.page-about {
  --about-max: 1180px;
  display: block;
  padding-bottom: var(--s7);
  overflow-wrap: break-word;
}

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-about [id] {
  scroll-margin-top: calc(var(--bar-h) + 20px);
}

.page-about .about-wrap {
  max-width: var(--about-max);
  margin-inline: auto;
  padding-inline: var(--s2);
}

.page-about .breadcrumbs {
  margin-top: var(--s3);
}

/* ---------- 首屏：左窄栏定位 + 右侧影像 ---------- */

.page-about .about-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s4);
  padding-block: var(--s3) var(--s6);
  background-image:
    radial-gradient(70% 55% at 92% 2%, rgba(53, 240, 196, 0.10), transparent 66%),
    radial-gradient(60% 45% at 0% 100%, rgba(255, 178, 77, 0.06), transparent 62%);
  background-repeat: no-repeat;
}

.page-about .about-hero__lead h1 {
  margin: var(--s2) 0 var(--s2);
  font-size: clamp(28px, 6.4vw, 44px);
  line-height: 1.25;
}

.page-about .about-hero__intro {
  margin: 0;
  max-width: 46ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.page-about .about-nav {
  list-style: none;
  margin: var(--s4) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .about-nav li {
  border-bottom: 1px solid var(--line);
}

.page-about .about-nav a {
  display: flex;
  align-items: baseline;
  gap: var(--s2);
  padding: 13px 4px;
  color: var(--text);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-about .about-nav a:hover {
  color: var(--cyan-soft);
  padding-left: 12px;
}

.page-about .about-nav a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

.page-about .about-nav .mono {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-about .about-hero__media {
  margin: 0;
}

.page-about .about-hero__media figcaption,
.page-about .pipeline-media figcaption,
.page-about .track-media figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

@media (min-width: 960px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 350px) minmax(0, 1fr);
    gap: var(--s5);
    align-items: start;
    padding-block: var(--s5) var(--s7);
  }
}

/* ---------- 章节通用 ---------- */

.page-about .about-section {
  padding-block: var(--s6);
  border-top: 1px solid var(--line);
}

.page-about .about-section .section-head {
  margin-bottom: var(--s4);
}

/* ---------- 01 三件事 ---------- */

.page-about .focus-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s3);
}

.page-about .focus-card {
  position: relative;
  overflow: hidden;
  padding: var(--s3);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
}

.page-about .focus-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), rgba(53, 240, 196, 0));
}

.page-about .focus-card__num {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-about .focus-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.4;
}

.page-about .focus-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .focus-card__list {
  list-style: none;
  margin: var(--s2) 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .focus-card__list li {
  position: relative;
  padding-left: 18px;
  color: var(--text);
  font-size: 14px;
  line-height: 1.7;
}

.page-about .focus-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

@media (min-width: 840px) {
  .page-about .focus-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .focus-card:nth-child(2) {
    margin-top: var(--s3);
  }
  .page-about .focus-card:nth-child(3) {
    margin-top: var(--s5);
  }
}

/* ---------- 02 数据流水线 ---------- */

.page-about .about-flow {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 0 var(--s4);
}

.page-about .about-flow__nodes rect {
  fill: var(--panel-2);
  stroke: var(--line);
  stroke-width: 1;
}

.page-about .about-flow__nodes text {
  fill: var(--cyan-soft);
  font-family: var(--font-body);
  font-size: 17px;
  letter-spacing: 0.04em;
  text-anchor: middle;
}

.page-about .about-flow__axis,
.page-about .about-flow__ticks line {
  stroke: var(--line);
  stroke-width: 1;
  stroke-dasharray: 2 6;
}

.page-about .about-flow__links line {
  stroke: var(--cyan);
  stroke-width: 1.5;
  stroke-dasharray: 4 6;
}

.page-about .pipeline-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s4);
}

.page-about .pipeline-media {
  margin: 0;
}

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

.page-about .pipeline-steps li {
  padding: var(--s3) 0;
  border-top: 1px solid var(--line);
}

.page-about .pipeline-steps li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .pipeline-steps h3 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 18px;
}

.page-about .pipeline-steps__num {
  color: var(--amber);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-about .pipeline-steps p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .pipeline-steps a {
  color: var(--cyan);
}

@media (min-width: 900px) {
  .page-about .pipeline-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: var(--s5);
    align-items: start;
  }
}

/* ---------- 03 覆盖范围 ---------- */

.page-about .about-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s2);
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: var(--s3);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
}

.page-about .about-stat__num {
  color: var(--cyan);
  font-family: var(--font-data);
  font-size: clamp(32px, 6vw, 52px);
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.page-about .about-stat--accent .about-stat__num {
  color: var(--amber);
}

.page-about .about-stat__label {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.page-about .about-stat__bar {
  position: relative;
  display: block;
  height: 4px;
  margin-top: 8px;
  border-radius: var(--pill);
  background: var(--line);
  overflow: hidden;
}

.page-about .about-stat__bar::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--w, 50%);
  border-radius: var(--pill);
  background: linear-gradient(90deg, var(--cyan), var(--cyan-soft));
}

.page-about .about-stat--accent .about-stat__bar::after {
  background: linear-gradient(90deg, var(--amber-dim), var(--amber));
}

@media (min-width: 900px) {
  .page-about .about-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--s3);
  }
  .page-about .about-stat {
    padding: var(--s3) var(--s3) var(--s4);
  }
}

/* ---------- 04 球队轨迹 ---------- */

.page-about .track-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s4);
}

.page-about .track-body > p {
  margin: 0;
  color: var(--text);
  font-size: 16px;
  line-height: 1.85;
}

.page-about .track-list {
  list-style: none;
  margin: var(--s4) 0 0;
  padding: 0;
}

.page-about .track-list li {
  padding: var(--s3) 0;
  border-top: 1px solid var(--line);
}

.page-about .track-list h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

.page-about .track-list p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .track-note {
  margin: var(--s3) 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.page-about .track-note a {
  color: var(--cyan);
}

.page-about .track-media {
  margin: 0;
}

@media (min-width: 900px) {
  .page-about .track-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: var(--s5);
    align-items: start;
  }
  .page-about .track-media {
    margin-top: var(--s3);
  }
}

/* ---------- 05 团队 ---------- */

.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s3);
}

.page-about .team-card {
  padding: var(--s3);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .team-card:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
}

.page-about .team-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-about .team-card__num {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-about .team-card h3 {
  margin: 8px 0 10px;
  font-size: 20px;
}

.page-about .team-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .team-foot {
  margin: var(--s4) 0 0;
  padding-top: var(--s3);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.page-about .team-foot a {
  color: var(--cyan);
}

@media (min-width: 760px) {
  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 06 协作 ---------- */

.page-about .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s3);
}

.page-about .partner-item {
  padding-top: var(--s3);
  border-top: 2px solid var(--line);
}

.page-about .partner-item:nth-child(2) {
  border-top-color: var(--amber-dim);
}

.page-about .partner-item h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

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

.page-about .partner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  margin-top: var(--s4);
}

@media (min-width: 760px) {
  .page-about .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--s4);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-nav a,
  .page-about .team-card {
    transition: none;
  }
  .page-about .team-card:hover {
    transform: none;
  }
}
<<<END>>>

.page-about {
  --w: 1rem;
}