.page-about {
  --ab-bp: 64px;
  --ab-rule: rgba(16, 19, 20, .12);
  background: var(--paper);
  color: var(--seed);
  font-family: var(--font-body);
  overflow: hidden;
}

.page-about .section {
  padding: clamp(52px, 8vw, 96px) 0;
}

.page-about .section--tight {
  padding: clamp(30px, 5vw, 52px) 0;
}

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

/* ---------- 首屏 ---------- */

.page-about .ab-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(106px, 15vw, 168px) 0 clamp(44px, 6vw, 76px);
  background:
    radial-gradient(118% 100% at 88% -18%, rgba(46, 139, 87, .72), transparent 58%),
    radial-gradient(80% 80% at 2% 108%, rgba(30, 91, 79, .62), transparent 62%),
    var(--seed);
  color: var(--mist);
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(232, 245, 233, .075) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(232, 245, 233, .075) 1px, transparent 1px);
  background-size: var(--ab-bp) var(--ab-bp);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 64%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 64%, transparent 100%);
  pointer-events: none;
}

.page-about .ab-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 46px);
}

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

.page-about .ab-hero .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 clamp(18px, 3vw, 28px);
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: .02em;
  color: rgba(232, 245, 233, .6);
}

.page-about .ab-hero .breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-about .ab-hero .breadcrumbs li + li::before {
  content: "/";
  color: rgba(232, 245, 233, .3);
}

.page-about .ab-hero .breadcrumbs a {
  color: rgba(232, 245, 233, .86);
  text-decoration: none;
  border-bottom: 1px solid rgba(199, 255, 60, .4);
}

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

.page-about .ab-hero .breadcrumbs [aria-current="page"] {
  color: var(--lime);
}

.page-about .ab-hero .kicker {
  color: var(--lime);
}

.page-about .ab-hero .display {
  margin: 0 0 clamp(16px, 2.4vw, 22px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 60px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: #fff;
  text-wrap: balance;
}

.page-about .ab-hero .lede {
  max-width: 46ch;
  margin: 0 0 clamp(22px, 3vw, 32px);
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.78;
  color: rgba(232, 245, 233, .8);
}

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

/* 比分卡 */

.page-about .ab-scorecard {
  min-width: 0;
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line-dark);
  border-radius: var(--r-lg);
  background: rgba(11, 61, 46, .66);
  box-shadow: var(--shadow-2);
  backdrop-filter: blur(8px);
}

.page-about .ab-scorecard__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-dark);
}

.page-about .ab-scorecard__tag {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--lime);
}

.page-about .ab-scorecard__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-scorecard__list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-dark);
}

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

.page-about .ab-scorecard__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: rgba(232, 245, 233, .45);
}

.page-about .ab-scorecard__num {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.4vw, 28px);
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-about .ab-scorecard__foot {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(232, 245, 233, .6);
}

.page-about .ab-hero__figure {
  margin: clamp(34px, 5vw, 58px) 0 0;
}

/* ---------- 从看台到小屏 ---------- */

.page-about .ab-origin__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
}

.page-about .ab-origin__body .kicker {
  color: var(--kiwi);
}

.page-about .ab-origin__body .h2 {
  margin: 8px 0 clamp(16px, 2.4vw, 22px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.22;
  color: var(--deep);
  text-wrap: balance;
}

.page-about .ab-origin__body p {
  margin: 0 0 16px;
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.85;
  color: var(--gray);
}

.page-about .ab-origin__body .aside-note {
  margin-top: 22px;
  padding-left: 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--teal);
}

.page-about .ab-origin__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(46, 139, 87, .18);
  border-radius: var(--r-lg);
  background: rgba(46, 139, 87, .18);
}

.page-about .ab-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(16px, 2.4vw, 22px);
  background: var(--mist);
  min-width: 0;
}

.page-about .ab-stat .stat-value {
  font-family: var(--font-mono);
  font-size: clamp(23px, 3.4vw, 32px);
  font-weight: 600;
  line-height: 1.05;
  color: var(--deep);
  font-variant-numeric: tabular-nums;
}

.page-about .ab-stat .stat-label {
  font-size: 13px;
  line-height: 1.55;
  color: var(--gray);
}

/* ---------- 当季版演进 ---------- */

.page-about .ab-timeline {
  position: relative;
  background-color: var(--mist);
  background-image:
    linear-gradient(to right, rgba(46, 139, 87, .09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(46, 139, 87, .09) 1px, transparent 1px);
  background-size: 72px 72px;
}

.page-about .ab-timeline__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
  margin-bottom: clamp(30px, 5vw, 54px);
}

.page-about .ab-timeline__head .kicker {
  color: var(--kiwi);
}

.page-about .ab-timeline__head .h2 {
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.2;
  color: var(--deep);
  text-wrap: balance;
}

.page-about .ab-timeline__head .lede {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--gray);
}

.page-about .ab-timeline__fig {
  margin: 0;
}

.page-about .ab-track {
  position: relative;
  margin: 0;
  padding: 0 0 0 42px;
  list-style: none;
}

.page-about .ab-track::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  border-radius: var(--r-pill);
  background: linear-gradient(180deg, var(--kiwi) 0%, var(--lime) 58%, var(--orange) 100%);
  opacity: .55;
}

.page-about .ab-track__item {
  position: relative;
  padding-bottom: clamp(16px, 2.6vw, 24px);
}

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

.page-about .ab-track__marker {
  position: absolute;
  top: 28px;
  left: -37px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--lime);
  border: 3px solid var(--mist);
  box-shadow: 0 0 0 2px rgba(46, 139, 87, .5);
}

.page-about .ab-track__card {
  padding: clamp(18px, 2.6vw, 26px);
  border-radius: var(--r-lg);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}

.page-about .ab-track__card:hover,
.page-about .ab-track__card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
}

.page-about .ab-track__ver {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 12px;
  border: 1px solid rgba(46, 139, 87, .26);
  border-radius: var(--r-pill);
  background: var(--lime-soft);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--teal);
}

.page-about .ab-track__card .h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.3vw, 24px);
  line-height: 1.3;
  color: var(--deep);
}

.page-about .ab-track__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--gray);
}

/* ---------- 内容团队与评测方法 ---------- */

.page-about .ab-editorial__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.page-about .ab-editorial__fig {
  margin: 0;
}

.page-about .ab-editorial__body .kicker {
  color: var(--kiwi);
}

.page-about .ab-editorial__body .h2 {
  margin: 8px 0 clamp(16px, 2.4vw, 22px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.22;
  color: var(--deep);
  text-wrap: balance;
}

.page-about .ab-editorial__body p {
  margin: 0 0 16px;
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.85;
  color: var(--gray);
}

.page-about .ab-editorial__points {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--ab-rule);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ab-rule);
}

.page-about .ab-editorial__points li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 18px;
  background: #fff;
}

.page-about .ab-editorial__num {
  flex: 0 0 auto;
  min-width: 62px;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 600;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-about .ab-editorial__text {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 回访的理由 ---------- */

.page-about .ab-return {
  background: linear-gradient(180deg, var(--paper) 0%, var(--lime-soft) 42%, var(--paper) 100%);
}

.page-about .ab-return__intro {
  max-width: 60ch;
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-about .ab-return__intro .kicker {
  color: var(--kiwi);
}

.page-about .ab-return__intro .h2 {
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.22;
  color: var(--deep);
}

.page-about .ab-return__intro .lede {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--gray);
}

.page-about .ab-return__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-return__card {
  padding: clamp(20px, 2.6vw, 28px);
  border-radius: var(--r-lg);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}

.page-about .ab-return__card:hover,
.page-about .ab-return__card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
}

.page-about .ab-return__num {
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--kiwi);
}

.page-about .ab-return__card .h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.1vw, 22px);
  line-height: 1.35;
  color: var(--deep);
}

.page-about .ab-return__card p {
  margin: 0;
  font-size: 14.8px;
  line-height: 1.8;
  color: var(--gray);
}

.page-about .ab-return__more {
  margin: clamp(24px, 3.4vw, 36px) 0 0;
}

/* ---------- 合作与开放 ---------- */

.page-about .ab-coop {
  background: var(--paper);
}

.page-about .ab-coop__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
}

.page-about .ab-coop__body .kicker {
  color: var(--kiwi);
}

.page-about .ab-coop__body .h2 {
  margin: 8px 0 clamp(16px, 2.4vw, 22px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.22;
  color: var(--deep);
  text-wrap: balance;
}

.page-about .ab-coop__body p {
  margin: 0 0 20px;
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.85;
  color: var(--gray);
}

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

.page-about .ab-coop__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .ab-coop__item {
  display: flex;
  gap: 16px;
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--ab-rule);
  border-radius: var(--r-lg);
  background: #fff;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}

.page-about .ab-coop__item:hover,
.page-about .ab-coop__item:focus-within {
  transform: translateY(-3px);
  border-color: var(--kiwi);
}

.page-about .ab-coop__idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: .06em;
}

.page-about .ab-coop__item .h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.35;
  color: var(--deep);
}

.page-about .ab-coop__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--gray);
}

/* ---------- 继续看 ---------- */

.page-about .ab-quick {
  background: var(--seed);
  color: var(--mist);
}

.page-about .ab-quick .kicker {
  display: block;
  margin-bottom: 18px;
  color: var(--lime);
}

.page-about .ab-quick__links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .ab-quick__link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--line-dark);
  border-radius: var(--r-md);
  background: rgba(232, 245, 233, .05);
  text-decoration: none;
  color: inherit;
  transition: transform .3s var(--ease), border-color .3s var(--ease), background-color .3s var(--ease);
}

.page-about .ab-quick__link:hover {
  transform: translateY(-3px);
  border-color: var(--lime);
  background: rgba(199, 255, 60, .08);
}

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

.page-about .ab-quick__label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  color: #fff;
}

.page-about .ab-quick__desc {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(232, 245, 233, .68);
}

/* ---------- 焦点反馈 ---------- */

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

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-about .ab-editorial__points {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .ab-return__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .ab-coop__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .ab-quick__links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: start;
    gap: clamp(34px, 4vw, 60px);
  }

  .page-about .ab-origin__grid {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, .78fr);
    align-items: start;
  }

  .page-about .ab-timeline__head {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
    align-items: center;
  }

  .page-about .ab-editorial__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: center;
  }

  .page-about .ab-coop__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-about .ab-track {
    padding-left: 52px;
  }

  .page-about .ab-track::before {
    left: 15px;
  }

  .page-about .ab-track__marker {
    left: -45px;
    width: 16px;
    height: 16px;
  }

  .page-about .ab-track__card {
    display: grid;
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
    gap: 6px 28px;
    align-items: start;
  }

  .page-about .ab-track__card .ab-track__ver {
    grid-column: 1;
    margin-bottom: 0;
    align-self: start;
  }

  .page-about .ab-track__card .h3 {
    grid-column: 2;
    margin-top: 0;
  }

  .page-about .ab-track__card p {
    grid-column: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-track__card,
  .page-about .ab-return__card,
  .page-about .ab-coop__item,
  .page-about .ab-quick__link {
    transition: none;
  }

  .page-about .ab-track__card:hover,
  .page-about .ab-return__card:hover,
  .page-about .ab-coop__item:hover,
  .page-about .ab-quick__link:hover {
    transform: none;
  }
}