.page-about {
  background: var(--ink);
  color: var(--ivory);
  font-family: var(--font-body);
  overflow-x: clip;
  position: relative;
}

/* ---------- 面包屑与首屏声明 ---------- */

.page-about .about-crumbs {
  padding-top: 22px;
}

.page-about .about-hero {
  padding-top: 26px;
  padding-bottom: clamp(30px, 5vw, 56px);
}

.page-about .about-hero .kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.page-about .about-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 6.4vw, 4.4rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  margin: 18px 0 22px;
  color: var(--ivory);
  max-width: 15ch;
}

.page-about .about-hero .lede {
  max-width: 46em;
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.85;
  color: rgba(251, 247, 236, 0.8);
}

/* ---------- 关键数字条 ---------- */

.page-about .about-stats {
  padding-bottom: clamp(36px, 6vw, 72px);
}

.page-about .stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 2px solid var(--rock);
  box-shadow: var(--shadow-card);
}

.page-about .stat {
  background: var(--char);
  padding: 20px 16px 22px;
  min-width: 0;
}

.page-about .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold);
  line-height: 1.1;
}

.page-about .stat-label {
  display: block;
  margin-top: 8px;
  font-size: 0.82rem;
  line-height: 1.5;
  color: rgba(251, 247, 236, 0.6);
}

@media (min-width: 720px) {
  .page-about .stat-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .stat {
    padding: 26px 22px 28px;
  }
}

/* ---------- 时间轴 ---------- */

.page-about .about-journey {
  background:
    repeating-linear-gradient(180deg, rgba(201, 214, 210, 0.05) 0 1px, transparent 1px 120px),
    var(--ink);
}

.page-about .timeline {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(
    to bottom,
    rgba(201, 214, 210, 0) 0%,
    rgba(201, 214, 210, 0.42) 6%,
    rgba(201, 214, 210, 0.42) 94%,
    rgba(201, 214, 210, 0) 100%
  );
}

.page-about .tl-item {
  position: relative;
  padding-left: 42px;
  margin-bottom: 30px;
}

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

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 20px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--moss);
  border: 2px solid var(--ink);
  box-shadow: 0 0 0 2px rgba(201, 214, 210, 0.55);
  z-index: 1;
}

.page-about .tl-item:nth-child(5)::before {
  background: var(--chip);
}

.page-about .tl-year {
  margin-bottom: 10px;
}

.page-about .tl-year__num {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-about .tl-hint {
  display: block;
  margin-top: 4px;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: rgba(251, 247, 236, 0.42);
  opacity: 0.85;
  transform: translateY(0);
  transition: opacity 0.22s ease, transform 0.22s ease, color 0.22s ease;
}

.page-about .tl-item:hover .tl-hint,
.page-about .tl-item:focus-within .tl-hint {
  opacity: 1;
  color: var(--gold);
  transform: translateY(-2px);
}

.page-about .tl-card {
  padding: 22px 20px 24px;
  border: 2px solid var(--rock);
  border-radius: var(--radius);
  background: var(--char);
  color: var(--ivory);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.page-about .tl-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}

.page-about .tl-card--light {
  background: var(--ivory);
  color: var(--char);
}

.page-about .tl-card h3 {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  font-weight: 700;
  line-height: 1.35;
  margin: 12px 0 12px;
  color: inherit;
}

.page-about .tl-card--light h3 {
  color: var(--char);
}

.page-about .tl-card p {
  margin: 0 0 14px;
  font-size: 0.96rem;
  line-height: 1.82;
  color: inherit;
  opacity: 0.86;
}

.page-about .tl-card--light p {
  color: #2c312c;
  opacity: 1;
}

.page-about .tl-card p:last-child {
  margin-bottom: 0;
}

.page-about .tl-ver {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}

.page-about .tl-ver .mono {
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 5.4vw, 2.7rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--chip);
}

.page-about .tl-card--light .tl-ver .mono {
  color: var(--chip);
}

.page-about .tl-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-about .tl-card .figure {
  margin: 18px 0 0;
}

.page-about .tl-card .figure__cap {
  color: inherit;
  opacity: 0.6;
  font-size: 0.8rem;
}

.page-about .tl-card--light .figure__cap {
  color: #55594f;
  opacity: 1;
}

@media (min-width: 880px) {
  .page-about .timeline::before {
    left: 118px;
  }
  .page-about .tl-item {
    display: grid;
    grid-template-columns: 100px minmax(0, 1fr);
    gap: 46px;
    padding-left: 0;
    margin-bottom: 44px;
  }
  .page-about .tl-item::before {
    left: 113px;
    top: 24px;
  }
  .page-about .tl-year {
    text-align: right;
    padding-top: 20px;
    margin-bottom: 0;
  }
  .page-about .tl-hint {
    font-size: 0.72rem;
  }
  .page-about .tl-card {
    padding: 28px 30px 30px;
  }
}

/* ---------- 团队 ---------- */

.page-about .about-team {
  background: linear-gradient(180deg, var(--ink) 0%, #1e3a31 26%, #1e3a31 74%, var(--ink) 100%);
}

.page-about .team-grid {
  align-items: start;
  row-gap: 28px;
}

.page-about .team-copy .section-title {
  margin-top: 14px;
}

.page-about .team-copy p {
  font-size: 0.98rem;
  line-height: 1.85;
  color: rgba(251, 247, 236, 0.82);
  margin: 0 0 14px;
}

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

.page-about .team-bars {
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 18px;
}

.page-about .team-bar {
  display: grid;
  grid-template-columns: 1fr 46px;
  grid-template-areas:
    "label num"
    "track track";
  gap: 8px 14px;
  align-items: center;
}

.page-about .team-bar__label {
  grid-area: label;
  font-size: 0.88rem;
  color: rgba(251, 247, 236, 0.75);
}

.page-about .team-bar__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gold);
  text-align: right;
}

.page-about .team-bar__track {
  grid-area: track;
  display: block;
  position: relative;
  height: 12px;
  background: rgba(12, 30, 25, 0.55);
  border: 1px solid rgba(201, 214, 210, 0.22);
  overflow: hidden;
}

.page-about .team-bar__fill {
  display: block;
  height: 100%;
  background: var(--moss);
}

.page-about .team-bar__fill--p52 { width: 52%; }
.page-about .team-bar__fill--p26 { width: 26%; }
.page-about .team-bar__fill--p22 { width: 22%; }
.page-about .team-bar__fill--chip { background: var(--chip); }
.page-about .team-bar__fill--gold { background: var(--gold); }

@media (min-width: 640px) {
  .page-about .team-bar {
    grid-template-columns: 108px minmax(0, 1fr) 46px;
    grid-template-areas: "label track num";
    gap: 14px;
  }
}

/* ---------- 服务版图 ---------- */

.page-about .about-map {
  background: var(--cream);
  color: var(--char);
}

.page-about .about-map .section-title,
.page-about .about-map .section-sub {
  color: var(--char);
}

.page-about .about-map .section-sub {
  opacity: 0.78;
  max-width: 52em;
  line-height: 1.8;
}

.page-about .about-map .index-tag {
  color: var(--clay);
}

.page-about .map-figure {
  margin: 28px 0 30px;
}

.page-about .map-figure .figure__cap {
  color: #4c5148;
}

.page-about .region-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-about .region-filter .filter-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  padding: 8px 14px;
  background: transparent;
  color: var(--char);
  border: 1.5px solid var(--rock);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-about .region-filter .filter-btn:hover {
  border-color: var(--gold);
  color: var(--clay);
}

.page-about .region-filter .filter-btn[aria-pressed="true"] {
  background: var(--ink);
  color: var(--ivory);
  border-color: var(--ink);
}

.page-about .region-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .region-card {
  padding: 22px 20px;
  background: var(--ivory);
  border: 2px solid var(--rock);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  min-width: 0;
}

.page-about .region-card h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--char);
}

.page-about .region-card p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.78;
  color: #343a34;
}

.page-about .region-card[data-hidden] {
  display: none;
}

.page-about .region-list .filter-empty {
  color: #4c5148;
  font-size: 0.9rem;
}

@media (min-width: 760px) {
  .page-about .region-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

/* ---------- 行业参与 ---------- */

.page-about .about-honors {
  background: var(--char);
}

.page-about .honor-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .honor-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 22px 20px;
  background: rgba(12, 30, 25, 0.72);
  border: 2px solid var(--rock);
  border-left: 4px solid var(--clay);
  border-radius: var(--radius);
  transition: border-left-color 0.2s ease, transform 0.2s ease;
}

.page-about .honor-item:hover {
  border-left-color: var(--gold);
  transform: translateX(3px);
}

.page-about .honor-year {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .honor-body h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  margin: 4px 0 8px;
  color: var(--ivory);
}

.page-about .honor-body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: rgba(251, 247, 236, 0.68);
}

@media (min-width: 680px) {
  .page-about .honor-item {
    grid-template-columns: 90px minmax(0, 1fr);
    gap: 26px;
    padding: 26px 28px;
    align-items: start;
  }
  .page-about .honor-year {
    padding-top: 4px;
  }
}

/* ---------- 结尾 ---------- */

.page-about .about-closing {
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-about .closing-card {
  border: 2px solid var(--rock);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  background:
    radial-gradient(120% 140% at 12% 0%, rgba(86, 113, 90, 0.5) 0%, rgba(12, 30, 25, 0) 62%),
    var(--char);
  padding: clamp(28px, 5vw, 54px) clamp(22px, 4vw, 48px);
  text-align: center;
}

.page-about .closing-card h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4.2vw, 2.5rem);
  font-weight: 800;
  margin: 0 0 14px;
  color: var(--ivory);
}

.page-about .closing-card p {
  max-width: 34em;
  margin: 0 auto 24px;
  font-size: 0.98rem;
  line-height: 1.82;
  color: rgba(251, 247, 236, 0.74);
}

.page-about .closing-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* ---------- 全局小修 ---------- */

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

.page-about .tl-card .figure__media img {
  aspect-ratio: 7 / 5;
}

.page-about .team-figure .figure__media img {
  aspect-ratio: 3 / 4;
}

.page-about .map-figure .figure__media img {
  aspect-ratio: 16 / 9;
  width: 100%;
}

@media (min-width: 880px) {
  .page-about .tl-card .figure__media img {
    aspect-ratio: 7 / 5;
  }
}
<<<END>>>