.page-about {
  --about-cut: 14px;
  --about-gap: clamp(16px, 2.4vw, 28px);
}

.page-about p {
  margin: 0 0 14px;
  line-height: 1.75;
}

.page-about h2 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.01em;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.28;
  margin: 0 0 16px;
  color: var(--ink-text);
}

.page-about h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.45;
  margin: 0 0 6px;
  color: inherit;
}

.page-about .about-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin: 0 0 14px;
  color: var(--ink-panel);
}

.page-about .about-kicker::before {
  content: "";
  width: 24px;
  height: 1px;
  background: currentColor;
}

.page-about .about-figure {
  margin: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0 var(--about-cut) 0 var(--about-cut);
  border: 1px solid var(--rule-dark);
  object-fit: cover;
}

.page-about .about-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-text);
  opacity: 0.72;
}

/* ============ 首屏 ============ */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(24px, 4vw, 48px) clamp(36px, 5vw, 64px);
  color: var(--silver);
  background:
    radial-gradient(120% 90% at 82% -10%, rgba(46, 143, 122, 0.26), transparent 62%),
    radial-gradient(90% 70% at 8% 110%, rgba(212, 168, 44, 0.12), transparent 60%),
    var(--ink-deep);
  border-bottom: 1px solid var(--rule-gold);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(195, 204, 198, 0.16) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.45;
  pointer-events: none;
}

.page-about .about-hero > .container {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .breadcrumbs,
.page-about .about-hero .breadcrumbs a {
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  opacity: 0.8;
}

.page-about .about-hero .breadcrumbs {
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-about h1 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.01em;
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.22;
  margin: 0 0 18px;
  color: var(--paper);
}

.page-about .about-hero .about-kicker {
  color: var(--gold);
}

.page-about .about-hero__lede {
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--silver);
  max-width: 62ch;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-hero__dial {
  display: none;
  border-left: 1px solid var(--rule-gold);
  padding-left: 18px;
}

.page-about .dial-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-block: 10px;
  border-bottom: 1px dashed var(--rule);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--silver);
}

.page-about .dial-row b {
  font-weight: 600;
  font-size: 17px;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-about .dial-row--live b {
  color: var(--gold-hi);
}

.page-about .about-band {
  margin-top: clamp(28px, 4vw, 48px);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  align-items: baseline;
  border-top: 1px solid var(--rule-gold);
  border-bottom: 1px solid var(--rule-gold);
  padding-block: 14px;
}

.page-about .about-band .data-key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver);
  opacity: 0.75;
}

.page-about .about-band .data-value {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

/* ============ 深底分区 ============ */
.page-about .about-dark {
  background:
    radial-gradient(100% 80% at 100% 0%, rgba(20, 56, 45, 0.9), transparent 70%),
    var(--ink-deep);
  color: var(--silver);
}

.page-about .about-dark h2,
.page-about .about-dark h3 {
  color: var(--paper);
}

.page-about .about-dark .about-kicker {
  color: var(--gold);
}

.page-about .about-dark .about-lede,
.page-about .about-dark p {
  color: var(--silver);
}

.page-about .about-dark .about-figure img {
  border-color: var(--rule-gold);
}

.page-about .about-dark .about-figure figcaption {
  color: var(--silver);
  opacity: 0.72;
}

.page-about .about-dark a {
  color: var(--gold-hi);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-lede {
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.8;
}

/* ============ 起点与主张 ============ */
.page-about .about-origin {
  background: var(--paper);
  color: var(--ink-text);
}

.page-about .about-split {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-about .about-tenets {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-about .about-tenets li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  padding-block: 16px;
  border-top: 1px solid var(--rule-dark);
}

.page-about .about-tenets li:last-child {
  border-bottom: 1px solid var(--rule-dark);
}

.page-about .about-tenets .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  padding-top: 3px;
}

.page-about .about-tenets p {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-text);
  opacity: 0.86;
}

.page-about .about-figure--square img {
  aspect-ratio: 1 / 1;
}

/* ============ 时间轴 ============ */
.page-about .about-track {
  background-image:
    linear-gradient(135deg, transparent 49.6%, rgba(212, 168, 44, 0.16) 49.6%, rgba(212, 168, 44, 0.16) 50.4%, transparent 50.4%);
  background-size: 26px 26px;
  background-repeat: repeat;
  background-position: top right;
}

.page-about .about-timeline-media {
  margin: 24px 0 clamp(28px, 4vw, 44px);
}

.page-about .about-timeline-media img {
  aspect-ratio: 2 / 1;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .tl-item {
  position: relative;
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 18px;
  padding-bottom: 28px;
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: 71px;
  top: 10px;
  bottom: -6px;
  width: 1px;
  background: var(--rule-gold);
}

.page-about .tl-item::after {
  content: "";
  position: absolute;
  left: 68px;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-about .tl-item:last-child::before {
  bottom: 12px;
  background: linear-gradient(var(--rule-gold), transparent);
}

.page-about .tl-mark {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gold);
  text-align: left;
  padding-top: 2px;
  font-variant-numeric: tabular-nums;
}

.page-about .tl-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
}

.page-about .tl-body a {
  color: var(--gold-hi);
}

/* ============ 权益对照表 ============ */
.page-about .about-ledger-section {
  border-top: 1px solid var(--rule);
}

.page-about .about-table-wrap {
  margin-top: 24px;
  overflow-x: auto;
  border: 1px solid var(--rule-gold);
  border-radius: 0 var(--about-cut) 0 var(--about-cut);
  -webkit-overflow-scrolling: touch;
}

.page-about .about-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 13.5px;
  font-variant-numeric: tabular-nums;
}

.page-about .about-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--ink-panel);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--gold);
  text-align: left;
  padding: 14px 14px;
  border-bottom: 1px solid var(--rule-gold);
  white-space: nowrap;
}

.page-about .about-table thead th.col-crown {
  color: var(--gold-hi);
}

.page-about .about-table tbody th {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--paper);
  text-align: left;
  padding: 13px 14px;
  border-bottom: 1px solid rgba(195, 204, 198, 0.12);
  white-space: nowrap;
}

.page-about .about-table tbody td {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--silver);
  padding: 13px 14px;
  border-bottom: 1px solid rgba(195, 204, 198, 0.12);
  white-space: nowrap;
}

.page-about .about-table tbody tr:nth-child(even) th,
.page-about .about-table tbody tr:nth-child(even) td {
  background: rgba(20, 56, 45, 0.55);
}

.page-about .about-table tbody td.is-diff {
  box-shadow: inset 3px 0 0 var(--cinnabar);
  color: var(--paper);
}

.page-about .about-table tbody td.col-crown,
.page-about .about-table tbody th + td:last-child {
  background-color: rgba(212, 168, 44, 0.08);
}

.page-about .about-table tbody tr:last-child th,
.page-about .about-table tbody tr:last-child td {
  border-bottom: none;
}

.page-about .about-table-note {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
  max-width: 68ch;
}

/* ============ 自查路径 ============ */
.page-about .about-records {
  background: var(--paper);
  color: var(--ink-text);
}

.page-about .about-steps {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: var(--about-gap);
}

.page-about .step {
  position: relative;
  padding: 20px 18px 18px;
  background: #fffdf6;
  border: 1px solid var(--rule-dark);
  border-radius: 0 var(--about-cut) 0 var(--about-cut);
  border-top: 3px solid var(--gold);
}

.page-about .step-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cinnabar);
  margin-bottom: 8px;
}

.page-about .step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-text);
  opacity: 0.88;
}

.page-about .about-records a {
  color: var(--ink-panel);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--gold);
}

/* ============ 团队 ============ */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-about .about-team__text .about-figure {
  margin-top: 22px;
}

.page-about .about-team__text .about-figure img {
  aspect-ratio: 4 / 3;
}

.page-about .about-team__chart {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 24px 18px;
  border: 1px solid var(--rule-gold);
  border-radius: 0 var(--about-cut) 0 var(--about-cut);
  background: rgba(20, 56, 45, 0.6);
}

.page-about .about-ring {
  width: 100%;
  max-width: 250px;
  height: auto;
  display: block;
}

.page-about .about-ring .ring-track,
.page-about .about-ring .ring-a,
.page-about .about-ring .ring-b {
  fill: none;
  stroke-width: 14;
}

.page-about .about-ring .ring-track {
  stroke: rgba(195, 204, 198, 0.16);
}

.page-about .about-ring .ring-a {
  stroke: var(--teal);
  stroke-dasharray: 200 165;
  transform: rotate(-90deg);
  transform-origin: 80px 80px;
}

.page-about .about-ring .ring-b {
  stroke: var(--gold);
  stroke-dasharray: 147 218;
  stroke-dashoffset: -200;
  transform: rotate(-90deg);
  transform-origin: 80px 80px;
}

.page-about .about-ring .ring-num {
  fill: var(--paper);
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 600;
  text-anchor: middle;
}

.page-about .about-ring .ring-cap {
  fill: var(--silver);
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-anchor: middle;
}

.page-about .about-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  display: grid;
  gap: 10px;
}

.page-about .about-legend li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--silver);
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--rule);
}

.page-about .about-legend li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-about .about-legend b {
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-about .swatch {
  width: 10px;
  height: 10px;
  transform: rotate(45deg);
  flex: none;
}

.page-about .swatch--teal {
  background: var(--teal);
}

.page-about .swatch--gold {
  background: var(--gold);
}

/* ============ 行业积累 ============ */
.page-about .about-honors {
  background: var(--paper);
  color: var(--ink-text);
}

.page-about .about-facts {
  display: grid;
  gap: var(--about-gap);
  margin-top: 26px;
}

.page-about .fact {
  padding: 20px 18px;
  background: #fffdf6;
  border: 1px solid var(--rule-dark);
  border-left: 3px solid var(--ink-panel);
  border-radius: 0 var(--about-cut) 0 var(--about-cut);
}

.page-about .fact-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink-panel);
  font-variant-numeric: tabular-nums;
  margin-bottom: 8px;
}

.page-about .fact p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-text);
  opacity: 0.84;
}

/* ============ 结尾 ============ */
.page-about .about-cta {
  border-top: 1px solid var(--rule-gold);
}

.page-about .about-cta__inner {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}

.page-about .about-cta__inner p {
  max-width: 62ch;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.page-about .about-textlink {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--silver) !important;
  text-decoration: none !important;
  border-bottom: 1px solid var(--rule-gold);
  padding-bottom: 2px;
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-about .about-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-about .about-hero__dial {
    display: block;
  }

  .page-about .about-band {
    gap: 8px 32px;
  }

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

  .page-about .about-split__text {
    order: 1;
  }

  .page-about .about-split .about-figure {
    order: 2;
    position: sticky;
    top: 96px;
  }

  .page-about .tl-item {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 26px;
  }

  .page-about .tl-item::before {
    left: 108px;
  }

  .page-about .tl-item::after {
    left: 105px;
  }

  .page-about .about-table {
    min-width: 0;
    font-size: 14px;
  }

  .page-about .about-table thead th,
  .page-about .about-table tbody th {
    padding-inline: 18px;
  }

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

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .about-team__chart {
    position: sticky;
    top: 96px;
  }

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

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

  .page-about .about-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1200px) {
  .page-about .about-timeline-media img {
    aspect-ratio: 3 / 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-ring .ring-a,
  .page-about .about-ring .ring-b {
    transition: none;
  }
}