/* 第五模块：多维安全防御模型 */
#security-6.security-6-section {
  position: relative;
  overflow: hidden;
  background: linear-gradient(90deg, #2c325a 0%, #5c4f72 45%, #9a7fa8 75%, #d9a7c7 100%);
  color: #fff;
  padding: 4.5rem 0;
}

#security-6 .security-6-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 2.75rem;
}

#security-6 .security-6-header h2 {
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

#security-6 .security-6-header h2 i {
  color: #ffc107;
  font-size: 0.95em;
}

#security-6 .security-6-header p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.95rem;
  line-height: 1.75;
  margin: 0;
}

#security-6 .security-6-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

#security-6 .sec6-card {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  padding: 2rem 1.5rem 1.75rem;
  text-align: center;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
  transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
  height: 100%;
}

#security-6 .sec6-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.16);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.22);
}

#security-6 .sec6-icon {
  font-size: 2rem;
  color: #fff;
  margin-bottom: 1rem;
  line-height: 1;
}

#security-6 .sec6-card h5 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.85rem;
}

#security-6 .sec6-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

#security-6 .sec6-tag {
  display: inline-block;
  padding: 0.35em 0.85em;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.2;
}

#security-6 .sec6-tag--green { background: #28a745; }
#security-6 .sec6-tag--gray { background: #5a6268; }
#security-6 .sec6-tag--blue { background: #0d6efd; }
#security-6 .sec6-tag--cyan { background: #17a2b8; }
#security-6 .sec6-tag--red { background: #dc3545; }
#security-6 .sec6-tag--orange { background: #fd7e14; }

#security-6 .sec6-card p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.7;
  margin: 0;
}

@media (max-width: 991.98px) {
  #security-6 .security-6-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }
}

@media (max-width: 575.98px) {
  #security-6.security-6-section {
    padding: 3rem 0;
  }
}