.page-about {
  background: var(--paper);
}

/* ---------- 通用 figure 说明 ---------- */
.page-about figure {
  margin: 0;
}

.page-about .about-fig-cap {
  display: flex;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 01 / 杂志对页开篇 ---------- */
.page-about .about-spread {
  position: relative;
  padding: var(--space-7) 0 0;
  border-bottom: 1px solid var(--graphite);
}

.page-about .about-spread::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--ghost) 1px, transparent 1px),
    linear-gradient(to bottom, var(--ghost) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: 0.6;
  pointer-events: none;
}

.page-about .about-spread-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-about .about-lead {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-top: var(--space-2);
}

.page-about .about-lead .breadcrumb {
  margin-bottom: var(--space-4);
}

.page-about .about-lead .section-index {
  margin-bottom: var(--space-3);
}

.page-about .about-title {
  max-width: 6em;
  margin-bottom: var(--space-5);
}

.page-about .about-lead-text {
  max-width: 36em;
  margin: 0;
  padding-left: var(--space-4);
  border-left: 2px solid var(--peach);
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--graphite);
}

.page-about .about-lead-text strong {
  color: var(--ink);
  font-weight: 600;
}

.page-about .about-lead-figure {
  width: 100%;
  margin-top: var(--space-5);
}

.page-about .about-lead-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border: 1px solid var(--graphite);
  background: var(--ghost);
}

/* ---------- 02 / 发展时间线 ---------- */
.page-about .about-timeline-col {
  padding-top: var(--space-2);
}

.page-about .about-timeline-col .section-head {
  margin-bottom: var(--space-5);
}

.page-about .about-timeline-col .section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.page-about .about-timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--space-5);
  border-left: 1px solid var(--graphite);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.page-about .about-timeline-item {
  position: relative;
  padding-bottom: var(--space-4);
}

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

.page-about .about-timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-5) - 9px);
  top: 0;
  width: 17px;
  height: 17px;
  box-shadow: 0 0 0 4px var(--paper);
}

.page-about .about-dot-peach {
  background: var(--peach);
}

.page-about .about-dot-yellow {
  background: var(--yellow);
}

.page-about .about-dot-strawberry {
  background: var(--strawberry);
}

.page-about .about-timeline-year {
  display: inline-block;
  margin-bottom: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-about .about-timeline-title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.125rem;
}

.page-about .about-timeline-desc {
  max-width: 28em;
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--graphite);
}

/* ---------- 03 / 缘起 ---------- */
.page-about .about-origin {
  padding: var(--space-7) 0;
}

.page-about .about-origin-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
  border-bottom: 1px solid var(--graphite);
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-6);
}

.page-about .about-origin-head .section-index,
.page-about .about-values-head .section-index {
  margin: 0;
}

.page-about .about-origin-head .section-title,
.page-about .about-values-head .section-title {
  margin: 0;
}

.page-about .about-origin-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-about .about-origin-copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 42em;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--graphite);
}

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

.page-about .about-origin-copy strong {
  color: var(--ink);
  font-weight: 600;
}

.page-about .about-origin-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--graphite);
  background: var(--ghost);
}

/* ---------- 04 / 规模数字 ---------- */
.page-about .about-stats {
  background: var(--ink);
  color: var(--paper);
  padding: var(--space-7) 0;
}

.page-about .about-stats .section-head {
  border-bottom: 1px solid rgba(245, 245, 240, 0.28);
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-6);
}

.page-about .about-stats .section-index {
  color: var(--peach);
}

.page-about .about-stats .section-title {
  color: var(--paper);
}

.page-about .about-stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.page-about .about-stat-block {
  border-top: 4px solid var(--peach);
  background: rgba(255, 255, 255, 0.04);
  padding: var(--space-5) var(--space-3) var(--space-4);
}

.page-about .about-stat-block-yellow {
  border-top-color: var(--yellow);
}

.page-about .about-stat-block-strawberry {
  border-top-color: var(--strawberry);
}

.page-about .about-stat-label {
  display: block;
  margin-bottom: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(245, 245, 240, 0.62);
}

.page-about .about-stat-num {
  display: block;
  margin-bottom: var(--space-3);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3rem, 5vw, 4.75rem);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-stat-caption {
  display: block;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: rgba(245, 245, 240, 0.72);
}

/* ---------- 05 / 品牌理念 ---------- */
.page-about .about-values {
  padding: var(--space-7) 0;
}

.page-about .about-values-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
  border-bottom: 1px solid var(--graphite);
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-6);
}

.page-about .about-values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

.page-about .about-principle {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: var(--space-4);
  border-bottom: 1px solid var(--ghost);
  padding: var(--space-4) 0;
}

.page-about .about-principle-num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--peach);
  padding-top: 4px;
}

.page-about .about-principle-copy h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.375rem;
}

.page-about .about-principle-copy p {
  margin: 0 0 var(--space-2);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--graphite);
}

.page-about .about-principle-detail {
  color: var(--muted);
}

.page-about .about-values-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--graphite);
  background: var(--ghost);
}

/* ---------- 06 / 继续浏览 ---------- */
.page-about .about-more {
  border-top: 1px solid var(--graphite);
  background: var(--ghost);
  padding: var(--space-6) 0 var(--space-7);
}

.page-about .about-more .section-index {
  margin-bottom: var(--space-3);
}

.page-about .about-more .section-title {
  margin-bottom: var(--space-5);
}

.page-about .about-more-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.page-about .about-more-list a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--graphite);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  transition:
    background-color 0.25s ease,
    color 0.25s ease,
    transform 0.25s ease;
}

.page-about .about-more-name {
  font-weight: 500;
}

.page-about .about-more-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-about .about-more-list a:hover,
.page-about .about-more-list a:focus-visible {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-2px);
}

.page-about .about-more-list a:hover .about-more-code,
.page-about .about-more-list a:focus-visible .about-more-code {
  color: var(--peach);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5) var(--space-6);
  }

  .page-about .about-more-list {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }
}

@media (min-width: 860px) {
  .page-about .about-origin-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-7);
    align-items: start;
  }

  .page-about .about-values-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-7);
    align-items: start;
  }

  .page-about .about-values-figure {
    position: sticky;
    top: calc(var(--header-h) + var(--space-5));
  }
}

@media (min-width: 960px) {
  .page-about .about-spread-inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-7);
  }

  .page-about .about-spread::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--ghost);
    pointer-events: none;
  }

  .page-about .about-stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-about .about-timeline-item {
    animation: about-rise-in 0.36s ease both;
  }

  .page-about .about-timeline-item:nth-child(2) {
    animation-delay: 0.06s;
  }

  .page-about .about-timeline-item:nth-child(3) {
    animation-delay: 0.12s;
  }

  .page-about .about-timeline-item:nth-child(4) {
    animation-delay: 0.18s;
  }

  .page-about .about-timeline-item:nth-child(5) {
    animation-delay: 0.24s;
  }
}

@keyframes about-rise-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}