body.about-page-body {
  background-color: #ffffff;
  color: #4e5969;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.about-page-body section[hidden] { display: none !important; }
.about-hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; z-index: 0; }
.about-hero-copy { overflow-wrap: anywhere; }
.about-page-body .about-hero-metric { min-width: 0; max-width: 100%; }
.about-page-body .about-hero-metric-num { flex-wrap: wrap; }
.about-page-body .about-matrix > *, .about-values-row > *, .about-why-grid > *, .about-milestone-track > *, .about-partner-grid > * { min-width: 0; overflow-wrap: anywhere; }
.about-page-body .qc-section-lead, .about-page-body .qc-cta-title, .about-page-body .qc-cta-points, .about-page-body .qc-cta-btn { overflow-wrap: anywhere; }
.about-profile-lead p, .about-value-item p, .about-milestone-body p, .about-partner-card p { white-space: pre-line; }
.about-why-image { position: absolute; right: 0; bottom: 0; width: 96px; height: 118px; object-fit: contain; pointer-events: none; }
.about-why-item h3, .about-why-item p { position: relative; z-index: 1; }
.about-partner-card h4 a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
.about-cert-card:focus-visible, .about-partner-card a:focus-visible { outline: 2px solid #2563eb; outline-offset: 4px; }

.about-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 380px;
  padding: 56px 0;
  background-color: #f0f7ff;
  overflow: hidden;
}

.about-hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
}

.about-hero-copy {
  max-width: 760px;
}

.about-hero-title {
  margin: 0 0 12px;
  font-size: 46px;
  line-height: 1.22;
  font-weight: 600;
  letter-spacing: -0.4px;
  color: #1d273f;
}

.about-hero-desc {
  margin: 0 0 36px;
  font-size: 18px;
  line-height: 1.6;
  color: #4e5969;
  font-weight: 400;
}

.about-hero-metrics {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 24px 0;
}

.about-hero-metric {
  padding: 0 36px;
  border-left: 1px solid rgba(29, 39, 63, 0.14);
}

.about-hero-metric:first-child {
  padding-left: 0;
  border-left: 0;
}

.about-hero-metric-num {
  display: flex;
  align-items: baseline;
  gap: 3px;
  font-size: 32px;
  line-height: 1.2;
  font-weight: 600;
  color: #1d273f;
  font-variant-numeric: tabular-nums;
}

.about-hero-metric-num em {
  font-style: normal;
  font-size: 16px;
  font-weight: 500;
  color: #2563eb;
}

.about-hero-metric-label {
  margin-top: 6px;
  font-size: 14px;
  color: #64748b;
}

.about-profile-sec {
  padding: 88px 0 92px;
  background: linear-gradient(180deg, #f7f9fc 0%, #ffffff 100%);
}

.about-matrix {
  grid-template-columns: 276px minmax(0, 1fr);
  min-height: 440px;
}

.about-matrix-side-info {
  position: relative;
  z-index: 2;
  padding: 6px 26px 0;
}

.about-matrix-side-title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: #1d273f;
}

.about-matrix-side-desc {
  margin: 0 0 22px;
  font-size: 13px;
  line-height: 1.65;
  color: #64748b;
}

.about-matrix-side-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  padding: 18px 0 0;
  border-top: 1px solid #e2ecfa;
  list-style: none;
}

.about-matrix-side-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 500;
  color: #334155;
}

.about-matrix-side-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #2563eb;
  flex-shrink: 0;
}

.about-profile-lead {
  padding-bottom: 34px;
  margin-bottom: 34px;
  border-bottom: 1px solid #f0f4fa;
}

.about-profile-lead h3 {
  margin: 0 0 16px;
  font-size: 22px;
  font-weight: 600;
  color: #1d273f;
  letter-spacing: -0.2px;
}

.about-profile-lead p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: #475569;
}

.about-profile-lead p:last-child {
  margin-bottom: 0;
}

.about-values-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px 40px;
}

.about-value-item {
  padding: 16px 18px;
  margin: -16px -18px;
  border-radius: 10px;
  border: 1px solid transparent;
  transition: background .26s cubic-bezier(.22, 1, .36, 1), border-color .26s ease, box-shadow .26s cubic-bezier(.22, 1, .36, 1), transform .26s cubic-bezier(.22, 1, .36, 1);
}

.about-value-item:hover {
  background: linear-gradient(135deg, #f3f8ff 0%, #ffffff 100%);
  border-color: rgba(37, 99, 235, 0.22);
  box-shadow: 0 12px 26px -10px rgba(23, 58, 138, 0.12);
  transform: translateY(-3px);
}

.about-value-item h4 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  color: #1d273f;
  transition: color .2s ease;
}

.about-value-item:hover h4 {
  color: #2563eb;
}

.about-value-item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: #64748b;
}

.about-why-sec {
  padding: 92px 0;
  background-color: #f4f7fb;
  background-image: url("/web/heiguocloud/assets/img/about/mid-bg.png");
  background-repeat: no-repeat;
  background-position: center top;
  background-size: contain;
}

.about-why-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 20px;
}

.about-why-item {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 296px;
  padding: 32px 26px 36px;
  border-radius: 12px;
  background-color: #ffffff;
  background-repeat: no-repeat;
  background-position: right bottom;
  background-size: 96px 118px;
  border: 1px solid #e5eaf2;
  box-shadow: 0 6px 20px -12px rgba(15, 23, 42, 0.06);
  transition: border-color .26s cubic-bezier(.22, 1, .36, 1), box-shadow .26s cubic-bezier(.22, 1, .36, 1), transform .26s cubic-bezier(.22, 1, .36, 1);
}

.about-why-item:hover {
  border-color: #93c5fd;
  box-shadow: 0 18px 36px -14px rgba(37, 99, 235, 0.16), 0 4px 10px -2px rgba(37, 99, 235, 0.06);
  transform: translateY(-4px);
}

.about-why-item.is-item-1 { background-image: url("/web/heiguocloud/assets/img/about/mid-item-bg-1.png"); }
.about-why-item.is-item-2 { background-image: url("/web/heiguocloud/assets/img/about/mid-item-bg-2.png"); }
.about-why-item.is-item-3 { background-image: url("/web/heiguocloud/assets/img/about/mid-item-bg-3.png"); }
.about-why-item.is-item-4 { background-image: url("/web/heiguocloud/assets/img/about/mid-item-bg-4.png"); }
.about-why-item.is-item-5 { background-image: url("/web/heiguocloud/assets/img/about/mid-item-bg-5.png"); }

.about-why-item::before {
  content: "";
  width: 26px;
  height: 3px;
  border-radius: 2px;
  background: #2563eb;
  margin-bottom: 18px;
  transition: width .24s cubic-bezier(.22, 1, .36, 1);
}

.about-why-item:hover::before {
  width: 42px;
}

.about-why-item h3 {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 600;
  color: #1d273f;
  transition: color .2s ease;
}

.about-why-item:hover h3 {
  color: #2563eb;
}

.about-why-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #5a6679;
}

.about-milestone-sec {
  padding: 96px 0;
  background: linear-gradient(180deg, #ffffff 0%, #f5f9ff 100%);
}

.about-milestone-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.about-milestone-track::before {
  content: "";
  position: absolute;
  top: 52px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.12) 0%, rgba(37, 99, 235, 0.45) 50%, rgba(37, 99, 235, 0.12) 100%);
  z-index: 0;
}

.about-milestone-item {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
}

.about-milestone-year {
  font-size: 26px;
  font-weight: 600;
  line-height: 1.2;
  color: #1d273f;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.4px;
  margin-bottom: 14px;
  transition: color .2s ease;
}

.about-milestone-item:hover .about-milestone-year {
  color: #2563eb;
}

.about-milestone-dot {
  position: relative;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #ffffff;
  border: 2.5px solid #2563eb;
  box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.1);
  margin-bottom: 22px;
  transition: background-color .22s ease, transform .22s ease, box-shadow .22s ease;
}

.about-milestone-item:hover .about-milestone-dot {
  background: #2563eb;
  transform: scale(1.18);
  box-shadow: 0 0 0 7px rgba(37, 99, 235, 0.18);
}

.about-milestone-body {
  flex: 1;
  padding: 20px;
  border-radius: 10px;
  background: #ffffff;
  border: 1px solid #e5eaf2;
  box-shadow: 0 4px 14px -8px rgba(15, 23, 42, 0.05);
  transition: border-color .24s ease, box-shadow .24s ease, transform .24s cubic-bezier(.22, 1, .36, 1);
}

.about-milestone-item:hover .about-milestone-body {
  border-color: #93c5fd;
  box-shadow: 0 14px 28px -12px rgba(37, 99, 235, 0.14);
  transform: translateY(-3px);
}

.about-milestone-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #4e5969;
}

.about-cert-card.is-clickable {
  cursor: pointer;
}

.about-partner-sec {
  padding: 88px 0;
  background: #ffffff;
}

.about-partner-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.about-partner-card {
  display: flex;
  flex-direction: column;
  padding: 32px;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid #e5eaf2;
  box-shadow: 0 4px 16px -8px rgba(15, 23, 42, 0.06);
  transition: border-color .24s ease, box-shadow .24s ease, transform .24s cubic-bezier(.22, 1, .36, 1);
}

.about-partner-card:hover {
  border-color: #93c5fd;
  box-shadow: 0 16px 34px -14px rgba(37, 99, 235, 0.14);
  transform: translateY(-3px);
}

.about-partner-logo {
  height: 44px;
  max-width: 160px;
  object-fit: contain;
  align-self: flex-start;
  margin-bottom: 20px;
}

.about-partner-card h4 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 600;
  color: #1d273f;
}

.about-partner-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: #5a6679;
}

#about-honors .qc-cert-grid:has(> :nth-child(4):last-child) {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

@media (max-width: 1280px) {
  .about-why-item {
    padding: 26px 20px 30px;
  }
}

@media (max-width: 1200px) {
  .about-hero {
    min-height: 330px;
    padding: 48px 0;
  }

  .about-hero-title {
    font-size: 38px;
  }

  .about-hero-desc {
    font-size: 16px;
    margin-bottom: 28px;
  }

  .about-hero-metric {
    padding: 0 28px;
  }

  .about-hero-metric-num {
    font-size: 28px;
  }

  .about-why-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .about-milestone-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    row-gap: 28px;
  }

  .about-milestone-track::before {
    display: none;
  }
}

@media (max-width: 1080px) {
  .about-page-body .about-matrix,
  .about-matrix {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
  }

  .about-matrix .qc-qn-sidebar {
    padding: 22px 24px;
  }

  .about-matrix-side-info {
    padding: 0;
  }

  .about-matrix-side-desc {
    margin-bottom: 14px;
  }

  .about-matrix-side-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 20px;
    padding-top: 14px;
  }

  .about-values-row {
    gap: 16px;
  }

  .about-value-item {
    margin: 0;
    padding: 16px;
    background: linear-gradient(180deg, #f6f9ff 0%, #ffffff 100%);
    border-color: #e2ecfb;
    border-radius: 10px;
  }
}

@media (max-width: 960px) {
  .about-hero {
    min-height: 260px;
    padding: 36px 0;
  }

  .about-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(90deg, rgba(240, 247, 255, 0.90) 0%, rgba(240, 247, 255, 0.72) 58%, rgba(240, 247, 255, 0.45) 100%);
    pointer-events: none;
  }

  .about-hero-title {
    font-size: 30px;
    margin-bottom: 8px;
  }

  .about-hero-desc {
    font-size: 15px;
    margin-bottom: 20px;
  }

  .about-hero-metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }

  .about-page-body .about-hero-metric,
  .about-hero-metric {
    padding: 12px 14px;
    border-left: 0;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 4px 14px -6px rgba(15, 23, 42, 0.06);
  }

  .about-hero-metric-num {
    font-size: 22px;
  }

  .about-hero-metric-num em {
    font-size: 13px;
  }

  .about-hero-metric-label {
    margin-top: 4px;
    font-size: 12px;
  }

  .about-profile-sec,
  .about-why-sec,
  .about-milestone-sec,
  .about-partner-sec {
    padding: 52px 0;
  }

  .about-profile-lead {
    padding-bottom: 22px;
    margin-bottom: 22px;
  }

  .about-profile-lead h3 {
    font-size: 20px;
    margin-bottom: 12px;
  }

  .about-profile-lead p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 12px;
  }

  .about-why-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .about-why-grid > .about-why-item:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }

  .about-why-item {
    min-height: 0;
    padding: 22px 20px;
  }

  .about-why-item::before {
    margin-bottom: 14px;
  }

  .about-why-item h3 {
    font-size: 18px;
    margin-bottom: 10px;
  }

  .about-why-item p {
    font-size: 13.5px;
    line-height: 1.7;
  }

  #about-honors .qc-cert-grid:has(> :nth-child(4):last-child) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .about-partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .about-partner-card {
    padding: 22px 20px;
  }

  .about-partner-logo {
    height: 38px;
    margin-bottom: 14px;
  }

  .about-partner-card h4 {
    font-size: 16.5px;
    margin-bottom: 8px;
  }

  .about-partner-card p {
    font-size: 13.5px;
    line-height: 1.68;
  }
}

@media (max-width: 767px) {
  .about-hero {
    min-height: 0;
    padding: 28px 0 32px;
  }

  .about-hero::before {
    background: linear-gradient(180deg, rgba(240, 247, 255, 0.72) 0%, rgba(240, 247, 255, 0.88) 65%, rgba(240, 247, 255, 0.96) 100%);
  }

  .about-hero-title {
    font-size: 25px;
  }

  .about-hero-desc {
    font-size: 14px;
    margin-bottom: 16px;
  }

  .about-hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .about-page-body .about-hero-metric,
  .about-hero-metric {
    padding: 10px 12px;
  }

  .about-hero-metric-num {
    font-size: 20px;
  }

  .about-profile-sec,
  .about-why-sec,
  .about-milestone-sec,
  .about-partner-sec {
    padding: 44px 0;
  }

  .about-matrix .qc-qn-sidebar {
    padding: 16px;
  }

  .about-matrix-side-title {
    font-size: 16px;
    margin-bottom: 6px;
  }

  .about-matrix-side-desc {
    font-size: 12.5px;
    margin-bottom: 12px;
  }

  .about-matrix-side-list {
    grid-template-columns: 1fr;
    gap: 8px;
    padding-top: 12px;
  }

  .about-matrix-side-list li {
    font-size: 13px;
  }

  .about-matrix .qc-qn-panels {
    padding: 18px 16px 20px;
  }

  .about-profile-lead {
    padding-bottom: 18px;
    margin-bottom: 18px;
  }

  .about-profile-lead h3 {
    font-size: 18px;
    margin-bottom: 10px;
  }

  .about-profile-lead p {
    font-size: 13.5px;
    line-height: 1.72;
    margin-bottom: 10px;
  }

  .about-values-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .about-value-item {
    padding: 14px 16px;
  }

  .about-value-item h4 {
    font-size: 15.5px;
    margin-bottom: 6px;
  }

  .about-value-item p {
    font-size: 13px;
    line-height: 1.62;
  }

  .about-why-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .about-why-item {
    padding: 18px 16px;
  }

  .about-why-image {
    width: 72px;
    height: 88px;
    opacity: 0.72;
  }

  .about-milestone-track {
    grid-template-columns: 1fr;
    row-gap: 14px;
    margin-top: 8px;
    padding-left: 22px;
  }

  .about-milestone-track::before {
    display: block;
    top: 8px;
    bottom: 8px;
    left: 5px;
    right: auto;
    width: 2px;
    height: auto;
    background: linear-gradient(180deg, #2563eb 0%, #60a5fa 68%, rgba(96, 165, 250, 0.15) 100%);
  }

  .about-milestone-year {
    font-size: 18px;
    margin-bottom: 6px;
    color: #2563eb;
  }

  .about-milestone-dot {
    display: block;
    position: absolute;
    left: -22px;
    top: 4px;
    width: 12px;
    height: 12px;
    margin-bottom: 0;
  }

  .about-milestone-body {
    padding: 14px 16px;
  }

  .about-milestone-body p {
    font-size: 13.5px;
    line-height: 1.65;
  }

  #about-honors .qc-cert-grid,
  #about-honors .qc-cert-grid:has(> :nth-child(4):last-child) {
    grid-template-columns: 1fr;
    gap: 16px;
    max-width: 400px;
  }

  .about-partner-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .about-partner-card {
    padding: 18px 16px;
  }
}