/* 全局样式 */
body {
  margin: 0;
  font-family: 'Open Sans', sans-serif;
  line-height: 1.6;
  color: #fff;
  background: linear-gradient(135deg, #4A90E2, #5B247A);
  background-attachment: fixed;
  padding: 20px;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Roboto Mono', monospace;
  font-weight: bold;
  margin-top: 30px;
  margin-bottom: 15px;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }

p, ul, ol {
  font-size: 1rem;
  margin-bottom: 20px;
  line-height: 1.8;
}

ul, ol {
  padding-left: 20px;
}

a {
  color: #FF6F61;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #FF8C00;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.card {
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 12px rgba(0, 0, 0, 0.2);
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  display: block;
  margin: 20px 0;
}

button {
  background-color: #FF6F61;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

button:hover {
  transform: scale(1.1);
  background-color: #FF8C00;
}

code {
  background-color: rgba(0, 0, 0, 0.6);
  color: #39FF14;
  padding: 5px 10px;
  border-radius: 5px;
  font-family: 'Fira Code', monospace;
  font-size: 0.9rem;
  display: block;
  margin: 10px 0;
}

pre {
  background-color: rgba(0, 0, 0, 0.8);
  padding: 15px;
  border-radius: 10px;
  overflow-x: auto;
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
  .container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  body { padding: 10px; }
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
}