.page-about {
  --about-rule: rgba(26, 29, 31, 0.14);
  --about-muted: rgba(26, 29, 31, 0.68);
  background: var(--cream);
  color: var(--ink);
  overflow-x: clip;
}

.page-about .about-crumb {
  padding: 18px 0 0;
}

.page-about .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--about-muted);
}

.page-about .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--mist);
}

.page-about .breadcrumbs a {
  color: var(--grass);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-about .breadcrumbs a:hover,
.page-about .breadcrumbs a:focus-visible {
  border-bottom-color: var(--grass);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 26px 0 12px;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 82px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  margin: 14px 0 18px;
}

.page-about .about-hero .lede {
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.8;
  max-width: 56ch;
  color: var(--about-muted);
  margin: 0 0 26px;
}

.page-about .hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 0 0 26px;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--about-rule);
}

.page-about .hero-stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-about .hero-stats__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--grass);
}

.page-about .hero-stats__label {
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--about-muted);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero__media {
  margin: 0;
  border: 3px solid var(--ink);
  background: #fff;
  box-shadow: var(--hard);
}

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

.page-about .about-hero__media img {
  aspect-ratio: 14 / 9;
}

.page-about .coverage__media img,
.page-about .production__media img {
  aspect-ratio: 12 / 7;
}

/* ---------- 章节骨架 ---------- */
.page-about .about-chapter {
  padding: clamp(48px, 7vw, 88px) 0;
}

.page-about .chapter-grid {
  display: grid;
  gap: 22px;
}

.page-about .chapter-side {
  border-top: 3px solid var(--ink);
  padding-top: 12px;
}

.page-about .chapter-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--grass);
}

.page-about .chapter-label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--about-muted);
}

.page-about .chapter-body h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 46px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 0 0 20px;
}

.page-about .chapter-body > p {
  font-size: 16.5px;
  line-height: 1.85;
  max-width: 66ch;
  margin: 0 0 18px;
  color: rgba(26, 29, 31, 0.86);
}

/* ---------- 主题带引语 ---------- */
.page-about .about-quote {
  margin: 0;
  padding: 4px 0;
  max-width: 780px;
}

.page-about .about-quote p {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.6vw, 38px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  color: #fff;
}

.page-about .about-quote__src {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(255, 227, 209, 0.92);
}

/* ---------- 覆盖地区 ---------- */
.page-about .filter-bar {
  margin: 6px 0 22px;
}

.page-about .coverage__group + .coverage__group {
  margin-top: 30px;
}

.page-about .coverage__head {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--grass);
  margin: 0;
  padding-left: 12px;
  border-left: 4px solid var(--orange);
}

.page-about .chip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(112px, 1fr));
  gap: 8px;
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-about .chip {
  background: #fff;
  border: 1px solid var(--mist);
  padding: 10px 12px;
  font-size: 13.5px;
  font-weight: 500;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-about .chip:hover {
  border-color: var(--grass);
  box-shadow: var(--hard-sm);
  transform: translate(-2px, -2px);
}

.page-about .region-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-about .region-cell {
  display: grid;
  gap: 4px;
  background: var(--sky-soft);
  border: 1px solid rgba(30, 136, 199, 0.35);
  border-left: 4px solid var(--sky);
  padding: 12px 14px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.page-about .region-cell:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--hard-sm);
}

.page-about .region-cell__num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--sky);
}

.page-about .region-cell strong {
  font-size: 15px;
  font-weight: 800;
}

.page-about .region-cell span:last-child {
  font-size: 12.5px;
  line-height: 1.55;
  color: rgba(26, 29, 31, 0.7);
}

.page-about .coverage__media,
.page-about .production__media {
  margin: 30px 0 26px;
  border: 3px solid var(--ink);
  background: #fff;
  box-shadow: var(--hard-sm);
}

/* ---------- 数据带 ---------- */
.page-about .data-band {
  padding: clamp(30px, 5vw, 54px) 0;
}

.page-about .data-band__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 16px;
}

.page-about .data-band__cell {
  padding-left: 14px;
  border-left: 2px solid rgba(255, 255, 255, 0.24);
}

.page-about .data-figure {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.4vw, 50px);
  font-weight: 700;
  line-height: 1;
  color: #fff;
}

.page-about .data-label {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.76);
}

/* ---------- 生产线 ---------- */
.page-about .production {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.page-about .production__card {
  background: #fff;
  border: 3px solid var(--ink);
  padding: 20px 18px;
  box-shadow: var(--hard-sm);
}

.page-about .production__card--sky {
  box-shadow: 6px 6px 0 rgba(30, 136, 199, 0.35);
}

.page-about .production__card h3 {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 18px;
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--grass);
}

.page-about .production__card--sky h3 {
  border-bottom-color: var(--sky);
}

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

.page-about .production__list li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(26, 29, 31, 0.84);
  padding: 9px 0;
}

.page-about .production__list li + li {
  border-top: 1px dashed var(--about-rule);
}

.page-about .production__list .mono {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--orange);
  padding-top: 3px;
}

/* ---------- 团队 ---------- */
.page-about .team-bars {
  display: grid;
  gap: 18px;
  margin: 24px 0 26px;
  max-width: 640px;
}

.page-about .team-row__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 700;
}

.page-about .team-row__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--grass);
}

.page-about .team-track {
  height: 16px;
  background: #fff;
  border: 2px solid var(--ink);
}

.page-about .team-fill {
  display: block;
  height: 100%;
  width: var(--w, 0%);
  background: var(--grass);
}

.page-about .team-fill--sky {
  background: var(--sky);
}

.page-about .team-fill--orange {
  background: var(--orange);
}

.page-about .team-fill--indigo {
  background: var(--indigo);
}

/* ---------- 阶段 ---------- */
.page-about .stage-list {
  display: grid;
  gap: 16px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: stage;
}

.page-about .stage {
  background: #fff;
  border: 3px solid var(--ink);
  padding: 20px 18px;
  box-shadow: var(--hard-sm);
}

.page-about .stage__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--grass);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.page-about .stage__num--sky {
  background: var(--sky);
}

.page-about .stage__num--indigo {
  background: var(--indigo);
}

.page-about .stage h3 {
  font-size: 19px;
  font-weight: 900;
  margin: 14px 0 10px;
}

.page-about .stage__kw {
  display: inline-block;
  margin: 0 0 10px;
  padding: 4px 12px;
  border-radius: var(--pill);
  background: rgba(31, 122, 77, 0.12);
  color: var(--grass-deep);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
}

.page-about .stage__kw--sky {
  background: var(--sky-soft);
  color: #0f5c88;
}

.page-about .stage__kw--indigo {
  background: rgba(58, 42, 107, 0.12);
  color: var(--indigo);
}

.page-about .stage p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(26, 29, 31, 0.82);
}

/* ---------- 生态 ---------- */
.page-about .eco-matrix {
  display: grid;
  gap: 12px;
  margin: 22px 0 24px;
}

.page-about .eco-matrix .index-cell {
  background: #fff;
  border: 3px solid var(--ink);
  padding: 18px 16px;
}

.page-about .eco-matrix .index-cell:nth-child(1) {
  border-color: var(--grass);
}

.page-about .eco-matrix .index-cell:nth-child(2) {
  border-color: var(--sky);
}

.page-about .eco-matrix .index-cell:nth-child(3) {
  border-color: var(--orange);
}

.page-about .eco-matrix .index-cell:nth-child(4) {
  border-color: var(--wine);
}

.page-about .eco-matrix .index-cell__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--about-muted);
  margin-bottom: 8px;
}

.page-about .eco-matrix .index-cell__title {
  font-size: 17px;
  font-weight: 900;
  margin: 0 0 8px;
}

.page-about .eco-matrix .index-cell__meta {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(26, 29, 31, 0.78);
}

.page-about .eco-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

/* ---------- 原则 ---------- */
.page-about .principles {
  display: grid;
  gap: 18px;
  margin-top: 4px;
}

.page-about .principle {
  background: #fff;
  border: 3px solid var(--ink);
  border-left-width: 8px;
  padding: 20px 18px;
  box-shadow: 8px 8px 0 rgba(11, 59, 60, 0.14);
}

.page-about .principle h3 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 17.5px;
  font-weight: 900;
  margin: 0 0 10px;
}

.page-about .principle__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-about .principle p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(26, 29, 31, 0.82);
}

/* ---------- 下一步 ---------- */
.page-about .next {
  margin-top: clamp(20px, 4vw, 40px);
  padding: clamp(36px, 6vw, 64px) 0 12px;
  border-top: 3px solid var(--ink);
  background: linear-gradient(180deg, var(--cream) 0%, rgba(220, 238, 248, 0.55) 100%);
}

.page-about .next__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.16;
  margin: 0 0 24px;
}

.page-about .next__grid {
  display: grid;
  gap: 12px;
}

.page-about .next-card {
  display: grid;
  gap: 6px;
  padding: 20px 18px;
  background: #fff;
  border: 3px solid var(--ink);
  color: inherit;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.page-about .next-card:hover,
.page-about .next-card:focus-visible {
  transform: translate(-3px, -3px);
  box-shadow: var(--hard);
}

.page-about .next-card__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-about .next-card strong {
  font-size: 18px;
  font-weight: 900;
}

.page-about .next-card span:last-child {
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(26, 29, 31, 0.76);
}

.page-about .next__back {
  margin: 22px 0 0;
  font-size: 14px;
  color: var(--about-muted);
}

.page-about .next__back a {
  color: var(--grass);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
}

.page-about .next__back a:hover,
.page-about .next__back a:focus-visible {
  color: var(--grass-deep);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-about .eco-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: end;
    gap: 48px;
  }

  .page-about .about-hero__media {
    transform: rotate(-1.4deg);
  }

  .page-about .chapter-grid {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 48px;
  }

  .page-about .chapter-side {
    position: sticky;
    top: 96px;
    align-self: start;
  }

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

@media (min-width: 1024px) {
  .page-about .data-band__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .chapter-body > p {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .chip,
  .page-about .region-cell,
  .page-about .next-card,
  .page-about .about-hero__media {
    transition: none;
    transform: none;
  }
}
<<<END>>>

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