.page-about {
  background: var(--paper);
  color: var(--brown);
  font-family: var(--font-body);
}

.page-about .about-crumb {
  padding-top: var(--sp-5);
  padding-bottom: var(--sp-3);
}

.page-about .about-crumb .breadcrumb__link,
.page-about .about-crumb .breadcrumb__current {
  color: rgba(30, 23, 20, .72);
}

.page-about .about-crumb .breadcrumb__link:hover {
  color: var(--orange);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  background:
    radial-gradient(120% 90% at 12% 0%, var(--ink-soft) 0%, var(--ink) 56%, var(--ink-deep) 100%);
  color: var(--paper);
  padding: var(--sp-6) 0 var(--sp-8);
  border-bottom: 1px solid var(--line-dark);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-7);
  align-items: start;
}

.page-about .about-kicker {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
  margin: 0 0 var(--sp-4);
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 40px;
  line-height: 1.06;
  letter-spacing: -.02em;
  margin: 0 0 var(--sp-5);
  color: var(--paper);
}

.page-about .about-hero__lede {
  font-size: 16px;
  line-height: 1.75;
  color: rgba(244, 235, 221, .82);
  max-width: 46ch;
  margin: 0 0 var(--sp-5);
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
}

.page-about .about-anchors {
  display: flex;
  flex-direction: column;
  gap: 1px;
  border-top: 1px solid var(--line-dark);
}

.page-about .about-anchors__link {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-2) var(--sp-3) 0;
  border-bottom: 1px solid var(--line-dark-soft);
  color: rgba(244, 235, 221, .86);
  text-decoration: none;
  font-size: 14px;
  transition: color .25s var(--ease), padding-left .25s var(--ease);
}

.page-about .about-anchors__link:hover,
.page-about .about-anchors__link:focus-visible {
  color: var(--cyan);
  padding-left: var(--sp-2);
}

.page-about .about-anchors__num {
  font-size: 12px;
  color: var(--orange);
  min-width: 2.2em;
}

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

.page-about .about-hero__figure .figure__frame {
  background: var(--glass-fill-strong);
  border: 1px solid var(--line-dark);
}

.page-about .about-hero__figure .figure__caption {
  margin-top: var(--sp-3);
  color: var(--mist);
  font-size: 12px;
}

/* ---------- 通用分屏 ---------- */
.page-about .about-band {
  padding: var(--sp-8) 0;
}

.page-about .about-band--paper {
  background: var(--paper);
}


.page-about .about-band--ink {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-soft) 100%);
  color: var(--paper);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.page-about .about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-6);
}

.page-about .about-split__index {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--orange);
  margin: 0 0 var(--sp-3);
}

.page-about .about-split__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 26px;
  line-height: 1.18;
  letter-spacing: -.01em;
  margin: 0 0 var(--sp-4);
}

.page-about .about-split__note {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
  margin: 0;
  border-left: 2px solid var(--orange);
  padding-left: var(--sp-3);
}

.page-about .about-split__body p {
  font-size: 16px;
  line-height: 1.78;
  margin: 0 0 var(--sp-4);
}

.page-about .about-split__body .about-lead {
  font-size: 18px;
  line-height: 1.7;
  color: var(--brown);
}

.page-about .about-split--ink .about-split__title {
  color: var(--paper);
}

.page-about .about-split--ink .about-split__body .about-lead {
  color: var(--paper);
}

.page-about .about-split--ink .about-split__body p {
  color: rgba(244, 235, 221, .8);
}

.page-about .about-footnote {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(30, 23, 20, .66);
  border-top: 1px solid var(--line-paper);
  padding-top: var(--sp-3);
  margin-top: var(--sp-5) !important;
}

.page-about .about-split--ink .about-footnote {
  color: var(--mist);
  border-top-color: var(--line-dark);
}

/* ---------- 内容范围列表 ---------- */
.page-about .about-scope {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line-paper);
  margin: var(--sp-5) 0;
}

.page-about .about-scope__row {
  display: grid;
  grid-template-columns: 2.4em minmax(0, 1fr) 1.4em;
  gap: var(--sp-3);
  align-items: start;
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--line-paper);
  text-decoration: none;
  color: inherit;
  transition: background-color .25s var(--ease), padding-left .25s var(--ease);
}

.page-about .about-scope__row:hover,
.page-about .about-scope__row:focus-visible {
  background: var(--mint);
  padding-left: var(--sp-3);
}

.page-about .about-scope__num {
  font-size: 13px;
  color: var(--orange);
  padding-top: 2px;
}

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

.page-about .about-scope__name {
  display: block;
  font-weight: 600;
  font-size: 17px;
  margin-bottom: var(--sp-1);
}

.page-about .about-scope__desc {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(30, 23, 20, .7);
}

.page-about .about-scope__arrow {
  font-size: 16px;
  color: var(--orange);
  justify-self: end;
}

/* ---------- 维护机制 ---------- */
.page-about .about-team {
  background: var(--glass-fill);
  border: 1px solid var(--line-dark);
  border-left: 3px solid var(--cyan);
  padding: var(--sp-5);
  margin-bottom: var(--sp-5);
}

.page-about .about-team__label {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
  margin: 0 0 var(--sp-3);
}

.page-about .about-team__text {
  margin: 0 0 var(--sp-3) !important;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 235, 221, .88) !important;
}

.page-about .about-team__meta {
  font-size: 12px;
  color: var(--mist);
  margin: 0;
}

.page-about .about-steps {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.page-about .about-step {
  border: 1px solid var(--line-dark);
  background: rgba(11, 27, 43, .5);
}

.page-about .about-step[open] {
  border-color: rgba(53, 240, 208, .45);
}

.page-about .about-step__summary {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  list-style: none;
}

.page-about .about-step__summary::-webkit-details-marker {
  display: none;
}

.page-about .about-step__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-about .about-step[open] .about-step__summary::after {
  content: "−";
  color: var(--cyan);
}

.page-about .about-step__num {
  font-size: 12px;
  color: var(--mist);
}

.page-about .about-step__panel {
  padding: 0 var(--sp-4) var(--sp-4) var(--sp-4);
}

.page-about .about-step__panel p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(244, 235, 221, .76) !important;
}

.page-about .about-figure {
  margin: var(--sp-6) 0 0;
}

.page-about .about-figure .figure__frame {
  background: var(--ink-deep);
  border: 1px solid var(--line-dark);
}

.page-about .about-figure .figure__caption {
  margin-top: var(--sp-3);
  font-size: 12px;
  color: var(--mist);
}

/* ---------- 场景 ---------- */
.page-about .about-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
}

.page-about .about-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 28px;
  line-height: 1.16;
  margin: 0;
}

.page-about .about-head__lede {
  font-size: 16px;
  line-height: 1.75;
  color: rgba(30, 23, 20, .74);
  margin: 0;
  max-width: 56ch;
}

.page-about .about-scenes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-3);
}

.page-about .about-scene {
  position: relative;
  background: rgba(255, 255, 255, .5);
  border: 1px solid var(--line-paper);
  padding: var(--sp-5);
  transition: border-color .25s var(--ease), transform .25s var(--ease), background-color .25s var(--ease);
}

.page-about .about-scene::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--cyan));
  opacity: 0;
  transition: opacity .25s var(--ease);
}

.page-about .about-scene:hover {
  border-color: rgba(255, 107, 53, .5);
  background: #fff;
  transform: translateY(-2px);
}

.page-about .about-scene:hover::before {
  opacity: 1;
}

.page-about .about-scene__tag {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
  margin: 0 0 var(--sp-2);
}

.page-about .about-scene__title {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 var(--sp-2);
}

.page-about .about-scene__text {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(30, 23, 20, .72);
  margin: 0;
}

.page-about .about-figure--scenes .figure__frame {
  background: var(--mint);
  border: 1px solid var(--line-paper);
}

.page-about .about-figure--scenes .figure__caption {
  color: rgba(30, 23, 20, .6);
}

/* ---------- 结构角色分屏面板 ---------- */
.page-about .about-band--split {
  background: linear-gradient(90deg, var(--ink) 0%, var(--ink) 50%, var(--paper) 50%, var(--paper) 100%);
  padding: var(--sp-7) 0;
}

.page-about .about-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-5);
}

.page-about .about-panel__left {
  color: var(--paper);
  padding: var(--sp-2) 0 var(--sp-5);
}

.page-about .about-panel__stamp {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
  margin: 0 0 var(--sp-4);
}

.page-about .about-panel__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 28px;
  line-height: 1.16;
  margin: 0 0 var(--sp-4);
}

.page-about .about-panel__text {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 235, 221, .82);
  margin: 0;
  max-width: 42ch;
}

.page-about .about-panel__right {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--line-paper);
  border: 1px solid var(--line-paper);
}

.page-about .about-role {
  background: var(--paper);
  padding: var(--sp-4);
}

.page-about .about-role__label {
  font-size: 12px;
  letter-spacing: .1em;
  color: #0E6B5C;
  margin: 0 0 var(--sp-2);
}

.page-about .about-role__text {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(30, 23, 20, .78);
  margin: 0;
}

/* ---------- 联系 ---------- */
.page-about .about-band--last {
  border-top: 1px solid var(--line-paper);
}

.page-about .about-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-4);
  margin: var(--sp-5) 0;
}

.page-about .about-contact__label {
  font-size: 12px;
  letter-spacing: .1em;
  color: rgba(30, 23, 20, .6);
  margin: 0 0 var(--sp-2);
}

.page-about .about-contact .copy-chip {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--sp-2);
  width: 100%;
  text-align: left;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  padding: var(--sp-3) var(--sp-4);
  font-family: var(--font-mono);
  font-size: 14px;
  cursor: pointer;
  transition: border-color .25s var(--ease), background-color .25s var(--ease);
}

.page-about .about-contact .copy-chip:hover,
.page-about .about-contact .copy-chip:focus-visible {
  border-color: var(--cyan);
  background: var(--ink-soft);
}

.page-about .about-contact .copy-chip__value {
  word-break: break-all;
}

.page-about .about-contact .copy-chip__hint {
  font-size: 12px;
  color: var(--cyan);
}

.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .about-hero__title {
    font-size: 52px;
  }

  .page-about .about-head {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
    align-items: end;
  }

  .page-about .about-head__title {
    font-size: 34px;
  }

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

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

@media (min-width: 960px) {
  .page-about .about-hero {
    padding: var(--sp-8) 0 var(--sp-9);
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: var(--sp-8);
  }

  .page-about .about-hero__title {
    font-size: 60px;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
    gap: var(--sp-8);
  }

  .page-about .about-split__aside {
    position: sticky;
    top: var(--sp-6);
    align-self: start;
  }

  .page-about .about-split__title {
    font-size: 30px;
  }

  .page-about .about-panel {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: var(--sp-8);
    align-items: start;
  }

  .page-about .about-band--split {
    padding: var(--sp-8) 0;
  }

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

  .page-about .about-figure--scenes {
    margin-top: var(--sp-7);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-scope__row,
  .page-about .about-scene,
  .page-about .about-anchors__link,
  .page-about .about-contact .copy-chip {
    transition: none;
  }

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