.page-about {
  --about-line: 2px solid var(--soot);
  --about-pad: clamp(1.25rem, 4vw, 2.5rem);
  --about-gap: clamp(1.25rem, 3vw, 2.25rem);
  --about-min: 0;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.75;
  overflow-x: clip;
}

.page-about .about-shell {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 1.75rem) clamp(1rem, 3.5vw, 2.5rem) clamp(3rem, 7vw, 5rem);
}

/* ---------- 面包屑 ---------- */
.page-about .yx-breadcrumb {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.page-about .yx-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0 0 clamp(1.25rem, 4vw, 2rem);
  padding: 0;
  list-style: none;
  color: var(--ivory);
}
.page-about .yx-breadcrumb li + li::before {
  content: "/";
  margin-right: 0.35rem;
  color: var(--coral-deep);
}
.page-about .yx-breadcrumb a {
  color: var(--coral);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-about .yx-breadcrumb a:hover,
.page-about .yx-breadcrumb a:focus-visible {
  border-bottom-color: var(--coral);
}
.page-about .yx-breadcrumb [aria-current="page"] {
  color: var(--yellow);
}

/* ---------- 首屏 ---------- */
.page-about .about-intro {
  position: relative;
  padding-bottom: clamp(1.5rem, 4vw, 2.5rem);
  border-bottom: 2px solid var(--coral-deep);
}
.page-about .about-intro::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -2px;
  width: clamp(64px, 18vw, 180px);
  height: 8px;
  background: var(--yellow);
  clip-path: polygon(12% 0, 100% 0, 88% 100%, 0 100%);
}
.page-about .about-eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--coral);
  margin: 0 0 0.6rem;
}
.page-about .about-title {
  margin: 0 0 1rem;
  font-size: clamp(1.9rem, 7.2vw, 3.9rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 22ch;
}
.page-about .about-lede {
  margin: 0 0 clamp(1.5rem, 4vw, 2.25rem);
  max-width: 60ch;
  font-size: clamp(1rem, 2.2vw, 1.12rem);
  color: var(--ivory);
}
.page-about .about-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--coral-deep);
  border: 2px solid var(--coral-deep);
}
.page-about .about-figure {
  background: var(--ink);
  padding: 0.9rem 1rem 1rem;
}
.page-about .about-figure__label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
}
.page-about .about-figure__num {
  margin: 0.2rem 0 0;
  font-family: var(--mono);
  font-size: clamp(1.6rem, 6vw, 2.4rem);
  font-weight: 800;
  line-height: 1;
  color: var(--yellow);
}
.page-about .about-figure__unit {
  font-size: 0.85rem;
  margin-left: 0.15rem;
  color: var(--ivory);
  font-weight: 500;
}

/* ---------- 区块通用 ---------- */
.page-about .about-band {
  position: relative;
  margin-top: clamp(2.25rem, 6vw, 4rem);
  padding: var(--about-pad);
}
.page-about .about-band--dark {
  background: linear-gradient(150deg, var(--ink-2) 0%, var(--ink) 78%);
  border-left: 5px solid var(--coral);
}
.page-about .about-band--paper {
  background: var(--paper);
  color: var(--soot);
  border: var(--about-line);
  box-shadow: var(--hard);
}
.page-about .about-band__head {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}
.page-about .about-index {
  display: block;
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--yellow);
}
.page-about .about-band--paper .about-index {
  color: var(--coral-deep);
}
.page-about .about-band--paper .about-eyebrow {
  color: var(--coral-deep);
}
.page-about .about-band h2 {
  margin: 0.15rem 0 0;
  font-size: clamp(1.55rem, 5vw, 2.5rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.01em;
  max-width: 26ch;
}
.page-about .about-lead-in,
.page-about .about-tail {
  margin: 0 0 1.15rem;
  max-width: 66ch;
  font-size: 1rem;
}
.page-about .about-tail {
  margin-top: 1.25rem;
  margin-bottom: 0;
}
.page-about .about-band--paper .about-lead-in,
.page-about .about-band--paper .about-tail {
  color: var(--soot);
}
.page-about .about-inline-link {
  color: var(--coral-deep);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--coral-deep);
  padding-bottom: 1px;
}
.page-about .about-band--dark .about-inline-link {
  color: var(--coral);
  border-bottom-color: var(--coral);
}
.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  background: var(--coral);
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* ---------- 图文分栏 ---------- */
.page-about .about-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
  align-items: start;
}
.page-about .about-split__text p {
  margin: 0 0 0.9rem;
  font-size: 1rem;
}
.page-about .about-split__text p:last-child {
  margin-bottom: 0;
}
.page-about .about-media {
  margin: 0;
  border: var(--about-line);
  box-shadow: var(--hard);
  background: var(--paper-2);
}
.page-about .about-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}
.page-about .about-media .yx-note {
  display: block;
  padding: 0.55rem 0.7rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.5;
  color: var(--soot);
  background: var(--paper);
  border-top: var(--about-line);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  position: relative;
  margin: clamp(1.75rem, 5vw, 2.5rem) 0 0;
  padding: 0 0 0 2.35rem;
  list-style: none;
}
.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 0.5rem;
  bottom: 1.4rem;
  width: 2px;
  background: linear-gradient(180deg, var(--coral), var(--coral-deep));
}
.page-about .about-year {
  position: relative;
  padding: 0 0 1.5rem;
  outline: none;
}
.page-about .about-year:last-child {
  padding-bottom: 0;
}
.page-about .about-year::before {
  content: "";
  position: absolute;
  left: -2.35rem;
  top: 0.4rem;
  width: 18px;
  height: 18px;
  background: var(--ink);
  border: 2px solid var(--coral);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}
.page-about .about-year:hover::before,
.page-about .about-year:focus-visible::before {
  background: var(--yellow);
  transform: scale(1.25);
}
.page-about .about-year:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 4px;
}
.page-about .about-year__num {
  display: block;
  font-family: var(--mono);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--yellow);
  transition: color 0.2s var(--ease);
}
.page-about .about-year:hover .about-year__num,
.page-about .about-year:focus-visible .about-year__num {
  color: var(--coral);
}
.page-about .about-year__title {
  margin: 0.15rem 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.35;
}
.page-about .about-year__note {
  margin: 0;
  max-width: 62ch;
  font-size: 0.94rem;
  color: var(--ivory);
}

/* ---------- 点阵地图 ---------- */
.page-about .about-map {
  margin: 0 0 clamp(1.5rem, 4vw, 2.25rem);
  border: var(--about-line);
  background: var(--paper-2);
  box-shadow: 5px 5px 0 var(--soot);
}
.page-about .about-map__svg {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}
.page-about .about-map__link {
  fill: none;
  stroke: var(--slate);
  stroke-width: 1.5;
  stroke-dasharray: 7 7;
  opacity: 0.75;
}
.page-about .about-dot {
  stroke: var(--soot);
  stroke-width: 2;
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 0.18s var(--ease), fill 0.18s var(--ease);
}
.page-about .about-dot--venue {
  fill: var(--coral-deep);
}
.page-about .about-dot--league {
  fill: var(--soot);
}
.page-about .about-dot--fan {
  fill: var(--yellow);
}
.page-about .about-dot:hover {
  fill: var(--coral);
  transform: scale(1.5);
}
.page-about .about-map__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  padding: 0.6rem 0.75rem;
  border-top: var(--about-line);
  background: var(--paper);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--soot);
}
.page-about .about-legend {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.page-about .about-legend__dot {
  width: 12px;
  height: 12px;
  border: 1px solid var(--soot);
  display: inline-block;
}
.page-about .about-legend__dot--venue {
  background: var(--coral-deep);
}
.page-about .about-legend__dot--league {
  background: var(--soot);
}
.page-about .about-legend__dot--fan {
  background: var(--yellow);
}

/* ---------- 协作方数据 ---------- */
.page-about .about-partners {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--soot);
  border: var(--about-line);
}
.page-about .about-partner {
  background: var(--paper);
  padding: 1rem 1.1rem 1.15rem;
  transition: background 0.2s var(--ease);
}
.page-about .about-partner:hover {
  background: var(--paper-2);
}
.page-about .about-partner__num {
  font-family: var(--mono);
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1;
  color: var(--coral-deep);
}
.page-about .about-partner__unit {
  font-family: var(--mono);
  font-size: 0.8rem;
  margin-left: 0.25rem;
  color: var(--slate);
}
.page-about .about-partner__title {
  margin: 0.4rem 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--soot);
}
.page-about .about-partner p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--slate);
}

/* ---------- 团队分工数据卡 ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: 0;
  list-style: none;
}
.page-about .about-member {
  padding: 0.9rem 1rem 1.05rem;
  background: rgba(40, 224, 176, 0.07);
  border: 2px solid var(--coral-deep);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease);
  outline: none;
}
.page-about .about-member:hover {
  transform: translate(-3px, -3px);
  box-shadow: 5px 5px 0 var(--soot);
  border-color: var(--coral);
}
.page-about .about-member:focus-visible {
  border-color: var(--coral);
  box-shadow: 0 0 0 3px var(--coral);
}
.page-about .about-member__num {
  display: block;
  font-family: var(--mono);
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1;
  color: var(--yellow);
}
.page-about .about-member__title {
  margin: 0.35rem 0 0.35rem;
  font-size: 1rem;
  font-weight: 800;
  color: var(--paper);
}
.page-about .about-member p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--ivory);
}

/* ---------- 赛季表 ---------- */
.page-about .about-table-wrap {
  max-width: 100%;
  overflow-x: auto;
  border: var(--about-line);
  background: var(--paper-2);
}
.page-about .about-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.page-about .about-table caption {
  padding: 0.6rem 0.75rem;
  text-align: left;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--slate);
  border-bottom: 1px solid var(--slate);
}
.page-about .about-table thead th {
  padding: 0.7rem 0.75rem;
  text-align: left;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--soot);
  background: var(--paper);
  border-bottom: 2px solid var(--soot);
}
.page-about .about-table tbody th {
  padding: 0.8rem 0.75rem;
  text-align: left;
  font-weight: 800;
  color: var(--soot);
  white-space: nowrap;
  border-bottom: 1px solid var(--slate);
}
.page-about .about-table tbody td {
  padding: 0.8rem 0.75rem;
  color: var(--soot);
  border-bottom: 1px solid var(--slate);
}
.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 tbody tr {
  transition: background 0.18s var(--ease);
}
.page-about .about-table tbody tr:hover {
  background: rgba(40, 224, 176, 0.16);
}

/* ---------- 城市心跳流程 ---------- */
.page-about .about-heartbeat {
  background: linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
  border-left-color: var(--yellow);
}
.page-about .about-flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: clamp(1.25rem, 3.5vw, 2rem) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: flow;
}
.page-about .about-flow__step {
  position: relative;
  padding: 1rem 1.1rem 1.15rem;
  border: 2px solid var(--coral);
  background: rgba(11, 20, 36, 0.72);
}
.page-about .about-flow__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--coral), var(--yellow));
}
.page-about .about-flow__tag {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--yellow);
}
.page-about .about-flow__title {
  margin: 0.55rem 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--paper);
}
.page-about .about-flow__step p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ivory);
}

/* ---------- 尾段入口 ---------- */
.page-about .about-next {
  margin-top: clamp(2.5rem, 7vw, 4.5rem);
}
.page-about .about-next__title {
  margin: 0 0 1rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ivory);
}
.page-about .about-next__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-slice {
  display: block;
  padding: 0.85rem 1.1rem;
  font-weight: 800;
  font-size: 1rem;
  color: var(--ink);
  background: var(--coral);
  border: 2px solid var(--soot);
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 96% 100%, 0 100%);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease), color 0.2s var(--ease);
}
.page-about .about-slice:hover,
.page-about .about-slice:focus-visible {
  background: var(--yellow);
  color: var(--soot);
  transform: translateX(4px);
}
.page-about .about-slice:focus-visible {
  outline: 3px solid var(--paper);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-partners {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-team {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.85rem;
  }
  .page-about .about-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(1.5rem, 3vw, 2.75rem);
  }
  .page-about .about-split--reverse {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }
  .page-about .about-split--reverse .about-media {
    order: 0;
  }
  .page-about .about-split--reverse .about-split__text {
    order: 1;
  }
  .page-about .about-band {
    padding: clamp(2rem, 4vw, 3rem);
  }
  .page-about .about-band--dark {
    padding-left: clamp(1.75rem, 3.5vw, 2.75rem);
  }
  .page-about .about-team {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-next__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-title {
    max-width: 24ch;
  }
}

@media (min-width: 1180px) {
  .page-about .about-shell {
    padding-left: clamp(2rem, 5vw, 4rem);
    padding-right: clamp(2rem, 5vw, 4rem);
  }
  .page-about .about-intro {
    padding-top: clamp(1rem, 2vw, 1.75rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-dot,
  .page-about .about-member,
  .page-about .about-slice,
  .page-about .about-year::before,
  .page-about .about-year__num {
    transition: none !important;
  }
  .page-about .about-dot:hover,
  .page-about .about-member:hover,
  .page-about .about-slice:hover {
    transform: none;
  }
}