.page-about {
  --about-line-x: 7px;
  --about-node: 16px;
  display: block;
  overflow-x: clip;
}

.page-about .crumbs {
  margin: clamp(22px, 4vw, 40px) 0 clamp(12px, 2vw, 18px);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--r-xl);
  background: var(--c-deep);
  margin-inline: clamp(0px, 1vw, 16px);
}

.page-about .about-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-about .about-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .4;
  filter: saturate(.8) contrast(1.05);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    repeating-linear-gradient(90deg, rgba(182, 255, 59, .05) 0 2px, transparent 2px 104px),
    linear-gradient(104deg, rgba(11, 31, 26, .96) 0%, rgba(11, 31, 26, .84) 44%, rgba(11, 31, 26, .38) 100%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 2;
  padding-block: clamp(54px, 11vw, 128px);
}

.page-about .about-hero .eyebrow {
  color: var(--c-gold);
}

.page-about .about-hero h1 {
  max-width: 20ch;
  margin: clamp(14px, 2.4vw, 22px) 0 0;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 74px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--c-chalk);
  text-wrap: balance;
}

.page-about .about-hero__lede {
  max-width: 62ch;
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.85;
  color: rgba(231, 237, 233, .82);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(14px, 2.4vw, 28px);
  margin: clamp(28px, 5vw, 52px) 0 0;
  padding: clamp(20px, 3vw, 30px) 0 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.page-about .about-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-about .about-hero__stat-key {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-gray);
}

/* ---------- 时间轴 ---------- */

.page-about .tl,
.page-about .crew,
.page-about .partner,
.page-about .awards,
.page-about .next {
  margin-block: clamp(52px, 8vw, 104px);
}

.page-about .tl__head {
  margin-bottom: clamp(30px, 5vw, 54px);
}

.page-about .tl__head h2,
.page-about .crew__main h2,
.page-about .partner__body h2,
.page-about .awards h2,
.page-about .next h2 {
  margin: 12px 0 0;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 48px);
  line-height: 1.13;
  letter-spacing: -.02em;
  color: var(--c-chalk);
  text-wrap: balance;
}

.page-about .tl-track {
  position: relative;
  display: grid;
  gap: clamp(40px, 7vw, 92px);
}

.page-about .tl-track::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: var(--about-line-x);
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--c-lime) 0%, var(--c-gold) 52%, var(--c-pulse) 100%);
  opacity: .45;
}

.page-about .tl-item {
  position: relative;
  padding-left: clamp(34px, 6vw, 46px);
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: var(--about-node);
  height: var(--about-node);
  border-radius: 50%;
  background: var(--c-deep);
  border: 2px solid var(--c-gold);
  box-shadow: 0 0 0 5px rgba(232, 180, 74, .1);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about .tl-item:hover::before,
.page-about .tl-item:focus-within::before {
  border-color: var(--c-lime);
  box-shadow: 0 0 0 8px rgba(182, 255, 59, .13);
}

.page-about .tl-year {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: clamp(12px, 2vw, 18px);
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(42px, 12vw, 72px);
  line-height: .85;
  letter-spacing: -.03em;
  color: var(--c-gold);
  opacity: .94;
  font-variant-numeric: tabular-nums;
}

.page-about .tl-year__unit {
  font-family: var(--f-mono);
  font-size: clamp(12px, 2.4vw, 15px);
  font-weight: 400;
  letter-spacing: .1em;
  color: var(--c-gray);
  opacity: 1;
}

.page-about .tl-body h3 {
  margin: 0 0 12px;
  font-family: var(--f-head);
  font-weight: 800;
  font-size: clamp(19px, 2.5vw, 28px);
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--c-chalk);
}

.page-about .tl-body > p {
  margin: 0 0 12px;
  max-width: 68ch;
  font-size: clamp(15px, 1.1vw, 16px);
  line-height: 1.85;
  color: rgba(231, 237, 233, .76);
}

.page-about .tl-body > p:last-child {
  margin-bottom: 0;
}

/* ---------- 分段切换 ---------- */

.page-about .tabs {
  margin-top: clamp(18px, 3vw, 26px);
}

.page-about .tabs__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-about .tab {
  appearance: none;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--c-gray);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .04em;
  padding: 9px 16px;
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-about .tab:hover {
  color: var(--c-chalk);
  border-color: var(--c-gold);
}

.page-about .tab[aria-selected="true"] {
  background: var(--c-lime);
  border-color: var(--c-lime);
  color: var(--c-deep);
  font-weight: 700;
}

.page-about .tab:focus-visible {
  outline: 2px solid var(--c-lime);
  outline-offset: 3px;
}

.page-about .panel {
  padding-top: clamp(16px, 2.6vw, 24px);
}

.page-about .panel[hidden] {
  display: none;
}

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

.page-about .tl-points li {
  position: relative;
  padding-left: 22px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(231, 237, 233, .78);
}

.page-about .tl-points li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 11px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-lime);
  opacity: .85;
}

/* ---------- 团队构成 ---------- */

.page-about .crew__grid {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
}

.page-about .crew__main > p {
  max-width: 66ch;
  margin: clamp(14px, 2vw, 20px) 0 0;
  font-size: clamp(15px, 1.1vw, 16px);
  line-height: 1.85;
  color: rgba(231, 237, 233, .76);
}

.page-about .crew__bars {
  list-style: none;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .crew__bar-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.page-about .crew__bar-name {
  font-family: var(--f-head);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--c-chalk);
}

.page-about .crew__bar-num {
  color: var(--c-lime);
}

.page-about .crew__bar-rail {
  display: block;
  height: 8px;
  border-radius: var(--r-pill);
  background: rgba(140, 154, 147, .16);
  overflow: hidden;
}

.page-about .crew__bar-fill {
  display: block;
  height: 100%;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--c-lime), var(--c-gold));
}

.page-about .crew__bar:nth-child(1) .crew__bar-fill { width: 33%; }
.page-about .crew__bar:nth-child(2) .crew__bar-fill { width: 40%; }
.page-about .crew__bar:nth-child(3) .crew__bar-fill { width: 27%; }

.page-about .crew__reach {
  margin-top: clamp(26px, 4vw, 38px);
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--r-lg);
  background: var(--c-turf);
  border: 1px solid var(--line);
}

.page-about .crew__reach p {
  margin: 0 0 18px;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(231, 237, 233, .76);
}

.page-about .crew__dots {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
}

.page-about .crew__dots-base {
  fill: var(--c-gold);
  opacity: .32;
}

.page-about .crew__dot-hot {
  fill: var(--c-lime);
  opacity: .95;
}

.page-about .crew__media,
.page-about .partner__media {
  border-radius: var(--r-lg);
  overflow: hidden;
}

/* ---------- 协作生态 ---------- */

.page-about .partner__grid {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  align-items: center;
}

.page-about .partner__body > p {
  max-width: 62ch;
  margin: clamp(14px, 2vw, 20px) 0 0;
  font-size: clamp(15px, 1.1vw, 16px);
  line-height: 1.85;
  color: rgba(231, 237, 233, .76);
}

.page-about .partner__media {
  max-width: 420px;
  margin-inline: auto;
  border-radius: var(--r-xl);
}

/* ---------- 行业认可 ---------- */

.page-about .awards__grid {
  display: grid;
  gap: clamp(14px, 2.2vw, 22px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .awards__card {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(158deg, var(--c-turf) 0%, rgba(11, 31, 26, .68) 100%);
  overflow: hidden;
}

.page-about .awards__card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 84px;
  height: 84px;
  background: linear-gradient(225deg, rgba(232, 180, 74, .22), transparent 68%);
  pointer-events: none;
}

.page-about .awards__card h3 {
  margin: 14px 0 10px;
  font-family: var(--f-head);
  font-weight: 800;
  font-size: clamp(17px, 2.1vw, 22px);
  line-height: 1.35;
  color: var(--c-chalk);
}

.page-about .awards__card p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(231, 237, 233, .75);
}

.page-about .awards__card--wide {
  background: linear-gradient(158deg, rgba(232, 180, 74, .14) 0%, rgba(11, 31, 26, .76) 100%);
}

/* ---------- 下一个赛季 ---------- */

.page-about .next__list {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-about .next__item {
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: rgba(22, 48, 38, .5);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.page-about .next__item:hover {
  transform: translateY(-4px);
  border-color: rgba(182, 255, 59, .4);
}

.page-about .next__idx {
  display: block;
  margin-bottom: 12px;
  font-family: var(--f-display);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--c-lime);
}

.page-about .next__item h3 {
  margin: 0 0 10px;
  font-family: var(--f-head);
  font-weight: 800;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.35;
  color: var(--c-chalk);
}

.page-about .next__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(231, 237, 233, .74);
}

.page-about .next__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 4vw, 44px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .awards__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .partner__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .85fr);
    gap: clamp(40px, 6vw, 80px);
  }

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

@media (min-width: 960px) {
  .page-about .tl-item {
    display: grid;
    grid-template-columns: clamp(140px, 15vw, 216px) minmax(0, 1fr);
    gap: 0 clamp(28px, 4vw, 62px);
    padding-left: clamp(48px, 5vw, 72px);
  }

  .page-about .tl-item::before {
    top: 16px;
  }

  .page-about .tl-year {
    justify-content: flex-end;
    margin-bottom: 0;
    font-size: clamp(54px, 6vw, 104px);
  }

  .page-about .crew__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr);
    align-items: start;
    gap: clamp(40px, 5vw, 72px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tab,
  .page-about .tl-item::before,
  .page-about .next__item {
    transition: none;
  }

  .page-about .next__item:hover {
    transform: none;
  }
}