.page-about {
  --ab-wire: rgba(0, 229, 255, 0.22);
  --ab-wire-strong: rgba(0, 229, 255, 0.55);
  --ab-card-bg: linear-gradient(160deg, rgba(0, 229, 255, 0.08), rgba(157, 0, 255, 0.12));
  --ab-radius: 20px;
  position: relative;
  overflow-x: clip;
}

.page-about .container {
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 20px;
}

.page-about .section {
  position: relative;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-about .section--tight {
  position: relative;
  padding-block: 40px;
}

.page-about .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-blue);
  margin-bottom: 14px;
}

.page-about .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-green);
  box-shadow: 0 0 12px var(--c-green);
  display: inline-block;
  flex: 0 0 auto;
}

.page-about .section-title {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  line-height: 1.2;
  color: #fff;
  margin: 0 0 14px;
}

.page-about .section-intro {
  color: var(--c-text-dim);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 60ch;
}

.page-about .prose {
  color: var(--c-text-dim);
  font-size: 0.98rem;
  line-height: 1.75;
}

.page-about .prose p {
  margin: 0 0 14px;
}

.page-about .prose a {
  color: var(--c-blue);
  text-decoration: none;
}

.page-about .prose a:hover {
  text-decoration: underline;
}

.page-about .btn {
  border-radius: var(--radius-pill);
}

/* 首屏 */
.page-about .ab-hero {
  padding-top: 28px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 82% 12%, rgba(157, 0, 255, 0.22), transparent 58%),
    radial-gradient(ellipse at 8% 92%, rgba(0, 229, 255, 0.12), transparent 50%);
}

.page-about .ab-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--ab-wire) 1px, transparent 1px),
    linear-gradient(90deg, var(--ab-wire) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(circle at 72% 18%, #000, transparent 72%);
  mask-image: radial-gradient(circle at 72% 18%, #000, transparent 72%);
  pointer-events: none;
}

.page-about .ab-hero .container {
  position: relative;
  z-index: 1;
}

.page-about .ab-hero .breadcrumb {
  margin-bottom: 30px;
  color: var(--c-text-dim);
  font-size: 0.85rem;
}

.page-about .ab-hero-grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: stretch;
}

.page-about .ab-hero-copy {
  flex: 1;
}

.page-about .ab-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2.1rem, 5.5vw, 3.6rem);
  line-height: 1.14;
  margin: 0 0 18px;
  background: linear-gradient(100deg, #fff 30%, var(--c-blue) 72%, var(--c-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #fff;
}

.page-about .ab-hero-lead {
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--c-text-dim);
  max-width: 54ch;
  margin: 0;
}

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

.page-about .ab-hero-media {
  margin: 0;
  flex: 1;
  position: relative;
}

.page-about .ab-hero-media::after {
  content: '';
  position: absolute;
  right: -14px;
  bottom: -14px;
  width: 80px;
  height: 80px;
  border-right: 2px solid var(--c-purple);
  border-bottom: 2px solid var(--c-purple);
  border-radius: 0 0 18px 0;
  opacity: 0.7;
  pointer-events: none;
}

.page-about .ab-hero-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-strong);
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(157, 0, 255, 0.18);
  object-fit: cover;
}

/* 数据指标 */
.page-about .ab-stats {
  padding-top: 36px;
  padding-bottom: 18px;
}

.page-about .ab-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.page-about .ab-stats .data-panel {
  background: rgba(255, 248, 231, 0.96);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-left: 4px solid var(--c-purple);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.page-about .ab-stats .data-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(46, 31, 18, 0.66);
  text-transform: uppercase;
}

.page-about .ab-stats .data-value {
  font-family: var(--font-data);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--c-brown);
  line-height: 1.1;
}

/* 品牌概览 */
.page-about .ab-overview-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.page-about .ab-overview-copy {
  flex: 1;
}

.page-about .ab-overview-copy .prose {
  margin-top: 18px;
}

.page-about .ab-overview-panel {
  flex: 0 0 auto;
}

.page-about .ab-overview-panel .hud-card {
  background: var(--ab-card-bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 26px;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}

.page-about .ab-overview-panel .hud-card:hover {
  border-color: var(--c-blue);
  box-shadow: 0 14px 36px rgba(0, 229, 255, 0.1);
  transform: translateY(-6px);
}

.page-about .ab-overview-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-about .ab-overview-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--c-text-dim);
  line-height: 1.5;
}

/* 发展历程 */
.page-about .ab-journey {
  background: linear-gradient(180deg, transparent 0%, rgba(157, 0, 255, 0.05) 30%, rgba(0, 229, 255, 0.04) 100%);
}

.page-about .ab-journey-heading {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-bottom: 44px;
}

.page-about .ab-journey-emblem {
  flex: 0 0 auto;
  align-self: flex-start;
}

.page-about .ab-journey-emblem img {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border-strong);
  box-shadow: 0 0 26px rgba(157, 0, 255, 0.35);
}

.page-about .ab-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.page-about .ab-timeline::before {
  content: '';
  position: absolute;
  left: 30px;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-blue), var(--c-purple) 78%, var(--c-green));
  opacity: 0.4;
}

.page-about .ab-timeline-item {
  position: relative;
  display: flex;
  gap: 18px;
}

.page-about .ab-timeline-dot {
  flex: 0 0 auto;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  background: conic-gradient(from 140deg, var(--c-blue), var(--c-purple), var(--c-blue));
  border: 2px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 6px rgba(0, 229, 255, 0.1), 0 0 24px rgba(157, 0, 255, 0.35);
  z-index: 1;
}

.page-about .ab-timeline-card {
  flex: 1;
  background: rgba(10, 14, 23, 0.88);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}

.page-about .ab-timeline-card:hover {
  border-color: var(--c-blue);
  box-shadow: 0 12px 28px rgba(0, 229, 255, 0.1);
  transform: translateX(4px);
}

.page-about .ab-timeline-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-about .ab-timeline-ver {
  font-family: var(--font-data);
  font-size: 0.88rem;
  color: var(--c-blue);
}

.page-about .ab-timeline-card h3 {
  font-family: var(--font-head);
  font-size: 1.08rem;
  color: #fff;
  margin: 0 0 8px;
}

.page-about .ab-timeline-card p {
  margin: 0;
  color: var(--c-text-dim);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* 服务能力 */
.page-about .ab-section-head {
  margin-bottom: 30px;
}

.page-about .ab-services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-about .ab-services .hud-card {
  background: var(--ab-card-bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 26px 24px;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}

.page-about .ab-services .hud-card:hover {
  border-color: var(--c-blue);
  box-shadow: 0 14px 36px rgba(0, 229, 255, 0.08);
  transform: translateY(-6px);
}

.page-about .ab-service-num {
  font-family: var(--font-data);
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--c-purple);
  display: block;
  margin-bottom: 14px;
}

.page-about .ab-services .hud-title {
  font-family: var(--font-head);
  font-size: 1.06rem;
  color: #fff;
  margin-bottom: 10px;
}

.page-about .ab-services .hud-text {
  color: var(--c-text-dim);
  font-size: 0.92rem;
  line-height: 1.68;
  margin-bottom: 18px;
}

.page-about .ab-btn-mini {
  padding: 8px 18px;
  font-size: 0.85rem;
}

/* 横向流程带 */
.page-about .ab-band {
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.08), rgba(157, 0, 255, 0.14), rgba(0, 229, 255, 0.08));
  border-block: 1px solid var(--border-soft);
  padding-block: 26px;
}

.page-about .ab-band-track {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding: 4px 2px;
  scrollbar-width: thin;
  scrollbar-color: var(--c-purple) transparent;
}

.page-about .ab-band-step {
  flex: 0 0 180px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: rgba(10, 14, 23, 0.78);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 16px 14px;
  transition: border-color 0.25s, background 0.25s;
}

.page-about .ab-band-step:hover {
  border-color: var(--c-blue);
  background: rgba(0, 229, 255, 0.08);
}

.page-about .ab-band-num {
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--c-green);
}

.page-about .ab-band-step strong {
  font-family: var(--font-head);
  font-size: 0.98rem;
  color: #fff;
}

.page-about .ab-band-step small {
  color: var(--c-text-dim);
  font-size: 0.8rem;
  line-height: 1.5;
}

.page-about .ab-band-arrow {
  flex: 0 0 auto;
  align-self: center;
  color: var(--c-purple);
  font-size: 1.4rem;
  font-weight: 700;
}

/* 团队与资质 */
.page-about .ab-team-layout {
  display: flex;
  flex-direction: column;
  gap: 34px;
}

.page-about .ab-team-copy {
  flex: 1;
}

.page-about .ab-team-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-about .ab-certs {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-about .ab-cert-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  box-shadow: 0 16px 40px rgba(157, 0, 255, 0.25);
  max-width: 340px;
}

.page-about .ab-cert-img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

.page-about .ab-cert-label {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  background: rgba(10, 14, 23, 0.86);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--c-cream);
  text-align: center;
  backdrop-filter: blur(4px);
}

.page-about .ab-cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.page-about .ab-cert-mini {
  background: rgba(255, 248, 231, 0.97);
  border-radius: var(--radius-md);
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
}

.page-about .ab-cert-mini .data-value {
  font-family: var(--font-data);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-brown);
}

.page-about .ab-cert-mini .data-label {
  font-size: 0.76rem;
  color: rgba(46, 31, 18, 0.68);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* 城市坐标覆盖 */
.page-about .ab-coverage {
  border-top: 1px solid rgba(157, 0, 255, 0.22);
}

.page-about .ab-coverage-grid {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.page-about .ab-coverage-copy {
  flex: 1;
}

.page-about .ab-coverage-note {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  font-size: 0.9rem;
  color: var(--c-blue);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 8px 16px;
  background: rgba(0, 229, 255, 0.06);
}

.page-about .ab-map-layer {
  flex: 1;
  position: relative;
  background: linear-gradient(145deg, rgba(0, 229, 255, 0.05), rgba(157, 0, 255, 0.1));
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 20px;
  overflow: hidden;
}

.page-about .ab-map-layer::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(0, 229, 255, 0.4) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.18;
  pointer-events: none;
}

.page-about .ab-map-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.page-about .ab-map-zone {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 12px;
  border-radius: 14px;
  background: rgba(10, 14, 23, 0.85);
  border: 1px solid var(--border-soft);
  transition: background 0.25s, border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.page-about .ab-map-zone:hover {
  background: linear-gradient(150deg, rgba(0, 229, 255, 0.16), rgba(157, 0, 255, 0.2));
  border-color: var(--c-blue);
  transform: scale(1.04);
  box-shadow: 0 10px 24px rgba(0, 229, 255, 0.14);
}

.page-about .ab-zone-label {
  font-family: var(--font-head);
  font-size: 0.98rem;
  color: #fff;
}

.page-about .ab-zone-code {
  font-family: var(--font-data);
  font-size: 0.8rem;
  color: var(--c-text-dim);
}

.page-about .ab-map-zone--east:hover { border-color: var(--c-blue); }
.page-about .ab-map-zone--south:hover { border-color: var(--c-green); }
.page-about .ab-map-zone--north:hover { border-color: var(--c-purple); }
.page-about .ab-map-zone--central:hover { border-color: var(--c-silver); }
.page-about .ab-map-zone--southwest:hover { border-color: var(--c-orange); }
.page-about .ab-map-zone--northwest:hover { border-color: var(--c-blue); }

/* 延伸链接 */
.page-about .ab-bridge {
  border-top: 1px solid rgba(157, 0, 255, 0.22);
  background: linear-gradient(180deg, transparent, rgba(157, 0, 255, 0.06));
}

.page-about .ab-bridge-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
}

.page-about .ab-bridge-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 600px) {
  .page-about .ab-stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .ab-services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .ab-overview-grid {
    display: grid;
    grid-template-columns: 1fr;
  }

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

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

  .page-about .ab-journey-heading {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-about .ab-journey-emblem img {
    width: 200px;
    height: 200px;
  }
}

@media (min-width: 960px) {
  .page-about .ab-hero {
    padding-top: 44px;
    padding-bottom: 70px;
  }

  .page-about .ab-hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 48px;
  }

  .page-about .ab-hero-actions {
    flex-direction: row;
  }

  .page-about .ab-stats {
    padding-top: 56px;
    padding-bottom: 28px;
  }

  .page-about .ab-stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .page-about .ab-stats .data-panel {
    padding: 26px 22px;
  }

  .page-about .ab-stats .data-value {
    font-size: 2rem;
  }

  .page-about .ab-overview-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 0;
  }

  .page-about .ab-overview-panel {
    padding-left: 48px;
    padding-top: 18px;
  }

  .page-about .ab-timeline {
    gap: 30px;
  }

  .page-about .ab-timeline-item {
    gap: 26px;
  }

  .page-about .ab-timeline-card {
    max-width: 620px;
  }

  .page-about .ab-timeline-card:hover {
    transform: translateX(8px);
  }

  .page-about .ab-team-layout {
    display: grid;
    grid-template-columns: 1fr 0.9fr;
    gap: 52px;
    align-items: start;
  }

  .page-about .ab-certs {
    flex-direction: row;
    align-items: stretch;
  }

  .page-about .ab-cert-card {
    max-width: 300px;
  }

  .page-about .ab-cert-grid {
    flex: 1;
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .ab-coverage-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 40px;
    align-items: center;
  }

  .page-about .ab-bridge-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}