/* ================= 品牌总览 /overview/ ================= */

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

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 44px) 0 clamp(52px, 8vw, 104px);
  background:
    radial-gradient(110% 70% at 6% 0%, rgba(79, 163, 209, .22), transparent 58%),
    radial-gradient(85% 65% at 100% 10%, rgba(47, 107, 79, .22), transparent 62%),
    var(--ab-night);
  color: var(--ab-ice);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(201, 216, 228, .07) 0 1px, transparent 1px 52px),
    repeating-linear-gradient(90deg, rgba(201, 216, 228, .07) 0 1px, transparent 1px 52px);
  pointer-events: none;
}

.page-about .about-hero .ab-container {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .ab-crumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(26px, 5vw, 54px);
  padding: 0;
}

.page-about .about-hero .ab-crumb__item {
  font-family: var(--ab-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--ab-on-night);
}

.page-about .about-hero .ab-crumb__item a {
  color: var(--ab-ice);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

.page-about .about-hero .ab-crumb__item + .ab-crumb__item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(201, 216, 228, .4);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
  align-items: center;
}

.page-about .about-hero__text .ab-kicker {
  color: var(--ab-amber);
}

.page-about .about-hero__text .ab-h1 {
  color: #fff;
  margin: 14px 0 0;
}

.page-about .about-hero__text .ab-lede {
  color: var(--ab-on-night);
  margin: 20px 0 0;
}

.page-about .about-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  list-style: none;
  margin: 30px 0 0;
  padding: 22px 0 0;
  border-top: 2px solid rgba(201, 216, 228, .24);
}

.page-about .about-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 88px;
}

.page-about .about-hero__num {
  font-family: var(--ab-mono);
  font-size: clamp(21px, 3vw, 30px);
  font-weight: 800;
  line-height: 1;
  color: var(--ab-amber);
  letter-spacing: .01em;
}

.page-about .about-hero__cap {
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ab-on-night);
}

.page-about .about-hero__figure {
  border: 3px solid var(--ab-ice);
  box-shadow: 10px 10px 0 rgba(242, 179, 61, .35);
  background: var(--ab-night);
}

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

.page-about .about-hero__figure .ab-figure__cap {
  color: var(--ab-on-night);
}

/* ---------- 通用章节 ---------- */

.page-about .about-chapter .ab-section__head .ab-lede {
  max-width: 62ch;
}

/* ---------- 01 时间线 ---------- */

.page-about .about-tl {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
  border-top: 3px solid var(--ab-night);
}

.page-about .about-tl__item {
  display: grid;
  gap: 14px;
  padding: 26px 0;
  border-bottom: 2px solid var(--ab-line);
  transition: background .2s ease;
}

.page-about .about-tl__item:hover,
.page-about .about-tl__item:focus-within {
  background: rgba(79, 163, 209, .07);
}

.page-about .about-tl__item:focus-visible {
  outline: 3px solid var(--ab-amber);
  outline-offset: 4px;
}

.page-about .about-tl__marker {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-about .about-tl__num {
  font-family: var(--ab-mono);
  font-size: clamp(28px, 4.4vw, 42px);
  font-weight: 800;
  line-height: 1;
  color: var(--ab-blue);
  transition: color .2s ease;
}

.page-about .about-tl__item:hover .about-tl__num,
.page-about .about-tl__item:focus-within .about-tl__num {
  color: var(--ab-amber);
}

.page-about .about-tl__season {
  font-family: var(--ab-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ab-note);
}

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

.page-about .about-tl__content p {
  margin: 0 0 10px;
  font-size: 16.5px;
  line-height: 1.75;
}

.page-about .about-tl__more {
  font-size: 15px !important;
  color: var(--ab-note);
  padding-left: 14px;
  border-left: 3px solid var(--ab-ice);
  transition: border-color .2s ease, color .2s ease;
}

.page-about .about-tl__item:hover .about-tl__more,
.page-about .about-tl__item:focus-within .about-tl__more {
  border-left-color: var(--ab-locust);
  color: var(--ab-ink);
}

/* ---------- 02 团队 ---------- */

.page-about .about-team {
  background: linear-gradient(180deg, rgba(201, 216, 228, .55), rgba(201, 216, 228, .26));
  border-top: 3px solid var(--ab-night);
  border-bottom: 3px solid var(--ab-night);
}

.page-about .about-roster {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .about-roster__row {
  border: 3px solid var(--ab-night);
  background: #fff;
  padding: 20px 20px 22px;
  box-shadow: 6px 6px 0 rgba(11, 27, 51, .12);
  transition: box-shadow .18s ease, transform .18s ease;
}

.page-about .about-roster__row:hover,
.page-about .about-roster__row:focus-within {
  box-shadow: 9px 9px 0 rgba(11, 27, 51, .2), inset 0 0 0 1px var(--ab-night);
  transform: translate(-2px, -2px);
}

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

.page-about .about-roster__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-about .about-roster__name {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: .01em;
}

.page-about .about-roster__count {
  font-family: var(--ab-mono);
  font-size: 17px;
  font-weight: 800;
  color: var(--ab-night);
}

.page-about .about-roster__scale {
  position: relative;
  display: block;
  height: 16px;
  margin: 14px 0 12px;
  background: var(--ab-ice);
  border: 2px solid var(--ab-night);
}

.page-about .about-roster__fill {
  display: block;
  height: 100%;
  transition: filter .18s ease;
}

.page-about .about-roster__fill--a {
  width: 61.1%;
  background: var(--ab-locust);
}

.page-about .about-roster__fill--b {
  width: 27.8%;
  background: var(--ab-blue);
}

.page-about .about-roster__fill--c {
  width: 11.1%;
  background: var(--ab-amber);
}

.page-about .about-roster__row:hover .about-roster__fill,
.page-about .about-roster__row:focus-within .about-roster__fill {
  filter: saturate(1.35);
}

.page-about .about-roster__duty {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ab-note);
  transition: color .18s ease;
}

.page-about .about-roster__row:hover .about-roster__duty,
.page-about .about-roster__row:focus-within .about-roster__duty {
  color: var(--ab-ink);
}

.page-about .about-team__note {
  margin: 26px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--ab-locust);
}

/* ---------- 03 流程 ---------- */

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

.page-about .about-flow__step {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 22px 26px;
  background: #fff;
  border: 3px solid var(--ab-night);
  box-shadow: var(--ab-shadow);
  transition: box-shadow .18s ease, transform .18s ease;
}

.page-about .about-flow__step:hover {
  box-shadow: var(--ab-shadow-hover);
  transform: translate(-2px, -2px);
}

.page-about .about-flow__time {
  align-self: flex-start;
  padding: 5px 11px;
  font-family: var(--ab-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: #fff;
  background: var(--ab-night);
}

.page-about .about-flow__step:nth-child(2) .about-flow__time {
  background: var(--ab-blue);
}

.page-about .about-flow__step:nth-child(3) .about-flow__time {
  background: var(--ab-locust);
}

.page-about .about-flow__step .ab-h3 {
  margin: 0;
}

.page-about .about-flow__step p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ab-note);
}

.page-about .about-flow__figure {
  margin-top: clamp(30px, 5vw, 54px);
}

.page-about .about-flow__figure .ab-figure {
  border: 3px solid var(--ab-night);
  background: var(--ab-mist);
  box-shadow: var(--ab-shadow);
}

.page-about .about-flow__figure .ab-figure__cap {
  padding: 12px 16px;
}

/* ---------- 04 覆盖面 ---------- */

.page-about .about-scope {
  background: var(--ab-night);
  color: var(--ab-ice);
}

.page-about .about-scope .ab-kicker {
  color: var(--ab-amber);
}

.page-about .about-scope .ab-h2,
.page-about .about-scope .ab-h3 {
  color: #fff;
}

.page-about .about-scope .ab-lede {
  color: var(--ab-on-night);
}

.page-about .about-scope__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
}

.page-about .about-leagues {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 3px solid rgba(201, 216, 228, .45);
}

.page-about .about-leagues__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  padding: 15px 0;
  border-bottom: 2px solid rgba(201, 216, 228, .16);
}

.page-about .about-leagues__idx {
  font-family: var(--ab-mono);
  font-size: 13px;
  color: var(--ab-amber);
  min-width: 30px;
}

.page-about .about-leagues__name {
  font-size: 17px;
  font-weight: 800;
  color: #fff;
}

.page-about .about-leagues__note {
  margin-left: auto;
  font-family: var(--ab-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ab-on-night);
}

.page-about .about-figures {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-about .about-figures__item {
  padding-left: 16px;
  border-left: 3px solid var(--ab-amber);
}

.page-about .about-figures__value {
  font-family: var(--ab-mono);
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 800;
  line-height: 1;
  color: var(--ab-amber);
  letter-spacing: -.01em;
}

.page-about .about-figures__unit {
  margin-left: 8px;
  font-family: var(--ab-mono);
  font-size: 14px;
  color: var(--ab-ice);
}

.page-about .about-figures__label {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ab-on-night);
}

/* ---------- 05 本地共建 ---------- */

.page-about .about-map {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.page-about .about-map__city {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 12px 12px;
  font-size: 14.5px;
  font-weight: 700;
  background: #fff;
  border: 2px solid var(--ab-night);
  transition: background .16s ease, color .16s ease, box-shadow .16s ease, transform .16s ease;
}

.page-about .about-map__dot {
  width: 9px;
  height: 9px;
  flex: none;
  background: var(--ab-locust);
  transition: background .16s ease;
}

.page-about .about-map__city:hover,
.page-about .about-map__city:focus-visible {
  background: var(--ab-night);
  color: #fff;
  box-shadow: 4px 4px 0 var(--ab-amber);
  transform: translate(-2px, -2px);
  outline: none;
}

.page-about .about-map__city:hover .about-map__dot,
.page-about .about-map__city:focus-visible .about-map__dot {
  background: var(--ab-amber);
}

.page-about .about-local__body {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  margin-top: clamp(30px, 5vw, 52px);
  align-items: center;
}

.page-about .about-local__text p {
  margin: 0 0 16px;
  font-size: 16.5px;
  line-height: 1.78;
}

.page-about .about-local__figure {
  border: 3px solid var(--ab-night);
  background: var(--ab-mist);
  box-shadow: var(--ab-shadow);
}

.page-about .about-local__figure .ab-figure__cap {
  padding: 12px 16px;
}

/* ---------- 06 合作 ---------- */

.page-about .about-join-section {
  background: linear-gradient(180deg, rgba(201, 216, 228, .4), rgba(244, 248, 251, 0));
  border-top: 3px solid var(--ab-night);
}

.page-about .about-join {
  display: grid;
  gap: 20px;
}

.page-about .about-join__card {
  display: flex;
  flex-direction: column;
}

.page-about .about-join__card .ab-card__foot {
  margin-top: auto;
}

.page-about .about-join__link {
  display: inline-block;
  text-decoration: none;
}

.page-about .about-closing {
  margin-top: clamp(34px, 5vw, 56px);
  padding: clamp(22px, 3.5vw, 34px);
  background: var(--ab-night);
  color: var(--ab-ice);
  border: 3px solid var(--ab-night);
  box-shadow: 10px 10px 0 rgba(242, 179, 61, .4);
}

.page-about .about-closing__text {
  margin: 0;
  max-width: 60ch;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--ab-on-night);
}

.page-about .about-closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0 0;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-about .about-map {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-about .about-tl__item {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 32px;
    padding: 32px 0;
  }

  .page-about .about-tl__marker {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }

  .page-about .about-scope__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }

  .page-about .about-local__body {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 1080px) {
  .page-about .about-map {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .about-tl__item,
  .page-about .about-tl__num,
  .page-about .about-tl__more,
  .page-about .about-roster__row,
  .page-about .about-roster__duty,
  .page-about .about-roster__fill,
  .page-about .about-flow__step,
  .page-about .about-map__city,
  .page-about .about-map__dot {
    transition: none;
  }

  .page-about .about-roster__row:hover,
  .page-about .about-roster__row:focus-within,
  .page-about .about-flow__step:hover,
  .page-about .about-map__city:hover,
  .page-about .about-map__city:focus-visible {
    transform: none;
  }
}
<<<END>>>