body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background: radial-gradient(circle, rgba(30, 41, 59, 1), rgba(0, 0, 0, 0.8));
  color: #ffffff;
  line-height: 1.6;
  overflow-x: hidden;
}
header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}
header h1 {
  font-size: 20px;
  color: #facc15;
  text-transform: uppercase;
  letter-spacing: 2px;
}
main {
  padding-top: 80px;
  padding-bottom: 40px;
}
section {
  padding: 40px 20px;
  position: relative;
}
.banner {
  height: 400px;
  background: linear-gradient(135deg, rgba(255, 247, 237, 0.1), rgba(255, 247, 237, 0.05)), url('https://images.gptkong.com/demo/sample1.png');
  background-size: cover;
  background-position: center;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #facc15;
  text-align: center;
}
.banner h1 {
  font-size: 36px;
  font-weight: bold;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}
.feature-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 20px;
  border-radius: 10px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}
.feature-card img {
  width: 60px;
  height: 60px;
  margin-bottom: 10px;
}
.data-visualization {
  background: linear-gradient(135deg, rgba(217, 119, 6, 0.1), rgba(217, 119, 6, 0.05)), url('https://images.gptkong.com/demo/sample2.png');
  background-size: cover;
  background-position: center;
  padding: 40px 20px;
  border-radius: 10px;
  position: relative;
}
.user-cases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.user-case {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 20px;
  border-radius: 10px;
  text-align: center;
}
.user-case img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin-bottom: 10px;
}
footer {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 20px;
  text-align: center;
  color: #facc15;
}
code {
  background: rgba(255, 255, 255, 0.1);
  padding: 5px 10px;
  border-radius: 5px;
  font-family: 'Courier New', Courier, monospace;
  color: #facc15;
}
pre {
  background: rgba(255, 255, 255, 0.1);
  padding: 15px;
  border-radius: 10px;
  overflow-x: auto;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}