:root {
  --primary-1: #8B5E3C;
  --primary-2: #3D5A80;
  --accent-1: #E07A5F;
  --accent-2: #F2CC8F;
  --text-dark: #333;
  --text-light: #f8f8f8;
  --bg-light: #f9f9f9;
  --bg-dark: #2c3e50;
}

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

body {
  font-family: 'Merriweather', serif;
  line-height: 1.6;
  color: var(--text-dark);
  background: var(--bg-light);
  background-image: url('https://images.gptkong.com/demo/sample4.png');
  background-blend-mode: overlay;
  background-size: 30%;
  background-attachment: fixed;
  background-position: right bottom;
  background-repeat: no-repeat;
}

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

.header {
  background: linear-gradient(135deg, var(--primary-1), var(--primary-2));
  color: var(--text-light);
  padding: 2rem 0;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  position: relative;
  overflow: hidden;
}

.header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('https://images.gptkong.com/demo/sample6.png') no-repeat;
  background-size: 30%;
  background-position: 90% center;
  opacity: 0.1;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: rgba(255,255,255,0.9);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.nav-links a {
  color: var(--primary-2);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-1);
  transition: width 0.3s ease;
}

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

.hero {
  padding: 4rem 0;
  text-align: center;
  background: linear-gradient(rgba(255,255,255,0.9), rgba(255,255,255,0.9));
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--primary-2);
  text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 2rem;
  color: var(--text-dark);
}

.notice {
  background: var(--accent-2);
  padding: 1rem;
  border-radius: 8px;
  margin: 2rem 0;
  text-align: center;
  font-weight: bold;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

article {
  background: white;
  padding: 3rem;
  margin: 2rem 0;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}

article h2 {
  color: var(--primary-2);
  margin: 2rem 0 1rem;
  font-size: 1.8rem;
  position: relative;
  padding-bottom: 0.5rem;
}

article h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-1), var(--primary-1));
}

article h3 {
  color: var(--primary-1);
  margin: 1.5rem 0 1rem;
  font-size: 1.4rem;
}

article p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  line-height: 1.8;
}

pre {
  background: var(--bg-dark);
  color: #f8f8f2;
  padding: 1.5rem;
  border-radius: 8px;
  margin: 1.5rem 0;
  overflow-x: auto;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.3);
  font-family: 'Courier New', monospace;
  font-size: 0.95rem;
  line-height: 1.5;
}

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

.img-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0;
  justify-content: center;
}

.img-container img {
  width: 300px;
  height: 300px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}

.img-container img:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

.footer {
  background: linear-gradient(135deg, var(--primary-2), var(--primary-1));
  color: var(--text-light);
  padding: 3rem 0;
  text-align: center;
  margin-top: 4rem;
}

.footer p {
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1.5rem;
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  transition: all 0.3s ease;
}

.footer-links a:hover {
  color: var(--accent-2);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  article {
    padding: 2rem 1.5rem;
  }
  
  .img-container img {
    width: 100%;
    height: auto;
  }
  
  .hero h1 {
    font-size: 2.2rem;
  }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

article {
  animation: fadeIn 0.8s ease-out forwards;
}

.card {
  background: white;
  border-radius: 8px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.highlight {
  background: linear-gradient(90deg, rgba(224,122,95,0.1), rgba(139,94,60,0.1));
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-weight: 500;
}