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

.page-about h1,
.page-about h2,
.page-about h3 {
  margin: 0;
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-about h1 {
  font-size: clamp(32px, 6vw, 58px);
  font-weight: 900;
  line-height: 1.1;
}

.page-about h2 {
  font-size: clamp(25px, 3.6vw, 38px);
  font-weight: 900;
}

.page-about h3 {
  font-size: clamp(18px, 1.8vw, 21px);
  font-weight: 800;
}

.page-about p {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.page-about .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-about .eyebrow {
  margin-bottom: 14px;
}

.page-about .eyebrow--light {
  color: var(--terracotta-soft);
}

.page-about .about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* —— 首屏 —— */
.page-about .about-hero {
  padding: clamp(18px, 3vw, 32px) 0 clamp(52px, 7vw, 84px);
}

.page-about .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 30px);
}

.page-about .about-dek {
  margin-top: 18px;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.95;
  max-width: 34em;
}

.page-about .about-hero-media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: var(--crease);
  border-radius: 3px 20px 3px 3px;
  background: var(--sand);
}

.page-about .about-hero-media::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 36px;
  height: 36px;
  background: linear-gradient(225deg, var(--paper) 0 50%, rgba(36, 28, 23, 0.16) 50%);
}

.page-about .about-hero-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

.page-about .about-hero-note {
  font-size: 14px;
  align-self: end;
}

.page-about .about-hero-note p {
  font-size: 14px;
  line-height: 1.85;
}

/* —— 工作方式 —— */
.page-about .about-method {
  border-top: var(--crease);
  padding: clamp(48px, 6vw, 84px) 0;
}

.page-about .about-method-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-method-dek {
  margin-top: 16px;
  max-width: 32em;
}

.page-about .method-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
  counter-reset: step;
}

.page-about .method-list > li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  padding-top: 18px;
  border-top: var(--crease);
}

.page-about .method-list > li::before {
  content: "0" counter(step);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--terracotta);
  padding-top: 6px;
}

.page-about .method-list h3 {
  margin-bottom: 8px;
}

.page-about .method-list p {
  font-size: 15.5px;
}

.page-about .about-method-note {
  font-size: 14px;
  align-self: start;
}

.page-about .about-method-note p {
  font-size: 14px;
  line-height: 1.9;
}

/* —— 覆盖长卷 —— */
.page-about .coverage {
  background: var(--slate);
  color: var(--paper);
  padding: clamp(50px, 7vw, 88px) 0 clamp(42px, 6vw, 70px);
  position: relative;
}

.page-about .coverage::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(246, 240, 228, 0.14) 1px, transparent 1px);
  background-size: 9px 9px;
  opacity: 0.5;
}

.page-about .coverage h2,
.page-about .coverage .coverage-dek,
.page-about .coverage .coverage-foot-text {
  position: relative;
}

.page-about .coverage h2 {
  color: var(--paper);
}

.page-about .coverage-dek {
  margin-top: 16px;
  max-width: 40em;
  color: rgba(246, 240, 228, 0.84);
}

.page-about .city-track {
  position: relative;
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0 var(--gutter) 18px;
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-about .city-track::-webkit-scrollbar {
  height: 6px;
}

.page-about .city-track::-webkit-scrollbar-thumb {
  background: rgba(232, 168, 124, 0.6);
  border-radius: 99px;
}

.page-about .city-track::-webkit-scrollbar-track {
  background: rgba(246, 240, 228, 0.12);
}

.page-about .city-card {
  flex: 0 0 190px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 16px 18px;
  background: rgba(246, 240, 228, 0.07);
  border: 1px solid rgba(246, 240, 228, 0.24);
  border-radius: 3px 16px 3px 3px;
  transition: background 0.25s var(--ease-out), border-color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

.page-about .city-card:hover,
.page-about .city-card:focus-within {
  background: rgba(232, 168, 124, 0.2);
  border-color: var(--terracotta-soft);
  transform: translateY(-2px);
}

.page-about .city-name {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 900;
  color: var(--paper);
  letter-spacing: 0.02em;
}

.page-about .city-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--terracotta-soft);
}

.page-about .coverage-foot {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: clamp(18px, 3vw, 30px);
  position: relative;
  align-items: center;
}

.page-about .grid-matrix {
  width: 100%;
  max-width: 330px;
  aspect-ratio: 12 / 8;
  background-image: radial-gradient(circle, var(--terracotta-soft) 0 2.2px, transparent 2.8px);
  background-size: calc(100% / 12) calc(100% / 8);
  background-position: 1px 1px;
}

.page-about .coverage-count {
  font-size: clamp(19px, 2.2vw, 25px);
  font-weight: 800;
  color: var(--paper);
  margin-bottom: 10px;
}

.page-about .coverage-count .mono {
  color: var(--terracotta-soft);
  font-size: 1.15em;
}

.page-about .coverage-foot-text p {
  color: rgba(246, 240, 228, 0.82);
  max-width: 36em;
}

/* —— 来路 —— */
.page-about .about-journey {
  padding: clamp(50px, 7vw, 88px) 0;
}

.page-about .about-journey-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
}

.page-about .about-journey-intro p {
  margin-top: 16px;
  max-width: 32em;
}

.page-about .route-wrap {
  display: grid;
  gap: 4px;
  border-left: var(--crease);
  padding-left: 26px;
}

.page-about .route-item {
  position: relative;
  padding: 14px 0;
  border-bottom: var(--crease);
}

.page-about .route-item:last-child {
  border-bottom: 0;
}

.page-about .route-item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 24px;
  width: 9px;
  height: 9px;
  background: var(--terracotta);
  transform: rotate(45deg);
}

.page-about .route-item summary {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-right: 26px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: clamp(17px, 1.8vw, 19px);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.5;
}

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

.page-about .route-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--terracotta);
}

.page-about .route-item[open] summary::after {
  content: "\2212";
}

.page-about .route-year {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--indigo);
}

.page-about .route-item p {
  margin-top: 10px;
  font-size: 15.5px;
  max-width: 36em;
}

/* —— 团队 —— */
.page-about .about-team {
  border-top: var(--crease);
  padding: clamp(50px, 7vw, 88px) 0;
}

.page-about .about-team-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-about .about-team-text p {
  margin-top: 16px;
  max-width: 34em;
}

.page-about .team-dots {
  width: 100%;
  max-width: 360px;
  aspect-ratio: 13 / 2;
  margin-top: 26px;
  background-image: radial-gradient(circle, var(--terracotta) 0 2.8px, transparent 3.4px);
  background-size: calc(100% / 13) calc(100% / 2);
  background-position: 1px 1px;
}

.page-about .team-legend {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-about .about-team-media {
  margin: 0;
  overflow: hidden;
  border: var(--crease);
  border-radius: 18px 3px 3px 3px;
  background: var(--sand);
}

.page-about .about-team-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* —— 协作 —— */
.page-about .about-partners {
  background: var(--sand);
  padding: clamp(50px, 7vw, 88px) 0;
}

.page-about .partners-dek {
  margin-top: 16px;
  max-width: 36em;
}

.page-about .partners-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .partners-media {
  margin: 0;
  overflow: hidden;
  border: var(--crease);
  border-radius: 3px 3px 18px 3px;
  background: var(--paper);
}

.page-about .partners-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-about .partner-card {
  background: var(--paper);
  border: var(--crease);
  border-radius: 3px 16px 3px 3px;
  padding: clamp(18px, 2.4vw, 26px);
}

.page-about .partner-card h3 {
  margin-bottom: 10px;
}

.page-about .partner-card p {
  font-size: 15.5px;
}

/* —— 收束 —— */
.page-about .about-proof {
  background: var(--slate-deep);
  color: var(--paper);
  padding: clamp(54px, 8vw, 96px) 0;
}

.page-about .about-proof h2 {
  color: var(--paper);
}

.page-about .about-proof > .wrap > p {
  margin-top: 16px;
  max-width: 36em;
  color: rgba(246, 240, 228, 0.82);
}

.page-about .proof-figures {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin: 30px 0 6px;
}

.page-about .proof-item {
  border-top: 1px solid rgba(232, 168, 124, 0.5);
  padding-top: 16px;
}

.page-about .proof-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(38px, 6vw, 60px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--terracotta-soft);
}

.page-about .proof-label {
  display: block;
  margin-top: 10px;
  font-size: 15px;
  color: rgba(246, 240, 228, 0.78);
}

.page-about .about-proof .btn--ghost {
  color: var(--paper);
  border-color: rgba(246, 240, 228, 0.5);
}

.page-about .about-proof .btn--ghost:hover {
  color: var(--terracotta-soft);
  border-color: var(--terracotta-soft);
}

.page-about .proof-links {
  margin-top: 30px;
  padding-top: 20px;
  border-top: var(--crease);
  font-size: 15px;
  color: rgba(246, 240, 228, 0.78);
}

.page-about .proof-links a {
  color: var(--terracotta-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 168, 124, 0.5);
}

.page-about .proof-links a:hover {
  border-bottom-color: var(--terracotta-soft);
}

/* —— 响应式 —— */
@media (min-width: 760px) {
  .page-about .coverage-foot {
    grid-template-columns: 330px minmax(0, 1fr);
    gap: 34px;
  }

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

  .page-about .partners-media {
    grid-column: 1 / -1;
  }

  .page-about .proof-figures {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }
}

@media (min-width: 920px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 4fr) minmax(0, 3fr);
    align-items: start;
  }

  .page-about .about-method-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .about-journey-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-about .about-team-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-about .about-journey-intro {
    position: sticky;
    top: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .city-card {
    transition: background 0.2s linear, border-color 0.2s linear;
  }

  .page-about .city-card:hover,
  .page-about .city-card:focus-within {
    transform: none;
  }
}
<<<END>>>