:root {
  --primary-color: #1A237E; /* 深蓝 */
  --secondary-color: #424242; /* 灰色 */
  --accent-color: #FFEB3B; /* 荧光绿 */
  --background-color: #121212; /* 黑暗背景 */
  --hover-color: #F44336; /* 霓虹粉色 */
  --font-family: 'Futura', sans-serif;
}

body {
  background: linear-gradient(135deg, var(--background-color), #2c3e50);
  color: #ffffff;
  font-family: var(--font-family);
  line-height: 1.6;
  margin: 0;
  padding: 20px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--secondary-color);
}

header h1 {
  color: var(--primary-color);
  font-size: 28px;
  margin: 0;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
}

nav ul li {
  margin-right: 20px;
}

nav ul li a {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 700;
  transition: color 0.3s ease;
}

nav ul li a:hover {
  color: var(--hover-color);
}

section {
  margin: 20px 0;
}

h2, h3, h4 {
  color: var(--primary-color);
  margin-top: 20px;
}

p {
  font-size: 16px;
  margin-bottom: 20px;
}

ul, ol {
  margin-left: 20px;
  margin-bottom: 20px;
}

li {
  font-size: 16px;
  margin-bottom: 10px;
}

pre {
  background: rgba(255, 255, 255, 0.05);
  padding: 10px;
  border-radius: 5px;
  overflow-x: auto;
}

code {
  font-size: 14px;
  color: var(--accent-color);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
}

th, td {
  border: 1px solid var(--secondary-color);
  padding: 10px;
  text-align: left;
}

th {
  background: var(--secondary-color);
  color: #ffffff;
}

td {
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 5px;
  margin-bottom: 20px;
}

.glass-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  padding: 20px;
  width: 100%;
  max-width: 300px;
  margin: 20px 0;
}

.button {
  background-color: var(--accent-color);
  border: none;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
  transition: transform 0.3s ease-in-out;
}

.button:hover {
  transform: scale(1.1);
}

.container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.card {
  flex-basis: calc(33.33% - 20px);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  padding: 20px;
  transition: transform 0.3s ease-in-out;
}

.card:hover {
  transform: scale(1.05);
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }
  
  .card {
    width: 100%;
  }
}

footer {
  text-align: center;
  margin-top: 40px;
  padding: 20px 0;
  border-top: 1px solid var(--secondary-color);
  color: var(--secondary-color);
}

footer p {
  margin: 0;
  font-size: 14px;
}