* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f5f7;
  color: #222;
  line-height: 1.6;
}

a {
  color: #2563eb;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 16px;
}

/* 头部 */

.site-header {
  background: #111827;
  color: #f9fafb;
  padding: 24px 0;
  margin-bottom: 24px;
}

.site-title {
  font-size: 28px;
  font-weight: 700;
}

.site-subtitle {
  margin-top: 4px;
  color: #9ca3af;
}

.site-nav {
  margin-top: 12px;
}

.site-nav a {
  margin-right: 16px;
  color: #e5e7eb;
}

/* 文章列表 */

.post-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 12px;
}

.post-card {
  background: #ffffff;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.post-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

.post-card-title {
  font-size: 20px;
  margin-bottom: 4px;
}

.post-card-meta {
  font-size: 13px;
  color: #6b7280;
  margin-bottom: 8px;
}

.post-card-excerpt {
  font-size: 14px;
  color: #374151;
}

/* 详情页 */

.post-detail {
  background: #ffffff;
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.post-detail h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.post-meta {
  font-size: 13px;
  color: #6b7280;
  margin-bottom: 16px;
}

.post-content p {
  margin-bottom: 12px;
}

/* 关于我 */

.about {
  margin-top: 32px;
  background: #ffffff;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

/* 底部 */

.site-footer {
  margin-top: 40px;
  padding: 16px 0;
  text-align: center;
  font-size: 13px;
  color: #6b7280;
}