/* 页面基础样式与布局 */
:root {
  --main-bg: linear-gradient(135deg, #1e1e2f, #2c2c40);
  --secondary-bg: #181825;
  --accent-color: #ff9800;
  --text-color: #e0e0e0;
  --code-bg: rgba(255, 255, 255, 0.05);
  --line-color: #3f51b5;
  --gap-size: 20px;
}

body {
  margin: 0;
  font-family: 'Roboto Mono', monospace;
  background: var(--main-bg);
  color: var(--text-color);
  line-height: 1.6;
  letter-spacing: 0.5px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--gap-size);
}

.header {
  text-align: center;
  padding: 40px 20px;
  background: linear-gradient(135deg, #2c2c40, #1e1e2f);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header h1 {
  font-size: 2.5rem;
  margin: 0;
  color: var(--accent-color);
}

.content {
  background: var(--secondary-bg);
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  padding: 30px;
}

.article {
  font-size: 1rem;
  line-height: 1.8;
}

.article h2 {
  font-size: 1.8rem;
  color: var(--accent-color);
  margin-bottom: 20px;
}

.article h3 {
  font-size: 1.4rem;
  color: #ff9800;
  margin-top: 30px;
}

.article p {
  margin-bottom: 15px;
}

.article ul {
  list-style: none;
  padding: 0;
}

.article li {
  margin-bottom: 10px;
  position: relative;
  padding-left: 20px;
}

.article li::before {
  content: '•';
  color: var(--line-color);
  position: absolute;
  left: 0;
}

.code-block {
  background: var(--code-bg);
  padding: 15px;
  border-radius: 5px;
  font-size: 0.9rem;
  overflow-x: auto;
}

.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}

th, td {
  padding: 10px;
  text-align: left;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

th {
  background: rgba(255, 255, 255, 0.05);
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin-bottom: 20px;
}

@media (max-width: 768px) {
  .container {
    grid-template-columns: 1fr;
  }

  .header h1 {
    font-size: 2rem;
  }

  .article h2 {
    font-size: 1.6rem;
  }

  .article h3 {
    font-size: 1.2rem;
  }
}