.page-about {
  --about-wrap: 1180px;
  --about-pad: 20px;
  background:
    radial-gradient(900px 420px at 92% -6%, rgba(216, 162, 58, .16), transparent 62%),
    radial-gradient(700px 380px at -10% 24%, rgba(76, 110, 120, .10), transparent 66%),
    var(--cream);
  color: var(--char);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  overflow-x: hidden;
}

.page-about .about-inner {
  width: 100%;
  max-width: var(--about-wrap);
  margin: 0 auto;
  padding: 0 var(--about-pad);
}

.page-about .about-section {
  padding: 52px 0;
}

.page-about .section--sand {
  background: var(--sand);
}

.page-about .section--stone {
  background: linear-gradient(180deg, rgba(76, 110, 120, .12), rgba(76, 110, 120, .02));
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 22px 0 46px;
}

.page-about .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 24px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--stone);
}

.page-about .crumbs a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

.page-about .crumbs-sep {
  color: rgba(31, 61, 53, .35);
}

.page-about .hero-grid {
  display: grid;
  gap: 30px;
}

.page-about .eyebrow {
  margin: 0 0 10px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .22em;
  color: var(--red);
}

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

.page-about h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.2vw, 54px);
  line-height: 1.18;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-about .h1-mark {
  background-image: linear-gradient(180deg, transparent 64%, rgba(216, 162, 58, .55) 64%, rgba(216, 162, 58, .55) 94%, transparent 94%);
}

.page-about .lede {
  margin: 0;
  max-width: 46em;
  font-size: 15.5px;
  line-height: 1.8;
  color: #3A352F;
}

.page-about .hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 12px;
  margin-top: 28px;
}

.page-about .fact {
  padding-top: 10px;
  border-top: 2px solid var(--line);
}

.page-about .fact-num {
  display: block;
  font-size: clamp(19px, 3.4vw, 26px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
}

.page-about .fact-label {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--stone);
}

.page-about .hero-index {
  padding: 16px 16px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-1);
}

.page-about .index-title {
  margin: 0 0 10px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .22em;
  color: var(--red);
}

.page-about .hero-index ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .hero-index a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 8px;
  border-bottom: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  color: var(--ink);
  text-decoration: none;
  transition: background .2s ease, color .2s ease;
}

.page-about .hero-index li:last-child a {
  border-bottom: 0;
}

.page-about .hero-index a:hover,
.page-about .hero-index a:focus-visible {
  background: var(--sand);
  color: var(--red);
}

.page-about .idx-num {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--gold);
}

/* ---------- 章节头 ---------- */
.page-about .sec-head {
  max-width: 46em;
  margin-bottom: 30px;
}

.page-about .section-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 4.6vw, 36px);
  line-height: 1.32;
  color: var(--ink);
}

.page-about .section-title--light {
  color: #FFF8EC;
}

/* ---------- 起点 ---------- */
.page-about .origin-grid {
  display: grid;
  gap: 24px;
}

.page-about .origin-lead {
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid var(--gold);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.page-about .origin-body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: #3A352F;
}

.page-about .origin-points {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-about .origin-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--ink);
}

.page-about .origin-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 8px;
  background: var(--red);
  border-radius: 2px;
  transform: rotate(45deg);
}

/* ---------- 价值坐标 ---------- */
.page-about .coords-wrap {
  display: grid;
  gap: 18px;
}

.page-about .coord {
  padding: 22px 20px 24px;
  border-top: 3px solid var(--coord-accent, var(--red));
  border-radius: 4px 4px var(--radius) var(--radius);
  background: rgba(255, 255, 255, .72);
  box-shadow: var(--shadow-1);
}

.page-about .coord-num {
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--coord-accent, var(--red));
}

.page-about .coord-title {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .coord-body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: #3A352F;
}

.page-about .coord-scene {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--sand);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ink);
}

.page-about .coord-scene b {
  color: var(--coord-accent, var(--red));
  font-weight: 700;
}

/* ---------- 时间轴 ---------- */
.page-about .journey-grid {
  display: grid;
  gap: 28px;
}

.page-about .tl-list {
  margin: 0;
  padding: 0;
  list-style: none;
  position: relative;
}

.page-about .tl-list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--red), var(--stone) 52%, rgba(76, 110, 120, .18));
}

.page-about .tl-item {
  position: relative;
  padding-left: 34px;
  margin-bottom: 26px;
}

.page-about .tl-item:last-child {
  margin-bottom: 0;
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 16px;
  height: 16px;
  border: 3px solid var(--red);
  border-radius: 50%;
  background: var(--cream);
  box-shadow: 0 0 0 4px rgba(179, 38, 30, .10);
}

.page-about .tl-year {
  margin: 0;
  font-size: clamp(20px, 4.4vw, 28px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .05em;
  color: var(--stone);
}

.page-about .tl-title {
  margin: 4px 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .tl-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: #3A352F;
}

.page-about .tl-fold {
  margin-top: 10px;
}

.page-about .tl-fold summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--stone);
}

.page-about .tl-fold summary:hover {
  color: var(--red);
}

.page-about .tl-fold .fold-body {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.8;
  color: #4A443D;
}

.page-about .tl-fold .fold-body p {
  margin: 0;
}

.page-about .about-figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(140deg, var(--sand), #E4D8C4);
  box-shadow: var(--shadow-1);
}

.page-about .media-frame.about-figure {
  aspect-ratio: auto;
  padding: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-figure--poster img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.page-about .media-caption {
  padding: 10px 14px 12px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--stone);
}

/* ---------- 团队 ---------- */
.page-about .team-panel {
  padding: 28px 20px 30px;
  border-radius: 24px;
  background-color: var(--ink);
  background-image:
    radial-gradient(420px 260px at 90% 0%, rgba(216, 162, 58, .28), transparent 66%),
    radial-gradient(360px 280px at 0% 100%, rgba(179, 38, 30, .34), transparent 68%);
  color: #F7F2E7;
  box-shadow: var(--shadow-2);
}

.page-about .team-grid {
  display: grid;
  gap: 30px;
}

.page-about .team-lead {
  margin: 0 0 20px;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(247, 242, 231, .82);
}

.page-about .team-figure {
  box-shadow: none;
  border-radius: var(--radius-sm);
}

.page-about .team-figure .media-caption {
  color: rgba(247, 242, 231, .66);
  background: rgba(0, 0, 0, .16);
}

.page-about .team-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 12px;
  margin-top: 22px;
}

.page-about .stat {
  padding-top: 9px;
  border-top: 1px solid rgba(216, 162, 58, .42);
}

.page-about .stat-num {
  display: block;
  font-size: clamp(20px, 3.6vw, 26px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gold-soft);
}

.page-about .stat-label {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  letter-spacing: .04em;
  color: rgba(247, 242, 231, .74);
}

.page-about .flow-intro {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(247, 242, 231, .86);
}

.page-about .flow {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-about .flow-step {
  padding: 4px 0 4px 14px;
  border-left: 2px solid rgba(216, 162, 58, .55);
}

.page-about .flow-num {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--gold-soft);
}

.page-about .flow-name {
  display: block;
  margin: 2px 0 4px;
  font-size: 15px;
  font-weight: 600;
  color: #FFF8EC;
}

.page-about .flow-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(247, 242, 231, .76);
}

.page-about .flow-tail {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(247, 242, 231, .74);
}

/* ---------- 生态 ---------- */
.page-about .eco-grid {
  display: grid;
  gap: 26px;
}

.page-about .eco-body > p {
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.85;
  color: #3A352F;
}

.page-about .eco-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .eco-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .74);
}

.page-about .eco-dot {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: .5em;
  border-radius: 2px;
  background: var(--stone);
  transform: rotate(45deg);
}

.page-about .eco-item strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.page-about .eco-item p {
  margin: 2px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: #4A443D;
}

.page-about .honor {
  margin-top: 22px;
  padding: 18px 20px 20px;
  border: 1px solid rgba(216, 162, 58, .55);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(216, 162, 58, .20), rgba(250, 246, 238, .55));
}

.page-about .honor-year {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--red);
}

.page-about .honor-title {
  margin: 6px 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-about .honor-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: #4A443D;
}

/* ---------- 服务与行动 ---------- */
.page-about .promise {
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-about .promise-item {
  padding-top: 14px;
  border-top: 2px solid var(--stone);
}

.page-about .promise-item h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .promise-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #4A443D;
}

.page-about .cta-band {
  display: grid;
  gap: 20px;
  padding: 28px 22px 30px;
  border-radius: 24px;
  background-image: linear-gradient(112deg, var(--red) 0%, var(--red-deep) 56%, #5F2A24 100%);
  color: #FFF6EA;
  box-shadow: var(--shadow-2);
}

.page-about .cta-band h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(21px, 4vw, 28px);
  font-weight: 700;
  line-height: 1.35;
  color: #FFF6EA;
}

.page-about .cta-band p {
  margin: 0;
  max-width: 38em;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(255, 246, 234, .88);
}

.page-about .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .cta-actions .btn {
  flex: 1 1 auto;
  min-width: 0;
  text-align: center;
}

.page-about .text-link {
  color: var(--red);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(179, 38, 30, .38);
}

.page-about .text-link:hover,
.page-about .text-link:focus-visible {
  border-bottom-color: var(--red);
}

.page-about .text-link--light {
  color: var(--gold-soft);
  border-bottom-color: rgba(239, 212, 154, .5);
}

.page-about .text-link--light:hover,
.page-about .text-link--light:focus-visible {
  border-bottom-color: var(--gold-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 20px;
  }

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

@media (min-width: 900px) {
  .page-about {
    --about-pad: 32px;
  }

  .page-about .about-section {
    padding: 86px 0;
  }

  .page-about .about-hero {
    padding: 30px 0 64px;
  }

  .page-about .origin-grid {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 56px;
  }

  .page-about .coords-wrap {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    align-items: start;
  }

  .page-about .coord:nth-child(2) {
    margin-top: 32px;
  }

  .page-about .coord:nth-child(3) {
    margin-top: 14px;
  }

  .page-about .team-panel {
    padding: 48px 44px 50px;
  }

  .page-about .team-grid {
    grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
    gap: 48px;
  }

  .page-about .eco-grid {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .promise {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-about .cta-band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 44px;
    padding: 44px 48px;
  }

  .page-about .cta-actions {
    flex-wrap: nowrap;
  }
}

@media (min-width: 980px) {
  .page-about .hero-grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, .72fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .hero-index {
    position: sticky;
    top: 20px;
  }

  .page-about .journey-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 52px;
    align-items: start;
  }

  .page-about .journey-figure {
    position: sticky;
    top: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    animation: none !important;
  }
}

.page-about {
  --coord-accent: currentColor;
}