/* ==========================================================================
   ShareHub · 博客
   只在 /blog.html 与 /post.html 引用；类名统一 blog-* / post-*，
   不与 app.css 里任何既有类重名（项目里踩过"同名类互相污染"的坑）。
   ========================================================================== */

/* ---------------------------------------------------------------- 列表页 */

.blog-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 26px;
  flex-wrap: wrap;
  padding-bottom: 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-soft);
}

.blog-kicker {
  margin: 0 0 8px;
  color: var(--acc-text);
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.blog-head h1 {
  margin: 0 0 10px;
  font-size: clamp(1.95rem, 3.6vw, 2.7rem);
}

.blog-lead {
  max-width: 56ch;
  margin: 0;
  color: var(--text-dim);
  font-size: .9rem;
  line-height: 1.8;
}

.blog-tally {
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: var(--muted);
  font-size: .78rem;
  white-space: nowrap;
}
.blog-tally strong {
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1;
}

.blog-tools {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 8px;
}

.blog-tagbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.blog-tagbar .lbl {
  margin-right: 4px;
  color: var(--muted);
  font-size: .7rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.blog-tagbar button {
  height: 26px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text-dim);
  font: inherit;
  font-size: .76rem;
  cursor: pointer;
  transition: color .14s, border-color .14s, background-color .14s;
}
.blog-tagbar button:hover { color: var(--text); border-color: var(--border-strong); }
.blog-tagbar button.on {
  border-color: var(--acc-line);
  background: var(--acc-soft);
  color: var(--acc-text);
}
.blog-tagbar button .n { margin-left: 4px; color: var(--muted); font-variant-numeric: tabular-nums; }

/* 编辑部式的行列表：日期成列，标题用衬线，鼠标悬停时出现箭头 */

.post-list {
  margin-top: 10px;
  border-top: 1px solid var(--border-soft);
}

.post-row {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr) 22px;
  gap: 22px;
  align-items: start;
  padding: 26px 10px 26px 4px;
  border-bottom: 1px solid var(--border-soft);
  color: inherit;
  transition: background-color .16s, padding-left .16s;
}
.post-row:hover {
  background: color-mix(in srgb, var(--card) 60%, transparent);
  color: inherit;
  padding-left: 12px;
}
.post-row.pinned { box-shadow: inset 2px 0 0 var(--acc); }

.post-row-date {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: 4px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .06em;
  text-align: right;
}
.post-row-date strong {
  font-family: var(--serif);
  font-size: 1.18rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0;
  line-height: 1.1;
}

.post-row-body { min-width: 0; }
.post-row-body h2 {
  margin: 0 0 7px;
  font-family: var(--serif);
  font-size: clamp(1.06rem, 1.5vw, 1.26rem);
  font-weight: 600;
  line-height: 1.36;
  letter-spacing: -.012em;
  word-break: break-word;
}
.post-row:hover .post-row-body h2 { color: var(--acc-text); }
.post-row-sum {
  margin: 0 0 10px;
  max-width: 70ch;
  color: var(--text-dim);
  font-size: .855rem;
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-row-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: .72rem;
  font-variant-numeric: tabular-nums;
}
.post-row-meta .sep { color: var(--border-strong); }

.post-row-go {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 6px;
  border: 1px solid transparent;
  border-radius: 50%;
  color: var(--muted);
  transition: color .16s, border-color .16s, transform .16s;
}
.post-row:hover .post-row-go {
  border-color: var(--acc-line);
  color: var(--acc-text);
  transform: translateX(2px);
}

.post-pin {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 7px;
  border: 1px solid var(--acc-line);
  border-radius: 999px;
  background: var(--acc-soft);
  color: var(--acc-text);
  font-family: var(--sans);
  font-size: .62rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  vertical-align: 2px;
}

.blog-empty {
  padding: 54px 20px;
  border: 1px dashed var(--border);
  border-radius: var(--r-md);
  text-align: center;
}
.blog-empty h3 { margin-bottom: 6px; }
.blog-empty p { margin: 0; color: var(--muted); font-size: .84rem; }

/* ---------------------------------------------------------------- 文章页 */

.post-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.post-hero {
  padding-bottom: 28px;
  margin-bottom: 34px;
  border-bottom: 1px solid var(--border-soft);
}
.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-bottom: 14px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .04em;
}
.post-meta .sep { color: var(--border-strong); }

.post-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(1.85rem, 3.4vw, 2.55rem);
  line-height: 1.22;
  letter-spacing: -.022em;
  word-break: break-word;
}

.post-deck {
  max-width: 62ch;
  margin: 0 0 16px;
  color: var(--text-dim);
  font-size: .97rem;
  line-height: 1.8;
}

.post-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.post-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 196px;
  gap: 46px;
  align-items: start;
}

/* 目录：宽屏时吸附在右侧，窄屏直接收起（正文本身有标题层级，不影响阅读） */
.post-aside {
  position: sticky;
  top: 78px;
  padding-left: 15px;
  border-left: 1px solid var(--border-soft);
}
.post-aside-title {
  margin: 0 0 9px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .64rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.post-aside a {
  display: block;
  padding: 3px 0;
  color: var(--muted);
  font-size: .78rem;
  line-height: 1.5;
  border-left: 2px solid transparent;
  padding-left: 0;
  transition: color .14s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.post-aside a:hover,
.post-aside a.on { color: var(--acc-text); }
.post-aside a.d1 { padding-left: 11px; font-size: .75rem; }
.post-aside a.d2 { padding-left: 22px; font-size: .72rem; color: color-mix(in srgb, var(--muted) 88%, transparent); }

/* 正文排版：唯一需要"像杂志"的地方 */
.post-prose {
  min-width: 0;
  color: var(--text-dim);
  font-size: .95rem;
  line-height: 1.86;
}
.post-prose > *:first-child { margin-top: 0; }
.post-prose > *:last-child { margin-bottom: 0; }

.post-prose h2,
.post-prose h3,
.post-prose h4 {
  color: var(--text);
  scroll-margin-top: 76px;
}
/* 正文的 # 会渲染成 h2（h1 留给文章标题），## 才是最常见的分节标题，
   所以分隔线和衬线字号放在 h3 上，h2 只是"比章节再大一号" */
.post-prose h2 {
  margin: 2.2em 0 .6em;
  font-family: var(--serif);
  font-size: 1.46rem;
  font-weight: 600;
  letter-spacing: -.016em;
}
.post-prose h3 {
  margin: 2em 0 .55em;
  padding-top: .9em;
  border-top: 1px solid var(--border-soft);
  font-family: var(--serif);
  font-size: 1.24rem;
  font-weight: 600;
  letter-spacing: -.012em;
}
.post-prose h4 {
  margin: 1.7em 0 .4em;
  font-size: .97rem;
  font-weight: 600;
  color: var(--text-dim);
}

.post-prose p { margin: 0 0 1.15em; }

.post-prose a {
  color: var(--acc-text);
  border-bottom: 1px solid var(--acc-line);
  word-break: break-word;
}
.post-prose a:hover { color: var(--acc-hi); border-bottom-color: var(--acc-hi); }

.post-prose strong { color: var(--text); font-weight: 600; }

.post-prose ul,
.post-prose ol { margin: 0 0 1.2em; padding-left: 1.3em; }
.post-prose li { margin: .34em 0; }
.post-prose li::marker { color: var(--acc-line); }
.post-prose li > ul,
.post-prose li > ol { margin: .34em 0 .2em; }

.post-prose blockquote {
  margin: 1.5em 0;
  padding: 2px 0 2px 18px;
  border-left: 2px solid var(--acc-line);
  color: var(--text-dim);
}
.post-prose blockquote p { margin: 0 0 .55em; }
.post-prose blockquote p:last-child { margin: 0; }

.post-prose img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.6em auto;
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
}

.post-prose hr {
  margin: 2.4em 0;
  border: 0;
  height: 1px;
  background: var(--border-soft);
}

.post-prose code {
  padding: .12em .38em;
  border-radius: var(--r-xs);
  background: var(--card-2);
  font-size: .85em;
}

.post-prose pre {
  position: relative;
  margin: 1.5em 0;
  max-height: 520px;
  padding: 16px 18px;
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  background: var(--bg-soft);
  overflow: auto;
  font-size: .84rem;
  line-height: 1.72;
}
.post-prose pre[data-lang]::before {
  content: attr(data-lang);
  position: absolute;
  top: 7px;
  right: 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  pointer-events: none;
}
.post-prose pre code {
  padding: 0;
  background: none;
  font-size: 1em;
  color: var(--text-dim);
}

.post-prose .table-scroll {
  margin: 1.5em 0;
  overflow-x: auto;
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
}
.post-prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: .84rem;
}
.post-prose th,
.post-prose td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-soft);
  text-align: left;
  vertical-align: top;
}
.post-prose th {
  background: var(--card-2);
  color: var(--text-dim);
  font-weight: 600;
  white-space: nowrap;
}
.post-prose tbody tr:last-child td { border-bottom: 0; }

.post-foot {
  margin-top: 52px;
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
}

.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 18px;
}
.post-nav a {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--card);
  color: inherit;
  transition: border-color .15s, background-color .15s;
}
.post-nav a:hover { border-color: var(--acc-line); background: var(--card-2); color: inherit; }
.post-nav .lbl {
  color: var(--muted);
  font-family: var(--mono);
  font-size: .64rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.post-nav .ttl {
  font-family: var(--serif);
  font-size: .93rem;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.post-nav a.next { text-align: right; align-items: flex-end; }
.post-nav .ph { border-style: dashed; opacity: .5; pointer-events: none; }

/* ---------------------------------------------------------------- 后台编辑器 */

.post-editor-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 236px;
  gap: 18px;
  align-items: start;
}

.post-editor textarea.code {
  min-height: 430px;
  font-family: var(--mono);
  font-size: .8rem;
  line-height: 1.75;
  tab-size: 2;
}

.post-editor-side .field:last-of-type { margin-bottom: 0; }

.md-preview {
  max-height: 560px;
  padding: 16px 18px;
  overflow: auto;
  border: 1px dashed var(--border);
  border-radius: var(--r-md);
  background: var(--bg-soft);
}
.md-preview:empty::before {
  content: 'Nothing to preview yet — start typing on the left.';
  color: var(--muted);
  font-size: .8rem;
}

.post-editor-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-soft);
}
.post-hint { color: var(--muted); font-size: .74rem; }

/* ---------------------------------------------------------------- 响应式 */

@media (max-width: 900px) {
  .post-layout { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .post-aside { display: none; }
  .post-editor-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 640px) {
  .post-row { grid-template-columns: 58px minmax(0, 1fr); gap: 14px; padding: 20px 4px; }
  .post-row-go { display: none; }
  .post-row-date strong { font-size: 1.02rem; }
  .post-nav { grid-template-columns: 1fr; }
  .blog-head { gap: 12px; }
  .blog-tally strong { font-size: 1.35rem; }
  .post-prose { font-size: .92rem; }
}