.page-about {
  --about-dim: rgba(241, 235, 221, 0.68);
  --about-faint: rgba(241, 235, 221, 0.45);
  --about-line: rgba(241, 235, 221, 0.16);
  background: var(--ink);
  color: var(--bone);
}

.page-about h1,
.page-about h2,
.page-about h3 {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-about .about-hero {
  padding: clamp(20px, 4vw, 40px) 0 clamp(32px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(18px, 3vw, 28px);
}

.page-about .about-hero h1 {
  font-size: clamp(36px, 8vw, 76px);
  letter-spacing: -0.035em;
  margin: 10px 0 0;
}

.page-about .about-hero .lead {
  max-width: 40ch;
  margin: clamp(14px, 2vw, 20px) 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--about-dim);
}

.page-about .about-hero__figure {
  margin: 0;
  align-self: stretch;
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .role-list {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .role-list__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 14px;
  padding: 14px 2px;
  border-bottom: 1px solid var(--line);
  transition: background-color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-about .role-list__item:hover {
  background: var(--ink-2);
  padding-left: 10px;
}

.page-about .role-list__num {
  grid-row: span 2;
  align-self: start;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-about .role-list__name {
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.01em;
}

.page-about .role-list__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--about-dim);
}

.page-about .about-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-figures__item {
  background: var(--ink-2);
  padding: clamp(14px, 2vw, 22px);
}

.page-about .about-figures dt {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--about-faint);
}

.page-about .about-figures dd {
  margin: 8px 0 0;
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 800;
  color: var(--bone);
}

.page-about .about-figures dd .num {
  color: var(--amber);
  font-size: 1.15em;
}

.page-about .about-index {
  border-bottom: 1px solid var(--line);
  background: var(--ink-3);
}

.page-about .about-index__inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-top: 12px;
  padding-bottom: 12px;
  scrollbar-width: thin;
}

.page-about .about-index__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  color: var(--bone);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 180ms var(--ease), color 180ms var(--ease), transform 180ms var(--ease);
}

.page-about .about-index__link .mono {
  color: var(--about-faint);
  font-size: 11px;
}

.page-about .about-index__link:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-1px);
}

.page-about .about-index__link:hover .mono {
  color: var(--cyan);
}

.page-about .about-index__link[data-current] {
  border-color: var(--amber);
  color: var(--amber);
}

.page-about .about-index__link[data-current] .mono {
  color: var(--amber);
}

.page-about .about-section__lead {
  max-width: 62ch;
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-dim);
}

.page-about .process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 20px);
}

.page-about .process-step {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px) clamp(16px, 2.2vw, 24px);
  background: var(--ink-2);
  border: 2px solid var(--about-line);
  box-shadow: var(--shadow-hard);
  transition: border-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-about .process-step:hover {
  border-color: var(--amber);
  transform: translateY(-2px);
}

.page-about .process-step__num {
  display: block;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-about .process-step__title {
  margin: 10px 0 0;
  font-size: clamp(20px, 2.2vw, 24px);
}

.page-about .process-step__desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--about-dim);
}

.page-about .process-step__more {
  margin-top: 14px;
  border-top: 1px dashed var(--about-line);
  padding-top: 12px;
}

.page-about .process-step__more summary {
  cursor: pointer;
  font-size: 13px;
  color: var(--cyan);
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-about .process-step__more summary::-webkit-details-marker {
  display: none;
}

.page-about .process-step__more summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
}

.page-about .process-step__more[open] summary::before {
  content: "−";
}

.page-about .process-step__more p {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--about-dim);
}

.page-about .process-figure {
  margin: clamp(24px, 4vw, 40px) 0 0;
}

.page-about .process-figure img,
.page-about .hubei-band img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 20px;
  border-left: 1px solid var(--about-line);
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 clamp(22px, 3vw, 30px);
}

.page-about .timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  top: 8px;
  left: -25px;
  width: 9px;
  height: 9px;
  background: var(--amber);
}

.page-about .timeline__stamp {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-about .timeline__title {
  margin: 6px 0 0;
  font-size: clamp(18px, 2vw, 21px);
}

.page-about .timeline__desc {
  margin: 8px 0 0;
  max-width: 42ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--about-dim);
}

.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

.page-about .team-grid .prose {
  max-width: 58ch;
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-dim);
}

.page-about .team-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
}

.page-about .scale-panel {
  padding: clamp(20px, 2.6vw, 28px);
  border: 2px solid var(--amber);
  box-shadow: var(--shadow-hard);
  background: linear-gradient(160deg, var(--ink-2) 0%, var(--ink-3) 100%);
}

.page-about .scale-panel__title {
  font-size: 18px;
  letter-spacing: 0.02em;
}

.page-about .scale-panel__list {
  margin: 16px 0 0;
  padding: 0;
}

.page-about .scale-panel__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--about-line);
}

.page-about .scale-panel__row dt {
  font-size: 13px;
  color: var(--about-dim);
}

.page-about .scale-panel__row dd {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--bone);
  white-space: nowrap;
}

.page-about .scale-panel__row dd .num {
  color: var(--amber);
  font-size: 1.1em;
}

.page-about .scale-panel__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--about-faint);
}

.page-about .hubei-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
}

.page-about .hubei-grid .prose {
  max-width: 56ch;
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-dim);
}

.page-about .hubei-grid__side {
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--clay);
  background: var(--ink-2);
}

.page-about .hubei-grid__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--clay);
}

.page-about .hubei-grid__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--bone);
}

.page-about .hubei-grid__text--dim {
  color: var(--about-dim);
  font-size: 13px;
}

.page-about .hubei-grid__side .btn {
  margin-top: 16px;
}

.page-about .hubei-band {
  margin: clamp(24px, 4vw, 40px) 0 0;
}

.page-about .about-next__box {
  padding: clamp(24px, 4vw, 44px) clamp(20px, 3vw, 40px);
  border: 2px solid var(--line-strong);
  background: var(--ink-2);
  box-shadow: var(--shadow-hard);
}

.page-about .about-next__title {
  font-size: clamp(24px, 3.4vw, 36px);
}

.page-about .about-next__lead {
  max-width: 60ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-dim);
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 28px);
}

@media (min-width: 760px) {
  .page-about .about-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-about .process-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .process-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: calc(-1 * clamp(14px, 2vw, 20px));
    width: clamp(14px, 2vw, 20px);
    height: 1px;
    background: var(--amber);
  }
}

@media (min-width: 860px) {
  .page-about .timeline {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 18px;
    padding-left: 0;
    border-left: 0;
    border-top: 2px solid var(--about-line);
    padding-top: 26px;
  }

  .page-about .timeline__item {
    padding: 0;
  }

  .page-about .timeline__item::before {
    top: -34px;
    left: 0;
    width: 2px;
    height: 13px;
  }

  .page-about .timeline__desc {
    max-width: none;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(24px, 3vw, 40px);
    align-items: start;
  }

  .page-about .team-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .hubei-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .scale-panel {
    position: sticky;
    top: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .role-list__item,
  .page-about .about-index__link,
  .page-about .process-step {
    transition: none;
  }

  .page-about .process-step:hover,
  .page-about .about-index__link:hover {
    transform: none;
  }
}
<<<END>>>