:root {
    --primary-color: #A0D8EF;
    --secondary-color: #F0F4F8;
    --accent-color: #FF6F61;
    --text-color: #333;
    --background-color: rgba(160, 216, 239, 0.8);
    --card-bg: rgba(255, 255, 255, 0.6);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --border-radius: 15px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  }

  @media (prefers-color-scheme: dark) {
    :root {
      --primary-color: #333;
      --secondary-color: #1e1e1e;
      --accent-color: #FF6F61;
      --text-color: #f0f0f0;
      --background-color: rgba(0, 0, 0, 0.7);
      --card-bg: rgba(30, 30, 30, 0.6);
    }
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--background-color);
    transition: var(--transition);
    overflow-x: hidden;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }

  .hero {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
    margin-bottom: 60px;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(160, 216, 239, 0.8), rgba(240, 244, 248, 0.8));
    backdrop-filter: blur(5px);
    z-index: -1;
  }

  .hero-content {
    max-width: 800px;
    position: relative;
    z-index: 1;
  }

  .hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--text-color);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  }

  .hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--text-color);
  }

  .notice {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    box-shadow: var(--shadow);
    z-index: 1000;
  }

  .navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(160, 216, 239, 0.7);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    backdrop-filter: blur(5px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  }

  .navbar .logo {
    font-family: 'Helvetica', sans-serif;
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--accent-color);
    text-decoration: none;
  }

  .nav-links {
    display: flex;
    gap: 30px;
  }

  .nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
  }

  .nav-links a:hover {
    color: var(--accent-color);
  }

  .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s;
  }

  .nav-links a:hover::after {
    width: 100%;
  }

  .content-section {
    padding: 80px 0;
    position: relative;
  }

  .content-section:nth-child(even) {
    background: rgba(240, 244, 248, 0.3);
  }

  .section-title {
    font-size: 2.2rem;
    margin-bottom: 40px;
    color: var(--text-color);
    position: relative;
    display: inline-block;
  }

  .section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent-color);
  }

  .card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
  }

  .card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    transition: var(--transition);
    backdrop-filter: blur(5px);
  }

  .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  }

  .card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--accent-color);
  }

  .card p {
    margin-bottom: 20px;
  }

  .card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
  }

  .card:hover .card-img {
    transform: scale(1.03);
  }

  .code-block {
    background: rgba(0, 0, 0, 0.8);
    border-radius: 10px;
    padding: 20px;
    margin: 30px 0;
    overflow-x: auto;
    box-shadow: var(--shadow);
  }

  .code-block pre {
    margin: 0;
    font-family: 'Courier New', monospace;
    color: #f0f0f0;
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .code-block code {
    display: block;
    white-space: pre;
  }

  .toggle-theme {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--accent-color);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    z-index: 1000;
  }

  .toggle-theme:hover {
    transform: scale(1.1);
  }

  .article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(5px);
  }

  .article-content h2 {
    font-size: 2rem;
    margin: 40px 0 20px;
    color: var(--accent-color);
  }

  .article-content h3 {
    font-size: 1.5rem;
    margin: 30px 0 15px;
  }

  .article-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.7;
  }

  .article-content a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s;
  }

  .article-content a:hover {
    text-decoration: underline;
  }

  .footer {
    background: var(--primary-color);
    color: var(--text-color);
    padding: 40px 0;
    text-align: center;
    margin-top: 80px;
  }

  @media (max-width: 768px) {
    .hero h1 {
      font-size: 2.2rem;
    }
    
    .hero p {
      font-size: 1rem;
    }
    
    .nav-links {
      gap: 15px;
    }
    
    .section-title {
      font-size: 1.8rem;
    }
    
    .card-grid {
      grid-template-columns: 1fr;
    }
  }