/* 基础样式与全局设置 */
body {
  margin: 0;
  font-family: 'Open Sans', sans-serif;
  background: linear-gradient(135deg, #0A192F, #6C5CE7);
  color: #BDCDD6;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: 'Roboto Slab', serif;
  font-weight: 700;
  color: #FF6F61;
}

p, li {
  font-size: 1rem;
  color: #EAEAEA;
}

a {
  color: #38E54D;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #FF6F61;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.card {
  flex: 1 1 calc(33.33% - 20px);
  background: rgba(30, 39, 46, 0.8);
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
}

button {
  background-color: #6C5CE7;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

button:hover {
  transform: scale(1.1);
  background-color: #FF6F61;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

@media (max-width: 768px) {
  .card {
    flex: 1 1 100%;
  }
}

.code-block {
  background: rgba(0, 0, 0, 0.7);
  padding: 15px;
  border-radius: 5px;
  overflow-x: auto;
  font-family: 'Courier New', monospace;
  color: #FFD700;
  margin: 10px 0;
}

code {
  color: #FFD700;
}

.header {
  text-align: center;
  padding: 40px 20px;
  background: linear-gradient(135deg, #6C5CE7, #38E54D);
  color: white;
}

.footer {
  text-align: center;
  padding: 20px;
  background: #0A192F;
  color: #BDCDD6;
  font-size: 0.9rem;
}