/* 基础样式 */
  body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: #ffffff;
    overflow-x: hidden;
  }

  /* 导航栏样式 */
  nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
  }

  nav .logo {
    font-size: 24px;
    font-weight: bold;
    text-shadow: 0 0 10px #ff8c00, 0 0 20px #ff8c00;
  }

  nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
  }

  nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 18px;
    transition: color 0.3s;
  }

  nav ul li a:hover {
    color: #ff8c00;
  }

  /* 主页横幅 */
  .hero {
    height: 100vh;
    background: url('https://images.gptkong.com/demo/sample1.png') center center/cover no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
  }

  .hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(32, 58, 67, 0.7);
  }

  .hero-content {
    position: relative;
    text-align: center;
    z-index: 1;
  }

  .hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 0 0 10px #ff8c00, 0 0 20px #ff8c00;
  }

  .hero-content p {
    font-size: 20px;
    max-width: 600px;
    margin: 0 auto 30px;
  }

  .hero-content a {
    padding: 10px 20px;
    background: #ff8c00;
    color: #ffffff;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
  }

  .hero-content a:hover {
    background: #ffa500;
  }

  /* 内容区 */
  .container {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
  }

  .grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
  }

  .grid-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.3);
    transition: transform 0.3s, box-shadow 0.3s;
  }

  .grid-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 16px 32px rgba(0,0,0,0.5);
  }

  .grid-item img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 15px;
  }

  .grid-item h3 {
    margin-bottom: 10px;
    font-size: 22px;
    text-shadow: 0 0 5px #ff8c00;
  }

  .grid-item p {
    font-size: 16px;
    line-height: 1.6;
  }

  /* 示例文章区 */
  .article-section {
    margin-top: 60px;
    padding: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  }

  .article-section h2 {
    font-size: 28px;
    margin-bottom: 20px;
    text-shadow: 0 0 5px #ff8c00;
  }

  .article-section h3 {
    font-size: 22px;
    margin-top: 30px;
    margin-bottom: 15px;
    text-shadow: 0 0 3px #ff8c00;
  }

  .article-section p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 15px;
  }

  .article-section pre {
    background: rgba(0,0,0,0.7);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 15px;
  }

  .article-section code {
    color: #00ffea;
    font-family: 'Courier New', Courier, monospace;
  }

  /* 底部样式 */
  footer {
    padding: 20px;
    text-align: center;
    background: rgba(0, 0, 0, 0.6);
    color: #ffffff;
  }

  /* 响应式设计 */
  @media (max-width: 768px) {
    .hero-content h1 {
      font-size: 36px;
    }

    .hero-content p {
      font-size: 18px;
    }

    nav ul {
      flex-direction: column;
      gap: 10px;
    }

    .grid-container {
      grid-template-columns: 1fr;
    }
  }

  @media (max-width: 480px) {
    .hero-content h1 {
      font-size: 28px;
    }

    .hero-content p {
      font-size: 16px;
    }

    nav {
      padding: 10px 20px;
    }

    .grid-item h3 {
      font-size: 20px;
    }

    .grid-item p {
      font-size: 14px;
    }
  }

  /* 动画效果 */
  .particle {
    position: absolute;
    width: 5px;
    height: 5px;
    background: #ffffff;
    border-radius: 50%;
    animation: particle-animation 3s infinite;
  }

  @keyframes particle-animation {
    0% {
      transform: translate(-50%, -50%) scale(0);
      opacity: 0;
    }
    50% {
      opacity: 1;
    }
    100% {
      transform: translate(-50%, -50%) scale(1);
      opacity: 0;
    }
  }

  /* 代码块样式 */
  pre code {
    display: block;
    padding: 10px;
    background: #1e1e1e;
    color: #dcdcdc;
    border-radius: 5px;
    overflow-x: auto;
  }