.page-about {
  --about-line: 2px solid var(--ink);
  --jade-soft: rgba(248, 242, 228, 0.84);
  background: var(--jade);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: clip;
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.24;
  margin: 0;
}

.page-about p {
  margin: 0 0 1.1em;
}

.page-about h1 {
  font-size: 31px;
}

.page-about h2 {
  font-size: 25px;
}

.page-about h3 {
  font-size: 18px;
}

.page-about a {
  color: var(--red);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-about a:hover,
.page-about a:focus-visible {
  color: var(--red-lit);
}

.page-about .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
  margin: 0 0 10px;
}

.page-about .about-sec {
  padding: 50px 0;
}

.page-about .sec-lede {
  max-width: 62ch;
  margin-top: 14px;
  margin-bottom: 0;
}

/* ---------- 首屏 ---------- */
.about-intro {
  padding: 24px 0 12px;
}

.about-intro h1 {
  max-width: 22ch;
  padding-left: 16px;
  border-left: 8px solid var(--red);
}

.about-intro .lede {
  font-size: 17px;
  max-width: 64ch;
  margin-top: 20px;
}

.intro-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3px;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  background: var(--ink);
  border: var(--bd);
  box-shadow: var(--shadow-1);
}

.intro-stats li {
  background: var(--ledger);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--red);
}

.stat-lab {
  font-size: 13px;
  line-height: 1.5;
  color: var(--grey);
}

/* ---------- 从头一笔 ---------- */
.about-open {
  padding-top: 34px;
}

.open-grid {
  display: grid;
  gap: 26px;
}

.open-text p {
  max-width: 60ch;
}

.page-about .figure__frame {
  overflow: hidden;
  border: var(--bd);
  background: var(--ledger);
}

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

.about-open__fig {
  margin: 0;
}

.about-open__fig .figure__frame {
  aspect-ratio: 16 / 9;
  box-shadow: var(--shadow-1);
}

.page-about .figure__cap {
  font-size: 13px;
  line-height: 1.65;
  color: var(--grey);
  margin-top: 10px;
}

/* ---------- 版本账簿时间线 ---------- */
.about-timeline {
  padding-bottom: 0;
}

.tl-band {
  margin-top: 30px;
  background: var(--ledger);
  border-top: var(--bd);
  border-bottom: var(--bd);
  background-image: repeating-linear-gradient(
    90deg,
    transparent 0 26px,
    rgba(27, 21, 18, 0.055) 26px 28px
  );
}

.tl-rail {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 28px 20px 40px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--gold-deep) transparent;
}

.tl-rail:focus-visible {
  outline: 3px solid var(--red-lit);
  outline-offset: -3px;
}

.tl-card {
  flex: 0 0 78%;
  max-width: 292px;
  scroll-snap-align: start;
  background: var(--jade);
  border: var(--bd);
  box-shadow: var(--shadow-1);
  padding: 16px 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow 0.18s var(--ease), transform 0.18s var(--ease);
}

.tl-card:nth-child(even) {
  margin-top: 34px;
}

.tl-card:nth-child(3n) {
  background: var(--ledger);
}

.tl-head {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tl-coin {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--gold);
  color: var(--ink);
  flex: 0 0 auto;
}

.tl-coin svg {
  display: block;
}

.tl-title {
  font-size: 17px;
  line-height: 1.35;
}

.tl-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink);
}

@media (hover: hover) {
  .tl-card:hover {
    box-shadow: var(--shadow-2);
    transform: translate(2px, -2px);
  }
}

/* ---------- CSQP 旧版对照 ---------- */
.page-about .about-csqp {
  background: var(--ink-green);
  color: var(--jade);
}

.page-about .about-csqp h2 {
  color: var(--jade);
}

.page-about .about-csqp .eyebrow {
  color: var(--gold);
}

.page-about .about-csqp .sec-lede {
  color: var(--jade-soft);
}

.page-about .about-csqp a {
  color: var(--gold);
}

.csqp-figure {
  margin: 28px 0 0;
}

.csqp-figure .figure__frame {
  aspect-ratio: 7 / 4;
  border-color: var(--gold-deep);
  background: var(--ink);
}

.page-about .about-csqp .figure__cap {
  color: var(--jade-soft);
}

.csqp-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 30px;
}

.csqp-index {
  border: 3px solid var(--gold-deep);
  background: rgba(214, 164, 25, 0.1);
  padding: 16px;
}

.csqp-index__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin: 0 0 12px;
}

.csqp-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.csqp-index__list a {
  display: block;
  color: var(--jade);
  text-decoration: none;
  border-left: 3px solid var(--gold-deep);
  padding: 6px 12px 6px 10px;
  font-size: 14px;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease),
    background-color 0.18s var(--ease);
}

.csqp-index__list a:hover,
.csqp-index__list a:focus-visible {
  border-left-color: var(--gold);
  color: var(--gold);
  background: rgba(214, 164, 25, 0.14);
}

.csqp-grp {
  border: 3px solid var(--gold-deep);
  background: rgba(248, 242, 228, 0.045);
  margin-bottom: 14px;
}

.csqp-grp:last-of-type {
  margin-bottom: 0;
}

.csqp-grp .fold__sum {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--jade);
  padding: 15px 16px;
  cursor: pointer;
}

.csqp-grp .fold__body {
  padding: 2px 16px 18px;
}

.csqp-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.csqp-side {
  border: 2px solid var(--gold-deep);
  background: rgba(248, 242, 228, 0.05);
  padding: 12px 14px;
}

.csqp-side--new {
  border-color: var(--red-lit);
}

.csqp-side__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 2px 9px;
  margin: 0 0 10px;
  color: var(--ink);
  background: var(--gold);
}

.csqp-side--new .csqp-side__tag {
  background: var(--red-lit);
  color: var(--jade);
}

.csqp-side p:last-child {
  margin-bottom: 0;
  font-size: 14.5px;
  color: var(--jade-soft);
}

.csqp-stuck {
  margin: 14px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--amber);
  font-size: 14px;
  color: var(--jade-soft);
}

.csqp-foot {
  margin: 20px 0 0;
  padding: 14px 16px;
  border: 2px dashed var(--gold-deep);
  font-size: 14px;
  color: var(--gold);
}

/* ---------- 清单沿革 ---------- */
.list-rise {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 26px;
}

.list-rise__cell {
  border: var(--bd);
  background: var(--ledger);
  box-shadow: var(--shadow-1);
  padding: 18px 16px;
}

.list-rise__cell--now {
  background: var(--red);
  color: var(--jade);
}

.list-rise__cell--start .stat-num {
  color: var(--gold-deep);
}

.list-rise__cell--now .stat-num {
  color: var(--gold);
}

.list-rise__cell p {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
}

.step-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.step-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border: var(--bd);
  background: var(--jade);
  box-shadow: var(--shadow-1);
  padding: 16px;
}

.step-list li h3 {
  margin-bottom: 6px;
}

.step-list li p {
  margin: 0;
  font-size: 14.5px;
  max-width: 54ch;
}

.step-list .numchip {
  flex: 0 0 auto;
  margin-top: 2px;
}

.update-note {
  margin: 24px 0 0;
  border-left: 5px solid var(--gold);
  background: var(--ledger);
  padding: 14px 16px;
  font-size: 15px;
}

.update-note a {
  color: var(--red);
  font-weight: 700;
}

/* ---------- 班底 ---------- */
.team-scroll {
  overflow-x: auto;
  margin-top: 26px;
  border: var(--bd);
  box-shadow: var(--shadow-1);
  background: var(--jade);
}

.team-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.team-table thead th {
  background: var(--ink-green);
  color: var(--jade);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  font-weight: 500;
}

.team-table th,
.team-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 2px solid var(--ink);
  vertical-align: top;
}

.team-table tbody tr:nth-child(even) {
  background: var(--ledger);
}

@media (hover: hover) {
  .team-table tbody tr:hover {
    background: rgba(214, 164, 25, 0.24);
  }
}

.page-about .team-table .mono {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--red);
  font-size: 15px;
}

.team-table tfoot th,
.team-table tfoot td {
  background: var(--gold);
  color: var(--ink);
  border-bottom: 0;
}

.page-about .team-table tfoot .mono {
  color: var(--ink);
}

.team-note {
  margin: 20px 0 0;
  font-size: 15px;
}

/* ---------- 广西本地服务点 ---------- */
.local-grid {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}

.local-fig {
  margin: 0;
}

.local-fig .figure__frame {
  aspect-ratio: 3 / 2;
  box-shadow: var(--shadow-1);
}

.local-text p {
  max-width: 58ch;
}

.local-list {
  list-style: none;
  margin: 18px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.local-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14.5px;
  padding-left: 12px;
  border-left: 3px solid var(--ledger);
}

.local-list .dot {
  margin-top: 9px;
  flex: 0 0 auto;
}

.local-note {
  margin: 0;
  font-size: 14.5px;
  color: var(--grey);
}

.local-note a {
  color: var(--red);
  font-weight: 700;
}

/* ---------- 收束 ---------- */
.about-next {
  padding-bottom: 64px;
}

.next-band {
  border: var(--bd);
  background: var(--red);
  color: var(--jade);
  box-shadow: var(--shadow-2);
  padding: 28px 20px;
}

.page-about .next-band h2 {
  color: var(--jade);
  font-size: 23px;
  margin-bottom: 12px;
}

.next-band p {
  color: var(--jade-soft);
  max-width: 56ch;
  margin-bottom: 0;
}

.next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.next-links .btn {
  text-decoration: none;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 640px) {
  .intro-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .list-rise {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .csqp-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .tl-card {
    flex-basis: 46%;
  }

  .tl-rail {
    padding: 32px 28px 46px;
  }
}

@media (min-width: 900px) {
  .page-about h1 {
    font-size: 40px;
  }

  .page-about h2 {
    font-size: 31px;
  }

  .page-about .about-sec {
    padding: 64px 0;
  }

  .about-intro {
    padding: 34px 0 18px;
  }

  .about-intro .lede {
    font-size: 18px;
  }

  .open-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: 40px;
  }

  .csqp-layout {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

  .csqp-index {
    position: sticky;
    top: 24px;
  }

  .csqp-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .local-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: 40px;
  }

  .tl-card {
    flex-basis: 300px;
  }

  .tl-rail {
    padding-inline: max(28px, calc((100vw - 1180px) / 2));
  }

  .next-band {
    padding: 36px 32px;
  }
}

@media (min-width: 1240px) {
  .tl-rail {
    padding-bottom: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-card,
  .page-about .csqp-index__list a {
    transition: none;
  }

  .page-about .tl-card:hover {
    transform: none;
  }
}