.page-about {
  --about-rail: 30px;
  --about-stage-gap: clamp(1.75rem, 4vw, 3rem);
}

/* ---------- 封面层 ---------- */
.page-about .about-cover {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  color: var(--pj-warm);
  background:
    radial-gradient(120% 92% at 84% -14%, rgba(201, 164, 92, .26) 0%, rgba(201, 164, 92, 0) 60%),
    linear-gradient(160deg, var(--pj-wine) 0%, var(--pj-wine-deep) 78%);
  padding-block: calc(var(--pj-header-h) + clamp(3.25rem, 13vw, 7rem)) clamp(2.75rem, 8vw, 5rem);
}

.page-about .about-cover::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--pj-gold) 22%, var(--pj-gold) 78%, transparent);
  opacity: .55;
}

.page-about .about-cover__glow {
  position: absolute;
  z-index: -1;
  right: -14%;
  top: -28%;
  width: min(760px, 92vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(228, 206, 155, .19) 0%, rgba(228, 206, 155, 0) 68%);
  pointer-events: none;
}

.page-about .about-cover__inner {
  position: relative;
}

.page-about .about-cover__eyebrow {
  color: var(--pj-gold-light);
  margin: 0 0 clamp(1rem, 2.5vw, 1.5rem);
}

.page-about .about-cover__title {
  font-family: var(--pj-serif);
  font-size: clamp(2.5rem, 10.5vw, 5.75rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.025em;
  margin: 0;
  color: var(--pj-warm);
  text-wrap: balance;
}

.page-about .about-cover__lead {
  margin: clamp(1.35rem, 3.4vw, 2rem) 0 0;
  max-width: 34em;
  font-size: clamp(1rem, 2.2vw, 1.125rem);
  line-height: 1.85;
  color: var(--pj-on-dark);
}

.page-about .about-cover__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem clamp(1.75rem, 6vw, 4.5rem);
  margin: clamp(2rem, 5vw, 3.25rem) 0 0;
  padding-top: clamp(1.25rem, 3vw, 1.75rem);
  border-top: 1px solid rgba(201, 164, 92, .34);
}

.page-about .about-cover__fact {
  min-width: 7.5rem;
}

.page-about .about-cover__fact dt {
  font-size: .8125rem;
  letter-spacing: .14em;
  color: rgba(228, 206, 155, .82);
  margin: 0 0 .5rem;
}

.page-about .about-cover__fact dd {
  margin: 0;
  font-family: var(--pj-sans);
  font-size: 1rem;
  color: var(--pj-warm);
}

.page-about .about-cover__fact .pj-num {
  font-size: clamp(1.85rem, 5vw, 2.5rem);
  color: var(--pj-gold-light);
  margin-inline-end: .28em;
}

/* ---------- 章节导航条 ---------- */
.page-about .about-toc {
  background: var(--pj-cream);
  border-bottom: 1px solid var(--pj-hairline);
  padding-block: clamp(1rem, 2.6vw, 1.5rem);
}

.page-about .about-toc__list {
  display: flex;
  gap: .35rem clamp(1rem, 3vw, 2.25rem);
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-toc__list li {
  display: flex;
}

.page-about .about-toc .pj-toc__link {
  font-size: .875rem;
  letter-spacing: .02em;
  color: var(--pj-ink-soft);
  text-decoration: none;
  padding-block: .2rem;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--pj-ease), border-color .25s var(--pj-ease);
}

.page-about .about-toc .pj-toc__link:hover,
.page-about .about-toc .pj-toc__link:focus-visible,
.page-about .about-toc .pj-toc__link.is-active {
  color: var(--pj-wine);
  border-bottom-color: var(--pj-gold);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  padding-block: clamp(3.25rem, 8vw, 6rem);
}

.page-about .about-timeline__inner {
  display: grid;
  grid-template-columns: var(--about-rail) minmax(0, 1fr);
  gap: 0 clamp(.75rem, 2vw, 1.5rem);
}

.page-about .about-timeline__rail {
  position: relative;
  display: flex;
  justify-content: center;
  padding-top: .35rem;
}

.page-about .about-timeline__mark {
  color: var(--pj-wine);
  font-weight: 600;
  letter-spacing: .22em;
}

.page-about .about-timeline__head {
  margin-bottom: var(--about-stage-gap);
  max-width: 44em;
}

.page-about .about-timeline__lead {
  margin: 1rem 0 0;
  color: var(--pj-ink-soft);
  line-height: 1.85;
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 clamp(1.25rem, 4vw, 2.5rem);
  position: relative;
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: .55rem;
  bottom: 1.4rem;
  width: 1px;
  background: linear-gradient(180deg, var(--pj-gold) 0%, rgba(201, 164, 92, .28) 72%, rgba(201, 164, 92, 0) 100%);
}

.page-about .about-stage {
  position: relative;
  padding-bottom: var(--about-stage-gap);
}

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

.page-about .about-stage__dot {
  position: absolute;
  left: calc(clamp(1.25rem, 4vw, 2.5rem) * -1 + 1px);
  top: .55rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--pj-cream);
  border: 2px solid var(--pj-gold);
  transition: background-color .3s var(--pj-ease), transform .3s var(--pj-ease);
}

.page-about .about-stage:hover .about-stage__dot {
  background: var(--pj-wine);
  transform: scale(1.18);
}

.page-about .about-stage__kicker {
  margin: 0 0 .6rem;
  font-size: .8125rem;
  letter-spacing: .12em;
  color: var(--pj-ochre);
  font-weight: 600;
}

.page-about .about-stage__title {
  font-family: var(--pj-serif);
  font-size: clamp(1.15rem, 2.6vw, 1.5rem);
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 .7rem;
  color: var(--pj-ink);
}

.page-about .about-stage__text {
  margin: 0;
  color: var(--pj-ink-soft);
  line-height: 1.85;
  max-width: 40em;
}

.page-about .about-stage__figure {
  margin: 1.5rem 0 0;
  max-width: 34rem;
}

.page-about .about-stage__figure .pj-figure__caption {
  margin-top: .65rem;
  font-size: .8125rem;
  color: var(--pj-ink-soft);
}

/* ---------- 手艺 ---------- */
.page-about .about-craft {
  background: var(--pj-warm);
  border-top: 1px solid var(--pj-hairline);
  border-bottom: 1px solid var(--pj-hairline);
  padding-block: clamp(3rem, 7vw, 5rem);
}

.page-about .about-craft__banner {
  margin: 0 0 clamp(2rem, 5vw, 3rem);
}

.page-about .about-craft__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-about .about-craft__mark,
.page-about .about-city__mark,
.page-about .about-paths-sec__mark,
.page-about .about-next__mark {
  color: var(--pj-wine);
  font-weight: 600;
  letter-spacing: .22em;
  margin-bottom: 1rem;
}

.page-about .about-craft__lead {
  margin: 1rem 0 0;
  color: var(--pj-ink-soft);
  line-height: 1.85;
}

.page-about .about-craft__roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(1.25rem, 3vw, 1.75rem);
}

.page-about .about-role {
  background: var(--pj-cream);
  border-top: 3px solid var(--pj-wine);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  box-shadow: 0 1px 0 var(--pj-hairline);
}

.page-about .about-role__title {
  font-family: var(--pj-serif);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.6;
  margin: .75rem 0 .55rem;
  color: var(--pj-ink);
}

.page-about .about-role__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--pj-ink-soft);
}

/* ---------- 水岸 ---------- */
.page-about .about-city {
  padding-block: clamp(3.25rem, 8vw, 6rem);
}

.page-about .about-city__inner {
  display: grid;
  gap: clamp(2rem, 5vw, 3.25rem);
}

.page-about .about-city__copy p {
  margin: 0 0 1.1rem;
  color: var(--pj-ink-soft);
  line-height: 1.85;
  max-width: 38em;
}

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

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

.page-about .about-city__figure .pj-figure__caption {
  margin-top: .65rem;
  font-size: .8125rem;
  color: var(--pj-ink-soft);
}

/* ---------- 栏目路径 ---------- */
.page-about .about-paths-sec {
  padding-block: clamp(3.25rem, 8vw, 6rem);
}

.page-about .about-paths-sec__head {
  max-width: 42em;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.page-about .about-paths-sec__lead {
  margin: 1rem 0 0;
  color: var(--pj-ink-soft);
  line-height: 1.85;
}

.page-about .about-paths {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(1.25rem, 3vw, 1.75rem);
}

.page-about .about-path {
  position: relative;
  padding: clamp(1.25rem, 3vw, 1.75rem) clamp(1.25rem, 3vw, 1.75rem) clamp(1.35rem, 3vw, 1.9rem);
  background: var(--pj-cream);
  border: 1px solid var(--pj-hairline);
  border-left: 3px solid var(--pj-gold);
}

.page-about .about-path__num {
  display: block;
  font-size: 1.5rem;
  color: var(--pj-gold);
  margin-bottom: .55rem;
}

.page-about .about-path__title {
  font-family: var(--pj-serif);
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 .55rem;
  color: var(--pj-ink);
}

.page-about .about-path__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--pj-ink-soft);
}

.page-about .about-paths-sec__foot {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  font-size: .9375rem;
  line-height: 1.9;
  color: var(--pj-ink-soft);
}

.page-about .about-paths-sec__foot a,
.page-about .about-readers__foot a {
  color: var(--pj-wine);
  text-decoration: none;
  border-bottom: 1px solid var(--pj-gold);
  padding-bottom: 1px;
  transition: color .25s var(--pj-ease), border-color .25s var(--pj-ease);
}

.page-about .about-paths-sec__foot a:hover,
.page-about .about-paths-sec__foot a:focus-visible,
.page-about .about-readers__foot a:hover,
.page-about .about-readers__foot a:focus-visible {
  color: var(--pj-ochre);
  border-bottom-color: var(--pj-ochre);
}

/* ---------- 读者数字 ---------- */
.page-about .about-readers {
  position: relative;
  color: var(--pj-warm);
  background:
    radial-gradient(90% 70% at 12% 8%, rgba(201, 164, 92, .16) 0%, rgba(201, 164, 92, 0) 62%),
    linear-gradient(170deg, var(--pj-wine-deep) 0%, var(--pj-wine) 100%);
  padding-block: clamp(3.25rem, 8vw, 5.5rem);
}

.page-about .about-readers__head {
  max-width: 40em;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.page-about .about-readers .pj-section__title {
  color: var(--pj-warm);
}

.page-about .about-readers .pj-section__title::after {
  background: var(--pj-gold);
}

.page-about .about-readers__head p {
  margin: 1rem 0 0;
  color: var(--pj-on-dark);
  line-height: 1.85;
}

.page-about .about-readers__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem) clamp(1.5rem, 4vw, 3rem);
  margin: 0;
}

.page-about .about-reader {
  padding-top: 1rem;
  border-top: 1px solid rgba(201, 164, 92, .38);
}

.page-about .about-reader__label {
  font-size: .8125rem;
  letter-spacing: .14em;
  color: rgba(228, 206, 155, .86);
  margin: 0;
}

.page-about .about-reader__value {
  margin: .6rem 0 .65rem;
  line-height: 1;
}

.page-about .about-reader__value .pj-num {
  font-size: clamp(2.35rem, 7vw, 3.25rem);
  color: var(--pj-gold-light);
  border-bottom: 2px solid var(--pj-gold);
  padding-bottom: .12em;
  display: inline-block;
}

.page-about .about-reader__note {
  margin: 0;
  font-size: .875rem;
  line-height: 1.8;
  color: var(--pj-on-dark);
}

.page-about .about-readers__foot {
  margin: clamp(2rem, 5vw, 3rem) 0 0;
  font-size: .9375rem;
  line-height: 1.9;
  color: var(--pj-on-dark);
}

.page-about .about-readers__foot a {
  color: var(--pj-gold-light);
  text-decoration: none;
  border-bottom: 1px solid var(--pj-gold);
  padding-bottom: 1px;
}

.page-about .about-readers__foot a:hover,
.page-about .about-readers__foot a:focus-visible {
  color: var(--pj-warm);
  border-bottom-color: var(--pj-gold-light);
}

/* ---------- 收束 ---------- */
.page-about .about-next {
  padding-block: clamp(3.25rem, 8vw, 5.5rem);
}

.page-about .about-next__inner {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-about .about-next__copy p {
  margin: 0 0 1.1rem;
  color: var(--pj-ink-soft);
  line-height: 1.85;
  max-width: 36em;
}

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

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  align-items: flex-start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-craft__roles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-paths {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(1.35rem, 3vw, 2rem);
  }

  .page-about .about-path:nth-child(even) {
    margin-top: 1.75rem;
  }

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

  .page-about .about-next__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-about .about-next__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1000px) {
  .page-about .about-timeline__inner {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 0 clamp(1.5rem, 3vw, 3rem);
  }

  .page-about .about-timeline__body {
    margin-inline-start: calc((100% / 12) * 1);
  }

  .page-about .about-timeline__list {
    padding-left: clamp(2rem, 4vw, 3.25rem);
  }

  .page-about .about-stage__figure {
    margin-top: 1.75rem;
  }

  .page-about .about-craft__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
  }

  .page-about .about-craft__head {
    position: sticky;
    top: calc(var(--pj-header-h) + 2rem);
  }

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

  .page-about .about-city__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(2.5rem, 6vw, 4.5rem);
    align-items: center;
  }

  .page-about .about-city__copy {
    order: 1;
  }

  .page-about .about-city__figure {
    order: 2;
    margin-inline-end: calc((100% / 12) * -1);
  }

  .page-about .about-paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(1.5rem, 3vw, 2.25rem) clamp(1.5rem, 3.5vw, 2.75rem);
  }

  .page-about .about-path:nth-child(even) {
    margin-top: 0;
  }

  .page-about .about-path:nth-child(3n + 2) {
    margin-top: 2rem;
  }

  .page-about .about-paths-sec__head {
    margin-inline-start: calc((100% / 12) * 1);
  }

  .page-about .about-readers__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(1.5rem, 3vw, 2.25rem);
  }
}

@media (min-width: 1240px) {
  .page-about .about-timeline__mark,
  .page-about .about-craft__mark,
  .page-about .about-city__mark,
  .page-about .about-paths-sec__mark,
  .page-about .about-next__mark {
    letter-spacing: .28em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-stage__dot,
  .page-about .about-toc .pj-toc__link {
    transition: none;
  }
}