:root {
  --primary: linear-gradient(135deg, #1e3c72, #2a5298, #6a11cb, #2575fc);
  --secondary: rgba(255, 215, 0, 0.7);
  --accent: #6a11cb;
  --text: rgba(255, 255, 255, 0.9);
  --card-bg: rgba(255, 255, 255, 0.1);
  --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  background: var(--primary);
  color: var(--text);
  font-family: 'Montserrat', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

.header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(30, 60, 114, 0.8);
  backdrop-filter: blur(10px);
  padding: 1.5rem 5%;
  z-index: 1000;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(45deg, #fff, var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

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

.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
  transition: var(--transition);
}

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

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

.main {
  padding: 8rem 5% 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.hero {
  text-align: center;
  padding: 4rem 0;
  margin-bottom: 3rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('https://images.gptkong.com/demo/sample1.png') center/cover;
  opacity: 0.2;
  z-index: -1;
  border-radius: 20px;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  background: linear-gradient(45deg, #fff, var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

.notice {
  background: rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 8px;
  margin: 2rem 0;
  text-align: center;
  backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

article {
  background: rgba(0, 0, 0, 0.3);
  padding: 3rem;
  border-radius: 20px;
  backdrop-filter: blur(5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  margin-bottom: 3rem;
}

article h2 {
  font-size: 2.2rem;
  margin-bottom: 1.5rem;
  color: var(--secondary);
  position: relative;
  padding-bottom: 0.5rem;
}

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

article h3 {
  font-size: 1.8rem;
  margin: 2rem 0 1rem;
  color: #fff;
}

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

table {
  width: 100%;
  margin: 2rem 0;
  border-collapse: collapse;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  overflow: hidden;
}

table thead {
  background: rgba(106, 17, 203, 0.5);
}

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

table td {
  padding: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

pre {
  background: rgba(0, 0, 0, 0.3);
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  font-family: 'Courier New', monospace;
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 1rem 0;
  border-left: 4px solid var(--accent);
}

code {
  font-family: 'Courier New', monospace;
  background: rgba(0, 0, 0, 0.3);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.95rem;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.gallery-item {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
  position: relative;
}

.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.gallery-item img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  display: block;
}

.footer {
  background: rgba(0, 0, 0, 0.8);
  padding: 3rem 5%;
  text-align: center;
  margin-top: 3rem;
}

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

.partner-logo {
  width: 120px;
  opacity: 0.7;
  transition: var(--transition);
}

.partner-logo:hover {
  opacity: 1;
}

@media (max-width: 768px) {
  .header {
    padding: 1rem;
    flex-direction: column;
  }
  
  .nav-links {
    margin-top: 1rem;
    gap: 1rem;
  }
  
  .main {
    padding: 6rem 1rem 2rem;
  }
  
  article {
    padding: 2rem 1rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .gallery {
    grid-template-columns: 1fr;
  }
}