.page-about {
  --about-stack-line: rgba(42, 58, 85, 0.85);
  --about-body-width: 600px;
  background: var(--void);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .about-wrap {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-about .about-crumbs {
  padding-top: 26px;
}

.page-about .about-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(26px, 4vw, 52px) 0 clamp(36px, 6vw, 72px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 60%;
  background:
    radial-gradient(circle at 78% 22%, rgba(47, 224, 208, 0.1), transparent 46%),
    radial-gradient(circle at 18% 8%, rgba(245, 196, 81, 0.09), transparent 52%);
  pointer-events: none;
}

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

.page-about .about-hero-copy h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.6vw, 54px);
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .about-hero-copy .lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(232, 237, 245, 0.86);
}

.page-about .about-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 30px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .about-fact-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.4vw, 36px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-about .about-fact-label {
  display: block;
  margin-top: 7px;
  font-size: 12px;
  line-height: 1.45;
  color: var(--slate);
}

.page-about .about-hero-media {
  position: relative;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--archive), var(--void));
  box-shadow: 12px 12px 0 -1px rgba(42, 58, 85, 0.55), var(--shadow-paper);
}

.page-about .about-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 74% 18%, rgba(245, 196, 81, 0.18), transparent 58%);
  pointer-events: none;
}

.page-about .about-hero-media img,
.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.78) brightness(0.86);
}

.page-about .media-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--slate);
}

.page-about .band-rule {
  height: 1px;
  margin: 0;
  border: 0;
  background: var(--band-soft);
  opacity: 0.7;
}

/* ---------- 章节骨架 ---------- */
.page-about .about-sec {
  padding-top: clamp(46px, 8vw, 92px);
  padding-bottom: clamp(10px, 2vw, 20px);
}

.page-about .about-sec-head {
  position: relative;
  padding-left: 20px;
  margin-bottom: clamp(22px, 3.6vw, 36px);
}

.page-about .about-sec-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 6px;
  border-radius: 1px;
  background: linear-gradient(180deg, var(--gold), var(--cyan));
}

.page-about .about-sec-num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: clamp(34px, 6vw, 56px);
  line-height: 0.9;
  letter-spacing: 0.02em;
  color: transparent;
  -webkit-text-stroke: 1px var(--gold);
  paint-order: stroke;
}

.page-about .about-sec-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.32;
  letter-spacing: 0.015em;
  color: var(--paper);
}

.page-about .about-copy {
  max-width: var(--about-body-width);
  font-size: 15px;
  line-height: 1.85;
  color: rgba(232, 237, 245, 0.86);
}

.page-about .about-copy p {
  margin: 0 0 1.05em;
}

.page-about .about-copy a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 208, 0.4);
}

.page-about .quote-rule {
  margin: 26px 0;
  padding: 4px 0 4px 18px;
  border-left: 3px solid var(--gold);
}

.page-about .quote-rule p {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 2.4vw, 20px);
  line-height: 1.7;
  letter-spacing: 0.01em;
  color: var(--paper);
}

/* ---------- 合集与分区 ---------- */
.page-about .about-sec--archive {
  background:
    linear-gradient(180deg, rgba(11, 20, 38, 0) 0%, rgba(11, 20, 38, 0.75) 18%, rgba(11, 20, 38, 0.75) 82%, rgba(11, 20, 38, 0) 100%);
}

.page-about .about-collection {
  display: grid;
  gap: clamp(20px, 4vw, 40px);
  align-items: center;
}

.page-about .about-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--card), var(--void));
  padding: 8px;
}

.page-about .partition-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(28px, 4vw, 40px);
}

.page-about .partition {
  position: relative;
  padding: 18px 16px 14px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--card), var(--archive));
  box-shadow: var(--shadow-paper);
}

.page-about .partition--b {
  border-top-color: var(--cyan);
}

.page-about .partition--c {
  border-top-color: var(--slate);
}

.page-about .partition-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.page-about .partition-head .mono {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-about .partition-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--paper);
}

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

.page-about .partition-list li {
  display: grid;
  grid-template-columns: 2.4em minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 9px 0;
  border-top: 1px dashed var(--about-stack-line);
  font-size: 13px;
  line-height: 1.6;
  color: rgba(232, 237, 245, 0.82);
}

.page-about .partition-list .mono {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

/* ---------- 档案卡 ---------- */
.page-about .dossier-stack {
  position: relative;
  margin: clamp(26px, 4vw, 38px) 0 0;
}

.page-about .dossier-stack::before,
.page-about .dossier-stack::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: -9px;
  height: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--archive);
  z-index: 0;
}

.page-about .dossier-stack::after {
  left: 20px;
  right: 20px;
  bottom: -17px;
  opacity: 0.45;
}

.page-about .dossier {
  position: relative;
  z-index: 1;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--card), #0d1830);
  overflow: hidden;
}

.page-about .dossier::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--band);
}

.page-about .dossier-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 18px 14px;
}

.page-about .dossier-head .mono {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-about .dossier-grid {
  display: grid;
  grid-template-columns: 1fr;
}

.page-about .dossier-item {
  position: relative;
  padding: 18px 18px 16px;
  border-top: 1px solid var(--line);
  transition: background-color 0.22s ease;
}

.page-about .dossier-item:hover,
.page-about .dossier-item:focus-within {
  background: rgba(47, 224, 208, 0.045);
}

.page-about .dossier-item:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: -3px;
}

.page-about .dossier-idx {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .dossier-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .dossier-item p {
  margin: 0;
  max-width: 40em;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(232, 237, 245, 0.78);
}

.page-about .dossier-more {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: var(--cyan);
  transition: max-height 0.3s ease, opacity 0.24s ease, margin-top 0.24s ease;
}

.page-about .dossier-item:hover .dossier-more,
.page-about .dossier-item:focus-within .dossier-more {
  max-height: 9em;
  opacity: 1;
  margin-top: 10px;
}

/* ---------- 团队 ---------- */
.page-about .about-sec--crew {
  background:
    linear-gradient(180deg, rgba(19, 31, 53, 0) 0%, rgba(19, 31, 53, 0.62) 22%, rgba(19, 31, 53, 0.62) 78%, rgba(19, 31, 53, 0) 100%);
}

.page-about .crew-layout {
  display: grid;
  gap: clamp(22px, 4vw, 38px);
  align-items: start;
}

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

.page-about .crew-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .crew-row:first-child {
  border-top: 1px solid var(--line);
}

.page-about .crew-count {
  display: block;
  min-width: 1.55em;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 28px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-about .crew-body h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .crew-body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(232, 237, 245, 0.78);
}

.page-about .crew-body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 208, 0.4);
}

/* ---------- 时间线 ---------- */
.page-about .timeline {
  position: relative;
  margin: 0;
  padding: 4px 0 0 26px;
  list-style: none;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(245, 196, 81, 0.05));
}

.page-about .timeline-node {
  position: relative;
  padding-bottom: clamp(22px, 3vw, 32px);
}

.page-about .timeline-node:last-child {
  padding-bottom: 4px;
}

.page-about .timeline-node::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 5px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(245, 196, 81, 0.14);
}

.page-about .timeline-year {
  display: inline-block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .timeline-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(16px, 2.4vw, 19px);
  line-height: 1.42;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .timeline-desc {
  margin: 0;
  max-width: 38em;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(232, 237, 245, 0.76);
}

/* ---------- 节奏 ---------- */
.page-about .rhythm-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .rhythm-item {
  padding: 22px 20px;
  background: var(--archive);
}

.page-about .rhythm-tag {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-about .rhythm-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .rhythm-item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(232, 237, 245, 0.76);
}

/* ---------- 收尾 ---------- */
.page-about .about-close {
  padding-top: clamp(48px, 8vw, 92px);
  padding-bottom: clamp(56px, 9vw, 104px);
}

.page-about .about-close-inner {
  position: relative;
  padding: clamp(24px, 4vw, 42px) clamp(20px, 4vw, 44px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 88% 0%, rgba(245, 196, 81, 0.12), transparent 52%),
    linear-gradient(160deg, var(--card), var(--archive));
  box-shadow: var(--shadow-paper);
}

.page-about .about-close-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.34;
  letter-spacing: 0.015em;
  color: var(--paper);
}

.page-about .about-close-inner p:not(.about-kicker) {
  margin: 0 0 22px;
  max-width: 38em;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(232, 237, 245, 0.8);
}

.page-about .about-close-inner a:not(.btn) {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 208, 0.4);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-facts {
    gap: 22px;
  }

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

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

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

  .page-about .dossier-item--wide {
    grid-column: 1 / -1;
  }

  .page-about .dossier-item:nth-child(1),
  .page-about .dossier-item:nth-child(2) {
    border-top: 1px solid var(--line);
  }

  .page-about .dossier-item:nth-child(even) {
    border-left: 1px solid var(--line);
  }

  .page-about .dossier-item--wide {
    border-left: 0;
  }
}

@media (min-width: 860px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: center;
  }

  .page-about .about-collection {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
  }

  .page-about .crew-layout {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  }

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

  .page-about .timeline {
    padding-left: 34px;
  }

  .page-about .timeline::before {
    left: 6px;
  }

  .page-about .timeline-node::before {
    left: -34px;
    top: 6px;
  }

  .page-about .about-copy {
    font-size: 15.5px;
  }
}

@media (min-width: 1120px) {
  .page-about .about-hero-media {
    margin-right: -6px;
  }
}

@media (max-width: 360px) {
  .page-about .about-facts {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .page-about .about-facts li {
    padding-bottom: 10px;
    border-bottom: 1px dashed var(--about-stack-line);
  }

  .page-about .about-facts li:last-child {
    border-bottom: 0;
    padding-bottom: 0;
  }
}

@media (hover: none) {
  .page-about .dossier-more {
    max-height: none;
    opacity: 1;
    margin-top: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .dossier-more,
  .page-about .dossier-item {
    transition: none;
  }
}
<<<END>>>