/* CUDA Guide 自定义样式 */
:root {
  --md-primary-fg-color: #1b5e20;
  --md-accent-fg-color: #00897b;
}

/* 代码块美化 */
.md-typeset pre > code {
  font-size: 0.85em;
}

/* 导航增强 */
.md-nav__title {
  font-weight: 700;
}

/* 首页英雄区 */
.hero {
  background: linear-gradient(135deg, #1b5e20 0%, #2e7d32 50%, #00695c 100%);
  color: white;
  padding: 3rem 2rem;
  border-radius: 8px;
  margin-bottom: 2rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
  color: white !important;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* 特性卡片 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.feature-card {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 8px;
  padding: 1.5rem;
  transition: box-shadow 0.2s;
}

.feature-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.feature-card h3 {
  margin-top: 0;
  color: var(--md-primary-fg-color);
}