.page-about {
  --about-card: rgba(20, 26, 58, 0.72);
  --about-card-deep: rgba(10, 14, 39, 0.82);
  color: var(--text);
}

.page-about .about-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 4.6vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  font-weight: 800;
  color: var(--paper);
}

.page-about .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: 22px 0 0;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 88% -10%, rgba(108, 63, 197, 0.5), transparent 62%),
    radial-gradient(90% 70% at -10% 110%, rgba(0, 229, 255, 0.16), transparent 64%),
    var(--deep);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -18%;
  width: 72%;
  height: 150%;
  background: linear-gradient(112deg, transparent 42%, rgba(0, 229, 255, 0.12) 48%, transparent 55%);
  transform: skewX(-10deg);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .crumbs {
  margin-bottom: 18px;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 28px;
}

.page-about .about-hero__copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.6vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 17ch;
}

.page-about .about-hero__lede {
  margin: 20px 0 0;
  max-width: 46ch;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.85;
}

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

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .about-hero__fact {
  padding: 14px 16px;
  background: var(--about-card-deep);
}

.page-about .about-hero__fact dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.page-about .about-hero__fact dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-hero__fact dd span {
  margin-left: 4px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
}

.page-about .about-hero__visual {
  margin: 30px 0 0;
  border: 1px solid var(--line-cyan);
  border-bottom: 0;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  overflow: hidden;
  background: var(--indigo);
}

.page-about .about-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 品牌定位 ---------- */
.page-about .about-position {
  padding: clamp(46px, 8vw, 96px) 0 clamp(38px, 6vw, 62px);
}

.page-about .about-position__grid {
  display: grid;
  gap: 22px;
}

.page-about .about-position__body p {
  margin: 0 0 16px;
  max-width: 38em;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.85;
}

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

.page-about .about-position__lines {
  grid-column: 1 / -1;
  display: grid;
  gap: 10px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-position__lines li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 0 0;
  border-top: 1px solid var(--line-cyan);
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-about .about-position__lines .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--cyan);
  letter-spacing: 0.1em;
}

/* ---------- 版本轨道 ---------- */
.page-about .about-track {
  padding: clamp(46px, 8vw, 96px) 0;
  background: linear-gradient(180deg, rgba(20, 26, 58, 0.55), transparent 82%);
  border-top: 1px solid var(--line-soft);
}

.page-about .about-track__note,
.page-about .about-crew__intro,
.page-about .about-reach__intro {
  margin: 16px 0 0;
  max-width: 40em;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.85;
}

.page-about .about-track__layout {
  display: grid;
  gap: 34px;
  margin-top: 34px;
}

.page-about .about-track__list {
  position: relative;
  margin: 0;
  padding: 0 0 0 28px;
  list-style: none;
}

.page-about .about-track__list::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 12px;
  bottom: 26px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--nebula) 58%, var(--orange));
  opacity: 0.6;
}

.page-about .about-track__node {
  position: relative;
  padding-bottom: 28px;
}

.page-about .about-track__node::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--deep);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 255, 0.1);
}

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

.page-about .about-track__node:last-child::before {
  border-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.14);
}

.page-about .about-track__ver {
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
}

.page-about .about-track__title {
  margin: 10px 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-track__body {
  margin: 0;
  max-width: 34em;
  color: var(--text-muted);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-about .about-track__aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .about-track__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--indigo);
}

.page-about .about-track__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-track__panel .link {
  display: inline-block;
  margin-top: 12px;
}

/* ---------- 团队 ---------- */
.page-about .about-crew {
  padding: clamp(46px, 8vw, 96px) 0;
}

.page-about .about-crew__grid {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.page-about .about-crew__card {
  position: relative;
  padding: 22px 20px;
  border: 1px solid var(--line-soft);
  border-radius: 22px 22px 22px 6px;
  background: linear-gradient(152deg, rgba(108, 63, 197, 0.2), rgba(20, 26, 58, 0.86) 62%);
  overflow: hidden;
}

.page-about .about-crew__card::after {
  content: "";
  position: absolute;
  right: -34px;
  bottom: -46px;
  width: 128px;
  height: 128px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.2), transparent 70%);
  pointer-events: none;
}

.page-about .about-crew__card--editor { border-top: 3px solid var(--cyan); }
.page-about .about-crew__card--data { border-top: 3px solid var(--mint); border-radius: 22px 6px 22px 22px; }
.page-about .about-crew__card--ops { border-top: 3px solid var(--orange); border-radius: 6px 22px 22px 22px; }
.page-about .about-crew__card--service { border-top: 3px solid var(--nebula); border-radius: 22px 22px 6px 22px; }

.page-about .about-crew__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-crew__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-about .about-crew__figure {
  position: relative;
  margin: 0;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--indigo);
  min-height: 240px;
}

.page-about .about-crew__figure img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-about .about-crew__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px 18px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--paper);
  background: linear-gradient(180deg, transparent, rgba(10, 14, 39, 0.92));
}

/* ---------- 覆盖 ---------- */
.page-about .about-reach {
  padding: clamp(46px, 8vw, 96px) 0;
  background:
    radial-gradient(80% 70% at 50% 0%, rgba(0, 229, 255, 0.1), transparent 72%),
    var(--indigo);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-reach__band {
  display: grid;
  gap: 12px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-reach__item {
  padding: 18px 18px 20px;
  border: 1px solid var(--line-soft);
  border-radius: 18px;
  background: rgba(10, 14, 39, 0.62);
}

.page-about .about-reach__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(34px, 7vw, 58px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-reach__num span {
  margin-left: 3px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--text-muted);
}

.page-about .about-reach__item:nth-child(2) .about-reach__num { color: var(--orange); }
.page-about .about-reach__item:nth-child(3) .about-reach__num { color: var(--mint); }
.page-about .about-reach__item:nth-child(4) .about-reach__num { color: var(--paper); }

.page-about .about-reach__label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
}

.page-about .about-reach__bar {
  display: block;
  height: 4px;
  margin-top: 16px;
  border-radius: 99px;
  background: rgba(201, 214, 240, 0.14);
  overflow: hidden;
}

.page-about .about-reach__bar i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--cyan);
  transition: transform 0.6s var(--ease), filter 0.2s var(--ease);
  transform-origin: left center;
}

.page-about .about-reach__item:nth-child(1) .about-reach__bar i { width: 100%; }
.page-about .about-reach__item:nth-child(2) .about-reach__bar i { width: 84%; background: var(--orange); }
.page-about .about-reach__item:nth-child(3) .about-reach__bar i { width: 46%; background: var(--mint); }
.page-about .about-reach__item:nth-child(4) .about-reach__bar i { width: 72%; background: var(--silver); }

.page-about .about-reach__item:hover .about-reach__bar i,
.page-about .about-reach__item:focus-within .about-reach__bar i {
  filter: brightness(1.35);
}

.page-about .about-reach__devices {
  margin: 28px 0 0;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
  max-width: 44em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-muted);
}

/* ---------- 更新节奏 ---------- */
.page-about .about-cadence {
  padding: clamp(46px, 8vw, 96px) 0;
}

.page-about .about-cadence__grid {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.page-about .about-cadence__card {
  padding: 20px 18px 22px;
  border-left: 2px solid var(--cyan);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: linear-gradient(180deg, rgba(20, 26, 58, 0.78), rgba(20, 26, 58, 0.18));
}

.page-about .about-cadence__card:nth-child(2) { border-left-color: var(--orange); }
.page-about .about-cadence__card:nth-child(3) { border-left-color: var(--mint); }

.page-about .about-cadence__stamp {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-cadence__card:nth-child(2) .about-cadence__stamp { color: var(--orange); }
.page-about .about-cadence__card:nth-child(3) .about-cadence__stamp { color: var(--mint); }

.page-about .about-cadence__name {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-cadence__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

/* ---------- 合作与荣誉 ---------- */
.page-about .about-eco {
  padding: clamp(46px, 8vw, 96px) 0;
  background:
    radial-gradient(70% 60% at 100% 0%, rgba(108, 63, 197, 0.32), transparent 68%),
    var(--deep);
  border-top: 1px solid var(--line-soft);
}

.page-about .about-eco__grid {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.page-about .about-eco__card {
  padding: 24px 20px 26px;
  background: linear-gradient(160deg, rgba(108, 63, 197, 0.3), rgba(20, 26, 58, 0.9) 70%);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, 100% 0, 100% 88%, 93% 100%, 0 100%);
}

.page-about .about-eco__card--b {
  background: linear-gradient(160deg, rgba(0, 229, 255, 0.18), rgba(20, 26, 58, 0.9) 72%);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 7% 100%, 0 88%);
}

.page-about .about-eco__name {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-eco__desc {
  margin: 0;
  max-width: 36em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-about .about-eco__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- 原则与承诺 ---------- */
.page-about .about-promise {
  padding: clamp(46px, 8vw, 96px) 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-promise__list {
  display: grid;
  gap: 18px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-promise__item {
  padding-top: 16px;
  border-top: 2px solid transparent;
  border-image: linear-gradient(90deg, var(--cyan), rgba(0, 229, 255, 0)) 1;
}

.page-about .about-promise__item:nth-child(2) { border-image: linear-gradient(90deg, var(--orange), rgba(255, 107, 53, 0)) 1; }
.page-about .about-promise__item:nth-child(3) { border-image: linear-gradient(90deg, var(--mint), rgba(92, 242, 180, 0)) 1; }

.page-about .about-promise__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-promise__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-muted);
}

/* ---------- CTA ---------- */
.page-about .about-cta {
  padding: clamp(40px, 7vw, 80px) 0 clamp(52px, 8vw, 96px);
}

.page-about .about-cta__inner {
  display: grid;
  gap: 24px;
  padding: 28px 22px;
  border: 1px solid var(--line-cyan);
  border-radius: var(--r-lg);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(255, 107, 53, 0.18), transparent 62%),
    linear-gradient(160deg, rgba(20, 26, 58, 0.95), rgba(10, 14, 39, 0.95));
}

.page-about .about-cta__desc {
  margin: 14px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-about .about-hero {
    padding-top: 28px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: end;
    gap: 36px;
  }

  .page-about .about-position__lines {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

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

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

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

  .page-about .about-promise__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 34px 32px;
  }
}

@media (min-width: 900px) {
  .page-about .about-position__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: 44px;
    row-gap: 26px;
  }

  .page-about .about-position__lines {
    margin-top: 16px;
  }

  .page-about .about-track__layout {
    grid-template-columns: minmax(0, 1fr) 350px;
    gap: 44px;
    align-items: start;
  }

  .page-about .about-track__aside {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-about .about-crew__grid {
    grid-template-columns: 1.15fr 1fr 1fr;
    grid-template-areas:
      "editor data figure"
      "ops service figure";
    align-items: start;
  }

  .page-about .about-crew__card--editor { grid-area: editor; }
  .page-about .about-crew__card--data { grid-area: data; }
  .page-about .about-crew__card--ops { grid-area: ops; }
  .page-about .about-crew__card--service { grid-area: service; }
  .page-about .about-crew__figure { grid-area: figure; height: 100%; }
  .page-about .about-crew__figure img { height: 100%; aspect-ratio: auto; }
}

@media (min-width: 1080px) {
  .page-about .about-reach__band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-hero__visual {
    margin-top: 38px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-reach__bar i {
    transition: none;
  }
}
<<<END>>>