.page-about {
  --about-line: rgba(42, 52, 72, 0.72);
  --about-cell: rgba(17, 23, 38, 0.86);
  --about-track: 7.5rem;
  display: block;
  padding-block-end: 4rem;
  overflow-x: clip;
}

.page-about img,
.page-about svg {
  max-width: 100%;
}

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

.page-about .figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: var(--hair-soft);
}

.page-about .figure__cap {
  margin-block-start: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--mist-500);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-block: 1.5rem 1.25rem;
}

.page-about .about-hero h1 {
  margin: 0.55rem 0 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 8vw, 3.25rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--mist-050);
}

.page-about .about-hero .page-lead {
  margin: 0.9rem 0 0;
  max-width: 58ch;
  color: var(--mist-500);
}

.page-about .about-hero__rule {
  display: block;
  height: 2px;
  margin-block: 1.5rem 0;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan-400), var(--indigo-700) 45%, rgba(27, 44, 80, 0) 92%);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 1.4rem 0 0;
  padding: 1px;
  background: var(--about-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-hero__facts > div {
  background: var(--carbon-900);
  padding: 0.85rem 1rem;
}

.page-about .about-hero__facts dt {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--mist-500);
}

.page-about .about-hero__facts dd {
  margin: 0.35rem 0 0;
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--mist-050);
}

/* ---------- 通用分区 ---------- */
.page-about .about-section {
  padding-block-start: 3rem;
}

.page-about .about-section__head {
  display: grid;
  gap: 0.45rem;
  margin-block-end: 1.4rem;
}

.page-about .about-section__head h2 {
  margin: 0;
  max-width: 24ch;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 5.4vw, 2.15rem);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--mist-050);
}

/* ---------- 品牌自述 ---------- */
.page-about .about-story__body {
  display: grid;
  gap: 1.4rem;
}

.page-about .about-story__body .prose p {
  margin: 0 0 0.9rem;
  color: var(--mist-500);
}

.page-about .about-story__body .prose a {
  color: var(--cyan-400);
}

.page-about .about-story__list {
  list-style: none;
  margin: 0;
  padding: 1px;
  display: grid;
  gap: 1px;
  background: var(--about-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-story__list li {
  display: grid;
  gap: 0.3rem;
  padding: 0.95rem 1.05rem;
  background: var(--carbon-900);
}

.page-about .about-story__k {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--cyan-400);
}

.page-about .about-story__list li > span:last-child {
  font-size: 0.93rem;
  line-height: 1.65;
  color: var(--mist-500);
}

/* ---------- 赛季时间轴 ---------- */
.page-about .about-timeline__art {
  margin-block-end: 1.9rem;
}

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

.page-about .tl__item {
  position: relative;
  padding: 0 0 2.25rem 1.5rem;
}

.page-about .tl__item::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 0.5rem;
  bottom: 0;
  width: 1px;
  background: var(--about-line);
}

.page-about .tl__item:last-child::before {
  background: linear-gradient(180deg, var(--about-line), rgba(42, 52, 72, 0));
}

.page-about .tl__item::after {
  content: "";
  position: absolute;
  inset-inline-start: -4px;
  top: 0.5rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 4px rgba(38, 227, 212, 0.14);
}

.page-about .tl__item--live::after {
  background: transparent;
  border: 2px solid var(--orange-500);
  box-shadow: 0 0 0 4px rgba(255, 122, 49, 0.16);
}

.page-about .tl__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--cyan-400);
}

.page-about .tl__item--live .tl__year {
  color: var(--orange-500);
}

.page-about .tl__body h3 {
  margin: 0.4rem 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.14rem;
  letter-spacing: -0.01em;
  color: var(--mist-050);
}

.page-about .tl__body p {
  margin: 0;
  max-width: 60ch;
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--mist-500);
}

.page-about .tl__body a {
  color: var(--cyan-400);
}

/* ---------- 团队与分工 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .about-team__lead > p {
  margin: 0 0 1.2rem;
  max-width: 52ch;
  color: var(--mist-500);
}

.page-about .about-team__band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 1px;
  background: var(--about-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-team__band > div {
  background: var(--carbon-900);
  padding: 0.85rem 0.6rem 0.95rem;
  text-align: center;
}

.page-about .about-team__band dt {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.06em;
  color: var(--mist-500);
}

.page-about .about-team__band dd {
  margin: 0.35rem 0 0;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan-400);
}

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

.page-about .role-grid {
  display: grid;
  gap: 1rem;
  margin-block-start: 1.6rem;
}

.page-about .role {
  padding: 1rem 1.1rem;
  background: var(--carbon-900);
  border: var(--hair-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-micro);
}

.page-about .role__sum {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  cursor: pointer;
  list-style: none;
}

.page-about .role__sum::-webkit-details-marker {
  display: none;
}

.page-about .role__sum::marker {
  content: "";
}

.page-about .role__name {
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--mist-050);
}

.page-about .role__meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--orange-500);
}

.page-about .role__sum:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
  border-radius: 2px;
}

.page-about .role__body {
  margin-block-start: 0.7rem;
  padding-block-start: 0.7rem;
  border-top: var(--hair-soft);
}

.page-about .role__body p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--mist-500);
}

/* ---------- 数据覆盖 ---------- */
.page-about .scale {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: 1px;
  background: var(--about-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .scale__cell {
  display: grid;
  gap: 0.3rem;
  align-content: start;
  padding: 1.1rem 1rem 1.2rem;
  background: var(--carbon-900);
}

.page-about .scale__v {
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 7vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan-400);
}

.page-about .scale__k {
  font-size: 0.84rem;
  color: var(--mist-050);
}

.page-about .scale__n {
  font-size: 0.79rem;
  line-height: 1.6;
  color: var(--mist-500);
}

/* ---------- 资质与备案 ---------- */
.page-about .about-cred__grid {
  display: grid;
  gap: 1.5rem;
}

.page-about .about-cred__art {
  margin: 0;
  max-width: 360px;
}

.page-about .cred {
  display: grid;
  gap: 1px;
  margin: 0 0 1.2rem;
  padding: 1px;
  background: var(--about-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .cred > div {
  display: grid;
  gap: 0.25rem;
  padding: 0.8rem 1rem;
  background: var(--carbon-900);
}

.page-about .cred dt {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--mist-500);
}

.page-about .cred dd {
  margin: 0;
  font-size: 0.98rem;
  color: var(--mist-050);
}

.page-about .about-cred__body > p {
  margin: 0 0 1.2rem;
  max-width: 56ch;
  color: var(--mist-500);
}

.page-about .about-cred__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-section {
    padding-block-start: 4.5rem;
  }

  .page-about .about-section__head {
    margin-block-end: 1.9rem;
  }

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

  .page-about .role:nth-child(2) {
    margin-block-start: 1.1rem;
  }

  .page-about .role:nth-child(3) {
    margin-block-start: 2.2rem;
  }

  .page-about .about-timeline__art {
    margin-block-end: 2.6rem;
  }
}

@media (min-width: 900px) {
  .page-about .tl__item {
    padding: 0 0 2.75rem 9.5rem;
  }

  .page-about .tl__item::before {
    inset-inline-start: 7.5rem;
    top: 0.55rem;
  }

  .page-about .tl__item::after {
    inset-inline-start: calc(7.5rem - 4px);
    top: 0.55rem;
  }

  .page-about .tl__year {
    position: absolute;
    inset-inline-start: 0;
    top: 0.4rem;
    width: 6.5rem;
    font-size: 0.94rem;
  }
}

@media (min-width: 960px) {
  .page-about .about-story__body {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 2.5rem;
    align-items: center;
  }

  .page-about .about-cred__grid {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }

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

  .page-about .scale__cell {
    padding: 1.35rem 1.15rem 1.45rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    transform: none;
  }
}