.page-about {
  --about-ghost: rgba(27, 20, 16, 0.06);
  --about-idx: 200px;
  background: var(--paper);
  color: var(--ink);
  padding-bottom: 48px;
}

.page-about .breadcrumbs {
  padding-top: 16px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  display: grid;
  gap: 26px;
  padding: 18px 0 34px;
  border-bottom: 3px solid var(--ink);
}

.page-about .about-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  padding: 5px 10px;
  border: 2px solid var(--ink);
  background: var(--mist);
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  box-shadow: var(--shadow-sm);
}

.page-about .about-hero__eyebrow .mono {
  color: var(--brick);
  font-size: 12px;
}

.page-about .about-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 6.4vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-about .about-hero__lead {
  margin: 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-about .about-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 11px;
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
  font-size: 13px;
}

.page-about .about-hero__facts .mono {
  font-size: 20px;
  font-weight: 700;
  color: var(--brick);
}

.page-about .jump-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
}

.page-about .media {
  margin: 0;
  border: 2px solid var(--ink);
  background: var(--ink);
  box-shadow: var(--shadow-hard);
}

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

.page-about .media__caption {
  padding: 8px 10px;
  background: var(--ink);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

/* ---------- 左索引 + 右正文 ---------- */
.page-about .archive-layout {
  padding-top: 26px;
}

.page-about .year-index {
  padding: 12px;
  border: 2px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  box-shadow: var(--shadow-sm);
  margin-bottom: 26px;
}

.page-about .year-index__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-about .year-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .year-index__item {
  flex: 0 0 auto;
}

.page-about .year-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 11px;
  border: 2px solid rgba(244, 237, 224, 0.32);
  color: var(--paper);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.16s ease, color 0.16s ease;
}

.page-about .year-index__link .mono {
  font-size: 15px;
  font-weight: 700;
}

.page-about .year-index__vol {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-about .year-index__link:hover,
.page-about .year-index__link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  outline: none;
}

/* ---------- 章节 ---------- */
.page-about .archive-section {
  padding: 30px 0;
  border-top: 2px solid var(--ink);
}

.page-about .archive-section--first {
  border-top: none;
  padding-top: 0;
}

.page-about .archive-section__eyebrow {
  display: inline-block;
  margin: 0 0 10px;
  padding: 4px 9px;
  background: var(--orange);
  color: var(--ink);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.page-about .archive-section__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 4vw, 32px);
  line-height: 1.3;
  max-width: 26ch;
}

.page-about .archive-section__lead {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-about .prose p {
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-about .prose a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--cyan);
}

.page-about .prose a:hover {
  color: var(--brick);
  border-bottom-color: var(--orange);
}

/* ---------- 引用块 ---------- */
.page-about .quote-felt {
  margin: 26px 0 0;
  padding: 24px 20px;
  border: 2px solid var(--ink);
  background: var(--felt);
  color: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-about .quote-felt p {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 3.2vw, 26px);
  line-height: 1.5;
  max-width: 24ch;
}

.page-about .quote-felt footer {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* ---------- 卷宗时间线 ---------- */
.page-about .volumes {
  margin-top: 6px;
}

.page-about .volume {
  position: relative;
  padding: 22px 0 24px 0;
  border-top: 2px solid var(--ink);
  overflow: hidden;
}

.page-about .volume:first-child {
  border-top: 2px solid var(--ink);
}

.page-about .volume__ghost {
  position: absolute;
  right: -4px;
  top: 6px;
  z-index: 0;
  font-size: clamp(46px, 13vw, 92px);
  font-weight: 700;
  line-height: 1;
  color: var(--about-ghost);
  pointer-events: none;
  user-select: none;
}

.page-about .volume__head {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin-bottom: 10px;
}

.page-about .volume__node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 2px solid var(--ink);
  background: var(--felt);
  color: var(--gold);
  font-size: 14px;
  font-weight: 700;
  transition: background 0.16s ease, color 0.16s ease;
}

.page-about .volume:target .volume__node {
  background: var(--orange);
  color: var(--ink);
}

.page-about .volume__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 3vw, 24px);
  font-weight: 700;
  line-height: 1.35;
}

.page-about .volume__meta {
  margin: 0;
  padding: 3px 8px;
  border: 2px solid var(--ink);
  background: var(--mist);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-about .volume__text {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
  margin-bottom: 24px;
}

.page-about .team-card {
  padding: 16px;
  border: 2px solid var(--ink);
  border-top: 6px solid var(--orange);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
}

.page-about .team-card:nth-child(2) {
  border-top-color: var(--cyan);
}

.page-about .team-card:nth-child(3) {
  border-top-color: var(--gold);
}

.page-about .team-card__title {
  margin: 0 0 8px;
  font-family: var(--font-label);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-about .team-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

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

.page-about .flow {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: flow;
}

.page-about .flow__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  padding: 12px 14px;
  border: 2px solid var(--ink);
  background: var(--mist);
}

.page-about .flow__no {
  grid-row: span 2;
  align-self: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--brick);
}

.page-about .flow__name {
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 15px;
}

.page-about .flow__desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* ---------- 数字对照 ---------- */
.page-about .compare-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}

.page-about .compare-grid .kvlist {
  border: 2px solid var(--ink);
  background: var(--paper);
}

.page-about .compare-grid .kvlist__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  padding: 11px 13px;
  border-bottom: 1px solid var(--line);
}

.page-about .compare-grid .kvlist__row:last-child {
  border-bottom: none;
}

.page-about .compare-grid .kvlist__key {
  font-family: var(--font-label);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--brick);
}

.page-about .compare-grid .kvlist__val {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-about .compare-note {
  padding: 20px 18px;
  border: 2px solid var(--ink);
  background: var(--night);
  color: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-about .compare-note__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-about .compare-note p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-about .compare-note .btn {
  margin-top: 4px;
}

/* ---------- 重庆 ---------- */
.page-about .cq-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.page-about .cq-text p {
  margin: 0 0 14px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-about .cq-text .btn {
  margin-top: 4px;
}

/* ---------- 专栏 ---------- */
.page-about .column-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-about .column-card {
  padding: 15px 16px;
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.page-about .column-card:hover,
.page-about .column-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hard);
  outline: none;
}

.page-about .column-card__no {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--brick);
}

.page-about .column-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
}

.page-about .column-card__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 联系 ---------- */
.page-about .archive-section--contact {
  padding-bottom: 12px;
}

.page-about .contact-card {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
  padding: 22px 18px;
  border: 2px solid var(--ink);
  background: var(--felt);
  color: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-about .contact-card__main p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: #E9E1D2;
  max-width: 52ch;
}

.page-about .contact-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .contact-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid rgba(244, 237, 224, 0.28);
}

.page-about .contact-card__list li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(244, 237, 224, 0.18);
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-about .contact-card__list .mono {
  display: inline-block;
  min-width: 44px;
  margin-right: 8px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .column-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .compare-grid .kvlist__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 4px 16px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 40px;
    padding: 26px 0 44px;
  }

  .page-about .about-hero__lead {
    font-size: 17px;
  }

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

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

  .page-about .compare-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .cq-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
    gap: 28px;
  }

  .page-about .contact-card {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 32px;
    padding: 26px 24px;
  }

  .page-about .archive-section {
    padding: 38px 0;
  }

  .page-about .volume {
    padding: 26px 0 28px;
  }
}

@media (min-width: 960px) {
  .page-about .archive-layout {
    display: grid;
    grid-template-columns: var(--about-idx) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
    padding-top: 34px;
  }

  .page-about .year-index {
    position: sticky;
    top: 96px;
    margin-bottom: 0;
    padding: 16px;
  }

  .page-about .year-index__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .year-index__link {
    justify-content: space-between;
    width: 100%;
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-about .column-card__note {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    margin-top: 0;
    transition: max-height 0.2s ease, opacity 0.18s ease, margin-top 0.2s ease;
  }

  .page-about .column-card:hover .column-card__note,
  .page-about .column-card:focus-within .column-card__note,
  .page-about .column-card:focus .column-card__note {
    max-height: 6em;
    opacity: 1;
    margin-top: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .column-card,
  .page-about .column-card__note,
  .page-about .volume__node,
  .page-about .year-index__link {
    transition: none;
  }

  .page-about .column-card:hover {
    transform: none;
  }
}
<<<END>>>