.page-about {
  --about-rail-w: 190px;
  --about-gap: clamp(2rem, 5vw, 4.5rem);
  --about-pad: clamp(2.5rem, 6vw, 4.5rem);
  background: var(--ink);
  color: var(--text);
}

.page-about .breadcrumb {
  margin: 0;
  padding: 1.5rem 0 0;
}

.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--fs-12);
  letter-spacing: .06em;
}

.page-about .breadcrumb-list li + li::before {
  content: "/";
  margin-right: .5rem;
  color: var(--line-strong);
}

.page-about .breadcrumb-list a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.page-about .breadcrumb-list a:hover,
.page-about .breadcrumb-list a[aria-current="page"] {
  color: var(--gold);
}

/* ---------- 页首 ---------- */
.page-about .about-head {
  padding-block: clamp(2rem, 5vw, 3.25rem) clamp(1.75rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line-strong);
}

.page-about .about-head h1 {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(2rem, 6.2vw, 4rem);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--ivory);
  margin: 0 0 1.25rem;
  max-width: 20ch;
}

.page-about .about-head .lede {
  max-width: 64ch;
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.9;
  color: var(--text-soft);
}

/* ---------- 总体栅格 ---------- */
.page-about .about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

@media (min-width: 1000px) {
  .page-about .about-layout {
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    gap: var(--about-gap);
    align-items: start;
  }
}

/* ---------- 左侧章节目录 ---------- */
.page-about .about-rail {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: .9rem 0 1rem;
  background: var(--ink);
}

.page-about .chapter-nav-title {
  margin: 0;
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-about .about-nav-list {
  list-style: none;
  margin: .6rem 0 0;
  padding: 0;
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-nav-list::-webkit-scrollbar {
  display: none;
}

.page-about .about-nav-list a {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  white-space: nowrap;
  padding: .38rem .75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-soft);
  font-size: var(--fs-12);
  text-decoration: none;
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-about .about-nav-list a:hover {
  border-color: var(--line-strong);
  color: var(--gold-bright);
}

.page-about .about-nav-num {
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  color: var(--gold);
  letter-spacing: .08em;
}

@media (min-width: 1000px) {
  .page-about .about-rail {
    position: sticky;
    top: calc(var(--header-h) + 1.75rem);
    border-top: 1px solid var(--line-strong);
    border-bottom: 0;
    padding: .2rem 0 0;
    margin: 0;
  }

  .page-about .about-nav-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    margin-top: 1rem;
  }

  .page-about .about-nav-list li {
    border-bottom: 1px solid var(--line);
  }

  .page-about .about-nav-list a {
    width: 100%;
    border: 0;
    border-radius: 0;
    padding: .8rem 0;
    font-size: var(--fs-14);
    background: none;
  }

  .page-about .about-nav-list a[aria-current="true"] {
    color: var(--gold-bright);
  }

  .page-about .about-nav-list a[aria-current="true"] .about-nav-num {
    color: var(--gold-bright);
  }
}

/* ---------- 章节通用 ---------- */
.page-about .about-chapter {
  position: relative;
  padding-block: var(--about-pad);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-about .chapter-head {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  margin-bottom: clamp(1.5rem, 3.5vw, 2.5rem);
}

.page-about .chapter-num {
  font-family: var(--f-display);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  line-height: .9;
  letter-spacing: .02em;
  color: rgba(200, 162, 74, .3);
  display: block;
}

.page-about .chapter-head-text .eyebrow {
  margin: 0 0 .35rem;
  color: var(--gold);
  font-size: var(--fs-12);
  letter-spacing: .2em;
}

.page-about .chapter-title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.6vw, 2.15rem);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--ivory);
  margin: 0;
  max-width: 24ch;
}

.page-about .about-lede-slim {
  max-width: 62ch;
  margin: 0 0 clamp(1.5rem, 3vw, 2rem);
  color: var(--text-soft);
  line-height: 1.9;
}

/* ---------- 正文 ---------- */
.page-about .prose p {
  margin: 0 0 1.15rem;
  max-width: 68ch;
  line-height: 1.9;
  color: var(--text-soft);
}

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

.page-about .prose a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-about .prose a:hover {
  color: var(--gold-bright);
  border-color: var(--gold-bright);
}

/* ---------- 图文分栏 ---------- */
.page-about .about-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 2.75rem);
}

@media (min-width: 900px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .85fr);
    align-items: start;
    gap: clamp(2rem, 4vw, 4rem);
  }
}

.page-about .about-split-main {
  min-width: 0;
}

/* ---------- 图片容器 ---------- */
.page-about .media-frame {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-2);
  position: relative;
}

.page-about .media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(251, 248, 242, .04);
}

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

.page-about .about-fig--origin img {
  aspect-ratio: 1440 / 900;
}

.page-about .about-fig--timeline img {
  aspect-ratio: 1200 / 600;
}

.page-about .about-fig--team img {
  aspect-ratio: 1 / 1;
  filter: saturate(.9);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.6rem;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: .65rem;
  bottom: .5rem;
  width: 1px;
  background: linear-gradient(180deg, rgba(200, 162, 74, .65), rgba(200, 162, 74, .06));
}

.page-about .about-tl-item {
  position: relative;
  padding-bottom: clamp(1.75rem, 3.5vw, 2.5rem);
}

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

.page-about .about-tl-item::before {
  content: "";
  position: absolute;
  left: -1.6rem;
  top: .5rem;
  width: 9px;
  height: 9px;
  margin-left: -4px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--gold);
  transition: background var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.page-about .about-tl-item:hover::before {
  background: var(--gold-bright);
  box-shadow: 0 0 0 4px rgba(200, 162, 74, .16);
}

.page-about .about-tl-year {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: var(--fs-14);
  letter-spacing: .2em;
  color: var(--gold);
  padding: .14rem .55rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-about .about-tl-item:hover .about-tl-year {
  border-color: var(--line-strong);
  color: var(--gold-bright);
}

.page-about .about-tl-card h3 {
  font-family: var(--f-display);
  font-size: var(--fs-20);
  line-height: 1.4;
  color: var(--ivory);
  margin: .7rem 0 .5rem;
}

.page-about .about-tl-card p {
  margin: 0;
  max-width: 62ch;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-about .about-tl-item--media {
  padding-bottom: clamp(1.75rem, 3.5vw, 2.5rem);
}

.page-about .about-tl-item--media::before {
  background: var(--jade);
  border-color: var(--jade);
}

/* ---------- 团队卡片 ---------- */
.page-about .team-list {
  display: grid;
  gap: .75rem;
}

.page-about .team-card {
  border: 1px solid var(--line);
  background: var(--ink-2);
  transition: border-color var(--t-mid) var(--ease);
}

.page-about .team-card[open] {
  border-color: var(--line-strong);
}

.page-about .team-card summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: 1rem 1.15rem;
  font-family: var(--f-display);
  font-size: var(--fs-16);
  color: var(--ivory);
  transition: color var(--t-fast) var(--ease);
}

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

.page-about .team-card summary:hover {
  color: var(--gold-bright);
}

.page-about .team-card summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: var(--fs-20);
  line-height: 1;
  color: var(--gold);
}

.page-about .team-card[open] summary::after {
  content: "–";
}

.page-about .team-idx {
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--jade);
}

.page-about .team-card-body {
  padding: 0 1.15rem 1.2rem;
  border-top: 1px solid var(--line);
  margin-top: .1rem;
}

.page-about .team-card-body p {
  margin: .9rem 0 0;
  line-height: 1.85;
  color: var(--text-soft);
  font-size: var(--fs-14);
}

/* ---------- 状态面板 ---------- */
.page-about .about-panel {
  margin-top: clamp(1.75rem, 3.5vw, 2.5rem);
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  background: linear-gradient(180deg, rgba(28, 28, 36, .92), rgba(11, 11, 13, .92));
  padding: clamp(1.25rem, 3vw, 2rem);
}

.page-about .about-panel .panel-title {
  margin: 0 0 1rem;
  font-family: var(--f-display);
  font-size: var(--fs-20);
  color: var(--ivory);
  letter-spacing: .01em;
}

.page-about .status-list {
  display: grid;
}

.page-about .status-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: .3rem;
  padding: .9rem 0;
  border-bottom: 1px solid var(--line);
}

.page-about .status-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .status-row:first-child {
  padding-top: 0;
}

.page-about .status-key {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: var(--fs-14);
  color: var(--gold);
  letter-spacing: .04em;
}

.page-about .status-value {
  color: var(--text-soft);
  font-size: var(--fs-14);
  line-height: 1.8;
}

.page-about .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex: none;
}

.page-about .status-dot--gold {
  background: var(--gold);
}

.page-about .status-dot--live {
  background: var(--cinnabar);
  box-shadow: 0 0 0 3px rgba(194, 64, 46, .18);
}

@media (min-width: 640px) {
  .page-about .status-row {
    grid-template-columns: minmax(0, 160px) minmax(0, 1fr);
    gap: 1.25rem;
    align-items: baseline;
  }
}

/* ---------- 合作矩阵 ---------- */
.page-about .about-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 720px) {
  .page-about .about-matrix {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .about-cell {
  background: var(--ink-2);
  padding: clamp(1.25rem, 3vw, 1.85rem);
  transition: background var(--t-mid) var(--ease);
}

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

.page-about .about-cell-num {
  display: block;
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  letter-spacing: .2em;
  color: var(--jade);
  margin-bottom: .7rem;
}

.page-about .about-cell h3 {
  font-family: var(--f-display);
  font-size: var(--fs-20);
  line-height: 1.4;
  color: var(--ivory);
  margin: 0 0 .6rem;
}

.page-about .about-cell p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-about .about-eco-note {
  margin-top: clamp(1.5rem, 3vw, 2rem);
  padding-top: clamp(1.25rem, 3vw, 1.75rem);
  border-top: 1px solid var(--line);
}

.page-about .about-eco-note p {
  margin: 0 0 1rem;
  max-width: 66ch;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-about .about-inline-cta {
  margin: 0 !important;
}

/* ---------- 规模数字 ---------- */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-stat {
  background: var(--ink-2);
  padding: clamp(1.25rem, 3vw, 1.85rem);
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.page-about .about-stat-num {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(2rem, 5.5vw, 3.25rem);
  line-height: 1;
  color: var(--gold-bright);
  letter-spacing: -.01em;
}

.page-about .about-stat-unit {
  font-family: var(--f-body);
  font-size: var(--fs-14);
  font-weight: 400;
  color: var(--gold);
  margin-left: .35rem;
  letter-spacing: .04em;
}

.page-about .about-stat-label {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--text-soft);
}

.page-about .about-reach-text {
  margin-top: clamp(1.75rem, 3.5vw, 2.5rem);
}

/* ---------- 长期承诺 ---------- */
.page-about .commit-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.page-about .commit-item {
  background: var(--ink);
  padding: clamp(1.35rem, 3vw, 2rem) clamp(1.15rem, 2.5vw, 1.75rem);
  border-left: 2px solid transparent;
  transition: border-color var(--t-mid) var(--ease), background var(--t-mid) var(--ease);
}

.page-about .commit-item:hover {
  border-left-color: var(--cinnabar);
  background: var(--ink-2);
}

.page-about .commit-title {
  margin: 0 0 .6rem;
  font-family: var(--f-display);
  font-size: var(--fs-20);
  color: var(--ivory);
}

.page-about .commit-text {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--text-soft);
}

.page-about .commit-text a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-about .commit-text a:hover {
  color: var(--gold-bright);
  border-color: var(--gold-bright);
}

.page-about .about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  margin-top: clamp(1.75rem, 3.5vw, 2.5rem);
}

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion: no-preference) {
  .page-about .about-tl-item,
  .page-about .about-cell,
  .page-about .commit-item,
  .page-about .about-stat {
    transition: background var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</parameter>
</invoke>
</result>