.page-about {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .about-crumb {
  padding-top: clamp(0.9rem, 2.5vw, 1.6rem);
}

/* ---------- eyebrow / 标题组 ---------- */
.page-about .about-eyebrow {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--ink-55);
}

.page-about .about-eyebrow-num {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.08em;
}

.page-about .about-section-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.7rem, 5.6vw, 2.9rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-about .about-section-title--light {
  color: var(--cream);
}

.page-about .about-lede {
  margin: 0;
  max-width: 52ch;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-about .about-lede--light {
  color: var(--cream-80);
}

.page-about .about-head {
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-top: clamp(1rem, 3vw, 2rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.page-about .about-hero-inner {
  padding-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-about .about-hero-title {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.3rem, 8.4vw, 5rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.page-about .about-hero-lede {
  margin: 0 0 clamp(1.5rem, 4vw, 2.25rem);
  max-width: 50ch;
  font-size: clamp(0.98rem, 2.2vw, 1.12rem);
  line-height: 1.85;
  color: var(--ink-70);
}

.page-about .about-hero-facts {
  list-style: none;
  margin: 0;
  padding: 1px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ink-12);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-about .about-hero-facts li {
  background: var(--cream);
  padding: 0.95rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.page-about .about-fact-num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 4.4vw, 1.85rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--orange);
}

.page-about .about-fact-label {
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--ink-55);
}

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

.page-about .about-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border-radius: var(--radius-l);
}

/* ---------- 起源（深青绿） ---------- */
.page-about .about-origin {
  background: var(--teal);
  color: var(--cream);
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.page-about .about-origin .about-eyebrow {
  color: var(--cream-60);
}

.page-about .about-origin .about-eyebrow-num {
  color: var(--lime);
}

.page-about .about-origin-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-about .about-origin-body p {
  margin: 0 0 1rem;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--cream-80);
}

.page-about .about-origin-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

.page-about .about-origin-list li {
  display: grid;
  gap: 0.3rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--cream-18);
}

.page-about .about-origin-term {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--sand);
}

.page-about .about-origin-desc {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--cream-88);
}

/* ---------- 服务原则（浅橙砂） ---------- */
.page-about .about-principles {
  background: var(--sand);
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.page-about .about-principles .about-eyebrow {
  color: rgba(36, 31, 29, 0.6);
}

.page-about .about-principle-list {
  display: grid;
  gap: 0.75rem;
}

.page-about .about-principle {
  background: var(--cream);
  border: 1px solid rgba(36, 31, 29, 0.1);
  border-radius: var(--radius-m);
  overflow: hidden;
  transition: box-shadow 240ms var(--ease), transform 240ms var(--ease);
}

.page-about .about-principle[open] {
  box-shadow: 0 12px 28px rgba(101, 21, 47, 0.14);
}

.page-about .about-principle summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.9rem;
  padding: 1.05rem 1.15rem;
  cursor: pointer;
  list-style: none;
}

.page-about .about-principle summary::-webkit-details-marker {
  display: none;
}

.page-about .about-principle summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--orange);
}

.page-about .about-principle[open] summary::after {
  content: "–";
}

.page-about .about-principle-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--berry);
}

.page-about .about-principle-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1rem, 2.8vw, 1.15rem);
  line-height: 1.45;
  color: var(--ink);
  min-width: 0;
}

.page-about .about-principle-body {
  padding: 0 1.15rem 1.2rem;
}

.page-about .about-principle-body p {
  margin: 0 0 0.85rem;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-about .about-principle-result {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--ink-12);
  color: var(--ink) !important;
  font-weight: 500;
}

/* ---------- 团队（靛紫） ---------- */
.page-about .about-team {
  background: var(--indigo);
  color: var(--cream);
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.page-about .about-team .about-eyebrow {
  color: var(--cream-60);
}

.page-about .about-team .about-eyebrow-num {
  color: var(--lime);
}

.page-about .about-team-lede {
  margin: 0;
  max-width: 52ch;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--cream-80);
}

.page-about .about-team-grid {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.8rem;
}

.page-about .about-team-petal {
  --petal: var(--orange);
  position: relative;
  background: var(--cream-10);
  border: 1px solid var(--cream-18);
  border-radius: var(--radius-m);
  padding: 1.15rem 1.1rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  align-items: flex-start;
}

.page-about .about-team-petal::before {
  content: "";
  width: 2rem;
  height: 0.32rem;
  border-radius: 99px;
  background: var(--petal);
}

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

.page-about .about-team-petal--berry {
  --petal: var(--berry);
}

.page-about .about-team-petal--lime {
  --petal: var(--lime);
}

.page-about .about-team-petal--sand {
  --petal: var(--sand);
}

.page-about .about-petal-idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--cream-60);
}

.page-about .about-petal-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--cream);
}

.page-about .about-team-petal p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--cream-80);
}

/* ---------- 协作区 ---------- */
.page-about .about-network {
  background: var(--cream);
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.page-about .about-region-grid {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.page-about .about-region {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.4rem;
  min-height: 6.25rem;
  padding: 0.9rem 0.85rem;
  border: 1px solid var(--ink-12);
  border-radius: var(--radius-s);
  background: linear-gradient(160deg, rgba(246, 198, 164, 0.5), var(--cream) 78%);
}

.page-about .about-region-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--ink);
}

.page-about .about-region-note {
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--ink-55);
}

/* ---------- 时间轴（深莓酒） ---------- */
.page-about .about-timeline {
  background: var(--wine);
  color: var(--cream);
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.page-about .about-timeline .about-eyebrow {
  color: var(--cream-60);
}

.page-about .about-timeline .about-eyebrow-num {
  color: var(--sand);
}

.page-about .about-timeline-figure {
  margin: 0 0 clamp(1.5rem, 4vw, 2.25rem);
}

.page-about .about-timeline-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  border-radius: var(--radius-m);
}

.page-about .about-timeline-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.65rem;
}

.page-about .about-stage {
  min-width: 0;
}

.page-about .about-stage-node {
  height: 100%;
  background: var(--cream-10);
  border: 1px solid var(--cream-18);
  border-radius: var(--radius-m);
  transition: background 240ms var(--ease);
}

.page-about .about-stage-node[open] {
  background: var(--cream-18);
}

.page-about .about-stage-node summary {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1rem 1rem 0.9rem;
  cursor: pointer;
  list-style: none;
}

.page-about .about-stage-node summary::-webkit-details-marker {
  display: none;
}

.page-about .about-stage-num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--sand);
}

.page-about .about-stage-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.45;
  color: var(--cream);
}

.page-about .about-stage-node p {
  margin: 0;
  padding: 0 1rem 1.1rem;
  font-size: 0.88rem;
  line-height: 1.78;
  color: var(--cream-80);
}

.page-about .about-timeline-link {
  margin: 1.5rem 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--cream-80);
}

.page-about .about-inline-link {
  color: var(--sand);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- 交付保障 ---------- */
.page-about .about-assurance {
  background: var(--cream);
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.page-about .about-assurance-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-about .about-assurance-copy p {
  margin: 0 0 1rem;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--ink-70);
  max-width: 48ch;
}

.page-about .about-assurance-link {
  display: inline-block;
  margin-bottom: 1.5rem;
}

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

.page-about .about-assurance-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 4;
  object-fit: cover;
  border-radius: var(--radius-m);
}

.page-about .about-assurance-board {
  display: grid;
  gap: 0.7rem;
  align-content: start;
}

.page-about .about-board-kicker {
  margin: 0 0 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--ink-55);
}

.page-about .about-board-card {
  --board: var(--teal);
  background: var(--cream);
  border: 1px solid var(--ink-12);
  border-left: 5px solid var(--board);
  border-radius: var(--radius-s);
  padding: 1rem 1.1rem;
}

.page-about .about-board-card--teal {
  --board: var(--teal);
}

.page-about .about-board-card--berry {
  --board: var(--berry);
}

.page-about .about-board-card--indigo {
  --board: var(--indigo);
}

.page-about .about-board-card--lime {
  --board: var(--lime);
}

.page-about .about-board-card h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--ink);
}

.page-about .about-board-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--ink-70);
}

/* ---------- 客户结果（深青绿） ---------- */
.page-about .about-proof {
  background: var(--teal);
  color: var(--cream);
  padding: clamp(2.5rem, 6vw, 5rem) 0;
}

.page-about .about-proof .about-eyebrow {
  color: var(--cream-60);
}

.page-about .about-proof .about-eyebrow-num {
  color: var(--lime);
}

.page-about .about-proof-lede {
  margin: 0;
  max-width: 50ch;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--cream-80);
}

.page-about .about-proof-stats {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 0.9rem;
}

.page-about .about-proof-stats li {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--cream-32);
  min-width: 0;
}

.page-about .about-proof-num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 5.2vw, 2.15rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--sand);
}

.page-about .about-proof-label {
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--cream-60);
}

.page-about .about-proof-note {
  margin: 1.25rem 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--cream-80);
}

.page-about .about-proof-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(1.5rem, 4vw, 2rem);
}

.page-about .about-inline-link:focus-visible,
.page-about .about-principle summary:focus-visible,
.page-about .about-stage-node summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-about .about-origin-list li {
    grid-template-columns: 8.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 1rem;
  }

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

@media (min-width: 768px) {
  .page-about .about-hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-about .about-origin-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-about .about-origin-head {
    position: sticky;
    top: 6rem;
  }

  .page-about .about-assurance-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    align-items: start;
  }

  .page-about .about-timeline-track {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-about .about-region-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

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

  .page-about .about-hero-inner {
    max-width: 1000px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-principle,
  .page-about .about-stage-node {
    transition: none;
  }
}
<<<END>>>