.page-about {
  --about-rule: rgba(201, 162, 39, 0.32);
  --about-rule-soft: rgba(217, 222, 216, 0.14);
  --about-panel: rgba(18, 54, 42, 0.42);
  background-color: var(--ink-green);
  color: var(--paper);
  font-family: var(--font-sans);
}

.page-about .crumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

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

.page-about .crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(174, 184, 176, 0.55);
}

.page-about .crumbs a {
  color: var(--slate);
  text-decoration: none;
}

.page-about .crumbs a:hover,
.page-about .crumbs a:focus-visible {
  color: var(--gold-light);
}

.page-about .crumbs [aria-current="page"] {
  color: var(--gold-light);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-block: clamp(18px, 3vw, 34px) clamp(34px, 6vw, 70px);
  background:
    radial-gradient(120% 86% at 8% 0%, rgba(18, 54, 42, 0.95), transparent 62%),
    radial-gradient(90% 70% at 100% 100%, rgba(201, 162, 39, 0.13), transparent 60%),
    var(--ink-green);
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-hero__frame {
  position: relative;
  margin-top: clamp(14px, 2.2vw, 26px);
  padding: clamp(22px, 3.4vw, 46px) clamp(18px, 3vw, 40px) clamp(22px, 3.4vw, 44px);
  border: 1px solid var(--about-rule);
  background: linear-gradient(155deg, rgba(11, 31, 24, 0.72), rgba(7, 16, 13, 0.44));
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 42px);
}

.page-about .about-hero__frame::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  height: 11px;
  background: repeating-linear-gradient(90deg, var(--about-rule) 0 1px, transparent 1px 24px);
  pointer-events: none;
}

.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold-light);
}

.page-about .about-kicker__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(227, 139, 44, 0.16);
}

.page-about .about-hero h1 {
  margin: 0;
  font-weight: 800;
  font-size: clamp(33px, 6.1vw, 70px);
  line-height: 1.03;
  letter-spacing: -0.04em;
  color: var(--paper);
}

.page-about .about-hero h1 em {
  font-style: normal;
  color: var(--gold);
}

.page-about .about-hero__intro {
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.9;
  color: var(--mist);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.6vw, 30px);
}

.page-about .about-hero__rail {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-rule-soft);
  border: 1px solid var(--about-rule-soft);
}

.page-about .about-hero__rail-item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 12px;
  background: rgba(7, 16, 13, 0.7);
}

.page-about .about-num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.3vw, 27px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-about .about-num-label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------- 索引 + 内容栏 ---------- */
.page-about .about-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  padding-block: clamp(28px, 5vw, 62px) clamp(40px, 7vw, 92px);
}

.page-about .about-index {
  margin-bottom: clamp(20px, 3vw, 28px);
  padding-top: 12px;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-index__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-about .about-index__list {
  display: flex;
  gap: 6px;
  margin: 10px 0 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-index__list li {
  flex: none;
}

.page-about .about-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 8px 10px;
  white-space: nowrap;
  font-size: 13px;
  text-decoration: none;
  color: var(--slate);
  border-left: 2px solid transparent;
  transition: color 0.2s var(--ease-out), border-color 0.2s var(--ease-out), background-color 0.2s var(--ease-out);
}

.page-about .about-index__list a span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-about .about-index__list a:hover,
.page-about .about-index__list a:focus-visible {
  color: var(--paper);
  border-left-color: var(--gold);
  background: rgba(18, 54, 42, 0.62);
}

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

/* ---------- 通用章节 ---------- */
.page-about .about-section {
  padding-block: clamp(28px, 4.6vw, 56px);
  border-top: 1px solid var(--about-rule-soft);
}

.page-about .about-flow > .about-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .about-h2 {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-size: clamp(24px, 3.3vw, 39px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--paper);
}

.page-about .about-h2::before {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  margin-bottom: 16px;
  background: linear-gradient(90deg, var(--gold), rgba(201, 162, 39, 0.08));
}

.page-about .about-h2__tail {
  color: var(--gold);
}

.page-about .about-prose {
  margin: 0 0 1.1em;
  max-width: 38em;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.9;
  color: var(--mist);
}

.page-about .about-section__cta {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
}

/* ---------- 图片 ---------- */
.page-about .about-band {
  position: relative;
  margin: 0 0 clamp(22px, 3vw, 34px);
  border: 1px solid var(--about-rule);
  background: var(--green-layer);
  overflow: hidden;
}

.page-about .about-band img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.04);
}

.page-about .about-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 16, 13, 0.1) 0%, rgba(7, 16, 13, 0.68) 74%, rgba(7, 16, 13, 0.95) 100%);
  pointer-events: none;
}

.page-about .about-band__caption {
  position: absolute;
  left: clamp(13px, 2vw, 22px);
  bottom: clamp(11px, 1.8vw, 18px);
  z-index: 2;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-about .about-figure {
  margin: 0 0 clamp(20px, 3vw, 30px);
  border: 1px solid var(--about-rule);
  background: var(--green-layer);
  overflow: hidden;
}

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

.page-about .about-figure .figure-caption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--slate);
  border-top: 1px solid var(--about-rule-soft);
}

.page-about .about-figure--stacked {
  margin-bottom: 0;
}

/* ---------- 品牌主张要点 ---------- */
.page-about .about-creed__points {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(18px, 2.6vw, 28px);
  background: var(--about-rule-soft);
}

.page-about .about-point {
  padding: clamp(14px, 2vw, 20px);
  background: var(--about-panel);
}

.page-about .about-point__idx {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-light);
}

.page-about .about-point p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--mist);
}

/* ---------- 生产链 ---------- */
.page-about .segmented {
  margin-top: clamp(16px, 2.4vw, 26px);
}

.page-about .segmented-panel .about-prose {
  margin-top: 0;
}

.page-about .about-bullets {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-about .about-bullets li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 2px;
  background: var(--gold);
}

/* ---------- 发展节点 ---------- */
.page-about .about-timeline-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 32px);
  align-items: start;
}

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

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(201, 162, 39, 0.1));
}

.page-about .about-timeline > li {
  position: relative;
  margin-bottom: 10px;
}

.page-about .about-timeline > li:last-child {
  margin-bottom: 0;
}

.page-about .about-timeline > li::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 17px;
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  border: 2px solid var(--gold);
  border-radius: 50%;
  background: var(--ink-green);
}

.page-about .about-node {
  border: 1px solid var(--about-rule-soft);
  background: var(--about-panel);
}

.page-about .about-node summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-node summary:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: -2px;
}

.page-about .about-node__year {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-about .about-node__title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-about .about-node__sign {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 4px;
  border-right: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease-out);
}

.page-about .about-node[open] .about-node__sign {
  transform: rotate(-135deg);
}

.page-about .about-node__body {
  padding: 0 16px 16px;
}

.page-about .about-node__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 历史榜单 ---------- */
.page-about .about-archive__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  background: var(--about-rule-soft);
}

.page-about .about-archive__card {
  padding: clamp(15px, 2.2vw, 22px);
  background: rgba(18, 54, 42, 0.38);
}

.page-about .about-archive__card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--gold-light);
}

.page-about .about-archive__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partner-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 3vw, 42px);
  margin: clamp(16px, 2.4vw, 26px) 0;
  padding: clamp(16px, 2.4vw, 24px) 0;
  list-style: none;
  border-top: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-partner-stats li {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  margin-top: clamp(24px, 4vw, 44px);
  padding: clamp(24px, 3.6vw, 44px);
  background: var(--paper);
  border-top: 3px solid var(--gold);
  border-bottom: 0;
}

.page-about .about-next .about-h2 {
  color: var(--ink-deep);
}

.page-about .about-next .about-prose {
  color: var(--ink-green);
}

.page-about .about-next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: clamp(16px, 2.4vw, 24px) 0 clamp(20px, 3vw, 28px);
  background: rgba(11, 31, 24, 0.14);
}

.page-about .about-next__cell {
  padding: clamp(14px, 2vw, 20px);
  background: var(--paper);
}

.page-about .about-next__cell h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-deep);
}

.page-about .about-next__cell p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--ink-green);
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-next .btn-ghost {
  border-color: rgba(11, 31, 24, 0.42);
  color: var(--ink-deep);
}

.page-about .about-next .btn-ghost:hover,
.page-about .about-next .btn-ghost:focus-visible {
  border-color: var(--ink-deep);
  background: rgba(11, 31, 24, 0.08);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-creed__points {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-about .about-hero__frame {
    grid-template-columns: minmax(0, 1.38fr) minmax(0, 0.62fr);
    align-items: end;
  }

  .page-about .about-timeline-wrap {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (min-width: 980px) {
  .page-about .about-shell {
    grid-template-columns: 200px minmax(0, 1fr);
    column-gap: clamp(32px, 5vw, 70px);
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: 96px;
    margin-bottom: 0;
  }

  .page-about .about-index__list {
    display: grid;
    gap: 2px;
    margin-top: 12px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-about .about-index__list a {
    display: flex;
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>