.page-about {
  --about-line: rgba(61, 245, 200, .28);
  --about-gap: clamp(20px, 3.5vw, 40px);
}

.page-about img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏框景 ---------- */
.page-about .about-hero {
  padding-top: clamp(18px, 3vw, 34px);
  padding-bottom: clamp(36px, 6vw, 68px);
}

.page-about .about-frame {
  position: relative;
  margin-top: clamp(18px, 3vw, 32px);
  padding: clamp(22px, 4vw, 52px);
  background:
    radial-gradient(110% 80% at 100% 0%, rgba(61, 245, 200, .13), transparent 62%),
    linear-gradient(155deg, var(--pitch-mid) 0%, var(--pitch-night) 72%);
  border: 2px solid var(--about-line);
  border-radius: var(--radius-soft);
  overflow: hidden;
}

.page-about .about-frame::before,
.page-about .about-frame::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 24px;
  border: 3px solid var(--point);
}

.page-about .about-frame::before {
  top: 10px;
  left: 10px;
  border-right: 0;
  border-bottom: 0;
}

.page-about .about-frame::after {
  right: 10px;
  bottom: 10px;
  border-top: 0;
  border-left: 0;
}

.page-about .about-frame-ticks {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 14px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 0 clamp(22px, 4vw, 52px);
  pointer-events: none;
}

.page-about .about-tick {
  display: block;
  width: 2px;
  height: 10px;
  background: var(--amber);
  opacity: .55;
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
}

.page-about .about-hero-lead .h1 {
  margin-top: 10px;
}

.page-about .about-hero-lead .cluster {
  margin-top: 22px;
}

.page-about .about-facts {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--about-line);
  border: 1px solid var(--about-line);
  border-radius: var(--radius-soft);
  overflow: hidden;
}

.page-about .about-fact {
  background: rgba(6, 35, 24, .78);
  padding: 14px 16px;
}

.page-about .about-fact dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--sage);
}

.page-about .about-fact dd {
  margin: 6px 0 0;
  font-size: 26px;
  font-weight: 700;
  color: var(--amber);
  line-height: 1.1;
}

/* ---------- 起点 ---------- */
.page-about .about-split {
  align-items: start;
}

.page-about .about-split-main p {
  margin-bottom: 14px;
}

.page-about .about-note {
  margin-top: 22px;
  padding: 18px 20px;
  background: linear-gradient(150deg, var(--pitch-mid), var(--pitch-night));
  border-left: 4px solid var(--point);
  border-radius: var(--radius-soft);
  color: var(--cream);
}

.page-about .about-note p {
  margin: 10px 0 0;
  color: var(--mist);
}

.page-about .about-split-side .media-frame-caption {
  margin-top: 10px;
}

/* ---------- 赛事版图 ---------- */
.page-about .about-scope-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .about-scope-item {
  padding: 20px;
  background: rgba(6, 35, 24, .55);
  border: 2px solid var(--about-line);
  border-radius: var(--radius-soft);
}

.page-about .about-scope-num {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: var(--amber);
  line-height: 1.1;
}

.page-about .about-scope-title {
  margin: 8px 0 6px;
  font-size: 18px;
  color: var(--cream);
}

.page-about .about-scope-item p {
  margin: 0;
  font-size: 15px;
  color: var(--mist);
}

.page-about .about-band-wrap {
  margin-top: clamp(28px, 5vw, 52px);
}

.page-about .about-band-label {
  margin: 0 0 14px;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-about .about-band-card {
  width: 240px;
  max-width: 78vw;
  min-height: 148px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: rgba(6, 35, 24, .7);
  border: 2px solid var(--about-line);
  border-radius: var(--radius-soft);
  transition: transform .2s ease, box-shadow .2s ease;
}

.page-about .about-band-card:hover {
  transform: translateY(-2px);
  box-shadow: 5px 5px 0 rgba(26, 17, 8, .5);
}

.page-about .about-band-title {
  margin: 0;
  font-size: 17px;
  color: var(--cream);
}

.page-about .about-band-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 团队分工 ---------- */
.page-about .about-team-tabs {
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .about-team-tabs .tabs-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-team-tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 18px 20px;
  text-align: left;
  cursor: pointer;
  background: var(--pitch-mid);
  border: 2px solid var(--about-line);
  border-radius: var(--radius-soft);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.page-about .about-team-tab:hover {
  transform: translateY(-2px);
}

.page-about .about-team-tab[aria-selected="true"] {
  border-color: var(--mint);
  background: linear-gradient(160deg, var(--pitch-turf), var(--pitch-mid));
  box-shadow: 5px 5px 0 rgba(61, 245, 200, .22);
}

.page-about .about-team-num {
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--mint);
}

.page-about .about-team-name {
  font-size: 16px;
  color: var(--cream);
}

.page-about .about-team-hint {
  font-size: 13px;
  color: var(--sage);
}

.page-about .about-team-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 20px;
  padding: 22px;
  background: rgba(10, 59, 39, .6);
  border: 2px solid var(--about-line);
  border-left: 4px solid var(--mint);
  border-radius: var(--radius-soft);
}

.page-about .about-team-panel-title {
  margin: 0 0 8px;
  font-size: 19px;
  color: var(--mint);
}

.page-about .about-team-panel p {
  margin: 0;
  color: var(--mist);
}

.page-about .about-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
  color: var(--cream);
  font-size: 15px;
  line-height: 1.7;
}

.page-about .about-list li::marker {
  color: var(--amber);
}

.page-about .about-inline-link {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-team-figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

.page-about .about-team .media-frame-caption {
  margin-top: 10px;
  color: var(--sage);
}

/* ---------- 数据流程 ---------- */
.page-about .about-flow {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-flow-step {
  position: relative;
  padding: 20px 20px 20px 22px;
  background: var(--cream);
  border: 2px solid var(--ink);
  border-radius: var(--radius-soft);
  box-shadow: 5px 5px 0 rgba(26, 17, 8, .16);
}

.page-about .about-flow-step::before {
  content: "";
  position: absolute;
  top: 20px;
  left: 0;
  width: 5px;
  height: 32px;
  background: var(--point);
}

.page-about .about-flow-num {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--point);
}

.page-about .about-flow-title {
  margin: 8px 0 6px;
  font-size: 18px;
  color: var(--ink);
}

.page-about .about-flow-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: #3a3226;
}

/* ---------- 合作伙伴 ---------- */
.page-about .about-partner-grid {
  align-items: center;
}

.page-about .about-partner-side {
  display: grid;
  gap: 12px;
}

.page-about .about-partner-stat {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(6, 35, 24, .55);
  border: 2px solid var(--about-line);
  border-radius: var(--radius-soft);
}

.page-about .about-partner-num {
  font-size: 28px;
  font-weight: 700;
  color: var(--amber);
  line-height: 1;
}

.page-about .about-partner-label {
  font-size: 14px;
  color: var(--mist);
}

/* ---------- 时间轴与认可 ---------- */
.page-about .about-record-grid {
  margin-top: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--mint) 0%, rgba(61, 245, 200, .18) 100%);
}

.page-about .tl-node {
  position: relative;
  padding: 0 0 26px 38px;
}

.page-about .tl-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--pitch-night);
  border: 2px solid var(--sage);
  transition: background .25s ease, border-color .25s ease, transform .25s ease;
}

.page-about .tl-node.is-active::before {
  background: var(--mint);
  border-color: var(--mint);
  transform: scale(1.18);
}

.page-about .tl-year {
  display: block;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--sage);
  transition: color .25s ease;
}

.page-about .tl-node.is-active .tl-year {
  color: var(--amber);
}

.page-about .tl-card {
  margin-top: 10px;
  padding: 16px 18px;
  background: rgba(10, 59, 39, .6);
  border: 2px solid var(--about-line);
  border-radius: var(--radius-soft);
}

.page-about .tl-title {
  margin: 0 0 6px;
  font-size: 17px;
  color: var(--cream);
}

.page-about .tl-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-record-side {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-about .about-record-side .media-frame {
  margin: 0;
}

.page-about .about-awards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-award {
  padding: 14px 16px;
  border: 2px solid var(--about-line);
  border-radius: var(--radius-soft);
  background: rgba(6, 35, 24, .5);
  transition: border-color .2s ease, transform .2s ease;
}

.page-about .about-award:hover,
.page-about .about-award:focus-within {
  border-color: var(--mint);
  transform: translateY(-2px);
}

.page-about .about-award-badge {
  display: inline-block;
  padding: 3px 9px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--pitch-night);
  background: var(--amber);
  border-radius: var(--radius-pill);
}

.page-about .about-award-name {
  margin: 10px 0 4px;
  font-size: 15px;
  color: var(--cream);
}

.page-about .about-award-meta {
  margin: 0;
  font-size: 13px;
  color: var(--sage);
  transition: color .2s ease;
}

.page-about .about-award:hover .about-award-meta {
  color: var(--mint);
}

/* ---------- 收束 ---------- */
.page-about .about-cta-box {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: clamp(24px, 4vw, 44px);
  background: linear-gradient(140deg, var(--cream) 0%, var(--mist) 100%);
  border: 2px solid var(--ink);
  border-radius: var(--radius-soft);
  box-shadow: 6px 6px 0 rgba(26, 17, 8, .18);
}

.page-about .about-cta-box .section-title {
  margin-top: 8px;
}

.page-about .about-cta-box p {
  margin: 12px 0 0;
  color: #3a3226;
}

.page-about .about-cta-actions {
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .about-scope-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-flow {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

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

  .page-about .about-cta-box {
    grid-template-columns: 1.4fr .8fr;
    align-items: center;
  }

  .page-about .about-cta-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: 1.35fr .75fr;
    align-items: end;
  }

  .page-about .about-team-tabs .tabs-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-team-panel {
    grid-template-columns: 1.1fr 1fr;
    gap: 32px;
  }

  .page-about .about-flow {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .about-award {
    padding: 16px 18px;
  }
}

@media (min-width: 1040px) {
  .page-about .about-frame {
    padding: clamp(36px, 4vw, 60px);
  }

  .page-about .about-split-main {
    padding-right: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-band-card,
  .page-about .about-team-tab,
  .page-about .about-award,
  .page-about .tl-node::before,
  .page-about .tl-year {
    transition: none;
  }

  .page-about .about-band-card:hover,
  .page-about .about-team-tab:hover,
  .page-about .about-award:hover {
    transform: none;
  }
}