.page-about {
  --about-edge: rgba(51, 32, 96, 0.9);
  --about-glow: rgba(47, 243, 214, 0.32);
  background: var(--jx-void);
  color: var(--jx-star);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(18px, 3vw, 36px) 0 clamp(46px, 8vw, 96px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -12% 0 26% 42%;
  background: radial-gradient(closest-side, rgba(122, 85, 232, 0.38), transparent 72%);
  filter: blur(12px);
  z-index: -1;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(51, 32, 96, 0.32) 1px, transparent 1px),
    linear-gradient(90deg, rgba(51, 32, 96, 0.32) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(58% 62% at 72% 18%, #000 0%, transparent 78%);
  mask-image: radial-gradient(58% 62% at 72% 18%, #000 0%, transparent 78%);
  opacity: 0.55;
  z-index: -1;
  pointer-events: none;
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(30px, 6vw, 62px);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--jx-font-display);
  font-weight: 900;
  font-size: clamp(38px, 8.6vw, 92px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--jx-star);
}

.page-about .about-hero__title em {
  display: block;
  font-style: normal;
  color: var(--jx-neon);
  text-shadow: 0 0 38px rgba(47, 243, 214, 0.42);
}

.page-about .about-hero__lead {
  margin-top: clamp(16px, 3vw, 28px);
  max-width: 62ch;
}

.page-about .about-hero__aside {
  display: grid;
  gap: 18px;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--jx-edge);
  border-radius: var(--jx-radius);
  background: linear-gradient(158deg, rgba(30, 18, 64, 0.96), rgba(20, 11, 41, 0.72));
  box-shadow: inset 0 1px 0 rgba(237, 233, 255, 0.06);
}

.page-about .about-hero__stat {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero__num {
  font-family: var(--jx-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(44px, 7.4vw, 68px);
  line-height: 1;
  color: var(--jx-neon);
  text-shadow: 0 0 30px var(--about-glow);
}

.page-about .about-hero__unit {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--jx-dusk);
}

.page-about .about-hero__meta {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid var(--jx-edge);
}

.page-about .about-hero__meta dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--jx-dusk);
}

.page-about .about-hero__meta dd {
  margin: 5px 0 0;
  font-family: var(--jx-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  color: var(--jx-gold);
}

/* ---------- 平台是谁 ---------- */
.page-about .about-who__grid {
  align-items: start;
}

.page-about .about-facts {
  display: grid;
  gap: 14px;
}

.page-about .about-facts__item {
  display: grid;
  gap: 5px;
  padding: 18px 20px;
  border: 1px solid var(--jx-edge);
  border-left: 3px solid var(--jx-crown);
  border-radius: var(--jx-radius-sm);
  background: var(--jx-panel);
  transition: border-color 0.28s ease, transform 0.28s ease;
}

.page-about .about-facts__item:hover {
  border-left-color: var(--jx-neon);
  transform: translateX(5px);
}

.page-about .about-facts__label {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--jx-dusk);
}

.page-about .about-facts__value {
  font-family: var(--jx-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3vw, 30px);
  color: var(--jx-star);
}

.page-about .about-facts__note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--jx-dusk);
}

/* ---------- 十二大类表格 ---------- */
.page-about .about-cats__scroll {
  margin-top: clamp(22px, 4vw, 36px);
  overflow-x: auto;
  border: 1px solid var(--jx-edge);
  border-radius: var(--jx-radius);
  background: var(--jx-panel);
  -webkit-overflow-scrolling: touch;
}

.page-about .about-cats__table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-about .about-cats__table caption {
  padding: 18px 20px 14px;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--jx-dusk);
}

.page-about .about-cats__table th,
.page-about .about-cats__table td {
  padding: 14px 20px;
  text-align: left;
  border-top: 1px solid var(--jx-edge);
  vertical-align: top;
}

.page-about .about-cats__table thead th {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--jx-dusk);
  background: rgba(122, 85, 232, 0.12);
}

.page-about .about-cats__row {
  transition: background 0.26s ease;
}

.page-about .about-cats__row:hover {
  background: rgba(122, 85, 232, 0.16);
}

.page-about .about-cats__row th[scope="row"] {
  font-weight: 600;
  color: var(--jx-star);
  white-space: nowrap;
  transition: color 0.26s ease, box-shadow 0.26s ease;
}

.page-about .about-cats__row:hover th[scope="row"] {
  color: var(--jx-neon);
  box-shadow: inset 3px 0 0 var(--jx-neon);
}

.page-about .about-cats__num {
  font-family: var(--jx-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  color: var(--jx-gold);
  white-space: nowrap;
}

.page-about .about-cats__desc {
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--jx-dusk);
}

.page-about .about-cats__foot {
  margin: clamp(18px, 3vw, 26px) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--jx-dusk);
}

.page-about .about-cats__foot a,
.page-about .about-node__link a {
  color: var(--jx-neon);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about .about-cats__foot a:hover,
.page-about .about-node__link a:hover {
  color: var(--jx-star);
}

/* ---------- 发展节点 ---------- */
.page-about .about-flow__media {
  margin: 0 0 clamp(26px, 4vw, 46px);
}

.page-about .about-track {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .about-rings {
  display: block;
  width: min(210px, 58vw);
  height: auto;
  margin: 0 auto 18px;
}

.page-about .about-rings__spin {
  transform-origin: 120px 120px;
  animation: aboutSpin 80s linear infinite;
}

@keyframes aboutSpin {
  to {
    transform: rotate(360deg);
  }
}

.page-about .about-stage-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.page-about .about-stage-nav a {
  padding: 8px 14px;
  border: 1px solid var(--jx-edge);
  border-radius: 999px;
  font-family: var(--jx-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--jx-dusk);
  text-decoration: none;
  transition: border-color 0.24s ease, color 0.24s ease, background 0.24s ease;
}

.page-about .about-stage-nav a:hover,
.page-about .about-stage-nav a:focus-visible {
  border-color: var(--jx-neon);
  color: var(--jx-neon);
  background: rgba(47, 243, 214, 0.08);
}

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

.page-about .about-line__item {
  display: grid;
  gap: 10px 26px;
  padding: clamp(20px, 3vw, 30px) 0;
  border-top: 1px solid var(--jx-edge);
  scroll-margin-top: calc(var(--jx-header-h) + 24px);
  transition: background 0.3s ease;
}

.page-about .about-line__item:last-child {
  border-bottom: 1px solid var(--jx-edge);
}

.page-about .about-line__item:hover {
  background: linear-gradient(90deg, rgba(47, 243, 214, 0.08), transparent 62%);
}

.page-about .about-line__phase {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-about .about-line__year {
  font-family: var(--jx-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3.4vw, 32px);
  line-height: 1;
  color: var(--jx-neon);
}

.page-about .about-line__tag {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--jx-dusk);
}

.page-about .about-line__title {
  margin: 0 0 8px;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--jx-star);
}

.page-about .about-line__body p {
  margin: 0 0 8px;
  color: var(--jx-dusk);
  line-height: 1.78;
}

.page-about .about-line__body p.about-line__meta {
  margin-bottom: 0;
  font-size: 13px;
  color: rgba(180, 155, 255, 0.78);
}

.page-about .about-line__body p.about-line__meta a {
  color: var(--jx-neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-team__media {
  margin: 0;
  aspect-ratio: 3 / 2;
}

.page-about .about-team__body {
  display: grid;
  gap: 22px;
}

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

.page-about .about-roles__item {
  padding: 16px 18px;
  border: 1px solid var(--jx-edge);
  border-radius: var(--jx-radius-sm);
  background: rgba(30, 18, 64, 0.62);
  transition: border-color 0.26s ease, background 0.26s ease;
}

.page-about .about-roles__item:hover {
  border-color: rgba(47, 243, 214, 0.55);
  background: rgba(30, 18, 64, 0.92);
}

.page-about .about-roles__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-about .about-roles__name {
  font-size: 16px;
  font-weight: 600;
  color: var(--jx-star);
}

.page-about .about-roles__count {
  font-family: var(--jx-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  color: var(--jx-gold);
  white-space: nowrap;
}

.page-about .about-roles__bar {
  display: block;
  height: 6px;
  margin: 10px 0 10px;
  border-radius: 999px;
  background: rgba(122, 85, 232, 0.22);
  overflow: hidden;
}

.page-about .about-roles__fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--jx-crown), var(--jx-neon));
  transition: filter 0.26s ease;
}

.page-about .about-roles__fill--tech {
  width: 39.5%;
}

.page-about .about-roles__fill--design {
  width: 24.4%;
}

.page-about .about-roles__fill--ops {
  width: 22.1%;
}

.page-about .about-roles__fill--content {
  width: 14%;
}

.page-about .about-roles__item:hover .about-roles__fill {
  filter: brightness(1.3);
}

.page-about .about-roles__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--jx-dusk);
}

/* ---------- 服务节点 ---------- */
.page-about .about-node__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-node__body p {
  color: var(--jx-dusk);
  line-height: 1.82;
}

.page-about .about-node__media {
  margin: 0;
  aspect-ratio: 3 / 2;
}

.page-about .about-node__facets {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* ---------- 合作 ---------- */
.page-about .about-partner__panel {
  display: grid;
  gap: 24px;
  padding: clamp(24px, 5vw, 54px);
  border: 1px solid var(--jx-edge);
  border-radius: var(--jx-radius);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(47, 243, 214, 0.16), transparent 62%),
    linear-gradient(152deg, var(--jx-night), var(--jx-panel));
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-about .about-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 780px) {
  .page-about .about-line__item {
    grid-template-columns: minmax(140px, 190px) minmax(0, 1fr);
  }

  .page-about .about-line__phase::before {
    content: "";
    position: absolute;
    left: -16px;
    top: 10px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--jx-neon);
    box-shadow: 0 0 14px rgba(47, 243, 214, 0.85);
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-about .about-hero__aside {
    transform: translateY(26px);
  }

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

  .page-about .about-track__aside {
    position: sticky;
    top: calc(var(--jx-header-h) + 30px);
  }

  .page-about .about-stage-nav {
    justify-content: flex-start;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-about .about-node__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-about .about-partner__panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-rings__spin {
    animation: none;
  }

  .page-about .about-facts__item,
  .page-about .about-cats__row,
  .page-about .about-roles__item,
  .page-about .about-line__item {
    transition: none;
  }
}