:root {
  --primary: #2c3e50;
  --secondary: #8e44ad;
  --accent: #e67e22;
  --light: #ecf0f1;
  --dark: #1a1a1a;
  --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
}

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

body {
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  color: var(--light);
  background: var(--gradient);
  background-attachment: fixed;
  padding-top: 80px;
}

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

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(44, 62, 80, 0.95);
  backdrop-filter: blur(10px);
  padding: 15px 0;
  z-index: 1000;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--light);
  text-decoration: none;
}

.notice {
  background: rgba(255, 255, 255, 0.1);
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 40px;
  text-align: center;
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero {
  text-align: center;
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
  z-index: -1;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  background: linear-gradient(to right, #fff, #ddd);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 30px;
}

article {
  background: rgba(26, 26, 26, 0.7);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 40px;
  margin-bottom: 60px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

article h2 {
  font-size: 2rem;
  margin-bottom: 30px;
  color: var(--light);
  position: relative;
  padding-bottom: 15px;
}

article h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 3px;
  background: var(--accent);
}

article h3 {
  font-size: 1.5rem;
  margin: 30px 0 20px;
  color: var(--light);
}

article p {
  margin-bottom: 20px;
  font-size: 1.1rem;
}

article strong {
  color: var(--accent);
}

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

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

pre {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  padding: 20px;
  margin: 20px 0;
  overflow-x: auto;
  border-left: 4px solid var(--accent);
}

code {
  font-family: 'Courier New', monospace;
  color: #f8f8f2;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  padding: 15px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

th {
  background: rgba(0, 0, 0, 0.3);
  font-weight: 600;
}

tr:hover {
  background: rgba(255, 255, 255, 0.05);
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin: 40px 0;
}

.image-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.image-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.image-card img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px 12px 0 0;
}

.image-caption {
  padding: 15px;
  font-size: 0.9rem;
}

.footer {
  text-align: center;
  padding: 30px 0;
  background: rgba(0, 0, 0, 0.3);
  margin-top: 60px;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  article {
    padding: 20px;
  }
  
  article h2 {
    font-size: 1.5rem;
  }
  
  article h3 {
    font-size: 1.2rem;
  }
  
  .image-grid {
    grid-template-columns: 1fr;
  }
}

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

.decorative-element {
  position: absolute;
  width: 100px;
  height: 100px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  filter: blur(20px);
  animation: float 6s ease-in-out infinite;
}

.decorative-element:nth-child(1) {
  top: 20%;
  left: 10%;
  width: 150px;
  height: 150px;
  animation-delay: 0s;
}

.decorative-element:nth-child(2) {
  top: 60%;
  right: 15%;
  width: 80px;
  height: 80px;
  animation-delay: 2s;
}

.decorative-element:nth-child(3) {
  bottom: 10%;
  left: 20%;
  width: 120px;
  height: 120px;
  animation-delay: 4s;
}