.platform-navbar {
  background: rgba(11, 29, 46, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.platform-brand {
  gap: 0.6rem;
}

.platform-logo {
  width: 34px;
  height: 34px;
}

.platform-brand-text {
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #ffffff;
}

.platform-navbar .navbar-item,
.platform-navbar .navbar-link {
  color: rgba(255, 255, 255, 0.92);
}

.platform-navbar .navbar-item:hover,
.platform-navbar .navbar-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

.platform-navbar .navbar-burger span {
  background: rgba(255, 255, 255, 0.9);
}

.platform-hero {
  background: radial-gradient(1200px 600px at 50% 0%, rgba(13, 59, 102, 0.65), rgba(11, 29, 46, 1));
  color: #ffffff;
  padding-top: 1.0rem;
}

.platform-title {
  color: #ffffff;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.platform-subtitle {
  color: rgba(255, 255, 255, 0.88);
  max-width: 56rem;
  margin: 0 auto;
}

.platform-cta-row {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.platform-note {
  margin-top: 0.9rem;
  color: rgba(255, 255, 255, 0.82);
}

.platform-section {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.platform-section-alt {
  background: linear-gradient(180deg, rgba(13, 59, 102, 0.08), rgba(13, 59, 102, 0));
}

.platform-lead {
  color: rgba(5, 24, 38, 0.85);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 58rem;
}

.platform-card {
  border-radius: 16px;
  border: 1px solid rgba(13, 59, 102, 0.12);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
  padding: 1.25rem 1.25rem 1.1rem;
  height: 100%;
}

.platform-card .title {
  margin-bottom: 0.6rem;
}

.platform-card p {
  color: rgba(5, 24, 38, 0.86);
}

.platform-links {
  margin-top: 0.4rem;
  font-weight: 600;
}

.platform-links a {
  color: #0d3b66;
}

.platform-links .dot {
  margin: 0 0.35rem;
  color: rgba(5, 24, 38, 0.45);
}

.platform-pre {
  margin-top: 0.8rem;
  border-radius: 14px;
  background: #0b1d2e;
  color: #eaf3ff;
  padding: 0.95rem 1.0rem;
  font-size: 0.86rem;
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.platform-pre code {
  color: inherit;
}

.platform-footnote {
  margin-top: 0.7rem;
  color: rgba(5, 24, 38, 0.68);
  font-size: 0.92rem;
}

.platform-callout {
  margin-top: 1.2rem;
  border-left: 4px solid rgba(13, 59, 102, 0.75);
  background: rgba(13, 59, 102, 0.06);
  padding: 0.9rem 1.0rem;
  border-radius: 12px;
}

.platform-callout p {
  margin: 0;
  color: rgba(5, 24, 38, 0.84);
}

.platform-diagram {
  margin-top: 1.2rem;
  margin-bottom: 1.3rem;
  display: grid;
  grid-template-columns: 1fr 1.1fr 1fr;
  gap: 1.0rem;
  align-items: stretch;
}

.platform-diagram-col {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  justify-content: center;
}

.platform-diagram-mid {
  justify-content: flex-start;
}

.platform-diagram-box {
  border-radius: 16px;
  padding: 0.9rem 1.0rem;
  border: 1px solid rgba(13, 59, 102, 0.14);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.05);
}

.platform-diagram-box-strong {
  border-color: rgba(13, 59, 102, 0.3);
  background: rgba(13, 59, 102, 0.06);
}

.platform-diagram-title {
  font-weight: 800;
  color: rgba(5, 24, 38, 0.92);
  display: flex;
  gap: 0.55rem;
  align-items: center;
}

.platform-diagram-sub {
  margin-top: 0.3rem;
  color: rgba(5, 24, 38, 0.72);
  font-size: 0.92rem;
}

.platform-diagram-arrow {
  color: rgba(13, 59, 102, 0.55);
  font-size: 1.4rem;
  font-weight: 800;
  text-align: center;
}

.platform-mini-grid {
  margin-top: 0.9rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.55rem;
}

.platform-mini {
  display: flex;
  gap: 0.8rem;
  align-items: baseline;
}

.platform-mini-k {
  min-width: 4.2rem;
  font-weight: 900;
  color: #0d3b66;
}

.platform-mini-v {
  color: rgba(5, 24, 38, 0.78);
}

.platform-ul {
  margin-left: 1.1rem;
  color: rgba(5, 24, 38, 0.85);
}

.platform-footer {
  margin-top: 1.1rem;
  display: flex;
  justify-content: flex-start;
}

@media (max-width: 1024px) {
  .platform-diagram {
    grid-template-columns: 1fr;
  }
  .platform-diagram-arrow {
    display: none;
  }
}