:root {
    --primary: #0A2463;
    --secondary: #F5F5F5;
    --accent: #FF9800;
    --text: #333333;
    --light: #FFFFFF;
    --shadow: 0 4px 20px rgba(0,0,0,0.1);
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  }

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

  body {
    font-family: 'Noto Sans', sans-serif;
    color: var(--text);
    background: linear-gradient(135deg, var(--secondary) 0%, var(--light) 100%);
    line-height: 1.6;
    overflow-x: hidden;
  }

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

  /* Header */
  .header {
    position: relative;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    background: var(--primary);
    color: var(--light);
    box-shadow: var(--shadow);
    z-index: 100;
  }

  .logo {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 1px;
    background: linear-gradient(90deg, var(--accent), var(--light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

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

  .nav-link {
    color: var(--light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
  }

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

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

  /* Hero */
  .hero {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    padding: 0 40px;
    margin-bottom: 80px;
    overflow: hidden;
  }

  .hero:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 30%, rgba(10,36,99,0.1) 0%, rgba(255,255,255,0) 70%);
    z-index: -1;
  }

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

  .hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary);
    line-height: 1.2;
  }

  .hero-subtitle {
    font-size: 18px;
    margin-bottom: 30px;
    color: var(--text);
  }

  .hero-image {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 50%;
    height: 100%;
    object-fit: contain;
    object-position: right bottom;
    z-index: -1;
  }

  /* Article */
  .article {
    background: var(--light);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 60px;
    margin-bottom: 80px;
  }

  .article h2 {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
  }

  .article h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--primary));
    border-radius: 2px;
  }

  .article h3 {
    font-size: 24px;
    color: var(--primary);
    margin: 40px 0 20px;
  }

  .article p {
    margin-bottom: 20px;
    font-size: 17px;
    line-height: 1.8;
  }

  .article img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin: 30px 0;
    transition: var(--transition);
  }

  .article img:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  }

  /* Code blocks */
  pre {
    background: #282c34;
    border-radius: var(--radius);
    padding: 20px;
    margin: 30px 0;
    overflow: hidden;
    position: relative;
  }

  pre:before {
    content: 'CSS';
    position: absolute;
    top: 0;
    right: 0;
    background: var(--accent);
    color: var(--light);
    padding: 5px 15px;
    border-radius: 0 var(--radius) 0 var(--radius);
    font-size: 14px;
    font-weight: 600;
  }

  code {
    font-family: 'Courier New', monospace;
    color: #abb2bf;
    font-size: 15px;
    line-height: 1.5;
  }

  /* Gallery */
  .gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin: 60px 0;
  }

  .gallery-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
  }

  .gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
  }

  .gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: var(--transition);
  }

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

  .gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: var(--light);
    padding: 20px;
  }

  .gallery-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 5px;
  }

  .gallery-desc {
    font-size: 14px;
    opacity: 0.9;
  }

  /* Footer */
  .footer {
    background: var(--primary);
    color: var(--light);
    padding: 60px 0;
    text-align: center;
  }

  .footer-text {
    max-width: 600px;
    margin: 0 auto 30px;
    font-size: 16px;
    opacity: 0.8;
  }

  .footer-notice {
    font-size: 14px;
    opacity: 0.6;
    margin-top: 30px;
  }

  /* Responsive */
  @media (max-width: 992px) {
    .hero {
      height: auto;
      padding: 100px 40px;
      flex-direction: column;
      text-align: center;
    }

    .hero-content {
      max-width: 100%;
      margin-bottom: 40px;
    }

    .hero-image {
      position: relative;
      width: 100%;
      height: 300px;
    }
  }

  @media (max-width: 768px) {
    .header {
      padding: 0 20px;
    }

    .nav {
      gap: 15px;
    }

    .article {
      padding: 40px 20px;
    }

    .hero-title {
      font-size: 36px;
    }
  }

  @media (max-width: 576px) {
    .nav {
      display: none;
    }

    .hero {
      padding: 80px 20px;
    }

    .hero-title {
      font-size: 28px;
    }

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

  /* Animations */
  @keyframes float {
    0%, 100% {
      transform: translateY(0);
    }
    50% {
      transform: translateY(-10px);
    }
  }

  .floating {
    animation: float 3s ease-in-out infinite;
  }

  /* Utility */
  .btn {
    display: inline-block;
    background: var(--accent);
    color: var(--light);
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(255,152,0,0.3);
  }

  .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255,152,0,0.4);
  }

  .highlight {
    background: rgba(255,152,0,0.1);
    padding: 2px 5px;
    border-radius: 3px;
  }

  .divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.1), transparent);
    margin: 60px 0;
  }