.page-about {
  --about-cut: clamp(14px, 2vw, 22px);
  --about-gap: clamp(22px, 3.4vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: clamp(26px, 5vw, 56px) 0 clamp(34px, 6vw, 72px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(61, 245, 176, .10) 0%, rgba(61, 245, 176, 0) 58%),
    radial-gradient(90% 70% at 4% 18%, rgba(127, 215, 255, .08) 0%, rgba(127, 215, 255, 0) 62%);
}

.page-about .about-hero__body {
  display: grid;
  gap: var(--about-gap);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-about .about-hero__lead {
  display: grid;
  gap: 14px;
  justify-items: start;
  max-width: 44ch;
}

.page-about .about-hero__lead h1 {
  margin: 0;
  font-size: clamp(30px, 5.4vw, 54px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.01em;
}

.page-about .about-hero__lead .lede {
  margin: 0;
  max-width: 52ch;
}

.page-about .about-index {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .about-index li {
  border-bottom: 1px solid var(--line);
}

.page-about .about-index a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 4px;
  color: var(--mist);
  font-size: 15px;
  text-decoration: none;
  transition: color .22s var(--ease), padding-left .22s var(--ease);
}

.page-about .about-index a .mono {
  font-size: 12px;
  color: var(--neon);
  letter-spacing: .08em;
}

.page-about .about-index a:hover,
.page-about .about-index a:focus-visible {
  color: var(--neon);
  padding-left: 10px;
}

.page-about .about-stats {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  clip-path: polygon(var(--about-cut) 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%, 0 var(--about-cut));
}

.page-about .about-stat {
  background: var(--char);
  padding: clamp(14px, 2.2vw, 22px);
  display: grid;
  gap: 6px;
}

.page-about .about-stat__num {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 600;
  color: var(--neon);
  line-height: 1;
  letter-spacing: .01em;
}

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

/* ---------- 章节通用头 ---------- */
.page-about .about-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(24px, 3.6vw, 42px);
  padding-bottom: clamp(14px, 2vw, 20px);
  border-bottom: 1px solid var(--line);
}

.page-about .about-head__num {
  font-size: clamp(38px, 7vw, 68px);
  font-weight: 600;
  line-height: 1;
  color: var(--neon);
  opacity: .9;
  letter-spacing: .02em;
}

.page-about .about-head__text {
  display: grid;
  gap: 8px;
}

.page-about .about-head__title {
  margin: 0;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 900;
  line-height: 1.24;
}

/* ---------- 01 起点 ---------- */
.page-about .about-origin {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-origin__aside {
  padding: clamp(20px, 3vw, 30px);
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .about-quote {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--mist);
}

.page-about .about-factlist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 14px;
  color: var(--sage);
}

.page-about .about-factlist .mono {
  margin-right: 8px;
  font-weight: 600;
}

/* ---------- 02 赛季时间线 ---------- */
.page-about .about-seasons-figure {
  margin: 0 0 clamp(26px, 4vw, 46px);
}

.page-about .season-line {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .season-line::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, rgba(61, 245, 176, .8), rgba(127, 215, 255, .35) 58%, rgba(61, 245, 176, 0));
}

.page-about .season-item {
  position: relative;
  padding: 0 0 clamp(28px, 4vw, 46px) 40px;
}

.page-about .season-item:last-child {
  padding-bottom: 0;
}

.page-about .season-item::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--neon);
  box-shadow: 0 0 0 5px rgba(61, 245, 176, .10);
  z-index: 2;
}

.page-about .season-item::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 15px;
  width: clamp(16px, 3vw, 30px);
  height: 1px;
  background: linear-gradient(90deg, rgba(124, 154, 143, .55), rgba(124, 154, 143, 0));
  transform: rotate(16deg);
  transform-origin: left center;
  z-index: 1;
}

.page-about .season-item__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.page-about .season-item__tag {
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 600;
  line-height: 1;
  color: var(--neon);
  letter-spacing: .04em;
}

.page-about .season-item__title {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 23px);
  font-weight: 800;
  line-height: 1.32;
}

.page-about .season-item p {
  margin: 0 0 12px;
  max-width: 62ch;
  color: var(--mist);
}

.page-about .season-item > p:last-of-type {
  margin-bottom: 0;
}

.page-about .season-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

/* ---------- 03 团队 ---------- */
.page-about .about-team {
  align-items: start;
}

.page-about .about-team__figure {
  margin: 0;
}

.page-about .team-band {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .team-band__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "role num"
    "bar bar";
  align-items: center;
  gap: 6px 12px;
}

.page-about .team-band__role {
  grid-area: role;
  font-size: 14px;
  font-weight: 700;
  color: var(--mist);
}

.page-about .team-band__num {
  grid-area: num;
  font-size: 18px;
  font-weight: 600;
  color: var(--neon);
}

.page-about .team-band__bar {
  grid-area: bar;
  display: block;
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--neon), var(--ice));
  transform-origin: left center;
  transition: transform .32s var(--ease);
}

.page-about .team-band__row--ops .team-band__bar { width: 36.7%; }
.page-about .team-band__row--video .team-band__bar { width: 26.7%; }
.page-about .team-band__row--tech .team-band__bar { width: 25%; }
.page-about .team-band__row--care .team-band__bar {
  width: 11.7%;
  background: linear-gradient(90deg, var(--amber), rgba(255, 166, 61, .5));
}

.page-about .team-band__row:hover .team-band__bar,
.page-about .team-band__row:focus-within .team-band__bar {
  transform: scaleY(1.7);
}

/* ---------- 04 覆盖范围 ---------- */
.page-about .about-coverage {
  align-items: start;
}

.page-about .about-coverage__list {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  clip-path: polygon(var(--about-cut) 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%, 0 var(--about-cut));
}

.page-about .coverage-item {
  background: var(--char);
  padding: clamp(16px, 2.4vw, 24px);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-about .coverage-item__num {
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 600;
  color: var(--ice);
  line-height: 1.1;
  white-space: nowrap;
}

.page-about .coverage-item__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.35;
}

.page-about .coverage-item p {
  margin: 0;
  font-size: 14px;
  color: var(--sage);
  line-height: 1.62;
}

.page-about .about-coverage__figure {
  margin: 0;
  padding: clamp(20px, 3vw, 30px);
  display: grid;
  gap: 16px;
}

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

.page-about .coverage-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.page-about .about-coverage__figure .media-caption {
  color: var(--mist);
}

/* ---------- 05 合作 ---------- */
.page-about .about-partners {
  align-items: center;
}

.page-about .about-partners__figure {
  margin: 0;
}

.page-about .about-partners__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

/* ---------- 06 做法 ---------- */
.page-about .pact-grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .pact {
  border-top: 2px solid rgba(61, 245, 176, .5);
  padding-top: 16px;
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-about .pact__no {
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-about .pact__title {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  line-height: 1.34;
}

.page-about .pact p {
  margin: 0;
  font-size: 15px;
  color: var(--sage);
  line-height: 1.66;
}

.page-about .about-closing {
  margin-top: clamp(36px, 5vw, 64px);
  padding-top: clamp(24px, 3vw, 38px);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 20px;
  max-width: 68ch;
}

.page-about .about-closing__line {
  margin: 0;
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .about-hero__body {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .9fr);
    align-items: end;
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-head {
    grid-template-columns: minmax(0, 128px) minmax(0, 1fr);
    align-items: end;
    gap: clamp(16px, 3vw, 32px);
  }

  .page-about .about-origin,
  .page-about .about-coverage,
  .page-about .about-partners {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-about .about-partners {
    align-items: center;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-about .season-item {
    padding-left: 56px;
  }

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

@media (min-width: 1000px) {
  .page-about .about-hero__body {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .8fr);
  }

  .page-about .about-origin,
  .page-about .about-coverage {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .8fr);
  }

  .page-about .about-partners {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.25fr);
  }

  .page-about .season-item {
    padding-left: 68px;
  }
}