.page-about {
  --about-rail: 148px;
  display: block;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  background: linear-gradient(158deg, var(--ink) 0%, var(--ink-2) 56%, #0e342d 100%);
  border-bottom: 1px solid var(--gold);
  overflow: hidden;
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(232, 216, 166, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(232, 216, 166, .05) 1px, transparent 1px);
  background-size: 64px 64px;
}
.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
.page-about .about-hero .eyebrow {
  color: var(--gold);
}
.page-about .about-hero h1 {
  margin: 12px 0 18px;
  color: var(--paper);
  font-weight: 900;
  letter-spacing: .04em;
  line-height: 1.18;
  font-size: clamp(30px, 5.4vw, 52px);
  max-width: 16em;
}
.page-about .about-hero .lead {
  color: rgba(245, 241, 230, .82);
  max-width: 34em;
}
.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-about .about-hero-actions .btn--ghost {
  color: var(--paper);
  border-color: rgba(232, 216, 166, .42);
}
.page-about .about-hero-actions .btn--ghost:hover,
.page-about .about-hero-actions .btn--ghost:focus-visible {
  border-color: var(--gold-soft);
  background: rgba(232, 216, 166, .1);
}
.page-about .about-hero-media {
  margin: 0;
  border: 1px solid rgba(198, 163, 74, .45);
  background: rgba(11, 43, 38, .5);
  overflow: hidden;
}
.page-about .about-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

.page-about .hero-stats {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(198, 163, 74, .28);
  border: 1px solid rgba(198, 163, 74, .28);
}
.page-about .hero-stats li {
  background: rgba(11, 43, 38, .78);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-about .stat-num {
  color: var(--gold-soft);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
}
.page-about .stat-label {
  color: rgba(245, 241, 230, .68);
  font-size: 13px;
  letter-spacing: .06em;
}

/* ---------- 章节跳转 ---------- */
.page-about .about-jump {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.page-about .jump-list {
  list-style: none;
  margin: 0;
  padding: 4px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}
.page-about .jump-link {
  display: inline-block;
  padding: 6px 0;
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: .04em;
  border-bottom: 2px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.page-about .jump-link:hover,
.page-about .jump-link:focus-visible {
  color: var(--accent-ink);
  border-bottom-color: var(--gold);
}

/* ---------- 年份档案 ---------- */
.page-about .about-years {
  background: var(--bg);
}
.page-about .about-years-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.page-about .year-rail-list {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.page-about .year-tick {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}
.page-about .year-tick:hover,
.page-about .year-tick:focus-visible {
  color: var(--accent-ink);
  border-color: var(--gold);
  background: var(--surface-2);
}
.page-about .year-dot {
  width: 7px;
  height: 7px;
  background: var(--steel);
  flex: none;
  transition: background 160ms var(--ease);
}
.page-about .year-tick:hover .year-dot,
.page-about .year-tick:focus-visible .year-dot {
  background: var(--gold);
}
.page-about .year-num {
  font-size: 14px;
  letter-spacing: .06em;
}

.page-about .year-cards {
  display: grid;
  gap: 16px;
}
.page-about .year-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gold);
  padding: 22px 22px 20px;
}
.page-about .year-tag {
  display: inline-block;
  margin: 0 0 10px;
  padding: 3px 10px;
  background: var(--ink);
  color: var(--gold-soft);
  font-size: 13px;
  letter-spacing: .1em;
}
.page-about .year-card-title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.42;
  color: var(--fg);
}
.page-about .year-card p {
  margin: 0 0 10px;
  color: var(--fg-muted);
  font-size: 15.5px;
  line-height: 1.75;
}
.page-about .year-card p:last-child {
  margin-bottom: 0;
}
.page-about .year-meta {
  color: var(--steel) !important;
  font-size: 13px !important;
  letter-spacing: .06em;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

/* ---------- 日常内容 ---------- */
.page-about .about-daily {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.page-about .daily-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-about .daily-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 200ms var(--ease), transform 200ms var(--ease);
}
.page-about .daily-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}
.page-about .daily-num {
  color: var(--gold);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .08em;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.page-about .daily-title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--fg);
  line-height: 1.4;
}
.page-about .daily-card p {
  margin: 0;
  color: var(--fg-muted);
  font-size: 15.5px;
  line-height: 1.75;
}
.page-about .daily-note {
  margin-top: auto !important;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
  color: var(--accent-ink) !important;
  font-size: 14px !important;
}

/* ---------- 四道工序 ---------- */
.page-about .about-process {
  background: var(--ink);
  color: var(--paper);
  border-top: 1px solid var(--gold);
}
.page-about .about-process .eyebrow {
  color: var(--gold);
}
.page-about .about-process .section-title {
  color: var(--paper);
}
.page-about .about-process .lead {
  color: rgba(245, 241, 230, .74);
}
.page-about .proc-bar {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid rgba(198, 163, 74, .38);
  background: rgba(18, 59, 51, .72);
}
.page-about .proc-item {
  border-bottom: 1px solid rgba(198, 163, 74, .28);
}
.page-about .proc-item:last-child {
  border-bottom: 0;
}
.page-about .proc-q {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 18px;
  background: transparent;
  border: 0;
  border-left: 3px solid transparent;
  color: var(--paper);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 180ms var(--ease), border-color 180ms var(--ease);
}
.page-about .proc-q:hover,
.page-about .proc-q:focus-visible {
  background: rgba(232, 216, 166, .08);
  border-left-color: var(--gold);
}
.page-about .proc-q[aria-expanded="true"] {
  border-left-color: var(--red);
  background: rgba(232, 216, 166, .06);
}
.page-about .proc-num {
  color: var(--gold-soft);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .06em;
  flex: none;
  padding-left: 8px;
}
.page-about .proc-q[aria-expanded="true"] .proc-num {
  color: var(--gold);
}
.page-about .proc-name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .05em;
}
.page-about .proc-a {
  padding: 0 20px 22px 61px;
  border-left: 3px solid var(--red);
}
.page-about .proc-a p {
  margin: 0 0 10px;
  color: rgba(245, 241, 230, .78);
  font-size: 15px;
  line-height: 1.78;
}
.page-about .proc-a p:last-child {
  margin-bottom: 0;
}
.page-about .proc-owner {
  color: var(--gold-soft) !important;
  font-size: 13px !important;
  letter-spacing: .05em;
}

.page-about .process-figure {
  margin: 32px 0 0;
  border: 1px solid rgba(198, 163, 74, .32);
  background: rgba(11, 43, 38, .6);
}
.page-about .process-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}
.page-about .process-figure .media-caption {
  padding: 12px 16px;
  border-top: 1px solid rgba(198, 163, 74, .24);
  color: rgba(245, 241, 230, .6);
  font-size: 13px;
  letter-spacing: .04em;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  background: var(--bg);
}
.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-about .team-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--steel);
  padding: 22px 20px;
}
.page-about .team-title {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 800;
  color: var(--fg);
}
.page-about .team-count {
  margin: 0 0 12px;
  color: var(--accent-ink);
  font-size: 13px;
  letter-spacing: .05em;
}
.page-about .team-card p {
  margin: 0;
  color: var(--fg-muted);
  font-size: 15.5px;
  line-height: 1.75;
}
.page-about .team-card--wide {
  border-top-color: var(--gold);
  background: linear-gradient(150deg, var(--ink-2) 0%, var(--ink) 100%);
}
.page-about .team-card--wide .team-title {
  color: var(--paper);
}
.page-about .team-card--wide .team-count {
  color: var(--gold-soft);
}
.page-about .team-card--wide p {
  color: rgba(245, 241, 230, .78);
}
.page-about .team-addr {
  margin-top: 14px !important;
  padding-top: 12px;
  border-top: 1px solid rgba(198, 163, 74, .3);
  color: var(--gold-soft) !important;
  font-size: 13.5px !important;
  letter-spacing: .03em;
}

/* ---------- 来源与合作 ---------- */
.page-about .about-sources {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}
.page-about .sources-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.page-about .tag-group-title {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--steel);
  text-transform: uppercase;
}
.page-about .tag-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-about .tag {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--fg-muted);
  font-size: 14px;
  letter-spacing: .03em;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background 160ms var(--ease);
}
.page-about .tag:hover {
  border-color: var(--gold);
  background: var(--accent-soft);
  color: var(--accent-ink);
}
.page-about .tag--region {
  border-color: var(--gold);
  background: var(--ink);
  color: var(--gold-soft);
}
.page-about .tag--region:hover {
  background: var(--ink-2);
  color: var(--paper);
}
.page-about .sources-figure {
  margin: 0;
  border: 1px solid var(--border);
  background: var(--surface);
}
.page-about .sources-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}
.page-about .sources-figure .media-caption {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 13px;
  letter-spacing: .03em;
}
.page-about .sources-note {
  margin-top: 28px;
  padding: 24px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--steel);
}
.page-about .sources-note-title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 800;
  color: var(--fg);
}
.page-about .sources-note p {
  margin: 0 0 10px;
  color: var(--fg-muted);
  font-size: 15.5px;
  line-height: 1.78;
  max-width: 68ch;
}
.page-about .sources-note p:last-child {
  margin-bottom: 0;
}

/* ---------- 行业认可 ---------- */
.page-about .about-honor {
  background: var(--bg);
}
.page-about .honor-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--border);
}
.page-about .honor-item {
  padding: 26px 0 26px 22px;
  border-bottom: 1px solid var(--border);
  border-left: 2px solid var(--gold);
}
.page-about .honor-year {
  margin: 0 0 10px;
  color: var(--accent-ink);
  font-size: 14px;
  letter-spacing: .08em;
}
.page-about .honor-title {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--fg);
}
.page-about .honor-item p {
  margin: 0;
  color: var(--fg-muted);
  font-size: 15.5px;
  line-height: 1.78;
  max-width: 62ch;
}

/* ---------- 收束 ---------- */
.page-about .about-cta {
  background: linear-gradient(150deg, var(--ink) 0%, var(--ink-2) 100%);
  border-top: 1px solid var(--gold);
}
.page-about .about-cta-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: center;
}
.page-about .about-cta .eyebrow {
  color: var(--gold);
}
.page-about .about-cta .section-title {
  color: var(--paper);
  margin: 10px 0 12px;
}
.page-about .about-cta .lead {
  color: rgba(245, 241, 230, .76);
}
.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-cta-actions .btn--ghost {
  color: var(--paper);
  border-color: rgba(232, 216, 166, .42);
}
.page-about .about-cta-actions .btn--ghost:hover,
.page-about .about-cta-actions .btn--ghost:focus-visible {
  border-color: var(--gold-soft);
  background: rgba(232, 216, 166, .1);
}

/* ---------- 通用内联链接 ---------- */
.page-about .inline-link {
  color: var(--accent-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}
.page-about .inline-link:hover,
.page-about .inline-link:focus-visible {
  color: var(--red);
  border-bottom-color: var(--red);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-about .hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .daily-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .team-card--wide {
    grid-column: 1 / -1;
  }
  .page-about .year-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-inner {
    grid-template-columns: 1.05fr .95fr;
    gap: 56px;
  }
  .page-about .about-years-grid {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
  .page-about .year-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }
  .page-about .year-rail-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
    border-left: 1px solid var(--border-strong);
  }
  .page-about .year-tick {
    width: 100%;
    justify-content: flex-start;
    border: 0;
    border-left: 3px solid transparent;
    background: transparent;
    margin-left: -1px;
    padding: 11px 10px 11px 14px;
  }
  .page-about .year-tick:hover,
  .page-about .year-tick:focus-visible {
    border-left-color: var(--gold);
    background: var(--surface-2);
  }
  .page-about .proc-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .proc-item {
    border-right: 1px solid rgba(198, 163, 74, .28);
  }
  .page-about .proc-item:nth-child(2n) {
    border-right: 0;
  }
  .page-about .proc-item:nth-last-child(-n + 2) {
    border-bottom: 0;
  }
  .page-about .sources-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }
  .page-about .honor-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 40px;
    border-bottom: 1px solid var(--border);
  }
  .page-about .honor-item {
    border-bottom: 0;
  }
  .page-about .about-cta-inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 40px;
  }
  .page-about .about-cta-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1080px) {
  .page-about .proc-bar {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .proc-item {
    border-right: 1px solid rgba(198, 163, 74, .28);
    border-bottom: 0;
  }
  .page-about .proc-item:nth-child(2n) {
    border-right: 1px solid rgba(198, 163, 74, .28);
  }
  .page-about .proc-item:last-child {
    border-right: 0;
  }
  .page-about .year-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 1280px) {
  .page-about .daily-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .daily-card:hover {
    transform: none;
  }
  .page-about .year-tick,
  .page-about .proc-q,
  .page-about .daily-card,
  .page-about .tag,
  .page-about .jump-link,
  .page-about .inline-link {
    transition: opacity 160ms linear;
  }
}
<<<END>>>