/* 基础样式 */
body {
  font-family: 'Roboto', sans-serif;
  margin: 0;
  padding: 0;
  background: linear-gradient(135deg, #0F4C5C, #39A78E);
  color: #FFFFFF;
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

h1, h2, h3, h4 {
  font-family: 'VT323', sans-serif;
  color: #F7DC6F;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

p {
  font-size: 1em;
  line-height: 1.6;
  margin-bottom: 1.5em;
}

.alert {
  color: #FF4500;
  font-weight: bold;
}

button {
  background-color: #39A78E;
  border: none;
  color: white;
  padding: 10px 20px;
  transition: background-color 0.3s ease;
}

button:hover {
  background-color: #FF4500;
}

/* 网格布局 */
.grid-item {
  background: rgba(255, 255, 255, 0.1);
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* 图片样式 */
img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

/* 动画效果 */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-in {
  animation: fadeIn 1.5s ease-in-out;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .container {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2em;
  }

  h2 {
    font-size: 1.8em;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 10px;
  }

  h1 {
    font-size: 1.8em;
  }

  h2 {
    font-size: 1.6em;
  }
}

/* 代码块样式 */
pre {
  background: #000000;
  color: #FFFFFF;
  padding: 15px;
  border-radius: 8px;
  overflow-x: auto;
}

code {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9em;
}

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

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

th {
  background-color: #39A78E;
}

td {
  background-color: #0F4C5C;
}

/* 特殊提示样式 */
.note {
  background: #39A78E;
  color: #000000;
  padding: 10px;
  border-radius: 8px;
  text-align: center;
  margin-bottom: 20px;
}