.page-about {
  display: block;
  padding-bottom: clamp(56px, 8vw, 104px);
}

/* ---------- 面包屑与首屏 ---------- */

.page-about .crumbs {
  list-style: none;
  margin: 0;
  padding: clamp(20px, 4vw, 34px) 0 0;
  font-size: 13px;
  color: var(--muted);
}

.page-about .crumbs li {
  display: inline;
}

.page-about .crumbs li + li::before {
  content: "/";
  margin: 0 10px;
  color: var(--rule-2);
}

.page-about .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-about .crumbs a:hover,
.page-about .crumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-about .about-head {
  position: relative;
  max-width: 900px;
  padding-block: clamp(28px, 6vw, 62px) clamp(24px, 4vw, 40px);
}

.page-about .about-axis {
  display: none;
}

.page-about .about-head .eyebrow {
  display: block;
  margin-bottom: 14px;
}

.page-about .about-head .lede {
  margin-top: 20px;
  max-width: 66ch;
}

.page-about .about-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px 0;
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.page-about .about-meta li {
  padding: 14px 18px 16px 0;
}

.page-about .about-meta .k {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 6px;
}

.page-about .about-meta .v--mono {
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--text);
}

/* ---------- 小节导航 ---------- */

.page-about .about-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-block: 6px 4px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-nav::-webkit-scrollbar {
  display: none;
}

.page-about .about-nav a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 15px;
  border: 1px solid var(--hair);
  border-radius: 999px;
  background: rgba(11, 29, 24, 0.6);
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              background var(--t-fast) var(--ease);
}

.page-about .about-nav a:hover,
.page-about .about-nav a:focus-visible {
  color: var(--cyan);
  border-color: var(--rule-2);
  background: rgba(63, 224, 198, 0.07);
}

/* ---------- 区块通用 ---------- */

.page-about .about-band {
  padding-block: clamp(40px, 7vw, 82px);
  border-top: 1px solid var(--hair);
}

.page-about .sec-head {
  max-width: 760px;
  margin-bottom: clamp(24px, 4vw, 46px);
}

.page-about .sec-head .eyebrow {
  display: block;
  margin-bottom: 14px;
}

.page-about .sec-head .lede,
.page-about .sec-head p {
  margin-top: 16px;
}

.page-about .about-band p {
  line-height: 1.75;
}

/* ---------- 赛前 / 赛中 / 赛后 ---------- */

.page-about .scenes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .scene {
  position: relative;
  padding: 22px 22px 24px 26px;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  background: linear-gradient(180deg, rgba(18, 48, 40, 0.5), rgba(11, 29, 24, 0.28));
  transition: transform var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}

.page-about .scene::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  border-radius: 2px;
  background: var(--cyan);
  opacity: 0.7;
}

.page-about .scene:hover {
  transform: translateY(-2px);
  border-color: var(--rule);
}

.page-about .scene-tag {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-about .scene h3 {
  margin: 0 0 10px;
}

.page-about .scene p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.page-about .scene:nth-child(2)::before { background: var(--orange); }
.page-about .scene:nth-child(2) .scene-tag { color: var(--orange); }
.page-about .scene:nth-child(3)::before { background: var(--violet); }
.page-about .scene:nth-child(3) .scene-tag { color: var(--violet); }

/* ---------- 四类内容 ---------- */

.page-about .system-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .sys-card {
  position: relative;
  padding: 22px 22px 24px;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  background: var(--panel);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}

.page-about .sys-card::after {
  content: "";
  position: absolute;
  right: -18px;
  top: -18px;
  width: 96px;
  height: 96px;
  background-image: radial-gradient(circle, rgba(201, 168, 106, 0.22) 1px, transparent 1.6px);
  background-size: 9px 9px;
  opacity: 0.5;
  pointer-events: none;
}

.page-about .sys-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 40px;
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: rgba(201, 168, 106, 0.34);
  margin-bottom: 12px;
}

.page-about .sys-card h3 {
  margin: 0 0 12px;
}

.page-about .sys-card p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 15px;
}

.page-about .sys-num {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--hair);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-about .sys-num .num {
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

/* ---------- 赛季时间轴 ---------- */

.page-about .tl-media,
.page-about .team-media,
.page-about .cover-media {
  margin: 0;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--panel-2);
}

.page-about .tl-media {
  aspect-ratio: 2 / 1;
}

.page-about .team-media {
  aspect-ratio: 4 / 3;
}

.page-about .cover-media {
  aspect-ratio: 5 / 3;
  margin-top: clamp(28px, 5vw, 52px);
}

.page-about .tl-media img,
.page-about .team-media img,
.page-about .cover-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-about .media-caption {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.page-about .timeline {
  position: relative;
  list-style: none;
  margin: clamp(30px, 5vw, 52px) 0 0;
  padding: 0;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(201, 168, 106, 0.4) 55%, rgba(201, 168, 106, 0) 100%);
}

.page-about .tl-node {
  position: relative;
  padding: 0 0 30px 28px;
}

.page-about .tl-node:last-child {
  padding-bottom: 0;
}

.page-about .tl-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 13px;
  height: 13px;
  border: 1px solid var(--rule-2);
  border-radius: 50%;
  background: var(--ink);
}

.page-about .tl-node::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-about .tl-year {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-about .tl-body h3 {
  margin: 0 0 8px;
}

.page-about .tl-body p {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 15px;
}

/* ---------- 团队 ---------- */

.page-about .team-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 40px);
}

.page-about .team-total {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 18px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.page-about .team-total-num {
  font-family: var(--font-mono);
  font-size: clamp(52px, 9vw, 76px);
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: var(--cyan);
}

.page-about .team-total-label {
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 22ch;
}

.page-about .team-rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .team-row {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "role count"
    "track track"
    "tip tip";
  gap: 8px 12px;
  padding: 15px 0;
  border-bottom: 1px solid var(--hair);
  outline: none;
}

.page-about .team-row:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
  border-radius: 4px;
}

.page-about .team-role {
  grid-area: role;
  font-size: 15px;
  color: var(--text);
}

.page-about .team-count {
  grid-area: count;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-about .team-track {
  grid-area: track;
  display: block;
  height: 6px;
  border-radius: 3px;
  background: var(--panel-2);
  overflow: hidden;
}

.page-about .team-fill {
  display: block;
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--cyan), rgba(63, 224, 198, 0.2));
  transition: filter var(--t-base) var(--ease);
}

.page-about .team-row:nth-child(2) .team-fill {
  background: linear-gradient(90deg, var(--gold), rgba(201, 168, 106, 0.2));
}
.page-about .team-row:nth-child(3) .team-fill {
  background: linear-gradient(90deg, var(--orange), rgba(255, 122, 47, 0.2));
}
.page-about .team-row:nth-child(4) .team-fill {
  background: linear-gradient(90deg, var(--violet), rgba(124, 92, 255, 0.2));
}

.page-about .team-tip {
  grid-area: tip;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
  opacity: 0.6;
  transition: opacity var(--t-base) var(--ease), color var(--t-base) var(--ease);
}

.page-about .team-row:hover .team-tip,
.page-about .team-row:focus-visible .team-tip {
  opacity: 1;
  color: var(--text);
}

.page-about .team-row:hover .team-count,
.page-about .team-row:focus-visible .team-count {
  color: var(--cyan);
}

/* ---------- 合作与覆盖 ---------- */

.page-about .cover-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .cover-cell {
  position: relative;
  padding: 22px 22px 24px;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  background: var(--panel);
  overflow: hidden;
}

.page-about .cover-cell::after {
  content: "";
  position: absolute;
  right: -26px;
  bottom: -26px;
  width: 132px;
  height: 132px;
  background-image: radial-gradient(circle, rgba(63, 224, 198, 0.3) 1.4px, transparent 1.7px);
  background-size: 10px 10px;
  opacity: 0.55;
  pointer-events: none;
}

.page-about .cover-cell--orange::after {
  background-image: radial-gradient(circle, rgba(255, 122, 47, 0.32) 1.4px, transparent 1.7px);
}

.page-about .cover-cell--violet::after {
  background-image: radial-gradient(circle, rgba(124, 92, 255, 0.34) 1.4px, transparent 1.7px);
}

.page-about .cover-num {
  font-family: var(--font-mono);
  font-size: clamp(40px, 6vw, 56px);
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
  color: var(--cyan);
}

.page-about .cover-cell--orange .cover-num { color: var(--orange); }
.page-about .cover-cell--violet .cover-num { color: var(--violet); }

.page-about .cover-cell h3 {
  margin: 0 0 10px;
}

.page-about .cover-cell p {
  margin: 0;
  max-width: 40ch;
  color: var(--muted);
  font-size: 15px;
}

/* ---------- 从这里开始 ---------- */

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

.page-about .start-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 44px;
  padding: 20px 20px 22px;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  background: linear-gradient(180deg, rgba(18, 48, 40, 0.42), rgba(11, 29, 24, 0.2));
  text-decoration: none;
  color: inherit;
  transition: transform var(--t-base) var(--ease),
              border-color var(--t-base) var(--ease),
              background var(--t-base) var(--ease);
}

.page-about .start-card:hover,
.page-about .start-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--rule-2);
  background: linear-gradient(180deg, rgba(18, 48, 40, 0.7), rgba(11, 29, 24, 0.34));
}

.page-about .start-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-about .start-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-about .start-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-about .start-card:hover .start-title,
.page-about .start-card:focus-visible .start-title {
  color: var(--cyan);
}

.page-about .start-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .start-card--contact {
  border-style: dashed;
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-about .about-meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-about .about-head {
    padding-left: 56px;
  }

  .page-about .about-axis {
    display: block;
    position: absolute;
    left: 0;
    top: clamp(34px, 6vw, 68px);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.34em;
    color: var(--gold);
    opacity: 0.72;
    white-space: nowrap;
  }

  .page-about .scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-top: 1px solid var(--hair);
    border-bottom: 1px solid var(--hair);
  }

  .page-about .scene {
    border: 0;
    border-radius: 0;
    background: none;
    padding: 26px 26px 28px 28px;
  }

  .page-about .scene + .scene {
    border-left: 1px solid var(--hair);
  }

  .page-about .scene:hover {
    transform: none;
  }

  .page-about .system-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .tl-node {
    display: grid;
    grid-template-columns: 118px minmax(0, 1fr);
    column-gap: 28px;
    padding-left: 34px;
  }

  .page-about .tl-year {
    margin-bottom: 0;
    padding-top: 4px;
    text-align: right;
    letter-spacing: 0.1em;
  }

  .page-about .team-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-about .cover-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
  }

  .page-about .cover-cell:nth-child(2) {
    transform: translateY(28px);
  }

  .page-about .cover-cell:nth-child(3) {
    transform: translateY(-16px);
  }
}

@media (min-width: 1080px) {
  .page-about .start-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .start-card--contact {
    grid-column: span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .scene,
  .page-about .start-card,
  .page-about .team-fill {
    transition: opacity var(--t-base) var(--ease);
  }

  .page-about .scene:hover,
  .page-about .start-card:hover,
  .page-about .start-card:focus-visible {
    transform: none;
  }

  .page-about .cover-cell:nth-child(2),
  .page-about .cover-cell:nth-child(3) {
    transform: none;
  }
}
<<<END>>>