.page-about {
  --about-band-w: 6px;
  --about-gap: clamp(2.25rem, 5vw, 4rem);
  --about-accent-soft: rgba(201, 133, 74, 0.14);
  display: block;
}

/* 面包屑 */
.page-about .about-crumb {
  padding-top: 1.5rem;
}

.page-about .about-crumb .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-about .about-crumb .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--rock);
}

.page-about .about-crumb .breadcrumb a {
  color: var(--copper);
  text-decoration: none;
}

.page-about .about-crumb .breadcrumb a:hover {
  text-decoration: underline;
}

/* 首屏 */
.page-about .about-hero {
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(2.5rem, 6vw, 4.5rem);
}

.page-about .about-hero-inner {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}

.page-about .about-hero-copy .kicker {
  margin: 0 0 0.85rem;
}

.page-about .about-hero-copy h1 {
  margin: 0 0 1.1rem;
  line-height: 1.18;
  font-size: clamp(2rem, 5.2vw, 3.4rem);
  color: var(--snow);
}

.page-about .about-hero-copy .lede {
  margin: 0 0 1.85rem;
  max-width: 40ch;
  color: var(--winter);
}

.page-about .about-hero-stats {
  display: grid;
  gap: 0.95rem;
  margin: 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--line);
}

.page-about .hero-stat {
  display: grid;
  gap: 0.2rem;
}

.page-about .hero-stat dt {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--copper);
}

.page-about .hero-stat dd {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--winter);
}

/* 首屏纯 CSS 球场视觉 */
.page-about .about-hero-art {
  position: relative;
  display: grid;
  gap: 1rem;
}

.page-about .pitch {
  position: relative;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  background:
    radial-gradient(circle at 50% 42%, rgba(47, 211, 200, 0.13), transparent 62%),
    linear-gradient(165deg, var(--ink-2) 0%, var(--ink-3) 78%);
  overflow: hidden;
}

.page-about .pitch-touchline {
  position: absolute;
  left: 8%;
  right: 8%;
  height: 1px;
  background: rgba(220, 227, 232, 0.22);
}

.page-about .pitch-touchline--top { top: 12%; }
.page-about .pitch-touchline--bottom { bottom: 12%; }

.page-about .pitch-half {
  position: absolute;
  top: 12%;
  bottom: 12%;
  left: 50%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(220, 227, 232, 0.26), transparent);
}

.page-about .pitch-centre {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 26%;
  aspect-ratio: 1 / 1;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(201, 133, 74, 0.4);
  border-radius: 50%;
}

.page-about .pitch-corner {
  position: absolute;
  width: 12px;
  height: 12px;
  border-top: 1px solid rgba(220, 227, 232, 0.3);
  border-left: 1px solid rgba(220, 227, 232, 0.3);
}

.page-about .pitch-corner--a { top: 8%; left: 6%; }
.page-about .pitch-corner--b { top: 8%; right: 6%; transform: rotate(90deg); }
.page-about .pitch-corner--c { bottom: 8%; right: 6%; transform: rotate(180deg); }
.page-about .pitch-corner--d { bottom: 8%; left: 6%; transform: rotate(270deg); }

.page-about .pitch-bands {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .band {
  border-radius: 3px 3px 10px 10px;
  padding: 0.75rem 0.25rem 0.6rem;
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--ink);
  font-weight: 700;
}

.page-about .band--spring { background: linear-gradient(180deg, var(--spring), rgba(95, 168, 94, 0.55)); }
.page-about .band--summer { background: linear-gradient(180deg, var(--cyan), rgba(47, 211, 200, 0.45)); }
.page-about .band--autumn { background: linear-gradient(180deg, var(--autumn), rgba(217, 119, 47, 0.5)); }
.page-about .band--winter { background: linear-gradient(180deg, var(--winter), rgba(220, 227, 232, 0.5)); }

/* 主体两栏：章节锚点 + 长卷 */
.page-about .about-body {
  display: grid;
  gap: 2rem;
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
}

.page-about .about-anchors-label {
  margin: 0 0 0.75rem;
  font-size: 0.6875rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-about .about-anchor-list {
  display: flex;
  gap: 0.45rem;
  margin: 0;
  padding: 0 0 0.5rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-anchor-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--winter);
  font-size: 0.8125rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-about .about-anchor-list a .num {
  color: var(--copper);
  font-size: 0.75rem;
}

.page-about .about-anchor-list a:hover {
  border-color: var(--line-copper);
  color: var(--copper);
  background: var(--about-accent-soft);
}

/* 章节 */
.page-about .about-flow {
  min-width: 0;
}

.page-about .about-section {
  scroll-margin-top: 4.5rem;
  padding: 0 0 var(--about-gap);
  margin: 0 0 var(--about-gap);
  border-bottom: 1px solid var(--line);
}

.page-about .about-section:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-about .about-section-num {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4.5vw, 2.6rem);
  line-height: 1;
  letter-spacing: 0.04em;
  color: rgba(201, 133, 74, 0.5);
}

.page-about .about-section-head h2 {
  margin: 0 0 0.85rem;
  line-height: 1.24;
}

.page-about .about-section-lede {
  margin: 0;
  max-width: 62ch;
  color: var(--winter);
}

/* 图片 */
.page-about .about-figure {
  margin: 1.75rem 0 0;
}

.page-about .about-figure .media-frame {
  overflow: hidden;
  border-radius: var(--radius-organic);
  border: 1px solid var(--line);
}

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

.page-about .media-caption {
  margin: 0.7rem 0 0;
  font-size: 0.8125rem;
  color: var(--muted);
}

/* 四季卡片 */
.page-about .season-grid {
  display: grid;
  gap: 0.9rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .season-card {
  position: relative;
  min-width: 0;
  padding: 1.3rem 1.2rem 1.35rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--season-color, var(--copper));
  border-radius: var(--radius-organic);
}

.page-about .season-card--spring { --season-color: var(--spring); }
.page-about .season-card--summer { --season-color: var(--cyan); }
.page-about .season-card--autumn { --season-color: var(--autumn); }
.page-about .season-card--winter { --season-color: var(--winter); }

.page-about .season-card-idx {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--season-color, var(--copper));
}

.page-about .season-card h3 {
  margin: 0 0 0.55rem;
  color: var(--snow);
}

.page-about .season-card p:last-child {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--winter);
}

/* 引言 */
.page-about .about-quote {
  position: relative;
  margin: 2rem 0 0;
  padding: 1.6rem 1.5rem 1.6rem 2.1rem;
  background: var(--bone);
  border-radius: 4px 26px 4px 26px;
  border-left: var(--about-band-w) solid var(--copper);
}

.page-about .about-quote p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.0625rem, 2.6vw, 1.375rem);
  line-height: 1.7;
  color: var(--ink);
}

/* 赛事线 */
.page-about .track-list {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.page-about .track {
  min-width: 0;
  padding: 1.35rem 1.25rem 1.4rem;
  background: linear-gradient(180deg, rgba(18, 59, 47, 0.9), rgba(11, 46, 36, 0.9));
  border: 1px solid var(--line);
  border-left: 3px solid var(--track-color, var(--copper));
  border-radius: 4px 20px 4px 20px;
}

.page-about .track--spring { --track-color: var(--spring); }
.page-about .track--summer { --track-color: var(--cyan); }
.page-about .track--autumn { --track-color: var(--autumn); }
.page-about .track--winter { --track-color: var(--winter); }

.page-about .track-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.page-about .track-head h3 {
  margin: 0;
  color: var(--snow);
}

.page-about .track-meta {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--track-color, var(--copper));
}

.page-about .track p {
  margin: 0 0 0.9rem;
  font-size: 0.9375rem;
  color: var(--winter);
}

.page-about .track-link {
  display: inline-block;
  color: var(--copper);
  font-size: 0.875rem;
  text-decoration: none;
  border-bottom: 1px solid var(--line-copper);
  padding-bottom: 2px;
}

.page-about .track-link:hover {
  color: var(--clay);
}

/* 更新节奏 */
.page-about .flow-steps {
  display: grid;
  gap: 0;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: flow;
  border-top: 1px solid var(--line);
}

.page-about .flow-step {
  position: relative;
  display: grid;
  gap: 0.35rem;
  padding: 1.35rem 0 1.35rem 1.6rem;
  border-bottom: 1px solid var(--line);
}

.page-about .flow-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.75rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--copper);
}

.page-about .flow-time {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .flow-step h3 {
  margin: 0;
  color: var(--snow);
}

.page-about .flow-step p:last-child {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--winter);
}

.page-about .about-aside {
  margin-top: 2rem;
  padding: 1.4rem 1.3rem;
  background: var(--bone);
  border-radius: 22px 6px 22px 6px;
}

.page-about .about-aside h3 {
  margin: 0 0 0.6rem;
  color: var(--ink);
}

.page-about .about-aside p {
  margin: 0 0 1.1rem;
  font-size: 0.9375rem;
  color: var(--rock);
}

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

/* 团队 */
.page-about .team-grid {
  display: grid;
  gap: 0.9rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .team-cell {
  min-width: 0;
  padding: 1.2rem 1.15rem 1.25rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 6px 20px 6px 20px;
}

.page-about .team-num {
  margin: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1;
  color: var(--copper);
}

.page-about .team-cell h3 {
  margin: 0 0 0.5rem;
  color: var(--snow);
}

.page-about .team-cell p:last-child {
  margin: 0;
  font-size: 0.9rem;
  color: var(--winter);
}

.page-about .about-note {
  margin: 1.5rem 0 0;
  padding: 0 0 0 1rem;
  border-left: 2px solid var(--line-copper);
  font-size: 0.9375rem;
  color: var(--winter);
}

.page-about .about-note .num {
  color: var(--copper);
  font-weight: 700;
}

/* 发展历程折叠 */
.page-about .accordion-list {
  display: grid;
  gap: 0.6rem;
  margin-top: 1.75rem;
}

.page-about .accordion-list .accordion {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 6px 18px 6px 18px;
  padding: 0 1.15rem;
  overflow: hidden;
}

.page-about .accordion-list summary {
  cursor: pointer;
  padding: 1.05rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--snow);
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.page-about .accordion-list summary::-webkit-details-marker {
  display: none;
}

.page-about .accordion-list summary::before {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  color: var(--copper);
  font-size: 1.1rem;
  line-height: 1;
}

.page-about .accordion-list details[open] summary::before {
  content: "−";
}

.page-about .accordion-list .accordion-body {
  padding: 0 0 1.15rem 1.6rem;
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
}

.page-about .accordion-list .accordion-body p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--winter);
}

/* 合作与认可 */
.page-about .partner-grid {
  margin-top: 1.75rem;
}

.page-about .partner-card {
  min-width: 0;
}

.page-about .partner-card .partner-num {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1;
  color: var(--copper);
}

.page-about .partner-card h3 {
  margin: 0 0 0.6rem;
}

.page-about .partner-card p:last-child {
  margin: 0;
  font-size: 0.9375rem;
}

.page-about .honour-block {
  margin-top: 1.75rem;
  padding: 1.4rem 1.3rem;
  background: rgba(18, 59, 47, 0.7);
  border: 1px solid var(--line);
  border-radius: 22px 6px 22px 6px;
}

.page-about .honour-block h3 {
  margin: 0 0 1rem;
}

.page-about .honour-list {
  display: grid;
  gap: 0.7rem;
  margin: 0 0 1.1rem;
  padding: 0;
  list-style: none;
}

.page-about .honour-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  padding: 0.75rem 0.9rem;
  background: rgba(11, 46, 36, 0.65);
  border-radius: 4px 14px 4px 14px;
}

.page-about .honour-item p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--snow);
}

.page-about .honour-block > p {
  margin: 0 0 1.1rem;
  font-size: 0.9375rem;
}

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

/* 用户价值 */
.page-about .value-grid {
  margin-top: 1.75rem;
}

.page-about .value-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.35rem;
  border-radius: var(--radius-organic);
  border: 1px solid var(--line);
}

.page-about .value-card--fan {
  background: linear-gradient(160deg, rgba(95, 168, 94, 0.16), rgba(18, 59, 47, 0.95));
}

.page-about .value-card--partner {
  background: linear-gradient(160deg, rgba(201, 133, 74, 0.16), rgba(18, 59, 47, 0.95));
}

.page-about .value-card h3 {
  margin: 0 0 1rem;
  color: var(--snow);
}

.page-about .value-list {
  display: grid;
  gap: 0.7rem;
  margin: 0 0 1.4rem;
  padding: 0;
  list-style: none;
  flex: 1 1 auto;
}

.page-about .value-list li {
  font-size: 0.9375rem;
  color: var(--winter);
}

.page-about .value-list strong {
  color: var(--snow);
}

.page-about .value-card .btn {
  align-self: flex-start;
  text-decoration: none;
}

/* 收尾 */
.page-about .about-closing {
  margin-top: 2.25rem;
  padding: 1.75rem 1.5rem;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--copper);
  border-radius: 6px 26px 6px 26px;
}

.page-about .about-closing h3 {
  margin: 0 0 0.7rem;
  color: var(--snow);
}

.page-about .about-closing p {
  margin: 0 0 1.25rem;
  font-size: 0.9375rem;
  color: var(--winter);
}

.page-about .about-closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

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

/* 平板 */
@media (min-width: 640px) {
  .page-about .season-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

/* 桌面 */
@media (min-width: 1024px) {
  .page-about .about-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-about .about-body {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(2.5rem, 4vw, 4rem);
    align-items: start;
  }

  .page-about .about-anchors {
    position: sticky;
    top: 2rem;
    align-self: start;
  }

  .page-about .about-anchor-list {
    flex-direction: column;
    gap: 0.1rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-anchor-list a {
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    padding: 0.55rem 0 0.55rem 0.85rem;
    font-size: 0.875rem;
    transition: border-color 0.25s var(--ease), color 0.25s var(--ease), padding-left 0.25s var(--ease);
  }

  .page-about .about-anchor-list a:hover {
    border-left-color: var(--copper);
    background: transparent;
    padding-left: 1.1rem;
  }

  .page-about .flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 2.5rem;
  }

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

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

@media (min-width: 1280px) {
  .page-about .about-body {
    grid-template-columns: 224px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-anchor-list a,
  .page-about .track-link {
    transition: none;
  }
}
<<<END>>>