.page-about {
  --about-rail: 190px;
  --about-gap: clamp(24px, 4vw, 56px);
  --about-pad: clamp(18px, 3vw, 34px);
  --about-line: rgba(169, 139, 255, 0.34);
  color: var(--ink);
  padding: 12px 0 64px;
}

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

/* ---------- 框景首屏 ---------- */

.page-about .about-frame {
  position: relative;
  border: 1px solid var(--glass-brd);
  border-radius: var(--radius);
  padding: calc(var(--about-pad) + 10px) var(--about-pad) var(--about-pad);
  background:
    radial-gradient(120% 100% at 88% 0%, rgba(123, 77, 255, 0.22), rgba(11, 27, 58, 0) 62%),
    linear-gradient(180deg, rgba(18, 42, 85, 0.74), rgba(11, 27, 58, 0.92));
  overflow: hidden;
}

.page-about .about-frame::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--line-strong) 0 1px, transparent 1px 22px);
  opacity: 0.75;
}

.page-about .about-frame::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -50px;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  border: 1px solid rgba(123, 77, 255, 0.3);
  pointer-events: none;
}

.page-about .about-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 14px;
}

.page-about .about-kicker {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--neon-soft);
  margin: 0 0 12px;
}

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

.page-about .about-hero__main h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5vw, 50px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
  max-width: 15em;
  color: var(--glass);
}

.page-about .about-hero__lead {
  font-size: clamp(16px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--ink-dim);
  max-width: 34em;
  margin: 0 0 24px;
}

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

.page-about .about-frame__media {
  margin: clamp(26px, 4vw, 48px) 0 0;
}

.page-about .about-frame__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-brd);
  background: linear-gradient(140deg, rgba(18, 42, 85, 0.9), rgba(123, 77, 255, 0.28));
}

.page-about .about-frame__caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--ink-dim);
  letter-spacing: 0.02em;
}

/* ---------- 通用分栏 ---------- */

.page-about .about-band {
  margin-top: clamp(48px, 7vw, 96px);
}

.page-about .about-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .about-rail__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--neon-soft);
}

.page-about .about-rail__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-dim);
  max-width: 22em;
}

.page-about .about-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
}

.page-about .about-rail__link {
  position: relative;
  display: inline-block;
  padding-bottom: 2px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--ink-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  color: var(--neon-soft);
  border-bottom-color: var(--neon-soft);
  outline: none;
}

.page-about .about-body > * + * {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-about .about-body .prose p {
  margin: 0 0 16px;
}

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

.page-about .about-more {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-dim);
  margin: 0;
}

.page-about .about-inline-link {
  color: var(--neon-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(169, 139, 255, 0.5);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
  outline: none;
}

/* ---------- 三条主张 ---------- */

.page-about .about-claims {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-claim {
  position: relative;
  padding: 20px 20px 20px 24px;
  background: rgba(18, 42, 85, 0.72);
  border: 1px solid var(--line);
  border-left: 3px solid var(--neon);
  border-radius: var(--radius-sm);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-claim:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  border-left-color: var(--gold);
}

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

.page-about .about-claim__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--glass);
}

.page-about .about-claim__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-dim);
}

/* ---------- 阶梯时间线 ---------- */

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

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, rgba(123, 77, 255, 0.7), rgba(169, 139, 255, 0.16));
}

.page-about .about-step {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 18px 0;
  transition: background var(--dur) var(--ease);
}

.page-about .about-step::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 24px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--abyss);
  border: 2px solid var(--neon-soft);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-step:hover::before,
.page-about .about-step:focus-within::before {
  transform: scale(1.4);
  border-color: var(--gold);
  background: var(--gold);
}

.page-about .about-step__idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--neon-soft);
  margin-bottom: 6px;
}

.page-about .about-step__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.42;
  color: var(--glass);
}

.page-about .about-step__text {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-dim);
}

.page-about .about-step__result {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(242, 193, 78, 0.72);
  transition: color var(--dur) var(--ease);
}

.page-about .about-step:hover .about-step__result,
.page-about .about-step:focus-within .about-step__result {
  color: var(--gold);
}

/* ---------- 服务准则 ---------- */

.page-about .about-principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-about .about-principle {
  position: relative;
  padding: 18px 20px 18px 24px;
  background: var(--deep);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-principle::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 2px;
  background: var(--neon);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.page-about .about-principle:hover {
  background: var(--abyss);
  border-color: var(--line-strong);
}

.page-about .about-principle:hover::before {
  opacity: 1;
}

.page-about .about-principle__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--glass);
}

.page-about .about-principle__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-dim);
}

/* ---------- 独立插图 ---------- */

.page-about .about-figure {
  margin: clamp(48px, 7vw, 92px) 0 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--glass-brd);
  background: linear-gradient(160deg, rgba(11, 27, 58, 0.95), rgba(53, 208, 186, 0.16));
}

.page-about .about-figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-dim);
  max-width: 46em;
}

/* ---------- 团队构成 ---------- */

.page-about .about-team__bar {
  display: flex;
  gap: 4px;
  border: 1px solid var(--glass-brd);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-about .about-team__seg {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  padding: 16px 14px 18px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--glass);
  transition: filter var(--dur) var(--ease);
}

.page-about .about-team__seg:hover {
  filter: brightness(1.3);
}

.page-about .about-team__seg--a {
  flex: 11;
  background: linear-gradient(180deg, rgba(123, 77, 255, 0.56), rgba(123, 77, 255, 0.2));
}

.page-about .about-team__seg--b {
  flex: 8;
  background: linear-gradient(180deg, rgba(53, 208, 186, 0.44), rgba(53, 208, 186, 0.14));
}

.page-about .about-team__seg--c {
  flex: 7;
  background: linear-gradient(180deg, rgba(242, 193, 78, 0.44), rgba(242, 193, 78, 0.14));
}

.page-about .about-team__num {
  display: block;
  font-size: 24px;
  line-height: 1.1;
}

.page-about .about-team__notes {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-team__notes li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-dim);
}

.page-about .about-team__notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 10px;
  height: 1px;
  background: var(--neon-soft);
}

/* ---------- 设备适配 ---------- */

.page-about .about-body--devices {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-about .about-devices__media {
  margin: 0;
}

.page-about .about-devices__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--glass-brd);
  background: linear-gradient(150deg, rgba(11, 27, 58, 0.96), rgba(123, 77, 255, 0.22));
}

/* ---------- 覆盖范围 ---------- */

.page-about .about-map {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 10px;
}

.page-about .about-map__node {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 14px 16px;
  background: var(--deep);
  border: 1px solid var(--line);
  border-left: 3px solid var(--neon-soft);
  border-radius: var(--radius-sm);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-map__node:hover {
  transform: translateY(-2px);
  background: var(--abyss);
  border-color: var(--line-strong);
  border-left-color: var(--gold);
}

.page-about .about-map__node--core {
  border-left-color: var(--teal);
}

.page-about .about-map__node--core:hover {
  border-left-color: var(--teal);
}

.page-about .about-map__name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--glass);
}

.page-about .about-map__num {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
}

.page-about .about-map__note {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 行业参与 ---------- */

.page-about .about-honor {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-honor__item {
  display: grid;
  gap: 10px;
  padding: 18px 20px;
  background: rgba(18, 42, 85, 0.6);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color var(--dur) var(--ease);
}

.page-about .about-honor__item:hover {
  border-color: var(--line-strong);
}

.page-about .about-honor__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-dim);
}

/* ---------- 联系引导 ---------- */

.page-about .about-cta {
  margin-top: clamp(48px, 7vw, 96px);
}

.page-about .about-cta__inner {
  position: relative;
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--radius);
  border: 1px solid var(--glass-brd);
  background:
    linear-gradient(120deg, rgba(123, 77, 255, 0.28), rgba(11, 27, 58, 0.9) 62%),
    var(--deep);
  overflow: hidden;
}

.page-about .about-cta__inner::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background-image: repeating-linear-gradient(90deg, var(--neon) 0 12px, transparent 12px 24px);
  opacity: 0.7;
}

.page-about .about-cta__inner h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 700;
  color: var(--glass);
}

.page-about .about-cta__inner p {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-dim);
  max-width: 40em;
}

/* ---------- 窄屏兜底 ---------- */

@media (max-width: 560px) {
  .page-about .about-team__bar {
    flex-direction: column;
  }

  .page-about .about-team__seg {
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
    padding: 14px 16px;
  }

  .page-about .about-team__num {
    font-size: 20px;
  }

  .page-about .about-rail__list {
    gap: 6px 12px;
  }
}

/* ---------- 宽屏编辑部版式 ---------- */

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(180px, 250px) minmax(0, 1fr);
    gap: clamp(30px, 5vw, 72px);
    align-items: start;
  }

  .page-about .about-split {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: var(--about-gap);
    align-items: start;
  }

  .page-about .about-rail__sticky {
    position: sticky;
    top: 96px;
  }

  .page-about .about-rail__list {
    flex-direction: column;
    gap: 8px;
  }

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

  .page-about .about-step {
    grid-template-columns: 190px minmax(0, 1fr);
    column-gap: 32px;
  }

  .page-about .about-timeline {
    padding-left: 26px;
  }

  .page-about .about-step::before {
    left: -26px;
    top: 26px;
  }

  .page-about .about-body--devices {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 48px);
    align-items: start;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  .page-about .about-claim,
  .page-about .about-map__node,
  .page-about .about-step,
  .page-about .about-step::before,
  .page-about .about-principle,
  .page-about .about-principle::before,
  .page-about .about-team__seg,
  .page-about .about-rail__link,
  .page-about .about-inline-link,
  .page-about .about-honor__item {
    transition: none;
  }

  .page-about .about-claim:hover,
  .page-about .about-map__node:hover,
  .page-about .about-step:hover::before,
  .page-about .about-step:focus-within::before {
    transform: none;
  }
}