.page-about {
  --about-hero-glow: #16212B;
  background: var(--bg-deep);
  color: var(--text);
  overflow-x: hidden;
}

/* ===== 首屏品牌档案 ===== */
.page-about .about-hero {
  position: relative;
  padding: 36px 0 56px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(165deg, var(--about-hero-glow) 0%, var(--bg-deep) 62%);
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -160px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0, 230, 118, 0.16) 0%, rgba(0, 230, 118, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}
.page-about .about-hero__inner {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
}
.page-about .breadcrumb a {
  color: var(--blue);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-about .breadcrumb a:hover {
  color: var(--white);
}
.page-about .breadcrumb__sep {
  color: var(--text-muted);
}
.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: end;
}
.page-about .about-hero__content {
  position: relative;
  z-index: 1;
}
.page-about .about-hero .section-label {
  color: var(--brand);
}
.page-about .about-hero h1 {
  margin: 16px 0 20px;
  font-family: var(--heading-font);
  font-size: clamp(3rem, 8vw, 5.4rem);
  line-height: 0.94;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  color: var(--white);
}
.page-about .about-hero h1::before {
  content: "";
  display: block;
  width: 72px;
  height: 6px;
  background: linear-gradient(90deg, var(--brand), var(--blue));
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
}
.page-about .about-hero__slogan {
  display: block;
  color: var(--brand);
}
.page-about .about-hero__lead {
  max-width: 580px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-dim);
  margin-bottom: 24px;
}
.page-about .about-hero__statboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.02);
  max-width: 560px;
}
.page-about .hero-stat {
  padding: 16px 12px;
  text-align: center;
  border-right: 1px solid var(--line-soft);
}
.page-about .hero-stat:last-child {
  border-right: 0;
}
.page-about .hero-stat__num {
  display: block;
  font-family: var(--data-font);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--white);
}
.page-about .hero-stat__unit {
  color: var(--brand);
  font-size: 1rem;
}
.page-about .hero-stat__label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}
.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--bg-panel);
}
.page-about .about-hero__figure img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}
.page-about .about-hero__figcap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  font-size: 12px;
  color: var(--text-dim);
  border-top: 1px solid var(--line-soft);
}

/* ===== 品牌使命 ===== */
.page-about .about-mission {
  padding: 64px 0;
}
.page-about .about-mission__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.page-about .about-mission__copy h2,
.page-about .about-history__title h2,
.page-about .about-capability__head h2,
.page-about .about-tech__intro h2,
.page-about .about-partners__head h2,
.page-about .about-recognition__head h2,
.page-about .about-cta__title h2 {
  margin: 14px 0 12px;
  font-family: var(--heading-font);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.02;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--white);
}
.page-about .about-mission__slogan {
  font-size: 15px;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 16px;
}
.page-about .about-mission__copy p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
  margin-bottom: 16px;
}
.page-about .about-mission__actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.page-about .about-mission__aside {
  position: relative;
  padding: 28px 24px;
  background: var(--bg-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.page-about .about-mission__aside::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--brand);
}
.page-about .about-mission__quote-mark {
  font-family: Georgia, serif;
  font-size: 64px;
  line-height: 1;
  color: var(--brand);
  margin-bottom: -8px;
}
.page-about .about-mission__aside blockquote {
  margin: 0 0 18px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
}
.page-about .about-mission__aside-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== 发展历程横向时间线 ===== */
.page-about .about-history {
  padding: 0 0 56px;
  border-top: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(20, 28, 35, 0.6) 0%, var(--bg-deep) 45%);
}
.page-about .about-history__head {
  margin-bottom: 20px;
}
.page-about .about-history__head p {
  color: var(--text-dim);
  font-size: 15px;
  max-width: 520px;
}
.page-about .about-history__scroller {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  gap: 14px;
  padding: 4px 24px 20px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--brand) transparent;
}
.page-about .about-history__scroller::-webkit-scrollbar {
  height: 6px;
}
.page-about .about-history__scroller::-webkit-scrollbar-thumb {
  background: rgba(0, 230, 118, 0.5);
  border-radius: var(--radius-pill);
}
.page-about .about-history__track {
  display: flex;
  gap: 14px;
  min-width: max-content;
  align-items: stretch;
}
.page-about .timeline-item {
  scroll-snap-align: start;
  position: relative;
  width: 260px;
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  background: var(--bg-panel);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.page-about .timeline-item:hover,
.page-about .timeline-item:focus-within {
  border-color: rgba(0, 230, 118, 0.5);
  transform: translateY(-4px);
}
.page-about .timeline-item__year {
  display: inline-flex;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: rgba(0, 230, 118, 0.1);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 14px;
}
.page-about .timeline-item__body h3 {
  font-size: 18px;
  color: var(--white);
  margin-bottom: 8px;
  line-height: 1.3;
}
.page-about .timeline-item__body p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
  margin: 0;
}
.page-about .timeline-item--img {
  width: 260px;
  padding: 0;
  overflow: hidden;
  background: var(--bg-panel-2);
}
.page-about .timeline-item--img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  aspect-ratio: 1 / 1;
}
.page-about .timeline-item__img-cap {
  display: block;
  padding: 10px 16px;
  font-size: 12px;
  color: var(--text-dim);
  border-top: 1px solid var(--line-soft);
}
.page-about .about-history__hint {
  display: flex;
  justify-content: flex-start;
  font-size: 12px;
  color: var(--text-muted);
  padding-top: 8px;
}

/* ===== 数据能力全景 ===== */
.page-about .about-capability {
  padding: 56px 0;
  border-bottom: 1px solid var(--line-soft);
}
.page-about .about-capability__head {
  max-width: 640px;
  margin-bottom: 24px;
}
.page-about .about-capability__head p {
  color: var(--text-dim);
  font-size: 15px;
}
.page-about .about-capability__dashboard {
  padding: 28px 20px;
  background: var(--bg-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.page-about .capability-main {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 50% 40%, rgba(0, 230, 118, 0.07), transparent 70%),
    repeating-linear-gradient(120deg, rgba(255, 255, 255, 0.015) 0px, rgba(255, 255, 255, 0.015) 1px, transparent 1px, transparent 12px);
}
.page-about .capability-orbit {
  position: relative;
  width: 210px;
  height: 210px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-about .capability-orbit__ring {
  position: absolute;
  border-radius: 50%;
}
.page-about .capability-orbit__ring--outer {
  inset: 0;
  border: 2px dashed rgba(0, 230, 118, 0.45);
}
.page-about .capability-orbit__ring--inner {
  inset: 16px;
  border: 1px solid rgba(0, 230, 118, 0.2);
}
.page-about .capability-orbit__core {
  text-align: center;
}
.page-about .capability-orbit__value {
  display: block;
  font-family: var(--data-font);
  font-size: 3.4rem;
  font-weight: 500;
  line-height: 1;
  color: var(--brand);
}
.page-about .capability-orbit__unit {
  display: block;
  font-size: 13px;
  color: var(--white);
  margin: 4px 0 6px;
}
.page-about .capability-orbit__label {
  font-size: 12px;
  color: var(--text-muted);
}
.page-about .capability-main__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}
.page-about .capability-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .capability-card {
  padding: 18px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-panel-2);
  border: 1px solid var(--line-soft);
  text-align: center;
  transition: border-color 0.2s ease;
}
.page-about .capability-card:hover,
.page-about .capability-card:focus-within {
  border-color: rgba(0, 176, 255, 0.6);
}
.page-about .capability-card__num {
  display: block;
  font-family: var(--data-font);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--blue);
  line-height: 1;
}
.page-about .capability-card__unit {
  font-size: 1rem;
  color: var(--text-dim);
}
.page-about .capability-card__label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 10px;
}

/* ===== 技术架构 ===== */
.page-about .about-tech {
  padding: 56px 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: #0E1218;
}
.page-about .about-tech__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.page-about .about-tech__intro p {
  color: var(--text-dim);
  font-size: 15px;
  max-width: 560px;
  margin-bottom: 20px;
}
.page-about .about-tech__stack {
  display: grid;
  gap: 12px;
}
.page-about .tech-layer {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  align-items: start;
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  transition: border-color 0.2s ease;
}
.page-about .tech-layer:hover,
.page-about .tech-layer:focus-within {
  border-color: rgba(179, 136, 255, 0.6);
}
.page-about .tech-layer__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-size: 13px;
  font-weight: 500;
  color: var(--violet);
  background: rgba(179, 136, 255, 0.1);
  clip-path: polygon(0 0, 100% 0, 86% 100%, 0 100%);
}
.page-about .tech-layer__content h3 {
  font-size: 16px;
  margin: 0 0 6px;
  color: var(--white);
}
.page-about .tech-layer__content p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-dim);
  margin: 0;
}
.page-about .tech-layer__status {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
  padding-top: 8px;
  border-top: 1px dashed var(--line-soft);
}

/* ===== 合作伙伴网络 ===== */
.page-about .about-partners {
  padding: 56px 0;
  border-bottom: 1px solid var(--line-soft);
}
.page-about .about-partners__head {
  max-width: 640px;
  margin-bottom: 24px;
}
.page-about .about-partners__head p {
  color: var(--text-dim);
  font-size: 15px;
}
.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 28px;
}
.page-about .partner-card {
  padding: 22px 20px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 61, 0, 0.04) 0%, rgba(255, 61, 0, 0) 45%);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.page-about .partner-card:hover,
.page-about .partner-card:focus-within {
  border-color: rgba(255, 61, 0, 0.5);
  background: linear-gradient(135deg, rgba(255, 61, 0, 0.09) 0%, rgba(255, 61, 0, 0) 60%);
}
.page-about .partner-card__icon {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  background: rgba(255, 61, 0, 0.12);
  color: var(--accent);
  font-size: 16px;
  margin-bottom: 14px;
}
.page-about .partner-card h3 {
  font-size: 17px;
  margin: 0 0 8px;
  color: var(--white);
}
.page-about .partner-card p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-dim);
  margin: 0;
}
.page-about .about-partners__banner {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--bg-panel);
}
.page-about .about-partners__banner img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ===== 资质与荣誉 ===== */
.page-about .about-recognition {
  padding: 56px 0;
  border-bottom: 1px solid var(--line-soft);
}
.page-about .about-recognition__head {
  max-width: 640px;
  margin-bottom: 24px;
}
.page-about .about-recognition__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-about .recognition-card {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  align-items: start;
  padding: 18px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  transition: border-color 0.2s ease;
  position: relative;
}
.page-about .recognition-card:hover,
.page-about .recognition-card:focus-within {
  border-color: rgba(0, 230, 118, 0.5);
}
.page-about .recognition-card--highlight {
  background: linear-gradient(135deg, rgba(255, 214, 0, 0.08) 0%, rgba(255, 214, 0, 0) 55%);
}
.page-about .recognition-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 230, 118, 0.12);
  color: var(--brand);
  font-size: 18px;
}
.page-about .recognition-card--highlight .recognition-card__icon {
  background: rgba(255, 214, 0, 0.15);
  color: var(--gold);
}
.page-about .recognition-card__body h3 {
  font-size: 16px;
  margin: 0 0 6px;
  color: var(--white);
}
.page-about .recognition-card__body p {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
  margin: 0;
}
.page-about .recognition-card__year {
  grid-column: 1 / -1;
  display: inline-flex;
  font-size: 12px;
  color: var(--text-muted);
  padding-top: 10px;
  border-top: 1px dashed var(--line-soft);
}

/* ===== 底部探索区 ===== */
.page-about .about-cta {
  padding: 48px 0;
}
.page-about .about-cta__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
  justify-content: space-between;
  align-items: flex-start;
}
.page-about .about-cta__title h2 {
  margin-bottom: 0;
}
.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 桌面端适配 ===== */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 48px 0 64px;
  }
  .page-about .about-hero__grid {
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
  }
  .page-about .about-hero__figure {
    order: 2;
    align-self: stretch;
  }
  .page-about .about-mission__layout {
    grid-template-columns: 1.4fr 0.9fr;
    gap: 48px;
  }
  .page-about .about-history__scroller {
    padding-left: 24px;
    padding-right: 24px;
  }
  .page-about .about-history__track {
    gap: 18px;
  }
  .page-about .timeline-item {
    width: 280px;
  }
  .page-about .timeline-item--img {
    width: 280px;
  }
  .page-about .about-capability__dashboard {
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    align-items: center;
    padding: 36px 32px;
  }
  .page-about .capability-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .page-about .about-tech__layout {
    grid-template-columns: 0.8fr 1.4fr;
    gap: 48px;
  }
  .page-about .tech-layer {
    grid-template-columns: 52px 1fr auto;
    align-items: center;
    gap: 16px;
    padding: 20px;
  }
  .page-about .tech-layer__status {
    grid-column: auto;
    border-top: 0;
    border-left: 1px solid var(--line-soft);
    padding: 0 0 0 16px;
    margin-left: 8px;
  }
  .page-about .about-partners__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .page-about .about-recognition__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .page-about .about-cta__inner {
    flex-direction: row;
    align-items: center;
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero h1 {
    font-size: 5.4rem;
  }
  .page-about .about-history__scroller {
    padding-left: calc((100vw - 1280px) / 2 + 24px);
    padding-right: 24px;
  }
  .page-about .about-partners__grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-recognition__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}