/* 组件：列表、文章排版、标签云、归档、搜索、关于、404、分页 */

.intro { margin-bottom: 56px; }
.intro h1 { font-size: 1.5rem; margin: 0 0 8px; letter-spacing: -0.015em; }
.intro p { color: var(--fg-muted); margin: 0; }

.post-list { list-style: none; padding: 0; margin: 0; }
.post-list > li { padding: 20px 0; border-bottom: 1px solid var(--border); }
.post-list > li:first-child { padding-top: 0; }

.post-item h2 {
  font-size: 1.15rem;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
  font-weight: 600;
}
.post-item h2 a { color: var(--fg); border-bottom: 0; }
.post-item h2 a:hover { color: var(--accent); }

.post-meta {
  font-size: 0.825rem;
  color: var(--fg-muted);
  font-family: var(--font-mono);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.post-meta time { color: var(--fg-subtle); }

.post-excerpt { color: var(--fg-muted); margin: 8px 0 0; font-size: 0.95rem; }

.pin-badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 1px 6px;
  background: var(--code-bg);
  color: var(--accent);
  border-radius: 2px;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.pagination {
  margin-top: 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--fg-muted);
}
.pagination .pager { display: flex; gap: 8px; }
.pagination .pager a,
.pagination .pager span {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  min-width: 36px;
  display: inline-block;
  text-align: center;
}
.pagination .pager span[aria-current] {
  background: var(--code-bg);
  color: var(--fg);
}

article header.post-header { margin-bottom: 40px; }
article h1 {
  font-size: 1.875rem;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  font-weight: 700;
}
article .post-meta { margin-bottom: 0; }

.prose h2 {
  font-size: 1.375rem;
  margin: 2em 0 0.6em;
  letter-spacing: -0.015em;
  font-weight: 700;
  scroll-margin-top: 32px;
}
.prose h3 {
  font-size: 1.125rem;
  margin: 2em 0 0.6em;
  letter-spacing: -0.01em;
  font-weight: 600;
  scroll-margin-top: 32px;
}
.prose h4 { font-size: 1rem; margin: 1.6em 0 0.5em; font-weight: 600; }

.prose p { margin: 1.4em 0; }
.prose ul, .prose ol { margin: 1.4em 0; padding-left: 1.6em; }
.prose li { margin: 0.4em 0; }

.prose blockquote {
  margin: 1.6em 0;
  padding: 0.2em 0 0.2em 1.2em;
  border-left: 2px solid var(--accent);
  color: var(--fg-muted);
  font-style: italic;
}
.prose blockquote p { margin: 0.4em 0; }

.prose strong { font-weight: 600; color: var(--fg); }
.prose em { font-style: italic; }
.prose mark { background: var(--mark-bg); color: inherit; padding: 0 2px; }

/* 表格容器：渲染管线把 <table> 套进 .table-wrap，否则窄屏会撑爆视口 */
.prose .table-wrap,
.prose table {
  width: 100%;
}
.prose .table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.6em 0;
  border: 1px solid var(--border);
  border-radius: 4px;
}
.prose .table-wrap table { margin: 0; border: 0; }

.prose table {
  border-collapse: collapse;
  margin: 1.6em 0;
  font-size: 0.9rem;
}
.prose th, .prose td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}
.prose th {
  font-weight: 600;
  color: var(--fg);
  border-bottom: 2px solid var(--border);
}
.prose td { color: var(--fg-muted); }
.prose td code { font-size: 0.85em; }

.prose figure { margin: 1.8em 0; }
.prose figure img,
.prose figure svg {
  display: block;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--code-bg);
}
.prose figcaption {
  text-align: center;
  font-size: 0.825rem;
  color: var(--fg-muted);
  margin-top: 8px;
}

.footnotes {
  margin-top: 3em;
  padding-top: 1.5em;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--fg-muted);
}
.footnotes ol { padding-left: 1.4em; }
.footnote-ref { font-size: 0.75em; vertical-align: super; margin-left: 1px; }

.post-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--fg-muted);
}
.post-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.tag-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--fg-muted);
  display: inline-block;
}
.tag-link:hover { color: var(--accent); border-color: var(--accent); }

.tag-cloud {
  display: flex;
  gap: 10px 12px;
  flex-wrap: wrap;
  margin: 32px 0;
}
.tag-cloud a {
  font-family: var(--font-mono);
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--fg-muted);
  font-size: 0.9rem;
}
.tag-cloud a .count { color: var(--fg-subtle); font-size: 0.8em; margin-left: 4px; }
.tag-cloud a:hover { color: var(--accent); border-color: var(--accent); }
.tag-cloud a.size-lg { font-size: 1.05rem; }
.tag-cloud a.size-md { font-size: 0.95rem; }
.tag-cloud a.size-sm { font-size: 0.85rem; }

.archive-year {
  margin: 32px 0 12px;
  font-size: 1.25rem;
  font-family: var(--font-mono);
  color: var(--fg);
  font-weight: 600;
}
.archive-list { list-style: none; padding: 0; margin: 0; }
.archive-list li {
  display: flex;
  gap: 16px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
.archive-list time {
  font-family: var(--font-mono);
  font-size: 0.825rem;
  color: var(--fg-subtle);
  flex-shrink: 0;
  width: 72px;
}
.archive-list a {
  color: var(--fg);
  border-bottom: 0;
  flex: 1;
  min-width: 0;
}
.archive-list a:hover { color: var(--accent); }

.search-box { margin: 24px 0 32px; }
.search-input {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: border-color 150ms ease;
}
.search-input:focus { outline: none; border-color: var(--accent); }

.search-status {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-subtle);
  margin-bottom: 16px;
}
.search-snippet {
  font-size: 0.875rem;
  color: var(--fg-muted);
  margin-top: 4px;
}
.search-snippet mark { background: var(--mark-bg); color: var(--fg); padding: 0 2px; }

.about h2 { font-size: 1.15rem; margin: 1.8em 0 0.5em; }
.about ul.kv {
  list-style: none;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}
.about ul.kv li {
  display: flex;
  gap: 16px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.about ul.kv li span:first-child {
  width: 100px;
  color: var(--fg-subtle);
  flex-shrink: 0;
}

.error-page { text-align: center; padding: 80px 0; }
.error-page .code {
  font-family: var(--font-mono);
  font-size: 4rem;
  color: var(--accent);
  letter-spacing: -0.04em;
  margin: 0 0 16px;
  font-weight: 600;
}
.error-page p { color: var(--fg-muted); margin: 0 0 24px; }

@media (max-width: 640px) {
  article h1 { font-size: 1.5rem; }
  .prose h2 { font-size: 1.2rem; }
  .archive-list li { flex-direction: column; gap: 2px; }
  .archive-list time { width: auto; }
}

/* 顶部阅读进度条 */
#reading-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0;
  background: var(--accent);
  z-index: 9999;
  transition: width 80ms linear;
  pointer-events: none;
}

/* 文章上一篇/下一篇导航 */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 48px 0 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.post-nav-prev, .post-nav-next { font-size: 0.9rem; }
.post-nav-next { text-align: right; }
.post-nav-label {
  display: block;
  color: var(--fg-muted);
  font-size: 0.75rem;
  margin-bottom: 4px;
}
.post-nav a { color: var(--fg); }
.post-nav a:hover { color: var(--accent); }

/* 相关文章 */
.related-posts { margin: 32px 0 16px; }
.related-posts h2 {
  font-size: 1rem;
  color: var(--fg-muted);
  font-weight: 500;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  margin-bottom: 12px;
}
.related-posts ul { list-style: none; padding: 0; margin: 0; }
.related-posts li { padding: 8px 0; border-bottom: 1px solid var(--border); }
.related-posts li:last-child { border-bottom: 0; }
.related-posts a { color: var(--fg); font-weight: 500; }
.related-posts a:hover { color: var(--accent); }
.related-summary {
  display: block;
  color: var(--fg-muted);
  font-size: 0.82rem;
  margin-top: 2px;
}

@media (max-width: 640px) {
  .post-nav { grid-template-columns: 1fr; }
  .post-nav-next { text-align: left; }
}

/* ========== 系列 / 整书 ========== */
.series-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
.series-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 18px 20px;
  background: var(--panel, #fff);
}
.series-card.is-book { border-left: 3px solid var(--accent); }
.series-card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.series-card-head h2 { margin: 0; font-size: 1.05rem; font-weight: 600; }
.series-card-head h2 a { color: var(--fg); border-bottom: 0; }
.series-card-head h2 a:hover { color: var(--accent); }
.series-desc { color: var(--fg-muted); margin: 6px 0 8px; font-size: 0.92rem; }
.series-meta { font-size: 0.8rem; color: var(--fg-subtle, var(--fg-muted)); font-family: var(--font-mono); }

.series-badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 2px 7px;
  background: var(--code-bg);
  color: var(--fg-muted);
  border-radius: 3px;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.series-badge.book { background: var(--accent); color: #fff; }

.series-hero { margin-bottom: 32px; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.series-hero.is-book { border-left: 3px solid var(--accent); padding-left: 16px; }
.series-hero-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.series-hero-head h1 { margin: 0; font-size: 1.5rem; letter-spacing: -0.015em; }
.series-progress { margin-top: 12px; }
.series-progress-bar {
  width: 100%; height: 6px; background: var(--code-bg); border-radius: 3px; overflow: hidden;
}
.series-progress-fill {
  display: block; height: 100%; background: var(--accent); transition: width .3s ease;
}
.series-progress-text { font-size: 0.82rem; color: var(--fg-muted); margin-top: 4px; font-family: var(--font-mono); }

.series-chapters { list-style: none; padding: 0; margin: 0; }
.series-chapter {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 12px 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
.series-chapter.is-read { opacity: 0.55; }
.series-chapter-no { font-family: var(--font-mono); font-size: 0.8rem; color: var(--fg-muted); }
.series-chapter-title { font-size: 1rem; font-weight: 500; color: var(--fg); border-bottom: 0; }
.series-chapter-title:hover { color: var(--accent); }
.series-chapter-summary { grid-column: 2 / 3; color: var(--fg-muted); font-size: 0.88rem; margin: 4px 0 0; }
.series-chapter-meta { font-size: 0.78rem; color: var(--fg-subtle, var(--fg-muted)); font-family: var(--font-mono); }

@media (max-width: 640px) {
  .series-chapter { grid-template-columns: 60px 1fr; }
  .series-chapter-meta { grid-column: 2 / 3; }
}

/* 文章页：series-hint 顶部条 + sidebar */
.series-hint {
  font-size: 0.85rem;
  color: var(--fg-muted);
  background: var(--code-bg);
  padding: 8px 12px;
  border-radius: 4px;
  border-left: 3px solid var(--accent);
  margin-bottom: 20px;
}
.series-hint a { color: var(--accent); }
.series-hint.is-book { border-left-width: 4px; }

.post-layout.has-series { position: relative; }

.series-sidebar {
  position: sticky;
  top: 20px;
  align-self: start;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  font-size: 0.86rem;
  border-right: 1px solid var(--border);
  padding-right: 16px;
}
.series-sidebar-title { margin: 0 0 12px; font-size: 0.9rem; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.series-sidebar-title a { color: var(--fg); border-bottom: 0; }
.series-sidebar-list { list-style: none; padding: 0; margin: 0; counter-reset: ch; }
.series-sidebar-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px;
  padding: 5px 0;
  align-items: baseline;
  line-height: 1.4;
}
.series-sidebar-list li .no { color: var(--fg-subtle, var(--fg-muted)); font-family: var(--font-mono); font-size: 0.75rem; white-space: nowrap; }
.series-sidebar-list li a { color: var(--fg-muted); border-bottom: 0; }
.series-sidebar-list li a:hover { color: var(--accent); }
.series-sidebar-list li.is-current a { color: var(--accent); font-weight: 600; }
.series-sidebar-list li.is-read a { text-decoration: line-through; color: var(--fg-subtle, var(--fg-muted)); }

/* 把 series-sidebar 放进原有 post-layout 的左列（grid-column 1）。 */
.post-layout > .series-sidebar { grid-column: 1; justify-self: end; max-width: 240px; }

/* 窄屏的系列目录折叠规则放在 mobile.css */

/* 短笔记样式 ----------------------------------------------------- */
.note-list > li { padding: 24px 0; }
.note-item { display: flex; flex-direction: column; gap: 6px; }
.note-time { font-family: var(--font-mono); font-size: 0.825rem; color: var(--fg-subtle, var(--fg-muted)); font-weight: 400; margin: 0; }
.note-time time { color: inherit; }
.note-body { color: var(--fg); line-height: 1.75; }
.note-body p { margin: 0.5em 0; }
.note-body p:first-child { margin-top: 0; }
.note-body p:last-child { margin-bottom: 0; }
.note-body img { max-height: 320px; max-width: 100%; height: auto; border-radius: 4px; }
.note-foot { display: flex; justify-content: flex-end; gap: 12px; align-items: center; }
.note-permalink { font-family: var(--font-mono); font-size: 0.75rem; color: var(--fg-subtle, var(--fg-muted)); border-bottom: 0; }
.note-permalink:hover { color: var(--accent); }
.note-reply { font-size: 0.78rem; color: var(--fg-muted); border-bottom: 0; }
.note-detail .note-item { max-width: 560px; margin: 0 auto; }