.page-about {
  --about-axis: rgba(216, 168, 90, 0.32);
  --about-grid-line: rgba(216, 168, 90, 0.09);
  display: block;
  background: var(--ink-void);
  font-family: var(--font-sans);
  color: var(--ink-text);
  -webkit-font-smoothing: antialiased;
}

.page-about .about-wrap {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.page-about .about-wrap--narrow {
  max-width: 860px;
}

@media (min-width: 768px) {
  .page-about .about-wrap {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }
}

.page-about .about-wrap--narrow {
  max-width: 860px;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 20px 0 56px;
  color: var(--fog);
  background:
    radial-gradient(95% 75% at 92% -12%, rgba(63, 143, 134, 0.24), transparent 58%),
    radial-gradient(80% 70% at 6% 112%, rgba(198, 58, 46, 0.18), transparent 62%),
    linear-gradient(168deg, var(--ink-void) 0%, var(--ink-night) 100%);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(to right, var(--about-grid-line) 0 1px, transparent 1px 92px),
    repeating-linear-gradient(to bottom, var(--about-grid-line) 0 1px, transparent 1px 92px);
  -webkit-mask-image: radial-gradient(85% 72% at 68% 18%, #000 0%, transparent 80%);
  mask-image: radial-gradient(85% 72% at 68% 18%, #000 0%, transparent 80%);
}

.page-about .breadcrumbs {
  position: relative;
  z-index: 2;
  font-size: 13px;
}

.page-about .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .breadcrumbs__item {
  color: var(--on-dark-dim);
}

.page-about .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 6px;
  color: rgba(216, 168, 90, 0.5);
}

.page-about .breadcrumbs__link {
  color: var(--on-dark-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-about .breadcrumbs__link:hover,
.page-about .breadcrumbs__link:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 34px;
  margin-top: 26px;
}

.page-about .about-hero__text {
  min-width: 0;
}

.page-about .about-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--cinnabar);
}

.page-about .about-eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.page-about .about-section--night .about-eyebrow,
.page-about .about-section--panel .about-eyebrow {
  color: var(--gold);
}

.page-about .about-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 3.7rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-about .about-lead {
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-muted);
}

.page-about .about-hero .about-lead {
  max-width: 60ch;
  color: var(--on-dark);
  font-size: 16.5px;
}

.page-about .about-lead--dark {
  max-width: 68ch;
  color: var(--on-dark);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.page-about .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: var(--radius-s);
  border: 1px solid transparent;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 160ms var(--ease), border-color 160ms var(--ease), color 160ms var(--ease), transform 160ms var(--ease);
}

.page-about .btn--primary {
  background: var(--cinnabar);
  color: #FFF6F3;
  box-shadow: 0 14px 28px -18px rgba(198, 58, 46, 0.9);
}

.page-about .btn--primary:hover {
  background: var(--cinnabar-soft);
  transform: translateY(-1px);
}

.page-about .btn--ghost {
  background: transparent;
  border-color: var(--line-gold-strong);
  color: var(--fog);
}

.page-about .btn--ghost:hover {
  border-color: var(--gold-soft);
  color: var(--gold-soft);
}

.page-about .btn:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 3px;
}

.page-about .about-hero__meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--on-dark-dim);
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--ink-panel);
  box-shadow: var(--shadow-panel);
}

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

@media (min-width: 960px) {
  .page-about .about-hero {
    padding: 24px 0 84px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 52px;
    margin-top: 40px;
  }

  .page-about .about-hero__title {
    margin-left: -0.05em;
  }
}

/* ---------- 通用分区 ---------- */

.page-about .about-section {
  position: relative;
  padding: 56px 0;
}

@media (min-width: 768px) {
  .page-about .about-section {
    padding: 82px 0;
  }
}

@media (min-width: 1080px) {
  .page-about .about-section {
    padding: 102px 0;
  }
}

.page-about .about-section--fog {
  background: var(--fog);
  color: var(--ink-text);
  border-top: 1px solid var(--fog-line);
  border-bottom: 1px solid var(--fog-line);
}

.page-about .about-section--night {
  background: linear-gradient(180deg, var(--ink-void) 0%, var(--ink-night) 100%);
  color: var(--fog);
}

.page-about .about-section--panel {
  background:
    radial-gradient(85% 95% at 12% -5%, rgba(63, 143, 134, 0.17), transparent 62%),
    radial-gradient(70% 80% at 100% 110%, rgba(198, 58, 46, 0.14), transparent 60%),
    var(--ink-panel);
  color: var(--fog);
}

.page-about .about-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.page-about .about-head--wide {
  max-width: 880px;
}

.page-about .about-h2 {
  margin: 0 0 16px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.55rem, 3.6vw, 2.35rem);
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--ink-text);
}

.page-about .about-section--night .about-h2,
.page-about .about-section--panel .about-h2 {
  color: var(--fog);
}

.page-about .about-prose p {
  margin: 0 0 1.15em;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--ink-text);
}

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

.page-about .about-prose a {
  color: var(--cinnabar);
  text-underline-offset: 3px;
}

.page-about .about-note {
  margin: 26px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-muted);
}

/* ---------- 主场概述数据 ---------- */

.page-about .about-facts {
  display: grid;
  gap: 14px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 720px) {
  .page-about .about-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-about .about-facts__item {
  padding: 18px 16px;
  border: 1px solid var(--fog-line);
  border-top: 2px solid var(--gold);
  border-radius: var(--radius-s);
  background: rgba(255, 255, 255, 0.55);
}

.page-about .about-facts__num {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--cinnabar);
  font-variant-numeric: tabular-nums;
}

.page-about .about-facts__text {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-muted);
}

/* ---------- 时间线 ---------- */

.page-about .about-timeline {
  position: relative;
  margin: 42px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 18px;
  width: 1px;
  background: linear-gradient(180deg, transparent 0%, var(--about-axis) 6%, var(--about-axis) 94%, transparent 100%);
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 34px 36px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink-night);
  border: 1px solid var(--gold);
  box-shadow: 0 0 0 5px rgba(216, 168, 90, 0.08);
  transition: background-color 200ms var(--ease), border-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-about .about-timeline__item:hover::before,
.page-about .about-timeline__item:focus-within::before {
  background: var(--cinnabar);
  border-color: var(--cinnabar-soft);
  transform: scale(1.15);
}

.page-about .about-timeline__phase {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-about .about-timeline__title {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-size: clamp(1.08rem, 2.3vw, 1.3rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--fog);
}

.page-about .about-timeline__text {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--on-dark);
}

.page-about .about-timeline__figure {
  position: relative;
  padding: 0 0 34px 36px;
  list-style: none;
}

.page-about .about-timeline__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-m);
  background: rgba(22, 41, 74, 0.55);
}

.page-about .about-timeline__figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--on-dark-dim);
}

@media (min-width: 900px) {
  .page-about .about-timeline {
    padding-left: 12px;
  }

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

  .page-about .about-timeline__figure {
    padding-left: 46px;
    max-width: 780px;
  }
}

/* ---------- 团队与小组 ---------- */

.page-about .about-team__figure {
  margin: 0 0 34px;
  border: 1px solid var(--fog-line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: #FFFFFF;
}

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

.page-about .about-team__figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-muted);
  border-top: 1px solid var(--fog-line);
}

.page-about .about-team__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-bottom: 26px;
  padding: 14px 16px;
  border: 1px solid var(--fog-line);
  border-radius: var(--radius-m);
  background: rgba(255, 255, 255, 0.6);
}

.page-about .filter-bar__label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
}

.page-about .about-team__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .chip {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 15px;
  border-radius: 999px;
  border: 1px solid var(--fog-line);
  background: transparent;
  color: var(--ink-text);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease), color 160ms var(--ease);
}

.page-about .chip:hover {
  border-color: var(--jade);
  color: var(--jade);
}

.page-about .chip[aria-pressed="true"] {
  background: var(--jade);
  border-color: var(--jade);
  color: #F2FBF9;
}

.page-about .chip:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}

.page-about .filter-bar__status {
  margin-left: auto;
  font-size: 13px;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.page-about .about-team__grid {
  display: grid;
  gap: 18px;
}

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

@media (min-width: 1080px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

.page-about .about-team__card {
  display: flex;
  flex-direction: column;
  padding: 22px 20px;
  border: 1px solid var(--fog-line);
  border-radius: var(--radius-m);
  background: #FFFFFF;
  box-shadow: 0 1px 0 rgba(28, 37, 49, 0.03);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

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

.page-about .about-team__card-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
}

.page-about .tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-about .tag--jade {
  background: rgba(63, 143, 134, 0.12);
  color: var(--jade);
  border: 1px solid rgba(63, 143, 134, 0.32);
}

.page-about .about-team__card-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink-text);
}

.page-about .about-team__card-text {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-muted);
}

.page-about .about-team__duties {
  margin: auto 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--fog-line);
}

.page-about .about-team__duties li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--ink-text);
}

.page-about .about-team__duties li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--gold);
  border-radius: 50%;
}

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

/* ---------- 服务版图数据 ---------- */

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 34px;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--line-gold);
}

@media (min-width: 860px) {
  .page-about .about-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 22px 16px;
  background: rgba(9, 22, 42, 0.94);
}

.page-about .about-stat__value {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--cinnabar-soft);
  font-variant-numeric: tabular-nums;
}

.page-about .about-stat__unit {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--gold-soft);
}

.page-about .about-stat__label {
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--on-dark-dim);
}

.page-about .about-capacity {
  display: grid;
  gap: 20px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 820px) {
  .page-about .about-capacity {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }
}

.page-about .about-capacity__item {
  padding-top: 16px;
  border-top: 1px solid var(--line-gold-strong);
}

.page-about .about-capacity__title {
  margin: 0 0 8px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--fog);
}

.page-about .about-capacity__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--on-dark);
}

/* ---------- 资料归档 ---------- */

.page-about .about-archive {
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--fog-line);
}

.page-about .about-archive li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--fog-line);
}

.page-about .about-archive__num {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-about .about-archive__title {
  margin: 0 0 8px;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink-text);
}

.page-about .about-archive p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-muted);
}

.page-about .about-archive a {
  color: var(--cinnabar);
  text-underline-offset: 3px;
}

/* ---------- 合作生态 ---------- */

.page-about .about-partner {
  display: grid;
  gap: 38px;
}

@media (min-width: 1000px) {
  .page-about .about-partner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }
}

.page-about .about-partner__lead {
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--on-dark);
}

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

.page-about .about-partner__list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line-gold);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--on-dark);
}

.page-about .about-partner__list strong {
  color: var(--gold-soft);
  font-weight: 700;
  margin-right: 4px;
}

.page-about .about-partner__links {
  display: grid;
  gap: 12px;
}

.page-about .about-partner__links-title {
  margin: 0 0 6px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--on-dark-dim);
}

.page-about .about-link-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line-gold);
  border-left: 2px solid var(--cinnabar);
  border-radius: var(--radius-m);
  background: rgba(11, 27, 51, 0.55);
  text-decoration: none;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-about .about-link-card:hover {
  background: rgba(22, 41, 74, 0.85);
  border-color: var(--line-gold-strong);
  border-left-color: var(--cinnabar-soft);
  transform: translateX(3px);
}

.page-about .about-link-card:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 3px;
}

.page-about .about-link-card__name {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--fog);
}

.page-about .about-link-card__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--on-dark-dim);
}

.page-about .about-end {
  margin-top: 44px;
  padding: 22px 20px;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-m);
  background: rgba(7, 18, 35, 0.6);
}

.page-about .about-end__text {
  margin: 0;
  max-width: 78ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--on-dark);
}

.page-about .about-end__text a {
  color: var(--gold-soft);
  text-underline-offset: 3px;
}

/* ---------- 入场动效 ---------- */

.page-about [data-reveal] {
  opacity: 1;
}

.js-on .page-about [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
}

.js-on .page-about [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
  transition: opacity 420ms var(--ease), transform 420ms var(--ease);
}

.page-about .is-entering {
  opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
  .page-about .js-on [data-reveal],
  .page-about .js-on [data-reveal].is-revealed {
    opacity: 1;
    transform: none;
    transition: opacity 120ms linear;
  }

  .page-about .about-timeline__item::before,
  .page-about .about-team__card,
  .page-about .about-link-card {
    transition: none;
  }
}