.page-about {
  --about-gap: clamp(16px, 3vw, 28px);
  --about-line: rgba(46, 115, 96, .38);
  --about-soft: rgba(46, 115, 96, .18);
  display: block;
  overflow-x: hidden;
  background-color: var(--dj-ink);
  background-image:
    linear-gradient(var(--about-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-soft) 1px, transparent 1px);
  background-size: 56px 56px;
  color: var(--dj-paper);
  font-family: var(--dj-font-body);
  font-size: 16px;
  line-height: 1.75;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  margin: 0;
  font-family: var(--dj-font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--dj-paper);
}

.page-about p {
  margin: 0;
}

.page-about a {
  color: inherit;
}

.page-about .dj-num {
  font-family: var(--dj-font-num);
  font-variant-numeric: tabular-nums;
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumb {
  padding: 14px 0 0;
}

.page-about .dj-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--dj-font-num);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--dj-muted);
}

.page-about .dj-breadcrumb a {
  color: var(--dj-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s, border-color .2s;
}

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

.page-about .dj-breadcrumb__sep {
  color: var(--dj-moss);
}

.page-about .dj-breadcrumb__count {
  color: var(--dj-paper);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(26px, 5vw, 56px) 0 clamp(30px, 6vw, 64px);
  border-bottom: 1px solid var(--about-line);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(111, 227, 200, .12), transparent 62%),
    linear-gradient(180deg, var(--dj-cedar), var(--dj-ink));
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .about-hero__eyebrow {
  font-family: var(--dj-font-num);
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--dj-sand);
  margin-bottom: 12px;
}

.page-about .about-hero h1 {
  font-size: clamp(30px, 6.2vw, 58px);
  line-height: 1.12;
  max-width: 15em;
}

.page-about .about-hero__intro {
  margin-top: 18px;
  max-width: 42em;
  color: var(--dj-muted);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

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

.page-about .about-stat {
  background: rgba(11, 30, 25, .88);
  padding: 16px 14px 18px;
  position: relative;
}

.page-about .about-stat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 26px;
  height: 2px;
  background: var(--dj-cyan);
}

.page-about .about-stat dt {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--dj-muted);
}

.page-about .about-stat dd {
  margin: 6px 0 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--dj-paper);
}

.page-about .about-stat dd .dj-num {
  color: var(--dj-cyan);
  font-size: 24px;
}

/* ---------- 章节目录 ---------- */
.page-about .about-directory {
  background: rgba(11, 30, 25, .82);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-directory__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 10px;
  padding-bottom: 10px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-directory__label {
  flex: none;
  font-family: var(--dj-font-num);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--dj-sand);
}

.page-about .about-directory__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-directory__list a {
  display: inline-block;
  white-space: nowrap;
  padding: 6px 12px;
  border: 1px solid var(--about-line);
  font-size: 13px;
  color: var(--dj-muted);
  text-decoration: none;
  transition: color .2s, border-color .2s, background-color .2s;
}

.page-about .about-directory__list a:hover,
.page-about .about-directory__list a:focus-visible {
  color: var(--dj-cyan);
  border-color: var(--dj-cyan);
  background: rgba(111, 227, 200, .08);
}

/* ---------- 通用章节 ---------- */
.page-about .about-section {
  padding: clamp(40px, 7vw, 84px) 0;
}

.page-about .about-head {
  max-width: 780px;
  margin-bottom: clamp(22px, 4vw, 38px);
}

.page-about .about-head__index {
  font-family: var(--dj-font-num);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--dj-sand);
  margin-bottom: 10px;
}

.page-about .about-head h2 {
  font-size: clamp(24px, 4.2vw, 38px);
  line-height: 1.24;
}

.page-about .about-head p:not(.about-head__index) {
  margin-top: 12px;
  color: var(--dj-muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .about-figure-cap {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--dj-muted);
  letter-spacing: .02em;
}

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

.page-about .dj-figure__media {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--dj-cedar);
  border: 1px solid var(--about-line);
  filter: saturate(.92) contrast(1.04);
}

/* ---------- 01 时间轴 ---------- */
.page-about .about-timeline {
  background: linear-gradient(180deg, var(--dj-ink), rgba(18, 54, 44, .55) 55%, var(--dj-ink));
}

.page-about .about-timeline__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .about-timeline__figure .dj-figure__media {
  aspect-ratio: 14 / 9;
  clip-path: var(--dj-cut);
}

.page-about .about-track {
  position: relative;
  margin: 0;
  padding: 0 0 0 34px;
  list-style: none;
}

.page-about .about-track::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 12px;
  bottom: 24px;
  width: 2px;
  background: linear-gradient(180deg, var(--dj-cyan), var(--dj-moss) 52%, rgba(46, 115, 96, 0) 100%);
}

.page-about .about-track__item {
  position: relative;
  margin-bottom: 14px;
  padding: 16px 18px 18px;
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--dj-moss);
  background: linear-gradient(180deg, rgba(18, 54, 44, .92), rgba(11, 30, 25, .92));
  transition: border-color .25s, transform .25s, background-color .25s;
}

.page-about .about-track__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 24px;
  width: 12px;
  height: 12px;
  background: var(--dj-ink);
  border: 2px solid var(--dj-cyan);
  transform: rotate(45deg);
  transition: background-color .25s;
}

.page-about .about-track__item:hover,
.page-about .about-track__item:focus-within {
  border-color: rgba(111, 227, 200, .55);
  border-left-color: var(--dj-cyan);
  transform: translateX(4px);
}

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

.page-about .about-track__year {
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--dj-cyan);
}

.page-about .about-track__item h3 {
  margin: 6px 0 8px;
  font-size: 18px;
  line-height: 1.4;
}

.page-about .about-track__item p:not(.about-track__year) {
  color: var(--dj-muted);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- 02 比赛日流程 ---------- */
.page-about .about-flow {
  background: var(--dj-ink);
  border-top: 1px solid var(--about-line);
}

.page-about .about-flow__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
}

.page-about .about-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-about .about-steps__item {
  padding: 14px 16px 16px;
  border: 1px solid var(--about-line);
  border-top: 3px solid var(--dj-moss);
  background: rgba(18, 54, 44, .5);
  transition: background-color .25s, border-top-color .25s;
}

.page-about .about-steps__item:hover {
  background: rgba(28, 78, 63, .55);
  border-top-color: var(--dj-cyan);
}

.page-about .about-steps__no {
  font-family: var(--dj-font-num);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--dj-sand);
}

.page-about .about-steps__item h3 {
  margin: 8px 0 6px;
  font-size: 16.5px;
}

.page-about .about-steps__item p:not(.about-steps__no) {
  color: var(--dj-muted);
  font-size: 14px;
  line-height: 1.75;
}

.page-about .about-flow__side {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .about-flow__figure .dj-figure__media {
  aspect-ratio: 3 / 2;
}

.page-about .about-note {
  padding: 16px 18px 18px;
  border: 1px solid rgba(111, 227, 200, .45);
  background: rgba(11, 30, 25, .9);
  clip-path: var(--dj-cut);
}

.page-about .about-note--sand {
  border-color: rgba(224, 138, 60, .5);
}

.page-about .about-note__title {
  font-family: var(--dj-font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: -.01em;
  color: var(--dj-cyan);
  margin-bottom: 6px;
}

.page-about .about-note--sand .about-note__title {
  color: var(--dj-sand);
}

.page-about .about-note p:not(.about-note__title) {
  color: var(--dj-muted);
  font-size: 13.5px;
  line-height: 1.8;
}

/* ---------- 03 覆盖范围 ---------- */
.page-about .about-coverage {
  margin: clamp(36px, 6vw, 72px) 0;
  padding: clamp(40px, 7vw, 78px) 0;
  background:
    radial-gradient(90% 120% at 12% 10%, rgba(224, 138, 60, .09), transparent 60%),
    linear-gradient(120deg, var(--dj-cedar), var(--dj-ink) 70%);
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
  clip-path: polygon(0 0, 100% 26px, 100% 100%, 0 calc(100% - 26px));
}

.page-about .about-map__wrap {
  border: 1px solid var(--about-line);
  background: rgba(11, 30, 25, .55);
  padding: clamp(12px, 2.4vw, 26px);
}

.page-about .about-map {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-map text {
  font-family: var(--dj-font-body);
}

.page-about .about-map .map-league {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-about .about-map .map-meta {
  font-size: 13px;
  fill: var(--dj-muted);
}

.page-about .about-map .map-num {
  font-family: var(--dj-font-num);
  font-size: 24px;
  font-variant-numeric: tabular-nums;
}

.page-about .about-map .map-num--big {
  font-size: 34px;
}

.page-about .about-map .map-small {
  font-family: var(--dj-font-num);
  font-size: 12px;
  letter-spacing: .1em;
  fill: var(--dj-muted);
}

/* ---------- 04 团队与班次 ---------- */
.page-about .about-team {
  background: var(--dj-ink);
}

.page-about .about-team__banner {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-about .about-team__banner .dj-figure__media {
  aspect-ratio: 19 / 7;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 22px));
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .about-ring__wrap {
  text-align: center;
}

.page-about .about-ring {
  display: block;
  width: min(260px, 68vw);
  height: auto;
  margin: 0 auto;
}

.page-about .about-ring .ring-num {
  font-family: var(--dj-font-num);
  font-size: 38px;
  font-weight: 700;
}

.page-about .about-ring .ring-cap {
  font-family: var(--dj-font-body);
  font-size: 12px;
  letter-spacing: .14em;
}

.page-about .about-ring__note {
  margin-top: 14px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--dj-muted);
}

.page-about .about-shifts {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-shifts__item {
  padding: 16px 18px 18px;
  border: 1px solid var(--about-line);
  border-left: 4px solid var(--dj-moss);
  background: rgba(18, 54, 44, .52);
  transition: transform .25s, background-color .25s;
}

.page-about .about-shifts__item--a {
  border-left-color: var(--dj-cyan);
}

.page-about .about-shifts__item--b {
  border-left-color: var(--dj-sand);
}

.page-about .about-shifts__item--c {
  border-left-color: var(--dj-gold);
}

.page-about .about-shifts__item:hover,
.page-about .about-shifts__item:focus-within {
  transform: translateX(5px);
  background: rgba(28, 78, 63, .6);
}

.page-about .about-shifts__time {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--dj-cyan);
}

.page-about .about-shifts__item--b .about-shifts__time {
  color: var(--dj-sand);
}

.page-about .about-shifts__item--c .about-shifts__time {
  color: var(--dj-gold);
}

.page-about .about-shifts__item h3 {
  margin: 6px 0 8px;
  font-size: 17px;
}

.page-about .about-shifts__item p:not(.about-shifts__time) {
  color: var(--dj-muted);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- 05 合作生态 ---------- */
.page-about .about-partners {
  background: linear-gradient(180deg, rgba(18, 54, 44, .5), var(--dj-ink));
  border-top: 1px solid var(--about-line);
}

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

.page-about .about-card {
  position: relative;
  padding: 20px 18px 22px;
  border: 1px solid var(--about-line);
  background: rgba(11, 30, 25, .85);
  transition: border-color .25s, transform .25s;
}

.page-about .about-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 58px;
  height: 3px;
  background: var(--dj-moss);
}

.page-about .about-card--cyan::before {
  background: var(--dj-cyan);
}

.page-about .about-card--sand::before {
  background: var(--dj-sand);
}

.page-about .about-card--gold::before {
  background: var(--dj-gold);
}

.page-about .about-card:hover {
  transform: translateY(-4px);
  border-color: rgba(111, 227, 200, .5);
}

.page-about .about-card__tag {
  font-family: var(--dj-font-num);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--dj-muted);
}

.page-about .about-card h3 {
  margin: 10px 0 10px;
  font-size: 18px;
  line-height: 1.4;
}

.page-about .about-card p:not(.about-card__tag) {
  color: var(--dj-muted);
  font-size: 14.5px;
  line-height: 1.82;
}

/* ---------- 结尾行动区 ---------- */
.page-about .about-cta {
  margin-top: clamp(36px, 6vw, 72px);
  padding: clamp(34px, 6vw, 62px) 0;
  background:
    radial-gradient(80% 140% at 90% 100%, rgba(111, 227, 200, .14), transparent 62%),
    linear-gradient(100deg, var(--dj-cedar), var(--dj-ink));
  border-top: 1px solid var(--about-line);
}

.page-about .about-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about .about-cta h2 {
  font-size: clamp(22px, 3.6vw, 32px);
  line-height: 1.28;
}

.page-about .about-cta p {
  margin-top: 12px;
  max-width: 44em;
  color: var(--dj-muted);
  font-size: 15px;
  line-height: 1.82;
}

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

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

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

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

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }

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

  .page-about .about-timeline__grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

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

  .page-about .about-flow__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-about .about-team__grid {
    grid-template-columns: 5fr 7fr;
    align-items: center;
  }

  .page-about .about-cta__inner {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }

  .page-about .about-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1180px) {
  .page-about .about-partners__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}