.page-about {
  --about-gap: 64px;
  padding: 20px 0 72px;
  color: var(--paper);
}

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

.page-about figure {
  margin: 0;
}

.page-about .about-crumb {
  margin-bottom: 24px;
}

/* ---------- 首屏 ---------- */
.page-about .about-intro {
  display: grid;
  gap: 28px;
  padding-top: 24px;
  border-top: 2px solid var(--border);
}

.page-about .about-intro .page-title {
  margin: 14px 0 18px;
  font-size: clamp(2rem, 8vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 16ch;
}

.page-about .intro-copy .lead {
  max-width: 48ch;
  color: var(--muted);
  line-height: 1.8;
}

.page-about .intro-stats {
  display: grid;
  margin: 0;
  border: 2px solid var(--border);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-about .intro-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.page-about .intro-stat:last-child {
  border-bottom: 0;
}

.page-about .intro-stat dt {
  color: var(--muted);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
}

.page-about .intro-stat dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.375rem;
  color: var(--cyan);
}

.page-about .intro-stat dd.is-accent {
  color: var(--orange);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-section {
  margin-top: var(--about-gap);
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.page-about .about-h2 {
  margin: 8px 0 0;
  font-size: clamp(1.45rem, 5.4vw, 2.5rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  max-width: 24ch;
}

.page-about .about-figure,
.page-about .about-fj-figure {
  margin: 26px 0 0;
  border: 2px solid var(--border);
  background: var(--ink-800);
}

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

.page-about .media-frame__caption {
  padding: 10px 14px;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 时间线 ---------- */
.page-about .about-tabs {
  margin-top: 26px;
}

.page-about .about-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-about .about-tabs .tabs__btn {
  padding: 10px 16px;
  border: 2px solid var(--border);
  background: var(--ink-800);
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color 0.14s, border-color 0.14s, background-color 0.14s;
}

.page-about .about-tabs .tabs__btn:hover {
  color: var(--paper);
  border-color: var(--cyan-soft);
}

.page-about .about-tabs .tabs__btn[aria-selected="true"] {
  border-color: var(--cyan);
  background: var(--ink-700);
  color: var(--cyan);
}

.page-about .about-tabs .tabs__btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-about .tl-body {
  display: grid;
  gap: 16px;
  padding: 22px 18px;
  border: 2px solid var(--border);
  background: var(--ink-800);
}

.page-about .tl-year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(3rem, 16vw, 6rem);
  line-height: 0.85;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-about .tl-text h3 {
  margin: 0 0 10px;
  font-size: 1.125rem;
  line-height: 1.4;
}

.page-about .tl-text p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.page-about .tl-list {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .tl-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--paper);
}

.page-about .tl-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--orange);
}

/* ---------- 分类标签 ---------- */
.page-about .tag-layout {
  display: grid;
  gap: 24px;
  margin-top: 22px;
}

.page-about .tag-copy p {
  margin: 0 0 14px;
  max-width: 54ch;
  color: var(--muted);
  line-height: 1.8;
}

.page-about .tag-copy p:last-child {
  margin-bottom: 0;
  font-size: 0.8125rem;
  color: var(--cyan-soft);
}

.page-about .about-tag-figure {
  border: 2px solid var(--border);
  background: var(--ink-800);
}

.page-about .tag-matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 26px;
}

.page-about .tag-cell {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 4px 8px;
  padding: 14px 14px 12px;
  border: 2px solid var(--border);
  background: var(--ink-800);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.14s, background-color 0.14s, transform 0.14s;
}

.page-about .tag-cell:hover,
.page-about .tag-cell:focus-visible {
  border-color: var(--cyan);
  background: var(--ink-700);
  transform: translateY(-2px);
  outline: none;
}

.page-about .tag-cell:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-about .tag-cell__name {
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-about .tag-cell__count {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--cyan);
}

.page-about .tag-cell__path {
  grid-column: 1 / -1;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--orange);
  transition: max-height 0.2s ease, opacity 0.16s ease;
}

.page-about .tag-cell:hover .tag-cell__path,
.page-about .tag-cell:focus-visible .tag-cell__path {
  max-height: 3.6em;
  opacity: 1;
}

/* ---------- 维护节奏 ---------- */
.page-about .cadence-grid {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-about .cadence-item {
  padding: 20px 18px;
  border: 2px solid var(--border);
  border-left: 4px solid var(--cyan);
  background: var(--ink-800);
}

.page-about .cadence-num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 1.75rem;
  color: var(--cyan);
}

.page-about .cadence-item h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.page-about .cadence-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* ---------- 福建本地 ---------- */
.page-about .fj-layout {
  display: grid;
  gap: 22px;
  margin-top: 24px;
}

.page-about .fj-panel p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.8;
}

.page-about .fj-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 10px;
  margin: 20px 0 0;
}

.page-about .fj-stats div {
  padding: 12px;
  border: 1px solid var(--border);
  background: var(--ink-700);
}

.page-about .fj-stats dt {
  margin-bottom: 6px;
  font-size: 0.75rem;
  color: var(--muted);
}

.page-about .fj-stats dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--green);
}

.page-about .fj-map {
  padding: 12px;
  border: 2px solid var(--border);
  background: linear-gradient(155deg, var(--ink-800), var(--ink-900));
}

.page-about .fj-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .fj-svg .fj-coast {
  stroke: var(--border);
  stroke-width: 1.5;
}

.page-about .fj-svg .fj-glow {
  stroke: var(--cyan);
  stroke-width: 1.5;
  stroke-dasharray: 6 10;
  opacity: 0.55;
}

.page-about .fj-svg .fj-node circle {
  fill: rgba(34, 230, 255, 0.14);
  stroke: var(--cyan);
  stroke-width: 1.5;
}

.page-about .fj-svg .fj-node .fj-dot {
  fill: var(--cyan);
  stroke: none;
}

.page-about .fj-svg text {
  fill: var(--paper);
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* ---------- 团队 ---------- */
.page-about .team-intro {
  margin: 18px 0 0;
  max-width: 50ch;
  color: var(--muted);
  line-height: 1.8;
}

.page-about .team-grid {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-about .team-card {
  padding: 20px 18px;
  border: 2px solid var(--border);
  background: var(--ink-800);
}

.page-about .team-num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 2.25rem;
  line-height: 1;
  color: var(--cyan);
}

.page-about .team-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.page-about .team-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

/* ---------- 生态与认可 ---------- */
.page-about .eco-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.page-about .eco-item {
  padding: 18px 16px;
  border-top: 2px solid var(--gold);
  background: var(--ink-800);
}

.page-about .eco-item .mono {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 1.75rem;
  color: var(--gold);
}

.page-about .eco-item p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
}

.page-about .eco-honor {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.page-about .eco-honor__item {
  padding: 16px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  background: var(--ink-700);
}

.page-about .eco-honor__item .mono {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--gold);
}

.page-about .eco-honor__item p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.6;
}

.page-about .eco-note {
  margin: 20px 0 0;
  max-width: 56ch;
  color: var(--muted);
  line-height: 1.8;
}

/* ---------- 尾部入口 ---------- */
.page-about .about-cta {
  margin-top: var(--about-gap);
  padding: 26px 20px;
  border: 2px solid var(--border);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-about .about-cta h2 {
  margin: 0 0 12px;
  font-size: clamp(1.35rem, 5vw, 2rem);
  line-height: 1.2;
}

.page-about .about-cta p {
  margin: 0 0 22px;
  max-width: 52ch;
  color: var(--muted);
  line-height: 1.8;
}

.page-about .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

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

  .page-about .cadence-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-cta {
    padding: 34px 30px;
  }
}

@media (min-width: 900px) {
  .page-about {
    --about-gap: 88px;
  }

  .page-about .about-intro {
    grid-template-columns: 1.6fr 0.85fr;
    gap: 44px;
    align-items: start;
  }

  .page-about .tag-layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 36px;
    align-items: center;
  }

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

  .page-about .fj-layout {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 36px;
    align-items: start;
  }

  .page-about .tl-body {
    grid-template-columns: 200px 1fr;
    gap: 30px;
    align-items: start;
    padding: 28px 26px;
  }

  .page-about .about-h2 {
    max-width: 26ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tag-cell,
  .page-about .tag-cell__path,
  .page-about .about-tabs .tabs__btn {
    transition: none;
  }

  .page-about .tag-cell:hover,
  .page-about .tag-cell:focus-visible {
    transform: none;
  }
}