.page-about {
  --about-cut: 18px;
  background: var(--c-ink);
  color: var(--c-mist);
  font-family: var(--font-body);
  line-height: 1.75;
  display: block;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 2.75rem) 0 clamp(2rem, 5vw, 3.5rem);
  background: var(--c-green);
  border-bottom: 1px solid var(--line);
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, transparent 0 26px, rgba(200, 255, 61, 0.05) 26px 27px);
  pointer-events: none;
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-red) 0 18%, var(--c-wine) 18% 55%, var(--c-indigo) 55% 100%);
}
.page-about .about-hero > .wrap {
  position: relative;
  z-index: 1;
}
.page-about .hero-grid {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  margin-top: 1.25rem;
}
.page-about .hero-copy h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 7.5vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: 0.01em;
  margin: 0.45rem 0 0.9rem;
  color: var(--c-mist);
}
.page-about .hero-lede {
  max-width: 46ch;
  font-size: clamp(0.95rem, 2.6vw, 1.06rem);
  color: rgba(242, 245, 240, 0.86);
  margin: 0;
}
.page-about .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.7rem;
  list-style: none;
  margin: 1.35rem 0 0;
  padding: 0;
  font-size: 0.82rem;
  color: var(--c-stone);
}
.page-about .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  background: rgba(11, 27, 43, 0.55);
  border-left: 3px solid var(--c-red);
}
.page-about .hero-facts .mono {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--c-lime);
  line-height: 1.1;
}
.page-about .hero-shot {
  margin: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
  background: var(--c-board);
}
.page-about .hero-shot img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 通用章节 ---------- */
.page-about .sec {
  padding: clamp(2.25rem, 6vw, 4.5rem) 0;
}
.page-about .sec-head {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}
.page-about .sec-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4.4vw, 2.4rem);
  line-height: 1.3;
  margin: 0.5rem 0 0;
}

/* ---------- 起点：浅色长文区 ---------- */
.page-about .sec--paper {
  background: var(--c-paper);
  color: var(--c-green);
}
.page-about .sec--paper .sec-title {
  color: var(--c-green);
}
.page-about .sec--paper .eyebrow {
  color: var(--c-wine);
}
.page-about .origin-grid {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}
.page-about .origin-body p {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: #234238;
}
.page-about .origin-body p:last-child {
  margin-bottom: 0;
}
.page-about .pull-card {
  background: var(--c-board);
  color: var(--c-mist);
  padding: 1.15rem 1.15rem 1.25rem;
  border-left: 4px solid var(--c-red);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}
.page-about .pull-quote {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  line-height: 1.6;
  margin: 0 0 0.7rem;
  color: var(--c-mist);
}
.page-about .pull-note {
  margin: 0;
  font-size: 0.84rem;
  color: var(--c-stone);
  padding-top: 0.7rem;
  border-top: 1px solid rgba(242, 245, 240, 0.16);
}

/* ---------- 覆盖：战术板绿 ---------- */
.page-about .sec--board {
  position: relative;
  background: var(--c-board);
  color: var(--c-mist);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.page-about .cover-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}
.page-about .stat {
  background: rgba(11, 27, 43, 0.58);
  padding: 0.95rem 0.95rem 1rem;
  border-top: 2px solid var(--c-lime);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}
.page-about .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 5.5vw, 2.4rem);
  line-height: 1.05;
  color: var(--c-lime);
}
.page-about .stat-label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.8rem;
  color: var(--c-stone);
}
.page-about .compare-panel {
  margin-top: clamp(1.25rem, 3vw, 2rem);
}
.page-about .compare-panel p {
  margin: 0 0 1rem;
  color: rgba(242, 245, 240, 0.86);
  font-size: 0.96rem;
  max-width: 68ch;
}
.page-about .compare-panel .btn {
  margin-top: 0.4rem;
}

/* ---------- 团队：夜场蓝 ---------- */
.page-about .sec--ink {
  background: var(--c-ink);
}
.page-about .team-grid {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.25rem);
}
.page-about .flow-fig {
  margin: 0;
}
.page-about .flow-fig img {
  display: block;
  width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
  background: var(--c-board);
}
.page-about .flow-fig figcaption {
  margin-top: 0.65rem;
  font-size: 0.8rem;
  color: var(--c-stone);
}
.page-about .crew-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.7rem;
}
.page-about .crew {
  background: var(--c-board);
  padding: 0.85rem 1rem 0.95rem;
  border-left: 3px solid var(--c-indigo);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}
.page-about .crew-title {
  font-family: var(--font-cond);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  margin: 0 0 0.35rem;
  color: var(--c-lime);
}
.page-about .crew p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.65;
  color: rgba(242, 245, 240, 0.84);
}
.page-about .cadence {
  margin: 1.1rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.page-about .cadence-row {
  display: grid;
  gap: 0.15rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
}
.page-about .cadence-row dt {
  font-family: var(--font-cond);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--c-red);
}
.page-about .cadence-row dd {
  margin: 0;
  font-size: 0.87rem;
  color: rgba(242, 245, 240, 0.82);
}
.page-about .team-link {
  margin: 1rem 0 0;
}
.page-about .team-link a {
  color: var(--c-lime);
  font-size: 0.9rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 255, 61, 0.45);
}

/* ---------- 历程：靛紫 ---------- */
.page-about .sec--indigo {
  background: var(--c-indigo);
  color: var(--c-mist);
}
.page-about .tl-fig {
  margin: 0 0 clamp(1.25rem, 3vw, 2rem);
}
.page-about .tl-fig img {
  display: block;
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: 0.9;
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--about-cut) 100%, 0 calc(100% - var(--about-cut)));
  background: var(--c-ink);
}
.page-about .tl-fig figcaption {
  margin-top: 0.6rem;
  font-size: 0.8rem;
  color: rgba(242, 245, 240, 0.6);
}
.page-about .timeline {
  position: relative;
  margin-top: 0.5rem;
  padding-left: 1.6rem;
  border-left: 2px solid rgba(200, 255, 61, 0.28);
}
.page-about .tl-item {
  position: relative;
  margin-bottom: 0.7rem;
}
.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: calc(-1.6rem - 7px);
  top: 1rem;
  width: 10px;
  height: 10px;
  background: var(--c-red);
  transform: rotate(45deg);
  border: 2px solid var(--c-indigo);
}
.page-about .tl-item summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.2rem 0.75rem;
  padding: 0.6rem 0.9rem;
  cursor: pointer;
  list-style: none;
  background: rgba(11, 27, 43, 0.5);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}
.page-about .tl-item summary::-webkit-details-marker {
  display: none;
}
.page-about .tl-item summary::marker {
  content: "";
}
.page-about .tl-item[open] summary {
  background: rgba(200, 255, 61, 0.13);
}
.page-about .tl-year {
  font-family: var(--font-mono);
  font-size: 0.98rem;
  color: var(--c-lime);
}
.page-about .tl-title {
  font-family: var(--font-cond);
  font-size: 1.02rem;
  letter-spacing: 0.05em;
  color: var(--c-mist);
}
.page-about .tl-body {
  padding: 0.7rem 0.2rem 0 0.9rem;
  font-size: 0.89rem;
  line-height: 1.7;
  color: rgba(242, 245, 240, 0.84);
  border-left: 2px solid rgba(215, 38, 61, 0.5);
  margin-left: 0.1rem;
}

/* ---------- 备案：米白 + 切角金 ---------- */
.page-about .sec--trust {
  background: var(--c-paper);
  color: var(--c-green);
}
.page-about .sec--trust .sec-title {
  color: var(--c-green);
}
.page-about .sec--trust .eyebrow {
  color: var(--c-wine);
}
.page-about .trust-panel {
  border-top: 1px solid var(--c-gold);
  border-bottom: 1px solid rgba(217, 178, 106, 0.45);
  padding: clamp(0.6rem, 2vw, 0.9rem) 0;
}
.page-about .trust-row {
  display: grid;
  gap: 0.15rem;
  padding: 0.7rem 0;
  border-bottom: 1px dashed rgba(14, 42, 36, 0.16);
  font-size: 0.9rem;
}
.page-about .trust-row:last-child {
  border-bottom: 0;
}
.page-about .trust-k {
  font-family: var(--font-cond);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  color: var(--c-wine);
}
.page-about .trust-v {
  color: #22403a;
}
.page-about .trust-v a {
  color: var(--c-wine);
  text-decoration: none;
  border-bottom: 1px solid rgba(107, 31, 46, 0.35);
}
.page-about .trust-v .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.page-about .trust-links {
  margin: 1rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
  align-items: center;
  font-size: 0.86rem;
  color: rgba(14, 42, 36, 0.55);
}
.page-about .trust-links a {
  color: var(--c-wine);
  text-decoration: none;
  border-bottom: 1px solid rgba(107, 31, 46, 0.3);
}

/* ---------- 收尾 CTA ---------- */
.page-about .about-cta {
  background: var(--c-wine);
  padding: clamp(2rem, 5vw, 3rem) 0;
  border-top: 3px solid var(--c-red);
}
.page-about .cta-inner {
  display: grid;
  gap: 0.85rem;
}
.page-about .cta-title {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 3.8vw, 2rem);
  line-height: 1.3;
  margin: 0;
  color: var(--c-mist);
}
.page-about .cta-text {
  margin: 0;
  font-size: 0.92rem;
  color: rgba(242, 245, 240, 0.85);
  max-width: 52ch;
}
.page-about .cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  margin-top: 0.35rem;
}
.page-about .back-top {
  font-size: 0.84rem;
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 245, 240, 0.5);
  padding-bottom: 1px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .origin-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(1.5rem, 3.5vw, 2.75rem);
  }
  .page-about .cover-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .crew-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .cadence-row {
    grid-template-columns: 8.5rem minmax(0, 1fr);
    gap: 0.9rem;
    align-items: baseline;
  }
  .page-about .trust-row {
    grid-template-columns: 7.5rem minmax(0, 1fr);
    gap: 0.9rem;
    align-items: baseline;
  }
  .page-about .cta-inner {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-about .hero-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: center;
    gap: clamp(2rem, 4vw, 3.5rem);
  }
  .page-about .team-grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: start;
  }
  .page-about .flow-fig {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }
  .page-about .timeline {
    padding-left: 2.2rem;
  }
  .page-about .tl-item::before {
    left: calc(-2.2rem - 7px);
  }
  .page-about .tl-item summary {
    padding: 0.7rem 1.1rem;
  }
  .page-about .about-cta {
    padding: clamp(2.5rem, 4vw, 3.5rem) 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition: none !important;
    animation: none !important;
  }
}
<<<PAGE_CSS_END>>>