/* =====================================================================
   NotionNext simple 主题 · Jinja2 移植样式
   视觉规格来源：themes/simple/{style.js,config.js,components/*}（公开源码核对）
   主色 #dd3333 / 标题色 #276077 / 暗色背景 black / 菜单下划线动画
   ===================================================================== */
:root {
  --nb-primary: #dd3333;
  --nb-title: #276077;
  --nb-bg: #ffffff;
  --nb-text: #37352f;
  --nb-text-muted: #6b7280;
  --nb-border: #e5e7eb;
  --nb-card: #ffffff;
  --nb-code-bg: #f6f5f4;
  --nb-quote-bg: #f7f6f3;
  --nb-max-width: 810px;
  --nb-serif: "Noto Serif SC", "Songti SC", Georgia, serif;
  --nb-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}
html.dark {
  --nb-bg: #000000;
  --nb-card: #111111;
  --nb-text: #d1d5db;
  --nb-text-muted: #9ca3af;
  --nb-border: #1f2937;
  --nb-code-bg: #1a1a1a;
  --nb-quote-bg: #161616;
  --nb-title: #d1d5db;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--nb-bg); color: var(--nb-text);
  font-family: var(--nb-sans); line-height: 1.75; font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
html.dark body { background-color: #000; }

/* ---------------- Header（复刻 Header.js） ---------------- */
.simple-header { background: var(--nb-bg); text-align: center; padding: 1px 24px; position: relative; z-index: 10; }
.header-inner { display: inline-block; padding: 48px 0 24px; }
.header-link { display: block; }
.header-row { display: flex; gap: 24px; justify-content: center; align-items: center; }
.avatar-wrap { display: flex; justify-content: center; align-items: center; }
.avatar {
  border-radius: 50%; width: 100px; height: 100px; object-fit: cover;
  transform: rotate(0) scale(1);
  transition: transform .2s ease;               /* hover:rotate-45 hover:scale-125 duration-200 */
  cursor: pointer;
}
.header-link:hover .avatar { transform: rotate(45deg) scale(1.25); }
.header-text { display: flex; flex-direction: column; justify-content: center; text-align: left; }
.author-name {
  font-family: var(--nb-serif); font-size: 24px; font-weight: 600;
  padding: 8px 0; color: var(--nb-text);
  transition: transform .2s ease;
}
.header-link:hover .author-name { transform: scale(1.05); }
.logo-description { font-weight: 300; padding: 8px 0; color: var(--nb-text-muted); font-size: 14px; }
.social-row { display: flex; justify-content: center; gap: 16px; margin-top: 8px; }
.social-row a { color: var(--nb-text-muted); font-size: 13px; transition: color .15s; }
.social-row a:hover { color: var(--nb-primary); }
.dark-toggle { background: none; border: none; cursor: pointer; font-size: 16px; }
.site-description { margin-top: 16px; font-size: 12px; color: var(--nb-text-muted); }

/* 菜单：下划线 0→100% 动画（style.js .menu-link） */
.menu { display: flex; justify-content: center; gap: 24px; margin-top: 16px; }
.menu-link {
  text-decoration: none;
  background-image: linear-gradient(var(--nb-primary), var(--nb-primary));
  background-repeat: no-repeat;
  background-position: bottom center;
  background-size: 0 2px;
  transition: background-size 100ms ease-in-out;
  padding-bottom: 4px; font-size: 15px;
}
.menu-link:hover { background-size: 100% 2px; color: var(--nb-primary); cursor: pointer; }

/* ---------------- 布局 ---------------- */
.simple-main { max-width: var(--nb-max-width); margin: 0 auto; padding: 24px 16px 64px; }
.page-title { font-family: var(--nb-serif); color: var(--nb-title); }

/* ---------------- 文章列表（BlogItem.js：my-6 pb-12 border-b） ---------------- */
.blog-item { margin: 24px 0; padding-bottom: 48px; border-bottom: 1px solid var(--nb-border); display: flex; }
.blog-item:last-child { border-bottom: none; }
.blog-item-title { margin: 0 0 8px; font-size: 22px; line-height: 1.4; }
.blog-item-title a { color: var(--nb-title); transition: color .15s; }
html.dark .blog-item-title a { color: #d1d5db; }
.blog-item-title a:hover { color: var(--nb-primary); }
.item-meta { font-size: 13px; color: var(--nb-text-muted); }
.item-summary { margin: 8px 0 0; color: var(--nb-text-muted); font-size: 14px; }
.item-cover img { width: 224px; height: 100%; object-fit: cover; border-radius: 8px; margin-right: 12px; }
.article-info { flex: 1; }
.empty-list { text-align: center; color: var(--nb-text-muted); padding: 64px 0; }

/* ---------------- 归档 ---------------- */
.archive-section { margin-top: 48px; }
.archive-title { font-family: var(--nb-serif); color: var(--nb-title); }
.archive-year h3, .archive-year-title { color: var(--nb-title); font-size: 16px; }
.archive-list, .archive-year ul { list-style: none; padding: 0; margin: 8px 0 24px; }
.archive-list li, .archive-year ul li { padding: 4px 0; display: flex; gap: 12px; align-items: baseline; }
.archive-list li a:hover, .archive-year ul li a:hover { color: var(--nb-primary); }
.archive-date { color: var(--nb-text-muted); font-size: 13px; font-variant-numeric: tabular-nums; flex-shrink: 0; }

/* ---------------- 文章页布局（正文 + 右侧浮动 TOC） ---------------- */
.post-layout { display: grid; grid-template-columns: minmax(0, 1fr) 224px; gap: 40px; align-items: start; }
.post-layout.no-toc { grid-template-columns: minmax(0, 1fr); }
.preview-banner { background: #fff7ed; color: #b45309; border: 1px solid #fdba74; border-radius: 8px; padding: 8px 14px; font-size: 14px; margin-bottom: 16px; }
.post-header { margin-bottom: 24px; }
.post-title { font-family: var(--nb-serif); font-size: 34px; line-height: 1.3; margin: 0 0 12px; color: var(--nb-text); }
.post-meta { color: var(--nb-text-muted); font-size: 14px; display: flex; gap: 12px; align-items: center; }
.draft-tag { background: #fef3c7; color: #b45309; padding: 1px 8px; border-radius: 10px; font-size: 12px; }
.post-cover { width: 100%; border-radius: 12px; margin-bottom: 24px; }

/* ---------------- 正文块渲染（notion-body） ---------------- */
.notion-body { font-size: 16.5px; }
.nb-h2 { font-family: var(--nb-serif); font-size: 26px; margin: 40px 0 12px; scroll-margin-top: 80px; }
.nb-h3 { font-family: var(--nb-serif); font-size: 21px; margin: 28px 0 10px; scroll-margin-top: 80px; }
.nb-p { margin: 12px 0; }
.nb-quote {
  margin: 16px 0; padding: 12px 18px; background: var(--nb-quote-bg);
  border-left: 4px solid var(--nb-title); border-radius: 0 8px 8px 0; color: var(--nb-text-muted);
}
.nb-code {
  background: var(--nb-code-bg); border-radius: 10px; padding: 16px;
  overflow-x: auto; margin: 16px 0; font-size: 14px; line-height: 1.6;
}
.nb-code code { font-family: ui-monospace, "SF Mono", Consolas, Menlo, monospace; }
.nb-code code[data-lang]::before {
  content: attr(data-lang); display: block; color: var(--nb-text-muted);
  font-size: 12px; margin-bottom: 6px; text-transform: uppercase; letter-spacing: .05em;
}
.nb-list { padding-left: 26px; margin: 12px 0; }
.nb-list li { margin: 4px 0; }
.nb-image { margin: 20px 0; text-align: center; }
.nb-image img { max-width: 100%; border-radius: 10px; }
.nb-image figcaption { color: var(--nb-text-muted); font-size: 13px; margin-top: 6px; }

/* ---------------- TOC（Catalog 复刻：滚动高亮） ---------------- */
.post-aside { position: sticky; top: 32px; max-height: calc(100vh - 64px); overflow-y: auto; }
.catalog { font-size: 13px; }
.catalog-title { font-weight: 600; color: var(--nb-text-muted); margin-bottom: 8px; letter-spacing: .05em; }
.catalog ul { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--nb-border); }
.toc-item a { display: block; padding: 3px 0 3px 12px; color: var(--nb-text-muted); border-left: 2px solid transparent; margin-left: -2px; }
.toc-level-3 a { padding-left: 26px; }
.toc-item a:hover { color: var(--nb-text); }
.toc-item.active a { color: var(--nb-primary); border-left-color: var(--nb-primary); }
.toc-mobile { display: none; background: var(--nb-quote-bg); border-radius: 8px; padding: 8px 16px; margin-bottom: 16px; font-size: 14px; }
.toc-mobile ul { list-style: none; padding-left: 8px; }
.toc-mobile .toc-level-3 { padding-left: 14px; }

/* ---------------- 上一篇/下一篇 + 推荐（ArticleAround / RecommendPosts） ---------------- */
.article-around { display: flex; justify-content: space-between; gap: 12px; margin: 48px 0 24px; }
.around-link {
  flex: 1; max-width: 48%; border: 1px solid var(--nb-border); border-radius: 10px;
  padding: 12px 16px; font-size: 14px; transition: border-color .15s, color .15s;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.around-link:hover { border-color: var(--nb-primary); color: var(--nb-primary); }
.around-next { text-align: right; }
.recommend { border-top: 1px solid var(--nb-border); padding-top: 24px; }
.recommend-title { font-family: var(--nb-serif); color: var(--nb-title); }
.recommend ul { list-style: none; padding: 0; margin: 0; }
.recommend li { display: flex; justify-content: space-between; padding: 6px 0; }
.recommend li a:hover { color: var(--nb-primary); }

/* ---------------- Footer ---------------- */
.simple-footer { text-align: center; color: var(--nb-text-muted); font-size: 13px; padding: 32px 16px; border-top: 1px solid var(--nb-border); }
.footer-links a:hover { color: var(--nb-primary); }

/* ---------------- 返回顶部 ---------------- */
#jump-to-top {
  position: fixed; right: 20px; bottom: 24px; width: 40px; height: 40px;
  border-radius: 50%; border: 1px solid var(--nb-border); background: var(--nb-card);
  color: var(--nb-text); cursor: pointer; font-size: 16px; opacity: 0; pointer-events: none;
  transition: opacity .2s; box-shadow: 0 2px 10px rgba(0,0,0,.08); z-index: 50;
}
#jump-to-top.show { opacity: 1; pointer-events: auto; }

/* ---------------- 响应式（<768px：单栏，TOC 折叠进文内） ---------------- */
@media (max-width: 768px) {
  .post-layout { grid-template-columns: minmax(0, 1fr); }
  .post-aside { display: none; }
  .toc-mobile { display: block; }
  .post-title { font-size: 26px; }
  .blog-item { flex-direction: column; }
  .item-cover img { width: 100%; height: 160px; margin: 0 0 10px; }
  .header-row { flex-direction: column; gap: 12px; }
  .header-text { text-align: center; }
  .around-link { max-width: none; }
}

/* ---------------- 链接块 ---------------- */
.nb-link {
  display: flex; flex-direction: column; gap: 2px;
  margin: 14px 0; padding: 12px 16px;
  border: 1px solid var(--nb-border); border-radius: 10px;
  transition: border-color .15s, background .15s;
}
.nb-link:hover { border-color: var(--nb-primary); background: var(--nb-quote-bg); }
.nb-link-title { color: var(--nb-title); font-weight: 500; }
html.dark .nb-link-title { color: #d1d5db; }
.nb-link-url { color: var(--nb-text-muted); font-size: 13px; }
.nb-link-invalid { cursor: default; }

/* ---------------- 文章元信息（作者行） ---------------- */
.meta-avatar, .item-avatar {
  width: 22px; height: 22px; border-radius: 50%; object-fit: cover;
  vertical-align: -6px; margin-right: 4px; border: 1px solid var(--nb-border);
}
.item-avatar { width: 18px; height: 18px; vertical-align: -4px; }
.meta-author { color: var(--nb-text); }

/* ---------------- 评论区 ---------------- */
.nb-comments { margin-top: 48px; border-top: 1px solid var(--nb-border); padding-top: 24px; }
.nb-comments-title { font-family: var(--nb-serif); color: var(--nb-title); }
.nb-comment { display: flex; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--nb-border); }
.nb-comment-avatar { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.nb-comment-avatar-ph { background: var(--nb-code-bg); display: inline-block; }
.nb-comment-body { flex: 1; }
.nb-comment-head { font-size: 14px; display: flex; gap: 8px; align-items: baseline; }
.nb-comment-time { color: var(--nb-text-muted); font-size: 12px; }
.nb-comment-content { margin-top: 4px; white-space: pre-wrap; word-break: break-word; }
.nb-comment-del { border: none; background: none; color: var(--nb-primary); cursor: pointer; font-size: 12px; }
.nb-comment-del:hover { color: var(--nb-primary); opacity: .8; }
.nb-comment-hint { color: var(--nb-text-muted); font-size: 14px; padding: 8px 0; }
.nb-comment-form { margin-top: 16px; }
.nb-comment-form textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--nb-border);
  border-radius: 8px; font-family: inherit; font-size: 14px; background: var(--nb-card);
  color: var(--nb-text); resize: vertical;
}
.nb-comment-btn {
  margin-top: 8px; padding: 7px 18px; border: none; border-radius: 8px;
  background: var(--nb-primary); color: #fff; cursor: pointer; font-size: 14px;
}
.nb-comment-btn:hover { opacity: .9; }
.nb-comment-login { color: var(--nb-primary); font-size: 14px; }

/* ---------------- 博客广场（GitHub Trending 风格） ---------------- */
.plaza-hero { text-align: center; padding: 40px 0 28px; }
.plaza-title { font-family: var(--nb-serif); font-size: 36px; margin: 0 0 10px; color: var(--nb-text); }
.plaza-subtitle { color: var(--nb-text-muted); font-size: 15px; margin: 0; }
.plaza-card {
  background: var(--nb-card); border: 1px solid var(--nb-border); border-radius: 10px;
  overflow: hidden; margin-bottom: 48px;
}
.plaza-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 18px; background: var(--nb-quote-bg); font-size: 14px;
}
.plaza-tab {
  padding: 5px 14px; border-radius: 6px; color: var(--nb-text-muted);
}
.plaza-tab-active {
  background: var(--nb-title); color: #fff; font-weight: 500;
}
html.dark .plaza-tab-active { color: #000; }
.plaza-toolbar-right { color: var(--nb-text-muted); font-size: 13px; }
.plaza-list { list-style: none; margin: 0; padding: 0; }
.plaza-item {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px 18px; border-top: 1px solid var(--nb-border);
}
.plaza-item:first-child { border-top: none; }
.plaza-item-main { flex: 1; min-width: 0; }
.plaza-item-title { margin: 0 0 6px; font-size: 19px; line-height: 1.4; display: flex; align-items: center; gap: 8px; }
.plaza-item-avatar { width: 22px; height: 22px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.plaza-item-title a { color: var(--nb-title); }
html.dark .plaza-item-title a { color: #58a6ff; }
.plaza-item-title a:hover { text-decoration: underline; }
.plaza-item-desc { margin: 0 0 8px; color: var(--nb-text-muted); font-size: 14px; }
.plaza-item-meta { font-size: 13px; color: var(--nb-text-muted); display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.plaza-meta-author { color: var(--nb-text-muted); }
.plaza-meta-author:hover { color: var(--nb-primary); }
.plaza-meta-dot { opacity: .6; }
.plaza-item-side { flex-shrink: 0; align-self: center; }
.plaza-read-btn {
  display: inline-block; padding: 6px 16px; border: 1px solid var(--nb-border);
  border-radius: 6px; font-size: 13px; color: var(--nb-text);
  transition: border-color .15s, color .15s;
}
.plaza-read-btn:hover { border-color: var(--nb-title); color: var(--nb-title); }
.plaza-empty { padding: 48px 20px; text-align: center; color: var(--nb-text-muted); }

/* 用户博客前端顶栏 */
.user-home-bar { display: flex; align-items: center; gap: 16px; padding: 4px 0 16px; }
.user-home-label { color: var(--nb-text-muted); font-size: 14px; }
.flex1 { flex: 1; }
.user-manage-btn {
  padding: 4px 14px; border: 1px solid var(--nb-border); border-radius: 6px;
  background-size: 0 2px;
}
.user-manage-btn:hover { background-size: 100% 2px; }

@media (max-width: 640px) {
  .plaza-title { font-size: 26px; }
  .plaza-item { flex-direction: row; padding: 16px 14px; }
  .plaza-read-btn { padding: 5px 12px; }
}

/* ---------------- 博客广场：独立极简顶栏（GitHub Trending 式） ---------------- */
.plaza-nav { border-bottom: 1px solid var(--nb-border); background: var(--nb-card); }
.plaza-nav-inner { max-width: 860px; margin: 0 auto; padding: 0 16px;
  display: flex; align-items: center; height: 52px; gap: 14px; }
.plaza-brand { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 15px; }
.plaza-nav-link { color: var(--nb-text-muted); font-size: 14px; }
.plaza-nav-link:hover { color: var(--nb-primary); }
.plaza-wrap { max-width: 860px; margin: 0 auto; padding: 0 16px 64px; }

/* 页脚沉底：内容不足时页脚贴底 */
body { display: flex; flex-direction: column; min-height: 100vh; }
body > main { flex: 1 0 auto; }
body > footer { flex-shrink: 0; margin-top: auto; }