/* 全局样式 */
body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  background: linear-gradient(to bottom right, #1e3c72, #2a5298);
  color: #fff;
  padding: 20px;
}

h1, h2, h3 {
  font-weight: bold;
  color: #00ffff;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
p { font-size: 1rem; }

code {
  background: rgba(0, 0, 0, 0.3);
  padding: 4px 8px;
  border-radius: 5px;
  color: #00ff00;
  display: block;
  white-space: pre-wrap;
  overflow-x: auto;
}

pre {
  background: rgba(0, 0, 0, 0.4);
  padding: 15px;
  border-radius: 10px;
  margin: 20px 0;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.glass-effect {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  margin-bottom: 20px;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.module {
  background: rgba(255, 255, 255, 0.1);
  padding: 20px;
  border-radius: 10px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.module:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.5);
  padding: 10px;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-item {
  margin: 0 15px;
  color: #00ffff;
  text-decoration: none;
  font-size: 1rem;
  transition: color 0.3s ease;
}

.nav-item:hover {
  color: #00ff00;
}

.button {
  background-color: #007bff;
  color: white;
  padding: 10px 20px;
  border-radius: 5px;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  margin-top: 10px;
}

.button:hover {
  transform: scale(1.1);
  background-color: #0056b3;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin: 20px 0;
}

.image-grid img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
}

@media (max-width: 768px) {
  .grid-container {
    grid-template-columns: 1fr;
  }
  
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
  p { font-size: 0.9rem; }
}

@media (min-width: 1024px) {
  .glass-effect {
    padding: 30px;
  }
}