.page-about {
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  margin-top: calc(var(--header-h) * -1);
  padding: calc(var(--header-h) + 44px) 0 48px;
  background:
    radial-gradient(circle at 88% 10%, rgba(242, 183, 5, .32), transparent 52%),
    radial-gradient(circle at 4% 92%, rgba(31, 111, 120, .18), transparent 54%),
    linear-gradient(168deg, #FFF9EE 0%, #F6EFE3 58%, #EFE1CB 100%);
  border-bottom: 10px solid var(--ochre);
}

.page-about .about-hero-inner {
  position: relative;
}

.page-about .crumb {
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--slate);
  margin-bottom: 24px;
}

.page-about .crumb a {
  color: var(--ochre);
  text-decoration: none;
  border-bottom: 1px solid rgba(166, 61, 47, .45);
}

.page-about .crumb-sep {
  margin: 0 8px;
}

.page-about .about-kicker {
  display: inline-block;
  margin: 0 0 18px;
  font-family: var(--font-hand);
  font-size: 15px;
  background: var(--saffron);
  color: var(--ink);
  padding: 5px 14px;
  border: 2px solid var(--ink);
  transform: rotate(-1.4deg);
  box-shadow: 4px 4px 0 var(--ochre-deep);
}

.page-about .about-hero-title {
  margin: 0 0 22px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 86px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--ink);
  text-shadow: 3px 3px 0 rgba(166, 61, 47, .18);
}

.page-about .about-hero-lead {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.9;
  max-width: 62ch;
  color: #3A342C;
}

.page-about .hero-facts {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .hero-facts li {
  border: 3px solid var(--ink);
  background: var(--paper-light);
  padding: 12px 14px;
  box-shadow: 5px 5px 0 var(--teal-deep);
}

.page-about .fact-num {
  display: block;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 28px;
  line-height: 1;
  color: var(--ochre);
}

.page-about .fact-label {
  display: block;
  margin-top: 7px;
  font-size: 12.5px;
  color: var(--slate);
}

.page-about .anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 2px dashed rgba(28, 26, 23, .22);
}

.page-about .anchor-nav a {
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--teal-deep);
  text-decoration: none;
  padding: 6px 11px;
  border: 2px solid var(--teal-deep);
  background: rgba(255, 249, 238, .75);
  transition: background .15s ease, color .15s ease;
}

.page-about .anchor-nav a:hover,
.page-about .anchor-nav a:focus-visible {
  background: var(--teal-deep);
  color: var(--paper-light);
}

/* ---------- 章节通用 ---------- */
.page-about .about-sec {
  padding: 52px 0;
}

.page-about .about-sec + .about-sec {
  border-top: 3px solid rgba(28, 26, 23, .12);
}

.page-about .about-sec--dark {
  background: linear-gradient(180deg, #0F4C55 0%, #143F46 100%);
  color: var(--paper-light);
  border-top: 8px solid var(--saffron);
  border-bottom: 8px solid var(--ochre);
}

.page-about .about-sec--paper {
  background: linear-gradient(180deg, #EFE1CB 0%, #F6EFE3 100%);
}

.page-about .about-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 34px;
}

.page-about .num-badge {
  display: inline-block;
  width: max-content;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 38px;
  line-height: .92;
  color: var(--ochre);
  background: var(--saffron);
  padding: 5px 13px;
  border: 3px solid var(--ink);
  box-shadow: 5px 5px 0 var(--ochre-deep);
}

.page-about .num-badge--light {
  color: var(--ink);
  background: var(--saffron);
  box-shadow: 5px 5px 0 rgba(246, 239, 227, .35);
}

.page-about .about-head h2 {
  margin: 0 0 12px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(24px, 4.6vw, 42px);
  line-height: 1.2;
  letter-spacing: -.005em;
}

.page-about .about-sec-lead {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.85;
  max-width: 66ch;
  color: #4A4238;
}

.page-about .about-sec--dark .about-sec-lead {
  color: rgba(255, 249, 238, .86);
}

/* ---------- 通用两栏 ---------- */
.page-about .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

/* ---------- 时间线 ---------- */
.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .tl-item {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-top: 2px solid rgba(28, 26, 23, .2);
}

.page-about .tl-item:last-child {
  border-bottom: 2px solid rgba(28, 26, 23, .2);
}

.page-about .tl-year {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.25;
  color: var(--teal);
}

.page-about .tl-body h3 {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.35;
}

.page-about .tl-body p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: #403930;
}

.page-about .hero-figure {
  margin: 0;
  border: 3px solid var(--ink);
  background: var(--paper-light);
  box-shadow: 8px 8px 0 var(--ochre);
}

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

.page-about .hero-figure figcaption {
  padding: 12px 14px;
  font-family: var(--font-hand);
  font-size: 13.5px;
  color: var(--teal-deep);
  border-top: 2px solid var(--ink);
  background: var(--paper-light);
}

/* ---------- 三维分类 ---------- */
.page-about .dim-figure {
  background: rgba(246, 239, 227, .08);
  border: 3px solid var(--saffron);
  padding: 16px;
  box-shadow: 8px 8px 0 rgba(166, 61, 47, .85);
}

.page-about .axis-figure {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .dim-caption {
  margin: 14px 0 0;
  font-family: var(--font-hand);
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(255, 249, 238, .82);
}

.page-about .dim-list {
  display: grid;
  gap: 14px;
}

.page-about .dim-card {
  background: var(--paper-light);
  color: var(--ink);
  border: 3px solid var(--ink);
  padding: 16px 18px;
  box-shadow: 6px 6px 0 rgba(242, 183, 5, .9);
}

.page-about .dim-key {
  margin: 0 0 6px;
  font-family: var(--font-hand);
  font-size: 13px;
  color: var(--ochre);
  letter-spacing: .04em;
}

.page-about .dim-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.35;
}

.page-about .dim-card p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.8;
  color: #3F382F;
}

.page-about .method-note {
  margin: 4px 0 0;
  padding: 14px 16px;
  border-left: 8px solid var(--saffron);
  background: rgba(14, 138, 106, .16);
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(255, 249, 238, .95);
}

/* ---------- 三审流程 ---------- */
.page-about .review-flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .review-step {
  border: 2px solid var(--ink);
  border-left: 10px solid var(--ochre);
  background: var(--paper-light);
  padding: 18px 18px 18px 20px;
  box-shadow: 6px 6px 0 rgba(15, 76, 85, .85);
}

.page-about .step-index {
  display: block;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 26px;
  line-height: 1;
  color: var(--teal);
  margin-bottom: 8px;
}

.page-about .review-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 17px;
}

.page-about .review-step p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.8;
  color: #3F382F;
}

.page-about .rhythm-band {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  background: var(--ink);
  border: 3px solid var(--ink);
}

.page-about .rhythm-cell {
  background: var(--ochre);
  color: var(--paper-light);
  padding: 18px 16px;
}

.page-about .rhythm-cell:nth-child(2) {
  background: var(--teal);
}

.page-about .rhythm-cell:nth-child(3) {
  background: var(--jade);
}

.page-about .rhythm-num {
  display: block;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 30px;
  line-height: 1;
}

.page-about .rhythm-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(255, 249, 238, .9);
}

/* ---------- 团队 ---------- */
.page-about .team-figure {
  margin: 0;
  border: 3px solid var(--ink);
  background: var(--paper-light);
  box-shadow: 8px 8px 0 var(--teal);
}

.page-about .team-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .team-figure figcaption {
  padding: 12px 14px;
  font-family: var(--font-hand);
  font-size: 13.5px;
  color: var(--ochre-deep);
  border-top: 2px solid var(--ink);
}

.page-about .team-roles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .role-cell {
  background: var(--paper-light);
  border: 3px solid var(--ink);
  padding: 16px;
  box-shadow: 5px 5px 0 rgba(166, 61, 47, .9);
}

.page-about .role-num {
  display: block;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 32px;
  line-height: 1;
  color: var(--jade);
}

.page-about .role-cell h3 {
  margin: 8px 0 8px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 16.5px;
}

.page-about .role-cell p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.8;
  color: #3F382F;
}

.page-about .eco-band {
  margin-top: 20px;
  background: var(--ochre-deep);
  border: 3px solid var(--ink);
  padding: 18px 16px;
  box-shadow: 6px 6px 0 var(--saffron);
}

.page-about .eco-title {
  margin: 0 0 14px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--saffron);
}

.page-about .eco-track {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 8px;
}

.page-about .eco-node {
  flex: 1 1 130px;
  background: var(--paper-light);
  border: 2px solid var(--ink);
  padding: 10px 12px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 13.5px;
  color: var(--ink);
}

.page-about .eco-node span {
  display: block;
  margin-top: 5px;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 12px;
  color: var(--slate);
}

.page-about .eco-link {
  flex: 1 1 22px;
  min-width: 18px;
  height: 14px;
  align-self: center;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  background: repeating-linear-gradient(45deg, var(--saffron) 0 7px, var(--jade) 7px 14px);
}

.page-about .eco-note {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(255, 249, 238, .88);
}

/* ---------- 图标库 ---------- */
.page-about .split--icons {
  align-items: start;
}

.page-about .icon-wall-wrap {
  border: 3px solid var(--ink);
  background: var(--paper-light);
  box-shadow: 8px 8px 0 var(--ochre);
  padding: 14px;
}

.page-about .icon-wall {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 5px;
}

.page-about .icon-chip {
  display: block;
  aspect-ratio: 1 / 1;
  background: var(--paper-light);
  border: 1px solid rgba(28, 26, 23, .35);
  border-radius: 2px;
}

.page-about .icon-chip:nth-child(5n+1) { background: var(--saffron); }
.page-about .icon-chip:nth-child(5n+2) { background: var(--jade); }
.page-about .icon-chip:nth-child(5n+3) { background: #E7D3B6; }
.page-about .icon-chip:nth-child(5n+4) { background: var(--ochre); }
.page-about .icon-chip:nth-child(5n+5) { background: #CFE4E2; }

.page-about .icon-wall-caption {
  margin: 12px 0 0;
  font-family: var(--font-hand);
  font-size: 13px;
  color: var(--teal-deep);
}

.page-about .icon-figure {
  margin: 0;
  border: 3px solid var(--ink);
  background: var(--paper-light);
  box-shadow: 8px 8px 0 var(--teal-deep);
}

.page-about .icon-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .icon-figure figcaption {
  padding: 12px 14px;
  font-family: var(--font-hand);
  font-size: 13px;
  color: var(--ochre-deep);
  border-top: 2px solid var(--ink);
}

.page-about .icon-points {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .icon-points li {
  border-top: 6px solid var(--teal);
  padding-top: 12px;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.8;
  color: #3F382F;
}

.page-about .icon-points strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 15px;
  color: var(--ink);
}

/* ---------- 服务覆盖 ---------- */
.page-about .about-reach {
  padding-bottom: 68px;
}

.page-about .reach-card {
  background: linear-gradient(150deg, #A63D2F 0%, #74261F 100%);
  color: var(--paper-light);
  border: 3px solid var(--ink);
  box-shadow: 10px 10px 0 var(--teal-deep);
  padding: 26px 20px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about .reach-main h2 {
  margin: 16px 0 14px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(22px, 4.4vw, 34px);
  line-height: 1.25;
  color: var(--paper-light);
}

.page-about .reach-main p {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(255, 249, 238, .92);
}

.page-about .reach-main a {
  color: var(--saffron);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 183, 5, .7);
}

.page-about .reach-main a:hover,
.page-about .reach-main a:focus-visible {
  color: var(--paper-light);
  border-bottom-color: var(--paper-light);
}

.page-about .reach-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

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

  .page-about .reach-links {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-start;
  }
}

@media (min-width: 900px) {
  .page-about .about-sec {
    padding: 72px 0;
  }

  .page-about .about-hero {
    padding: calc(var(--header-h) + 66px) 0 64px;
  }

  .page-about .about-head {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
    margin-bottom: 42px;
  }

  .page-about .num-badge {
    font-size: 46px;
    padding: 6px 16px;
    box-shadow: 7px 7px 0 var(--ochre-deep);
  }

  .page-about .split--timeline {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .tl-item {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 22px;
    padding: 24px 0;
  }

  .page-about .tl-year {
    font-size: 26px;
  }

  .page-about .tl-body h3 {
    font-size: 20px;
  }

  .page-about .tl-body p {
    font-size: 15.5px;
  }

  .page-about .split--method {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .hero-figure {
    position: sticky;
    top: 96px;
  }

  .page-about .split--team {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 38px;
  }

  .page-about .split--icons {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 36px;
  }

  .page-about .reach-card {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 34px;
    padding: 36px 34px;
  }

  .page-about .reach-links {
    flex-direction: column;
  }

  .page-about .about-hero-lead {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .anchor-nav a {
    transition: none;
  }
}
<<<END>>>