的伪元素绝对定位铺满整个 → 点击区域 = 整行，与 hover 高亮范围一致
用绝对定位，不加 padding，所以文字排版一动不动 */
body.md-dir-page .entry-content p.md-dir-item{position:relative!important;}
body.md-dir-page .entry-content p.md-dir-item a::after{
content:""!important;position:absolute!important;
top:0!important;right:0!important;bottom:0!important;left:0!important;
}
/* ⑤ 全站进度条 */
.md-dir-total{margin:22px 0 8px!important;padding:16px 18px!important;border-radius:12px!important;
background:#f8fafc!important;border:1px solid #e8eef7!important;}
html.md-dark .md-dir-total{background:rgba(148,163,184,.08)!important;border-color:rgba(148,163,184,.16)!important;}
.md-dir-total-txt{display:flex!important;align-items:baseline!important;flex-wrap:wrap!important;gap:10px!important;
font-size:14px!important;line-height:1.6!important;margin-bottom:10px!important;color:#64748b!important;}
.md-dir-total-label{font-weight:600!important;font-size:15px!important;color:#0f172a!important;}
html.md-dark .md-dir-total-label{color:#e2e8f0!important;}
.md-dir-total-num b{font-size:19px!important;font-weight:700!important;color:#2563eb!important;}
.md-dir-total-pct{font-weight:700!important;color:#2563eb!important;}
.md-dir-total-left{margin-left:auto!important;font-size:13px!important;color:#94a3b8!important;}
.md-dir-bar{height:8px!important;border-radius:9999px!important;background:#e2e8f0!important;overflow:hidden!important;}
html.md-dark .md-dir-bar{background:rgba(148,163,184,.22)!important;}
.md-dir-bar>i{display:block!important;height:100%!important;border-radius:9999px!important;
background:linear-gradient(90deg,#2563eb,#60a5fa)!important;}
/* ⑥ 移动端吸顶篇章条（桌面端不显示：左侧已有固定浮窗目录） */
.md-dir-nav{display:none!important;}
@media (max-width:1100px){
.md-dir-nav{display:block!important;position:fixed!important;left:0!important;right:0!important;top:0!important;z-index:8!important;
background:rgba(255,255,255,.95)!important;-webkit-backdrop-filter:saturate(180%) blur(12px)!important;
backdrop-filter:saturate(180%) blur(12px)!important;border-bottom:1px solid #eef2f7!important;
transition:top .18s ease!important;}
html.md-dark .md-dir-nav{background:rgba(24,26,32,.95)!important;border-bottom-color:rgba(148,163,184,.16)!important;}
.md-dir-nav-in{display:flex!important;gap:8px!important;overflow-x:auto!important;white-space:nowrap!important;
padding:8px 10px!important;-webkit-overflow-scrolling:touch!important;scrollbar-width:none!important;}
.md-dir-nav-in::-webkit-scrollbar{display:none!important;}
.md-dir-nav-a{flex:0 0 auto!important;display:inline-flex!important;align-items:center!important;gap:6px!important;
font-size:13px!important;line-height:1!important;padding:7px 11px!important;border-radius:9999px!important;
background:#f1f5f9!important;color:#475569!important;text-decoration:none!important;border:1px solid transparent!important;}
html.md-dark .md-dir-nav-a{background:rgba(148,163,184,.14)!important;color:#cbd5e1!important;}
.md-dir-nav-a em{font-style:normal!important;font-size:11px!important;color:#94a3b8!important;}
.md-dir-nav-a.md-dir-nav-full em{color:#059669!important;}
html.md-dark .md-dir-nav-a.md-dir-nav-full em{color:#5ee0b0!important;}
.md-dir-nav-a.current{background:#eff6ff!important;color:#2563eb!important;border-color:#dbeafe!important;font-weight:600!important;}
.md-dir-nav-a.current em{color:#60a5fa!important;}
html.md-dark .md-dir-nav-a.current{background:rgba(37,99,235,.20)!important;color:#8ab4ff!important;border-color:rgba(96,165,250,.34)!important;}
}
/* ⑦ 回到顶部 */
.md-dir-top{position:fixed!important;right:16px!important;bottom:32px!important;z-index:8!important;
width:42px!important;height:42px!important;padding:0!important;border-radius:50%!important;
border:1px solid #e3eaf3!important;background:#fff!important;color:#2563eb!important;
box-shadow:0 6px 18px rgba(15,23,42,.10)!important;display:flex!important;align-items:center!important;
justify-content:center!important;cursor:pointer!important;opacity:0!important;visibility:hidden!important;
transform:translateY(8px)!important;transition:opacity .22s ease,transform .22s ease,visibility .22s!important;}
html.md-dark .md-dir-top{background:#232733!important;border-color:rgba(148,163,184,.20)!important;color:#8ab4ff!important;}
.md-dir-top.show{opacity:1!important;visibility:visible!important;transform:translateY(0)!important;}
.md-dir-top:hover{box-shadow:0 8px 22px rgba(37,99,235,.22)!important;}
@media (max-width:1100px){ .md-dir-top{bottom:74px!important;} }
/*MD_DIRECTORY_END*/
/* ↑ 目录页右下角悬浮「回到顶部」：桌面端已合并进左侧栏（MD_POSTRAIL 那颗）→ 隐藏，避免两个重复；
手机端保留（目录页极长≈14800px，左栏那颗在页面最底部，悬浮钮才是手机上真正能用的）。
2026-10-15 用户要求「右下角回到顶部合并到左侧栏」。 */
@media (min-width:769px){ body.md-dir-page #md-dir-top{display:none!important;} }
/*MD_RES_START*/
/* 资料页（VIP 专享）：说明卡片 + 获取按钮。主色/圆角/暗色与全站一致（#2563eb + slate） */
body.md-res-page .entry-content>.md-res-intro{max-width:820px!important;margin-left:auto!important;margin-right:auto!important;}
.md-res-intro{margin:4px auto 26px!important;padding:20px 24px!important;background:#f8fafc!important;
border:1px solid #e8eef7!important;border-radius:14px!important;}
.md-res-intro p{margin:0 0 10px!important;font-size:16px!important;line-height:1.85!important;color:#475569!important;}
.md-res-intro p:last-child{margin-bottom:0!important;}
.md-res-intro b{color:#0f172a!important;font-weight:600!important;}
.md-res-box{max-width:820px!important;margin:0 auto!important;padding:38px 24px 30px!important;text-align:center!important;
background:#fff!important;border:1px solid #e8eef7!important;border-radius:16px!important;
box-shadow:0 1px 2px rgba(15,23,42,.04)!important;}
.md-res-badge{display:flex!important;width:max-content!important;max-width:100%!important;align-items:center!important;gap:6px!important;padding:5px 14px!important;
border-radius:9999px!important;font-size:13px!important;font-weight:600!important;line-height:1.6!important;
background:#eff6ff!important;color:#2563eb!important;margin:0 auto 20px!important;}
.md-res-badge svg{width:15px!important;height:15px!important;display:block!important;flex:0 0 auto!important;}
.md-res-btn{display:inline-flex!important;align-items:center!important;justify-content:center!important;gap:8px!important;
min-width:210px!important;padding:14px 40px!important;border-radius:12px!important;
background:#2563eb!important;color:#fff!important;font-size:16px!important;font-weight:600!important;line-height:1!important;
text-decoration:none!important;border:none!important;cursor:pointer!important;
box-shadow:0 6px 18px rgba(37,99,235,.24)!important;transition:background .2s,box-shadow .2s,transform .2s!important;}
.md-res-btn:hover{background:#1d4ed8!important;color:#fff!important;box-shadow:0 8px 24px rgba(37,99,235,.32)!important;transform:translateY(-1px)!important;}
.md-res-code{margin:16px 0 0!important;font-size:14px!important;color:#64748b!important;line-height:1.6!important;}
.md-res-code b{color:#2563eb!important;letter-spacing:3px!important;font-size:16px!important;
font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace!important;}
.md-res-note{color:#94a3b8!important;font-size:13px!important;}
/* 暗色模式 */
html.md-dark .md-res-intro{background:rgba(148,163,184,.08)!important;border-color:rgba(148,163,184,.16)!important;}
html.md-dark .md-res-intro p{color:#cbd5e1!important;}
html.md-dark .md-res-intro b{color:#e2e8f0!important;}
html.md-dark .md-res-box{background:#181a20!important;border-color:rgba(148,163,184,.16)!important;box-shadow:none!important;}
html.md-dark .md-res-badge{background:rgba(37,99,235,.20)!important;color:#8ab4ff!important;}
html.md-dark .md-res-code{color:#94a3b8!important;}
html.md-dark .md-res-code b{color:#8ab4ff!important;}
html.md-dark .md-res-note{color:#6b7683!important;}
/*MD_RES_END*/
/*MD_PAGENAV_BTN_START*/
/* 分页栏页码按钮高度统一（对齐分类归档页 36px）：搜索页等走 PHP b2_pagenav() 输出 ，会继承 .b2-single-content 的 line-height:1.8（12px 字→21.6px 行高）把按钮顶成 41.6px；
分类归档页走 Vue page-nav 输出