.page-about {
  display: block;
  background: var(--kx-void);
  color: var(--kx-ink);
}

.page-about :where(h1, h2, h3, p, ul, ol, figure) {
  margin: 0;
}

.page-about a {
  color: var(--kx-cyan);
}

/* ---------- 面包屑 ---------- */
.page-about .ab-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--kx-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--kx-mist);
  padding-top: clamp(18px, 3vw, 28px);
}

.page-about .ab-crumbs a {
  color: var(--kx-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--kx-ease), border-color .2s var(--kx-ease);
}

.page-about .ab-crumbs a:hover {
  color: var(--kx-cyan);
  border-bottom-color: var(--kx-cyan);
}

.page-about .ab-crumbs__sep {
  color: var(--kx-dim);
}

.page-about .ab-crumbs [aria-current="page"] {
  color: var(--kx-ink);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  padding-bottom: clamp(28px, 5vw, 60px);
  background:
    radial-gradient(110% 85% at 88% 0%, rgba(55, 214, 230, .14), transparent 58%),
    radial-gradient(90% 80% at 0% 100%, rgba(243, 182, 75, .08), transparent 60%),
    linear-gradient(180deg, var(--kx-hull) 0%, var(--kx-void) 100%);
  border-bottom: 1px solid var(--kx-line);
  overflow: hidden;
}

.page-about .ab-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(20px, 3.5vw, 34px);
}

.page-about .ab-eyebrow {
  font-family: var(--kx-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--kx-cyan);
}

.page-about .ab-hero__text h1 {
  margin-top: 14px;
  font-family: var(--kx-font-display);
  font-weight: 800;
  font-size: clamp(28px, 5.4vw, 54px);
  line-height: 1.1;
  letter-spacing: .01em;
  color: var(--kx-ink);
  max-width: 15em;
}

.page-about .ab-lede {
  margin-top: 18px;
  max-width: 46ch;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.78;
  color: var(--kx-mist);
}

.page-about .ab-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  list-style: none;
  margin-top: 24px;
  padding: 18px 0 0;
  border-top: 1px dashed var(--kx-line);
}

.page-about .ab-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 7px;
  font-size: 13px;
  color: var(--kx-mist);
}

.page-about .ab-hero__factnum {
  font-family: var(--kx-font-mono);
  font-size: 22px;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--kx-amber);
}

.page-about .ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .ab-hero__media {
  position: relative;
  margin: 0;
  padding: 10px;
  background: var(--kx-panel);
  border: 1px solid var(--kx-line);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-about .ab-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--kx-hull);
}

.page-about .ab-hero__stamp {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 1;
  padding: 4px 10px;
  font-family: var(--kx-font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--kx-void);
  background: var(--kx-amber);
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-about .ab-hero__media .kx-media__cap {
  display: block;
  padding: 10px 2px 2px;
  font-family: var(--kx-font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--kx-dim);
}

/* ---------- 分区布局 ---------- */
.page-about .ab-layout {
  padding-top: clamp(32px, 5vw, 64px);
  padding-bottom: clamp(48px, 7vw, 88px);
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.page-about .ab-toc {
  min-width: 0;
}

.page-about .ab-toc__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
}

.page-about .ab-toc__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 10px;
  border-left: 2px solid transparent;
  font-family: var(--kx-font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--kx-mist);
  text-decoration: none;
  transition: color .2s var(--kx-ease), background-color .2s var(--kx-ease), border-color .2s var(--kx-ease);
}

.page-about .ab-toc__link:hover {
  color: var(--kx-ink);
  background: rgba(55, 214, 230, .07);
}

.page-about .ab-toc__link[aria-current="true"],
.page-about .ab-toc__link[aria-current="page"] {
  color: var(--kx-cyan);
  border-left-color: var(--kx-cyan);
  background: rgba(55, 214, 230, .09);
}

.page-about .ab-toc__no {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--kx-dim);
}

.page-about .ab-toc__link[aria-current="true"] .ab-toc__no,
.page-about .ab-toc__link[aria-current="page"] .ab-toc__no {
  color: var(--kx-amber);
}

.page-about .ab-toc__home {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--kx-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--kx-dim);
  text-decoration: none;
  border-bottom: 1px dashed var(--kx-line);
  padding-bottom: 3px;
}

.page-about .ab-toc__home:hover {
  color: var(--kx-cyan);
  border-bottom-color: var(--kx-cyan);
}

.page-about .ab-body {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-about .ab-sec {
  padding-bottom: clamp(34px, 5vw, 62px);
  margin-bottom: clamp(30px, 4.5vw, 54px);
  border-bottom: 1px solid var(--kx-line);
}

.page-about .ab-sec--last {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-about .ab-sec__head h2 {
  margin-top: 12px;
  font-family: var(--kx-font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.6vw, 32px);
  line-height: 1.25;
  color: var(--kx-ink);
}

.page-about .ab-sec__lede {
  margin-top: 12px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--kx-mist);
}

/* ---------- 图 ---------- */
.page-about .ab-figure {
  margin-top: clamp(20px, 3vw, 28px);
  border: 1px solid var(--kx-line);
  background: var(--kx-hull);
  padding: 8px;
}

.page-about .ab-figure--narrow {
  max-width: 640px;
}

.page-about .ab-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--kx-panel);
}

.page-about .ab-figure .kx-media__cap {
  display: block;
  padding: 9px 2px 2px;
  font-family: var(--kx-font-mono);
  font-size: 11px;
  line-height: 1.6;
  color: var(--kx-dim);
}

/* ---------- 时间轴 ---------- */
.page-about .ab-timeline {
  position: relative;
  list-style: none;
  margin-top: clamp(22px, 3.5vw, 32px);
  padding: 0 0 0 26px;
}

.page-about .ab-timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--kx-cyan) 0%, var(--kx-amber) 62%, var(--kx-line) 100%);
}

.page-about .ab-timeline__item {
  position: relative;
  padding-bottom: clamp(20px, 3vw, 28px);
}

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

.page-about .ab-timeline__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: .6em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--kx-cyan);
  box-shadow: 0 0 0 4px rgba(55, 214, 230, .13);
}

.page-about .ab-timeline__year {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--kx-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--kx-amber);
}

.page-about .ab-timeline__item h3 {
  font-family: var(--kx-font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  color: var(--kx-ink);
}

.page-about .ab-timeline__item p {
  margin-top: 6px;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--kx-mist);
}

/* ---------- 频道分层 ---------- */
.page-about .ab-layers {
  display: grid;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .ab-layer {
  position: relative;
  padding: 22px 18px 20px;
  background: linear-gradient(180deg, rgba(16, 30, 51, .95), rgba(10, 19, 34, .95));
  border: 1px solid var(--kx-line);
  border-top: 2px solid var(--kx-cyan);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-about .ab-layer--amber {
  border-top-color: var(--kx-amber);
}

.page-about .ab-layer--mist {
  border-top-color: var(--kx-dim);
}

.page-about .ab-layer__num {
  display: block;
  font-family: var(--kx-font-mono);
  font-size: clamp(32px, 6vw, 44px);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--kx-cyan);
}

.page-about .ab-layer--amber .ab-layer__num {
  color: var(--kx-amber);
}

.page-about .ab-layer--mist .ab-layer__num {
  color: var(--kx-mist);
}

.page-about .ab-layer h3 {
  margin-top: 10px;
  font-family: var(--kx-font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: .02em;
  color: var(--kx-ink);
}

.page-about .ab-layer p {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--kx-mist);
}

.page-about .ab-note {
  margin-top: 16px;
  padding-left: 12px;
  border-left: 3px solid var(--kx-amber-deep);
  font-family: var(--kx-font-mono);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--kx-mist);
}

.page-about .ab-note a {
  color: var(--kx-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 214, 230, .45);
}

.page-about .ab-note a:hover {
  border-bottom-color: var(--kx-cyan);
}

/* ---------- 团队 ---------- */
.page-about .ab-roles {
  display: grid;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .ab-role {
  padding: 16px 16px 18px;
  background: var(--kx-panel);
  border: 1px solid var(--kx-line);
  border-left: 3px solid var(--kx-cyan-deep);
}

.page-about .ab-role h3 {
  font-family: var(--kx-font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--kx-ink);
}

.page-about .ab-role p {
  margin-top: 7px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--kx-mist);
}

.page-about .ab-checks {
  margin-top: clamp(22px, 3.5vw, 32px);
  padding: 20px 18px;
  background: linear-gradient(135deg, rgba(22, 121, 133, .16), rgba(16, 30, 51, .55));
  border: 1px solid var(--kx-line);
}

.page-about .ab-checks h3 {
  font-family: var(--kx-font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: .04em;
  color: var(--kx-amber);
}

.page-about .ab-checks__list {
  list-style: none;
  margin-top: 14px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .ab-checks__list li {
  display: grid;
  gap: 4px;
  padding-left: 12px;
  border-left: 2px solid var(--kx-line);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--kx-mist);
}

.page-about .ab-checks__k {
  font-family: var(--kx-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--kx-cyan);
}

/* ---------- 指标 ---------- */
.page-about .ab-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .ab-stat {
  padding: 18px 14px 16px;
  background: linear-gradient(180deg, rgba(16, 30, 51, .9), rgba(5, 10, 18, .9));
  border: 1px solid var(--kx-line);
  border-top: 2px solid var(--kx-line);
}

.page-about .ab-stat--amber {
  border-top-color: var(--kx-amber);
}

.page-about .ab-stat__num {
  display: block;
  font-family: var(--kx-font-mono);
  font-size: clamp(28px, 5vw, 38px);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--kx-cyan);
}

.page-about .ab-stat--amber .ab-stat__num {
  color: var(--kx-amber);
}

.page-about .ab-stat__label {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--kx-mist);
}

.page-about .ab-scenes {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3.5vw, 30px);
}

.page-about .ab-scene {
  padding-left: 14px;
  border-left: 1px solid var(--kx-line);
}

.page-about .ab-scene h3 {
  font-family: var(--kx-font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .03em;
  color: var(--kx-ink);
}

.page-about .ab-scene p {
  margin-top: 7px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--kx-mist);
}

/* ---------- 合作生态 ---------- */
.page-about .ab-graph {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 28px);
  padding: 20px 16px;
  border: 1px solid var(--kx-line);
  background:
    linear-gradient(rgba(34, 52, 75, .34) 1px, transparent 1px) 0 0 / 100% 34px,
    linear-gradient(90deg, rgba(34, 52, 75, .34) 1px, transparent 1px) 0 0 / 34px 100%,
    var(--kx-hull);
}

.page-about .ab-node {
  display: inline-flex;
  align-items: center;
  padding: 9px 13px;
  font-family: var(--kx-font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  line-height: 1.4;
  border: 1px solid var(--kx-line);
  background: rgba(16, 30, 51, .92);
  color: var(--kx-mist);
}

.page-about .ab-node--hub {
  color: var(--kx-void);
  background: var(--kx-cyan);
  border-color: var(--kx-cyan);
  font-weight: 600;
  letter-spacing: .08em;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

.page-about .ab-node--c1 {
  border-color: rgba(55, 214, 230, .45);
  color: var(--kx-ink);
}

.page-about .ab-node--c2 {
  border-color: rgba(73, 214, 160, .42);
  color: var(--kx-ink);
}

.page-about .ab-node--c3 {
  border-color: rgba(243, 182, 75, .45);
  color: var(--kx-ink);
}

.page-about .ab-node--c4 {
  border-color: rgba(167, 188, 212, .42);
  color: var(--kx-ink);
}

.page-about .ab-partner-notes {
  list-style: none;
  margin-top: clamp(18px, 3vw, 24px);
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .ab-partner-notes li {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  background: rgba(16, 30, 51, .55);
  border: 1px solid var(--kx-line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--kx-mist);
}

.page-about .ab-partner-notes__k {
  font-family: var(--kx-font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--kx-amber);
}

/* ---------- 认证与联系 ---------- */
.page-about .ab-trust {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-about .ab-trust__card {
  padding: 22px 18px;
  background:
    radial-gradient(120% 100% at 0% 0%, rgba(243, 182, 75, .16), transparent 62%),
    var(--kx-panel);
  border: 1px solid var(--kx-line);
}

.page-about .ab-trust__mark {
  display: inline-block;
  padding: 6px 14px;
  font-family: var(--kx-font-mono);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--kx-void);
  background: var(--kx-amber);
  clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
}

.page-about .ab-trust__card p {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--kx-mist);
}

.page-about .ab-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--kx-line);
}

.page-about .ab-contact__row {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid var(--kx-line);
}

.page-about .ab-contact__k {
  font-family: var(--kx-font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--kx-dim);
}

.page-about .ab-contact__v {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--kx-ink);
  word-break: break-word;
}

/* ---------- 返回顶部 ---------- */
.page-about .ab-top {
  position: fixed;
  right: max(14px, env(safe-area-inset-right));
  bottom: max(14px, env(safe-area-inset-bottom));
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 13px;
  font-family: var(--kx-font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--kx-ink);
  text-decoration: none;
  background: rgba(10, 19, 34, .92);
  border: 1px solid var(--kx-line);
  border-left: 2px solid var(--kx-cyan);
  transition: color .2s var(--kx-ease), border-color .2s var(--kx-ease), background-color .2s var(--kx-ease);
}

.page-about .ab-top:hover {
  color: var(--kx-cyan);
  border-color: var(--kx-cyan);
}

.page-about .ab-top__arrow {
  color: var(--kx-amber);
  font-size: 13px;
  line-height: 1;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .ab-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .ab-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .ab-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

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

  .page-about .ab-trust {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 22px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-about .ab-layers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .ab-contact__row {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 1000px) {
  .page-about .ab-layout {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 64px);
    align-items: start;
  }

  .page-about .ab-toc {
    position: sticky;
    top: calc(var(--kx-shell-h) + 24px);
  }

  .page-about .ab-toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
    margin-top: 14px;
  }

  .page-about .ab-toc__link {
    width: 100%;
  }

  .page-about .ab-toc__home {
    margin-top: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}
<<<PAGE_CSS_END>>>
<<<END>>>