.page-about {
  --about-rail: 132px;
  --about-gap: 44px;
  --about-hair: rgba(199, 162, 90, .34);
  --about-body: rgba(244, 238, 226, .82);
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  text-wrap: balance;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: 26px 0 54px;
  overflow: hidden;
  background: var(--ink);
  isolation: isolate;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(95% 125% at 100% 0%, rgba(58, 30, 122, .82), transparent 62%),
    linear-gradient(116deg, transparent 0 54%, rgba(16, 42, 92, .96) 54% 100%);
  pointer-events: none;
  z-index: -2;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(116deg, transparent 0 53.6%, rgba(123, 77, 255, .72) 53.6% 54.1%, transparent 54.1% 100%);
  pointer-events: none;
  z-index: -1;
}

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

.page-about .about-hero .breadcrumbs {
  font-size: 12.5px;
  color: var(--mist);
}

.page-about .about-hero .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-about .about-hero .breadcrumbs a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-about .about-hero .breadcrumbs span[aria-hidden] {
  margin: 0 8px;
  color: rgba(155, 168, 198, .6);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  padding-top: 30px;
}

.page-about .about-hero .eyebrow {
  color: var(--gold);
  letter-spacing: .22em;
  font-size: 12px;
  margin: 0;
}

.page-about .about-hero h1 {
  margin: 16px 0 0;
  font-size: clamp(34px, 7.6vw, 68px);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -.025em;
}

.page-about .about-hero__accent {
  font-style: normal;
  color: var(--lime);
  position: relative;
}

.page-about .about-hero__accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 12%;
  bottom: -.12em;
  height: 3px;
  background: linear-gradient(90deg, var(--violet), transparent);
}

.page-about .about-hero .lead {
  margin: 22px 0 0;
  max-width: 50ch;
  font-size: 16.5px;
  line-height: 1.82;
  color: var(--about-body);
}

.page-about .about-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero__panel {
  position: relative;
  padding: 24px 20px 22px 46px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: rgba(10, 13, 27, .62);
  backdrop-filter: blur(12px);
}

.page-about .about-hero__panel .vertical-note {
  position: absolute;
  left: 13px;
  top: 24px;
  color: var(--gold);
  font-size: 11px;
  letter-spacing: .2em;
  margin: 0;
}

.page-about .about-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-stats li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(155, 168, 198, .2);
}

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

.page-about .about-stats__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 28px;
  line-height: 1;
  color: var(--lime);
  flex: none;
}

.page-about .about-stats__lbl {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 纵向时间轴骨架 ---------- */

.page-about .about-track {
  padding: 44px 0;
}

.page-about .about-track--ink {
  background: var(--ink);
}

.page-about .about-track--deep {
  background: linear-gradient(180deg, rgba(16, 42, 92, .82), rgba(10, 13, 27, .98));
  border-top: 1px solid rgba(123, 77, 255, .18);
  border-bottom: 1px solid rgba(123, 77, 255, .18);
}

.page-about .about-track__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-track__marker {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 30px;
  padding-left: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--gold);
}

.page-about .about-track__marker::before {
  content: "";
  display: none;
}

.page-about .about-track__marker::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -3.5px;
  border-radius: 50%;
  background: var(--violet);
  box-shadow: 0 0 0 3px rgba(200, 255, 61, .32);
}

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

.page-about .about-track__body h2 {
  margin: 0 0 16px;
  font-size: clamp(24px, 4.8vw, 38px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.018em;
  max-width: 26ch;
}

.page-about .about-prose p,
.page-about .about-prose {
  font-size: 16.5px;
  line-height: 1.82;
  color: var(--about-body);
  max-width: 68ch;
}

.page-about .about-prose p {
  margin: 0 0 14px;
}

.page-about .about-track__body > .about-prose {
  margin: 0 0 6px;
}

/* ---------- 覆盖范围 ---------- */

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

.page-about .about-scope__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-scope__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-scope__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--violet);
}

.page-about .about-scope__list .data-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 15px;
  color: var(--lime);
  margin-right: 4px;
}

.page-about .about-globe {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 20px 16px 16px;
  background:
    radial-gradient(80% 70% at 50% 26%, rgba(58, 30, 122, .7), rgba(10, 13, 27, .92)),
    rgba(10, 13, 27, .8);
  text-align: center;
}

.page-about .about-globe svg {
  display: block;
  width: 100%;
  max-width: 176px;
  height: auto;
  margin: 0 auto;
}

.page-about .about-globe svg circle,
.page-about .about-globe svg ellipse,
.page-about .about-globe svg line {
  fill: none;
  stroke: rgba(123, 77, 255, .55);
  stroke-width: 1;
}

.page-about .about-globe svg .globe-lime {
  stroke: rgba(200, 255, 61, .74);
}

.page-about .about-globe__note {
  margin: 14px 0 0;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mist);
}

.page-about .about-figure {
  margin: 26px 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

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

.page-about .about-figure .media-frame__caption {
  display: block;
  padding: 12px 16px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
  background: rgba(10, 13, 27, .72);
}

/* ---------- 一轮比赛怎么被跟完（暖纸白窄带） ---------- */

.page-about .about-cycle {
  position: relative;
  padding: 46px 0 52px;
  background: var(--paper);
  color: var(--print);
  border-top: 1px solid var(--about-hair);
  border-bottom: 1px solid var(--about-hair);
  clip-path: polygon(0 0, 100% 2.6%, 100% 100%, 0 97.4%);
  margin: -1px 0;
}

.page-about .about-cycle .eyebrow {
  color: var(--violet);
  letter-spacing: .22em;
  font-size: 12px;
  margin: 0;
}

.page-about .about-cycle h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 4.4vw, 36px);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -.018em;
  color: var(--print);
  max-width: 24ch;
}

.page-about .about-cycle__lead {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(20, 16, 12, .74);
}

.page-about .about-steps {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .about-steps__item {
  position: relative;
  padding-top: 18px;
  border-top: 1px solid rgba(20, 16, 12, .16);
}

.page-about .about-steps__idx {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  letter-spacing: .16em;
  color: #4B32B8;
  background: rgba(123, 77, 255, .14);
}

.page-about .about-steps__item h3 {
  margin: 14px 0 8px;
  font-size: 17.5px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--print);
}

.page-about .about-steps__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(20, 16, 12, .74);
}

/* ---------- 阵容变动 ---------- */

.page-about .about-roster {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-roster li {
  position: relative;
  padding: 18px 18px 18px 22px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(16, 42, 92, .38);
}

.page-about .about-roster li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--violet), rgba(200, 255, 61, .7));
}

.page-about .about-roster h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--paper);
}

.page-about .about-roster p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--mist);
}

/* ---------- 数据维度 ---------- */

.page-about .about-dims {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 22px;
}

.page-about .about-dims__card {
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(10, 13, 27, .58);
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}

.page-about .about-dims__card:hover {
  transform: translateY(-4px);
  border-color: var(--line);
}

.page-about .about-dims__card h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--lime);
  letter-spacing: .01em;
}

.page-about .about-dims__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--mist);
}

.page-about .about-data__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 22px;
}

.page-about .about-dist {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: 132px;
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(10, 13, 27, .6);
}

.page-about .about-dist__col {
  flex: 1 1 0;
  min-width: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 4px;
}

.page-about .about-dist__bar {
  display: block;
  width: 100%;
  min-height: 4px;
  border-radius: 2px;
}

.page-about .about-dist__bar.is-goal {
  background: linear-gradient(180deg, var(--goal), rgba(47, 215, 155, .32));
}

.page-about .about-dist__bar.is-miss {
  background: linear-gradient(180deg, var(--miss), rgba(255, 95, 126, .32));
}

.page-about .about-dist__col--r1 .is-goal { height: 30%; }
.page-about .about-dist__col--r1 .is-miss { height: 52%; }
.page-about .about-dist__col--r2 .is-goal { height: 46%; }
.page-about .about-dist__col--r2 .is-miss { height: 26%; }
.page-about .about-dist__col--r3 .is-goal { height: 22%; }
.page-about .about-dist__col--r3 .is-miss { height: 60%; }
.page-about .about-dist__col--r4 .is-goal { height: 40%; }
.page-about .about-dist__col--r4 .is-miss { height: 34%; }
.page-about .about-dist__col--r5 .is-goal { height: 54%; }
.page-about .about-dist__col--r5 .is-miss { height: 20%; }
.page-about .about-dist__col--r6 .is-goal { height: 34%; }
.page-about .about-dist__col--r6 .is-miss { height: 44%; }

.page-about .about-dist__legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  align-items: center;
  font-size: 13px;
  color: var(--mist);
}

.page-about .about-dist__legend li {
  display: flex;
  align-items: center;
  gap: 7px;
}

.page-about .about-dist__dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex: none;
}

.page-about .about-dist__dot.is-goal {
  background: var(--goal);
}

.page-about .about-dist__dot.is-miss {
  background: var(--miss);
}

.page-about .about-dist__legend-note {
  flex-basis: 100%;
  font-size: 12.5px;
  color: rgba(155, 168, 198, .78);
  line-height: 1.7;
}

/* ---------- 团队 ---------- */

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 22px;
}

.page-about .about-team__bar {
  display: flex;
  gap: 6px;
  height: 96px;
  margin-bottom: 16px;
}

.page-about .about-team__seg {
  display: block;
  border-radius: var(--r-sm);
  border: 1px solid rgba(244, 238, 226, .1);
  transition: filter .22s var(--ease), transform .22s var(--ease);
}

.page-about .about-team__seg--edit {
  flex: 14 1 0;
  min-width: 0;
  background: linear-gradient(180deg, rgba(123, 77, 255, .78), rgba(58, 30, 122, .9));
}

.page-about .about-team__seg--check {
  flex: 6 1 0;
  min-width: 0;
  background: linear-gradient(180deg, rgba(47, 215, 155, .6), rgba(16, 42, 92, .92));
}

.page-about .about-team__seg--tech {
  flex: 5 1 0;
  min-width: 0;
  background: linear-gradient(180deg, rgba(199, 162, 90, .72), rgba(20, 16, 12, .88));
}

.page-about .about-team__seg:hover {
  filter: brightness(1.28);
  transform: translateY(-4px);
}

.page-about .about-team__legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 13.5px;
  color: var(--mist);
}

.page-about .about-team__legend li {
  display: flex;
  align-items: center;
  gap: 7px;
}

.page-about .about-team__legend .data-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 15px;
  color: var(--paper);
}

.page-about .about-team__dot {
  width: 9px;
  height: 9px;
  border-radius: 2px;
  flex: none;
}

.page-about .about-team__dot--edit { background: var(--violet); }
.page-about .about-team__dot--check { background: var(--goal); }
.page-about .about-team__dot--tech { background: var(--gold); }

.page-about .about-roles {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .about-roles__row {
  padding: 16px 0;
  border-top: 1px solid rgba(155, 168, 198, .18);
}

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

.page-about .about-roles dt {
  font-size: 15px;
  font-weight: 800;
  color: var(--paper);
  letter-spacing: .02em;
}

.page-about .about-roles dd {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--mist);
}

/* ---------- 发展历程 ---------- */

.page-about .about-era {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 24px;
}

.page-about .about-era::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--about-hair) 12%, var(--about-hair) 88%, transparent);
}

.page-about .about-era__item {
  position: relative;
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.page-about .about-era__year {
  position: relative;
  padding-left: 17px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 19px;
  line-height: 1.3;
  color: var(--lime);
}

.page-about .about-era__year::before {
  content: "";
  position: absolute;
  left: 0;
  top: .42em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--violet);
  box-shadow: 0 0 0 3px rgba(200, 255, 61, .28);
}

.page-about .about-era__body h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  color: var(--paper);
  letter-spacing: -.01em;
}

.page-about .about-era__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 合作生态 ---------- */

.page-about .about-partners {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 24px;
}

.page-about .about-partners__card {
  padding: 20px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(16, 42, 92, .36);
  transition: border-color .24s var(--ease), transform .24s var(--ease);
}

.page-about .about-partners__card:hover {
  border-color: var(--line);
  transform: translateY(-4px);
}

.page-about .about-partners__card.is-gold {
  background: rgba(199, 162, 90, .1);
  border-color: var(--line-gold);
}

.page-about .about-partners__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-about .about-partners__num {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: 42px;
  line-height: 1;
  color: var(--lime);
}

.page-about .about-partners__desc {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--mist);
}

/* ---------- 收尾 ---------- */

.page-about .about-next {
  padding: 20px 0 56px;
  background: var(--ink);
}

.page-about .about-next__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 28px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(90% 120% at 0% 0%, rgba(58, 30, 122, .7), transparent 62%),
    rgba(16, 42, 92, .5);
}

.page-about .about-next .eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--gold);
}

.page-about .about-next h2 {
  margin: 12px 0 0;
  font-size: clamp(22px, 4.2vw, 32px);
  font-weight: 900;
  line-height: 1.26;
  letter-spacing: -.018em;
  max-width: 26ch;
}

.page-about .about-next__copy p {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--about-body);
  max-width: 60ch;
}

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

/* ---------- 断点 ---------- */

@media (min-width: 700px) {
  .page-about .about-track {
    padding: 58px 0;
  }

  .page-about .about-track__inner {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: var(--about-gap);
  }

  .page-about .about-track__marker::before {
    content: "";
    display: block;
    position: absolute;
    left: 3px;
    top: -60px;
    bottom: -60px;
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--about-hair) 16%, var(--about-hair) 84%, transparent);
  }

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

  .page-about .about-steps__item {
    padding: 20px 22px 0;
    border-top: 0;
    border-left: 1px solid rgba(20, 16, 12, .16);
  }

  .page-about .about-steps__item:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-about .about-steps__item:last-child {
    padding-right: 0;
  }

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

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

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 34px 0 68px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(300px, .72fr);
    gap: 46px;
    align-items: end;
    padding-top: 46px;
  }

  .page-about .about-cycle {
    padding: 62px 0 68px;
  }

  .page-about .about-scope__grid {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 36px;
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-data__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: center;
    gap: 28px;
  }

  .page-about .about-next__panel {
    grid-template-columns: minmax(0, 1.3fr) minmax(240px, .7fr);
    gap: 36px;
    padding: 36px 34px;
    align-items: center;
  }

  .page-about .about-figure {
    margin-top: 32px;
  }
}

@media (min-width: 1180px) {
  .page-about .about-track {
    padding: 72px 0;
  }

  .page-about .about-hero__panel {
    padding: 28px 24px 26px 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-dims__card,
  .page-about .about-partners__card,
  .page-about .about-team__seg {
    transition: none;
  }

  .page-about .about-dims__card:hover,
  .page-about .about-partners__card:hover,
  .page-about .about-team__seg:hover {
    transform: none;
  }
}