.page-about {
  --about-ink: var(--espresso-ink);
  --about-rule: rgba(36, 26, 20, 0.16);
  --about-accent: #C24A12;
  --about-soft: #4A3A2E;
  --about-card: #FBF6EC;
  background: var(--void-navy);
  color: var(--paper-cream);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumbs {
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist-gray);
}
.page-about .breadcrumbs a {
  color: var(--pulse-cyan);
  text-decoration: none;
}
.page-about .breadcrumbs span {
  margin: 0 6px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(24px, 5vw, 44px) 0 clamp(40px, 7vw, 88px);
  border-bottom: 1px solid var(--frame-glow);
  background:
    radial-gradient(110% 80% at 88% 6%, rgba(62, 224, 210, 0.16), transparent 58%),
    radial-gradient(85% 70% at 4% 100%, rgba(225, 58, 124, 0.14), transparent 62%),
    var(--void-navy);
}
.page-about .about-hero-grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
}
.page-about .hero-copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-editorial);
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.01em;
}
.page-about .hero-lede {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.85;
  color: #D8DEEA;
}
.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-about .hero-board {
  padding: clamp(18px, 4vw, 28px);
  border: 1px solid var(--frame-glow);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(15, 26, 46, 0.95), rgba(6, 11, 20, 0.9));
}
.page-about .hero-crest {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .hero-stats {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 18px;
}
.page-about .hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--frame-glow);
}
.page-about .stat-num {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--pulse-cyan);
}
.page-about .hero-stats li:nth-child(2) .stat-num {
  color: var(--volt-orange);
}
.page-about .hero-stats li:nth-child(3) .stat-num {
  color: var(--magenta-flare);
}
.page-about .hero-stats li:nth-child(4) .stat-num {
  color: var(--amber-flag);
}
.page-about .stat-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist-gray);
}

/* ---------- 快速跳转 ---------- */
.page-about .about-index {
  padding: clamp(28px, 5vw, 48px) 0 clamp(10px, 2vw, 18px);
}
.page-about .about-index .index-card {
  border-radius: var(--radius-lg);
}

/* ---------- 纸面主体 ---------- */
.page-about .about-body {
  background: var(--paper-cream);
  color: var(--about-ink);
}
.page-about .about-section {
  padding: clamp(40px, 7vw, 84px) 0;
}
.page-about .about-body .section-title {
  color: var(--about-ink);
}
.page-about .about-body .lede {
  color: var(--about-soft);
}

/* ---------- 时间线 ---------- */
.page-about .tl {
  position: relative;
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
}
.page-about .tl::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--pulse-cyan), rgba(62, 224, 210, 0.2) 55%, rgba(255, 106, 26, 0.55));
}
.page-about .tl-item {
  position: relative;
  margin-bottom: 14px;
  padding-left: 34px;
}
.page-about .tl-dot {
  position: absolute;
  left: 2px;
  top: 14px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper-cream);
  border: 3px solid var(--about-ink);
}
.page-about .tl-node {
  padding: 14px 18px;
  border: 1px solid var(--about-rule);
  border-radius: var(--radius-md);
  background: var(--about-card);
}
.page-about .tl-node summary {
  position: relative;
  display: block;
  padding-right: 30px;
  list-style: none;
  cursor: pointer;
}
.page-about .tl-node summary::-webkit-details-marker {
  display: none;
}
.page-about .tl-node summary::after {
  content: "";
  position: absolute;
  right: 4px;
  top: 10px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--about-ink);
  border-bottom: 2px solid var(--about-ink);
  transform: rotate(45deg);
  transition: transform 0.22s ease;
}
.page-about .tl-node[open] summary::after {
  transform: rotate(-135deg);
}
.page-about .tl-stage {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--about-accent);
}
.page-about .tl-head {
  display: block;
  margin-top: 6px;
  font-family: var(--font-editorial);
  font-size: clamp(19px, 3vw, 24px);
  line-height: 1.35;
  color: var(--about-ink);
}
.page-about .tl-meta {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: #6E5B4C;
}
.page-about .tl-body {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--about-rule);
  font-size: 16px;
  line-height: 1.85;
  color: #3A2C22;
}
.page-about .tl-body p {
  margin: 0;
}

/* ---------- 整幅图 ---------- */
.page-about .about-figure {
  margin: clamp(30px, 5vw, 52px) 0 0;
}
.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .about-figure figcaption {
  max-width: var(--max-w);
  margin: 14px auto 0;
  padding: 0 var(--gutter);
  font-size: 13px;
  line-height: 1.7;
  color: #6E5B4C;
}

/* ---------- 流程条带 ---------- */
.page-about .flow-strip {
  list-style: none;
  margin: 32px 0 0;
  padding: clamp(14px, 2.4vw, 22px);
  display: grid;
  gap: 12px;
  border: 1px solid var(--frame-glow);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--rail-steel), #0A1322);
}
.page-about .flow-step {
  padding: 16px 16px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: rgba(28, 46, 74, 0.35);
  transition: border-color 0.22s ease, background 0.22s ease, transform 0.22s ease;
}
.page-about .flow-step:hover,
.page-about .flow-step:focus-within {
  border-color: var(--pulse-cyan);
  background: rgba(62, 224, 210, 0.08);
  transform: translateY(-2px);
}
.page-about .flow-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--volt-orange);
}
.page-about .flow-title {
  margin: 8px 0 6px;
  font-family: var(--font-editorial);
  font-size: 20px;
  line-height: 1.35;
  color: var(--paper-cream);
}
.page-about .flow-role,
.page-about .flow-time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
}
.page-about .flow-role {
  color: var(--pulse-cyan);
}
.page-about .flow-time {
  margin-top: 4px;
  color: var(--amber-flag);
}
.page-about .flow-text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: #B9C4D6;
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}
.page-about .role-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-about .role-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 14px;
  padding: 14px 16px;
  border: 1px solid var(--about-rule);
  border-radius: var(--radius-md);
  background: var(--about-card);
}
.page-about .role-name {
  font-family: var(--font-editorial);
  font-size: 18px;
}
.page-about .role-num {
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1;
  color: var(--about-accent);
}
.page-about .role-desc {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--about-soft);
}
.page-about .team-figure {
  margin: 0;
  padding: 14px;
  border: 1px solid var(--about-rule);
  border-radius: var(--radius-lg);
  background: var(--about-card);
}
.page-about .team-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}
.page-about .team-figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: #6E5B4C;
}

/* ---------- 联赛分组 ---------- */
.page-about .league-groups {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}
.page-about .league-group {
  position: relative;
  overflow: hidden;
  padding: 24px 22px 22px;
  border: 1px solid var(--about-rule);
  border-radius: var(--radius-lg);
  background: var(--about-card);
}
.page-about .league-group::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 6px;
  background: var(--group-accent, var(--pulse-cyan));
}
.page-about .league-eu {
  --group-accent: var(--pulse-cyan);
}
.page-about .league-asia {
  --group-accent: var(--amber-flag);
}
.page-about .league-basket {
  --group-accent: var(--magenta-flare);
}
.page-about .league-group h3 {
  margin: 6px 0 8px;
  font-family: var(--font-editorial);
  font-size: 22px;
}
.page-about .league-note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--about-soft);
}
.page-about .league-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
}
.page-about .league-chip {
  padding: 6px 13px;
  border: 1px solid rgba(36, 26, 20, 0.14);
  border-radius: var(--radius-pill);
  background: #EFE6D6;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--about-ink);
}
.page-about .league-foot {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 3px solid rgba(194, 74, 18, 0.4);
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-soft);
}

/* ---------- 阅读写法 ---------- */
.page-about .standard-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}
.page-about .standard-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.page-about .standard-figure img {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .standard-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}
.page-about .standard-list li {
  padding-left: 16px;
  border-left: 3px solid rgba(194, 74, 18, 0.35);
}
.page-about .standard-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-editorial);
  font-size: 19px;
  line-height: 1.4;
}
.page-about .standard-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-soft);
}

/* ---------- 跳转区 ---------- */
.page-about .about-next {
  padding: clamp(44px, 7vw, 84px) 0;
  border-top: 1px solid var(--frame-glow);
  background: linear-gradient(180deg, #081020, var(--void-navy));
  color: var(--paper-cream);
}
.page-about .about-next .section-title {
  color: var(--paper-cream);
}
.page-about .about-next .lede {
  color: var(--mist-gray);
}
.page-about .next-grid {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}
.page-about .next-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--frame-glow);
  border-radius: var(--radius-lg);
  background: rgba(15, 26, 46, 0.6);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.22s ease, transform 0.22s ease;
}
.page-about .next-card:hover,
.page-about .next-card:focus-visible {
  border-color: var(--pulse-cyan);
  transform: translateY(-3px);
}
.page-about .next-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--volt-orange);
}
.page-about .next-card h3 {
  margin: 0;
  font-family: var(--font-editorial);
  font-size: 19px;
  line-height: 1.4;
}
.page-about .next-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-gray);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .flow-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .flow-strip {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .page-about .about-figure img {
    max-height: 520px;
    object-fit: cover;
  }
  .page-about .league-groups {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
    gap: 56px;
  }
  .page-about .team-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-about .standard-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: center;
  }
  .page-about .standard-figure {
    margin-left: calc(-1 * var(--gutter));
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
  }
  .page-about .next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .hero-stats {
    gap: 18px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition: none !important;
    animation: none !important;
  }
}