/* 全局样式 */
body {
  margin: 0;
  padding: 0;
  font-family: 'Roboto', sans-serif;
  background: linear-gradient(135deg, #000033, #1a1a4d);
  color: #ffffff;
  overflow-x: hidden;
}

/* 颜色变量 */
:root {
  --primary-color: #6c5ce7; /* 霓虹紫色 */
  --secondary-color: #3498db; /* 电光蓝 */
  --accent-color: #00ffcc; /* 翠绿色 */
  --background-gradient: linear-gradient(135deg, #000033, #1a1a4d);
}

/* 头部样式 */
header {
  background: rgba(0, 0, 51, 0.8);
  padding: 20px;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 1000;
}

header h1 {
  margin: 0;
  font-size: 2.5em;
  color: var(--primary-color);
}

/* 导航栏样式 */
nav {
  margin-top: 10px;
}

nav a {
  color: #ffffff;
  text-decoration: none;
  margin: 0 15px;
  font-size: 1em;
  transition: color 0.3s;
}

nav a:hover {
  color: var(--secondary-color);
  text-decoration: underline;
}

/* 主内容区域 */
.container {
  max-width: 1200px;
  margin: 40px auto;
  padding: 20px;
  background: rgba(26, 26, 77, 0.9);
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

.container h2 {
  font-size: 2em;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.container h3 {
  font-size: 1.5em;
  color: var(--secondary-color);
  margin-top: 30px;
  margin-bottom: 15px;
}

.container p {
  font-size: 1em;
  line-height: 1.6;
  color: #f0f0f0;
  margin-bottom: 15px;
}

.container pre {
  background: #1a1a4d;
  padding: 15px;
  border-radius: 5px;
  overflow-x: auto;
  margin-bottom: 20px;
}

.container code {
  color: #00ffcc;
  font-family: 'Courier New', Courier, monospace;
}

/* 表格样式 */
.container table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}

.container th, .container td {
  border: 1px solid #444;
  padding: 10px;
  text-align: left;
}

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

.container tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.05);
}

/* 图片样式 */
.container img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin: 20px 0;
}

/* 按钮样式 */
.button {
  padding: 10px 20px;
  background-color: var(--secondary-color);
  color: #ffffff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: box-shadow 0.3s;
}

.button:hover {
  box-shadow: 0 0 10px var(--secondary-color), 0 0 20px var(--secondary-color);
}

/* 底部样式 */
footer {
  background: rgba(0, 0, 51, 0.8);
  padding: 20px;
  text-align: center;
  color: #ffffff;
}

/* 粒子效果 */
.particle-effect {
  position: absolute;
  width: 10px;
  height: 10px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  animation: float 5s infinite ease-in-out;
}

@keyframes float {
  0% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.2); }
  100% { transform: translateY(0) scale(1); }
}

/* 视差滚动 */
.parallax-layer {
  position: relative;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* 视差层 */
.layer-1 { background-image: url('https://images.gptkong.com/demo/sample1.png'); }
.layer-2 { background-image: url('https://images.gptkong.com/demo/sample2.png'); }

/* 交互动画 */
@keyframes glow {
  from { box-shadow: 0 0 5px var(--secondary-color); }
  to { box-shadow: 0 0 20px var(--secondary-color); }
}

.button:hover {
  animation: glow 1s alternate infinite;
}

/* 响应式设计 */
@media (max-width: 1440px) {
  .container {
    max-width: 1024px;
  }
}

@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }
}

@media (max-width: 1024px) {
  .container {
    padding: 15px;
  }
}

@media (max-width: 768px) {
  header h1 {
    font-size: 2em;
  }

  nav a {
    margin: 0 10px;
    font-size: 0.9em;
  }

  .container {
    padding: 10px;
  }
}

@media (max-width: 480px) {
  header h1 {
    font-size: 1.5em;
  }

  nav a {
    display: block;
    margin: 10px 0;
  }

  .container {
    padding: 8px;
  }
}

@media (max-width: 320px) {
  header h1 {
    font-size: 1.2em;
  }

  nav a {
    font-size: 0.8em;
  }

  .container {
    padding: 5px;
  }

  .container h2 {
    font-size: 1.5em;
  }

  .container h3 {
    font-size: 1.2em;
  }

  .container p, .container code, .container table {
    font-size: 0.9em;
  }
}