.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 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1.24;
  margin: 0;
}

.page-about h2 {
  font-size: clamp(24px, 3.6vw, 40px);
  margin-bottom: var(--sp-3);
}

.page-about h3 {
  font-size: 20px;
  letter-spacing: 0.01em;
}

.page-about p {
  margin: 0 0 var(--sp-2);
  line-height: 1.85;
  font-size: 16px;
}

.page-about .section-label {
  margin-bottom: var(--sp-2);
  color: var(--ink-soft);
}

.page-about .about-label-light {
  color: rgba(255, 255, 255, 0.62);
}

/* ---------- 顶部主题带 ---------- */

.page-about .about-band {
  position: relative;
  background: var(--indigo);
  color: var(--white);
  overflow: hidden;
  padding: calc(var(--header-h) + var(--sp-4)) 0 0;
}

.page-about .about-band-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-about .about-band-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.page-about .about-band::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(16, 26, 46, 0.55) 0%, rgba(27, 42, 74, 0.94) 72%);
  pointer-events: none;
}

.page-about .about-band-inner {
  position: relative;
  z-index: 2;
  padding-bottom: var(--sp-6);
}

.page-about .breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 var(--sp-4);
  padding: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

.page-about .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(255, 255, 255, 0.35);
}

.page-about .breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--gold);
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--white);
}

.page-about .about-band-label {
  display: inline-block;
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 4px 10px;
  color: var(--white);
  letter-spacing: 0.08em;
}

.page-about h1 {
  font-size: clamp(28px, 5.2vw, 56px);
  max-width: 20em;
  margin: var(--sp-3) 0 var(--sp-3);
  text-wrap: balance;
}

.page-about .about-lead {
  max-width: 42em;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.84);
}

.page-about .about-band-facts {
  list-style: none;
  margin: var(--sp-5) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4) var(--sp-6);
}

.page-about .about-band-facts li {
  border-top: 2px solid rgba(255, 255, 255, 0.28);
  padding-top: var(--sp-2);
  min-width: 140px;
}

.page-about .about-band-facts li:nth-child(1) {
  border-top-color: var(--cyan);
}

.page-about .about-band-facts li:nth-child(2) {
  border-top-color: var(--yellow);
}

.page-about .about-fact-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .about-fact-key {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.66);
}

/* 经幡色带 */

.page-about .about-ribbon {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  height: 6px;
}

.page-about .about-ribbon span:nth-child(1) { background: var(--cyan); }
.page-about .about-ribbon span:nth-child(2) { background: var(--paper); }
.page-about .about-ribbon span:nth-child(3) { background: var(--red); }
.page-about .about-ribbon span:nth-child(4) { background: var(--green); }
.page-about .about-ribbon span:nth-child(5) { background: var(--yellow); }

/* ---------- 通用分区 ---------- */

.page-about .about-section {
  padding: var(--sp-6) 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-origin {
  border-top: 0;
}

/* ---------- 起点 ---------- */

.page-about .about-split {
  display: grid;
  gap: var(--sp-5);
}

.page-about .about-split-main p {
  max-width: 40em;
}

.page-about .about-split-side {
  display: grid;
  gap: var(--sp-3);
  align-content: start;
}

.page-about .about-side-card {
  background: var(--sand);
  border-left: 3px solid var(--indigo);
  padding: var(--sp-3);
}

.page-about .about-side-card-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  letter-spacing: 0.06em;
  margin-bottom: var(--sp-1);
  color: var(--indigo);
}

.page-about .about-side-card p {
  font-size: 15px;
  margin: 0;
  color: var(--ink-soft);
}

.page-about .about-side-links {
  margin-top: var(--sp-1);
}

/* ---------- 整理方式 ---------- */

.page-about .about-method {
  background: var(--indigo);
  color: var(--white);
  border-top: 0;
}

.page-about .about-method-grid {
  display: grid;
  gap: var(--sp-5);
}

.page-about .about-method-text p {
  color: rgba(255, 255, 255, 0.78);
  max-width: 40em;
}

.page-about .about-method-text h2 {
  color: var(--white);
}

.page-about .about-method-list {
  list-style: none;
  margin: var(--sp-4) 0 var(--sp-4);
  padding: 0;
}

.page-about .about-method-item {
  display: grid;
  grid-template-columns: 4px minmax(0, 1fr);
  gap: var(--sp-2);
  padding: var(--sp-2) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.page-about .about-method-item:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.page-about .about-method-bar {
  display: block;
  width: 4px;
  height: 100%;
  min-height: 32px;
  background: var(--white);
}

.page-about .about-method-item--cyan .about-method-bar { background: var(--cyan); }
.page-about .about-method-item--white .about-method-bar { background: var(--paper); }
.page-about .about-method-item--red .about-method-bar { background: var(--red); }
.page-about .about-method-item--green .about-method-bar { background: var(--green); }
.page-about .about-method-item--yellow .about-method-bar { background: var(--yellow); }

.page-about .about-method-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 15px;
  letter-spacing: 0.04em;
  margin: 0 0 4px;
  color: var(--white);
}

.page-about .about-method-desc {
  margin: 0;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
}

.page-about .about-method-tail {
  padding-left: var(--sp-3);
  border-left: 1px solid rgba(255, 255, 255, 0.28);
  font-size: 15px;
  color: rgba(255, 255, 255, 0.8);
}

.page-about .about-method-figure {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
}

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

.page-about .about-method-figure .figure-caption {
  padding: var(--sp-2);
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  border-left: 2px solid var(--gold);
}

/* ---------- 合作网络 ---------- */

.page-about .about-network-head {
  max-width: 46em;
  margin-bottom: var(--sp-5);
}

.page-about .about-network-head p {
  color: var(--ink-soft);
}

.page-about .about-network-grid {
  display: grid;
  gap: var(--sp-4);
}

.page-about .about-network-figure {
  border: 1px solid var(--line);
  background: var(--sand);
  margin: 0;
}

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

.page-about .about-network-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 0 0 var(--sp-3);
}

.page-about .about-network-stats > div {
  background: var(--paper);
  padding: var(--sp-3);
}

.page-about .about-network-stats dt {
  font-size: 13px;
  color: var(--grey);
  letter-spacing: 0.04em;
}

.page-about .about-network-stats dd {
  margin: var(--sp-1) 0 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 28px);
  color: var(--indigo);
}

.page-about .about-network-text p {
  color: var(--ink-soft);
  font-size: 15px;
}

/* ---------- 团队 ---------- */

.page-about .about-team-head {
  max-width: 46em;
  margin-bottom: var(--sp-4);
}

.page-about .about-team-head p {
  color: var(--ink-soft);
}

.page-about .about-team-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-team-card {
  background: var(--paper);
  padding: var(--sp-3);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: background-color 200ms var(--ease);
}

.page-about .about-team-card:hover {
  background: var(--sand);
}

.page-about .about-team-index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--grey);
}

.page-about .about-team-card h3 {
  color: var(--indigo);
}

.page-about .about-team-role {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  margin: 0 0 4px;
}

.page-about .about-team-card p:last-child {
  font-size: 15px;
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.8;
}

.page-about .about-team-note {
  margin-top: var(--sp-3);
  font-size: 15px;
  color: var(--ink-soft);
}

.page-about .about-team-note a {
  color: var(--indigo);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-team-note a:hover,
.page-about .about-team-note a:focus-visible {
  color: var(--cyan);
}

/* ---------- 发展历程 ---------- */

.page-about .about-timeline {
  background: var(--night);
  color: var(--white);
  border-top: 0;
  padding-bottom: var(--sp-5);
}

.page-about .about-timeline-head {
  max-width: 46em;
  margin-bottom: var(--sp-3);
}

.page-about .about-timeline-head h2 {
  color: var(--white);
}

.page-about .about-timeline-head p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
}

.page-about .about-tl-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.28) transparent;
}

.page-about .about-tl-scroll::-webkit-scrollbar {
  height: 6px;
}

.page-about .about-tl-scroll::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.28);
}

.page-about .about-tl {
  position: relative;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 252px;
  gap: var(--sp-4);
  list-style: none;
  margin: 0;
  padding: var(--sp-4) var(--gutter) var(--sp-4);
  width: max-content;
  min-width: 100%;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: rgba(255, 255, 255, 0.2);
  pointer-events: none;
}

.page-about .about-tl-node {
  position: relative;
  display: grid;
  grid-template-rows: 1fr 1fr;
  min-height: 320px;
}

.page-about .about-tl-card {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-top: 3px solid var(--tl-tone, var(--gold));
  background: rgba(255, 255, 255, 0.035);
  padding: var(--sp-2);
  grid-row: 1;
  align-self: end;
  margin-bottom: 30px;
}

.page-about .about-tl-node:nth-child(even) .about-tl-card {
  grid-row: 2;
  align-self: start;
  margin-bottom: 0;
  margin-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  border-bottom: 3px solid var(--tl-tone, var(--gold));
}

.page-about .about-tl-node--start { --tl-tone: var(--cyan); }
.page-about .about-tl-node--grow { --tl-tone: var(--green); }
.page-about .about-tl-node--hub { --tl-tone: var(--paper); }
.page-about .about-tl-node--split { --tl-tone: var(--yellow); }
.page-about .about-tl-node--now { --tl-tone: var(--gold); }

.page-about .about-tl-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--tl-tone, var(--gold));
  margin-bottom: 4px;
}

.page-about .about-tl-card h3 {
  font-size: 17px;
  color: var(--white);
  margin-bottom: var(--sp-1);
}

.page-about .about-tl-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.72);
}

.page-about .about-tl-dot {
  position: absolute;
  left: 0;
  top: 50%;
  width: 10px;
  height: 10px;
  margin-top: -5px;
  background: var(--tl-tone, var(--gold));
  z-index: 1;
}

/* ---------- 我们在意的事 ---------- */

.page-about .about-values h2 {
  max-width: 18em;
}

.page-about .about-values-grid {
  display: grid;
  gap: var(--sp-4);
  margin-top: var(--sp-4);
}

.page-about .about-value {
  border-top: 3px solid var(--indigo);
  padding-top: var(--sp-2);
}

.page-about .about-value:nth-child(2) {
  border-top-color: var(--cyan);
}

.page-about .about-value:nth-child(3) {
  border-top-color: var(--gold);
}

.page-about .about-value-index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--grey);
}

.page-about .about-value h3 {
  font-size: 19px;
  margin: var(--sp-1) 0 var(--sp-1);
  color: var(--indigo);
}

.page-about .about-value p {
  font-size: 15px;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- 结尾引导 ---------- */

.page-about .about-cta {
  background: var(--sand);
  border-top: 1px solid var(--line);
  padding-bottom: 0;
}

.page-about .about-cta-inner {
  display: grid;
  gap: var(--sp-3);
  padding-bottom: var(--sp-6);
}

.page-about .about-cta-text h2 {
  font-size: clamp(22px, 3.2vw, 32px);
  margin-bottom: var(--sp-2);
}

.page-about .about-cta-text p {
  color: var(--ink-soft);
  max-width: 40em;
  margin: 0;
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.page-about .about-cta-actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.page-about .about-ribbon--foot {
  height: 4px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-about .about-team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .about-network-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--sp-5);
    align-items: start;
  }

  .page-about .about-cta-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

@media (min-width: 900px) {
  .page-about .about-band-inner {
    padding-bottom: var(--sp-7);
  }

  .page-about .about-section {
    padding: var(--sp-7) 0;
  }

  .page-about .about-timeline {
    padding-bottom: var(--sp-6);
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: var(--sp-6);
    align-items: start;
  }

  .page-about .about-method-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: var(--sp-6);
    align-items: start;
  }

  .page-about .about-method-figure {
    position: sticky;
    top: calc(var(--header-h-slim) + var(--sp-3));
  }

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

  .page-about .about-tl {
    grid-auto-columns: 280px;
  }
}

@media (min-width: 1200px) {
  .page-about .about-network-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: var(--sp-6);
  }
}

@media (max-width: 719px) {
  .page-about .about-band-facts {
    gap: var(--sp-3);
  }

  .page-about .about-band-facts li {
    min-width: 120px;
    flex: 1 1 40%;
  }

  .page-about .about-network-stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-about .about-cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-about .about-cta-actions .btn {
    justify-content: center;
  }
}

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