:root {
    --primary: #1e3c72;
    --secondary: #2a5298;
    --accent: #ff7f50;
    --safe: #28a745;
    --light: #f5f5f5;
    --dark: #333;
    --text: #444;
    --white: #fff;
    --shadow: 0 4px 20px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
  }

  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
  }

  body {
    background: linear-gradient(135deg, #f9f9f9, #eef2f5);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
  }

  .header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(30, 60, 114, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .logo {
    color: var(--white);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent);
    border-radius: 8px;
    display: grid;
    place-items: center;
    color: var(--white);
    font-weight: bold;
  }

  .nav-links {
    display: flex;
    gap: 2rem;
  }

  .nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
  }

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

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

  .hero {
    min-height: 80vh;
    padding: 8rem 5% 4rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
  }

  .hero-content {
    max-width: 600px;
  }

  .hero-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
    line-height: 1.2;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .hero-subtitle {
    font-size: 1.2rem;
    color: var(--text);
    margin-bottom: 2rem;
    opacity: 0.9;
  }

  .hero-image {
    position: relative;
    height: 100%;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
  }

  .hero-image:hover {
    transform: translateY(-10px);
  }

  .hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
  }

  .hero-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, rgba(30,60,114,0.3), rgba(42,82,152,0.3));
    z-index: 1;
  }

  .notice {
    background: var(--light);
    padding: 2rem;
    border-radius: 12px;
    margin: 2rem 5%;
    text-align: center;
    box-shadow: var(--shadow);
    border-left: 5px solid var(--accent);
  }

  .notice p {
    font-size: 1.1rem;
    color: var(--primary);
    font-weight: 500;
  }

  article {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 5%;
  }

  article h2 {
    font-size: 2rem;
    margin: 3rem 0 1.5rem;
    color: var(--primary);
    position: relative;
    padding-left: 1.5rem;
  }

  article h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5rem;
    height: 2rem;
    width: 6px;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
    border-radius: 3px;
  }

  article p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.7;
  }

  article code {
    background: rgba(30,60,114,0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--primary);
  }

  table {
    width: 100%;
    margin: 2rem 0;
    border-collapse: collapse;
    box-shadow: var(--shadow);
    border-radius: 12px;
    overflow: hidden;
  }

  table thead {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: var(--white);
  }

  table th {
    padding: 1rem;
    text-align: left;
    font-weight: 500;
  }

  table tr {
    background: var(--white);
    transition: var(--transition);
  }

  table tr:nth-child(even) {
    background: var(--light);
  }

  table tr:hover {
    background: rgba(30,60,114,0.05);
  }

  table td {
    padding: 1rem;
    vertical-align: top;
  }

  pre {
    background: #282c34;
    color: #abb2bf;
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
  }

  .gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 3rem 0;
  }

  .gallery-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    aspect-ratio: 1;
  }

  .gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
  }

  .gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
  }

  .gallery-item:hover img {
    transform: scale(1.05);
  }

  .footer {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: var(--white);
    padding: 3rem 5%;
    text-align: center;
    margin-top: 5rem;
  }

  .footer p {
    opacity: 0.8;
  }

  @media (max-width: 1024px) {
    .hero {
      grid-template-columns: 1fr;
      padding-top: 6rem;
    }
    
    .hero-content {
      max-width: 100%;
    }
    
    .hero-image {
      height: 400px;
    }
  }

  @media (max-width: 768px) {
    .nav-links {
      display: none;
    }
    
    .hero-title {
      font-size: 2.2rem;
    }
    
    article h2 {
      font-size: 1.8rem;
    }
    
    .gallery {
      grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
  }

  @media (max-width: 480px) {
    .hero-title {
      font-size: 1.8rem;
    }
    
    .hero-subtitle {
      font-size: 1rem;
    }
    
    article h2 {
      font-size: 1.5rem;
    }
    
    article p {
      font-size: 1rem;
    }
  }