.page-about {
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-about .about-hero {
  position: relative;
  padding: 40px 0 64px;
  background:
    radial-gradient(120% 90% at 86% 6%, rgba(108, 74, 182, 0.24), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-about .about-hero-main h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(32px, 5.6vw, 58px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 14px 0 22px;
  color: var(--paper);
}

.page-about .about-hero-main h1 em {
  font-style: normal;
  color: var(--gold);
  display: block;
}

.page-about .about-lede {
  font-size: 17px;
  line-height: 1.85;
  color: var(--sand);
  max-width: 36em;
  margin: 0;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero-meta {
  list-style: none;
  margin: 30px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 16px 30px;
}

.page-about .about-hero-meta li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 96px;
}

.page-about .meta-k {
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-about .meta-v {
  font-size: 13px;
  color: var(--sand);
}

.page-about .about-hero-figure {
  justify-self: center;
  width: min(100%, 460px);
}

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

.page-about .orb-ring {
  transform-origin: 220px 220px;
  animation: pa-drift 46s linear infinite;
}

@keyframes pa-drift {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ---------- 章节通用头部 ---------- */

.page-about .about-sec-head {
  max-width: 44em;
  margin-bottom: 40px;
}

.page-about .about-sec-head h2,
.page-about .about-team h2,
.page-about .about-review h2,
.page-about .about-reach h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  margin: 10px 0 16px;
  color: var(--paper);
}

.page-about .about-sec-lede {
  font-size: 16px;
  line-height: 1.85;
  color: var(--sand);
  margin: 0;
}

/* ---------- 时间轴 ---------- */

.page-about .about-timeline {
  background: linear-gradient(180deg, var(--ink-deep) 0%, var(--ink) 30%);
  border-bottom: 1px solid var(--line);
}

.page-about .about-map {
  margin: 0 0 48px;
}

.page-about .about-map .media {
  overflow: hidden;
  border: 1px solid var(--line-nebula);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

.page-about .about-map img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 14 / 6;
}

.page-about .media-caption {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sand);
}

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

.page-about .about-node {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 0 0 44px 28px;
}

.page-about .about-node-year {
  position: relative;
  font-size: 16px;
  letter-spacing: 0.08em;
  color: var(--gold);
  padding-left: 26px;
  line-height: 1.4;
}

.page-about .about-node-year::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(245, 193, 108, 0.14);
}

.page-about .about-node-year::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 24px;
  bottom: -34px;
  width: 1px;
  background: linear-gradient(180deg, rgba(108, 74, 182, 0.8), rgba(108, 74, 182, 0.08));
}

.page-about .about-node:last-child .about-node-year::after {
  display: none;
}

.page-about .about-node-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 21px;
  line-height: 1.4;
  margin: 0 0 10px;
  color: var(--paper);
}

.page-about .about-node-body p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--sand);
  margin: 0 0 12px;
}

.page-about .expand-toggle {
  display: inline-block;
  margin-top: 4px;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--line-nebula);
  border-radius: var(--radius);
  color: var(--pulse);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: border-color 180ms ease, color 180ms ease;
}

.page-about .expand-toggle:hover,
.page-about .expand-toggle:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
  outline: 2px solid var(--pulse);
  outline-offset: 2px;
}

.page-about .expand-panel {
  margin-top: 14px;
  padding: 14px 16px;
  background: var(--rock);
  border-left: 2px solid var(--pulse);
  border-radius: var(--radius);
}

.page-about .expand-panel p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--sand);
  margin: 0 0 8px;
}

.page-about .expand-panel p:last-child {
  margin-bottom: 0;
}

.page-about .node-note {
  color: var(--gold) !important;
  font-size: 13px !important;
  letter-spacing: 0.04em;
  margin-top: 6px !important;
}

.page-about .note-col {
  border-left: 1px solid var(--line);
  padding-left: 16px;
}

.page-about .note-col p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--sand);
  margin: 8px 0 0;
}

/* ---------- 团队 ---------- */

.page-about .about-team {
  background: var(--ink);
}

.page-about .about-team-cards {
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

.page-about .about-team-card {
  padding: 22px 20px;
  background: var(--rock);
  border: 1px solid var(--line-nebula);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 200ms ease, border-color 200ms ease;
}

.page-about .about-team-card:hover,
.page-about .about-team-card:focus-within {
  border-color: var(--pulse);
  transform: translateY(-2px);
}

.page-about .about-team-card h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  margin: 8px 0 10px;
  color: var(--paper);
}

.page-about .about-team-card p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--sand);
  margin: 0 0 12px;
}

.page-about .about-team-card .card-foot {
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 0.04em;
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.page-about .about-team-aside .media {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-about .about-team-aside img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 4;
}

.page-about .about-team-tip {
  margin-top: 24px;
  padding: 18px 16px;
  background: var(--ink-deep);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

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

.page-about .about-flow li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 14px;
  color: var(--paper);
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--line);
}

.page-about .about-flow li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-flow .mono {
  color: var(--pulse);
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* ---------- 命名规范版本 ---------- */

.page-about .about-version {
  background: var(--ink-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-versions {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  padding-bottom: 14px;
  border-top: 1px solid var(--line);
}

.page-about .about-versions::-webkit-scrollbar {
  height: 6px;
}

.page-about .about-versions::-webkit-scrollbar-track {
  background: var(--rock);
}

.page-about .about-versions::-webkit-scrollbar-thumb {
  background: var(--nebula);
  border-radius: 3px;
}

.page-about .about-ver {
  flex: 0 0 78%;
  scroll-snap-align: start;
  padding: 26px 22px 24px;
  border-right: 1px solid var(--line);
  background: transparent;
  transition: background 200ms ease;
}

.page-about .about-ver:last-child {
  border-right: 0;
}

.page-about .about-ver:hover {
  background: rgba(108, 74, 182, 0.10);
}

.page-about .about-ver h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 19px;
  margin: 10px 0 10px;
  color: var(--paper);
}

.page-about .about-ver p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--sand);
  margin: 0 0 14px;
}

.page-about .about-ver-sample {
  display: block;
  padding: 10px 12px;
  background: var(--rock);
  border-left: 2px solid var(--gold);
  border-radius: var(--radius);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--gold);
}

/* ---------- 季度复核 ---------- */

.page-about .about-review {
  background: var(--ink);
}

.page-about .about-review-main p {
  font-size: 16px;
  line-height: 1.9;
  color: var(--sand);
  margin: 0 0 18px;
}

.page-about .about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 12px;
}

.page-about .about-tags-note {
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
}

.page-about .tag.is-outline {
  background: transparent;
  border: 1px solid var(--clay);
  color: var(--clay);
}

/* ---------- 合作生态 ---------- */

.page-about .about-partner {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
}

.page-about .about-partner-figure {
  margin: 0 0 44px;
}

.page-about .about-partner-figure .media {
  overflow: hidden;
  border: 1px solid var(--line-nebula);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-about .about-partner-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 6;
}

.page-about .about-partner-grid {
  display: grid;
  gap: 20px;
}

.page-about .about-partner-item {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(42, 51, 80, 0.4);
}

.page-about .about-partner-item h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  margin: 10px 0 10px;
  color: var(--paper);
}

.page-about .about-partner-item p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--sand);
  margin: 0;
}

/* ---------- 服务覆盖 ---------- */

.page-about .about-reach {
  background: var(--paper-warm);
  color: var(--ink);
}

.page-about .about-reach .index-label {
  color: var(--nebula);
}

.page-about .about-reach h2 {
  color: var(--ink);
}

.page-about .about-reach-panel > p {
  font-size: 16px;
  line-height: 1.9;
  color: #3D4761;
  max-width: 46em;
  margin: 0 0 26px;
}

.page-about .about-reach-list {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(11, 27, 58, 0.16);
}

.page-about .about-reach-list li {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(11, 27, 58, 0.16);
}

.page-about .reach-k {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--nebula);
}

.page-about .reach-v {
  font-size: 16px;
  line-height: 1.8;
  color: #2A3350;
}

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

.page-about .about-reach .btn-ghost {
  border-color: rgba(11, 27, 58, 0.35);
  color: var(--ink);
}

.page-about .about-next {
  margin-top: 42px;
  padding-top: 26px;
  border-top: 1px solid rgba(11, 27, 58, 0.18);
}

.page-about .about-next-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-next-list li {
  font-size: 15px;
  line-height: 1.7;
}

.page-about .about-next .link-gold {
  color: #7B4FCB;
  border-bottom: 1px solid rgba(123, 79, 203, 0.4);
}

.page-about .about-next .link-gold:hover,
.page-about .about-next .link-gold:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--gold);
}

/* ---------- 动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-about .orb-ring {
    animation: none;
  }
  .page-about .about-team-card {
    transition: none;
  }
}

/* ---------- 平板 ---------- */

@media (min-width: 720px) {
  .page-about .about-hero {
    padding: 56px 0 84px;
  }

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

  .page-about .about-team-card.is-offset {
    transform: translateY(26px);
  }

  .page-about .about-team-card.is-offset:hover {
    transform: translateY(24px);
  }

  .page-about .about-versions {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    overflow-x: visible;
  }

  .page-about .about-ver {
    flex: 1 1 auto;
  }

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

  .page-about .about-reach-list li {
    grid-template-columns: 180px minmax(0, 1fr);
    align-items: baseline;
    gap: 24px;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 980px) {
  .page-about .about-hero-grid {
    grid-template-columns: 58fr 42fr;
    gap: 56px;
  }

  .page-about .about-node {
    grid-template-columns: 132px minmax(0, 1fr) 230px;
    gap: 0 30px;
    align-items: start;
    padding: 0 0 52px 0;
  }

  .page-about .about-node-year::after {
    bottom: -28px;
  }

  .page-about .about-node-year {
    padding-left: 26px;
  }

  .page-about .about-node-body {
    padding-bottom: 8px;
  }

  .page-about .about-timeline .editorial-grid {
    grid-template-columns: 7fr 4fr 1fr;
  }

  .page-about .about-team .editorial-grid,
  .page-about .about-review .editorial-grid {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 0 40px;
  }

  .page-about .about-team-aside .media {
    margin-top: 6px;
  }

  .page-about .about-reach-panel {
    max-width: 940px;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>