rgba(56, 225, 208, .28) 44%, rgba(18, 58, 87, .04) 100%);
  display: block;
  padding-bottom: clamp(56px, 8vw, 120px);
}

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

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

/* ---------- 面包屑 ---------- */
.page-about .ab-crumb {
  margin-bottom: clamp(24px, 4vw, 44px);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  padding-top: clamp(96px, 13vw, 164px);
}

.page-about .ab-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
}

.page-about .ab-hero__title {
  margin: 14px 0 0;
  font-size: clamp(38px, 8.4vw, 104px);
  font-weight: 300;
  line-height: .96;
  letter-spacing: -.015em;
  color: var(--ink);
  word-break: keep-all;
}

.page-about .ab-hero__title em {
  font-style: normal;
  color: var(--mist);
}

.page-about .ab-hero__intro {
  margin: 0;
  max-width: 34em;
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.8;
  color: var(--ink);
}

.page-about .ab-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 44px);
  margin: clamp(28px, 4vw, 40px) 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--rule-soft);
}

.page-about .ab-hero__facts dt {
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-about .ab-hero__facts dd {
  margin: 0;
}

.page-about .ab-hero__banner {
  margin: clamp(36px, 6vw, 84px) 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 6;
}

.page-about .ab-hero__banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 章节标题 ---------- */
.page-about .ab-sec-head {
  max-width: 780px;
  margin-bottom: clamp(36px, 5vw, 64px);
}

.page-about .ab-sec-head h2 {
  margin: 14px 0 0;
  font-size: clamp(27px, 3.6vw, 44px);
  font-weight: 300;
  line-height: 1.2;
  color: var(--ink);
}

.page-about .ab-sec-head__note {
  margin: 18px 0 0;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 时间轴 ---------- */
.page-about .ab-track-sec {
  padding-top: clamp(72px, 10vw, 136px);
}

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

.page-about .ab-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 2px;
  background: var(--ab-stroke);
}

.page-about .ab-track__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding-left: 34px;
  padding-bottom: clamp(38px, 5vw, 58px);
}

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

.page-about .ab-track__dot {
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(56, 225, 208, .13), 0 0 18px rgba(56, 225, 208, .45);
}

.page-about .ab-track__era {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-about .ab-track__title {
  margin: 0;
  font-size: clamp(21px, 2.4vw, 31px);
  font-weight: 300;
  line-height: 1.32;
  color: var(--ink);
}

.page-about .ab-track__body p {
  margin: 0 0 14px;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .ab-track__num {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 18px 0 0;
  color: var(--orange);
}

.page-about .ab-track__num .ly-num {
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1;
}

.page-about .ab-track__num-cap {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--mist);
}

/* ---------- 编辑室宽幅 ---------- */
.page-about .ab-desk {
  padding-top: clamp(56px, 8vw, 104px);
}

.page-about .ab-desk__fig {
  overflow: hidden;
  clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%);
  aspect-ratio: 7 / 4;
}

.page-about .ab-desk__fig img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 内容范围 ---------- */
.page-about .ab-scope {
  padding-top: clamp(72px, 10vw, 136px);
}

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

.page-about .ab-scope__fig {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 1 / 1;
}

.page-about .ab-scope__fig img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .ab-scope__body h2 {
  margin: 14px 0 0;
  font-size: clamp(26px, 3.2vw, 40px);
  font-weight: 300;
  line-height: 1.24;
  color: var(--ink);
}

.page-about .ab-scope__body > p {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .ab-scope__list {
  list-style: none;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
}

.page-about .ab-scope__list li {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule-soft);
}

.page-about .ab-scope__list li:first-child {
  border-top: 1px solid var(--rule-soft);
}

.page-about .ab-scope__list strong {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.page-about .ab-scope__list span {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 三条编排线 ---------- */
.page-about .ab-lanes {
  padding-top: clamp(72px, 10vw, 136px);
}

.page-about .ab-lanes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-about .ab-lane {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.6vw, 32px);
  border-radius: var(--radius-lg);
}

.page-about .ab-lane__idx {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-about .ab-lane h3 {
  margin: 0;
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 300;
  line-height: 1.3;
  color: var(--ink);
}

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

.page-about .ab-lane__for {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px dashed var(--rule);
  font-size: 13px;
  color: var(--cyan);
}

/* ---------- 团队 ---------- */
.page-about .ab-team {
  padding-top: clamp(72px, 10vw, 136px);
}

.page-about .ab-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
}

.page-about .ab-team__lede h2 {
  margin: 14px 0 0;
  font-size: clamp(26px, 3.2vw, 40px);
  font-weight: 300;
  line-height: 1.24;
  color: var(--ink);
}

.page-about .ab-team__lede p {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .ab-team__nums {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 26px);
  margin: 0;
  padding: clamp(22px, 3vw, 36px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--rule-soft);
  background: linear-gradient(150deg, rgba(10, 33, 54, .94) 0%, rgba(6, 40, 61, .78) 68%, rgba(18, 112, 143, .3) 100%);
}

.page-about .ab-team__nums dt {
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-about .ab-team__nums dd {
  margin: 0;
}

/* ---------- 合作生态 ---------- */
.page-about .ab-eco {
  padding-top: clamp(72px, 10vw, 136px);
}

.page-about .ab-eco__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-about .ab-eco__col {
  padding: clamp(22px, 3vw, 34px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--rule-soft);
  background: rgba(10, 33, 54, .5);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .ab-eco__col:hover {
  background: rgba(18, 58, 87, .62);
  border-color: rgba(56, 225, 208, .42);
  transform: translateY(-4px);
}

.page-about .ab-eco__count {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-about .ab-eco__count .ly-num {
  font-size: clamp(30px, 3.6vw, 44px);
  color: var(--orange);
}

.page-about .ab-eco__col h3 {
  margin: 0 0 12px;
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 300;
  line-height: 1.32;
  color: var(--ink);
}

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

/* ---------- 下一季 ---------- */
.page-about .ab-next {
  padding-top: clamp(72px, 10vw, 136px);
}

.page-about .ab-next__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 4vw, 56px) clamp(22px, 3.4vw, 48px);
  border-radius: var(--radius-lg);
  background: var(--waterline);
}

.page-about .ab-next__panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--glow-cyan);
  opacity: .55;
  pointer-events: none;
}

.page-about .ab-next__panel > * {
  position: relative;
  z-index: 1;
}

.page-about .ab-next__panel h2 {
  margin: 14px 0 0;
  font-size: clamp(25px, 3.1vw, 38px);
  font-weight: 300;
  line-height: 1.24;
  color: var(--ink);
}

.page-about .ab-next__list {
  list-style: none;
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 2.4vw, 28px);
}

.page-about .ab-next__list li {
  padding-top: 18px;
  border-top: 1px solid rgba(231, 237, 243, .22);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.page-about .ab-next__list strong {
  display: block;
  margin-bottom: 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--cyan);
}

/* ---------- 延伸阅读 ---------- */
.page-about .ab-more {
  padding-top: clamp(72px, 10vw, 136px);
}

.page-about .ab-more__h {
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 300;
  color: var(--ink);
}

.page-about .ab-more__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .ab-more__link {
  display: grid;
  gap: 5px;
  padding: 20px 24px;
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--ink);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .ab-more__link:hover {
  border-color: rgba(56, 225, 208, .55);
  background: rgba(18, 58, 87, .55);
  transform: translateY(-3px);
}

.page-about .ab-more__link span {
  font-size: 16px;
  font-weight: 600;
}

.page-about .ab-more__link em {
  font-style: normal;
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .ab-more__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .ab-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
    column-gap: clamp(32px, 5vw, 80px);
  }

  .page-about .ab-track__item {
    grid-template-columns: 7fr 5fr;
    column-gap: clamp(32px, 5vw, 72px);
    align-items: start;
    padding-left: 72px;
  }

  .page-about .ab-track__item:nth-child(even) {
    grid-template-columns: 5fr 7fr;
  }

  .page-about .ab-track__item:nth-child(even) .ab-track__body {
    grid-column: 1;
    grid-row: 1;
  }

  .page-about .ab-track__item:nth-child(even) .ab-track__head {
    grid-column: 2;
    grid-row: 1;
  }

  .page-about .ab-scope__grid {
    grid-template-columns: 4fr 8fr;
    align-items: start;
  }

  .page-about .ab-lanes__grid {
    grid-template-columns: 5fr 4fr 3fr;
  }

  .page-about .ab-lanes__grid > *:nth-child(2) {
    margin-top: clamp(0px, 2vw, 32px);
  }

  .page-about .ab-lanes__grid > *:nth-child(3) {
    margin-top: clamp(0px, 4vw, 64px);
  }

  .page-about .ab-team__grid {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }

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