/* 基础样式与页面布局 */
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, #032B44, #121212);
  color: #ffffff;
  line-height: 1.6;
  overflow-x: hidden;
}
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(3, 43, 68, 0.9);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  z-index: 1000;
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 30px;
}
.logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 24px;
  font-weight: bold;
  letter-spacing: 1px;
  color: #38C172;
}
.menu {
  display: flex;
  gap: 20px;
  list-style: none;
}
.menu li {
  cursor: pointer;
  transition: color 0.3s ease;
}
.menu li:hover {
  color: #FF9F1C;
}
.actions button {
  background: #38C172;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s ease;
}
.actions button:hover {
  background: #FF9F1C;
}
.hero {
  height: 100vh;
  background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center/cover, linear-gradient(135deg, #032B44, #121212);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #fff;
}
.hero h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 48px;
  font-weight: bold;
  letter-spacing: 2px;
  margin-bottom: 20px;
}
.hero p {
  font-size: 20px;
  margin-bottom: 30px;
}
.hero button {
  background: #FF9F1C;
  border: none;
  padding: 15px 30px;
  border-radius: 5px;
  font-size: 18px;
  font-weight: bold;
  cursor: pointer;
  transition: transform 0.3s ease;
}
.hero button:hover {
  transform: scale(1.1);
}
.section {
  padding: 60px 30px;
  background: linear-gradient(135deg, #121212, #032B44);
}
.section h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 36px;
  font-weight: bold;
  margin-bottom: 30px;
  color: #38C172;
}
.card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
  transition: transform 0.3s ease;
}
.card:hover {
  transform: translateY(-10px);
}
pre {
  background: rgba(0, 0, 0, 0.8);
  padding: 20px;
  border-radius: 5px;
  overflow-x: auto;
}
code {
  color: #FF9F1C;
  font-family: 'Courier New', monospace;
}
@media (max-width: 768px) {
  .hero h1 {
    font-size: 36px;
  }
  .hero p {
    font-size: 16px;
  }
  .section {
    padding: 40px 20px;
  }
}