/* 基本样式 */
  body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #f5deb3, #87ceeb);
    color: #333;
    line-height: 1.6;
    padding: 20px;
  }

  h1, h2, h3, h4 {
    font-family: 'Pacifico', cursive;
    color: #ff9900;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
  }

  p {
    margin-bottom: 1em;
  }

  pre {
    background: #f0f0f0;
    padding: 1em;
    border-radius: 8px;
    overflow: auto;
  }

  code {
    font-family: 'Courier New', Courier, monospace;
    color: #c7254e;
  }

  table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1em;
  }

  table, th, td {
    border: 1px solid #ccc;
  }

  th, td {
    padding: 0.5em;
    text-align: left;
  }

  /* 布局 */
  .container {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 2rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  }

  .container > div {
    background-color: #ffffff;
    border-radius: 8px;
    padding: 1.5rem;
  }

  /* 图片样式 */
  img {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: 8px;
  }

  /* 按钮样式 */
  .button {
    position: relative;
    padding: 1rem 2rem;
    background-color: #ffcc00;
    color: #333;
    border: none;
    border-radius: 50px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
  }

  .button:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  }

  /* SVG 图标样式 */
  svg.icon {
    width: 32px;
    height: 32px;
    fill: #66cc66;
    transition: transform 0.3s ease;
  }

  svg.icon:hover {
    transform: rotate(360deg);
  }

  /* 表格样式 */
  table {
    width: 100%;
    border-collapse: collapse;
  }

  th, td {
    padding: 0.75rem;
    border: 1px solid #ddd;
  }

  th {
    background-color: #f9f9f9;
  }

  /* 响应式设计 */
  @media (max-width: 1440px) {
    .container {
      grid-template-columns: 1fr 2fr 1fr;
    }
  }

  @media (max-width: 1200px) {
    .container {
      grid-template-columns: 1fr 2fr 1fr;
    }
  }

  @media (max-width: 1024px) {
    .container {
      grid-template-columns: 1fr 2fr;
    }
  }

  @media (max-width: 768px) {
    .container {
      grid-template-columns: 1fr;
      padding: 1rem;
    }

    h1 {
      font-size: 2rem;
    }

    h2 {
      font-size: 1.75rem;
    }

    h3 {
      font-size: 1.5rem;
    }
  }

  @media (max-width: 480px) {
    body {
      padding: 10px;
    }

    .button {
      padding: 0.75rem 1.5rem;
    }
  }

  @media (max-width: 320px) {
    h1 {
      font-size: 1.5rem;
    }

    h2 {
      font-size: 1.25rem;
    }

    h3 {
      font-size: 1rem;
    }
  }

  /* 动画与特效 */
  @keyframes aurora-move {
    0% {
      background: radial-gradient(circle, rgb(255, 87, 34), transparent);
    }
    50% {
      background: radial-gradient(circle, rgb(34, 193, 195), transparent);
    }
    100% {
      background: radial-gradient(circle, rgb(255, 87, 34), transparent);
    }
  }

  .animated-background {
    animation: aurora-move 15s linear infinite;
  }

  /* 提示文字 */
  .reference-note {
    font-size: 0.9rem;
    color: #666;
    text-align: center;
    margin-top: 2rem;
  }

  /* 链接样式 */
  a {
    color: #ff9900;
    text-decoration: none;
    position: relative;
  }

  a::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: #ff9900;
    transition: width .3s;
  }

  a:hover::after {
    width: 100%;
  }