.page-about {
  --about-rule: 1px solid var(--dj-line);
  --about-rule-soft: 1px solid var(--dj-line-soft);
  background: var(--dj-deep);
  color: var(--dj-paper);
  font-family: var(--dj-font-body);
  overflow-x: hidden;
}

/* ---- 首屏 ---- */
.page-about .about-hero {
  position: relative;
  padding: clamp(18px, 3vw, 36px) 0 clamp(34px, 5.5vw, 72px);
  background:
    radial-gradient(120% 90% at 84% 6%, rgba(61, 139, 255, 0.2), transparent 62%),
    radial-gradient(90% 70% at 6% 98%, rgba(255, 106, 26, 0.16), transparent 60%),
    linear-gradient(180deg, var(--dj-deepest), var(--dj-deep) 62%);
  border-bottom: var(--about-rule);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -46%;
  height: 62%;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(244, 247, 251, 0.06) 0 1px,
    transparent 1px 76px
  );
  transform: rotate(-4deg);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-about .about-hero__kicker {
  margin-top: 18px;
  color: var(--dj-mint);
}

.page-about .about-hero__title {
  margin: 12px 0 0;
  font-family: var(--dj-font-display);
  font-size: clamp(2.3rem, 6vw, 4.6rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--dj-paper);
  max-width: 16em;
}

.page-about .about-hero__deck {
  margin: 20px 0 0;
  max-width: 48ch;
  font-size: clamp(0.98rem, 1.1vw, 1.1rem);
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.82);
}

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

.page-about .about-hero__figure {
  margin: 0;
  padding: 8px;
  background: var(--dj-panel);
  border: var(--about-rule);
  box-shadow: var(--dj-shadow);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  border-radius: var(--dj-radius);
}

.page-about .about-hero__figure figcaption {
  padding: 10px 4px 2px;
  font-family: var(--dj-font-mono);
  font-size: var(--dj-idx);
  letter-spacing: 0.04em;
  color: var(--dj-mist);
}

/* ---- 概况数字条 ---- */
.page-about .about-stats {
  background: var(--dj-panel);
  border-bottom: var(--about-rule);
}

.page-about .about-stats__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--dj-line-soft);
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 16px;
  background: var(--dj-panel);
}

.page-about .about-stat__num {
  font-family: var(--dj-font-mono);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--dj-orange);
  font-variant-numeric: tabular-nums;
}

.page-about .about-stat__unit {
  font-size: 0.5em;
  margin-left: 2px;
}

.page-about .about-stat__label {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--dj-mist);
}

/* ---- 章节索引 ---- */
.page-about .about-spy {
  background: rgba(6, 24, 38, 0.96);
  border-bottom: var(--about-rule);
}

.page-about .about-spy__inner {
  display: flex;
  gap: 6px;
  padding-top: 12px;
  padding-bottom: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-spy__inner::-webkit-scrollbar {
  display: none;
}

.page-about .about-spy .dj-spy__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 8px 14px;
  border: var(--about-rule-soft);
  border-radius: var(--dj-radius);
  color: var(--dj-mist);
  text-decoration: none;
  font-size: 0.8125rem;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-about .about-spy__idx {
  font-family: var(--dj-font-mono);
  font-size: var(--dj-idx);
  color: var(--dj-blue);
}

.page-about .about-spy .dj-spy__link:hover,
.page-about .about-spy .dj-spy__link:focus-visible,
.page-about .about-spy .dj-spy__link[data-active] {
  color: var(--dj-paper);
  border-color: rgba(46, 242, 200, 0.5);
  background: var(--dj-mint-soft);
}

/* ---- 通用章节 ---- */
.page-about .about-section {
  padding: var(--dj-section-pad) 0;
  border-bottom: var(--about-rule-soft);
}

.page-about .about-section__head {
  max-width: 64ch;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-about .dj-section-title {
  margin: 10px 0 0;
}

.page-about .about-section__intro {
  margin: 16px 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.76);
}

/* ---- 时间线 ---- */
.page-about .about-tl {
  position: relative;
  display: grid;
  gap: 12px;
  padding-left: 26px;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(
    180deg,
    var(--dj-orange),
    rgba(46, 242, 200, 0.6) 48%,
    rgba(244, 247, 251, 0.1)
  );
}

.page-about .about-node {
  position: relative;
  border: var(--about-rule);
  border-radius: var(--dj-radius);
  background: var(--dj-panel);
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-about .about-node::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 24px;
  width: 11px;
  height: 11px;
  background: var(--dj-deep);
  border: 1px solid var(--dj-orange);
  transform: rotate(45deg);
}

.page-about .about-node[open] {
  border-color: rgba(255, 106, 26, 0.45);
  background: var(--dj-panel-soft);
}

.page-about .about-node__sum {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-node__sum:focus-visible {
  outline: 2px solid var(--dj-mint);
  outline-offset: 2px;
}

.page-about .about-node__idx {
  font-family: var(--dj-font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dj-orange);
  font-variant-numeric: tabular-nums;
}

.page-about .about-node__head {
  display: block;
  min-width: 0;
}

.page-about .about-node__stage {
  display: block;
  font-family: var(--dj-font-mono);
  font-size: var(--dj-idx);
  letter-spacing: 0.06em;
  color: var(--dj-mist);
}

.page-about .about-node__title {
  margin: 4px 0 0;
  font-family: var(--dj-font-display);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--dj-paper);
}

.page-about .about-node__sum::after {
  content: "+";
  font-family: var(--dj-font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--dj-mint);
}

.page-about .about-node[open] > .about-node__sum::after {
  content: "–";
  color: var(--dj-orange);
}

.page-about .about-node__body {
  padding: 14px 16px 18px;
  border-top: var(--about-rule-soft);
}

.page-about .about-node__body p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(244, 247, 251, 0.78);
}

/* ---- 数据链路 ---- */
.page-about .about-pipeline-section {
  background: linear-gradient(180deg, rgba(11, 42, 69, 0.55), transparent 70%);
}

.page-about .about-pipeline {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .about-pipeline__lead {
  margin: 16px 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.76);
}

.page-about .about-flow {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-flow > li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 2px 12px;
  padding: 16px 18px;
  border: var(--about-rule);
  border-left: 3px solid var(--dj-blue);
  border-radius: var(--dj-radius);
  background: linear-gradient(90deg, rgba(61, 139, 255, 0.12), transparent 58%), var(--dj-panel);
}

.page-about .about-flow > li:nth-child(2) {
  border-left-color: var(--dj-violet);
  background: linear-gradient(90deg, rgba(123, 97, 255, 0.14), transparent 58%), var(--dj-panel);
}

.page-about .about-flow > li:nth-child(3) {
  border-left-color: var(--dj-mint);
  background: linear-gradient(90deg, rgba(46, 242, 200, 0.12), transparent 58%), var(--dj-panel);
}

.page-about .about-flow__idx {
  grid-row: 1 / span 2;
  font-family: var(--dj-font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--dj-blue);
}

.page-about .about-flow > li:nth-child(2) .about-flow__idx {
  color: var(--dj-violet);
}

.page-about .about-flow > li:nth-child(3) .about-flow__idx {
  color: var(--dj-mint);
}

.page-about .about-flow h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--dj-paper);
}

.page-about .about-flow p {
  grid-column: 2;
  margin: 6px 0 0;
  font-size: 0.9063rem;
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.76);
}

.page-about .about-pipeline__note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--dj-orange);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--dj-mist);
}

.page-about .about-pipeline__figure {
  margin: 0;
  padding: 8px;
  background: var(--dj-panel);
  border: var(--about-rule);
}

.page-about .about-pipeline__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--dj-radius);
}

.page-about .about-pipeline__figure figcaption {
  padding: 10px 4px 2px;
  font-family: var(--dj-font-mono);
  font-size: var(--dj-idx);
  letter-spacing: 0.04em;
  color: var(--dj-mist);
}

/* ---- 团队 ---- */
.page-about .about-team {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-about .about-bar {
  margin-bottom: 16px;
}

.page-about .about-bar__head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 7px;
  font-size: 0.875rem;
  color: var(--dj-paper);
}

.page-about .about-bar__head span:last-child {
  font-family: var(--dj-font-mono);
  font-size: var(--dj-idx);
  letter-spacing: 0.04em;
  color: var(--dj-mist);
  text-align: right;
}

.page-about .about-bar__track {
  height: 8px;
  border-radius: 999px;
  background: rgba(244, 247, 251, 0.1);
  overflow: hidden;
}

.page-about .about-bar__fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--dj-orange);
}

.page-about .about-bar:nth-child(1) .about-bar__fill {
  width: 41%;
  background: var(--dj-orange);
}

.page-about .about-bar:nth-child(2) .about-bar__fill {
  width: 26%;
  background: var(--dj-blue);
}

.page-about .about-bar:nth-child(3) .about-bar__fill {
  width: 19%;
  background: var(--dj-violet);
}

.page-about .about-bar:nth-child(4) .about-bar__fill {
  width: 14%;
  background: var(--dj-mint);
}

.page-about .about-team__note {
  margin: 22px 0 0;
  padding: 14px 16px;
  border: var(--about-rule-soft);
  border-radius: var(--dj-radius);
  font-size: 0.875rem;
  line-height: 1.75;
  color: rgba(244, 247, 251, 0.74);
  background: rgba(244, 247, 251, 0.03);
}

.page-about .about-team__figure {
  margin: 0;
  padding: 8px;
  background: var(--dj-panel);
  border: var(--about-rule);
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--dj-radius);
}

.page-about .about-team__figure figcaption {
  padding: 10px 4px 2px;
  font-family: var(--dj-font-mono);
  font-size: var(--dj-idx);
  letter-spacing: 0.04em;
  color: var(--dj-mist);
}

/* ---- 合作生态 ---- */
.page-about .about-partners {
  display: grid;
  gap: 20px;
}

.page-about .about-partner-group {
  padding: 18px 18px 20px;
  border: var(--about-rule);
  border-top: 2px solid var(--dj-blue);
  border-radius: var(--dj-radius);
  background: var(--dj-panel);
}

.page-about .about-partner-group:nth-child(2) {
  border-top-color: var(--dj-violet);
}

.page-about .about-partner-group:nth-child(3) {
  border-top-color: var(--dj-mint);
}

.page-about .about-partner-group__head {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 0.9375rem;
  color: var(--dj-paper);
}

.page-about .about-partner-group__num {
  font-family: var(--dj-font-mono);
  font-size: clamp(1.6rem, 3.4vw, 2.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--dj-orange);
  font-variant-numeric: tabular-nums;
}

.page-about .about-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-cloud li {
  padding: 5px 10px;
  border: var(--about-rule-soft);
  border-radius: var(--dj-radius);
  background: rgba(244, 247, 251, 0.04);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: rgba(244, 247, 251, 0.8);
}

.page-about .about-partners__foot {
  margin: 22px 0 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--dj-mist);
}

/* ---- 服务原则 ---- */
.page-about .about-principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-principles > li {
  padding: 20px 20px 22px;
  border-radius: var(--dj-radius);
  border-left: 3px solid var(--dj-orange);
  background: var(--dj-paper);
  color: var(--dj-ink);
}

.page-about .about-principles h3 {
  margin: 0;
  font-family: var(--dj-font-display);
  font-size: clamp(1.0625rem, 1.8vw, 1.25rem);
  font-weight: 700;
  color: #0a1b29;
}

.page-about .about-principles p {
  margin: 8px 0 0;
  font-size: 0.9063rem;
  line-height: 1.8;
  color: rgba(8, 21, 31, 0.74);
}

/* ---- 收尾入口 ---- */
.page-about .about-cta {
  padding: var(--dj-section-pad) 0;
  background:
    radial-gradient(90% 130% at 12% 0%, rgba(255, 106, 26, 0.18), transparent 62%),
    radial-gradient(70% 110% at 96% 100%, rgba(46, 242, 200, 0.12), transparent 60%),
    var(--dj-panel);
  border-top: 1px solid rgba(46, 242, 200, 0.22);
}

.page-about .about-cta__title {
  margin: 0;
  font-family: var(--dj-font-display);
  font-size: clamp(1.6rem, 3.2vw, 2.3rem);
  font-weight: 800;
  color: var(--dj-paper);
}

.page-about .about-cta__grid {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.page-about .about-cta__grid a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  border: var(--about-rule);
  border-radius: var(--dj-radius);
  background: rgba(6, 24, 38, 0.66);
  color: var(--dj-paper);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: border-color 0.18s ease, background-color 0.18s ease, transform 0.18s ease;
}

.page-about .about-cta__grid a::after {
  content: "→";
  font-family: var(--dj-font-mono);
  color: var(--dj-mint);
}

.page-about .about-cta__grid a:hover,
.page-about .about-cta__grid a:focus-visible {
  border-color: rgba(46, 242, 200, 0.6);
  background: rgba(46, 242, 200, 0.08);
  transform: translateY(-2px);
}

/* ---- 响应式 ---- */
@media (min-width: 640px) {
  .page-about .about-stat {
    padding: 24px 22px;
  }

  .page-about .about-node__sum {
    grid-template-columns: 54px minmax(0, 1fr) auto;
    padding: 18px 20px;
  }

  .page-about .about-node__body {
    padding: 16px 20px 20px;
  }
}

@media (min-width: 860px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

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

  .page-about .about-node__body {
    padding-left: 74px;
  }

  .page-about .about-pipeline {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  }

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

  .page-about .about-principles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 1080px) {
  .page-about .about-pipeline__figure {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-spy .dj-spy__link,
  .page-about .about-node,
  .page-about .about-cta__grid a {
    transition: none;
  }

  .page-about .about-cta__grid a:hover,
  .page-about .about-cta__grid a:focus-visible {
    transform: none;
  }
}
<<<END>>>