/* 重置默认样式 */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  /* 设置主体背景为渐变色 */
  body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    color: #ffffff;
    line-height: 1.6;
    padding: 20px;
  }

  /* 标题样式 */
  h1, h2, h3, h4 {
    font-family: 'Roboto', sans-serif;
    color: #00ff99;
    margin-bottom: 15px;
    text-transform: uppercase;
  }

  h1 {
    font-size: 3rem;
    animation: fadeIn 2s ease-in-out;
  }

  h2 {
    font-size: 2.5rem;
    margin-top: 30px;
  }

  h3 {
    font-size: 2rem;
    margin-top: 20px;
  }

  h4 {
    font-size: 1.5rem;
    margin-top: 15px;
  }

  /* 段落样式 */
  p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #f0f0f0;
  }

  /* 代码块样式 */
  pre {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 20px;
  }

  code {
    font-family: 'Courier New', Courier, monospace;
    color: #00ff99;
  }

  /* 表格样式 */
  table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
  }

  th, td {
    border: 1px solid #00ff99;
    padding: 10px;
    text-align: left;
  }

  th {
    background: rgba(0, 255, 153, 0.2);
  }

  /* 按钮样式 */
  .button {
    background-color: #00ff99;
    border: none;
    color: #24243e;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 1rem;
    margin: 10px 2px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 5px;
  }

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

  /* 图片样式 */
  .images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
  }

  .images-grid img {
    width: 100%;
    height: auto;
    border-radius: 10px;
  }

  /* 动画关键帧 */
  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  /* 响应式设计 */
  @media (max-width: 320px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }
    p, code { font-size: 1rem; }
  }

  @media (max-width: 480px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.7rem; }
    p, code { font-size: 1.05rem; }
  }

  @media (max-width: 768px) {
    body {
      padding: 15px;
    }
    h1 { font-size: 2.8rem; }
    h2 { font-size: 2.3rem; }
    h3 { font-size: 1.8rem; }
  }

  @media (max-width: 1024px) {
    h1 { font-size: 3rem; }
    h2 { font-size: 2.5rem; }
    h3 { font-size: 2rem; }
  }

  @media (max-width: 1200px) {
    h1 { font-size: 3.2rem; }
    h2 { font-size: 2.7rem; }
    h3 { font-size: 2.2rem; }
  }

  @media (min-width: 1440px) {
    body {
      padding: 40px;
    }
    h1 { font-size: 4rem; }
    h2 { font-size: 3.5rem; }
    h3 { font-size: 2.5rem; }
  }