.page-about {
  --about-line: 1px solid rgba(201, 162, 39, 0.42);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-about [id] {
  scroll-margin-top: 104px;
}

.page-about .text-link {
  color: var(--lacquer);
  text-decoration: underline;
  text-decoration-color: rgba(201, 162, 39, 0.65);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 160ms var(--ease), text-decoration-color 160ms var(--ease);
}

.page-about .text-link:hover,
.page-about .text-link:focus-visible {
  color: var(--cinnabar);
  text-decoration-color: var(--cinnabar);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: 28px var(--gutter) 44px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 340px;
  pointer-events: none;
  background:
    radial-gradient(120% 100% at 0% 0%, rgba(183, 40, 46, 0.13), transparent 62%),
    linear-gradient(180deg, rgba(232, 206, 134, 0.2), transparent 78%);
}

.page-about .about-hero-inner {
  position: relative;
  max-width: calc(var(--wrap) - 2 * var(--gutter));
  margin: 0 auto;
  display: grid;
  gap: 26px;
}

.page-about .about-hero-inner > .breadcrumb {
  grid-column: 1 / -1;
}

.page-about .about-kicker {
  margin: 0 0 10px;
  color: var(--ochre);
}

.page-about .about-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 7.2vw, 3.35rem);
  line-height: 1.26;
  letter-spacing: 0.05em;
  color: var(--ink);
  margin: 0 0 18px;
}

.page-about .about-title::after {
  content: "";
  display: block;
  width: 64px;
  height: 3px;
  margin-top: 18px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cinnabar), var(--gold));
}

.page-about .about-lede {
  max-width: 34em;
  margin: 0 0 26px;
  font-size: 1rem;
  line-height: 1.95;
  color: rgba(31, 58, 61, 0.86);
}

.page-about .about-facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 0;
  padding: 18px 0 0;
  border-top: var(--about-line);
}

.page-about .about-facts li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-about .about-facts .mono-label {
  color: rgba(169, 100, 46, 0.9);
}

.page-about .about-facts strong {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--lacquer);
}

.page-about .about-hero-figure {
  margin: 0;
  padding: 10px;
  background: var(--paper-2);
  border: 1px solid rgba(201, 162, 39, 0.5);
  border-radius: 8px 8px 40px 8px;
  box-shadow: 0 22px 44px -32px rgba(124, 26, 31, 0.75);
}

.page-about .about-hero-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 4px 4px 32px 4px;
  background: var(--paper-2);
}

/* ---------- 主体与左栏 ---------- */

.page-about .about-body {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 6px var(--gutter) 64px;
  display: grid;
  gap: 8px;
  box-sizing: border-box;
}

.page-about .about-rail {
  padding: 2px 0 6px;
}

.page-about .rail-path {
  display: none;
}

.page-about .jump-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-about .jump-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid rgba(31, 58, 61, 0.18);
  border-radius: 999px;
  color: var(--ink);
  font-size: 0.9rem;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-about .jump-link:hover,
.page-about .jump-link:focus-visible {
  border-color: var(--gold);
  color: var(--lacquer);
  background: rgba(232, 206, 134, 0.22);
}

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

/* ---------- 章节骨架 ---------- */

.page-about .about-section {
  padding-top: 44px;
}

.page-about .section-head {
  margin-bottom: 26px;
}

.page-about .section-head .mono-label {
  color: rgba(169, 100, 46, 0.9);
  margin: 0;
}

.page-about .section-head .h-section {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.6vw, 2.1rem);
  line-height: 1.32;
  letter-spacing: 0.05em;
  color: var(--ink);
  margin: 8px 0 10px;
}

.page-about .section-head .h-sub {
  max-width: 40em;
  margin: 0;
  font-size: 0.96rem;
  color: rgba(31, 58, 61, 0.78);
}

.page-about .chron-body h3,
.page-about .std-step h3,
.page-about .pledge-item h3,
.page-about .about-cta h3 {
  font-family: var(--font-display);
  font-size: 1.14rem;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--lacquer);
  margin: 0 0 8px;
}

/* ---------- 沿革时间带 ---------- */

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

.page-about .chron-item {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 22px 0 22px 30px;
  border-left: 1px solid rgba(201, 162, 39, 0.45);
}

.page-about .chron-item::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 30px;
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  border: 1px solid var(--gold);
  border-radius: 50%;
  background: var(--paper);
  transition: background-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-about .chron-item:hover::before,
.page-about .chron-item:focus-within::before {
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(201, 162, 39, 0.16);
}

.page-about .chron-name {
  justify-self: start;
  align-self: start;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.28em;
  color: var(--cinnabar);
  padding: 2px 10px 2px 0;
  border-bottom: 1px solid rgba(201, 162, 39, 0.4);
}

.page-about .chron-body p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.9;
  color: rgba(31, 58, 61, 0.82);
}

.page-about .chron-badge {
  justify-self: start;
  display: inline-flex;
  flex-direction: column;
  gap: 1px;
  padding: 9px 14px;
  border: 1px solid rgba(201, 162, 39, 0.55);
  border-radius: 10px;
  background: linear-gradient(150deg, rgba(232, 206, 134, 0.34), rgba(201, 162, 39, 0.08));
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: rgba(124, 26, 31, 0.85);
}

.page-about .chron-badge em {
  font-family: var(--font-display);
  font-style: normal;
  font-size: 1.42rem;
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--cinnabar);
}

/* ---------- 选品 ---------- */

.page-about .std-layout {
  display: grid;
  gap: 30px;
}

.page-about .std-lede {
  margin: 0 0 24px;
  padding-left: 16px;
  border-left: 3px solid var(--cinnabar);
  font-family: var(--font-display);
  font-size: 1.1rem;
  line-height: 1.78;
  color: var(--ink);
}

.page-about .std-steps {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
}

.page-about .std-step {
  padding: 20px 0;
  border-top: var(--about-line);
}

.page-about .std-step-num {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(201, 162, 39, 0.16);
  color: var(--ochre);
  transition: background-color 120ms var(--ease), color 120ms var(--ease);
}

.page-about .std-step:hover .std-step-num {
  background: var(--gold-light);
  color: var(--lacquer);
}

.page-about .std-step p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.95;
  color: rgba(31, 58, 61, 0.84);
}

.page-about .std-foot {
  margin: 0;
  padding: 16px 18px;
  border-radius: 10px;
  background: var(--paper-2);
  font-size: 0.94rem;
  line-height: 1.9;
  color: rgba(31, 58, 61, 0.84);
}

.page-about .std-figure {
  margin: 0;
}

.page-about .std-figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid rgba(201, 162, 39, 0.4);
  border-radius: 4px 32px 4px 4px;
}

.page-about .std-figure figcaption {
  margin-top: 10px;
  color: rgba(169, 100, 46, 0.92);
}

/* ---------- 十二分区 ---------- */

.page-about .zone-group {
  margin-bottom: 30px;
}

.page-about .zone-group:last-child {
  margin-bottom: 0;
}

.page-about .zone-group-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: 0.16em;
  color: var(--lacquer);
}

.page-about .zone-group-title .mono-label {
  color: var(--gold);
}

.page-about .zone-group-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(201, 162, 39, 0.55), transparent);
}

.page-about .zone-list {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: rgba(201, 162, 39, 0.3);
  border: 1px solid rgba(201, 162, 39, 0.3);
  border-radius: 12px;
  overflow: hidden;
}

.page-about .zone-item {
  padding: 16px 16px 18px;
  background: var(--paper);
  transition: background-color 160ms var(--ease);
}

.page-about .zone-item:hover {
  background: rgba(232, 206, 134, 0.24);
}

.page-about .zone-num {
  color: var(--ochre);
}

.page-about .zone-item h3 {
  margin: 4px 0 6px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: 0.1em;
  color: var(--ink);
}

.page-about .zone-item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: rgba(31, 58, 61, 0.75);
}

/* ---------- 伙伴 ---------- */

.page-about .partner-block {
  display: grid;
  gap: 30px;
}

.page-about .partner-figure {
  position: relative;
  margin: 0;
  padding: 6px;
}

.page-about .partner-figure::before {
  content: "";
  position: absolute;
  inset: -10px -16px -14px -10px;
  z-index: 0;
  border-radius: 52% 48% 44% 56% / 46% 56% 44% 54%;
  background: linear-gradient(140deg, rgba(183, 40, 46, 0.16), rgba(201, 162, 39, 0.22) 62%, rgba(232, 206, 134, 0.1));
}

.page-about .partner-figure img {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 46% 54% 42% 58% / 54% 42% 58% 46%;
}

.page-about .partner-copy p {
  margin: 0 0 16px;
  font-size: 0.97rem;
  line-height: 1.92;
  color: rgba(31, 58, 61, 0.84);
}

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

/* ---------- 服务准绳 ---------- */

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

.page-about .pledge-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  padding: 24px 0;
  border-top: 1px solid rgba(31, 58, 61, 0.2);
  transition: border-top-color 160ms var(--ease);
}

.page-about .pledge-item:hover {
  border-top-color: rgba(201, 162, 39, 0.8);
}

.page-about .pledge-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  line-height: 1.1;
  color: var(--ochre);
  transition: color 160ms var(--ease);
}

.page-about .pledge-item:hover .pledge-num {
  color: var(--cinnabar);
}

.page-about .pledge-item p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.92;
  color: rgba(31, 58, 61, 0.84);
}

.page-about .pledge-note {
  margin: 22px 0 0;
  padding: 12px 16px;
  border-left: 2px solid var(--gold);
  background: rgba(234, 223, 207, 0.55);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: rgba(31, 58, 61, 0.8);
}

.page-about .pledge-foot {
  margin: 18px 0 0;
  font-size: 0.94rem;
  line-height: 1.9;
  color: rgba(31, 58, 61, 0.82);
}

/* ---------- 数字与收尾 ---------- */

.page-about .numbers-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
}

.page-about .num-card {
  padding: 20px 16px 18px;
  border: 1px solid rgba(201, 162, 39, 0.5);
  border-radius: 12px;
  background: linear-gradient(165deg, rgba(232, 206, 134, 0.26), rgba(247, 241, 230, 0.7));
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-about .num-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}

.page-about .num-value {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1.12;
  letter-spacing: 0.02em;
  color: var(--cinnabar);
}

.page-about .num-unit {
  margin-left: 3px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--lacquer);
}

.page-about .num-label {
  display: block;
  margin-top: 6px;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: rgba(31, 58, 61, 0.72);
}

.page-about .about-cta {
  position: relative;
  overflow: hidden;
  margin-top: 38px;
  padding: 28px 22px 30px;
  border-radius: 18px;
  background: linear-gradient(140deg, rgba(183, 40, 46, 0.97), rgba(124, 26, 31, 0.98) 58%, rgba(169, 100, 46, 0.94));
  color: var(--paper);
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  right: -44px;
  bottom: -64px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(232, 206, 134, 0.45);
  border-radius: 50%;
  pointer-events: none;
}

.page-about .about-cta .mono-label {
  color: rgba(232, 206, 134, 0.88);
  margin: 0;
}

.page-about .about-cta h3 {
  position: relative;
  margin: 8px 0 10px;
  font-size: clamp(1.2rem, 3.6vw, 1.6rem);
  letter-spacing: 0.06em;
  color: var(--gold-light);
}

.page-about .about-cta p {
  position: relative;
  max-width: 40em;
  margin: 0 0 20px;
  font-size: 0.95rem;
  line-height: 1.88;
  color: rgba(247, 241, 230, 0.87);
}

.page-about .about-cta .text-link {
  color: var(--gold-light);
  text-decoration-color: rgba(232, 206, 134, 0.62);
}

.page-about .about-cta .text-link:hover,
.page-about .about-cta .text-link:focus-visible {
  color: #fff;
  text-decoration-color: #fff;
}

.page-about .about-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-cta .btn-primary {
  background: var(--gold-light);
  border-color: var(--gold-light);
  color: var(--lacquer);
}

.page-about .about-cta .btn-primary:hover,
.page-about .about-cta .btn-primary:focus-visible {
  background: #f2e0b0;
  border-color: #f2e0b0;
  color: var(--lacquer);
}

.page-about .about-cta .btn-ghost {
  background: transparent;
  border-color: rgba(232, 206, 134, 0.72);
  color: var(--gold-light);
}

.page-about .about-cta .btn-ghost:hover,
.page-about .about-cta .btn-ghost:focus-visible {
  border-color: var(--gold-light);
  background: rgba(232, 206, 134, 0.16);
  color: var(--gold-light);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-about .zone-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .numbers-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .num-value {
    font-size: 2.3rem;
  }

  .page-about .about-cta {
    padding: 36px 34px 38px;
    border-radius: 22px;
  }
}

@media (min-width: 860px) {
  .page-about .about-hero {
    padding: 40px var(--gutter) 56px;
  }

  .page-about .about-hero-inner {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
    align-items: center;
    gap: 56px;
  }

  .page-about .about-section {
    padding-top: 64px;
  }

  .page-about .chron-item {
    grid-template-columns: 68px minmax(0, 1fr) 118px;
    align-items: start;
    gap: 34px;
    padding: 28px 0 28px 40px;
  }

  .page-about .chron-name {
    writing-mode: vertical-rl;
    text-orientation: upright;
    letter-spacing: 0.26em;
    padding: 0;
    border-bottom: 0;
    margin-top: 2px;
    font-size: 1.06rem;
  }

  .page-about .chron-badge {
    justify-self: end;
  }

  .page-about .pledge-item {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 28px;
    padding: 30px 0;
  }

  .page-about .pledge-num {
    font-size: 2rem;
  }
}

@media (min-width: 900px) {
  .page-about .std-layout {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    align-items: start;
    gap: 52px;
  }

  .page-about .partner-block {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: center;
    gap: 58px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-body {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    gap: 62px;
    padding-bottom: 96px;
  }

  .page-about .about-rail {
    padding-top: 56px;
  }

  .page-about .rail-inner {
    position: sticky;
    top: 96px;
  }

  .page-about .rail-path {
    display: block;
    margin: 0 0 12px;
    color: rgba(169, 100, 46, 0.9);
  }

  .page-about .jump-nav {
    display: grid;
    gap: 0;
    overflow: visible;
    border-left: 1px solid rgba(201, 162, 39, 0.45);
    padding-bottom: 0;
  }

  .page-about .jump-link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    margin-left: -1px;
    padding: 9px 14px;
    font-size: 0.94rem;
  }

  .page-about .jump-link:hover,
  .page-about .jump-link:focus-visible {
    border-left-color: var(--gold);
    background: rgba(232, 206, 134, 0.2);
  }

  .page-about .about-section {
    padding-top: 72px;
  }

  .page-about .about-main > .about-section:first-child {
    padding-top: 52px;
  }
}

@media (min-width: 1100px) {
  .page-about .zone-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .page-about .num-card:hover {
    transform: none;
  }
}