.page-about {
  --about-gap: clamp(28px, 5vw, 60px);
  --about-soft: rgba(233, 240, 236, 0.06);
  color: var(--home-white);
  padding-bottom: clamp(52px, 8vw, 104px);
}

.page-about .wrap {
  padding-top: 0;
}

/* 面包屑与封面 */
.page-about .breadcrumb {
  padding-top: clamp(16px, 3vw, 26px);
}

.page-about .about-hero {
  padding: clamp(18px, 4vw, 42px) 0 clamp(28px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero .page-head__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  max-width: 18ch;
}

.page-about .about-hero .page-head__lede {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 64ch;
  font-size: 17px;
  line-height: 1.8;
  color: rgba(233, 240, 236, 0.84);
}

.page-about .about-figures {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 1px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-figures > li {
  background: var(--slab);
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-figures__n {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1;
  color: var(--cyan);
}

.page-about .about-figures__l {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mute);
}

/* 年鉴骨架 */
.page-about .yearbook {
  padding-top: clamp(26px, 4.5vw, 52px);
}

.page-about .yearbook__cap {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mute);
  margin: 0 0 10px;
}

.page-about .yearbook__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .yearbook__list > li {
  flex: 0 0 auto;
}

.page-about .yearbook__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  color: var(--mute);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .yearbook__list a .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-about .yearbook__list a:hover,
.page-about .yearbook__list a:focus-visible {
  color: var(--home-white);
  border-color: var(--cyan);
}

/* 章节 */
.page-about .chapter {
  padding: clamp(34px, 6vw, 68px) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--bar) + 28px);
}

.page-about .chapter:first-child {
  border-top: 0;
  padding-top: 8px;
}

.page-about .chapter__head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 22px);
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-about .chapter__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(40px, 6.2vw, 72px);
  line-height: 0.86;
  color: var(--cyan);
  letter-spacing: -0.04em;
}

.page-about .chapter__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-about .chapter__lede {
  margin: 0 0 clamp(18px, 3vw, 28px);
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(233, 240, 236, 0.8);
}

/* 01 */
.page-about .mission {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-about .mission__text p {
  margin: 0 0 16px;
  font-size: 17px;
  line-height: 1.8;
  color: rgba(233, 240, 236, 0.84);
}

.page-about .mission__text p:last-child {
  margin-bottom: 0;
}

.page-about .mission__text strong {
  color: var(--cyan);
  font-weight: 700;
}

.page-about .mission__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--slab);
}

.page-about .mission__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.page-about .mission__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 22px 14px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--home-white);
  background: linear-gradient(to top, rgba(12, 22, 19, 0.92), transparent);
}

.page-about .about-quote {
  margin: clamp(24px, 4vw, 44px) 0 0;
  padding: 4px 0 4px 20px;
  border-left: 3px solid var(--gold);
}

.page-about .about-quote blockquote {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.3vw, 24px);
  line-height: 1.75;
  color: var(--home-white);
}

.page-about .about-quote__tag {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

/* 02 节点 */
.page-about .road {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--slab);
}

.page-about .road__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  pointer-events: none;
}

.page-about .road__line {
  position: relative;
  display: block;
  width: 100%;
  height: 46px;
}

.page-about .road__list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .node {
  position: relative;
  padding: 16px 16px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-about .node::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 16px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(232, 193, 112, 0.18);
}

.page-about .node:hover,
.page-about .node:focus-visible {
  border-color: var(--cyan);
  transform: translateY(-2px);
  outline: none;
}

.page-about .node__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-about .node__title {
  margin: 8px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .node__desc {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mute);
}

.page-about .node__more {
  margin: 10px 0 0;
  padding-top: 9px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.65;
  color: var(--cyan);
}

/* 03 流程 */
.page-about .process__media {
  position: relative;
  margin: 0 0 clamp(18px, 3vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--slab);
}

.page-about .process__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .process__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 24px 16px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--home-white);
  background: linear-gradient(to top, rgba(12, 22, 19, 0.92), transparent);
}

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

.page-about .step {
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: linear-gradient(160deg, rgba(43, 232, 208, 0.07), transparent 62%);
}

.page-about .step__n {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--signal);
}

.page-about .step__t {
  margin: 9px 0 6px;
  font-size: 16px;
  font-weight: 700;
}

.page-about .step__d {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}

.page-about .process__note {
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--line);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(233, 240, 236, 0.76);
}

/* 04 团队 */
.page-about .team {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

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

.page-about .team-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 4px 12px;
}

.page-about .team-row__name {
  font-size: 15px;
  color: rgba(233, 240, 236, 0.9);
}

.page-about .team-row__num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--home-white);
}

.page-about .team-row__bar {
  grid-column: 1 / -1;
  display: block;
  height: 8px;
  border-radius: 999px;
  background: rgba(233, 240, 236, 0.1);
  overflow: hidden;
}

.page-about .team-row__fill {
  display: block;
  height: 100%;
  width: var(--pct, 0%);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), var(--signal));
}

.page-about .team__notes p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(233, 240, 236, 0.82);
}

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

.page-about .crew-list > li {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--about-soft);
  font-size: 14px;
  line-height: 1.65;
  color: rgba(233, 240, 236, 0.82);
}

.page-about .crew-list .mono {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* 05 合作 */
.page-about .trust {
  display: grid;
  gap: 12px;
}

.page-about .trust__item {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--slab);
}

.page-about .trust__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-about .trust__t {
  margin: 10px 0 6px;
  font-size: 16px;
  font-weight: 700;
}

.page-about .trust__d {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}

.page-about .trust__note {
  margin: clamp(18px, 3vw, 26px) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(233, 240, 236, 0.8);
}

.page-about .trust__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 232, 208, 0.4);
}

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

/* 06 规模 */
.page-about .scale-grid {
  margin: 0;
  padding: 1px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .scale-card {
  background: var(--panel);
  padding: 18px 18px 20px;
}

.page-about .scale-card dt {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mute);
}

.page-about .scale-card dd {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.3;
  color: var(--home-white);
}

.page-about .scale-card__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mute);
}

/* 收尾 */
.page-about .about-cta {
  margin-top: clamp(32px, 6vw, 72px);
  padding: clamp(22px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(43, 232, 208, 0.09), transparent 55%),
    linear-gradient(320deg, rgba(255, 106, 26, 0.14), transparent 50%),
    var(--slab);
}

.page-about .about-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3vw, 32px);
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.page-about .about-cta__lede {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(233, 240, 236, 0.82);
}

.page-about .about-cta__actions {
  margin-top: clamp(18px, 3vw, 26px);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 断点 */
@media (min-width: 640px) {
  .page-about .about-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 860px) {
  .page-about .mission {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .team {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }

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

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

@media (min-width: 1000px) {
  .page-about .yearbook {
    display: grid;
    grid-template-columns: 176px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-about .yearbook__side {
    position: sticky;
    top: calc(var(--bar) + 28px);
  }

  .page-about .yearbook__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .yearbook__list a {
    width: 100%;
    padding: 9px 12px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    font-size: 14px;
  }

  .page-about .yearbook__list a:hover,
  .page-about .yearbook__list a:focus-visible {
    border-left-color: var(--signal);
    color: var(--home-white);
  }
}

@media (min-width: 1080px) {
  .page-about .road__list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

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

@media (hover: hover) and (min-width: 860px) {
  .page-about .node__more {
    max-height: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.3s var(--ease), opacity 0.25s var(--ease),
      margin-top 0.3s var(--ease), padding-top 0.3s var(--ease);
  }

  .page-about .node:hover .node__more,
  .page-about .node:focus-within .node__more,
  .page-about .node:focus-visible .node__more {
    max-height: 8em;
    margin-top: 10px;
    padding-top: 9px;
    border-top-color: var(--line);
    opacity: 1;
  }
}

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

  .page-about .node:hover,
  .page-about .node:focus-visible {
    transform: none;
  }
}
<<<END>>>

.page-about {
  --pct: 1rem;
}