/* =========================================================
   品牌与团队 · /team/
   地方体育年鉴式阅读：左窄栏年份轴 + 右宽栏叙述
   ========================================================= */

.page-about {
  --about-rail-w: 296px;
  --about-rule: rgba(25, 20, 16, 0.18);
  --about-rule-dark: rgba(213, 225, 238, 0.16);
  --about-rail-bg: rgba(25, 20, 16, 0.045);
  background: var(--paper);
}

/* ---------- 首屏 ---------- */

.about-hero {
  position: relative;
  overflow: hidden;
  padding: 24px 0 60px;
  color: var(--text-on-dark);
  background:
    radial-gradient(115% 85% at 84% 4%, rgba(99, 210, 214, 0.18), transparent 56%),
    radial-gradient(95% 75% at 4% 102%, rgba(225, 74, 43, 0.24), transparent 62%),
    var(--ice-deep);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, rgba(213, 225, 238, 0.045) 0 1px, transparent 1px 52px),
    repeating-linear-gradient(90deg, rgba(213, 225, 238, 0.035) 0 1px, transparent 1px 52px);
}

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

.page-about .about-hero__crumb {
  margin-bottom: 26px;
}

.page-about .about-hero__crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--text-muted-dark);
}

.page-about .about-hero__crumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--ember-soft);
}

.page-about .about-hero__crumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-hero__crumb a:hover,
.page-about .about-hero__crumb a:focus-visible {
  color: var(--ember-soft);
  border-bottom-color: var(--ember-soft);
}

.page-about .about-hero__title {
  margin: 16px 0 24px;
  color: #fff;
  letter-spacing: -0.02em;
}

.page-about .about-hero__lede {
  max-width: 58ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-on-dark);
}

.page-about .about-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 44px;
  margin: 40px 0 0;
  padding: 26px 0 0;
  list-style: none;
  border-top: 1px solid var(--about-rule-dark);
}

.page-about .about-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-about .about-hero__facts .num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-about .about-hero__facts em {
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

/* ---------- 开场说明 ---------- */

.about-intro__grid {
  display: grid;
  gap: 28px;
}

.page-about .about-intro__big {
  margin: 14px 0 0;
  font-size: clamp(20px, 3.2vw, 30px);
  font-weight: 300;
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .about-intro__body p {
  margin: 0 0 18px;
}

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

/* ---------- 发展历程 ---------- */

.page-about .about-history__banner {
  margin-bottom: 40px;
}

.about-history__split {
  display: grid;
  gap: 32px;
}

.page-about .about-rail__sticky {
  padding: 22px 20px 24px;
  border: 1px solid var(--about-rule);
  background: var(--about-rail-bg);
  box-shadow: var(--hard-shadow);
}

.page-about .about-years {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  position: relative;
}

.page-about .about-years::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(to bottom, var(--ember), var(--gold) 60%, var(--crystal));
}

.page-about .about-years__item a {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 0;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

.page-about .about-years__item a:hover,
.page-about .about-years__item a:focus-visible {
  color: var(--ember);
  transform: translateX(3px);
}

.page-about .about-years__num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  min-width: 3.6em;
}

.page-about .about-years__dot {
  width: 11px;
  height: 11px;
  flex: 0 0 11px;
  border-radius: 50%;
  border: 2px solid var(--ember);
  background: var(--paper-old);
}

.page-about .about-years__item a:hover .about-years__dot,
.page-about .about-years__item a:focus-visible .about-years__dot {
  background: var(--ember);
}

.page-about .about-years__name {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--text-muted-dark);
  color: #6b6152;
}

.page-about .about-rail__note {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px dashed var(--about-rule);
}

.page-about .about-rail__note p:last-child {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: #5c5344;
}

.page-about .about-history__body .section-head {
  margin-bottom: 28px;
}

.page-about .about-stage {
  padding: 26px 0 30px;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-stage:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-stage__period {
  display: inline-block;
  margin: 0 0 12px;
  padding: 3px 11px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  font-variant-numeric: tabular-nums;
  color: var(--ember);
  border: 1px solid var(--ember);
}

.page-about .about-stage h3 {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 900;
  line-height: 1.45;
  color: var(--ink);
}

.page-about .about-stage p {
  margin: 0;
  font-size: 17px;
  line-height: 1.85;
  color: #3a3227;
}

.page-about .about-stage__aside {
  margin-top: 18px;
  padding: 14px 0 14px 16px;
  border-left: 3px solid var(--gold);
  background: rgba(233, 185, 73, 0.12);
}

.page-about .about-stage__aside p:last-child {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: #4c4335;
}

.page-about .about-history__more {
  margin: 28px 0 0;
}

/* ---------- 团队分工 ---------- */

.page-about .about-team .section-head {
  margin-bottom: 34px;
}

.page-about .about-team__crew {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--about-rule-dark);
  border: 1px solid var(--about-rule-dark);
}

.page-about .about-crew {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 22px 28px;
  background: var(--ice-night);
  transition: background 0.22s ease;
}

.page-about .about-crew:hover,
.page-about .about-crew:focus-visible,
.page-about .about-crew:focus-within {
  background: #18365e;
  outline: none;
}

.page-about .about-crew__num {
  font-family: var(--font-mono);
  font-size: clamp(38px, 6vw, 54px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
  transition: color 0.22s ease;
}

.page-about .about-crew:hover .about-crew__num {
  color: var(--ember-soft);
}

.page-about .about-crew__role {
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.18em;
  color: #fff;
}

.page-about .about-crew__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-muted-dark);
  transition: color 0.22s ease;
}

.page-about .about-crew:hover .about-crew__note,
.page-about .about-crew:focus-visible .about-crew__note {
  color: var(--text-on-dark);
}

@media (hover: hover) and (min-width: 1024px) {
  .page-about .about-crew__note {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, opacity 0.22s ease, color 0.22s ease;
  }

  .page-about .about-crew:hover .about-crew__note,
  .page-about .about-crew:focus-visible .about-crew__note,
  .page-about .about-crew:focus .about-crew__note {
    max-height: 240px;
    opacity: 1;
  }
}

.page-about .about-team__rhythm {
  display: grid;
  gap: 28px;
  margin-top: 40px;
  padding-top: 36px;
  border-top: 1px solid var(--about-rule-dark);
}

.page-about .about-team__rhythm-text h3 {
  margin: 12px 0 14px;
  font-size: 20px;
  font-weight: 900;
  color: #fff;
}

.page-about .about-team__rhythm-text p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-on-dark);
}

.page-about .about-team__rhythm-text p:last-child {
  margin-bottom: 0;
  color: var(--text-muted-dark);
}

/* ---------- 内容覆盖与分类 ---------- */

.about-taxonomy__split {
  display: grid;
  gap: 36px;
}

.page-about .about-taxonomy__main .section-head {
  margin-bottom: 30px;
}

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

.page-about .about-track {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "no name"
    "no desc";
  column-gap: 18px;
  align-items: start;
  padding: 20px 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-track:last-child {
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-track__no {
  grid-area: no;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  font-variant-numeric: tabular-nums;
  color: var(--ember);
  padding-top: 5px;
}

.page-about .about-track__name {
  grid-area: name;
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 900;
  color: var(--ink);
}

.page-about .about-track__desc {
  grid-area: desc;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #4c4335;
}

.page-about .about-taxonomy__card {
  margin-top: 20px;
  padding: 22px 20px 24px;
  border: 1px solid var(--about-rule);
  background: var(--paper-old);
  box-shadow: var(--hard-shadow);
}

.page-about .about-taxonomy__card h3 {
  margin: 12px 0 10px;
  font-size: 18px;
  font-weight: 900;
  line-height: 1.5;
  color: var(--ink);
}

.page-about .about-taxonomy__card p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #4c4335;
}

/* ---------- 夜场值守主题带 ---------- */

.about-band {
  position: relative;
  overflow: hidden;
  padding: 72px 0;
  color: #fff;
  background:
    radial-gradient(80% 120% at 88% 10%, rgba(225, 74, 43, 0.34), transparent 60%),
    radial-gradient(70% 110% at 6% 96%, rgba(233, 185, 73, 0.18), transparent 64%),
    var(--ice-deep);
}

.page-about .about-band::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--crystal), var(--gold) 48%, var(--ember));
}

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

.page-about .about-band__line {
  margin: 18px 0 20px;
  color: #fff;
  font-weight: 200;
  letter-spacing: -0.02em;
}

.page-about .about-band__text {
  max-width: 56ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-on-dark);
}

/* ---------- 合作与认可 ---------- */

.about-network__grid {
  display: grid;
  gap: 34px;
}

.page-about .about-network__title {
  margin: 14px 0 16px;
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 900;
  line-height: 1.5;
  color: var(--ink);
}

.page-about .about-network__col p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: #4c4335;
}

.page-about .about-network__col .btn {
  margin-top: 8px;
}

.page-about .about-network__col--award {
  padding-top: 26px;
  border-top: 3px solid var(--ember);
}

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

.page-about .about-awards li {
  padding: 16px 0;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-awards li:first-child {
  border-top: 1px solid var(--about-rule);
}

.page-about .about-awards__year {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  font-variant-numeric: tabular-nums;
  color: var(--ember);
}

.page-about .about-awards p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #4c4335;
}

/* ---------- 结尾引导 ---------- */

.page-about .about-cta__inner {
  display: grid;
  gap: 26px;
}

.page-about .about-cta__title {
  margin: 14px 0 14px;
  color: var(--ink);
}

.page-about .about-cta__text {
  max-width: 56ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: #4c4335;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ---------- 响应式 ---------- */

@media (min-width: 768px) {
  .page-about .about-team__crew {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-intro__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .about-history__banner {
    margin-bottom: 52px;
  }

  .page-about .about-tracks .about-track {
    grid-template-columns: 62px 200px 1fr;
    grid-template-areas: "no name desc";
    align-items: baseline;
    column-gap: 20px;
  }
}

@media (min-width: 1024px) {
  .about-hero {
    padding: 30px 0 82px;
  }

  .page-about .about-history__split {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-about .about-rail__sticky {
    position: sticky;
    top: 96px;
  }

  .page-about .about-team__rhythm {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: center;
  }

  .about-taxonomy__split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }

  .about-network__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 56px;
  }

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 1440px) {
  .page-about .about-history__split {
    gap: 76px;
  }
}

/* ---------- 降低动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-about .about-crew,
  .page-about .about-crew__num,
  .page-about .about-crew__note,
  .page-about .about-years__item a {
    transition: opacity 0.2s ease;
  }

  .page-about .about-years__item a:hover {
    transform: none;
  }
}
</main>