.page-about {
  --about-pine-tint: rgba(31, 58, 46, 0.06);
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 顶部面包屑 ---------- */
.page-about .about-topbar {
  padding-top: 108px;
}
@media (min-width: 900px) {
  .page-about .about-topbar {
    padding-top: 132px;
  }
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 28px 0 56px;
}
@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 40px 0 88px;
  }
}
.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  align-items: end;
}
@media (min-width: 960px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: 64px;
  }
}
.page-about .about-h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.6vw, 74px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--pine);
  margin: 16px 0 0;
  max-width: 15em;
}
.page-about .about-lede {
  margin-top: 24px;
  max-width: 34em;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.8;
}
@media (min-width: 900px) {
  .page-about .about-lede {
    font-size: 17px;
  }
}
.page-about .about-hero-figure {
  aspect-ratio: 11 / 14;
  border-radius: var(--r-lg);
  overflow: hidden;
  margin: 0;
  background: linear-gradient(160deg, var(--peach), var(--amber-soft));
}
.page-about .about-hero-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
@media (min-width: 960px) {
  .page-about .about-hero-figure {
    margin-bottom: -24px;
  }
}
.page-about .about-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}
.page-about .about-stat {
  flex: 1 1 132px;
  min-width: 0;
  padding: 16px 18px;
  border-radius: var(--r-sm);
  background: var(--peach);
  border: 1px solid var(--line);
}
.page-about .about-stat .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  line-height: 1.1;
  color: var(--pine);
}
.page-about .about-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.5;
}

/* ---------- 通用章节头 ---------- */
.page-about .about-head {
  max-width: 720px;
  margin-bottom: 40px;
}
.page-about .about-num {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--pine-mid);
}
.page-about .about-h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 4.2vw, 40px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--pine);
  margin: 0;
}
.page-about .about-head-lede {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.8;
  max-width: 32em;
}

/* ---------- 01 整理什么 ---------- */
.page-about .about-what-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}
@media (min-width: 900px) {
  .page-about .about-what-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    gap: 56px;
    align-items: start;
  }
}
.page-about .about-what-text p {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 34em;
}
.page-about .about-what-text p:last-child {
  margin-bottom: 0;
}
.page-about .about-what-card {
  padding: 26px 22px;
  border-radius: var(--r-md);
  background: linear-gradient(180deg, #FFFFFF 0%, var(--peach) 100%);
  border: 1px solid var(--line);
}
.page-about .about-what-card-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--pine);
}
.page-about .about-what-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .about-what-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 9px 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}
.page-about .about-what-list li:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-about .about-what-dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-radius: 2px;
  background: var(--amber);
}
.page-about .about-what-card .data-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-strong);
  color: var(--muted);
}

/* ---------- 02 发展历程 ---------- */
.page-about .about-era {
  position: relative;
  padding-left: 0;
}
.page-about .about-era::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 16px;
  bottom: 16px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--amber) 0%, rgba(31, 58, 46, 0.22) 42%, rgba(31, 58, 46, 0.08) 100%);
}
.page-about .about-era-item {
  position: relative;
  padding: 0 0 44px 44px;
}
.page-about .about-era-item:last-child {
  padding-bottom: 0;
}
.page-about .about-era-item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 20px;
  height: 20px;
  border-radius: 5px;
  background: var(--amber);
  box-shadow: 0 0 0 5px var(--paper);
}
.page-about .about-era-year {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 30px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--amber);
  -webkit-text-stroke: 0;
}
.page-about .about-era-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.45;
  color: var(--pine);
}
.page-about .about-era-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 36em;
}
@media (min-width: 860px) {
  .page-about .about-era::before {
    left: 15px;
  }
  .page-about .about-era-item {
    display: grid;
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
    padding-left: 56px;
    padding-bottom: 52px;
  }
  .page-about .about-era-item::before {
    left: 5px;
    top: 6px;
    width: 22px;
    height: 22px;
  }
  .page-about .about-era-year {
    font-size: clamp(38px, 4vw, 54px);
    color: var(--pine);
    opacity: 0.9;
    margin-top: -4px;
  }
}

/* ---------- 03 服务内容 ---------- */
.page-about .about-services-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}
@media (min-width: 960px) {
  .page-about .about-services-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.9fr);
    gap: 48px;
    align-items: start;
  }
}
.page-about .about-svc {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: #FFFFFF;
  overflow: hidden;
  transition: border-color 180ms ease-out, transform 180ms ease-out;
}
.page-about .about-svc + .about-svc {
  margin-top: 10px;
}
.page-about .about-svc:hover {
  border-color: var(--line-strong);
}
.page-about .about-svc[open] {
  background: linear-gradient(180deg, #FFFFFF 0%, var(--peach) 100%);
}
.page-about .about-svc summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 22px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--pine);
}
.page-about .about-svc summary::-webkit-details-marker {
  display: none;
}
.page-about .about-svc summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--pine-mid);
}
.page-about .about-svc[open] summary::after {
  content: "–";
}
.page-about .about-svc summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: -4px;
  border-radius: var(--r-md);
}
.page-about .about-svc-title {
  min-width: 0;
}
.page-about .about-svc-body {
  padding: 0 22px 22px 22px;
}
.page-about .about-svc-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 36em;
}
.page-about .about-svc-meta {
  margin-top: 12px !important;
  padding-top: 10px;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: 12.5px !important;
  color: var(--muted) !important;
}
.page-about .about-services-aside {
  display: grid;
  gap: 16px;
  align-content: start;
}
.page-about .about-services-figure {
  aspect-ratio: 1 / 1;
  border-radius: var(--r-lg);
  overflow: hidden;
  margin: 0;
  background: linear-gradient(150deg, var(--amber-soft), var(--peach));
}
.page-about .about-services-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-about .about-services-note {
  padding: 20px 22px;
  border-radius: var(--r-md);
  background: var(--about-pine-tint);
  border-left: 4px solid var(--amber);
}
.page-about .about-services-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 04 团队 ---------- */
.page-about .about-team-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}
@media (min-width: 920px) {
  .page-about .about-team-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 64px;
    align-items: center;
  }
}
.page-about .about-ring-wrap {
  display: grid;
  gap: 22px;
  justify-items: center;
}
.page-about .about-ring {
  position: relative;
  width: min(280px, 74vw);
  aspect-ratio: 1 / 1;
}
.page-about .about-ring svg {
  width: 100%;
  height: 100%;
  display: block;
}
.page-about .about-ring-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  pointer-events: none;
}
.page-about .about-ring-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 46px;
  line-height: 1;
  color: var(--pine);
}
.page-about .about-ring-unit {
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--muted);
}
.page-about .about-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  width: 100%;
  max-width: 300px;
}
.page-about .about-legend li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--ink-soft);
}
.page-about .about-legend-swatch {
  flex: none;
  width: 14px;
  height: 14px;
  border-radius: 4px;
}
.page-about .about-legend-swatch--amber { background: var(--amber); }
.page-about .about-legend-swatch--pine { background: var(--pine-mid); }
.page-about .about-legend-swatch--mist { background: #8FA79A; }

.page-about .about-team-copy p {
  margin: 0 0 18px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 34em;
}
.page-about .about-team-copy p:last-child {
  margin-bottom: 0;
}
.page-about .about-quote {
  padding-left: 20px;
  border-left: 4px solid var(--amber);
  font-family: var(--font-display);
  font-size: 18px !important;
  line-height: 1.7 !important;
  color: var(--pine) !important;
  max-width: 26em !important;
}

/* ---------- 05 归档工序 ---------- */
.page-about .about-method-panel {
  background: var(--pine);
  border-radius: var(--r-lg);
  padding: 36px 22px 40px;
  color: #F4F0E6;
}
@media (min-width: 900px) {
  .page-about .about-method-panel {
    padding: 60px 56px 56px;
  }
}
.page-about .about-method-head {
  margin-bottom: 32px;
}
.page-about .about-num--light {
  color: var(--amber-soft);
}
.page-about .about-h2--light {
  color: #FBF8F2;
}
.page-about .about-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
@media (min-width: 700px) {
  .page-about .about-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1100px) {
  .page-about .about-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }
}
.page-about .about-step {
  position: relative;
  padding: 22px 20px 24px;
  border-radius: var(--r-sm);
  background: rgba(251, 248, 242, 0.06);
  border: 1px solid rgba(248, 212, 147, 0.24);
}
.page-about .about-step .num-badge {
  background: var(--amber);
  color: var(--pine-deep);
}
.page-about .about-step-title {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  color: #FBF8F2;
}
.page-about .about-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(244, 240, 230, 0.8);
}
.page-about .about-method-foot {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-top: 36px;
  padding-top: 32px;
  border-top: 1px solid rgba(248, 212, 147, 0.22);
}
@media (min-width: 900px) {
  .page-about .about-method-foot {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 40px;
    align-items: center;
  }
}
.page-about .about-method-figure {
  aspect-ratio: 3 / 2;
  border-radius: var(--r-md);
  overflow: hidden;
  margin: 0;
  background: rgba(251, 248, 242, 0.1);
}
.page-about .about-method-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-about .about-method-foot-text .about-step-title {
  margin-top: 0;
}
.page-about .about-method-foot-text p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(244, 240, 230, 0.82);
  max-width: 36em;
}
.page-about .about-method-note {
  margin-top: 14px !important;
  padding-top: 12px;
  border-top: 1px dashed rgba(248, 212, 147, 0.3);
  font-family: var(--font-mono);
  font-size: 12.5px !important;
  color: var(--amber-soft) !important;
}

/* ---------- 06 资料协作 ---------- */
.page-about .about-partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
@media (min-width: 820px) {
  .page-about .about-partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}
.page-about .about-partner {
  padding: 24px 22px 26px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: #FFFFFF;
  transition: transform 180ms ease-out, border-color 180ms ease-out;
}
.page-about .about-partner:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}
.page-about .about-partner-tag {
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 12px;
  border-radius: var(--r-pill);
  background: var(--peach);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--pine-mid);
}
.page-about .about-partner-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  color: var(--pine);
}
.page-about .about-partner p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}
.page-about .about-partner-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  align-items: baseline;
  justify-content: space-between;
  margin-top: 32px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.page-about .about-partner-strip p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 34em;
}
.page-about .about-partner-strip .data-note {
  color: var(--muted);
}

/* ---------- 下一步入口 ---------- */
.page-about .about-next {
  padding-bottom: 96px;
}
.page-about .about-next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding: 32px 24px;
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, var(--peach) 0%, var(--amber-soft) 100%);
}
@media (min-width: 900px) {
  .page-about .about-next-grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 48px;
    padding: 44px 48px;
    align-items: start;
  }
}
.page-about .about-next-copy p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 26em;
}
.page-about .about-next-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-about .about-next-links a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 16px;
  padding: 16px 18px;
  border-radius: var(--r-sm);
  background: rgba(251, 248, 242, 0.72);
  border: 1px solid rgba(31, 58, 46, 0.14);
  text-decoration: none;
  color: var(--pine);
  transition: background 180ms ease-out, border-color 180ms ease-out;
}
.page-about .about-next-links a:hover {
  background: var(--paper);
  border-color: var(--pine-mid);
}
.page-about .about-next-links a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}
.page-about .about-next-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
}
.page-about .about-next-desc {
  font-size: 13px;
  color: var(--muted);
  flex: 1 1 200px;
  min-width: 0;
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-svc,
  .page-about .about-partner,
  .page-about .about-next-links a {
    transition: none;
  }
  .page-about .about-partner:hover {
    transform: none;
  }
}
<<<END>>>