.page-about {
  --about-gap: 20px;
  --about-card-bg: #FFF9EE;
  --about-ink-soft: rgba(18, 59, 45, .62);
  --about-white-soft: rgba(255, 249, 238, .72);
  background: var(--paper);
  color: var(--black);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
}

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-about .shell {
  width: 100%;
  padding-left: 20px;
  padding-right: 20px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 16px 0 0;
  overflow: hidden;
  background-image:
    radial-gradient(120% 90% at 88% -10%, rgba(31, 191, 117, .26), transparent 58%),
    radial-gradient(90% 70% at -10% 110%, rgba(139, 77, 255, .18), transparent 55%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 140px;
  background-image: repeating-linear-gradient(115deg, rgba(255, 249, 238, .055) 0 1px, transparent 1px 15px);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero-shell {
  position: relative;
  z-index: 1;
}

.page-about .about-crumb .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--about-white-soft);
}

.page-about .about-crumb .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(255, 249, 238, .38);
}

.page-about .about-crumb .breadcrumb-link {
  color: var(--kiwi);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-about .about-crumb .breadcrumb-link:hover,
.page-about .about-crumb .breadcrumb-link:focus-visible {
  border-bottom-color: var(--kiwi);
}

.page-about .about-hero-grid {
  display: grid;
  gap: 26px;
  padding: 24px 0 32px;
}

.page-about .about-eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--brand);
}

.page-about .about-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 8.4vw, 68px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--warmwhite);
  transform: rotate(-1.4deg);
  transform-origin: left center;
}

.page-about .about-lede {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.7;
  color: var(--about-white-soft);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-index {
  border: 1px solid var(--line-light);
  border-radius: var(--r-md);
  background: var(--about-ink-soft);
  padding: 16px 16px 10px;
}

.page-about .about-index-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--lemon);
}

.page-about .about-index-list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
}

.page-about .about-index-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 4px;
  border-bottom: 1px dashed var(--line-light);
  font-size: 14px;
  color: var(--warmwhite);
  text-decoration: none;
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.page-about .about-index-list li:last-child a {
  border-bottom: 0;
}

.page-about .about-index-list a:hover,
.page-about .about-index-list a:focus-visible {
  color: var(--kiwi);
  padding-left: 10px;
}

.page-about .about-index-list span {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--brand);
}

.page-about .about-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 14px;
  margin: 0;
  padding: 22px 0 34px;
  list-style: none;
  border-top: 1px solid var(--line-light);
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(24px, 6vw, 38px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--lemon);
}

.page-about .about-stat-label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--about-white-soft);
}

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

.page-about .about-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px 16px;
  align-items: start;
  margin-bottom: 26px;
}

.page-about .about-num {
  display: block;
  padding-top: 8px;
  border-top: 3px solid currentColor;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 32px;
  line-height: 1;
  letter-spacing: -.05em;
  color: var(--brand);
}

.page-about .about-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 5.4vw, 42px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--black);
}

.page-about .about-sub {
  margin: 10px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .surface-ink .about-num {
  color: var(--kiwi);
}

.page-about .surface-ink .about-title {
  color: var(--warmwhite);
}

.page-about .surface-ink .about-sub {
  color: var(--about-white-soft);
}

.page-about .about-caption {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--card-bg, var(--warmwhite));
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mist);
}

/* ---------- 01 起点 ---------- */
.page-about .about-figure {
  margin: 0 0 30px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink);
}

.page-about .about-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-about .about-figure .about-caption {
  background: var(--warmwhite);
}

.page-about .about-origin-grid {
  display: grid;
  gap: 24px;
}

.page-about .about-origin-text p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--black);
}

.page-about .about-origin-lead {
  font-size: 18px;
  line-height: 1.7;
  padding-left: 14px;
  border-left: 3px solid var(--brand);
}

.page-about .about-lights {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-about .about-light {
  display: grid;
  gap: 6px;
  padding: 15px 16px 17px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--about-card-bg);
}

.page-about .about-light-dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
}

.page-about .about-light-dot--ink {
  background: var(--ink);
}

.page-about .about-light-dot--brand {
  background: var(--brand);
}

.page-about .about-light-dot--orange {
  background: var(--orange);
}

.page-about .about-light-title {
  margin: 0;
  font-size: 15px;
  font-weight: 800;
  color: var(--black);
}

.page-about .about-light-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 02 内容体系 ---------- */
.page-about .about-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

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

.page-about .about-serie {
  display: grid;
  gap: 9px;
  align-content: start;
  padding: 20px 18px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--brand);
  border-radius: var(--r-md);
  background: var(--about-card-bg);
}

.page-about .about-serie:nth-child(2) {
  border-left-color: var(--lemon);
}

.page-about .about-serie:nth-child(3) {
  border-left-color: var(--berry);
}

.page-about .about-serie:nth-child(4) {
  border-left-color: var(--orange);
}

.page-about .about-serie.is-filtered-out {
  display: none;
}

.page-about .about-serie-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-about .about-serie-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.35;
  color: var(--black);
}

.page-about .about-serie-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(18, 24, 21, .82);
}

.page-about .about-serie-metric {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 6px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--mist);
}

.page-about .about-serie-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 24px;
  line-height: 1;
  color: var(--orange);
}

/* ---------- 03 团队 ---------- */
.page-about .about-team {
  background-image: radial-gradient(100% 70% at 100% 0%, rgba(31, 191, 117, .18), transparent 62%);
}

.page-about .about-team-grid {
  display: grid;
  gap: 26px;
  margin-bottom: 30px;
}

.page-about .about-team-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--about-white-soft);
}

.page-about .about-flow {
  margin: 22px 0 0;
  padding: 0 0 0 20px;
  list-style: none;
  display: grid;
  gap: 16px;
  border-left: 1px dashed rgba(168, 224, 95, .4);
}

.page-about .about-flow li {
  position: relative;
  display: grid;
  gap: 4px;
}

.page-about .about-flow li::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--kiwi);
  box-shadow: 0 0 0 4px rgba(168, 224, 95, .16);
}

.page-about .about-flow strong {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--warmwhite);
}

.page-about .about-flow span {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--about-white-soft);
}

.page-about .about-team-media {
  margin: 0;
  border: 1px solid var(--line-light);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--midnight);
}

.page-about .about-team-media img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-team-media .about-caption {
  border-top-color: var(--line-light);
  background: var(--midnight);
  color: rgba(255, 249, 238, .62);
}

.page-about .about-roles {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .about-role {
  padding: 16px 16px 18px;
  border: 1px solid var(--line-light);
  border-radius: var(--r-md);
  background: var(--about-ink-soft);
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-about .about-role-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 34px;
  line-height: 1;
  color: var(--lemon);
}

.page-about .about-role-title {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--warmwhite);
}

.page-about .about-role-text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--about-white-soft);
}

/* ---------- 04 时间线 ---------- */
.page-about .about-timeline-media {
  position: relative;
  margin: 0 0 26px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink);
}

.page-about .about-timeline-media img {
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: .82;
}

.page-about .about-timeline-media .about-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  border-top: 0;
  background: linear-gradient(180deg, rgba(11, 35, 28, 0), rgba(11, 35, 28, .88));
  color: var(--warmwhite);
}

.page-about .about-track {
  margin: 0 0 0 6px;
  padding: 0 0 0 20px;
  list-style: none;
  border-left: 1px solid var(--line);
  display: grid;
  gap: 10px;
}

.page-about .about-node {
  position: relative;
}

.page-about .about-node::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 18px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--warmwhite);
  border: 2px solid var(--brand);
}

.page-about .about-node--now::before {
  background: var(--orange);
  border-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 90, 54, .18);
}

.page-about .about-node details {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--about-card-bg);
  overflow: hidden;
}

.page-about .about-node summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 13px 15px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-node summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--mist);
}

.page-about .about-node details[open] summary::after {
  content: "−";
  color: var(--orange);
}

.page-about .about-node-year {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--orange);
}

.page-about .about-node-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--black);
}

.page-about .about-node-body {
  padding: 0 15px 15px;
}

.page-about .about-node-body p {
  margin: 0;
  padding-top: 11px;
  border-top: 1px dashed var(--line);
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(18, 24, 21, .82);
}

.page-about .about-node--now details {
  border-color: var(--midnight);
  background: var(--ink);
}

.page-about .about-node--now .about-node-title {
  color: var(--warmwhite);
}

.page-about .about-node--now .about-node-year {
  color: var(--lemon);
}

.page-about .about-node--now .about-node-body p {
  border-top-color: var(--line-light);
  color: var(--about-white-soft);
}

/* ---------- 05 服务规模 ---------- */
.page-about .about-scale {
  background-image: radial-gradient(90% 60% at 0% 0%, rgba(139, 77, 255, .2), transparent 58%);
}

.page-about .about-scale-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line-light);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--line-light);
}

.page-about .about-scale-cell {
  display: grid;
  gap: 6px;
  align-content: start;
  padding: 16px 14px 18px;
  background: rgba(18, 59, 45, .92);
}

.page-about .about-scale-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 5vw, 32px);
  line-height: 1.05;
  color: var(--lemon);
}

.page-about .about-scale-cell:nth-child(3n) .about-scale-num {
  color: var(--kiwi);
}

.page-about .about-scale-label {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--about-white-soft);
}

.page-about .about-scale-note {
  margin: 22px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--brand);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--about-white-soft);
}

/* ---------- 06 原则与联系 ---------- */
.page-about .about-principle-grid {
  display: grid;
  gap: 20px;
}

.page-about .about-cadence {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 11px;
}

.page-about .about-cadence li {
  display: grid;
  gap: 5px;
  padding: 15px 16px 17px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--about-card-bg);
}

.page-about .about-cadence-tag {
  justify-self: start;
  padding: 3px 9px;
  border-radius: var(--r-pill);
  background: rgba(168, 224, 95, .45);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--ink);
}

.page-about .about-cadence-title {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--black);
}

.page-about .about-cadence-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--mist);
}

.page-about .about-connect {
  display: grid;
  gap: 4px;
  align-content: start;
  padding: 22px 18px 20px;
  border-radius: var(--r-lg);
  background: var(--ink);
  color: var(--warmwhite);
}

.page-about .about-connect-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  color: var(--warmwhite);
}

.page-about .about-connect-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 11px 0;
  border-top: 1px solid var(--line-light);
}

.page-about .about-connect-label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--kiwi);
}

.page-about .about-connect-value {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--warmwhite);
  word-break: break-all;
}

.page-about .about-connect-text {
  flex: 1 1 200px;
  min-width: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--about-white-soft);
}

.page-about .about-connect-row--plain {
  align-items: flex-start;
}

.page-about .about-copy {
  border-color: var(--line-light);
  color: var(--lemon);
  background: transparent;
}

.page-about .about-copy.is-copied {
  color: var(--kiwi);
}

.page-about .about-connect-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-about .about-connect-actions .btn--ghost {
  border-color: var(--line-light);
  color: var(--warmwhite);
}

.page-about .about-connect-legal {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: rgba(255, 249, 238, .55);
}

.page-about .about-connect-legal a {
  color: var(--kiwi);
  text-decoration: none;
  border-bottom: 1px solid rgba(168, 224, 95, .5);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .shell {
    padding-left: 32px;
    padding-right: 32px;
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-series {
    gap: 16px;
  }

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: 22px;
  }

  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .72fr);
    gap: 56px;
    align-items: start;
    padding: 46px 0 42px;
  }

  .page-about .about-index {
    margin-top: 40px;
  }

  .page-about .about-stats {
    padding-bottom: 52px;
  }

  .page-about .about-section {
    padding: 88px 0;
  }

  .page-about .about-head {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 16px 26px;
    margin-bottom: 44px;
  }

  .page-about .about-num {
    font-size: 52px;
    padding-top: 12px;
  }

  .page-about .about-origin-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .85fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-lights {
    gap: 12px;
  }

  .page-about .about-series {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-serie:nth-child(even) {
    margin-top: 30px;
  }

  .page-about .about-team-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 44px;
    align-items: start;
    margin-bottom: 40px;
  }

  .page-about .about-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    padding: 22px 0 0;
    border-left: 0;
    border-top: 1px dashed rgba(168, 224, 95, .4);
  }

  .page-about .about-flow li {
    padding: 0 16px 0 0;
  }

  .page-about .about-flow li::before {
    left: 0;
    top: -27px;
  }

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

  .page-about .about-role:nth-child(2),
  .page-about .about-role:nth-child(4) {
    margin-top: 22px;
  }

  .page-about .about-timeline-media {
    margin-bottom: 34px;
  }

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

  .page-about .about-scale-cell {
    padding: 20px 18px 22px;
  }

  .page-about .about-principle-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 36px;
    align-items: start;
  }

  .page-about .about-connect {
    padding: 26px 24px 24px;
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero h1 {
    max-width: 16ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index-list a {
    transition: none;
  }

  .page-about .about-hero h1 {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>

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