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

.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 var(--sp-2);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--orange-ink);
}
.page-about .about-kicker::before {
  content: "";
  width: 22px;
  height: 3px;
  border-radius: 2px;
  background: var(--orange);
}
.page-about .about-kicker--lime { color: var(--lime); }
.page-about .about-kicker--lime::before { background: var(--lime); }

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--cream-45);
}
.page-about .breadcrumb a {
  color: rgba(243, 239, 228, .78);
  text-decoration: none;
}
.page-about .breadcrumb a:hover { color: var(--lime); }
.page-about .breadcrumb li + li::before {
  content: "/";
  margin-right: 4px;
  color: rgba(243, 239, 228, .32);
}
.page-about .breadcrumb [aria-current="page"] { color: var(--lime); }

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 82% -10%, #174034 0%, var(--pitch) 58%);
  color: var(--cream);
  padding-top: calc(var(--header-h) + var(--sp-4));
  padding-bottom: clamp(48px, 8vw, 96px);
}
.page-about .about-hero__wash {
  position: absolute;
  z-index: 0;
  top: -24%;
  right: -26%;
  width: 64%;
  height: 148%;
  transform: rotate(-9deg);
  background: linear-gradient(160deg, rgba(198, 255, 74, .16), rgba(198, 255, 74, 0) 62%);
  border-left: 1px solid var(--line-pitch);
  pointer-events: none;
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: radial-gradient(rgba(198, 255, 74, .18) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: .45;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 72%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 72%);
  pointer-events: none;
}
.page-about .about-hero__inner { position: relative; z-index: 1; }

.page-about .about-hero__grid {
  display: grid;
  gap: var(--sp-4);
  margin-top: var(--sp-4);
}
.page-about .about-hero__tagline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 var(--sp-3);
  font-size: 13px;
  color: var(--cream-70);
  letter-spacing: .02em;
}
.page-about .about-hero h1 {
  margin: 0 0 var(--sp-3);
  line-height: 1.08;
  letter-spacing: -.02em;
  max-width: 18em;
}
.page-about .about-hero .lede {
  margin: 0;
  max-width: 34em;
  color: var(--cream-70);
}
.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--sp-4);
}

.page-about .about-hero__board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.page-about .board-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  padding: var(--sp-3);
  border: 1px solid var(--line-pitch);
  border-radius: var(--radius);
  background: rgba(18, 48, 42, .82);
  transition: border-color .25s var(--ease), background .25s var(--ease);
}
.page-about .board-card:hover {
  border-color: rgba(198, 255, 74, .55);
  background: rgba(18, 48, 42, .95);
}
.page-about .board-card--wide { grid-column: span 2; }
.page-about .board-card__num {
  font-family: var(--font-mono);
  font-size: clamp(38px, 9vw, 62px);
  font-weight: 800;
  line-height: .92;
  letter-spacing: -.03em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}
.page-about .board-card--wide .board-card__num { font-size: clamp(56px, 14vw, 96px); }
.page-about .board-card__label {
  font-size: 13px;
  line-height: 1.5;
  color: rgba(243, 239, 228, .72);
}

/* ---------- 起点与现状 ---------- */
.page-about .about-origin {
  padding: clamp(56px, 9vw, 96px) 0 clamp(40px, 6vw, 64px);
}
.page-about .about-origin__grid {
  display: grid;
  gap: var(--sp-3);
}
.page-about .about-origin__head h2 { margin: 0; }
.page-about .about-origin__body p {
  margin: 0 0 var(--sp-3);
  font-size: 16px;
  line-height: 1.78;
  max-width: 36em;
}
.page-about .origin-facts {
  list-style: none;
  margin: var(--sp-4) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.page-about .origin-facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  border-radius: 10px;
}
.page-about .origin-facts .num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 5vw, 30px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--mid);
  font-variant-numeric: tabular-nums;
}
.page-about .origin-facts span:last-child {
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  position: relative;
  overflow: hidden;
  padding: clamp(56px, 9vw, 96px) 0;
  background: linear-gradient(180deg, var(--pitch) 0%, var(--stand) 100%);
  color: var(--cream);
}
.page-about .about-team__head { max-width: 60ch; }
.page-about .about-team h2 {
  margin: 0 0 var(--sp-2);
  color: var(--cream);
}
.page-about .about-team .lede {
  margin: 0 0 var(--sp-4);
  color: var(--cream-70);
}
.page-about .about-team__media {
  margin: 0 0 var(--sp-4);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-pitch);
  background: var(--stand);
}
.page-about .about-team__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-about .about-team__media figcaption {
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(243, 239, 228, .64);
  background: rgba(11, 31, 23, .68);
}

.page-about .team-band {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.page-about .team-mod {
  min-width: 0;
  padding: var(--sp-3);
  border: 1px solid var(--line-pitch);
  border-radius: var(--radius);
  background: rgba(243, 239, 228, .05);
  transition: transform .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
}
.page-about .team-mod:hover,
.page-about .team-mod:focus-within {
  transform: translateY(-3px);
  background: rgba(198, 255, 74, .09);
  border-color: rgba(198, 255, 74, .5);
}
.page-about .team-mod__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.page-about .team-mod__head h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.4;
  color: var(--cream);
}
.page-about .team-mod__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}
.page-about .team-mod--ops .team-mod__num { color: var(--orange); }
.page-about .team-mod p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--cream-70);
}
.page-about .team-mod__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.page-about .team-mod__list li {
  position: relative;
  padding-left: 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(243, 239, 228, .58);
}
.page-about .team-mod__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
  opacity: .8;
}
.page-about .team-mod--ops .team-mod__list li::before { background: var(--orange); }

/* ---------- 一场比赛的记录过程 ---------- */
.page-about .about-flow {
  padding: clamp(56px, 9vw, 96px) 0;
  background: var(--cream);
}
.page-about .about-flow__head {
  max-width: 58ch;
  margin-bottom: var(--sp-4);
}
.page-about .about-flow__head h2 { margin: 0 0 var(--sp-2); }
.page-about .about-flow__note {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
}
.page-about .flow-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-about .flow-step {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--sp-3);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}
.page-about .flow-step:hover {
  transform: translateY(-3px);
  border-color: var(--mid);
}
.page-about .flow-step__time {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: clamp(28px, 7vw, 38px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--orange-ink);
  font-variant-numeric: tabular-nums;
}
.page-about .flow-step__time small {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--muted);
}
.page-about .flow-step h3 {
  margin: 0;
  font-size: 17px;
  color: var(--ink);
}
.page-about .flow-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  padding: clamp(56px, 9vw, 104px) 0;
  background:
    linear-gradient(200deg, #16392F 0%, var(--pitch) 46%, #0A1A13 100%);
  color: var(--cream);
}
.page-about .about-timeline__grid {
  display: grid;
  gap: var(--sp-4);
}
.page-about .about-timeline h2 {
  margin: 0 0 var(--sp-2);
  color: var(--cream);
}
.page-about .rail-note {
  margin: 0 0 var(--sp-3);
  font-size: 14px;
  color: var(--cream-45);
}
.page-about .rail-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.page-about .rail-nav a {
  position: relative;
  display: block;
  padding: 10px 12px 10px 26px;
  font-size: 14px;
  line-height: 1.4;
  color: rgba(243, 239, 228, .78);
  text-decoration: none;
  border-radius: 8px;
  border-left: 2px solid rgba(198, 255, 74, .22);
  transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}
.page-about .rail-nav a::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 50%;
  width: 10px;
  height: 10px;
  margin-top: -5px;
  border-radius: 50%;
  background: var(--stand);
  border: 2px solid rgba(198, 255, 74, .55);
  transition: background .2s var(--ease), border-color .2s var(--ease);
}
.page-about .rail-nav a:hover,
.page-about .rail-nav a:focus-visible {
  color: var(--cream);
  background: rgba(198, 255, 74, .1);
  border-left-color: var(--lime);
  outline: none;
}
.page-about .rail-nav a:hover::before,
.page-about .rail-nav a:focus-visible::before {
  background: var(--lime);
  border-color: var(--lime);
}

.page-about .about-timeline__cards {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-left: 28px;
}
.page-about .about-timeline__cards::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: linear-gradient(to bottom, var(--orange) 0%, var(--lime) 42%, rgba(198, 255, 74, .12) 100%);
}
.page-about .tl-card {
  position: relative;
  scroll-margin-top: calc(var(--header-h) + 24px);
  padding: var(--sp-3);
  background: var(--stand);
  border: 1px solid var(--line-pitch);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .25s var(--ease), background .25s var(--ease), transform .25s var(--ease);
}
.page-about .tl-card::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 26px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 44, .18);
  transition: background .25s var(--ease), box-shadow .25s var(--ease);
}
.page-about .tl-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 26px;
  height: 26px;
  background: var(--pitch);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  pointer-events: none;
}
.page-about .tl-card:hover {
  transform: translateY(-2px);
  border-color: rgba(198, 255, 74, .45);
}
.page-about .tl-card:target {
  border-color: var(--lime);
  background: rgba(198, 255, 74, .1);
}
.page-about .tl-card:target::before {
  background: var(--lime);
  box-shadow: 0 0 0 6px rgba(198, 255, 74, .2);
}
.page-about .tl-card__season {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--lime);
}
.page-about .tl-card h3 {
  margin: 0 0 8px;
  font-size: 19px;
  line-height: 1.4;
  color: var(--cream);
}
.page-about .tl-card p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--cream-70);
}
.page-about .tl-figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-pitch);
  background: var(--stand);
}
.page-about .tl-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}
.page-about .tl-figure figcaption {
  padding: 10px 14px;
  font-size: 12.5px;
  line-height: 1.55;
  color: rgba(243, 239, 228, .6);
}

/* ---------- 分类与档案夹 ---------- */
.page-about .about-archive {
  padding: clamp(56px, 9vw, 96px) 0;
  background: var(--cream);
}
.page-about .about-archive__head { margin-bottom: var(--sp-4); max-width: 56ch; }
.page-about .about-archive__head h2 { margin: 0; }

.page-about .archive-grid {
  display: grid;
  gap: 16px;
}
.page-about .archive-layers,
.page-about .archive-tags {
  padding: var(--sp-3);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--card);
}
.page-about .archive-layers h3,
.page-about .archive-tags h3 {
  margin: 0 0 var(--sp-3);
  font-size: 18px;
  color: var(--ink);
}
.page-about .layer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.page-about .layer-list li {
  display: grid;
  grid-template-columns: auto 4.6em minmax(0, 1fr);
  align-items: baseline;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(42, 38, 34, .16);
}
.page-about .layer-list li:last-child { border-bottom: 0; }
.page-about .layer-list__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--orange-ink);
}
.page-about .layer-list__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}
.page-about .layer-list__desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .tag-cloud {
  list-style: none;
  margin: 0 0 var(--sp-3);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-about .tag-cloud .tag {
  font-size: 13px;
  padding: 6px 12px;
}
.page-about .archive-tags p {
  margin: 0 0 var(--sp-3);
  font-size: 14px;
  line-height: 1.74;
  color: var(--ink);
}
.page-about .archive-tags__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  font-size: 15px;
  font-weight: 700;
  color: var(--orange-ink);
  text-decoration: none;
  border-bottom: 2px solid var(--lime);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-about .archive-tags__link::after { content: "→"; }
.page-about .archive-tags__link:hover {
  color: var(--ink);
  border-color: var(--orange);
}

/* ---------- 收尾 ---------- */
.page-about .about-join {
  padding: clamp(56px, 9vw, 96px) 0;
  background:
    linear-gradient(140deg, #14372C 0%, var(--pitch) 62%);
  color: var(--cream);
}
.page-about .about-join__grid {
  display: grid;
  gap: var(--sp-4);
}
.page-about .about-join h2 {
  margin: 0 0 var(--sp-2);
  color: var(--cream);
}
.page-about .about-join__copy > p {
  margin: 0 0 var(--sp-3);
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--cream-70);
}
.page-about .join-list {
  list-style: none;
  margin: 0 0 var(--sp-4);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.page-about .join-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(243, 239, 228, .8);
}
.page-about .join-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: 10px;
  height: 2px;
  background: var(--lime);
}
.page-about .about-join__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-join .btn--ghost {
  color: var(--cream);
  border-color: rgba(243, 239, 228, .42);
}
.page-about .about-join .btn--ghost:hover {
  color: var(--pitch);
  background: var(--lime);
  border-color: var(--lime);
}
.page-about .about-join__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-pitch);
}
.page-about .about-join__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .about-hero__board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .board-card--wide { grid-column: span 3; }
  .page-about .flow-track { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-about .archive-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: var(--sp-5);
    align-items: end;
  }
  .page-about .about-hero__board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .board-card--wide { grid-column: span 2; }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: var(--sp-5);
    align-items: start;
  }
  .page-about .origin-facts { margin-top: var(--sp-4); }

  .page-about .about-team__head { max-width: 64ch; }
  .page-about .about-team__media img { aspect-ratio: 2 / 1; }
  .page-about .team-band { flex-direction: row; align-items: stretch; }
  .page-about .team-mod--edit { flex: 1.7 1 0; }
  .page-about .team-mod--tech { flex: 1.1 1 0; }
  .page-about .team-mod--ops { flex: .8 1 0; }

  .page-about .flow-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }
  .page-about .flow-track { position: relative; }
  .page-about .flow-track::before {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    top: 34px;
    height: 2px;
    background: linear-gradient(90deg, var(--orange), var(--lime) 55%, rgba(30, 95, 75, .35));
    opacity: .5;
    z-index: 0;
  }

  .page-about .about-timeline__grid {
    grid-template-columns: minmax(0, .74fr) minmax(0, 1.26fr);
    gap: var(--sp-5);
    align-items: start;
  }
  .page-about .about-timeline__rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-about .archive-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 20px;
  }

  .page-about .about-join__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: var(--sp-5);
    align-items: center;
  }
}

@media (min-width: 1120px) {
  .page-about .about-timeline__cards { padding-left: 34px; }
  .page-about .tl-card::before { left: -34px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .board-card,
  .page-about .team-mod,
  .page-about .flow-step,
  .page-about .tl-card,
  .page-about .rail-nav a {
    transition: none;
  }
  .page-about .team-mod:hover,
  .page-about .flow-step:hover,
  .page-about .tl-card:hover {
    transform: none;
  }
}