.page-about {
  --ab-gap: clamp(18px, 3.6vw, 38px);
  --ab-pad: clamp(18px, 3vw, 34px);
  --ab-panel-bg: linear-gradient(158deg, rgba(28, 42, 49, .94), rgba(17, 20, 23, .96));
  position: relative;
  background:
    radial-gradient(980px 460px at 84% -10%, rgba(200, 255, 61, .10), transparent 62%),
    radial-gradient(760px 420px at 4% 26%, rgba(255, 107, 44, .07), transparent 66%),
    var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  padding-top: clamp(92px, 13vw, 146px);
  padding-bottom: clamp(48px, 7vw, 96px);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-about .ab-top {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-about .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--steel);
}

.page-about .breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 10px;
  color: rgba(110, 135, 148, .55);
}

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

.page-about .breadcrumbs a:hover,
.page-about .breadcrumbs a:focus-visible {
  color: var(--lime);
}

.page-about .breadcrumbs [aria-current="page"] {
  color: var(--paper);
}

/* ---------- 首屏拼贴 ---------- */
.page-about .ab-hero {
  display: grid;
  gap: var(--ab-gap);
  align-items: end;
}

.page-about .ab-hero-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(40px, 9vw, 96px);
  font-weight: 700;
  line-height: .94;
  letter-spacing: .015em;
  color: var(--paper);
}

.page-about .ab-hero-lead {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--mist);
}

.page-about .ab-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .ab-hero-side {
  display: flex;
  align-items: stretch;
  gap: 14px;
}

.page-about .ab-hero-side .media-frame {
  flex: 1 1 auto;
  min-width: 0;
}

.page-about .ab-rot {
  margin: 0;
  align-self: flex-end;
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--steel);
  white-space: nowrap;
}

/* ---------- 图片框 ---------- */
.page-about .media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--carbon);
}

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

.page-about .media-frame .media-tag {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 5px 12px;
  border-radius: var(--r-pill);
  background: rgba(11, 31, 26, .66);
  border: 1px solid rgba(200, 255, 61, .38);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  backdrop-filter: blur(6px);
}

.page-about .ab-skew {
  transform: rotate(-1.1deg);
}

.page-about .ab-skew-rev {
  transform: rotate(1.1deg);
}

/* ---------- 首屏数据条 ---------- */
.page-about .ab-hero-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin: clamp(24px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--line);
  overflow: hidden;
}

.page-about .ab-hero-facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--carbon);
}

.page-about .ab-fact-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--lime);
}

.page-about .ab-fact-label {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

/* ---------- 章节通用 ---------- */
.page-about .ab-section {
  margin-top: clamp(46px, 7vw, 92px);
}

.page-about .ab-section-head {
  max-width: 68ch;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-about .ab-h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(28px, 4.6vw, 54px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-about .ab-h3 {
  margin: 0 0 8px;
  font-family: var(--font-body);
  font-size: clamp(16px, 2.1vw, 20px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--paper);
}

.page-about .ab-lead {
  margin: 16px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--mist);
}

.page-about .ab-section p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 发展曲线 ---------- */
.page-about .ab-curve {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 0 clamp(16px, 3vw, 28px);
  opacity: .92;
}

/* ---------- 轨道 + 堆叠面板 ---------- */
.page-about .ab-track {
  display: grid;
  gap: var(--ab-gap);
  align-items: start;
}

.page-about .ab-rail-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-rail-link {
  display: block;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mist);
  text-decoration: none;
  transition: color .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
}

.page-about .ab-rail-link:hover,
.page-about .ab-rail-link:focus-visible {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
  outline: none;
}

.page-about .ab-panels {
  display: grid;
  gap: 14px;
}

.page-about .ab-panel {
  position: relative;
  padding: var(--ab-pad);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: var(--ab-panel-bg);
  box-shadow: var(--shadow);
}

.page-about .ab-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(18px, 3vw, 30px);
  bottom: clamp(18px, 3vw, 30px);
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--lime), rgba(200, 255, 61, .12));
}

.page-about .ab-node-year {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-about .ab-node-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.4vw, 40px);
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--lime);
}

.page-about .ab-node-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--steel);
}

/* ---------- 团队 ---------- */
.page-about .ab-split {
  display: grid;
  gap: var(--ab-gap);
}

.page-about .ab-split-figure {
  margin: 0;
}

.page-about .ab-split-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--steel);
}

.page-about .ab-roles {
  display: grid;
  gap: 12px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-role {
  position: relative;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--slate);
}

.page-about .ab-role-num {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: .04em;
}

.page-about .ab-role p {
  margin: 0;
  font-size: 14px;
}

/* ---------- 分类体系 ---------- */
.page-about .ab-cat-grid {
  display: grid;
  gap: var(--ab-gap);
  align-items: center;
}

.page-about .ab-shelf {
  display: grid;
  gap: 1px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--line);
  overflow: hidden;
}

.page-about .ab-shelf li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 16px;
  background: var(--carbon);
}

.page-about .ab-shelf-num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--lime);
  letter-spacing: .02em;
}

.page-about .ab-shelf-num em {
  font-style: normal;
  font-size: 13px;
  color: var(--steel);
}

.page-about .ab-shelf-label {
  font-size: 13px;
  color: var(--mist);
  text-align: right;
}

.page-about .ab-matrix {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 10px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-cell {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-s);
  background: var(--slate);
  min-height: 86px;
  transition: border-color .18s var(--ease), background .18s var(--ease), transform .18s var(--ease);
}

.page-about .ab-cell:hover,
.page-about .ab-cell:focus-within {
  border-color: rgba(200, 255, 61, .55);
  background: #1F3038;
  transform: translateY(-2px);
}

.page-about .ab-cell--lead {
  background: rgba(200, 255, 61, .11);
  border-color: rgba(200, 255, 61, .44);
}

.page-about .ab-cell-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-about .ab-cell-note {
  display: block;
  margin-top: 7px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--mist);
  opacity: .48;
  transition: opacity .18s var(--ease);
}

.page-about .ab-cell:hover .ab-cell-note,
.page-about .ab-cell:focus-within .ab-cell-note,
.page-about .ab-cell--lead .ab-cell-note {
  opacity: 1;
}

/* ---------- 合作与荣誉标签页 ---------- */
.page-about .ab-tabs {
  margin-top: clamp(18px, 3vw, 28px);
}

.page-about .ab-tablist {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--glass-soft);
}

.page-about .ab-tab {
  padding: 9px 20px;
  border: 0;
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  cursor: pointer;
  transition: color .18s var(--ease), background .18s var(--ease);
}

.page-about .ab-tab:hover {
  color: var(--paper);
}

.page-about .ab-tab.is-active {
  background: var(--lime);
  color: var(--ink);
}

.page-about .ab-tab:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-about .ab-tabpanel {
  margin-top: 18px;
  padding: var(--ab-pad);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: var(--ab-panel-bg);
}

.page-about .ab-eco-list,
.page-about .ab-award-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-eco-list li {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-about .ab-eco-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .ab-eco-list .chip {
  display: inline-block;
  margin-bottom: 8px;
}

.page-about .ab-eco-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .ab-award-list li {
  display: grid;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-about .ab-award-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .ab-award-year {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--lime);
}

.page-about .ab-award-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .ab-tab-cta {
  margin-top: 20px;
}

/* ---------- 收尾 ---------- */
.page-about .ab-close {
  display: grid;
  gap: var(--ab-gap);
  padding: var(--ab-pad);
  border: 1px solid rgba(200, 255, 61, .26);
  border-radius: var(--r-l);
  background:
    radial-gradient(600px 300px at 88% 0%, rgba(255, 107, 44, .14), transparent 66%),
    linear-gradient(158deg, rgba(28, 42, 49, .96), rgba(17, 20, 23, .98));
  box-shadow: var(--shadow);
}

.page-about .ab-close-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

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

.page-about .ab-close-links li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-s);
  background: var(--glass-soft);
}

.page-about .ab-close-links a {
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  text-decoration: none;
}

.page-about .ab-close-links a:hover,
.page-about .ab-close-links a:focus-visible {
  color: var(--lime);
  outline: none;
}

.page-about .ab-close-links span {
  font-size: 12px;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 逐格点亮 ---------- */
.page-about [data-reveal] {
  opacity: 1;
}

.page-about.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}

.page-about.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 窄屏适配 ---------- */
@media (max-width: 899px) {
  .page-about .ab-rot {
    writing-mode: horizontal-tb;
    letter-spacing: .2em;
    align-self: flex-start;
    margin-top: 4px;
  }

  .page-about .ab-hero-side {
    flex-direction: column;
  }

  .page-about .ab-skew,
  .page-about .ab-skew-rev {
    transform: none;
  }

  .page-about .ab-cell-note {
    opacity: 1;
  }
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 900px) {
  .page-about .ab-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-about .ab-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .ab-cat-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }

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

  .page-about .ab-close {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    padding: clamp(28px, 4vw, 52px);
  }

  .page-about .ab-award-list li {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .ab-track {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: clamp(20px, 3vw, 40px);
  }

  .page-about .ab-rail {
    position: sticky;
    top: clamp(88px, 11vw, 118px);
  }

  .page-about .ab-rail-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 8px;
    padding-left: 14px;
    border-left: 1px solid var(--line-strong);
  }

  .page-about .ab-panels {
    gap: 18px;
  }

  .page-about .ab-node:nth-child(even) {
    margin-left: clamp(14px, 2.6vw, 34px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-cell,
  .page-about .ab-rail-link,
  .page-about .ab-tab,
  .page-about.js [data-reveal] {
    transition: none;
  }

  .page-about.js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}
<<<END>>>