.page-about {
  background: var(--paper);
  color: var(--ink-night);
}

.page-about .shell {
  width: 100%;
  max-width: var(--w-wide);
  margin-inline: auto;
  padding-inline: clamp(20px, 4.5vw, 44px);
}

.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.page-about .about-h2 {
  margin: 14px 0 0;
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  font-weight: 800;
  max-width: 24em;
  text-wrap: balance;
}

.page-about .about-lede {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: clamp(0.975rem, 1.3vw, 1.0625rem);
  line-height: 1.8;
  color: var(--green-deep);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(28px, 4.5vw, 48px) clamp(48px, 7vw, 88px);
  background:
    radial-gradient(115% 85% at 88% -12%, rgba(30, 74, 59, 0.95) 0%, rgba(11, 33, 27, 0) 62%),
    linear-gradient(168deg, var(--green-hall) 0%, var(--ink-night) 100%);
  color: var(--paper);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--amber) 0%, rgba(201, 154, 60, 0) 68%);
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .about-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(26px, 4.5vw, 54px);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: rgba(246, 240, 227, 0.5);
}

.page-about .about-crumb a {
  color: rgba(246, 240, 227, 0.72);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

.page-about .about-crumb span[aria-hidden] {
  color: rgba(201, 154, 60, 0.6);
}

.page-about .about-crumb span:last-child {
  color: var(--amber);
}

.page-about .about-hero__eyebrow {
  color: var(--amber);
}

.page-about .about-hero__title {
  margin: 18px 0 0;
  max-width: 760px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5.2vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--paper);
  text-wrap: balance;
}

.page-about .about-hero__lede {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: clamp(1rem, 1.4vw, 1.0625rem);
  line-height: 1.85;
  color: rgba(246, 240, 227, 0.78);
}

@media (min-width: 980px) {
  .page-about .about-hero__lede {
    margin-left: 22%;
    max-width: 54ch;
  }
}

.page-about .about-hero__facts {
  list-style: none;
  margin: clamp(34px, 5.5vw, 62px) 0 0;
  padding: clamp(24px, 3.6vw, 34px) 0 0;
  border-top: 1px solid rgba(246, 240, 227, 0.16);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 16px;
}

@media (min-width: 760px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-about .fact-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  line-height: 1.1;
  color: var(--amber);
}

.page-about .fact-label {
  display: block;
  margin-top: 7px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(246, 240, 227, 0.6);
}

/* ---------- 发展历程 ---------- */
.page-about .about-story {
  padding-block: clamp(54px, 8vw, 104px);
  background: var(--paper);
}

.page-about .about-story__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

@media (min-width: 900px) {
  .page-about .about-story__grid {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: start;
  }
}

.page-about .story-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
  scrollbar-width: thin;
}

@media (min-width: 900px) {
  .page-about .story-rail {
    position: sticky;
    top: calc(var(--header-h) + 32px);
    flex-direction: column;
    gap: 16px;
    overflow: visible;
    padding: 4px 0 4px 18px;
    border-bottom: 0;
    border-left: 1px solid var(--line-amber);
  }
}

.page-about .story-rail__link {
  flex: 0 0 auto;
  padding: 4px 2px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--green-deep);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.page-about .story-rail__link:hover,
.page-about .story-rail__link:focus-visible {
  color: var(--orange);
}

.page-about .story-list {
  list-style: none;
  margin: clamp(30px, 4.5vw, 46px) 0 0;
  padding: 0;
}

.page-about .story-item {
  display: grid;
  gap: 10px;
  padding-bottom: clamp(26px, 3.6vw, 40px);
  margin-bottom: clamp(26px, 3.6vw, 40px);
  border-bottom: 1px solid var(--line-soft);
}

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

@media (min-width: 700px) {
  .page-about .story-item {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 26px;
  }
}

.page-about .story-item__year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 2.2vw, 1.65rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--amber);
}

.page-about .story-item__title {
  margin: 0 0 10px;
  font-size: clamp(1.1rem, 1.9vw, 1.35rem);
  font-weight: 800;
  color: var(--green-deep);
}

.page-about .story-item__body {
  margin: 0;
  max-width: 58ch;
  font-size: 0.9688rem;
  line-height: 1.85;
  color: var(--green-deep);
}

.page-about .story-figure {
  margin: clamp(32px, 4.5vw, 52px) 0 0;
}

@media (min-width: 900px) {
  .page-about .story-figure {
    max-width: 420px;
    margin-left: auto;
  }
}

.page-about .story-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--line-amber);
  object-fit: cover;
}

.page-about .story-figure figcaption {
  margin-top: 12px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 场馆分布 ---------- */
.page-about .about-venues {
  padding-block: clamp(54px, 8vw, 104px);
  background: var(--paper-old);
}

.page-about .venue-media {
  margin: clamp(28px, 4vw, 40px) 0 0;
}

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

.page-about .venue-facts {
  display: grid;
  gap: 1px;
  margin-top: clamp(28px, 4vw, 44px);
  background: rgba(18, 51, 41, 0.18);
  border: 1px solid rgba(18, 51, 41, 0.18);
}

@media (min-width: 760px) {
  .page-about .venue-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .venue-fact {
  padding: 24px 22px;
  background: var(--paper);
}

.page-about .venue-fact__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  letter-spacing: -0.01em;
  color: var(--green-deep);
}

.page-about .venue-fact__label {
  display: block;
  margin-top: 9px;
  font-size: 0.875rem;
  line-height: 1.65;
  color: rgba(18, 51, 41, 0.72);
}

.page-about .venue-cities {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(24px, 3.4vw, 34px) 0 0;
  padding: 0;
}

.page-about .venue-cities li {
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--green-deep);
  background: rgba(246, 240, 227, 0.75);
  border: 1px solid var(--line-amber);
}

.page-about .venue-note {
  margin: clamp(20px, 3vw, 28px) 0 0;
  max-width: 58ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--green-deep);
}

/* ---------- 训练矩阵 ---------- */
.page-about .about-training {
  padding-block: clamp(54px, 8vw, 104px);
  background: var(--green-deep);
  color: var(--paper);
}

.page-about .about-training .about-h2 {
  color: var(--paper);
}

.page-about .about-training .about-lede {
  color: rgba(246, 240, 227, 0.74);
}

.page-about .train-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(30px, 4.5vw, 50px);
  background: rgba(143, 166, 160, 0.3);
  border: 1px solid rgba(143, 166, 160, 0.3);
}

@media (min-width: 680px) {
  .page-about .train-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-about .train-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .train-card {
  padding: 26px 22px 28px;
  background: var(--green-deep);
  transition: background-color 0.28s var(--ease-drawer);
  outline-offset: -3px;
}

.page-about .train-card:hover,
.page-about .train-card:focus,
.page-about .train-card:focus-within {
  background: var(--green-field);
}

.page-about .train-card:focus-visible {
  outline: 2px solid var(--amber);
}

.page-about .train-card__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-about .train-card__name {
  margin: 12px 0 0;
  font-size: clamp(1.1rem, 1.8vw, 1.28rem);
  font-weight: 800;
  color: var(--paper);
}

.page-about .train-card__brief {
  margin: 10px 0 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: rgba(246, 240, 227, 0.74);
}

.page-about .train-card__more {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 0.875rem;
  line-height: 1.72;
  color: rgba(246, 240, 227, 0.6);
  transition: max-height 0.34s var(--ease-drawer), opacity 0.28s ease, margin-top 0.34s var(--ease-drawer);
}

.page-about .train-card:hover .train-card__more,
.page-about .train-card:focus .train-card__more,
.page-about .train-card:focus-within .train-card__more {
  max-height: 220px;
  opacity: 1;
  margin-top: 12px;
}

@media (max-width: 899px) {
  .page-about .train-card__more {
    max-height: none;
    opacity: 1;
    margin-top: 10px;
  }
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding-block: clamp(54px, 8vw, 104px);
  background: var(--paper);
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
  margin-top: clamp(30px, 4.5vw, 48px);
}

@media (min-width: 900px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }
}

.page-about .team-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 18px;
  padding-bottom: clamp(22px, 3vw, 30px);
  border-bottom: 1px solid var(--line-soft);
}

@media (min-width: 620px) {
  .page-about .team-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .team-stat__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  color: var(--green-deep);
}

.page-about .team-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: rgba(18, 51, 41, 0.7);
}

.page-about .team-groups {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
}

.page-about .team-group {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

@media (min-width: 560px) {
  .page-about .team-group {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

.page-about .team-group__name {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .team-group__desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--green-deep);
}

.page-about .team-note {
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 18px 20px;
  max-width: 56ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--green-deep);
  background: rgba(201, 154, 60, 0.12);
  border-left: 3px solid var(--amber);
}

.page-about .team-figure {
  margin: 0;
}

.page-about .team-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line-amber);
}

.page-about .team-figure figcaption {
  margin-top: 12px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 面板演进 ---------- */
.page-about .about-panel {
  padding-block: clamp(54px, 8vw, 104px);
  background: linear-gradient(175deg, var(--indigo) 0%, #23213c 100%);
  color: var(--paper);
}

.page-about .about-panel .about-h2 {
  color: var(--paper);
}

.page-about .about-panel .about-lede {
  color: rgba(246, 240, 227, 0.74);
}

.page-about .about-panel .eyebrow {
  color: var(--amber);
}

.page-about .panel-path {
  display: block;
  width: 100%;
  height: auto;
  margin: clamp(30px, 4.5vw, 48px) 0 0;
}

.page-about .panel-steps {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(22px, 3vw, 32px);
}

@media (min-width: 700px) {
  .page-about .panel-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-about .panel-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-about .panel-step {
  position: relative;
  padding-top: 22px;
  border-top: 1px solid rgba(201, 154, 60, 0.45);
}

.page-about .panel-step::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
}

.page-about .panel-step:last-child::before {
  background: var(--orange);
}

.page-about .panel-step__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-about .panel-step__name {
  margin: 10px 0 0;
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--paper);
}

.page-about .panel-step__desc {
  margin: 10px 0 0;
  font-size: 0.9063rem;
  line-height: 1.78;
  color: rgba(246, 240, 227, 0.7);
}

.page-about .panel-close {
  margin-top: clamp(28px, 4vw, 42px);
  padding-top: clamp(22px, 3vw, 30px);
  border-top: 1px solid rgba(246, 240, 227, 0.16);
}

.page-about .panel-close__text {
  margin: 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(246, 240, 227, 0.76);
}

.page-about .panel-close__text a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 154, 60, 0.5);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .panel-close__text a:hover,
.page-about .panel-close__text a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 合作与活动 ---------- */
.page-about .about-partners {
  padding-block: clamp(54px, 8vw, 104px);
  background: var(--paper);
}

.page-about .partner-grid {
  display: grid;
  gap: clamp(26px, 3.6vw, 40px);
  margin-top: clamp(30px, 4.5vw, 46px);
}

@media (min-width: 820px) {
  .page-about .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(24px, 3vw, 40px);
  }
}

.page-about .partner-block {
  padding-top: 20px;
  border-top: 2px solid var(--green-field);
}

.page-about .partner-block:nth-child(2) {
  border-top-color: var(--wine);
}

.page-about .partner-block:nth-child(3) {
  border-top-color: var(--amber);
}

.page-about .partner-block__title {
  margin: 0 0 12px;
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--green-deep);
}

.page-about .partner-block__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(18, 51, 41, 0.82);
}

/* ---------- 结尾行动 ---------- */
.page-about .about-next {
  padding-block: clamp(48px, 7vw, 88px);
  background:
    radial-gradient(90% 70% at 12% 0%, rgba(30, 74, 59, 0.9) 0%, rgba(8, 24, 19, 0) 66%),
    var(--ink-night);
  color: var(--paper);
}

.page-about .about-next__inner {
  display: grid;
  gap: clamp(24px, 3.4vw, 36px);
}

@media (min-width: 900px) {
  .page-about .about-next__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    column-gap: clamp(32px, 5vw, 64px);
  }

  .page-about .about-next__note {
    grid-column: 1 / -1;
  }
}

.page-about .about-next__eyebrow {
  color: var(--amber);
}

.page-about .about-next__title {
  margin: 14px 0 0;
  max-width: 20em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.2vw, 2.35rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-next__note {
  margin: 0;
  max-width: 58ch;
  font-size: 0.875rem;
  line-height: 1.75;
  color: rgba(246, 240, 227, 0.62);
}
<<<END>>>