.page-about {
  --about-max: 1160px;
  --about-rail: 78px;
  --about-soft: #46545F;
  --about-faint: #6B7A85;
  --about-hair: rgba(46, 55, 66, 0.22);
  --about-hair-soft: rgba(46, 55, 66, 0.14);

  position: relative;
  background: var(--paper);
  color: var(--deep);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .about-wrap {
  max-width: var(--about-max);
  margin: 0 auto;
  padding: 0 clamp(18px, 4vw, 44px) clamp(48px, 7vw, 86px);
}

/* ---------- 阅读进度 ---------- */
.page-about .about-progress {
  position: sticky;
  top: var(--header-h-condensed);
  z-index: 6;
  height: 2px;
  background: rgba(46, 55, 66, 0.18);
}
.page-about .about-progress > span {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
}
@supports (animation-timeline: scroll()) {
  .page-about .about-progress > span {
    animation: about-progress linear both;
    animation-timeline: scroll(root block);
  }
}
@keyframes about-progress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-top: clamp(26px, 4vw, 46px);
}

.page-about .about-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(22px, 3vw, 34px);
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--about-faint);
}
.page-about .about-crumb a {
  color: var(--moss);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.page-about .about-crumb a:hover,
.page-about .about-crumb a:focus-visible {
  color: var(--clay);
  border-bottom-color: var(--clay);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

.page-about .about-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--clay);
}

.page-about .about-hero h1 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.012em;
  color: var(--deep);
}

.page-about .about-hero__lead {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: 16.5px;
  line-height: 1.92;
  color: var(--about-soft);
}

.page-about .about-hero__figure {
  margin: 0;
  border: 1px solid var(--about-hair);
  background: var(--deep);
  padding: 0;
}
.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
  opacity: 0.92;
}
.page-about .about-hero__figure figcaption {
  padding: 10px 14px 12px;
  font-family: var(--font-head);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-about .about-stats {
  list-style: none;
  margin: clamp(30px, 5vw, 52px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--about-hair);
  border-bottom: 1px solid var(--about-hair);
}
.page-about .about-stats__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 6px 20px;
  border-bottom: 1px solid var(--about-hair-soft);
}
.page-about .about-stats__item:nth-child(2n) {
  padding-left: 16px;
  border-left: 1px solid var(--about-hair-soft);
}
.page-about .about-stats__item:nth-last-child(-n + 2) {
  border-bottom: 0;
}
.page-about .about-stats__num {
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(30px, 4.6vw, 46px);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--deep);
  font-variant-numeric: tabular-nums;
}
.page-about .about-stats__item:first-child .about-stats__num {
  color: var(--clay);
}
.page-about .about-stats__item:nth-child(4) .about-stats__num {
  color: var(--moss);
}
.page-about .about-stats__label {
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--about-faint);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-chapter {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 26px);
  padding: clamp(42px, 6.5vw, 80px) 0;
  border-top: 1px solid var(--about-hair);
}

.page-about .about-chapter__num {
  margin: 0;
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(30px, 4.2vw, 44px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--clay);
  font-variant-numeric: tabular-nums;
}

.page-about .about-chapter__title {
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(23px, 3.3vw, 36px);
  line-height: 1.22;
  letter-spacing: -0.008em;
  color: var(--deep);
  max-width: 22ch;
}

.page-about .about-chapter__content p {
  margin: 0 0 18px;
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.92;
  color: var(--about-soft);
}
.page-about .about-chapter__content p:last-child {
  margin-bottom: 0;
}

.page-about .about-note {
  margin-top: 22px;
  padding-left: 16px;
  border-left: 2px solid var(--moss);
  font-size: 15px !important;
  line-height: 1.85 !important;
  color: var(--about-faint) !important;
}

/* ---------- 01 场景 ---------- */
.page-about .scene-grid {
  display: grid;
  gap: 1px;
  margin: 30px 0 0;
  background: var(--about-hair);
  border-top: 1px solid var(--about-hair);
  border-bottom: 1px solid var(--about-hair);
}
.page-about .scene {
  background: var(--paper);
  padding: 22px 20px 24px;
}
.page-about .scene h3 {
  margin: 12px 0 10px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  color: var(--deep);
}
.page-about .scene p {
  margin: 0;
  max-width: 34ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-soft);
}

.page-about .tag {
  display: inline-block;
  padding: 4px 10px;
  background: var(--moss);
  color: var(--paper);
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: var(--radius);
}

/* ---------- 02 团队 ---------- */
.page-about .team-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
  margin-top: 30px;
  align-items: start;
}

.page-about .team-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-about .team-item {
  display: grid;
  grid-template-columns: 6px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 14px 18px 0;
  border-bottom: 1px solid var(--about-hair-soft);
  transition: background-color 0.25s var(--ease), padding-left 0.25s var(--ease);
}
.page-about .team-item__bar {
  display: block;
  width: 6px;
  height: 100%;
  min-height: 44px;
  border-radius: 3px;
  background: currentColor;
  transform-origin: top center;
  transition: transform 0.28s var(--ease);
}
.page-about .team-item--editor { color: var(--moss); }
.page-about .team-item--viz { color: var(--clay); }
.page-about .team-item--clip { color: #1FB79C; }
.page-about .team-item--support { color: var(--orange); }

.page-about .team-item__body h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  color: var(--deep);
  transition: color 0.25s var(--ease);
}
.page-about .team-item__body p {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-soft);
}
.page-about .team-item:hover,
.page-about .team-item:focus-within {
  background: rgba(46, 55, 66, 0.055);
  padding-left: 12px;
}
.page-about .team-item:hover .team-item__bar,
.page-about .team-item:focus-within .team-item__bar {
  transform: scaleY(1.06);
}
.page-about .team-item:hover .team-item__body h3,
.page-about .team-item:focus-within .team-item__body h3 {
  color: currentColor;
}

.page-about .about-figure {
  margin: 0;
  border: 1px solid var(--about-hair);
  background: var(--panel);
}
.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-figure--team img { aspect-ratio: 14 / 9; }
.page-about .about-figure--square img { aspect-ratio: 1 / 1; }
.page-about .about-figure figcaption {
  padding: 10px 14px 12px;
  font-family: var(--font-head);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--mist);
}

/* ---------- 03 数据流程 ---------- */
.page-about .flow {
  margin: 32px 0 0;
  padding: clamp(18px, 2.6vw, 28px) clamp(14px, 2.4vw, 26px) clamp(20px, 3vw, 30px);
  background: var(--deep);
  border: 1px solid var(--rock);
  border-radius: var(--radius);
}

.page-about .flow__chart {
  display: block;
  width: 100%;
  height: clamp(56px, 9vw, 96px);
}
.page-about .flow__line {
  stroke: var(--cyan);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}
.page-about .flow__dot {
  fill: var(--orange);
}

.page-about .flow__steps {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
.page-about .flow__step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 2px 12px;
  padding-top: 12px;
  border-top: 1px solid var(--rock);
}
.page-about .flow__i {
  grid-row: 1 / span 2;
  font-family: var(--font-num);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.3;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}
.page-about .flow__step strong {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.03em;
  color: var(--paper);
}
.page-about .flow__step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 04 两大栏目 ---------- */
.page-about .pillar-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 30px 0 0;
  background: var(--about-hair);
  border: 1px solid var(--about-hair);
}
.page-about .pillar {
  background: var(--paper);
  padding: clamp(22px, 3vw, 32px) clamp(18px, 2.6vw, 28px) clamp(24px, 3vw, 34px);
}
.page-about .pillar--accent {
  background: #EBE7DB;
}
.page-about .pillar__kicker {
  display: inline-block;
  margin-bottom: 12px;
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--moss);
}
.page-about .pillar h3 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.3;
  color: var(--deep);
}
.page-about .pillar p {
  margin: 0 0 14px;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--about-soft);
}
.page-about .pillar__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 4px;
  padding-bottom: 2px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--clay);
  text-decoration: none;
  border-bottom: 1px solid var(--clay);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-about .pillar__link:hover,
.page-about .pillar__link:focus-visible {
  color: var(--deep);
  border-bottom-color: var(--deep);
}

.page-about .about-figure--square {
  margin-top: clamp(26px, 3.4vw, 40px);
}

/* ---------- 05 时间轴 ---------- */
.page-about .timeline {
  margin: 30px 0 0;
  padding-left: 22px;
  border-left: 1px solid var(--rock);
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 26px 4px;
}
.page-about .timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .timeline__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  min-height: 44px;
  padding: 6px 0;
  cursor: pointer;
  list-style: none;
}
.page-about .timeline__summary::-webkit-details-marker { display: none; }
.page-about .timeline__summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 4px;
}

.page-about .timeline__dot {
  position: absolute;
  left: -27px;
  top: 16px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--clay);
  box-shadow: 0 0 0 4px var(--paper);
}

.page-about .timeline__year {
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1;
  color: var(--clay);
  font-variant-numeric: tabular-nums;
}

.page-about .timeline__label {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(17px, 2.1vw, 21px);
  letter-spacing: 0.01em;
  color: var(--deep);
}

.page-about .timeline__item[open] .timeline__dot {
  background: var(--orange);
}

.page-about .timeline__text {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--about-soft);
}

.page-about .rhythm {
  margin: clamp(30px, 4vw, 46px) 0 0;
  padding-top: clamp(22px, 3vw, 30px);
  border-top: 1px solid var(--about-hair-soft);
}
.page-about .rhythm__title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(19px, 2.3vw, 24px);
  line-height: 1.35;
  color: var(--deep);
}
.page-about .rhythm__list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-hair-soft);
  border-top: 1px solid var(--about-hair-soft);
  border-bottom: 1px solid var(--about-hair-soft);
}
.page-about .rhythm__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  background: var(--paper);
}
.page-about .rhythm__row dt {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: 0.04em;
  color: var(--moss);
}
.page-about .rhythm__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-soft);
}

/* ---------- CTA ---------- */
.page-about .about-cta {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: clamp(36px, 5vw, 60px);
  padding: clamp(26px, 4vw, 44px);
  background: var(--panel);
  border: 1px solid var(--rock);
  border-radius: var(--radius);
}
.page-about .about-cta__text h2 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 2.8vw, 30px);
  line-height: 1.3;
  color: var(--paper);
}
.page-about .about-cta__text p {
  margin: 0;
  max-width: 54ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--mist);
}
.page-about .about-cta .btn {
  align-self: flex-start;
  min-height: 44px;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-stats__item,
  .page-about .about-stats__item:nth-child(2n) {
    padding: 20px 14px 22px;
    border-bottom: 0;
    border-left: 1px solid var(--about-hair-soft);
  }
  .page-about .about-stats__item:first-child {
    border-left: 0;
    padding-left: 0;
  }
  .page-about .scene-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
  .page-about .flow__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 22px;
  }
  .page-about .rhythm__row {
    grid-template-columns: 130px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
  .page-about .about-cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .page-about .about-cta .btn {
    align-self: center;
    flex: none;
  }
}

@media (min-width: 860px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
  .page-about .about-chapter {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(20px, 3vw, 40px);
  }
  .page-about .about-chapter__num {
    position: sticky;
    top: calc(var(--header-h-condensed) + 18px);
  }
  .page-about .team-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
  .page-about .pillar-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  }
  .page-about .flow__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-about .flow__steps {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .page-about .flow__step {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto auto;
    gap: 6px;
  }
  .page-about .flow__i {
    grid-row: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-progress > span {
    animation: none;
    transform: scaleX(1);
    opacity: 0.5;
  }
  .page-about .team-item,
  .page-about .team-item__bar,
  .page-about .team-item__body h3 {
    transition: none;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</result>