.page-about {
  display: block;
  background: var(--ab-green);
  color: var(--ab-snow);
  overflow-x: clip;
}

/* ---------- 首屏框景 ---------- */
.page-about .about-hero {
  position: relative;
  padding-block: clamp(22px, 4.6vw, 46px) clamp(28px, 5.4vw, 60px);
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 60%;
  background: radial-gradient(90% 120% at 82% 0%, rgba(198, 255, 61, 0.16), transparent 62%);
  pointer-events: none;
}
.page-about .about-hero__shell {
  position: relative;
  display: grid;
  gap: clamp(16px, 2.6vw, 28px);
}
.page-about .about-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ab-hair-strong);
  border-radius: var(--ab-radius-xl);
  padding: clamp(24px, 5vw, 56px) clamp(18px, 4.6vw, 56px) clamp(26px, 4.6vw, 50px);
  background:
    radial-gradient(120% 150% at 100% 0%, rgba(79, 224, 192, 0.14), transparent 58%),
    linear-gradient(165deg, var(--ab-panel), var(--ab-ink) 76%);
  box-shadow: var(--ab-shadow);
}
.page-about .about-frame__ticks {
  position: absolute;
  inset: 0 0 auto 0;
  height: 12px;
  background-image: repeating-linear-gradient(90deg, var(--ab-hair-strong) 0 1px, transparent 1px 24px);
  opacity: 0.85;
}
.page-about .about-hero__title {
  margin: clamp(14px, 2.2vw, 22px) 0 0;
  font-size: clamp(33px, 7.4vw, 82px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  transform: skewX(-2deg);
  max-width: 15ch;
}
.page-about .about-hero__lead {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.78;
  color: #D6E5DD;
}
.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 32px);
}
.page-about .about-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.page-about .about-facts li {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-radius: var(--ab-radius-md);
  background: var(--ab-panel);
  border: 1px solid var(--ab-hair);
}
.page-about .about-facts b {
  font-family: var(--ab-font-mono);
  font-size: 21px;
  font-weight: 700;
  color: var(--ab-lime);
  letter-spacing: -0.01em;
}
.page-about .about-facts span {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--ab-muted);
}
@media (min-width: 760px) {
  .page-about .about-facts { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ---------- 非对称双栏骨架 ---------- */
.page-about .about-split {
  display: block;
  padding-bottom: clamp(36px, 6vw, 72px);
}
.page-about .about-rail {
  position: sticky;
  top: calc(var(--ab-header-h) + 4px);
  z-index: 4;
  margin: 0 calc(var(--ab-gutter) * -1);
  padding: 10px var(--ab-gutter) 14px;
  background: linear-gradient(180deg, var(--ab-green) 66%, rgba(12, 43, 34, 0));
}
.page-about .about-rail__title {
  margin: 0 0 8px;
  color: var(--ab-muted);
}
.page-about .about-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-about .about-rail__list::-webkit-scrollbar { display: none; }
.page-about .about-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 14px;
  border: 1px solid var(--ab-hair);
  border-radius: var(--ab-radius-pill);
  color: var(--ab-snow);
  text-decoration: none;
  font-size: 13px;
  transition: background 0.18s var(--ab-ease), color 0.18s var(--ab-ease), transform 0.18s var(--ab-ease);
}
.page-about .about-rail__link span {
  font-size: 11px;
  color: var(--ab-muted);
}
.page-about .about-rail__link:hover {
  transform: translateX(2px);
  border-color: var(--ab-cyan);
}
.page-about .about-rail__link[aria-current="true"] {
  background: var(--ab-lime);
  color: var(--ab-ink);
  border-color: transparent;
}
.page-about .about-rail__link[aria-current="true"] span {
  color: rgba(10, 15, 13, 0.55);
}
.page-about .about-body { min-width: 0; }

@media (min-width: 960px) {
  .page-about .about-split {
    display: grid;
    grid-template-columns: 188px minmax(0, 1fr);
    gap: clamp(30px, 4.4vw, 68px);
    align-items: start;
  }
  .page-about .about-rail {
    margin: 0;
    padding: 0;
    background: none;
    top: calc(var(--ab-header-h) + 22px);
  }
  .page-about .about-rail__list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
  }
  .page-about .about-rail__link {
    width: 100%;
    border-color: transparent;
    border-radius: var(--ab-radius-md);
    padding: 10px 12px;
  }
}

/* ---------- 章节标题 ---------- */
.page-about .about-section {
  scroll-margin-top: calc(var(--ab-header-h) + 28px);
  padding-block: clamp(28px, 5vw, 62px);
}
.page-about .about-section:first-child { padding-top: 6px; }
.page-about .about-section__head {
  display: grid;
  gap: 10px;
  max-width: 68ch;
}
.page-about .about-section__no {
  margin: 0;
  font-family: var(--ab-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ab-lime);
}
.page-about .about-section__head h2 {
  margin: 0;
  font-size: clamp(25px, 4.4vw, 44px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  font-weight: 800;
  transform: skewX(-1.5deg);
}
.page-about .about-section__lead {
  margin: 0;
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.8;
  color: #CFE0D8;
}

/* ---------- 发展阶段 ---------- */
.page-about .about-stages {
  display: grid;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 34px);
}
.page-about .about-stage {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 16px;
  align-items: start;
  padding: clamp(18px, 3.2vw, 30px);
  border-radius: var(--ab-radius-lg);
  border-left: 3px solid rgba(198, 255, 61, 0.34);
  background: linear-gradient(150deg, var(--ab-panel), rgba(10, 15, 13, 0.88));
}
.page-about .about-stage__no {
  font-size: clamp(28px, 5vw, 46px);
  font-weight: 700;
  line-height: 1;
  color: var(--ab-lime);
  opacity: 0.88;
  transform: skewX(-4deg);
}
.page-about .about-stage__body {
  display: grid;
  gap: 8px;
  min-width: 0;
}
.page-about .about-stage h3 {
  margin: 0;
  font-size: clamp(17px, 2.1vw, 22px);
  font-weight: 700;
}
.page-about .about-stage p {
  margin: 0;
  font-size: clamp(14px, 1.4vw, 15.5px);
  line-height: 1.8;
  color: #C6D8CF;
}
.page-about .about-stage__meta {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--ab-muted) !important;
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: clamp(18px, 3vw, 30px) 0 0;
}
.page-about .ab-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--ab-radius-lg);
  border: 1px solid var(--ab-hair);
  background: var(--ab-ink);
}
.page-about .ab-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 25 / 16;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.06) brightness(0.94);
}
.page-about .about-media--3x2 img { aspect-ratio: 3 / 2; }
.page-about .about-media--12x7 img { aspect-ratio: 12 / 7; }
.page-about .about-media__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(198, 255, 61, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198, 255, 61, 0.14) 1px, transparent 1px);
  background-size: 46px 46px;
}
.page-about .about-figure__cap {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ab-muted);
  max-width: 62ch;
}

/* ---------- 数据条带 ---------- */
.page-about .about-band {
  margin-top: clamp(22px, 3.4vw, 38px);
  padding: clamp(16px, 2.6vw, 26px);
  border-radius: var(--ab-radius-lg);
  border: 1px solid var(--ab-hair);
  background: var(--ab-ink);
  display: grid;
  gap: 14px;
}
.page-about .about-band .ab-runway__row {
  display: grid;
  gap: 6px 14px;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "label value"
    "track track";
  align-items: center;
}
.page-about .about-band .ab-runway__label {
  grid-area: label;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--ab-muted);
}
.page-about .about-band .ab-runway__value {
  grid-area: value;
  font-family: var(--ab-font-mono);
  font-weight: 700;
  font-size: 17px;
  color: var(--ab-snow);
}
.page-about .about-band .ab-runway__track {
  grid-area: track;
  position: relative;
  display: block;
  height: 8px;
  border-radius: var(--ab-radius-pill);
  background: rgba(155, 179, 168, 0.18);
  overflow: hidden;
}
.page-about .about-band .ab-runway__fill {
  display: block;
  width: 50%;
  height: 100%;
  border-radius: var(--ab-radius-pill);
  background: linear-gradient(90deg, var(--ab-cyan), var(--ab-lime));
}
.page-about .about-band .ab-runway__fill--alt {
  background: linear-gradient(90deg, var(--ab-orange), #FFC98E);
}
@media (min-width: 760px) {
  .page-about .about-band .ab-runway__row {
    grid-template-columns: minmax(130px, 0.9fr) minmax(0, 2.4fr) 96px;
    grid-template-areas: "label track value";
    gap: 18px;
  }
}

/* ---------- 团队 ---------- */
.page-about .about-roles {
  display: grid;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 32px);
}
@media (min-width: 840px) {
  .page-about .about-roles { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.page-about .about-role {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(18px, 2.6vw, 26px);
  border-radius: var(--ab-radius-lg);
  background: var(--ab-panel);
  border-top: 2px solid rgba(79, 224, 192, 0.45);
}
.page-about .about-role:nth-child(2) { border-top-color: rgba(198, 255, 61, 0.55); }
.page-about .about-role:nth-child(3) { border-top-color: rgba(255, 138, 61, 0.6); }
.page-about .about-role__num {
  margin: 0;
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 700;
  color: var(--ab-snow);
  letter-spacing: -0.02em;
}
.page-about .about-role h3 {
  margin: 0;
  font-size: 16.5px;
}
.page-about .about-role p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: #C6D8CF;
}
.page-about .about-role__who {
  padding-top: 6px;
  font-size: 12.5px;
  color: var(--ab-amber) !important;
}
.page-about .about-media--inset { margin-top: 4px; }

/* ---------- 数据能力 ---------- */
.page-about .about-pillars {
  display: grid;
  gap: 12px;
  margin-top: clamp(18px, 3vw, 30px);
}
@media (min-width: 840px) {
  .page-about .about-pillars { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.page-about .about-pillar {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: clamp(16px, 2.4vw, 24px);
  border-radius: var(--ab-radius-lg);
  background: rgba(28, 58, 49, 0.6);
  border: 1px solid var(--ab-hair);
}
.page-about .about-pillar h3 {
  margin: 0;
  font-size: 15.5px;
  color: var(--ab-snow);
}
.page-about .about-pillar h3::before {
  content: "—";
  margin-right: 8px;
  color: var(--ab-lime);
}
.page-about .about-pillar p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: #C6D8CF;
}
.page-about .about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 2px;
  font-size: 12px;
  color: var(--ab-muted);
}
.page-about .about-tags span {
  padding: 4px 10px;
  border: 1px solid var(--ab-hair);
  border-radius: var(--ab-radius-pill);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners {
  display: grid;
  margin-top: clamp(20px, 3vw, 32px);
  border: 1px solid var(--ab-hair);
  border-radius: var(--ab-radius-lg);
  overflow: hidden;
}
.page-about .about-partner {
  display: grid;
  gap: 6px 20px;
  padding: clamp(16px, 2.6vw, 26px);
  background: rgba(10, 15, 13, 0.55);
}
.page-about .about-partner + .about-partner {
  border-top: 1px solid var(--ab-hair);
}
@media (min-width: 840px) {
  .page-about .about-partner { grid-template-columns: 196px minmax(0, 1fr); }
}
.page-about .about-partner h3 {
  margin: 0;
  font-size: 15.5px;
  color: var(--ab-lime);
}
.page-about .about-partner p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: #C6D8CF;
}
.page-about .about-inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

/* ---------- 服务标准 ---------- */
.page-about .about-service {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 32px);
  padding: clamp(18px, 3vw, 34px);
  border-radius: var(--ab-radius-xl);
  border: 1px solid var(--ab-hair-strong);
  background: linear-gradient(140deg, rgba(79, 224, 192, 0.13), rgba(10, 15, 13, 0.92) 62%);
}
@media (min-width: 840px) {
  .page-about .about-service { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.page-about .about-service__item {
  display: grid;
  gap: 8px;
  align-content: start;
  min-width: 0;
}
.page-about .about-service__item h3 {
  margin: 0;
  font-size: 14.5px;
  letter-spacing: 0.06em;
  color: var(--ab-amber);
}
.page-about .about-service__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: #C6D8CF;
  overflow-wrap: anywhere;
}
.page-about .about-service__item a {
  color: var(--ab-lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, 0.4);
  transition: color 0.18s var(--ab-ease);
}
.page-about .about-service__item a:hover { color: var(--ab-cyan); }

/* ---------- 版本节点 ---------- */
.page-about .about-spark {
  display: block;
  width: 100%;
  height: auto;
  margin: clamp(16px, 2.6vw, 26px) 0 0;
}
.page-about .about-miles {
  list-style: none;
  position: relative;
  margin: clamp(14px, 2.4vw, 24px) 0 0;
  padding: 0 0 0 26px;
  display: grid;
  gap: 20px;
}
.page-about .about-miles::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--ab-lime), rgba(79, 224, 192, 0.26));
}
.page-about .about-mile {
  position: relative;
  display: grid;
  gap: 5px;
  min-width: 0;
}
.page-about .about-mile::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 5px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ab-lime);
  box-shadow: 0 0 0 4px rgba(198, 255, 61, 0.12);
}
.page-about .about-mile__when {
  font-family: var(--ab-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ab-cyan);
}
.page-about .about-mile strong {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ab-snow);
}
.page-about .about-mile p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: #C6D8CF;
}

/* ---------- 结尾引导 ---------- */
.page-about .about-cta {
  display: grid;
  gap: 18px;
  margin: clamp(30px, 5vw, 58px) 0 clamp(38px, 6vw, 76px);
  padding: clamp(22px, 4vw, 46px);
  border-radius: var(--ab-radius-xl);
  border: 1px solid rgba(198, 255, 61, 0.28);
  background:
    radial-gradient(120% 160% at 0% 0%, rgba(198, 255, 61, 0.16), transparent 60%),
    var(--ab-ink);
}
.page-about .about-cta h2 {
  margin: 0;
  font-size: clamp(23px, 3.6vw, 38px);
  line-height: 1.16;
  font-weight: 800;
  transform: skewX(-1.5deg);
}
.page-about .about-cta p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: #CFE0D8;
}
.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
<<<END>>>