.page-about {
  --about-radius: 22px;
  display: block;
  padding-bottom: 72px;
  color: var(--text);
}

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

.page-about .breadcrumbs {
  padding-top: 16px;
  font-size: 13px;
}

.page-about .section {
  padding-top: 60px;
}

.page-about .section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 4.2vw, 36px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin: 8px 0 12px;
  color: var(--text);
}

.page-about .eyebrow {
  margin: 0;
  color: var(--cyan);
  font-family: var(--font-condensed);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 12px;
}

.page-about .lead {
  color: var(--muted);
  max-width: 36em;
  margin: 0;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: 20px;
  align-items: center;
}

.page-about .hero-copy {
  min-width: 0;
}

.page-about .hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.8vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 12px 0 14px;
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 24px;
}

.page-about .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--ink-800);
}

.page-about .hero-stat-num {
  font-family: var(--font-mono);
  font-size: 23px;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 0.01em;
  line-height: 1.2;
}

.page-about .hero-stat-label {
  font-size: 12px;
  color: var(--muted);
}

.page-about .hero-media {
  position: relative;
  margin: 0;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-850);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}

.page-about .hero-media .media-frame {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
}

.page-about .hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .hero-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 6px 13px;
  border-radius: var(--radius-pill);
  background: rgba(255, 107, 44, 0.92);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-about .hero-media .media-note {
  display: block;
  padding: 10px 16px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 版本时间轴 ---------- */
.page-about .about-journey {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-about .journey-rail {
  min-width: 0;
}

.page-about .rail-title {
  margin: 0 0 12px;
  font-family: var(--font-condensed);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .year-list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .year-item {
  flex: 0 0 auto;
}

.page-about .year-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--ink-800);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-about .year-num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--cyan);
  line-height: 1.2;
}

.page-about .year-label {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

.page-about .year-link:hover,
.page-about .year-link:focus-visible {
  border-color: var(--cyan);
  background: var(--ink-700);
}

.page-about .rail-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 28em;
}

.page-about .journey-stories {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.page-about .journey-head .lead {
  margin-bottom: 6px;
}

.page-about .story-block {
  position: relative;
  min-width: 0;
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, var(--ink-800) 0%, var(--ink-900) 100%);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
  scroll-margin-top: 100px;
  transition: border-color 0.24s var(--ease);
}

.page-about .story-block::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), rgba(53, 242, 226, 0));
  opacity: 0.8;
}

.page-about .story-block:target {
  border-color: var(--cyan);
}

.page-about .story-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-about .story-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 800;
  line-height: 1.3;
}

.page-about .story-block p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .story-points {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .story-points li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
}

.page-about .story-points li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--orange);
}

.page-about .story-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 226, 0.4);
  padding-bottom: 2px;
}

.page-about .story-link:hover,
.page-about .story-link:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 数据带 ---------- */
.page-about .stat-band {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(190px, 80%);
  gap: 12px;
  margin-top: 44px;
  padding-bottom: 10px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
}

.page-about .stat-cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius-md);
  background: var(--ink-800);
  scroll-snap-align: start;
}

.page-about .stat-num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--orange);
}

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

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.page-about .team-copy {
  min-width: 0;
}

.page-about .team-bars {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .team-bar {
  --bar: 40%;
  --bar-color: var(--cyan);
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--ink-800);
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-about .team-bar:hover {
  border-color: var(--bar-color);
  transform: translateY(-2px);
}

.page-about .team-bar--data {
  --bar: 50.6%;
  --bar-color: var(--cyan);
}

.page-about .team-bar--content {
  --bar: 31.5%;
  --bar-color: var(--orange);
}

.page-about .team-bar--service {
  --bar: 18%;
  --bar-color: var(--mint);
}

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

.page-about .team-bar-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.page-about .team-bar-num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  line-height: 1;
  color: var(--bar-color);
}

.page-about .team-bar-track {
  height: 8px;
  margin: 10px 0 9px;
  border-radius: var(--radius-pill);
  background: var(--ink-700);
  overflow: hidden;
}

.page-about .team-bar-fill {
  display: block;
  width: var(--bar);
  height: 100%;
  border-radius: inherit;
  background: var(--bar-color);
  transition: width 0.4s var(--ease);
}

.page-about .team-bar-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.page-about .team-media,
.page-about .eco-media {
  margin: 0;
  min-width: 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-800);
}

.page-about .media-frame {
  display: block;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--ink-850);
}

.page-about .media-frame--4x3 {
  aspect-ratio: 4 / 3;
}

.page-about .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .team-media .media-note,
.page-about .eco-media .media-note {
  display: block;
  padding: 10px 6px 4px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 服务方法 ---------- */
.page-about .about-method .section-head .lead {
  margin-top: 4px;
}

.page-about .method-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .method-item {
  position: relative;
  min-width: 0;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--ink-800);
  overflow: hidden;
}

.page-about .method-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), rgba(255, 107, 44, 0));
}

.page-about .method-index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-about .method-title {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
}

.page-about .method-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 安全与资质 ---------- */
.page-about .security-panel {
  padding: 26px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 90% 0%, rgba(110, 240, 184, 0.16), transparent 58%),
    var(--ink-800);
}

.page-about .security-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .security-card {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(6, 20, 38, 0.62);
}

.page-about .security-card-title {
  margin: 10px 0 6px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .security-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 合作生态 ---------- */
.page-about .eco-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 22px;
}

.page-about .eco-wall {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 10px;
  min-width: 0;
}

.page-about .eco-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--ink-800);
  font-size: 13px;
  color: var(--muted);
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-about .eco-chip:hover {
  border-color: var(--cyan);
  background: var(--ink-700);
}

.page-about .eco-chip strong {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  color: var(--cyan);
}

/* ---------- 下一阶段 ---------- */
.page-about .next-panel {
  padding: 26px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--ink-800) 0%, var(--ink-850) 100%);
}

.page-about .next-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .next-item {
  display: flex;
  gap: 12px;
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(6, 20, 38, 0.58);
}

.page-about .next-index {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--orange);
}

.page-about .next-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .next-item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 行动收尾 ---------- */
.page-about .about-cta {
  padding-top: 60px;
}

.page-about .cta-panel {
  padding: 30px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 10% 0%, rgba(255, 107, 44, 0.22), transparent 58%),
    radial-gradient(circle at 92% 100%, rgba(53, 242, 226, 0.16), transparent 56%),
    var(--ink-800);
}

.page-about .cta-panel .section-title {
  margin-top: 0;
}

.page-about .cta-panel .lead {
  max-width: 44em;
}

.page-about .cta-inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 226, 0.45);
}

.page-about .cta-inline-link:hover,
.page-about .cta-inline-link:focus-visible {
  border-bottom-color: var(--cyan);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-about .stat-band {
    grid-auto-flow: row;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-columns: auto;
    overflow-x: visible;
    padding-bottom: 0;
  }
}

@media (min-width: 960px) {
  .page-about .section {
    padding-top: 72px;
  }

  .page-about .about-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 44px;
    padding-top: 28px;
  }

  .page-about .about-journey {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .journey-rail {
    position: sticky;
    top: 96px;
  }

  .page-about .year-list {
    flex-direction: column;
    gap: 8px;
    overflow: visible;
    padding: 0 0 0 18px;
    position: relative;
  }

  .page-about .year-list::before {
    content: "";
    position: absolute;
    top: 14px;
    bottom: 14px;
    left: 4px;
    width: 2px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--cyan), var(--orange));
    opacity: 0.85;
  }

  .page-about .year-item {
    position: relative;
    width: 100%;
  }

  .page-about .year-item::before {
    content: "";
    position: absolute;
    top: 50%;
    left: -18px;
    transform: translateY(-50%);
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 0 3px rgba(53, 242, 226, 0.16);
  }

  .page-about .year-link {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    padding: 11px 14px;
    border-radius: var(--radius-md);
  }

  .page-about .year-num {
    font-size: 18px;
  }

  .page-about .stat-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: 56px;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 44px;
  }

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

  .page-about .security-panel,
  .page-about .next-panel,
  .page-about .cta-panel {
    padding: 36px 32px;
  }

  .page-about .eco-body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 32px;
    align-items: start;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .team-bar,
  .page-about .team-bar-fill,
  .page-about .year-link,
  .page-about .eco-chip,
  .page-about .story-block {
    transition: none;
  }

  .page-about .team-bar:hover {
    transform: none;
  }
}
<<<END>>>