/* ============================================================================
   blog 主题样式（深色 · 紫青渐变 · 开发者博客风）
   参考版式：深底 #080a0b + 紫色强调 #8b5cf6 + 青紫渐变描边按钮、
   毛玻璃吸顶头部、prose 长文排版、FAQ 手风琴、三列文章卡片。

   设计令牌集中在 :root，改配色只需要改这一段。
   稳健性约定（务必保留）：图片失败/空图有占位、长词可断行、窄屏不横向溢出、
   `@supports not (aspect-ratio)` 兜底、`.lang-nav` 可换行。
   ============================================================================ */

:root{
  --bg:#080a0b;
  --bg-soft:#0d1012;
  --card:#161616;
  --card-2:#1a1a1a;
  --panel:rgba(255,255,255,.03);
  --panel-2:rgba(255,255,255,.05);
  --border:rgba(255,255,255,.10);
  --border-soft:rgba(255,255,255,.06);
  --text:#e5e5e5;
  --text-2:#d1d5db;
  --muted:#a1a1aa;
  --muted-2:#8b949e;
  --accent:#8b5cf6;
  --accent-2:#7c3aed;
  --accent-3:#a78bfa;
  --accent-soft:rgba(139,92,246,.14);
  --grad:linear-gradient(135deg,#8b5cf6,#7c3aed);
  --grad-2:linear-gradient(90deg,#00e0ee,#ad00fe);
  --grad-title:linear-gradient(160deg,#fff 45%,rgba(255,255,255,.55) 85%);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 20px 40px rgba(0,0,0,.35);
  --shadow-sm:0 10px 24px rgba(0,0,0,.25);
  --primary:#8b5cf6;              /* 供共享组件（阅读进度/目录）复用 */
  --header-bg:rgba(8,10,11,.72);
  --footer-bg:#0b0d0e;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans SC",Helvetica,Arial,sans-serif;
  font-size:16.5px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease}
a:hover{color:var(--accent-3)}
h1,h2,h3,h4{color:#fff;line-height:1.3;margin:0 0 .5em;letter-spacing:-.01em}
p{margin:0 0 1.25em}
ul,ol{margin:0 0 1.25em;padding-left:1.4em}
li{margin-bottom:.4em}
blockquote{margin:1.75rem 0;padding:1.4rem 1.75rem;background:var(--accent-soft);border-left:4px solid var(--accent);border-radius:0 12px 12px 0;color:var(--text-2);position:relative}
hr{border:none;height:2px;margin:2.5rem 0;background:linear-gradient(90deg,transparent,var(--accent),transparent)}
.muted{color:var(--muted)}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.break-all{overflow-wrap:anywhere;word-break:break-all}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:100px;
  border:1px solid var(--border);background:var(--panel);color:var(--text);cursor:pointer;font-size:.95rem;font-weight:600;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease}
.btn:hover{color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-sm);text-decoration:none}
.btn-primary{background:var(--grad);border-color:transparent;color:#fff}
.btn-primary:hover{box-shadow:0 10px 25px rgba(139,92,246,.35)}
.btn-sm{padding:7px 16px;font-size:.88rem}
/* 渐变描边胶囊（参考版式里的 gradient-border） */
.btn-grad{position:relative;display:inline-flex;align-items:center;justify-content:center;padding:12px 26px;height:48px;
  border-radius:100px;color:#fff;font-weight:600;background:transparent;overflow:hidden;isolation:isolate}
.btn-grad::before{content:"";position:absolute;inset:0;border-radius:100px;padding:2px;
  background:var(--grad-2);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.btn-grad::after{content:"";position:absolute;inset:0;border-radius:100px;background:var(--grad-2);
  transform:translateX(-101%);transition:transform .35s ease;z-index:-1}
.btn-grad:hover{color:#fff;text-decoration:none}
.btn-grad:hover::after{transform:translateX(0)}

/* ---------- 吸顶毛玻璃头部 ---------- */
.blog-header{position:sticky;top:0;z-index:50;background:var(--header-bg);
  -webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);border-bottom:1px solid var(--border-soft)}
.header-inner{display:flex;align-items:center;gap:18px;min-height:68px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:#fff;font-size:1.12rem;flex:0 0 auto}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800}
.logo-text{white-space:nowrap}
.slogan{color:var(--muted);font-size:.85rem;flex:1 1 180px;min-width:0;overflow-wrap:anywhere}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.main-nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;min-width:0}
.main-nav a{color:var(--text);font-size:.95rem;font-weight:500}
.main-nav a:hover{color:#fff;opacity:.85}
.nav-strip{border-top:1px solid var(--border-soft);padding:8px 0}
.lang-nav{display:flex;gap:8px;flex-wrap:wrap;min-width:0;max-width:100%}
.lang-nav a{padding:3px 11px;border-radius:100px;background:var(--panel);color:var(--muted);font-size:.8rem;white-space:nowrap}
.lang-nav a:hover{color:#fff;background:var(--panel-2)}
.lang-nav a.is-cur{background:var(--grad);color:#fff}
/* 移动端汉堡（纯 CSS，无 JS 依赖） */
.nav-toggle{position:absolute;opacity:0;pointer-events:none}
.nav-burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--border);align-items:center;justify-content:center;cursor:pointer;background:var(--panel)}
.nav-burger span{display:block;width:18px;height:2px;background:#fff;position:relative}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}

/* ---------- 首页 hero / 目录条 ---------- */
.blog-intro{padding:56px 0 24px;max-width:56rem}
.blog-intro-title{font-size:clamp(2rem,4.4vw,3rem);font-weight:800;margin:0 0 12px;
  background:var(--grad-title);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.blog-intro-sub{color:var(--muted);font-size:1.06rem;margin:0 0 14px;max-width:48rem}
.blog-intro-stat{display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:.9rem;margin:0}
.blog-intro-stat b{color:#fff}
.blog-intro-updated{color:var(--muted-2)}
.blog-cat-index{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:8px 0 30px}
.blog-cat-index-label{color:var(--muted-2);font-size:.82rem;letter-spacing:.04em;text-transform:uppercase}
.blog-cat-index a{padding:7px 15px;border-radius:100px;background:var(--panel);border:1px solid var(--border-soft);color:var(--text-2);font-size:.88rem}
.blog-cat-index a i{color:var(--muted-2);font-style:normal;margin-left:6px;font-size:.78rem}
.blog-cat-index a:hover,.blog-cat-index a.is-cur{background:var(--accent-soft);border-color:rgba(139,92,246,.4);color:#fff}

/* ---------- 文章卡片网格（参考版式的 Recent blog posts） ---------- */
.blog-grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));margin:0 0 34px}
.post-card{background:var(--card);border:1px solid var(--border-soft);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;min-width:0;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(139,92,246,.35)}
.post-card-media{position:relative;display:block;height:180px;background:#111;overflow:hidden}
.post-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-card-media img{transform:scale(1.05)}
.post-card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;min-width:0}
.post-card-date{color:#81a1c1;font-size:.78rem;letter-spacing:.03em;margin:0}
.post-card-title-row{display:flex;align-items:flex-start;gap:10px}
.post-card-title{font-size:1.06rem;font-weight:700;line-height:1.45;margin:0;color:#e6edf3;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card-arrow{color:var(--muted-2);flex:0 0 auto;transition:transform .2s ease,color .2s ease}
.post-card:hover .post-card-arrow{color:#fff;transform:translate(2px,-2px)}
.post-card-arrow svg{width:18px;height:18px}
.post-card-desc{color:#adb5bd;font-size:.9rem;line-height:1.65;margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-card-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}
.tag{display:inline-block;padding:4px 12px;border-radius:100px;font-size:.76rem;font-weight:600;
  background:#30363d;border:1px solid #414a53;color:#c9d1d9}
.tag:hover{background:#3e4650;color:#fff}
.tag-cat{background:var(--grad);border-color:transparent;color:#fff}
.tag-violet{background:var(--accent);border-color:transparent;color:#fff}
.tag-cyan{background:#06b6d4;border-color:transparent;color:#04242b}
.tag-green{background:#10b981;border-color:transparent;color:#052e20}
.tag-amber{background:#f59e0b;border-color:transparent;color:#111}
.tag-pink{background:#ec4899;border-color:transparent;color:#fff}
.tag-indigo{background:#6366f1;border-color:transparent;color:#fff}

/* 单栏时间线（列表页可选：.blog-list） */
.blog-list{list-style:none;padding:0;margin:0 0 30px}
.blog-item{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--border-soft);align-items:flex-start}
.blog-item-body{min-width:0;flex:1 1 auto}
.blog-item-title{font-size:1.2rem;margin:.2em 0 .3em;font-weight:700;overflow-wrap:anywhere}
.blog-item-desc{color:var(--muted);font-size:.94rem;margin:0 0 .5em}
.blog-item-meta{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted-2);font-size:.8rem}
.blog-item-cat{color:var(--accent-3);font-weight:600}
.blog-item-thumb{width:150px;height:100px;flex:0 0 auto;border-radius:12px;overflow:hidden;background:#111;display:block}
.blog-item-thumb img{width:100%;height:100%;object-fit:cover}
.blog-item-views{color:var(--muted-2)}

/* ---------- 文章页 ---------- */
.blog-post{padding:34px 0 70px;position:relative}
.crumbs,.breadcrumb{display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-size:.88rem;margin:0 0 22px;color:var(--muted);min-width:0;overflow-wrap:anywhere}
.breadcrumb a{color:var(--accent)}
.breadcrumb-sep{color:#4b5563}
.blog-post .post-head{margin-bottom:26px}
.post-cats{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.post-title{font-size:clamp(1.9rem,4.2vw,3rem);font-weight:800;line-height:1.2;margin:0 0 20px;
  background:var(--grad-title);-webkit-background-clip:text;background-clip:text;color:#fff;-webkit-text-fill-color:transparent;
  overflow-wrap:anywhere}
.post-byline{display:flex;flex-wrap:wrap;gap:18px;align-items:center;margin:0 0 20px;color:var(--muted);font-size:.92rem}
.post-byline>*{display:inline-flex;align-items:center;gap:7px}
.post-byline svg{width:17px;height:17px;color:var(--accent);flex:0 0 auto}
.post-byline-author a{color:var(--text);font-weight:600}
.post-byline-views,.post-byline-read{color:var(--muted)}
.post-thumb{margin:28px 0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#111}
.post-thumb img{width:100%;max-height:520px;object-fit:cover}
.post-thumb-cap{padding:14px 22px;background:rgba(0,0,0,.72);color:var(--text-2);font-size:.88rem;font-style:italic;text-align:center;border-top:1px solid var(--border-soft)}

/* 正文（prose） */
.post-content{color:var(--text);font-size:1.06rem;line-height:1.85;overflow-wrap:anywhere;max-width:52rem}
.post-content>p{color:var(--text-2)}
.post-content h2{font-size:1.7rem;margin:2.4rem 0 1rem;font-weight:700}
.post-content h3{font-size:1.34rem;margin:2rem 0 .9rem;font-weight:700}
.post-content h4{font-size:1.12rem;margin:1.6rem 0 .7rem}
.post-content a{border-bottom:1px solid transparent;font-weight:500}
.post-content a:hover{border-bottom-color:var(--accent-3);color:var(--accent-3)}
.post-content img{border-radius:12px;box-shadow:var(--shadow-sm);margin:1.8rem 0;max-width:100%}
.post-content ul li::marker,.post-content ol li::marker{color:var(--accent)}
.post-content blockquote::before{content:"\\201C";position:absolute;left:18px;top:-6px;font-size:3.4rem;color:var(--accent);opacity:.28}
.post-content code{background:rgba(139,92,246,.18);color:#c4b5fd;border-radius:6px;padding:.16em .42em;font-size:.9em;font-weight:600;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.post-content pre{background:#111214;border:1px solid var(--border);border-radius:12px;padding:1.2rem;overflow-x:auto;margin:1.8rem 0}
.post-content pre code{background:transparent;color:var(--text);padding:0;font-weight:400;display:block;white-space:pre}
.post-content table{width:100%;border-collapse:collapse;border-radius:12px;overflow:hidden;margin:1.8rem 0;background:var(--panel)}
.post-content thead{background:var(--grad)}
.post-content th{color:#fff;font-size:.86rem;letter-spacing:.03em;text-transform:uppercase;padding:.9rem 1.1rem;text-align:left}
.post-content td{border-bottom:1px solid var(--border-soft);color:var(--text-2);padding:.85rem 1.1rem}
.post-content tbody tr:hover{background:var(--accent-soft)}
.post-content tbody tr:last-child td{border-bottom:none}
/* 宽表格窄屏可横向滚动（不撑破版式） */
.post-content>table{display:block;overflow-x:auto}

/* 文章目录（content_tools 输出） */
.article-toc{background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--radius);padding:18px 22px;margin:26px 0}
.article-toc-title{font-weight:700;color:#fff;margin-bottom:10px;font-size:.95rem;letter-spacing:.02em}
.article-toc ol{margin:0;padding-left:1.3em;line-height:1.95}
.article-toc li.lv3{margin-left:1em;font-size:.92em;opacity:.86}
.article-toc a{color:var(--text-2);border-bottom:none}
.article-toc a:hover{color:var(--accent-3)}

/* 标签、话题 */
.post-topics{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:26px 0 0;padding-top:20px;border-top:1px solid var(--border-soft)}
.post-topics-label{color:var(--muted-2);font-size:.82rem;letter-spacing:.04em;text-transform:uppercase;margin-right:4px}
.topic-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:100px;background:var(--panel);border:1px solid var(--border-soft);color:var(--text-2);font-size:.85rem;max-width:100%;overflow-wrap:anywhere}
.topic-chip i{font-style:normal;color:var(--muted-2);font-size:.75rem}
.topic-chip:hover{background:var(--accent-soft);border-color:rgba(139,92,246,.4);color:#fff}
.topic-chip.is-flat{opacity:.65}
.topic-cloud{display:flex;gap:9px;flex-wrap:wrap}
.topic-cloud-center{justify-content:center}

/* 作者卡 / 上下篇 / 相关文章 */
.blog-author-box{margin:38px 0;padding:24px;background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--radius)}
.blog-block-title{font-size:1.05rem;margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid var(--border-soft)}
.blog-author-box-row{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap}
.blog-author-box-body{min-width:0}
.blog-author-box-name{font-weight:700;color:#fff;margin:0 0 4px}
.blog-author-box-bio{color:var(--muted);font-size:.92rem;margin:0 0 6px}
.blog-author-box-contact,.blog-author-box-more{font-size:.9rem;margin:4px 0 0}
.blog-avatar{width:44px;height:44px;border-radius:50%;object-fit:cover;border:2px solid var(--accent);background:var(--accent-soft);display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff}
.blog-avatar-lg{width:64px;height:64px;font-size:1.2rem}
.post-nav{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin:30px 0}
.post-nav-item{display:block;padding:18px;background:var(--card);border:1px solid var(--border-soft);border-radius:var(--radius);transition:transform .2s ease,border-color .2s ease}
.post-nav-item:hover{transform:translateY(-3px);border-color:rgba(139,92,246,.4)}
.post-nav-label{display:block;color:var(--muted-2);font-size:.78rem;letter-spacing:.03em;margin-bottom:6px}
.post-nav-title{font-weight:600;color:#e6edf3;overflow-wrap:anywhere}
.post-nav-item.is-next{text-align:right}
.post-back{margin:26px 0 0;font-size:.92rem}
.blog-related{margin:34px 0}
.blog-related-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.blog-related-item{padding:16px;background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--radius-sm)}
.blog-related-item h3{margin:0 0 6px;font-size:1rem}
.blog-related-item a{color:#e6edf3;font-weight:600}
.blog-related-item .muted{font-size:.82rem}

/* FAQ 手风琴（原生 details，无 JS） */
.faqs-section{margin:40px 0 0}
.faqs-title{font-size:1.5rem;font-weight:800;margin:0 0 16px}
.faq-item{background:var(--panel);border:1px solid var(--border);border-radius:12px;overflow:hidden;margin-bottom:12px;transition:background .2s ease,border-color .2s ease}
.faq-item[open]{background:var(--panel-2);border-color:rgba(139,92,246,.35)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;
  padding:16px 18px;color:var(--muted);font-weight:700;font-size:1rem;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#fff}
.faq-item[open] summary{color:#fff}
.faq-item summary::after{content:"\2323";color:var(--accent);font-size:1.1rem;line-height:1;transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-answer{padding:0 18px 16px;color:var(--text-2);line-height:1.7}
.faq-answer p{margin:.6rem 0}

/* 页码 */
.pagination{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:34px 0;font-size:.92rem}
.pagination a,.page-btn{padding:8px 15px;border:1px solid var(--border);border-radius:100px;background:var(--panel);color:var(--text-2)}
.pagination a:hover,.page-btn:hover{background:var(--accent-soft);color:#fff}
.pagination a.active,.page-btn.is-active{background:var(--grad);border-color:transparent;color:#fff}
.page-info{color:var(--muted-2);font-size:.85rem}

/* 搜索 / 空状态 / 404 */
.search-form,.blog-search,.blog-search-page{display:flex;gap:10px;flex-wrap:wrap;max-width:36rem}
.search-form input[type=search],.search-form input[type=text],.blog-search input,.blog-search-page input{
  flex:1 1 200px;min-width:0;padding:12px 16px;border-radius:100px;border:1px solid var(--border);
  background:var(--panel);color:var(--text);font-size:.98rem}
.search-form input:focus,.blog-search input:focus{outline:none;border-color:var(--accent);background:var(--panel-2)}
.empty-box{padding:44px 24px;text-align:center;background:var(--panel);border:1px dashed var(--border);border-radius:var(--radius);color:var(--muted)}
.empty-box h2{color:#fff;font-size:1.2rem}
.empty-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:14px}
.big-404{font-size:3.4rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.img-empty{display:block;width:100%;height:100%;background:repeating-linear-gradient(45deg,#15181b,#15181b 10px,#1b1f23 10px,#1b1f23 20px)}
.page-heading{margin:0 0 18px}
.page-heading h1{font-size:clamp(1.7rem,3.6vw,2.4rem);margin:0 0 .3em;overflow-wrap:anywhere}
.side-box{background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--radius);padding:18px;margin-bottom:18px}
.side-title{font-size:1rem;font-weight:700;margin:0 0 12px;padding-left:10px;border-left:3px solid var(--accent)}

/* 阅读进度（content_tools 输出） */
.reading-progress{position:fixed;left:0;right:0;top:0;height:3px;z-index:60;pointer-events:none}
.reading-progress>i{display:block;height:3px;width:0;background:var(--grad-2);transition:width .12s linear}
.reading-time{color:var(--muted)}
.like-wrap{display:inline-flex;align-items:center;gap:6px}
.like-btn{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:100px;border:1px solid var(--border);background:var(--panel);color:var(--text-2);cursor:pointer;font-size:.85rem}
.like-btn:hover{border-color:rgba(139,92,246,.45);color:#fff}
.like-btn.liked{background:var(--accent-soft);border-color:rgba(139,92,246,.5);color:#fff}

/* 页脚 */
.blog-footer{background:var(--footer-bg);border-top:1px solid var(--border-soft);margin-top:60px;padding:40px 0 26px;color:var(--muted)}
.footer-inner{display:grid;gap:22px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.footer-title{color:#fff;font-weight:700;margin-bottom:10px}
.footer-nav,.footer-cat-list,.footer-sitemap{display:flex;gap:12px;flex-wrap:wrap;list-style:none;padding:0;margin:0;font-size:.9rem}
.footer-nav a,.footer-cat-list a,.footer-sitemap a{color:var(--muted)}
.footer-nav a:hover,.footer-sitemap a:hover{color:#fff}
.footer-copy{margin-top:20px;padding-top:16px;border-top:1px solid var(--border-soft);color:var(--muted-2);font-size:.84rem}
.footer-extra{font-size:.86rem;color:var(--muted-2)}

/* ---------- 响应式 ---------- */
@media (max-width:900px){
  .blog-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
  .container{padding:0 16px}
}
@media (max-width:640px){
  body{font-size:16px}
  .slogan{display:none}
  .nav-burger{display:flex}
  .main-nav{display:none}
  .nav-toggle:checked~.main-nav{display:flex;flex-direction:column;width:100%;gap:12px;padding:12px 0 4px;
    border-top:1px solid var(--border-soft);margin-top:4px}
  .blog-grid{grid-template-columns:1fr;gap:20px}
  .post-card-media{height:200px}
  .blog-item{flex-direction:column-reverse}
  .blog-item-thumb{width:100%;height:190px}
  .post-content{font-size:1rem}
  .post-nav-item.is-next{text-align:left}
  .blog-post{padding:22px 0 50px}
}
@media (max-width:400px){
  .post-title{font-size:1.7rem}
  .post-card-title{font-size:1rem}
  .pagination a,.page-btn{padding:7px 12px}
}
/* 图片比例兜底（老浏览器不支持 aspect-ratio 时用固定高度） */
@supports not (aspect-ratio:16/9){
  .post-card-media{height:190px}
}
/* 打印：深色不适合打印，反转成浅底 */
@media print{
  body{background:#fff;color:#111}
  .blog-header,.blog-footer,.post-nav,.blog-author-box,.faqs-section,#drainStart{display:none!important}
  .post-title{color:#111;-webkit-text-fill-color:#111}
}

/* ============================================================================
   内置模板通用区块（搜索页 / HTML 站点地图页 / 面包屑等）的深色适配
   这些类来自 inc/templates/*.php，统一在这里配深色，避免出现「白底黑字」的突兀区块。
   ============================================================================ */
.page-head{margin:0 0 22px}
.page-head h1{font-size:clamp(1.8rem,3.8vw,2.6rem);margin:0 0 .35em;
  background:var(--grad-title);-webkit-background-clip:text;background-clip:text;color:#fff;-webkit-text-fill-color:transparent}
.panel{background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--radius);padding:22px;margin-bottom:20px}
.panel h2{font-size:1.1rem;margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid var(--border-soft)}
.sitemap-cats,.sitemap-list{list-style:none;padding:0;margin:0;display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.sitemap-cats li,.sitemap-list li{display:flex;gap:10px;justify-content:space-between;align-items:baseline;
  padding:8px 14px;border:1px solid var(--border-soft);border-radius:var(--radius-sm);background:var(--panel);min-width:0}
.sitemap-cats a,.sitemap-list a{color:var(--text-2);overflow-wrap:anywhere}
.sitemap-cats a:hover,.sitemap-list a:hover{color:#fff}
.card-grid{display:grid;gap:22px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));margin:0 0 30px}
.card{background:var(--card);border:1px solid var(--border-soft);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;min-width:0;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(139,92,246,.35)}
.card-media{display:block;height:170px;background:#111;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;min-width:0}
.card-title{font-size:1.02rem;font-weight:700;margin:0;color:#e6edf3;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-excerpt{color:#adb5bd;font-size:.9rem;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted-2);font-size:.78rem;margin-top:auto}
.alert{padding:12px 16px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--panel);color:var(--text-2);margin:14px 0}
.badge{display:inline-block;padding:2px 10px;border-radius:100px;background:var(--accent-soft);color:var(--accent-3);font-size:.74rem;font-weight:700}
.author-hero,.blog-author-hero{display:flex;gap:18px;align-items:center;flex-wrap:wrap;padding:8px 0 22px;border-bottom:1px solid var(--border-soft)}
.author-info{min-width:0}
.author-socials{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.stat-card{background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--radius-sm);padding:14px 16px;text-align:center}
.stat-num{font-size:1.5rem;font-weight:800;color:#fff}
.stat-label{color:var(--muted-2);font-size:.82rem}

/* ============================================================================
   其余页面的版式块（分类 / 话题 / 作者 / 搜索 / 独立页面 / 归档 / 页脚区块）
   这些类分布在 category.php、topic.php、author.php、search.php、page.php 与 footer.php，
   统一在这里配好，避免这些页面出现「没样式」的浅色区块。
   ============================================================================ */
.site-header{position:sticky;top:0;z-index:50}
.site-main{display:block;padding:26px 0 60px;min-width:0}
.site-footer{background:var(--footer-bg);border-top:1px solid var(--border-soft);margin-top:60px;padding:40px 0 26px;color:var(--muted)}
.blog-body{background:var(--bg)}

/* 页面头（分类/话题/作者/搜索/独立页面共用） */
.blog-page-head{padding:44px 0 22px;max-width:56rem}
.blog-page-title{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;margin:0 0 10px;
  background:var(--grad-title);-webkit-background-clip:text;background-clip:text;color:#fff;-webkit-text-fill-color:transparent;
  overflow-wrap:anywhere}
.blog-page-desc,.blog-page-count{color:var(--muted);font-size:.95rem;margin:0 0 6px}
.blog-page-post{padding:34px 0 60px}
.blog-section-title{font-size:1.05rem;font-weight:700;margin:0 0 12px;padding-bottom:8px;border-bottom:1px solid var(--border-soft)}
.blog-timeline{list-style:none;padding:0;margin:0}
.post-foot{margin-top:26px;padding-top:20px;border-top:1px solid var(--border-soft)}
.is-prev,.is-next{min-width:0}

/* 首页底部区块：热门 / 话题 / 归档 */
.blog-foot-blocks{display:grid;gap:22px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));margin:36px 0 0}
.blog-about{margin:26px 0;padding:20px 22px;background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--radius)}
.blog-about-text{color:var(--muted);margin:0;font-size:.95rem}

/* 归档（按年月） */
.blog-archive{background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--radius);padding:18px 20px}
.blog-archive-list{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:10px}
.blog-archive-list li{display:inline-flex;align-items:baseline;gap:6px;padding:5px 12px;border-radius:100px;background:var(--panel-2);border:1px solid var(--border-soft)}
.blog-archive-month{color:var(--text-2);font-weight:600;font-size:.88rem}
.blog-archive-count,.blog-archive-label{color:var(--muted-2);font-size:.78rem}

/* 作者卡片（首页 / 作者页） */
.blog-author-card{display:flex;gap:16px;align-items:flex-start;padding:20px 22px;margin:22px 0;
  background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--radius)}
.blog-author-card-body{min-width:0}
.blog-author-card-label{color:var(--muted-2);font-size:.78rem;letter-spacing:.05em;text-transform:uppercase;margin:0 0 4px}
.blog-author-card-name{margin:0 0 6px;font-weight:700;color:#fff;font-size:1.05rem}
.blog-author-card-name a{color:#fff}
.blog-author-card-bio{color:var(--muted);font-size:.92rem;margin:0 0 6px}
.blog-author-hero{display:flex;gap:18px;align-items:center;flex-wrap:wrap;padding:8px 0 22px;border-bottom:1px solid var(--border-soft)}
.blog-author-hero-body{min-width:0;flex:1 1 260px}
.author-card,.author-info{min-width:0}
.author-name{font-weight:700;color:#fff}
.author-bio{color:var(--muted);font-size:.92rem;margin:6px 0}
.blog-avatar.is-initial{background:var(--grad);border-color:transparent;color:#fff}
.post-byline-date,.like-count{white-space:nowrap}
.faq-list{margin:0}