* {
  margin:0; padding:0;
  box-sizing:border-box;
}
body {
  font-family:system-ui, sans-serif;
  line-height:1.6;
  background:#f7f7f7;
  padding:2rem 1rem;
}
.container {
  max-width:1400px;
  margin:0 auto;
}
.site-title {
  font-size:2rem;
  margin-bottom:1.5rem;
  text-align:center;
}
.site-title a {
  color:#222;
  text-decoration:none;
}

/* 4 栏网格 */
.post-grid {
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:1.5rem;
}

/* 响应式 */
@media (max-width:1100px) {
  .post-grid { grid-template-columns:repeat(2, 1fr); }
}
@media (max-width:640px) {
  .post-grid { grid-template-columns:1fr; }
}

/* 文章卡片 */
.post-card {
  background:#fff;
  border-radius:8px;
  overflow:hidden;
  box-shadow:0 2px 8px rgba(0,0,0,.06);
}
.post-thumbnail img {
  width:100%;
  height:180px;
  object-fit:cover;
}
.post-content {
  padding:1rem;
}
.post-title {
  font-size:1.1rem;
  margin-bottom:.5rem;
}
.post-title a {
  color:#111;
  text-decoration:none;
}
.post-meta {
  font-size:.85rem;
  color:#666;
  margin-bottom:.5rem;
}
.post-excerpt {
  font-size:.9rem;
  color:#444;
}

/* 分页 */
.pagination {
  text-align:center;
  margin-top:2rem;
}
.pagination a {
  padding:.5rem 1rem;
  background:#fff;
  margin:0 .2rem;
  border-radius:4px;
  text-decoration:none;
  color:#222;
}
.pagination .current {
  background:#222;
  color:#fff;
  padding:.5rem 1rem;
  border-radius:4px;
}