.page-about {
  --about-rail: 96px;
  --about-gap: 24px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

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

.page-about h1,
.page-about h2 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.18;
  margin: 0 0 0.55em;
}

.page-about h1 {
  font-size: clamp(2rem, 7vw, 3.6rem);
  line-height: 1.12;
}

.page-about h2 {
  font-size: clamp(1.5rem, 5vw, 2.4rem);
}

.page-about h3 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.5;
  margin: 0 0 0.4em;
  color: var(--paper);
}

.page-about a:focus-visible,
.page-about summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

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

.page-about .breadcrumb a:hover {
  color: var(--lime);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 26px 0 48px;
  background:
    radial-gradient(90% 70% at 92% 0%, rgba(200, 255, 77, 0.14), transparent 62%),
    radial-gradient(70% 60% at 0% 100%, rgba(164, 71, 45, 0.32), transparent 70%),
    var(--ink);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero .label {
  margin: 18px 0 0;
}

.page-about .about-hero h1 {
  margin: 0.35em 0 0.45em;
  max-width: 20ch;
}

.page-about .about-hero__lead {
  margin: 0;
  max-width: 48ch;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: rgba(242, 239, 230, 0.86);
}

.page-about .about-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 32px 0 0;
  padding: 0;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-facts__item {
  background: var(--ink);
  padding: 14px 14px 16px;
}

.page-about .about-facts__item dt {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-about .about-facts__item dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 1.375rem;
  color: var(--lime);
  letter-spacing: 0.02em;
}

/* ---------- 通用区块 ---------- */
.page-about .about-section {
  padding: 52px 0;
}

.page-about .about-rail-side {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 6px;
}

.page-about .about-rail-side__year {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  color: var(--orange);
  letter-spacing: 0.04em;
}

.page-about .about-rail-side__word {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

/* ---------- 缘起 ---------- */
.page-about .about-origin__grid {
  display: grid;
  gap: 26px;
}

.page-about .about-origin__body p {
  margin: 0 0 1.05em;
  max-width: 54ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(242, 239, 230, 0.8);
}

.page-about .about-origin__body p:last-child {
  margin-bottom: 0;
}

.page-about .about-origin__media {
  margin: 0;
}

.page-about .about-origin__media .media__frame {
  border: 1px solid var(--line);
  box-shadow: 12px 12px 0 rgba(164, 71, 45, 0.28);
  overflow: hidden;
}

.page-about .about-origin__media img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 观察台 ---------- */
.page-about .about-league__head {
  max-width: 62ch;
  margin-bottom: 30px;
}

.page-about .about-league__head p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(242, 239, 230, 0.8);
}

.page-about .about-league__grid {
  display: grid;
  gap: 30px;
}

.page-about .about-compare {
  display: grid;
  gap: 2px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-compare__col {
  padding: 22px 20px 24px;
  background: var(--teal);
}

.page-about .about-compare__col--away {
  background: var(--wine);
}

.page-about .about-compare__col h3 {
  margin: 0 0 14px;
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--paper);
}

.page-about .about-compare__col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-compare__col li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(242, 239, 230, 0.16);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: rgba(242, 239, 230, 0.88);
}

.page-about .about-compare__col li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-league__list h3 {
  margin: 0 0 10px;
  color: var(--lime);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  font-weight: 700;
}

.page-about .about-league__list ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-league__list li {
  display: grid;
  grid-template-columns: 4.5em minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: rgba(242, 239, 230, 0.82);
}

.page-about .about-league__list strong {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  color: var(--paper);
  font-weight: 500;
}

.page-about .about-league__note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--clay);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(242, 239, 230, 0.72);
}

.page-about .about-league__media {
  margin: 36px 0 0;
}

.page-about .about-league__media .media__frame {
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-league__media img {
  display: block;
  width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

/* ---------- 团队 ---------- */
.page-about .about-team__head {
  display: grid;
  gap: 18px;
  margin-bottom: 34px;
}

.page-about .about-team__head p {
  margin: 0;
  max-width: 52ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(242, 239, 230, 0.8);
}

.page-about .about-team__cards {
  display: grid;
  gap: 20px;
}

.page-about .about-team__card {
  background: var(--paper);
  color: var(--ink);
  padding: 22px 20px 24px;
  border: 1px solid rgba(18, 23, 21, 0.16);
  box-shadow: 8px 8px 0 rgba(164, 71, 45, 0.35);
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease), border-color 220ms var(--ease);
}

.page-about .about-team__card:hover,
.page-about .about-team__card:focus-within {
  transform: translateY(-4px);
  border-color: var(--clay);
  box-shadow: 12px 12px 0 rgba(164, 71, 45, 0.45);
}

.page-about .about-team__count {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--clay);
  margin-bottom: 10px;
}

.page-about .about-team__card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.1875rem;
  color: var(--ink);
}

.page-about .about-team__card p {
  margin: 12px 0 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: #2c332e;
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline-sec {
  position: relative;
  background: var(--clay);
  color: var(--paper);
  overflow: hidden;
}

.page-about .about-timeline-sec::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(80% 60% at 100% 0%, rgba(7, 28, 23, 0.4), transparent 66%),
    radial-gradient(60% 50% at 0% 100%, rgba(90, 31, 42, 0.45), transparent 70%);
  pointer-events: none;
}

.page-about .about-timeline-sec .container {
  position: relative;
  z-index: 1;
}

.page-about .about-timeline-sec__lead {
  margin: 0 0 26px;
  max-width: 52ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(242, 239, 230, 0.88);
}

.page-about .about-timeline-sec__grid {
  display: grid;
  gap: 36px;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 4px 0 0 22px;
  border-left: 1px solid rgba(242, 239, 230, 0.5);
}

.page-about .about-timeline__item {
  position: relative;
  padding-bottom: 14px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 17px;
  width: 11px;
  height: 11px;
  border: 2px solid var(--clay);
  border-radius: 50%;
  background: var(--lime);
}

.page-about .about-timeline__details {
  border: 1px solid rgba(242, 239, 230, 0.3);
  background: rgba(7, 28, 23, 0.26);
}

.page-about .about-timeline__details summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-timeline__details summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--lime);
}

.page-about .about-timeline__details[open] summary::after {
  content: "–";
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  color: var(--lime);
  letter-spacing: 0.04em;
}

.page-about .about-timeline__name {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--paper);
}

.page-about .about-timeline__details p {
  margin: 0;
  padding: 0 16px 18px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(242, 239, 230, 0.86);
}

.page-about .about-timeline-sec__media {
  margin: 0;
}

.page-about .about-timeline-sec__media .media__frame {
  border: 1px solid rgba(242, 239, 230, 0.45);
  overflow: hidden;
}

.page-about .about-timeline-sec__media img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ---------- 承诺 ---------- */
.page-about .about-promise__grid {
  display: grid;
  gap: 22px;
}

.page-about .about-promise__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .about-promise__list li {
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-promise__list h3 {
  margin: 0 0 8px;
  color: var(--lime);
  font-size: 1.0625rem;
  letter-spacing: 0.02em;
}

.page-about .about-promise__list p {
  margin: 0;
  max-width: 64ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(242, 239, 230, 0.8);
}

.page-about .about-promise__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 结尾入口 ---------- */
.page-about .about-cta {
  padding: 44px 0 60px;
  border-top: 1px solid var(--line);
}

.page-about .about-cta h2 {
  font-size: clamp(1.35rem, 4vw, 1.9rem);
  margin-bottom: 0;
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-about .about-cta__links a {
  display: inline-flex;
  align-items: center;
  padding: 11px 18px;
  border: 1px solid var(--line);
  color: var(--paper);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: border-color 200ms var(--ease), color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-about .about-cta__links a:hover,
.page-about .about-cta__links a:focus-visible {
  border-color: var(--lime);
  color: var(--lime);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-about .about-hero {
    padding: 34px 0 64px;
  }

  .page-about .about-section {
    padding: 76px 0;
  }

  .page-about .about-team__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-about .about-team__card:nth-child(2) {
    margin-top: 20px;
  }

  .page-about .about-team__card:nth-child(3) {
    margin-top: 10px;
  }

  .page-about .about-cta {
    padding: 56px 0 76px;
  }
}

@media (min-width: 900px) {
  .page-about .about-origin__grid {
    grid-template-columns: var(--about-rail) minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-rail-side {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    position: sticky;
    top: 92px;
    margin-bottom: 0;
  }

  .page-about .about-league__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .about-team__head {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-timeline-sec__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 52px;
    align-items: start;
  }

  .page-about .about-promise__grid {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-origin__body p,
  .page-about .about-league__head p,
  .page-about .about-team__head p {
    font-size: 1.0625rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-team__card,
  .page-about .about-cta__links a {
    transition: none;
  }

  .page-about .about-team__card:hover,
  .page-about .about-team__card:focus-within {
    transform: none;
  }
}
<<<END>>>