/* 安全页样式 */
.security-hero {
  padding: 60px 0 40px;
  text-align: center;
}

.security-hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 900;
  color: var(--purple);
  margin-bottom: 16px;
}

.security-shield {
  width: 100px;
  height: 100px;
  margin: 0 auto 24px;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  padding: 40px 0 60px;
}

.security-card {
  background: var(--white);
  border-radius: 24px;
  padding: 36px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--purple);
}

.security-card h3 {
  color: var(--purple);
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.security-card p {
  color: var(--gray);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.tips-section {
  background: var(--teal);
  color: var(--white);
  border-radius: 32px;
  padding: 48px;
  margin-bottom: 60px;
}

.tips-section h2 {
  font-size: 1.75rem;
  margin-bottom: 24px;
}

.tips-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.tips-list li {
  padding: 16px 20px;
  background: rgba(255,255,255,0.1);
  border-radius: 12px;
  font-size: 0.9375rem;
}

.tips-list li::before {
  content: "✓ ";
  color: var(--green);
  font-weight: 700;
}

@media (max-width: 768px) {
  .security-grid,
  .tips-list { grid-template-columns: 1fr; }
}