.page-about {
  --about-line: rgba(154, 164, 192, .22);
  --about-line-soft: rgba(154, 164, 192, .12);
  background: var(--hh-ink);
  color: var(--hh-frost);
}

.page-about .hh-btn {
  text-decoration: none;
}

/* ===== 首屏 ===== */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(22px, 4vw, 40px) clamp(48px, 7vw, 88px);
  background:
    radial-gradient(115% 88% at 84% 6%, rgba(255, 107, 26, .16), transparent 58%),
    linear-gradient(168deg, var(--hh-ink) 0%, var(--hh-slate) 68%, var(--hh-ink) 100%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, rgba(22, 208, 127, .07) 0 1px, transparent 1px 7px);
}

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

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  margin-top: clamp(22px, 3.5vw, 40px);
}

.page-about .about-hero__title {
  margin: 14px 0 18px;
  font-family: var(--hh-font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 66px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--hh-frost);
}

.page-about .about-hero .hh-lead {
  max-width: 34em;
  color: var(--hh-frost);
  opacity: .86;
  line-height: 1.78;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-about .about-hero__rail {
  border: 1px solid var(--about-line);
  border-radius: var(--hh-radius);
  background: rgba(11, 18, 48, .58);
  padding: 20px;
}

.page-about .about-hero__railtitle {
  display: block;
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--hh-green);
  margin-bottom: 16px;
}

.page-about .about-numgrid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-numgrid .hh-numgrid__cell {
  display: grid;
  place-items: center;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--about-line);
  border-radius: var(--hh-radius);
  background: var(--hh-slate);
  color: var(--hh-frost);
  font-family: var(--hh-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 19px;
  cursor: default;
  transition: background 160ms var(--hh-ease), color 160ms var(--hh-ease), transform 160ms var(--hh-ease);
}

.page-about .about-numgrid .hh-numgrid__cell:hover {
  background: var(--hh-green);
  border-color: var(--hh-yellow);
  color: var(--hh-ink);
  transform: translateY(-2px);
}

.page-about .about-hero__railnote {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--hh-mist);
}

/* ===== 通用小节头 ===== */
.page-about .about-sechead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 28px;
  padding-bottom: clamp(18px, 2.5vw, 26px);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-sechead .hh-title {
  margin: 0;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.2;
}

/* ===== 时间轴 ===== */
.page-about .about-timeline {
  padding-block: clamp(44px, 7vw, 92px);
  background: var(--hh-ink);
}

.page-about .about-axis {
  position: relative;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-axis::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--hh-green), var(--hh-orange));
  opacity: .5;
}

.page-about .about-axis__item {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 18px;
  padding-bottom: clamp(26px, 3.6vw, 42px);
  transition: opacity 200ms var(--hh-ease);
}

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

.page-about .about-axis__item::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--hh-ink);
  border: 3px solid var(--hh-green);
  z-index: 1;
}

.page-about .about-axis__item.is-current::before {
  border-color: var(--hh-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 26, .18);
}

.page-about .about-axis__item.is-muted {
  opacity: .55;
}

.page-about .about-axis__year {
  writing-mode: vertical-rl;
  justify-self: center;
  padding-top: 4px;
  font-family: var(--hh-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  letter-spacing: .2em;
  color: var(--hh-green);
}

.page-about .about-axis__item.is-current .about-axis__year {
  color: var(--hh-orange);
}

.page-about .about-axis__body h3 {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.35;
  color: var(--hh-frost);
}

.page-about .about-axis__body p {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--hh-mist);
}

/* ===== 联赛与梯队分组（浅色区） ===== */
.page-about .about-map {
  color: var(--hh-black);
}

.page-about .about-map .about-sechead {
  border-bottom-color: var(--hh-line-light);
}

.page-about .about-map .hh-title {
  color: var(--hh-black);
}

.page-about .about-map__grid {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .about-map__sub {
  margin: 0 0 18px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--hh-black);
}

.page-about .about-leagues {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hh-line-light);
}

.page-about .about-leagues__item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--hh-line-light);
  transition: transform 160ms var(--hh-ease);
}

.page-about .about-leagues__item:hover {
  transform: translateX(4px);
}

.page-about .about-leagues__no {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--hh-orange);
  padding-top: 3px;
}

.page-about .about-leagues__item h4 {
  margin: 0 0 6px;
  font-size: 17px;
  color: var(--hh-black);
}

.page-about .about-leagues__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--hh-steel);
}

.page-about .about-map__foot {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--hh-steel);
}

.page-about .about-ages {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-ages__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 12px 14px;
  border: 1px solid var(--hh-line-light);
  border-radius: var(--hh-radius);
  background: rgba(255, 255, 255, .5);
  transition: background 160ms var(--hh-ease), border-color 160ms var(--hh-ease);
}

.page-about .about-ages__item:hover {
  background: rgba(22, 208, 127, .14);
  border-color: var(--hh-green);
}

.page-about .about-ages__item span {
  font-size: 17px;
  font-variant-numeric: tabular-nums;
  color: var(--hh-black);
}

.page-about .about-ages__item em {
  font-style: normal;
  font-size: 12px;
  color: var(--hh-steel);
}

.page-about .about-map__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--hh-line-light);
}

.page-about .about-map__stats .hh-stat__value {
  display: block;
  font-family: var(--hh-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3.4vw, 34px);
  color: var(--hh-ink);
}

.page-about .about-map__stats .hh-stat__label {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--hh-steel);
}

/* ===== 号码对位 ===== */
.page-about .about-numbers {
  padding-block: clamp(44px, 7vw, 92px);
  background: var(--hh-ink);
}

.page-about .about-numbers__lead {
  max-width: 52ch;
  margin: clamp(20px, 3vw, 30px) 0 0;
  color: var(--hh-frost);
  opacity: .86;
  line-height: 1.78;
}

.page-about .about-numbers__media {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
}

.page-about .hh-media {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--hh-radius);
  background: var(--hh-slate);
}

.page-about .hh-media--16x9 {
  aspect-ratio: 16 / 9;
}

.page-about .hh-media--4x3 {
  aspect-ratio: 4 / 3;
}

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

.page-about .about-table-wrap {
  margin-top: clamp(22px, 3vw, 32px);
  overflow-x: auto;
  border: 1px solid var(--about-line);
  border-radius: var(--hh-radius);
  background: rgba(22, 32, 74, .38);
}

.page-about .about-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
}

.page-about .about-table thead th {
  padding: 12px 16px;
  text-align: left;
  font-family: var(--hh-font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--hh-mist);
  border-bottom: 1px solid var(--about-line);
  background: rgba(11, 18, 48, .5);
}

.page-about .about-table tbody th,
.page-about .about-table tbody td {
  padding: 13px 16px;
  text-align: left;
  font-size: 15px;
  color: var(--hh-frost);
  border-bottom: 1px solid var(--about-line-soft);
}

.page-about .about-table tbody th {
  font-weight: 500;
  color: var(--hh-orange);
  font-variant-numeric: tabular-nums;
}

.page-about .about-table tbody tr:nth-child(even) {
  background: rgba(22, 32, 74, .42);
}

.page-about .about-table tbody tr {
  transition: background 160ms var(--hh-ease);
}

.page-about .about-table tbody tr:hover {
  background: rgba(22, 208, 127, .14);
}

.page-about .about-table tbody tr:last-child th,
.page-about .about-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-about .about-table:focus-within {
  outline: 2px solid var(--hh-yellow);
  outline-offset: 2px;
}

.page-about .about-paths {
  margin-top: clamp(28px, 4vw, 44px);
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--hh-orange);
  border-radius: var(--hh-radius);
  background: var(--hh-slate);
}

.page-about .about-paths__title {
  margin: 0 0 16px;
  font-size: 18px;
  color: var(--hh-frost);
}

.page-about .about-paths__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .about-paths__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.75;
  color: var(--hh-mist);
}

.page-about .about-paths__list span {
  flex: none;
  padding: 3px 10px;
  border-radius: var(--hh-radius);
  background: rgba(22, 208, 127, .16);
  color: var(--hh-green);
  font-size: 12.5px;
  letter-spacing: .06em;
}

/* ===== 团队 ===== */
.page-about .about-team {
  padding-block: clamp(44px, 7vw, 92px);
  background: linear-gradient(140deg, var(--hh-turf) 0%, #08281F 60%, var(--hh-ink) 100%);
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .about-team__intro {
  margin: 0 0 24px;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--hh-frost);
  opacity: .88;
}

.page-about .about-roles {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-about .about-roles__item {
  padding: 18px 20px;
  border: 1px solid var(--about-line);
  border-radius: var(--hh-radius);
  background: rgba(11, 18, 48, .5);
  transition: border-color 160ms var(--hh-ease), background 160ms var(--hh-ease);
}

.page-about .about-roles__item:hover {
  border-color: var(--hh-green);
  background: rgba(11, 18, 48, .72);
}

.page-about .about-roles__item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--hh-green);
}

.page-about .about-roles__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--hh-mist);
}

/* ===== 合作 ===== */
.page-about .about-partners {
  color: var(--hh-black);
}

.page-about .about-partners .about-sechead {
  border-bottom-color: var(--hh-line-light);
}

.page-about .about-partners .hh-title {
  color: var(--hh-black);
}

.page-about .about-partners__list {
  display: grid;
  gap: 22px;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-partners__item {
  padding: 22px 22px 24px;
  border-radius: 36px 6px 36px 6px;
  background: rgba(11, 18, 48, .06);
  border: 1px solid var(--hh-line-light);
}

.page-about .about-partners__num {
  display: block;
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--hh-orange);
}

.page-about .about-partners__item h3 {
  margin: 12px 0 8px;
  font-size: 17px;
  color: var(--hh-black);
}

.page-about .about-partners__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--hh-steel);
}

.page-about .about-honor {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 28px;
  margin-top: clamp(26px, 4vw, 44px);
  padding-top: 22px;
  border-top: 1px solid var(--hh-line-light);
}

.page-about .about-honor__text {
  margin: 0;
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--hh-black);
}

.page-about .about-honor__link {
  color: var(--hh-black);
  font-size: 15px;
  text-decoration: none;
  border-bottom: 2px solid var(--hh-orange);
  padding-bottom: 3px;
  transition: color 160ms var(--hh-ease), border-color 160ms var(--hh-ease);
}

.page-about .about-honor__link:hover {
  color: var(--hh-orange);
  border-color: var(--hh-green);
}

/* ===== 收尾指引 ===== */
.page-about .about-next {
  padding-block: clamp(44px, 7vw, 88px);
  background: var(--hh-ink);
}

.page-about .about-next__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-about .about-next .hh-title {
  margin: 0 0 18px;
  font-size: clamp(24px, 3.6vw, 38px);
}

.page-about .about-next__text {
  margin: 0 0 22px;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--hh-frost);
  opacity: .86;
}

.page-about .about-next__contact {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 0 0 10px;
  font-size: 15px;
  color: var(--hh-green);
  font-variant-numeric: tabular-nums;
}

.page-about .about-next__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--hh-mist);
}

.page-about .about-next__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-line);
}

.page-about .about-next__list li {
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-next__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 2px;
  color: var(--hh-frost);
  font-size: 15.5px;
  text-decoration: none;
  transition: color 160ms var(--hh-ease), padding-left 160ms var(--hh-ease);
}

.page-about .about-next__link span {
  color: var(--hh-orange);
  font-family: var(--hh-font-mono);
}

.page-about .about-next__link:hover {
  color: var(--hh-green);
  padding-left: 8px;
}

.page-about .about-next__link:focus-visible,
.page-about .about-honor__link:focus-visible {
  outline: 2px solid var(--hh-yellow);
  outline-offset: 3px;
}

/* ===== 响应式 ===== */
@media (min-width: 760px) {
  .page-about .about-map__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

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

  .page-about .about-next__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }
}

@media (min-width: 1000px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr);
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-about .about-ages {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .page-about .about-hero__title {
    font-size: clamp(28px, 9vw, 40px);
  }

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

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

  .page-about .about-axis__item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 14px;
  }

  .page-about .about-axis::before {
    left: 16px;
  }

  .page-about .about-axis__item::before {
    left: 10px;
    width: 12px;
    height: 12px;
  }

  .page-about .about-sechead .hh-note {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-leagues__item,
  .page-about .about-numgrid .hh-numgrid__cell,
  .page-about .about-next__link,
  .page-about .about-axis__item {
    transition: none;
    transform: none;
  }
}