.page-about {
  --about-gap: clamp(20px, 3vw, 40px);
  --about-num-size: clamp(34px, 6vw, 64px);
  background: var(--ink);
  color: var(--cream);
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  padding: 96px var(--gutter) 0;
}
.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: var(--shell);
  margin-inline: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mist);
}
.page-about .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}
.page-about .breadcrumb-link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.page-about .breadcrumb-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--line-strong);
}
.page-about .breadcrumb-link[aria-current="page"] {
  color: var(--cream);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: clamp(24px, 4vw, 44px) 0 clamp(48px, 7vw, 96px);
  background:
    radial-gradient(1100px 480px at 78% -12%, rgba(34, 224, 200, 0.16), transparent 70%),
    radial-gradient(760px 420px at 6% 8%, rgba(255, 107, 44, 0.10), transparent 72%),
    var(--ink);
}
.page-about .about-hero-grid {
  display: grid;
  gap: var(--about-gap);
}
.page-about .about-hero-copy .index-label {
  display: block;
  margin-bottom: 18px;
}
.page-about .about-hero-copy .display-title {
  margin: 0 0 20px;
  font-size: clamp(30px, 6.4vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  text-wrap: balance;
}
.page-about .about-hero-copy .lead {
  margin: 0 0 26px;
  max-width: 62ch;
  color: var(--mist);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}
.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-hero-media {
  margin: 0;
}
.page-about .about-hero-media img {
  border-radius: var(--radius);
}

/* ---------- 通用图框微调 ---------- */
.page-about .media-frame {
  border-radius: var(--radius);
  overflow: hidden;
}
.page-about .figure-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 量级 ---------- */
.page-about .about-scale-notes {
  margin-top: clamp(24px, 4vw, 44px);
}
.page-about .about-scale-notes .note {
  margin: 0;
  color: var(--mist);
  line-height: 1.85;
  border-left: 1px solid var(--line);
  padding-left: 18px;
}

/* ---------- 数据链路 ---------- */
.page-about .about-pipeline {
  align-items: start;
}
.page-about .about-pipeline-media {
  display: grid;
  gap: 18px;
}
.page-about .about-pipeline-media .media-frame {
  margin: 0;
}
.page-about .about-pipeline-badge {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  background: var(--ink-panel);
  border-left: 2px solid var(--orange);
  border-radius: var(--radius);
}
.page-about .about-pipeline-badge .stat-value {
  font-family: var(--font-mono);
  font-size: 40px;
  line-height: 1;
  font-weight: 700;
  color: var(--orange);
}
.page-about .about-pipeline-badge .stat-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.page-about .segmented {
  background: var(--ink-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 18px;
}
.page-about .segmented-list {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
  margin-bottom: 20px;
  overflow-x: auto;
}
.page-about .segmented-tab {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  padding: 8px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
  transition: color 160ms var(--ease), background-color 160ms var(--ease), border-color 160ms var(--ease);
}
.page-about .segmented-tab:hover {
  color: var(--cream);
  border-color: var(--line);
}
.page-about .segmented-tab[aria-selected="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}
.page-about .segmented-tab:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}
.page-about .segmented-panel {
  animation: about-fade 260ms var(--ease) both;
}
.page-about .segmented-panel .panel-title {
  margin: 0 0 12px;
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--cream);
}
.page-about .segmented-panel p {
  margin: 0 0 16px;
  color: var(--mist);
  line-height: 1.85;
  max-width: 62ch;
}
@keyframes about-fade {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.page-about .about-bullets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-about .about-bullets li {
  position: relative;
  padding-left: 20px;
  color: var(--cream);
  font-size: 14.5px;
  line-height: 1.75;
}
.page-about .about-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 版本时间线 ---------- */
.page-about .tag-row {
  margin-top: 14px;
}
.page-about .chip {
  text-decoration: none;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.page-about .chip:hover {
  color: var(--cyan);
  border-color: var(--line-strong);
}

.page-about .timeline {
  list-style: none;
  margin: clamp(28px, 5vw, 52px) 0 0;
  padding: 0 0 0 30px;
  position: relative;
}
.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, rgba(34, 224, 200, 0.55), rgba(255, 107, 44, 0.45), rgba(34, 224, 200, 0.06));
}
.page-about .t-node {
  position: relative;
  margin: 0 0 clamp(34px, 5vw, 56px);
}
.page-about .t-node:last-child {
  margin-bottom: 0;
}
.page-about .t-node::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--cyan);
  z-index: 1;
}
.page-about .t-node--current::before {
  background: var(--orange);
  border-color: var(--orange);
  box-shadow: 0 0 0 5px rgba(255, 107, 44, 0.16);
}
.page-about .t-body {
  background: var(--ink-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 28px);
}
.page-about .t-node--current .t-body {
  border-color: rgba(255, 107, 44, 0.36);
  background: linear-gradient(150deg, rgba(255, 107, 44, 0.09), var(--ink-panel) 62%);
}
.page-about .t-year {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: rgba(34, 224, 200, 0.28);
}
.page-about .t-node--current .t-year {
  color: rgba(255, 107, 44, 0.55);
}
.page-about .t-title {
  margin: 0 0 12px;
  font-size: clamp(17px, 2.3vw, 22px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--cream);
}
.page-about .t-text {
  margin: 0 0 14px;
  color: var(--mist);
  line-height: 1.85;
  font-size: 15px;
}
.page-about .t-text:last-child {
  margin-bottom: 0;
}
.page-about .t-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}
.page-about .t-metrics span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.page-about .t-metrics b {
  display: block;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--cyan);
  font-weight: 700;
}
.page-about .t-node--current .t-metrics b {
  color: var(--orange);
}
.page-about .t-media {
  margin: 18px 0 0;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  align-items: start;
}
.page-about .team-bars {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}
.page-about .team-row {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "label num"
    "track track"
    "note note";
  align-items: center;
  gap: 10px 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}
.page-about .team-row-label {
  grid-area: label;
  font-size: 15px;
  font-weight: 600;
  color: var(--cream);
}
.page-about .team-row-num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1;
  font-weight: 700;
  color: var(--cyan);
}
.page-about .team-row-track {
  grid-area: track;
  display: block;
  height: 6px;
  background: var(--ink-deep);
  border-radius: 999px;
  overflow: hidden;
}
.page-about .team-row-fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--heat), var(--cyan));
  border-radius: 999px;
  transition: filter 160ms var(--ease);
}
.page-about .team-row-fill--accent {
  background: linear-gradient(90deg, var(--amber), var(--orange));
}
.page-about .team-row-note {
  grid-area: note;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  opacity: 0.72;
  transition: opacity 160ms var(--ease), transform 160ms var(--ease);
}
.page-about .team-row:hover .team-row-note,
.page-about .team-row:focus-within .team-row-note {
  opacity: 1;
  transform: translateY(-2px);
}
.page-about .team-row:hover .team-row-num {
  color: var(--orange);
}

.page-about .about-team-side {
  display: grid;
  gap: 12px;
  align-content: start;
}
.page-about .about-team-side .fold {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--ink-panel);
  overflow: hidden;
}
.page-about .about-team-side summary {
  cursor: pointer;
  padding: 14px 16px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--cream);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}
.page-about .about-team-side summary::-webkit-details-marker {
  display: none;
}
.page-about .about-team-side summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
  line-height: 1;
}
.page-about .about-team-side details[open] summary::after {
  content: "–";
  color: var(--orange);
}
.page-about .about-team-side summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}
.page-about .fold-body {
  padding: 0 16px 16px;
}
.page-about .fold-body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 协作生态 ---------- */
.page-about .eco-grid {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-about .eco-cell {
  background: var(--ink-panel);
  padding: clamp(20px, 3vw, 30px);
}
.page-about .eco-num {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: var(--about-num-size);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--cyan);
}
.page-about .eco-title {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--cream);
}
.page-about .eco-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}
.page-about .about-eco-tags {
  margin-top: clamp(22px, 3.5vw, 34px);
}

/* ---------- 承诺 ---------- */
.page-about .data-list {
  border-top: 1px solid var(--line);
}
.page-about .data-list .data-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
  transition: background-color 160ms var(--ease);
}
.page-about .data-list .data-row:hover {
  background: rgba(34, 224, 200, 0.04);
}
.page-about .data-row-key {
  font-size: 15px;
  font-weight: 700;
  color: var(--cream);
}
.page-about .data-row-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}
.page-about .data-row-value {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange);
  font-weight: 700;
}

.page-about .about-cta {
  margin-top: clamp(30px, 5vw, 52px);
  padding: clamp(22px, 3.5vw, 34px);
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  border-radius: var(--radius);
  background:
    radial-gradient(560px 260px at 88% 0%, rgba(34, 224, 200, 0.12), transparent 70%),
    var(--ink-panel);
}
.page-about .about-cta-text {
  margin: 0 0 20px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .eco-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .data-list .data-row {
    grid-template-columns: minmax(140px, 0.9fr) minmax(0, 2.4fr) auto;
    align-items: baseline;
    gap: 22px;
    padding: 20px 6px;
  }
  .page-about .data-row-value {
    text-align: right;
    white-space: nowrap;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-about .timeline {
    padding-left: 0;
  }
  .page-about .timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }
  .page-about .t-node {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 72px;
    margin-bottom: clamp(44px, 6vw, 72px);
  }
  .page-about .t-node::before {
    left: 50%;
    transform: translateX(-50%);
    top: 14px;
  }
  .page-about .t-node:nth-child(odd) .t-body {
    grid-column: 1;
  }
  .page-about .t-node:nth-child(even) .t-body {
    grid-column: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .segmented-panel {
    animation: none;
  }
  .page-about .team-row-note,
  .page-about .team-row-fill,
  .page-about .breadcrumb-link {
    transition: none;
  }
  .page-about .team-row:hover .team-row-note,
  .page-about .team-row:focus-within .team-row-note {
    transform: none;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</result>