.page-about {
  --about-rule: rgba(245, 248, 255, 0.12);
  --about-rule-ink: rgba(11, 24, 52, 0.13);
  --about-body-dark: rgba(245, 248, 255, 0.84);
  --about-body-soft: rgba(245, 248, 255, 0.72);
  --about-body-ink: rgba(11, 24, 52, 0.8);
  --about-body-ink-soft: rgba(11, 24, 52, 0.68);

  padding-top: var(--top-h);
  overflow-x: hidden;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.18;
}

.page-about p {
  margin: 0;
}

.page-about a {
  color: inherit;
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumbs {
  padding-top: 20px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 30px 0 0;
  background:
    radial-gradient(120% 92% at 88% 0%, rgba(43, 227, 210, 0.16), transparent 58%),
    linear-gradient(168deg, var(--ink-2) 0%, var(--ink) 46%, var(--ink-3) 100%);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -6%;
  right: -12%;
  width: 62%;
  height: 78%;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(150deg, rgba(74, 140, 255, 0.3) 0%, rgba(43, 227, 210, 0.08) 52%, transparent 76%);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 60%);
}

.page-about .about-hero__inner {
  display: grid;
  gap: 28px;
  padding-bottom: 6px;
}

.page-about .about-hero h1 {
  margin-top: 14px;
  font-size: clamp(29px, 7.2vw, 56px);
  line-height: 1.1;
}

.page-about .about-hero__lead {
  margin-top: 18px;
  max-width: 36em;
  font-size: 16.5px;
  line-height: 1.8;
  color: rgba(245, 248, 255, 0.86);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--about-rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 32px 0 0;
  padding-bottom: 36px;
  list-style: none;
}

.page-about .about-hero__stats li {
  padding: 4px 0 4px 12px;
  border-left: 2px solid var(--neon);
}

.page-about .about-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 25px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-hero__lab {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  padding: 56px 0 60px;
  background: var(--ink);
}

.page-about .lj-section-head {
  margin-bottom: 24px;
}

.page-about .about-tl__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
}

.page-about .about-tl__jump a {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border: 1px solid var(--about-rule);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--white);
  text-decoration: none;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-about .about-tl__jump a:hover,
.page-about .about-tl__jump a:focus-visible {
  border-color: var(--neon);
  background: rgba(43, 227, 210, 0.1);
}

.page-about .about-tl {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-tl__item {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 18px;
  border: 1px solid var(--about-rule);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.055) 0%, rgba(255, 255, 255, 0.018) 100%);
  scroll-margin-top: calc(var(--top-h) + 20px);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-tl__item:hover {
  transform: translateY(-4px);
  border-color: rgba(43, 227, 210, 0.5);
}

.page-about .about-tl__item.is-paper {
  border-color: var(--about-rule-ink);
  background: var(--paper);
  color: var(--ink);
}

.page-about .about-tl__item.is-paper:hover {
  border-color: rgba(255, 122, 47, 0.55);
}

.page-about .about-tl__rail {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-tl__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 29px;
  font-weight: 700;
  line-height: 1;
  color: var(--neon);
}

.page-about .about-tl__year {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--muted);
}

.page-about .about-tl__item.is-paper .about-tl__num {
  color: var(--orange);
}

.page-about .about-tl__item.is-paper .about-tl__year {
  color: var(--about-body-ink-soft);
}

.page-about .about-tl__title {
  margin-bottom: 10px;
  font-size: 18.5px;
}

.page-about .about-tl__text {
  margin-bottom: 10px;
  font-size: 15.4px;
  line-height: 1.8;
  color: var(--about-body-dark);
}

.page-about .about-tl__item.is-paper .about-tl__text {
  color: var(--about-body-ink);
}

.page-about .about-tl__gain {
  padding-left: 12px;
  border-left: 2px solid var(--orange);
  font-size: 14.4px;
  line-height: 1.75;
  color: var(--about-body-soft);
}

.page-about .about-tl__item.is-paper .about-tl__gain {
  color: var(--about-body-ink-soft);
}

.page-about .about-tl__more {
  margin-top: 14px;
}

.page-about .about-tl__more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-size: 13.5px;
  color: var(--neon);
}

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

.page-about .about-tl__more summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: inherit;
}

.page-about .about-tl__more[open] summary::after {
  content: "–";
}

.page-about .about-tl__item.is-paper .about-tl__more summary {
  color: var(--ink-2);
}

.page-about .about-tl__item.is-paper .about-tl__more summary::after {
  color: var(--orange);
}

.page-about .about-tl__more ul {
  display: grid;
  gap: 6px;
  margin: 12px 0 0;
  padding-left: 18px;
}

.page-about .about-tl__more li {
  font-size: 14.3px;
  line-height: 1.72;
  color: var(--about-body-soft);
}

.page-about .about-tl__item.is-paper .about-tl__more li {
  color: var(--about-body-ink-soft);
}

/* ---------- 暖纸色阅读区：生产流程 ---------- */
.page-about .about-flow {
  padding: 52px 0 56px;
  background: var(--paper);
  color: var(--ink);
}

.page-about .about-flow .lj-eyebrow {
  color: rgba(11, 24, 52, 0.58);
}

.page-about .about-flow .lj-section-title {
  color: var(--ink);
}

.page-about .about-flow .lj-section-desc {
  color: var(--about-body-ink);
}

.page-about .about-flow__layout {
  display: grid;
  gap: 30px;
}

.page-about .about-flow__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-about .about-flow__jump a {
  display: inline-block;
  padding: 6px 13px;
  border: 1px solid rgba(11, 24, 52, 0.14);
  border-radius: 999px;
  background: rgba(11, 24, 52, 0.05);
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-about .about-flow__jump a:hover,
.page-about .about-flow__jump a:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 122, 47, 0.1);
}

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

.page-about .about-flow__step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 16px 16px 14px;
  border: 1px solid rgba(11, 24, 52, 0.1);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.68);
  scroll-margin-top: calc(var(--top-h) + 20px);
}

.page-about .about-flow__idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--orange);
  border-right: 2px solid rgba(11, 24, 52, 0.12);
  padding-right: 8px;
}

.page-about .about-flow__step h3 {
  margin-bottom: 6px;
  font-size: 16.2px;
}

.page-about .about-flow__step p {
  font-size: 14.7px;
  line-height: 1.78;
  color: var(--about-body-ink);
}

.page-about .about-flow__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(11, 24, 52, 0.12);
  border-radius: var(--radius);
}

.page-about .about-flow__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding: 52px 0 56px;
  background: var(--ink);
}

.page-about .about-team__grid {
  display: grid;
  gap: 16px;
}

.page-about .about-team__card {
  padding: 22px 20px;
  border: 1px solid var(--about-rule);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-team__card:hover {
  transform: translateY(-4px);
  border-color: rgba(43, 227, 210, 0.5);
}

.page-about .about-team__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
  color: var(--neon);
}

.page-about .about-team__card:nth-child(2) .about-team__num {
  color: var(--blue);
}

.page-about .about-team__card:nth-child(3) .about-team__num {
  color: var(--orange);
}

.page-about .about-team__card h3 {
  margin: 12px 0 8px;
  font-size: 17px;
}

.page-about .about-team__card p {
  font-size: 14.7px;
  line-height: 1.78;
  color: rgba(245, 248, 255, 0.78);
}

.page-about .about-team__note {
  margin-top: 18px;
  font-size: 14.7px;
  line-height: 1.82;
  color: var(--about-body-soft);
}

.page-about .about-team__note a {
  color: var(--neon);
  text-underline-offset: 3px;
}

/* ---------- 数据与底座 ---------- */
.page-about .about-data {
  padding: 52px 0 56px;
  background: var(--ink-3);
}

.page-about .about-data__inner {
  display: grid;
  gap: 28px;
}

.page-about .about-data__copy p {
  margin-bottom: 14px;
  font-size: 15.4px;
  line-height: 1.82;
  color: var(--about-body-dark);
}

.page-about .about-data__facts {
  display: grid;
  gap: 1px;
  margin: 22px 0 0;
  padding: 0;
  overflow: hidden;
  border-radius: 12px;
  background: rgba(245, 248, 255, 0.12);
  list-style: none;
}

.page-about .about-data__facts li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 16px;
  padding: 13px 16px;
  background: var(--ink-2);
}

.page-about .about-data__k {
  font-size: 14px;
  color: var(--muted);
}

.page-about .about-data__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14.4px;
  color: var(--neon);
}

.page-about .about-data__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--about-rule);
  border-radius: var(--radius);
}

.page-about .about-data__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

/* ---------- 规模与分量 ---------- */
.page-about .about-scale {
  padding: 52px 0 56px;
  background: var(--paper);
  color: var(--ink);
}

.page-about .about-scale .lj-eyebrow {
  color: rgba(11, 24, 52, 0.58);
}

.page-about .about-scale .lj-section-title {
  color: var(--ink);
}

.page-about .about-scale .lj-section-desc {
  color: var(--about-body-ink);
}

.page-about .about-scale__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .about-scale__stat {
  padding: 16px 14px;
  border: 1px solid rgba(11, 24, 52, 0.1);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.66);
}

.page-about .about-scale__num {
  display: block;
  overflow-wrap: anywhere;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(18px, 4.6vw, 28px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
}

.page-about .about-scale__lab {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--about-body-ink-soft);
}

.page-about .about-scale__chart {
  margin: 26px 0 0;
  padding: 18px 16px 10px;
  border: 1px solid rgba(245, 248, 255, 0.12);
  border-radius: 12px;
  background: var(--ink-2);
}

.page-about .about-scale__chart figcaption {
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

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

.page-about .about-scale__award {
  margin-top: 22px;
  padding: 14px 16px;
  border: 1px dashed rgba(11, 24, 52, 0.26);
  border-radius: 12px;
  font-size: 14.7px;
  line-height: 1.75;
  color: rgba(11, 24, 52, 0.84);
}

/* ---------- 下一赛季 ---------- */
.page-about .about-next {
  padding: 52px 0 72px;
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
}

.page-about .about-next__inner {
  display: grid;
  gap: 26px;
}

.page-about .about-next__copy > .lj-eyebrow {
  margin-bottom: 12px;
}

.page-about .about-next__list {
  display: grid;
  gap: 14px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-next__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15.2px;
  line-height: 1.8;
  color: var(--about-body-dark);
}

.page-about .about-next__list li::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 0;
  width: 11px;
  height: 2px;
  background: var(--orange);
}

.page-about .about-next__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-about .about-hero {
    padding-top: 44px;
  }

  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
  }

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

  .page-about .about-scale__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: 56px;
  }

  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: center;
    gap: 44px;
  }

  .page-about .about-hero__media {
    transform: rotate(-0.7deg);
  }

  .page-about .about-timeline,
  .page-about .about-team,
  .page-about .about-data {
    padding-top: 76px;
    padding-bottom: 80px;
  }

  .page-about .about-flow,
  .page-about .about-scale {
    padding-top: 76px;
    padding-bottom: 80px;
  }

  .page-about .about-next {
    padding-top: 76px;
    padding-bottom: 96px;
  }

  .page-about .about-tl__item {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 26px;
    padding: 26px 28px;
  }

  .page-about .about-tl__num {
    font-size: 36px;
  }

  .page-about .about-flow__layout {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: start;
    gap: 42px;
  }

  .page-about .about-data__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.84fr);
    align-items: center;
    gap: 44px;
  }

  .page-about .about-next__inner {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
    align-items: center;
    gap: 40px;
  }

  .page-about .about-next__cta {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero h1 {
    font-size: 56px;
  }

  .page-about .about-tl__title {
    font-size: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-tl__item,
  .page-about .about-team__card,
  .page-about .about-tl__jump a,
  .page-about .about-flow__jump a {
    transition: none;
  }

  .page-about .about-tl__item:hover,
  .page-about .about-team__card:hover {
    transform: none;
  }
}