.page-about {
  --about-hair: rgba(201, 162, 39, 0.38);
  --about-hair-soft: rgba(201, 162, 39, 0.2);
  --about-cream-70: rgba(244, 239, 228, 0.72);
  --about-cream-82: rgba(244, 239, 228, 0.84);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 36px) 0 48px;
  background: var(--ink-deep);
  color: var(--mi-bai);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    112deg,
    rgba(201, 162, 39, 0.055) 0 1px,
    transparent 1px 28px
  );
}

.page-about .about-hero .shell {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .crumbs,
.page-about .about-hero .crumbs a {
  color: var(--about-cream-70);
  text-decoration: none;
}

.page-about .about-hero .crumbs a:hover,
.page-about .about-hero .crumbs a:focus-visible {
  color: var(--sha-jin);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 36px;
  margin-top: 26px;
}

.page-about .about-hero__eyebrow {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--sha-jin);
}

.page-about .about-hero .h-display {
  margin: 0 0 20px;
  font-size: clamp(29px, 5.2vw, 48px);
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--mi-bai);
}

.page-about .about-hero__lead {
  margin: 0 0 28px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--about-cream-82);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.page-about .about-hero .btn--ghost {
  border-color: rgba(244, 239, 228, 0.42);
  color: var(--mi-bai);
}

.page-about .about-hero .btn--ghost:hover,
.page-about .about-hero .btn--ghost:focus-visible {
  border-color: var(--sha-jin);
  color: var(--sha-jin);
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--about-hair-soft);
  font-size: 13px;
  line-height: 1.6;
  color: rgba(244, 239, 228, 0.64);
}

.page-about .about-hero__meta .mono {
  margin-right: 8px;
  color: var(--sha-jin);
}

.page-about .about-hero__visual svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-flow {
  position: relative;
  display: grid;
  gap: 44px;
  padding-top: 52px;
  padding-bottom: 68px;
}

.page-about .about-flow::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    78deg,
    rgba(140, 59, 46, 0.035) 0 2px,
    transparent 2px 32px
  );
}

.page-about .about-flow > * {
  position: relative;
  z-index: 1;
}

.page-about .about-flow__main {
  min-width: 0;
}

.page-about .about-toc {
  display: none;
}

.page-about .about-toc__title {
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--about-hair);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gray-500);
}

.page-about .about-toc__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-about .about-toc__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 8px 0 8px 12px;
  border-left: 2px solid transparent;
  font-size: 14px;
  line-height: 1.55;
  color: var(--yan-hui);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus-visible {
  padding-left: 18px;
  border-left-color: var(--sha-jin);
  color: var(--shi-qing);
}

.page-about .about-toc__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray-500);
}

.page-about .about-chapter {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-about .about-chapter + .about-chapter {
  margin-top: 56px;
}

.page-about .about-chapter__band {
  width: 70%;
  height: 8px;
  margin-bottom: 24px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--shi-qing) 0%, rgba(30, 90, 107, 0.06) 100%);
}

.page-about .about-chapter__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: 26px;
}

.page-about .about-chapter__no {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-top: 4px;
  border-radius: 999px;
  background: var(--ink-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mi-bai);
}

.page-about .about-chapter__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.34;
  letter-spacing: 0.02em;
  color: var(--ink-deep);
}

.page-about .about-chapter__title::after {
  content: "";
  display: block;
  width: 46px;
  height: 3px;
  margin-top: 14px;
  border-radius: 2px;
  background: var(--sha-jin);
}

.page-about .about-prose {
  font-size: 16px;
  line-height: 1.85;
  color: var(--yan-hui);
}

.page-about .about-prose p {
  margin: 0 0 18px;
}

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

.page-about .about-prose a {
  color: var(--shi-qing);
  text-decoration: none;
  border-bottom: 1px solid var(--shi-qing-light);
  padding-bottom: 1px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-prose a:hover,
.page-about .about-prose a:focus-visible {
  color: var(--zhe-shi);
  border-bottom-color: var(--zhe-shi);
}

.page-about .about-figure {
  margin: 0 0 26px;
}

.page-about .about-figure .figure__media {
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--sha-yan);
  aspect-ratio: 5 / 2;
}

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

.page-about .about-figure .figure__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--gray-500);
}

.page-about .about-timeline {
  position: relative;
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--about-hair) 0%, rgba(201, 162, 39, 0.08) 100%);
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 30px 52px;
}

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

.page-about .about-timeline__dot {
  position: absolute;
  left: 0;
  top: 2px;
  display: grid;
  place-items: center;
  width: 33px;
  height: 33px;
  border-radius: 999px;
  border: 1px solid var(--sha-jin);
  background: var(--mi-bai);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--zhe-shi);
  transition: background 0.24s var(--ease), color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-about .about-timeline__item:hover .about-timeline__dot,
.page-about .about-timeline__item:focus-within .about-timeline__dot {
  background: var(--zhe-shi);
  border-color: var(--zhe-shi);
  color: var(--mi-bai);
}

.page-about .about-timeline__range {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--zhe-shi);
}

.page-about .about-timeline__stage {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.42;
  color: var(--ink-deep);
}

.page-about .about-timeline__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yan-hui);
}

.page-about .about-timeline__more {
  display: grid;
  grid-template-rows: 0fr;
  margin: 0;
  opacity: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--shi-qing);
  transition: grid-template-rows 0.32s var(--ease), opacity 0.32s var(--ease), margin-top 0.32s var(--ease);
}

.page-about .about-timeline__more > span {
  display: block;
  overflow: hidden;
}

.page-about .about-timeline__item:hover .about-timeline__more,
.page-about .about-timeline__item:focus-within .about-timeline__more {
  grid-template-rows: 1fr;
  margin-top: 10px;
  opacity: 1;
}

.page-about .about-roles {
  display: grid;
  gap: 14px;
  margin: 24px 0 26px;
  padding: 0;
  list-style: none;
}

.page-about .about-role {
  padding: 22px 22px 24px;
  border-radius: var(--radius-card);
  background: var(--sha-yan);
  border-top: 3px solid var(--sha-jin);
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-about .about-role:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 26px rgba(19, 59, 71, 0.09);
}

.page-about .about-role__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.2;
  color: var(--zhe-shi);
  margin-bottom: 4px;
}

.page-about .about-role__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--ink-deep);
}

.page-about .about-role__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--yan-hui);
}

.page-about .about-review {
  margin: 18px 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-left: 2px solid var(--about-hair);
}

.page-about .about-review__step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 0 14px 18px;
  border-bottom: 1px solid rgba(19, 59, 71, 0.08);
}

.page-about .about-review__step:last-child {
  border-bottom: 0;
}

.page-about .about-review__label {
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--mi-bai);
  border: 1px solid var(--about-hair);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--zhe-shi);
  white-space: nowrap;
}

.page-about .about-review__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yan-hui);
}

.page-about .about-scenes {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-about .about-scene {
  padding: 20px 0 20px 18px;
  border-top: 1px solid rgba(19, 59, 71, 0.1);
  border-left: 3px solid transparent;
  transition: border-left-color 0.24s var(--ease), padding-left 0.24s var(--ease);
}

.page-about .about-scene:hover {
  padding-left: 24px;
  border-left-color: var(--shi-qing-light);
}

.page-about .about-scene__q {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-deep);
}

.page-about .about-scene__a {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yan-hui);
}

.page-about .about-scene__a a {
  color: var(--shi-qing);
  text-decoration: none;
  border-bottom: 1px solid var(--shi-qing-light);
}

.page-about .about-scene__a a:hover,
.page-about .about-scene__a a:focus-visible {
  color: var(--zhe-shi);
  border-bottom-color: var(--zhe-shi);
}

.page-about .about-dark {
  position: relative;
  overflow: hidden;
  padding: 34px 24px 30px;
  border-radius: var(--radius-card);
  background: var(--ink-deep);
  color: var(--mi-bai);
}

.page-about .about-dark::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sha-jin) 0%, rgba(201, 162, 39, 0) 78%);
}

.page-about .about-dark__eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--sha-jin);
}

.page-about .promise-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .promise {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 22px 0;
  border-top: 1px solid rgba(201, 162, 39, 0.22);
}

.page-about .promise:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-about .promise__rule {
  display: block;
  width: 40px;
  height: 3px;
  margin-top: 12px;
  border-radius: 2px;
  background: var(--shi-qing-light);
  transition: width 0.3s var(--ease), background 0.3s var(--ease);
}

.page-about .promise:hover .promise__rule,
.page-about .promise:focus-within .promise__rule {
  width: 76px;
  background: var(--sha-jin);
}

.page-about .promise__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.2vw, 32px);
  line-height: 1.3;
  letter-spacing: 0.06em;
  color: var(--mi-bai);
}

.page-about .promise__text {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(244, 239, 228, 0.78);
}

.page-about .about-imprint {
  padding: 26px 22px 24px;
  border-radius: var(--radius-card);
  background: var(--sha-yan);
  border-left: 4px solid var(--sha-jin);
}

.page-about .about-imprint__list {
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .about-imprint__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid rgba(19, 59, 71, 0.12);
}

.page-about .about-imprint__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gray-500);
}

.page-about .about-imprint__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-deep);
}

.page-about .about-imprint__row dd.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

@media (hover: none) {
  .page-about .about-timeline__more {
    grid-template-rows: 1fr;
    margin-top: 10px;
    opacity: 1;
  }
}

@media (min-width: 720px) {
  .page-about .about-hero {
    padding: calc(var(--header-h) + 56px) 0 68px;
  }

  .page-about .about-hero__grid {
    margin-top: 34px;
    gap: 48px;
  }

  .page-about .about-flow {
    padding-top: 68px;
    padding-bottom: 88px;
  }

  .page-about .about-roles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-dark {
    padding: 44px 40px 36px;
  }

  .page-about .about-imprint {
    padding: 30px 30px 28px;
  }

  .page-about .about-imprint__row {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
    gap: 56px;
  }

  .page-about .about-hero__actions {
    margin-left: 40px;
  }

  .page-about .about-chapter + .about-chapter {
    margin-top: 78px;
  }

  .page-about .about-chapter__band {
    width: 72%;
  }
}

@media (min-width: 1000px) {
  .page-about .about-flow {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    gap: 64px;
    align-items: start;
    padding-top: 82px;
    padding-bottom: 104px;
  }

  .page-about .about-toc {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 32px);
  }
}

@media (min-width: 1200px) {
  .page-about .about-figure .figure__media {
    aspect-ratio: 21 / 9;
  }
}
<<<END>>>