/* ============================================================================
   blog.css —— 博客列表页 / 文章页的样式（只看外观，逻辑在 js/blog.js）
   颜色全部走 css/site.css 里的 --ui-* 变量，所以深浅色自动跟着变。
   ============================================================================ */

/* ---------- 首页「全部文章」入口 ---------- */
.posts-foot {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--ui-line);
}

.posts-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ui-accent);
  text-decoration: none;
  transition: gap .2s ease;
}

.posts-more:hover {
  gap: 10px;
  color: var(--ui-accent);
  text-decoration: none;
}

.posts-more i {
  font-size: 11px;
}

/* ---------- 空状态补充 ---------- */
.empty__hint {
  margin: 6px 0 0;
  font-size: 12px;
  color: var(--ui-muted);
  opacity: .85;
}

.empty__hint a {
  color: var(--ui-accent);
  text-decoration: none;
}

.empty__hint a:hover {
  text-decoration: underline;
}

/* ---------- 搜索框 ---------- */
.blog-tools {
  margin-bottom: 6px;
}

.blog-search {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 10px;
  border: 1px solid var(--ui-line);
  border-radius: var(--ui-radius-sm);
  background: var(--ui-card-2);
  transition: border-color .2s ease, box-shadow .2s ease;
}

.blog-search:focus-within {
  border-color: var(--ui-accent);
  box-shadow: 0 0 0 3px rgba(116, 158, 252, .16);
}

.blog-search > i {
  font-size: 12px;
  color: var(--ui-muted);
}

.blog-search input {
  flex: 1;
  min-width: 0;
  height: 100%;
  padding: 0;
  border: none;
  outline: none;
  background: transparent;
  font-size: 13px;
  color: var(--ui-text);
}

.blog-search input::placeholder {
  color: var(--ui-muted);
}

/* 去掉 Safari/Chrome 自带的清除叉，用我们自己的 */
.blog-search input::-webkit-search-cancel-button {
  -webkit-appearance: none;
  appearance: none;
}

.blog-search__clear {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: var(--ui-hover);
  color: var(--ui-muted);
  font-size: 10px;
  cursor: pointer;
  transition: background .2s ease, color .2s ease;
}

.blog-search__clear:hover {
  background: var(--ui-accent);
  color: #fff;
}

/* ---------- 列表 ---------- */
.blog-list {
  transition: opacity .18s ease;
}

.blog-list.is-loading {
  opacity: .45;
}

.blog-item {
  display: block;
  padding: 12px 2px;
  border-bottom: 1px solid var(--ui-line);
  color: inherit;
  text-decoration: none;
  transition: padding-left .22s ease, border-color .22s ease;
}

.blog-item:last-child {
  border-bottom: none;
}

.blog-item:hover {
  padding-left: 6px;
  color: inherit;
  text-decoration: none;
}

.blog-item__date {
  font-size: 11px;
  color: var(--ui-muted);
  font-variant-numeric: tabular-nums;
}

.blog-item__title {
  margin: 3px 0 4px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--ui-text);
  transition: color .2s ease;
}

.blog-item:hover .blog-item__title {
  color: var(--ui-accent);
}

.blog-item__excerpt {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ui-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 分页 ---------- */
.blog-pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 14px;
}

.blog-pager__btn {
  min-width: 30px;
  height: 30px;
  padding: 0 9px;
  border: 1px solid var(--ui-line);
  border-radius: var(--ui-radius-sm);
  background: transparent;
  font-size: 12.5px;
  color: var(--ui-text);
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}

.blog-pager__btn:hover:not(:disabled):not(.is-active) {
  background: var(--ui-hover);
  border-color: var(--ui-accent);
}

.blog-pager__btn.is-active {
  border-color: transparent;
  background: var(--ui-accent);
  color: #fff;
  cursor: default;
}

.blog-pager__btn:disabled {
  opacity: .4;
  cursor: not-allowed;
}

.blog-pager__gap {
  padding: 0 2px;
  font-size: 12px;
  color: var(--ui-muted);
}

/* ---------- 文章页 ---------- */
.article {
  padding: 20px 22px 22px;
}

.article-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
  font-size: 12px;
  color: var(--ui-muted);
  text-decoration: none;
  transition: color .2s ease, gap .2s ease;
}

.article-back:hover {
  gap: 9px;
  color: var(--ui-accent);
  text-decoration: none;
}

.article-title {
  margin: 0 0 8px;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: .2px;
  color: var(--ui-text);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ui-line);
  font-size: 11.5px;
  color: var(--ui-muted);
  font-variant-numeric: tabular-nums;
}

.article-body {
  font-size: 14px;
  line-height: 1.85;
  color: var(--ui-text);
  overflow-wrap: break-word;
}

.article-body p {
  margin: 0 0 14px;
}

.article-body p:last-child {
  margin-bottom: 0;
}

.article-empty {
  color: var(--ui-muted);
  font-size: 13px;
}

/* 上下篇 */
.article-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--ui-line);
}

.article-nav:empty {
  display: none;
}

.article-nav__item {
  flex: 1 1 200px;
  min-width: 0;
  padding: 9px 11px;
  border: 1px solid var(--ui-line);
  border-radius: var(--ui-radius-sm);
  background: var(--ui-card-2);
  color: inherit;
  text-decoration: none;
  transition: border-color .2s ease, background .2s ease;
}

.article-nav__item:hover {
  border-color: var(--ui-accent);
  background: var(--ui-hover);
  color: inherit;
  text-decoration: none;
}

.article-nav__item--next {
  text-align: right;
}

.article-nav__label {
  display: block;
  font-size: 11px;
  color: var(--ui-muted);
}

.article-nav__title {
  display: block;
  margin-top: 3px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ui-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- 移动端 ---------- */
@media (max-width: 767px) {
  .article {
    padding: 16px 16px 18px;
  }

  .article-title {
    font-size: 18.5px;
  }

  .article-nav__item {
    flex: 1 1 100%;
  }

  .article-nav__item--next {
    text-align: left;
  }
}

/* ============================ 分类（chips + 列表项 + 文章页） ============================ */
.blog-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 10px;
}
.blog-cats[hidden] { display: none; }

.blog-cat {
  padding: 4px 11px;
  border: 1px solid var(--ui-line);
  border-radius: 999px;
  background: transparent;
  color: var(--ui-muted);
  font-size: 12px;
  line-height: 1.5;
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease, background .18s ease;
}
.blog-cat:hover {
  color: var(--ui-text);
  border-color: var(--ui-accent);
}
.blog-cat.is-active {
  border-color: transparent;
  background: rgba(116, 158, 252, .14);
  color: var(--ui-accent);
  font-weight: 600;
}

.blog-item__meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.blog-item__cat {
  padding: 1px 8px;
  border: 1px solid var(--ui-line);
  border-radius: 999px;
  font-size: 10.5px;
  color: var(--ui-muted);
}

.article-cat {
  color: var(--ui-accent);
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
}
.article-cat:hover { color: var(--ui-accent); text-decoration: none; opacity: .8; }