/* 全局样式 */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: #ffffff;
    line-height: 1.6;
    padding: 20px;
    animation: aurora-move 15s linear infinite;
  }

  @keyframes aurora-move {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }

  h1, h2, h3, h4 {
    font-family: 'Roboto', sans-serif;
    color: #ffcc00;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
  }

  h2 {
    font-size: 2em;
  }

  h3 {
    font-size: 1.5em;
    color: #ffffff;
  }

  h4 {
    font-size: 1.2em;
    color: #ffcc00;
  }

  p {
    margin-bottom: 15px;
    font-size: 1em;
    color: #dddddd;
  }

  ul {
    list-style-type: disc;
    margin-left: 20px;
    margin-bottom: 15px;
  }

  li {
    margin-bottom: 10px;
  }

  pre {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 15px;
  }

  code {
    font-family: 'Courier New', Courier, monospace;
    color: #ffcc00;
    background: rgba(0, 0, 0, 0.5);
    padding: 2px 4px;
    border-radius: 3px;
  }

  /* 布局样式 */
  .container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
  }

  .left-column, .right-column {
    background: rgba(0, 0, 0, 0.3);
    padding: 20px;
    border-radius: 10px;
  }

  /* 卡片设计 */
  .card {
    background: linear-gradient(135deg, #ff7e5f, #feb47b);
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    padding: 20px;
    margin-bottom: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .card:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0,0,0,0.5);
  }

  .card-title {
    font-size: 1.5em;
    color: #ffffff;
    margin-bottom: 10px;
  }

  /* 按钮样式 */
  .button {
    background-color: #ffcc00;
    color: #0f2027;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1em;
  }

  .button:hover {
    background-color: #ffffff;
    color: #ffcc00;
    transform: scale(1.1);
  }

  /* 图像样式 */
  .image-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
  }

  .image-grid img {
    width: 100%;
    max-width: 150px;
    border-radius: 5px;
    object-fit: cover;
  }

  /* 动态效果 */
  .parallax {
    background-image: url('https://images.gptkong.com/demo/sample1.png');
    height: 500px;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    border-radius: 10px;
    margin-bottom: 20px;
  }

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

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

  @media (max-width: 1024px) {
    .image-grid {
      justify-content: center;
    }
  }

  @media (max-width: 768px) {
    .container {
      grid-template-columns: 1fr;
    }
    h1 {
      font-size: 1.8em;
    }
    h2 {
      font-size: 1.6em;
    }
    .card {
      padding: 15px;
    }
  }

  @media (max-width: 480px) {
    body {
      padding: 10px;
    }
    h1 {
      font-size: 1.5em;
    }
    h2 {
      font-size: 1.4em;
    }
    .card {
      padding: 10px;
    }
    .image-grid img {
      max-width: 100px;
    }
  }

  @media (max-width: 320px) {
    h1 {
      font-size: 1.2em;
    }
    h2 {
      font-size: 1.2em;
    }
    .button {
      padding: 8px 16px;
      font-size: 0.9em;
    }
  }

  /* 提示 */
  .reference {
    text-align: center;
    margin: 20px 0;
    font-style: italic;
    color: #ffcc00;
  }