.page-about {
  --ab-card: #FFFFFF;
  --ab-hair: rgba(16, 22, 20, .12);
  --ab-hair-dark: rgba(245, 247, 244, .16);
  --ab-soft: rgba(23, 96, 76, .06);
  --ab-sec-gap: 60px;
  background: var(--lk-white);
  color: var(--lk-ink);
}

.page-about section {
  scroll-margin-top: 84px;
}

.page-about .ab-hero {
  padding-block: 24px 4px;
}

.page-about .ab-hero__grid {
  display: grid;
  gap: 16px;
}

.page-about .ab-hero__main {
  padding: 32px 22px 38px;
  border-radius: 2px;
}

.page-about .ab-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .ab-hero__side {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.page-about .ab-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  background: var(--ab-soft);
  border: 1px solid rgba(23, 96, 76, .12);
  border-left: 3px solid var(--lk-red);
  border-radius: 0 10px 10px 0;
}

.page-about .ab-stat--gold {
  border-left-color: var(--lk-gold);
}

.page-about .ab-stat .lk-num {
  color: var(--lk-red);
  font-weight: 700;
  line-height: 1;
}

.page-about .ab-stat--gold .lk-num {
  color: #8A5F0D;
}

.page-about .ab-stat .lk-label {
  font-size: 12px;
  line-height: 1.5;
}

.page-about .ab-sec {
  padding-block: var(--ab-sec-gap);
}

.page-about .ab-sec--dark {
  background: var(--lk-green-deep);
  padding-block: 52px;
}

.page-about .ab-sec--tint {
  background: linear-gradient(180deg, rgba(23, 96, 76, .07), rgba(23, 96, 76, 0));
  padding-block: var(--ab-sec-gap);
}

.page-about .ab-sec--scale {
  background: var(--lk-night);
  color: var(--lk-white);
  padding-block: 56px;
}

.page-about .ab-sec__head {
  max-width: 720px;
}

.page-about .ab-sec__lede {
  margin-top: 14px;
}

.page-about .ab-sec--dark .lk-h2,
.page-about .ab-sec--dark .lk-h3,
.page-about .ab-sec--scale .lk-h2 {
  color: var(--lk-white);
}

.page-about .ab-sec--dark .lk-p,
.page-about .ab-sec--scale .lk-p {
  color: rgba(245, 247, 244, .82);
}

.page-about .ab-sec--dark .lk-kicker,
.page-about .ab-sec--scale .lk-kicker {
  color: var(--lk-gold);
}

.page-about .ab-sec--dark .lk-label,
.page-about .ab-sec--scale .lk-label {
  color: rgba(245, 247, 244, .62);
}

/* 时间线 */
.page-about .ab-timeline {
  list-style: none;
  margin: 38px 0 0;
  padding: 0 0 0 30px;
  position: relative;
}

.page-about .ab-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--lk-red) 0%, var(--lk-red) 42%, var(--lk-gold) 82%, rgba(243, 179, 61, 0) 100%);
}

.page-about .ab-node {
  position: relative;
  margin-bottom: 14px;
}

.page-about .ab-node::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 24px;
  width: 13px;
  height: 13px;
  background: var(--lk-gold);
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
  transition: transform .24s var(--lk-ease);
}

.page-about .ab-node:hover::before {
  transform: translateY(-3px) scale(1.12);
}

.page-about .ab-node__box {
  background: var(--ab-card);
  border: 1px solid var(--ab-hair);
  border-left: 3px solid rgba(13, 59, 47, .16);
  border-radius: 0 12px 12px 0;
  transition: border-color .24s var(--lk-ease), transform .24s var(--lk-ease), box-shadow .24s var(--lk-ease);
}

.page-about .ab-node__box:hover {
  border-left-color: var(--lk-red);
  transform: translateX(5px);
  box-shadow: 0 10px 26px rgba(6, 18, 14, .07);
}

.page-about .ab-node__box[open] {
  border-left-color: var(--lk-red);
}

.page-about .ab-node__sum {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 18px;
  cursor: pointer;
  list-style: none;
}

.page-about .ab-node__sum::-webkit-details-marker {
  display: none;
}

.page-about .ab-node__idx {
  font-family: var(--lk-font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--lk-red);
}

.page-about .ab-node__title {
  font-family: var(--lk-font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.01em;
  flex: 1 1 auto;
}

.page-about .ab-node__hint {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  align-self: center;
  border-right: 2px solid var(--lk-mist);
  border-bottom: 2px solid var(--lk-mist);
  transform: rotate(45deg);
  transition: transform .24s var(--lk-ease), border-color .24s var(--lk-ease);
}

.page-about .ab-node__box[open] .ab-node__hint {
  transform: rotate(-135deg);
  border-color: var(--lk-red);
}

.page-about .ab-node__body {
  padding: 0 18px 20px 48px;
}

.page-about .ab-node__body .lk-p {
  margin: 0;
}

/* 团队三列 */
.page-about .ab-team {
  display: grid;
  gap: 14px;
  margin-top: 32px;
}

.page-about .ab-role {
  position: relative;
  padding: 24px 20px 26px;
  background: rgba(245, 247, 244, .07);
  border-top: 4px solid var(--lk-red);
  border-radius: 0 0 12px 12px;
  transition: transform .24s var(--lk-ease), background-color .24s var(--lk-ease);
}

.page-about .ab-role:hover {
  transform: translateY(-6px);
  background: rgba(245, 247, 244, .13);
}

.page-about .ab-role--green {
  border-top-color: var(--lk-cyan);
}

.page-about .ab-role--gold {
  border-top-color: var(--lk-gold);
}

.page-about .ab-role__idx {
  display: inline-block;
  font-family: var(--lk-font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--lk-gold);
  margin-bottom: 10px;
}

.page-about .ab-role .lk-h3 {
  margin: 0 0 12px;
  font-size: 21px;
}

.page-about .ab-role .lk-p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
}

.page-about .ab-role__fit {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--ab-hair-dark);
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(243, 179, 61, .92);
}

/* 图片 */
.page-about .ab-fig {
  margin: 34px 0 0;
}

.page-about .ab-fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 2px;
}

.page-about .ab-fig .lk-media__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--lk-mist);
}

.page-about .ab-sec--dark .lk-media__cap,
.page-about .ab-sec--scale .lk-media__cap {
  color: rgba(245, 247, 244, .6);
}

/* 当季栏目 */
.page-about .ab-season__grid {
  display: grid;
  gap: 26px;
  margin-top: 34px;
}

.page-about .ab-season__list {
  display: grid;
  gap: 18px;
}

.page-about .ab-season__list li {
  display: grid;
  gap: 6px;
}

.page-about .ab-season__list strong {
  font-family: var(--lk-font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--lk-green-deep);
}

.page-about .ab-season__list span {
  font-size: 15px;
  line-height: 1.75;
  color: var(--lk-mist);
}

.page-about .ab-season__note {
  margin-top: 24px;
}

.page-about .ab-season__grid .lk-btn {
  margin-top: 22px;
}

/* 版本 */
.page-about .ab-versions {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
}

.page-about .ab-ver {
  display: grid;
  gap: 10px;
  padding: 26px 0;
  border-top: 1px solid var(--ab-hair);
}

.page-about .ab-ver:last-child {
  border-bottom: 1px solid var(--ab-hair);
}

.page-about .ab-ver__tag {
  font-family: var(--lk-font-mono);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--lk-red);
  line-height: 1;
}

.page-about .ab-ver__body .lk-h3 {
  margin: 0 0 10px;
}

.page-about .ab-ver__body .lk-p {
  margin: 0;
}

/* 合作与荣誉 */
.page-about .ab-honors {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 0;
  padding: 0;
}

.page-about .ab-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px 11px 12px;
  background: rgba(243, 179, 61, .1);
  border: 1px solid rgba(243, 179, 61, .5);
  border-radius: 999px;
  font-size: 13.5px;
  line-height: 1.4;
  transition: background-color .24s var(--lk-ease), border-color .24s var(--lk-ease), transform .24s var(--lk-ease);
}

.page-about .ab-badge:hover {
  background: rgba(243, 179, 61, .22);
  border-color: var(--lk-gold);
  transform: translateY(-2px);
}

.page-about .ab-badge__num {
  flex: 0 0 auto;
  font-family: var(--lk-font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--lk-green-deep);
  background: var(--lk-gold);
  padding: 2px 9px;
  border-radius: 999px;
}

.page-about .ab-badge__txt {
  color: var(--lk-ink);
}

.page-about .ab-badge--wide {
  border-radius: 14px;
}

.page-about .ab-partners__foot {
  margin-top: 22px;
  max-width: 760px;
  font-size: 14.5px;
  color: var(--lk-mist);
}

.page-about .ab-partners__foot a {
  color: var(--lk-red);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 规模 */
.page-about .ab-scale {
  display: grid;
  gap: 30px;
}

.page-about .ab-scale__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 16px;
  margin-top: 30px;
}

.page-about .ab-scale__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 6px;
  padding-top: 14px;
  border-top: 2px solid var(--lk-red);
}

.page-about .ab-scale__item .lk-num {
  color: var(--lk-white);
  font-weight: 700;
  line-height: 1;
}

.page-about .ab-scale__unit {
  font-family: var(--lk-font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--lk-gold);
}

.page-about .ab-scale__item .lk-label {
  flex: 1 0 100%;
  font-size: 12.5px;
}

/* 结尾 CTA */
.page-about .ab-cta {
  padding-block: 52px 64px;
}

.page-about .ab-cta__inner {
  display: grid;
  gap: 26px;
}

.page-about .ab-cta__text .lk-p {
  margin-top: 14px;
  color: rgba(245, 247, 244, .82);
}

.page-about .ab-cta__text .lk-h2 {
  color: var(--lk-white);
}

.page-about .ab-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

.page-about .ab-cta .lk-btn--ghost {
  color: var(--lk-white);
  border-color: rgba(245, 247, 244, .42);
}

.page-about .ab-cta .lk-btn--ghost:hover {
  border-color: var(--lk-gold);
  color: var(--lk-gold);
}

/* 断点 */
@media (min-width: 640px) {
  .page-about .ab-hero__main {
    padding: 40px 32px 46px;
  }
  .page-about .ab-node__sum {
    padding: 20px 24px;
  }
  .page-about .ab-node__body {
    padding: 0 24px 22px 58px;
  }
  .page-about .ab-hero__side {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about {
    --ab-sec-gap: 92px;
  }
  .page-about .ab-team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
  .page-about .ab-ver {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }
  .page-about .ab-ver__tag {
    font-size: 38px;
  }
  .page-about .ab-scale__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
    gap: 18px;
  }
  .page-about .ab-hero__main {
    padding: 54px 46px 60px;
  }
  .page-about .ab-hero__side {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }
  .page-about .ab-season__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 44px;
  }
  .page-about .ab-scale {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
    gap: 48px;
  }
  .page-about .ab-cta__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: 40px;
  }
  .page-about .ab-cta__links {
    flex-direction: column;
    align-items: stretch;
  }
  .page-about .ab-sec--dark {
    padding-block: 96px;
  }
  .page-about .ab-sec--scale {
    padding-block: 88px;
  }
  .page-about .ab-cta {
    padding-block: 76px 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-node::before,
  .page-about .ab-node__box,
  .page-about .ab-node__hint,
  .page-about .ab-role,
  .page-about .ab-badge {
    transition: none;
  }
}