.page-about {
  --about-body: rgba(244, 251, 247, 0.76);
  --about-body-strong: rgba(244, 251, 247, 0.88);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-about .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-block: clamp(20px, 4vw, 36px) clamp(48px, 7vw, 92px);
  background:
    radial-gradient(120% 90% at 88% -18%, rgba(53, 242, 192, 0.14), transparent 62%),
    radial-gradient(80% 60% at 4% 8%, rgba(255, 210, 63, 0.06), transparent 60%),
    var(--ink);
}

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(26px, 4vw, 46px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--dim);
}

.page-about .breadcrumb a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-about .breadcrumb a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

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

.page-about .hero-grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-about .hero-main h1 {
  margin: 14px 0 0;
  font-size: clamp(34px, 6.6vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 15em;
}

.page-about .hero-main h1 .accent {
  color: var(--cyan);
}

.page-about .hero-lede {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 40em;
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.9;
  color: var(--about-body-strong);
}

.page-about .hero-side {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-2);
  padding: clamp(20px, 3vw, 28px);
  box-shadow: var(--shadow-lift);
}

.page-about .side-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--dim);
}

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

.page-about .hero-facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .hero-facts li:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-about .hero-facts .mono {
  font-size: clamp(20px, 2.6vw, 26px);
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-about .fact-label {
  font-size: 13px;
  color: var(--mint);
  text-align: right;
}

.page-about .hero-side-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 18px;
  width: 100%;
  min-height: 44px;
}

.page-about .hero-figure {
  margin: clamp(32px, 5vw, 56px) 0 0;
}

.page-about .media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-2);
  box-shadow: var(--shadow-lift);
}

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

@media (min-width: 900px) {
  .page-about .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .hero-side {
    margin-top: 6px;
  }
}

/* ---------- 品牌历程 ---------- */
.page-about .about-story {
  padding-block: clamp(44px, 7vw, 88px);
  border-top: 1px solid var(--line);
}

.page-about .story-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-about .story-head h2 {
  margin: 12px 0 0;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  font-weight: 800;
  max-width: 14em;
}

.page-about .story-aside {
  font-size: 14px;
  line-height: 1.8;
  color: var(--dim);
  max-width: 26em;
  padding-left: 16px;
  border-left: 2px solid var(--line);
}

.page-about .story-body p {
  margin: 0 0 18px;
  font-size: clamp(16px, 1.7vw, 17px);
  line-height: 1.95;
  color: var(--about-body);
  max-width: 38em;
}

.page-about .story-body p:last-child {
  margin-bottom: 0;
}

@media (min-width: 900px) {
  .page-about .story-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: end;
  }

  .page-about .story-head {
    grid-column: 1 / 8;
  }

  .page-about .story-aside {
    grid-column: 9 / 13;
    padding-left: 20px;
    padding-bottom: 6px;
  }

  .page-about .story-body {
    grid-column: 1 / 9;
  }
}

/* ---------- 版本时间轴 ---------- */
.page-about .about-track {
  padding-block: clamp(44px, 7vw, 88px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-3), var(--ink));
}

.page-about .track-head h2 {
  margin: 12px 0 0;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  font-weight: 800;
  max-width: 18em;
}

.page-about .track-list {
  position: relative;
  list-style: none;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0;
}

.page-about .track-list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 14px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--yellow) 55%, var(--line));
}

.page-about .track-item {
  position: relative;
  padding-left: 34px;
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-about .track-item:last-child {
  margin-bottom: 0;
}

.page-about .track-node {
  position: absolute;
  left: 0;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  background: var(--ink-3);
  transition: background var(--t-mid), box-shadow var(--t-mid), border-color var(--t-fast);
}

.page-about .track-item:nth-child(even) .track-node {
  border-color: var(--yellow);
}

.page-about .track-item:hover .track-node,
.page-about .track-item:focus-within .track-node {
  background: var(--cyan);
  box-shadow: 0 0 0 6px rgba(53, 242, 192, 0.16);
}

.page-about .track-item:nth-child(even):hover .track-node,
.page-about .track-item:nth-child(even):focus-within .track-node {
  background: var(--yellow);
  box-shadow: 0 0 0 6px rgba(255, 210, 63, 0.16);
}

.page-about .track-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-about .track-meta .mono {
  font-size: clamp(18px, 2.4vw, 22px);
  color: var(--paper);
  letter-spacing: 0.01em;
}

.page-about .track-text {
  margin: 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-body);
}

@media (min-width: 880px) {
  .page-about .track-list {
    padding-left: 10px;
    max-width: 62em;
  }

  .page-about .track-item {
    padding-left: 46px;
  }

  .page-about .track-node {
    top: 8px;
    width: 18px;
    height: 18px;
  }

  .page-about .track-list::before {
    left: 9px;
  }
}

/* ---------- 内容团队 ---------- */
.page-about .about-team {
  padding-block: clamp(44px, 7vw, 88px);
  border-top: 1px solid var(--line);
}

.page-about .team-grid {
  align-items: start;
  row-gap: clamp(26px, 4vw, 40px);
}

.page-about .team-intro h2 {
  margin: 12px 0 16px;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  font-weight: 800;
}

.page-about .team-intro p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-body);
}

.page-about .team-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.page-about .team-card {
  display: block;
  padding: 22px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--ink-2);
  transition: border-color var(--t-fast), background var(--t-fast), transform var(--t-fast);
}

.page-about .team-card:hover,
.page-about .team-card:focus-within {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-about .team-num {
  display: block;
  font-size: clamp(34px, 4.6vw, 48px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-about .team-label {
  display: block;
  margin-top: 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .team-note {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--dim);
  transition: color var(--t-fast);
}

.page-about .team-card:hover .team-note,
.page-about .team-card:focus-within .team-note {
  color: var(--mint);
}

.page-about .team-figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

/* ---------- 数据覆盖 ---------- */
.page-about .about-data {
  padding-block: clamp(44px, 7vw, 88px);
  border-top: 1px solid var(--line);
  background: var(--ink-2);
}

.page-about .data-head h2 {
  margin: 12px 0 16px;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  font-weight: 800;
  max-width: 17em;
}

.page-about .data-head p {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-body);
}

.page-about .data-stats {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 20px;
  background: var(--ink);
  transition: background var(--t-fast);
}

.page-about .stat:hover {
  background: var(--ink-3);
}

.page-about .stat-num {
  font-size: clamp(26px, 3.6vw, 36px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .stat-num .stat-unit {
  font-size: 0.5em;
  margin-left: 3px;
  color: var(--yellow);
}

.page-about .stat-label {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--dim);
}

@media (min-width: 620px) {
  .page-about .data-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners {
  padding-block: clamp(44px, 7vw, 88px);
  border-top: 1px solid var(--line);
}

.page-about .partners-grid {
  align-items: start;
  row-gap: clamp(26px, 4vw, 40px);
}

.page-about .partners-copy h2 {
  margin: 12px 0 16px;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  font-weight: 800;
}

.page-about .partners-copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-body);
}

.page-about .partners-copy .partners-note {
  font-size: 14px;
  color: var(--dim);
  border-left: 2px solid var(--yellow);
  padding-left: 14px;
}

.page-about .pill-cloud {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
}

.page-about .pill {
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  padding: 9px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.01em;
  color: var(--mint);
  background: transparent;
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast);
}

.page-about .pill:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(53, 242, 192, 0.08);
}

.page-about .partners-link {
  margin: 18px 0 0;
}

.page-about .partners-link a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 192, 0.4);
  padding-bottom: 2px;
  transition: border-color var(--t-fast), color var(--t-fast);
}

.page-about .partners-link a:hover {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

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

@media (min-width: 900px) {
  .page-about .partners-figure {
    margin-top: 6px;
  }
}

/* ---------- 行业认可 ---------- */
.page-about .about-honor {
  padding-block: clamp(44px, 7vw, 88px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink), var(--ink-3));
}

.page-about .about-honor h2 {
  margin: 12px 0 clamp(24px, 3.5vw, 36px);
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  font-weight: 800;
  max-width: 16em;
}

.page-about .honor-quote {
  margin: 0 0 clamp(24px, 3.5vw, 36px);
  padding: clamp(20px, 3vw, 30px);
  border-left: 3px solid var(--yellow);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: linear-gradient(90deg, rgba(255, 210, 63, 0.09), transparent 78%);
}

.page-about .honor-quote p {
  margin: 0;
  max-width: 44em;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.9;
  color: var(--about-body-strong);
}

.page-about .honor-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .honor-item {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  transition: background var(--t-fast), padding-left var(--t-fast);
}

.page-about .honor-item:hover {
  background: rgba(53, 242, 192, 0.05);
  padding-left: 10px;
}

.page-about .honor-index {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.page-about .honor-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 服务与联系 ---------- */
.page-about .about-service {
  padding-block: clamp(44px, 7vw, 88px);
  border-top: 1px solid var(--line);
}

.page-about .service-bar {
  display: grid;
  gap: clamp(22px, 3vw, 32px);
}

.page-about .service-copy h2 {
  margin: 12px 0 14px;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  font-weight: 800;
}

.page-about .service-copy p {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-body);
}

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

.page-about .service-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
}

.page-about .svc-contact {
  display: grid;
  gap: 12px;
  margin-top: clamp(24px, 3.5vw, 36px);
}

.page-about .svc-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--ink-2);
  transition: border-color var(--t-fast);
}

.page-about .svc-item:hover {
  border-color: rgba(53, 242, 192, 0.55);
}

.page-about .svc-label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--dim);
}

.page-about .svc-value {
  flex: 1 1 200px;
  font-size: 14px;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-about .svc-copy {
  flex: 0 0 auto;
  min-height: 32px;
  padding: 5px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast);
}

.page-about .svc-copy:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(53, 242, 192, 0.08);
}

.page-about .svc-copy[data-copied="true"] {
  border-color: var(--cyan);
  color: var(--on-accent);
  background: var(--cyan);
}

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

@media (min-width: 880px) {
  .page-about .service-bar {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-about .service-actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
<<<END>>>