/* 基础样式重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body, html {
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(135deg, #0074D9, #FF4136);
  background-size: 200% 200%;
  animation: gradient-animation 10s infinite;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
@keyframes gradient-animation {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* 全局容器布局 */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 20px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 20px;
}

/* 头部设计 */
header {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
header h1 {
  font-size: 2rem;
  color: #fff;
  margin-bottom: 10px;
}
header p {
  font-size: 1rem;
  color: #f0f0f0;
}

/* 主体内容 */
main {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  padding: 20px 0;
}
section {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}
section:hover {
  transform: translateY(-5px);
}
section h2 {
  font-size: 1.5rem;
  color: #fff;
  margin-bottom: 10px;
}
section p {
  font-size: 1rem;
  color: #f0f0f0;
  margin-bottom: 10px;
}
section img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 10px;
}

/* 示例文章排版 */
article {
  background: rgba(255, 255, 255, 0.9);
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
article h2 {
  font-size: 2rem;
  color: #0074D9;
  margin-bottom: 20px;
}
article h3 {
  font-size: 1.5rem;
  color: #333;
  margin-top: 20px;
  margin-bottom: 10px;
}
article p {
  font-size: 1rem;
  color: #555;
  margin-bottom: 10px;
}
article pre {
  background: #f0f0f0;
  padding: 10px;
  border-radius: 8px;
  overflow-x: auto;
}
article code {
  color: #0074D9;
  font-size: 0.9rem;
}
article table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}
article th, article td {
  border: 1px solid #ddd;
  padding: 10px;
  text-align: left;
}
article th {
  background: #0074D9;
  color: #fff;
}

/* 底部设计 */
footer {
  text-align: center;
  padding: 20px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
footer p {
  font-size: 1rem;
  color: #f0f0f0;
}

/* 响应式适配 */
@media (max-width: 768px) {
  main {
    grid-template-columns: 1fr;
  }
  header h1 {
    font-size: 1.5rem;
  }
  section h2 {
    font-size: 1.2rem;
  }
}
@media (max-width: 480px) {
  .container {
    padding: 10px;
  }
  header, footer {
    padding: 10px;
  }
}