/* ============ 关于长城体育 ============ */
.page-about {
  --about-rail-w: 212px;
  background: var(--c-cream);
  color: var(--c-ink);
}

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

.page-about p {
  margin: 0;
}

.page-about .about-shell {
  max-width: var(--shell-w);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  background: var(--c-ink);
  color: var(--c-cream);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -12%;
  width: 70%;
  height: 152%;
  background: linear-gradient(158deg, rgba(16, 58, 50, 0.92) 0%, rgba(44, 44, 99, 0.76) 100%);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-top: clamp(38px, 6vw, 76px);
  padding-bottom: clamp(42px, 7vw, 84px);
}

@media (min-width: 920px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(36px, 5vw, 68px);
    align-items: center;
  }
}

.page-about .about-hero__copy {
  min-width: 0;
}

.page-about .about-hero .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 24px;
  font-size: 13px;
  line-height: 1.5;
}

.page-about .about-hero .crumbs__item {
  color: rgba(245, 242, 234, 0.5);
}

.page-about .about-hero .crumbs__item + .crumbs__item::before {
  content: "/";
  margin: 0 8px;
  color: rgba(245, 242, 234, 0.34);
}

.page-about .about-hero .crumbs__link {
  color: rgba(245, 242, 234, 0.74);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.12s linear, border-color 0.12s linear;
}

.page-about .about-hero .crumbs__link:hover,
.page-about .about-hero .crumbs__link:focus-visible {
  color: var(--c-orange-soft);
  border-bottom-color: var(--c-orange-soft);
}

.page-about .about-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-orange);
  margin: 0 0 14px;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 50px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--c-cream);
  margin: 0 0 20px;
}

.page-about .about-hero__lead {
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.85;
  color: rgba(245, 242, 234, 0.84);
  max-width: 48ch;
  margin: 0;
}

.page-about .about-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--rule-light);
}

.page-about .about-facts li {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-about .about-facts__num {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-orange-soft);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-about .about-facts__label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(245, 242, 234, 0.6);
}

.page-about .about-hero__figure {
  margin: 0;
  border: 1px solid var(--rule-light);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1400 / 800;
  object-fit: cover;
}

/* ---------- 主体分栏 ---------- */
.page-about .about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  padding-top: clamp(40px, 5vw, 70px);
  padding-bottom: clamp(50px, 6vw, 90px);
}

@media (min-width: 1040px) {
  .page-about .about-layout {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
  }
}

/* ---------- 左侧年份轴 ---------- */
.page-about .about-rail {
  display: none;
}

@media (min-width: 1040px) {
  .page-about .about-rail {
    display: block;
    position: sticky;
    top: calc(var(--sticky-top) + 24px);
    align-self: start;
    max-height: calc(100vh - var(--sticky-top) - 48px);
    overflow-y: auto;
  }
}

.page-about .about-rail__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-stone);
  margin: 0 0 16px;
}

.page-about .about-track {
  border-left: 1px solid var(--rule-dark);
  padding-left: 22px;
}

.page-about .about-track__item {
  position: relative;
}

.page-about .about-track__item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 8px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--c-orange);
  border-radius: 50%;
  background: var(--c-cream);
  transition: background-color 0.12s linear;
}

.page-about .about-track__item:hover::before,
.page-about .about-track__item:focus-within::before {
  background: var(--c-orange);
}

.page-about .about-track__link {
  display: block;
  padding: 6px 0 14px;
  text-decoration: none;
}

.page-about .about-track__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-ink);
  font-variant-numeric: tabular-nums;
  transition: color 0.12s linear;
}

.page-about .about-track__note {
  display: block;
  margin-top: 3px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--c-stone);
}

.page-about .about-track__link:hover .about-track__year,
.page-about .about-track__link:focus-visible .about-track__year {
  color: var(--c-orange);
}

.page-about .about-index {
  display: grid;
  gap: 2px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--rule-dark);
}

.page-about .about-index a {
  display: block;
  margin-left: -12px;
  padding: 6px 0 6px 10px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--c-gray);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.12s linear, border-color 0.12s linear;
}

.page-about .about-index a:hover,
.page-about .about-index a:focus-visible {
  color: var(--c-orange);
  border-left-color: var(--c-orange);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-body {
  min-width: 0;
}

.page-about .about-section {
  padding: clamp(38px, 4.6vw, 62px) 0;
  border-top: 1px solid var(--rule-dark);
  scroll-margin-top: calc(var(--sticky-top) + 16px);
}

.page-about .about-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .sec-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-orange);
  margin: 0 0 12px;
}

.page-about .about-section .section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.2vw, 31px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--c-ink);
  margin: 0 0 18px;
}

.page-about .about-lede {
  font-size: clamp(15px, 1.5vw, 16px);
  line-height: 1.85;
  color: var(--c-gray);
  max-width: 62ch;
  margin: 0;
}

/* ---------- 生产流程 ---------- */
.page-about .flow-list {
  display: grid;
  margin-top: 26px;
}

.page-about .flow-list__item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 16px;
  border-bottom: 1px solid var(--rule-dark);
  border-left: 2px solid transparent;
  transition: border-color 0.12s linear, background-color 0.12s linear;
}

.page-about .flow-list__item:first-child {
  border-top: 1px solid var(--rule-dark);
}

.page-about .flow-list__item:hover,
.page-about .flow-list__item:focus-within {
  border-left-color: var(--c-orange);
  background: var(--tint-orange);
}

.page-about .flow-list__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--c-orange);
  font-variant-numeric: tabular-nums;
}

.page-about .flow-list__body {
  min-width: 0;
}

.page-about .flow-list__title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-ink);
  margin: 0 0 8px;
}

.page-about .flow-list__body p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-gray);
  margin: 0;
}

.page-about .pull-quote {
  margin: 30px 0 0;
  padding: 6px 0 6px 20px;
  border-left: 4px solid var(--c-orange);
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 500;
  line-height: 1.75;
  color: var(--c-ink);
}

/* ---------- 团队 ---------- */
.page-about .role-chart {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.page-about .role-chart__row {
  padding: 18px 18px 16px;
  border: 1px solid var(--rule-dark);
  background: rgba(255, 255, 255, 0.6);
  transition: border-color 0.12s linear, background-color 0.12s linear;
}

.page-about .role-chart__row:hover,
.page-about .role-chart__row:focus-within {
  border-color: var(--c-orange);
  background: var(--tint-orange);
}

.page-about .role-chart__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-about .role-chart__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-about .role-chart__count {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--c-orange);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.page-about .role-chart__track {
  display: block;
  height: 10px;
  margin-top: 12px;
  background: rgba(74, 81, 87, 0.13);
  overflow: hidden;
}

.page-about .role-chart__bar {
  display: block;
  height: 100%;
  width: var(--w, 0%);
  background: linear-gradient(90deg, var(--c-green), var(--c-orange));
  transition: filter 0.12s linear;
}

.page-about .role-chart__row:hover .role-chart__bar {
  filter: brightness(1.15);
}

.page-about .role-chart__desc {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-gray);
}

.page-about .tri-cities {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
  border-top: 1px solid var(--rule-dark);
}

.page-about .tri-cities__item {
  position: relative;
  padding: 26px 16px 0 0;
}

.page-about .tri-cities__item::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--c-orange);
}

.page-about .tri-cities__city {
  display: block;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-about .tri-cities__role {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-gray);
}

@media (max-width: 560px) {
  .page-about .tri-cities {
    grid-template-columns: minmax(0, 1fr);
    border-top: 0;
  }

  .page-about .tri-cities__item {
    padding: 0 0 20px 22px;
    border-left: 1px solid var(--rule-dark);
  }

  .page-about .tri-cities__item::before {
    top: 5px;
    left: -5px;
  }

  .page-about .tri-cities__item:last-child {
    padding-bottom: 0;
  }
}

/* ---------- 发展节点 ---------- */
.page-about .milestones {
  display: grid;
  margin-top: 24px;
  border-top: 1px solid var(--rule-dark);
}

.page-about .milestone {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 16px 22px 12px;
  border-bottom: 1px solid var(--rule-dark);
  border-left: 2px solid transparent;
  scroll-margin-top: calc(var(--sticky-top) + 20px);
  transition: border-color 0.12s linear, background-color 0.12s linear;
}

.page-about .milestone:hover {
  border-left-color: var(--c-orange);
  background: var(--tint-orange);
}

.page-about .milestone__year {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-ink);
  font-variant-numeric: tabular-nums;
  transition: color 0.12s linear;
}

.page-about .milestone:hover .milestone__year {
  color: var(--c-orange);
}

.page-about .milestone__body {
  min-width: 0;
}

.page-about .milestone__body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-ink);
  margin: 0 0 8px;
}

.page-about .milestone__body p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-gray);
  margin: 0;
}

.page-about .about-figure {
  margin: 34px 0 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1100 / 700;
  object-fit: cover;
}

.page-about .about-figure figcaption {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--c-orange-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-stone);
}

/* ---------- 合作方 ---------- */
.page-about .about-band {
  margin: 30px 0 0;
}

.page-about .about-band img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1500 / 600;
  object-fit: cover;
}

.page-about .partner-list {
  display: grid;
  gap: 1px;
  margin-top: 30px;
  background: var(--rule-dark);
  border: 1px solid var(--rule-dark);
}

.page-about .partner-list > li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 20px;
  background: var(--c-cream);
  transition: background-color 0.12s linear;
}

.page-about .partner-list > li:hover {
  background: var(--tint-orange);
}

.page-about .partner-list__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-orange);
  font-variant-numeric: tabular-nums;
}

.page-about .partner-list__num em {
  font-style: normal;
  font-size: 0.55em;
  margin-left: 2px;
  color: var(--c-gray);
}

.page-about .partner-list__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-ink);
  margin: 0 0 8px;
}

.page-about .partner-list__desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-gray);
  margin: 0;
}

/* ---------- 认可 ---------- */
.page-about .honor-list {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-about .honor-list__item {
  padding: 20px;
  border: 1px solid var(--rule-dark);
  border-top-width: 3px;
  border-top-color: var(--c-indigo);
  background: rgba(255, 255, 255, 0.55);
  transition: border-top-color 0.12s linear, background-color 0.12s linear;
}

.page-about .honor-list__item:nth-child(2) {
  border-top-color: var(--c-green);
}

.page-about .honor-list__item:nth-child(3) {
  border-top-color: var(--c-wine);
}

.page-about .honor-list__item:hover {
  border-top-color: var(--c-orange);
  background: var(--tint-orange);
}

.page-about .honor-list__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-stone);
  font-variant-numeric: tabular-nums;
}

.page-about .honor-list__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-ink);
  margin: 8px 0 8px;
}

.page-about .honor-list__item p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-gray);
  margin: 0;
}

/* ---------- 覆盖范围 ---------- */
.page-about .reach-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  background: var(--rule-dark);
  border: 1px solid var(--rule-dark);
}

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

.page-about .reach-grid > li {
  padding: 22px 18px;
  background: var(--c-cream);
}

.page-about .reach-grid > li::before {
  content: "";
  display: block;
  width: 26px;
  height: 3px;
  margin-bottom: 14px;
  background: var(--c-green);
}

.page-about .reach-grid > li:nth-child(3n + 2)::before {
  background: var(--c-orange);
}

.page-about .reach-grid > li:nth-child(3n + 3)::before {
  background: var(--c-indigo);
}

.page-about .reach-grid__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-ink);
  font-variant-numeric: tabular-nums;
}

.page-about .reach-grid__num em {
  font-style: normal;
  font-size: 0.46em;
  margin-left: 3px;
  letter-spacing: 0.02em;
  color: var(--c-stone);
}

.page-about .reach-grid__label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-gray);
}

.page-about .about-note {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-gray);
}

/* ---------- 结尾去向 ---------- */
.page-about .about-next {
  background: var(--c-ink);
  color: var(--c-cream);
  border-top: 6px solid var(--c-orange);
}

.page-about .about-next .about-shell {
  padding-top: clamp(40px, 5vw, 62px);
  padding-bottom: clamp(44px, 6vw, 70px);
}

.page-about .about-next__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.6vw, 26px);
  letter-spacing: -0.01em;
  color: var(--c-cream);
  margin: 0 0 24px;
}

.page-about .about-next__links {
  display: grid;
  gap: 1px;
  background: var(--rule-light);
  border: 1px solid var(--rule-light);
}

@media (min-width: 760px) {
  .page-about .about-next__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .about-next__links a {
  display: block;
  padding: 18px 20px;
  background: var(--c-ink);
  border-left: 2px solid transparent;
  color: var(--c-cream);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.12s linear, border-color 0.12s linear;
}

.page-about .about-next__links a span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.7;
  color: rgba(245, 242, 234, 0.62);
}

.page-about .about-next__links a:hover,
.page-about .about-next__links a:focus-visible {
  background: rgba(242, 107, 29, 0.14);
  border-left-color: var(--c-orange);
}

/* ---------- 减动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
  }
}

.page-about {
  --w: 1rem;
}