/* ============================================================
   解决方案与服务网络页面样式
   ============================================================ */

.solution-intro {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-xl);
  align-items: center;
}

.solution-intro p {
  color: var(--color-gray);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-xl);
}

.solution-card {
  position: relative;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 92, 175, 0.1);
  box-shadow: 0 18px 38px rgba(9, 29, 61, 0.12);
  overflow: hidden;
}

.solution-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 15% 20%, rgba(77, 208, 225, 0.15), transparent 60%),
              radial-gradient(circle at 80% 30%, rgba(255, 152, 0, 0.12), transparent 55%);
  opacity: 0.9;
  pointer-events: none;
}

.solution-card h3 {
  position: relative;
  z-index: 1;
  color: var(--color-primary);
  margin-bottom: var(--spacing-base);
}

.solution-card p,
.solution-card ul {
  position: relative;
  z-index: 1;
}

.solution-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.solution-card li {
  margin-bottom: var(--spacing-sm);
  padding-left: 1.4rem;
  position: relative;
  color: var(--color-dark-text);
}

.solution-card li::before {
  content: '▪';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-secondary);
}

.lifecycle-flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-xl);
}

.lifecycle-stage {
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  background: linear-gradient(135deg, rgba(0, 92, 175, 0.1), rgba(77, 208, 225, 0.16));
  border: 1px solid rgba(0, 92, 175, 0.12);
  box-shadow: 0 18px 38px rgba(9, 29, 61, 0.12);
}

.lifecycle-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--border-radius-full);
  background: rgba(255, 152, 0, 0.18);
  color: var(--color-secondary);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-xl);
}

.case-card {
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  background: rgba(9, 29, 61, 0.92);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
  box-shadow: 0 28px 60px rgba(2, 18, 48, 0.35);
}

.case-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 10%, rgba(255, 152, 0, 0.25), transparent 60%);
  pointer-events: none;
}

.case-card h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-base);
}

.case-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  color: rgba(255, 255, 255, 0.85);
}

.case-card li {
  margin-bottom: var(--spacing-sm);
  padding-left: 1.4rem;
  position: relative;
}

.case-card li::before {
  content: '✧';
  position: absolute;
  left: 0;
  top: 0;
  color: rgba(255, 255, 255, 0.8);
}

.network-coverage {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
}

.coverage-card {
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 92, 175, 0.1);
  box-shadow: 0 18px 38px rgba(9, 29, 61, 0.1);
}

.coverage-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-base);
}

.coverage-card p {
  color: var(--color-gray);
  margin-bottom: var(--spacing-base);
}

.coverage-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.coverage-card li {
  margin-bottom: var(--spacing-sm);
  padding-left: 1.4rem;
  position: relative;
}

.coverage-card li::before {
  content: '•';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-secondary);
}

.network-map {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 28px 60px rgba(9, 29, 61, 0.18);
  border: 1px solid rgba(0, 92, 175, 0.12);
}

.network-map img {
  width: 100%;
  display: block;
  object-fit: cover;
}

.sla-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
}

.sla-card {
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  background: linear-gradient(135deg, rgba(0, 92, 175, 0.1), rgba(77, 208, 225, 0.18));
  border: 1px solid rgba(0, 92, 175, 0.12);
  text-align: center;
  box-shadow: 0 18px 38px rgba(9, 29, 61, 0.12);
}

.sla-card h3 {
  font-size: var(--font-size-3xl);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
}

.sla-card p {
  color: var(--color-gray);
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .solution-intro {
    grid-template-columns: 1fr;
  }
}