.page-about {
  --about-r: 18px;
  --about-r-lg: 24px;
  --about-lead-max: 44rem;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding-block: clamp(2.5rem, 6vw, 5rem) clamp(2rem, 4vw, 3.5rem);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(120% 85% at 88% 0%, rgba(30, 90, 168, 0.24), transparent 62%);
}

.page-about .about-hero > .container {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .breadcrumb {
  margin-bottom: 1.5rem;
}

.page-about .hero-eyebrow {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-about .about-hero h1 {
  margin: 0.85rem 0 0;
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.2vw, 3.3rem);
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .about-hero h1::after {
  content: "";
  display: block;
  width: 96px;
  height: 2px;
  margin-top: 1.15rem;
  background: linear-gradient(to right, var(--gold), rgba(217, 169, 76, 0));
}

.page-about .hero-lead {
  margin: 1.5rem 0 0;
  max-width: var(--about-lead-max);
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  line-height: 1.9;
  color: rgba(244, 239, 228, 0.82);
}

.page-about .hero-stats {
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 1.6rem 0 0;
  border-top: var(--line-gold);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem 1.25rem;
}

.page-about .hero-stats li {
  border-left: 2px solid rgba(217, 169, 76, 0.42);
  padding-left: 0.9rem;
  min-width: 0;
}

.page-about .stat-num {
  display: block;
  font-weight: 500;
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--gold-hi);
}

.page-about .stat-label {
  display: block;
  margin-top: 0.45rem;
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--mist);
}

/* ---------- 通用区块 ---------- */

.page-about .about-section {
  padding-block: clamp(2.75rem, 6vw, 4.5rem);
  border-top: 1px solid rgba(217, 169, 76, 0.16);
}

.page-about .section-lead {
  margin: 0 0 2.25rem;
  max-width: var(--about-lead-max);
  font-size: 1.02rem;
  line-height: 1.9;
  color: rgba(244, 239, 228, 0.78);
}

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

.page-about .about-figure--wide {
  margin-top: clamp(2rem, 4vw, 3rem);
}

.page-about .neon-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 12px;
}

.page-about .about-figure__cap {
  margin: 0.75rem 0 0;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- 时间轴 ---------- */

.page-about .axis {
  display: grid;
  gap: 0;
}

.page-about .axis-node {
  position: relative;
  padding: 0 0 2.5rem 1.9rem;
}

.page-about .axis-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, rgba(217, 169, 76, 0.6), rgba(217, 169, 76, 0.12));
}

.page-about .axis-node:last-child {
  padding-bottom: 0;
}

.page-about .axis-node:last-child::before {
  bottom: auto;
  height: 1.1rem;
}

.page-about .axis-node::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--gold);
  box-sizing: border-box;
  transform: translateX(-50%);
  transition: border-color 240ms var(--ease), background 240ms var(--ease);
}

.page-about .axis-node:hover::after {
  border-color: var(--cyan);
  background: var(--ink-2);
}

.page-about .axis-mark {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.65rem;
}

.page-about .axis-year {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--gold-hi);
}

.page-about .axis-ver {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-about .axis-card {
  border: var(--line-gold);
  border-radius: var(--about-r);
  padding: 1.3rem 1.4rem;
  background: linear-gradient(155deg, rgba(16, 49, 42, 0.86), rgba(11, 31, 26, 0.55));
  transition: transform 240ms var(--ease), border-color 240ms var(--ease);
}

.page-about .axis-card:hover {
  transform: translateY(-4px);
  border-color: rgba(242, 212, 138, 0.72);
}

.page-about .axis-card h3 {
  margin: 0 0 0.7rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.5;
  color: var(--paper);
}

.page-about .axis-card p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.76);
}

.page-about .axis-card__more {
  margin-top: 0.75rem !important;
  padding-top: 0.75rem;
  border-top: 1px dashed rgba(143, 163, 156, 0.3);
  font-size: 0.88rem !important;
  opacity: 0.78;
  transition: opacity 240ms var(--ease);
}

.page-about .axis-card:hover .axis-card__more {
  opacity: 1;
}

/* ---------- 团队分工 ---------- */

.page-about .team-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
}

.page-about .team-card {
  border: var(--line-gold);
  border-radius: var(--about-r);
  padding: 1.5rem 1.35rem;
  background: rgba(16, 49, 42, 0.55);
  transition: transform 240ms var(--ease), border-color 240ms var(--ease), background 240ms var(--ease);
}

.page-about .team-card:hover,
.page-about .team-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(242, 212, 138, 0.78);
  background: rgba(16, 49, 42, 0.82);
}

.page-about .team-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-about .team-card__idx {
  margin: 0 0 0.85rem;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--tile-2);
}

.page-about .team-card h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.5;
  color: var(--paper);
}

.page-about .team-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.75);
}

.page-about .team-card__hint {
  margin-top: 0.85rem !important;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(30, 90, 168, 0.45);
  font-size: 0.8rem !important;
  color: var(--tile-2) !important;
}

/* ---------- 生产流程 ---------- */

.page-about .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  counter-reset: flowstep;
}

.page-about .flow-step {
  position: relative;
  border: var(--line-soft);
  border-left: 2px solid var(--gold);
  border-radius: 0 var(--about-r) var(--about-r) 0;
  padding: 1.25rem 1.3rem;
  background: rgba(16, 49, 42, 0.4);
}

.page-about .flow-step__no {
  display: block;
  margin-bottom: 0.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-about .flow-step h3 {
  margin: 0 0 0.55rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--paper);
}

.page-about .flow-step p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.74);
}

/* ---------- 档案室 ---------- */

.page-about .archive-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}

.page-about .archive-body p {
  margin: 0 0 1.1rem;
  max-width: 38rem;
  font-size: 0.96rem;
  line-height: 1.9;
  color: rgba(244, 239, 228, 0.78);
}

.page-about .archive-body a {
  color: var(--tile-2);
  text-decoration-line: underline;
  text-decoration-color: rgba(111, 168, 220, 0.5);
  text-underline-offset: 0.22em;
  transition: color 200ms var(--ease), text-decoration-color 200ms var(--ease);
}

.page-about .archive-body a:hover {
  color: var(--gold-hi);
  text-decoration-color: var(--gold-hi);
}

.page-about .archive-list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-about .archive-list li {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr);
  gap: 0.9rem;
  align-items: baseline;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid rgba(143, 163, 156, 0.18);
}

.page-about .archive-list__k {
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-about .archive-list__v {
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(244, 239, 228, 0.76);
}

.page-about .version-chart {
  margin-top: 1.9rem;
  padding: 1.35rem 1.35rem 1rem;
  border: var(--line-gold);
  border-radius: var(--about-r);
  background: rgba(16, 49, 42, 0.5);
}

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

.page-about .version-chart__cap {
  margin: 0.85rem 0 0;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-about .archive-link {
  margin-top: 1.75rem;
}

/* ---------- 质量复核 ---------- */

.page-about .quality-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}

.page-about .quality-body p {
  margin: 0 0 1.15rem;
  max-width: 38rem;
  font-size: 0.96rem;
  line-height: 1.9;
  color: rgba(244, 239, 228, 0.78);
}

.page-about .quality-body p:last-child {
  margin-bottom: 0;
}

/* ---------- 日常协作 ---------- */

.page-about .daily-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
}

.page-about .daily-item {
  border-top: 2px solid rgba(228, 121, 74, 0.65);
  padding-top: 1.1rem;
}

.page-about .daily-item__t {
  display: block;
  margin-bottom: 0.7rem;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-about .daily-item h3 {
  margin: 0 0 0.55rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--paper);
}

.page-about .daily-item p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.74);
}

/* ---------- 结尾引导 ---------- */

.page-about .about-cta {
  padding-block: clamp(2.5rem, 5vw, 4rem) clamp(3rem, 6vw, 5rem);
}

.page-about .about-cta__box {
  border: 1px solid rgba(42, 211, 180, 0.3);
  border-radius: var(--about-r-lg);
  padding: clamp(1.75rem, 4vw, 3rem);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(30, 90, 168, 0.34), transparent 62%),
    linear-gradient(150deg, rgba(16, 49, 42, 0.95), rgba(11, 31, 26, 0.78));
}

.page-about .about-cta__box h2 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .about-cta__box p {
  margin: 0 0 1.75rem;
  max-width: 40rem;
  font-size: 0.98rem;
  line-height: 1.9;
  color: rgba(244, 239, 228, 0.8);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-about .hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .axis-node {
    display: grid;
    grid-template-columns: 6.5rem minmax(0, 1fr);
    column-gap: 1.75rem;
    padding-bottom: 3rem;
  }

  .page-about .axis-mark {
    flex-direction: column;
    align-items: flex-end;
    gap: 0.35rem;
    margin-bottom: 0;
    padding-right: 0.35rem;
    text-align: right;
  }

  .page-about .axis-node:nth-child(even) .axis-card {
    margin-left: clamp(0rem, 3vw, 2.75rem);
  }

  .page-about .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

@media (min-width: 960px) {
  .page-about .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.15rem;
  }

  .page-about .archive-layout {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 2.75rem;
    align-items: start;
  }

  .page-about .quality-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 2.75rem;
    align-items: start;
  }

  .page-about .daily-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
  }
}

@media (min-width: 1080px) {
  .page-about .team-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .team-grid > :nth-child(even) {
    margin-top: 2.25rem;
  }

  .page-about .axis-node {
    grid-template-columns: 8rem minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .axis-card,
  .page-about .team-card,
  .page-about .axis-card__more {
    transition: none;
  }

  .page-about .axis-card:hover,
  .page-about .team-card:hover,
  .page-about .team-card:focus-visible {
    transform: none;
  }
}
<<<END>>>