/* QRGo · 前台样式
   零图片、零 Web Font、单文件；首屏关键部分由 layout 直接引用。
   设计令牌与《QRGo-前端设计稿.html》一致。 */

:root{
  --bg:#fbfaf8; --bg-soft:#f4f2ee; --bg-a:rgba(251,250,248,.84);
  --card:#ffffff; --bd:#e6e2da; --bd-2:#d3cec3;
  --tx:#1b1a17; --tx-2:#4a473f; --mu:#86817a;
  --brand:#0e9f6e; --brand-d:#0a7a55; --brand-s:rgba(14,159,110,.10);
  --ring:rgba(14,159,110,.30);
  --shadow:0 1px 2px rgba(28,25,20,.04),0 8px 24px -14px rgba(28,25,20,.18);
  --shadow-2:0 2px 4px rgba(28,25,20,.05),0 18px 40px -20px rgba(28,25,20,.28);
  --r:14px; --r-p:999px; --max:1240px;
}
[data-theme="dark"]{
  --bg:#0f1113; --bg-soft:#15181b; --bg-a:rgba(15,17,19,.82);
  --card:#181b1f; --bd:#262b30; --bd-2:#39424a;
  --tx:#e8e6e1; --tx-2:#b3b0a9; --mu:#82807a;
  --brand:#34d399; --brand-d:#6ee7b7; --brand-s:rgba(52,211,153,.13);
  --ring:rgba(52,211,153,.34);
  --shadow:0 1px 2px rgba(0,0,0,.4),0 12px 32px -18px rgba(0,0,0,.8);
  --shadow-2:0 2px 6px rgba(0,0,0,.5),0 24px 48px -24px rgba(0,0,0,.9);
}
*{box-sizing:border-box}
html{color-scheme:light dark;scroll-behavior:smooth}
body{
  margin:0;overflow-x:hidden;background:var(--bg);color:var(--tx);
  min-height:100vh;display:flex;flex-direction:column;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;
  transition:background-color .3s,color .3s;
}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:0;background:var(--card);padding:10px 16px;border-radius:8px;z-index:999}
.skip:focus{left:12px;top:12px}

/* 顶栏 */
header{position:sticky;top:0;z-index:80;background:var(--bg-a);
  backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;transition:border-color .2s,background-color .3s}
header.scrolled{border-bottom-color:var(--bd)}
.hd{max-width:var(--max);margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;gap:22px}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:15.5px;letter-spacing:-.2px;flex:none}
.logo .mk{width:30px;height:30px;border-radius:9px;background:var(--brand);display:grid;place-items:center;box-shadow:0 2px 8px -2px var(--ring)}
.logo .mk svg{width:17px;height:17px;fill:#fff}
.logo .mk.has-img{background:none;box-shadow:none}
.logo .mk img{width:100%;height:100%;object-fit:contain;border-radius:inherit;display:block}
[data-theme="dark"] .logo .mk svg{fill:#0f1113}
.nav{display:flex;align-items:center;gap:2px;flex:1;min-width:0}
/* 注意：这里不能 overflow:hidden/auto——下拉面板是绝对定位子元素，会被裁掉 */
.nav a{position:relative;padding:7px 13px;border-radius:var(--r-p);color:var(--tx-2);font-size:13.5px;white-space:nowrap;transition:color .16s,background-color .16s}
.nav a:hover{color:var(--tx);background:var(--bg-soft)}
.nav a[aria-current="page"]{color:var(--brand-d);background:var(--brand-s);font-weight:600}
.nav a[aria-current="page"]::after{content:"";position:absolute;left:50%;bottom:-3px;transform:translateX(-50%);
  width:16px;height:2px;background:var(--brand);border-radius:2px}
[data-theme="dark"] .nav a[aria-current="page"]{color:var(--brand)}
.search{position:relative;flex:none;width:246px;transition:width .22s cubic-bezier(.4,0,.2,1)}
.search:focus-within{width:320px}
.search input{width:100%;height:36px;padding:0 62px 0 34px;border-radius:var(--r-p);border:1px solid var(--bd);
  background:var(--bg-soft);color:var(--tx);font-size:13px;outline:none;
  transition:border-color .16s,box-shadow .16s,background-color .16s}
.search input::placeholder{color:var(--mu)}
.search input:focus{border-color:var(--brand);background:var(--card);box-shadow:0 0 0 3px var(--ring)}
.search .ico{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:15px;height:15px;
  stroke:var(--mu);fill:none;stroke-width:1.9;pointer-events:none}
.search kbd{position:absolute;right:8px;top:50%;transform:translateY(-50%);font-family:inherit;font-size:10.5px;
  color:var(--mu);border:1px solid var(--bd);border-radius:5px;padding:1px 5px;background:var(--card);pointer-events:none}
.icon-btn{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;border:1px solid var(--bd);
  background:var(--card);color:var(--tx-2);flex:none;transition:color .16s,border-color .16s,transform .1s}
.icon-btn:hover{color:var(--brand-d);border-color:var(--bd-2)}
.icon-btn:active{transform:scale(.95)}
.icon-btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.menu-btn{display:none}
#themeBtn .moon,#themeBtn .sun{display:none}
#themeBtn .auto{display:block}
[data-theme-pref="light"] #themeBtn .auto{display:none}
[data-theme-pref="light"] #themeBtn .sun{display:block}
[data-theme-pref="dark"] #themeBtn .auto{display:none}
[data-theme-pref="dark"] #themeBtn .moon{display:block}

/* Hero */
.hero{max-width:var(--max);margin:0 auto;padding:52px 24px 12px;text-align:center}
.hero h1{margin:0 0 10px;font-size:31px;line-height:1.28;letter-spacing:-.9px;font-weight:700}
.hero h1 em{font-style:normal;color:var(--brand-d);background:linear-gradient(transparent 66%,var(--brand-s) 66%);padding:0 2px;border-radius:2px}
.hero p{margin:0 0 26px;color:var(--mu);font-size:14.5px}
.bigsearch{position:relative;max-width:540px;margin:0 auto}
.bigsearch input{width:100%;height:50px;padding:0 118px 0 46px;border-radius:14px;border:1px solid var(--bd);
  background:var(--card);font-size:14.5px;color:var(--tx);outline:none;box-shadow:var(--shadow);
  transition:border-color .16s,box-shadow .16s}
.bigsearch input:focus{border-color:var(--brand);box-shadow:0 0 0 4px var(--ring),var(--shadow)}
.bigsearch .ico{position:absolute;left:17px;top:50%;transform:translateY(-50%);width:17px;height:17px;
  stroke:var(--mu);fill:none;stroke-width:1.9}
.bigsearch .go{position:absolute;right:7px;top:7px;height:36px;padding:0 16px;border-radius:10px;
  background:var(--brand);color:#fff;font-size:13px;font-weight:600;transition:filter .16s,transform .1s}
[data-theme="dark"] .bigsearch .go{color:#0f1113}
.bigsearch .go:hover{filter:brightness(1.06)}
.bigsearch .go:active{transform:scale(.97)}
.hots{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;justify-content:center;align-items:center;font-size:12.5px;color:var(--mu)}
.hots a{padding:4px 10px;border-radius:var(--r-p);background:var(--bg-soft);color:var(--tx-2);border:1px solid var(--bd);transition:.16s}
.hots a:hover{color:var(--brand-d);border-color:var(--brand);background:var(--brand-s)}

/* 列表 */
main{max-width:var(--max);margin:0 auto;padding:34px 24px 60px;min-width:0;flex:1 0 auto;width:100%}
.sec-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;min-width:0}
.chips{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px;min-width:0;flex:1}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;padding:7px 14px;border-radius:var(--r-p);border:1px solid var(--bd);background:var(--card);
  color:var(--tx-2);font-size:13px;white-space:nowrap;transition:.16s}
.chip:hover{border-color:var(--bd-2);color:var(--tx)}
.chip[aria-pressed="true"]{background:var(--tx);color:var(--bg);border-color:var(--tx);font-weight:600}
[data-theme="dark"] .chip[aria-pressed="true"]{color:#0f1113}
.count{font-size:12.5px;color:var(--mu);white-space:nowrap;font-variant-numeric:tabular-nums}
.page-head{margin:0 0 16px;font-size:17px;letter-spacing:-.3px}

.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:6px}
.card{position:relative;background:var(--card);border:1px solid var(--bd);border-radius:var(--r);
  padding:15px 16px 14px;display:flex;flex-direction:column;min-height:150px;
  transition:transform .18s cubic-bezier(.4,0,.2,1),box-shadow .18s,border-color .18s}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--bd-2)}
.card:active{transform:translateY(0);box-shadow:var(--shadow)}
.card .top{display:flex;align-items:flex-start;gap:11px;padding-right:22px}
.card .tt{min-width:0}
.ci{width:42px;height:42px;border-radius:12px;flex:none;display:grid;place-items:center;font-weight:700;font-size:17px;
  letter-spacing:-.5px;background:var(--cb);color:var(--c);box-shadow:inset 0 0 0 1px rgba(0,0,0,.05);
  transition:background-color .3s,color .3s}
[data-theme="dark"] .ci{background:color-mix(in srgb,var(--c) 20%,var(--card));
  color:color-mix(in srgb,var(--c) 22%,#fff);box-shadow:inset 0 0 0 1px rgba(255,255,255,.04)}
.card .title{margin:0;font-size:14.5px;font-weight:650;line-height:1.35;letter-spacing:-.15px;padding-top:1px}
.card .title a::after{content:"";position:absolute;inset:0;border-radius:var(--r);z-index:1}
.card .host{font-size:12px;color:var(--mu);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card .desc{margin:11px 0 12px;font-size:12.5px;color:var(--tx-2);line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.card .foot{display:flex;align-items:center;gap:7px;font-size:11.5px;color:var(--mu)}
.tag{padding:2px 7px;border-radius:5px;background:var(--bg-soft);border:1px solid var(--bd);color:var(--tx-2);font-size:11px}
.hits{margin-left:auto;font-variant-numeric:tabular-nums;display:flex;align-items:center;gap:4px}
.hits svg{width:12px;height:12px;stroke:var(--mu);fill:none;stroke-width:1.9}

.empty{padding:64px 20px;text-align:center;color:var(--mu)}
.empty .big{font-size:15px;color:var(--tx-2);margin-bottom:6px;font-weight:600}
.empty .tips{margin-top:16px;display:flex;gap:8px;justify-content:center}

/* 详情 */
.detail{max-width:760px;padding-top:40px}
.back{font-size:13px;color:var(--mu)}
.back:hover{color:var(--brand-d)}
.d-head{display:flex;align-items:center;gap:16px;margin:18px 0 20px}
.d-icon{width:64px;height:64px;border-radius:18px;background:var(--brand-s);color:var(--brand-d);
  display:grid;place-items:center;font-size:26px;font-weight:700;flex:none}
.d-head h1{margin:0;font-size:24px;letter-spacing:-.6px}
.d-desc{margin:0 0 16px;font-size:14.5px;line-height:1.75;color:var(--tx-2)}
.d-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.muted{font-size:12.5px;color:var(--mu)}
.d-actions{display:flex;gap:10px;margin-bottom:28px}
.btn{height:40px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;
  background:var(--brand);color:#fff;font-size:13.5px;font-weight:600;transition:.16s}
[data-theme="dark"] .btn{color:#0f1113}
.btn:hover{filter:brightness(1.06)}
.btn.ghost{background:var(--card);color:var(--tx-2);border:1px solid var(--bd)}
.btn.ghost:hover{border-color:var(--bd-2);color:var(--tx);filter:none}
.d-qr{border:1px solid var(--bd);border-radius:var(--r);padding:24px;background:var(--card);text-align:center}
.qr-placeholder{color:var(--mu);font-size:13px;line-height:2;padding:30px 0}
.qr-placeholder span{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;color:var(--tx-2)}
.qr-note{margin-top:12px;font-size:12px;color:var(--mu)}

/* 错误页 */
.err{text-align:center;padding:14vh 24px}
.err-code{font-size:56px;font-weight:700;letter-spacing:-3px;color:var(--brand-d)}
.err-msg{color:var(--mu);margin:8px 0 26px}

/* 页脚 */
footer{border-top:1px solid var(--bd);background:var(--bg-soft);margin-top:auto}
.ft{max-width:var(--max);margin:0 auto;padding:26px 24px;display:flex;gap:18px;flex-wrap:wrap;
  justify-content:space-between;align-items:center;font-size:12.5px;color:var(--mu)}
.ft a:hover{color:var(--brand-d)}
.ft .l{display:flex;gap:16px;flex-wrap:wrap}

/* 响应式 */
@media (max-width:1199px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:1023px){
  .hd{gap:14px}
  .search{width:200px}.search:focus-within{width:240px}
  .hero{padding-top:38px}.hero h1{font-size:26px}
}
@media (max-width:899px){
  .menu-btn{display:grid}
  .nav{display:none}
}
@media (max-width:1023px){
  .nav a{padding:7px 9px;font-size:13px}
}
@media (max-width:767px){
  header{border-bottom:1px solid var(--bd)}
  .hd{height:auto;padding:9px 16px 0;gap:9px;flex-wrap:wrap}
  .logo{order:1;font-size:14.5px}.logo .mk{width:27px;height:27px;border-radius:8px}
  .search{order:2;margin-left:auto;width:36px;height:34px;border-radius:9px;background:var(--bg-soft);border:1px solid var(--bd)}
  .search input{width:100%;padding:0;border:0;background:transparent;cursor:pointer}
  .search input::placeholder{color:transparent}
  .search .ico{left:10px;width:14px;height:14px}
  .search kbd{display:none}
  .search:focus-within{width:172px}
  .search:focus-within input{padding:0 10px 0 32px;cursor:text;border-radius:9px}
  .search:focus-within input::placeholder{color:var(--mu)}
  .icon-btn{order:3;width:34px;height:34px}
  .sec-head{flex-wrap:wrap;gap:6px}
  .chips{flex-basis:100%}
  .count{order:3;flex-basis:100%;text-align:left;padding-left:2px;font-size:12px}
  .hero{padding:26px 16px 6px}
  .hero h1{font-size:22px;letter-spacing:-.5px}
  .hero p{font-size:13px;margin-bottom:20px}
  .bigsearch input{height:46px;font-size:14px}
  main{padding:24px 16px 60px}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .card{min-height:0;padding:13px}
  .card .desc{font-size:12px}
  .card .top{gap:9px}.ci{width:36px;height:36px;border-radius:10px;font-size:15px}
  .card .title{font-size:13.5px}
  .detail{padding-top:26px}
  .d-head h1{font-size:20px}
  .d-icon{width:54px;height:54px;border-radius:15px;font-size:22px}
}
@media (max-width:479px){
  .grid{grid-template-columns:1fr;gap:10px}
  .card{flex-direction:row;flex-wrap:wrap;align-items:flex-start}
  .card .desc{display:none}
  .card .top{flex:1}
  .card .foot{margin-top:8px;flex-basis:100%}
  .hero h1{font-size:20px}
  .d-actions{flex-direction:column}
  .btn{justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* ── 卡片二维码按钮 ── */
.qr-btn{position:absolute;right:9px;top:9px;z-index:2;width:28px;height:28px;border-radius:8px;
  display:grid;place-items:center;background:var(--bg-soft);border:1px solid var(--bd);color:var(--mu);
  opacity:0;transform:translateY(-2px);transition:opacity .16s,transform .16s,color .16s,border-color .16s}
.qr-btn svg{width:14px;height:14px;fill:currentColor}
.card:hover .qr-btn,.card:focus-within .qr-btn{opacity:1;transform:none}
.qr-btn:hover{color:var(--brand-d);border-color:var(--brand);background:var(--brand-s)}
.qr-btn:active{transform:scale(.94)}
@media (hover:none){.qr-btn{opacity:.6;transform:none}.card:hover .qr-btn{opacity:1}}

/* ── 二维码弹窗 ── */
.mask{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:20px;
  background:rgba(18,16,14,.56);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px)}
.mask[hidden]{display:none}
.modal{position:relative;width:100%;max-width:330px;background:var(--card);border:1px solid var(--bd);
  border-radius:18px;padding:24px 22px 20px;text-align:center;box-shadow:0 30px 70px -30px rgba(0,0,0,.5);
  animation:pop .18s cubic-bezier(.2,.8,.3,1)}
@keyframes pop{from{opacity:0;transform:scale(.96) translateY(6px)}to{opacity:1;transform:none}}
.modal .close{position:absolute;right:10px;top:10px;width:30px;height:30px;border-radius:8px;display:grid;place-items:center;color:var(--mu)}
.modal .close:hover{background:var(--bg-soft);color:var(--tx)}
.modal .close svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round}
.modal h3{margin:0 0 3px;font-size:15.5px;letter-spacing:-.2px;padding:0 26px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
/* 弹窗副标题：不能复用导航的 .sub（那是绝对定位的下拉面板，会被 display:none 藏掉） */
.modal .qr-sub{margin:0 0 16px;font-size:12px;color:var(--mu);padding:0}
.qrbox{background:#fff;border-radius:12px;padding:12px;display:grid;place-items:center;
  border:1px solid var(--bd);box-shadow:inset 0 0 0 1px rgba(0,0,0,.03)}
.qrbox img{display:block;width:100%;height:auto;image-rendering:pixelated}
.modal .url{display:flex;gap:7px;margin-top:14px}
.modal .url input{flex:1;min-width:0;height:34px;padding:0 10px;border-radius:9px;border:1px solid var(--bd);
  background:var(--bg-soft);color:var(--tx);font-size:12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;outline:none}
.modal .url button{height:34px;padding:0 13px;border-radius:9px;background:var(--brand);color:#fff;font-size:12.5px;font-weight:600}
[data-theme="dark"] .modal .url button{color:#0f1113}
.modal-foot{display:flex;justify-content:center;gap:16px;margin-top:13px;font-size:12px;color:var(--mu)}
.modal-foot a:hover{color:var(--brand-d)}

/* 详情页二维码 */
.qr-img{width:200px;height:200px;display:block;margin:0 auto 12px;background:#fff;border-radius:10px}
.qr-acts{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:16px}
.btn.sm{height:34px;padding:0 13px;font-size:12.5px;font-weight:500}
body.lock{overflow:hidden}

/* ── 三级导航（桌面） ── */
.nv{position:relative;display:flex;align-items:center}
.nav .nv{flex:none}
.nv-top{display:inline-flex;align-items:center;gap:4px}
.nv .chev{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;opacity:.55;transition:transform .18s}
.has-sub:hover>.nv-top .chev{transform:rotate(180deg);opacity:1}
.has-sub.on>.nv-top{color:var(--brand-d)}
[data-theme="dark"] .has-sub.on>.nv-top{color:var(--brand)}

.sub{position:absolute;top:calc(100% + 6px);left:0;min-width:184px;padding:6px;z-index:90;
  background:var(--card);border:1px solid var(--bd);border-radius:12px;box-shadow:var(--shadow-2);
  display:none;flex-direction:column;gap:1px}
.has-sub:hover>.sub,.has-sub:focus-within>.sub{display:flex}
.sub::before{content:"";position:absolute;left:0;right:0;top:-8px;height:8px}  /* 悬停缓冲区，避免移动鼠标时闪断 */
.sub a{padding:7px 10px;border-radius:8px;font-size:13px;color:var(--tx-2);white-space:nowrap;
  display:flex;align-items:center;justify-content:space-between;gap:10px}
.sub a:hover{background:var(--bg-soft);color:var(--tx)}
.sub a[aria-current="page"],.sub a.cur{color:var(--brand-d);background:var(--brand-s);font-weight:600}
.sub .sub-all{color:var(--mu);font-size:12px;border-bottom:1px solid var(--bd);border-radius:8px 8px 0 0;margin-bottom:2px}
.sub-i{position:relative}
.sub-i.has-sub2>a .chev{width:11px;height:11px}
.sub2{position:absolute;left:calc(100% + 4px);top:-6px;min-width:160px;padding:6px;z-index:91;
  background:var(--card);border:1px solid var(--bd);border-radius:12px;box-shadow:var(--shadow-2);
  display:none;flex-direction:column;gap:1px}
.sub-i:hover>.sub2,.sub-i:focus-within>.sub2{display:flex}

/* ── 面包屑 ── */
.crumb{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-size:12.5px;color:var(--mu);margin-bottom:14px}
.crumb a:hover{color:var(--brand-d)}
.crumb span[aria-current]{color:var(--tx-2)}
.detail .crumb{margin-bottom:10px}

/* ── 分类 chip 变成链接后去掉按钮态 ── */
a.chip{color:var(--tx-2)}
a.chip[aria-current="page"]{background:var(--tx);color:var(--bg);border-color:var(--tx);font-weight:600}
[data-theme="dark"] a.chip[aria-current="page"]{color:#0f1113}

/* ── 移动端抽屉 ── */
.dr-mask{position:fixed;inset:0;z-index:190;background:rgba(18,16,14,.5);
  backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);animation:fade .16s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.drawer{position:fixed;top:0;right:0;bottom:0;z-index:195;width:min(84vw,330px);
  background:var(--bg);border-left:1px solid var(--bd);display:flex;flex-direction:column;
  box-shadow:-20px 0 50px -30px rgba(0,0,0,.5);animation:slide .2s cubic-bezier(.2,.8,.3,1)}
.drawer[hidden],.dr-mask[hidden]{display:none}
@keyframes slide{from{transform:translateX(18px);opacity:.6}to{transform:none;opacity:1}}
.dr-top{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;
  border-bottom:1px solid var(--bd);font-weight:650;font-size:14px}
.dr-close{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;color:var(--mu)}
.dr-close:hover{background:var(--bg-soft);color:var(--tx)}
.dr-close svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.dr-body-list{flex:1;overflow-y:auto;padding:10px 10px 30px}
.dr-i{display:block;padding:10px 12px;border-radius:9px;font-size:14px;color:var(--tx-2)}
.dr-i:hover{background:var(--bg-soft);color:var(--tx)}
.dr-i[aria-current="page"]{background:var(--brand-s);color:var(--brand-d);font-weight:600}
.dr-i.dr-s1{padding-left:24px;font-size:13.5px}
.dr-i.dr-s2{padding-left:38px;font-size:13px}
.dr-head{width:100%;display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 12px;border-radius:9px;font-size:14px;color:var(--tx-2);text-align:left}
.dr-head:hover{background:var(--bg-soft);color:var(--tx)}
.dr-head svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;
  stroke-linejoin:round;transition:transform .2s;flex:none;opacity:.6}
.dr-head[aria-expanded="true"] svg{transform:rotate(180deg)}
.dr-head.dr-h1{padding-left:24px;font-size:13.5px}
.dr-body{display:none}
.dr-grp.open>.dr-body{display:block}
.dr-grp.lv2 .dr-body{padding-left:0}
.dr-grp.open>.dr-head{color:var(--brand-d)}
[data-theme="dark"] .dr-grp.open>.dr-head{color:var(--brand)}

/* ── PJAX 进度条 ── */
.pj-bar{position:fixed;left:0;top:0;height:2px;width:0;z-index:400;background:var(--brand);
  box-shadow:0 0 8px var(--brand);transition:width .25s ease,opacity .3s;opacity:0}
.pj-bar.on{opacity:1}
body.pj-busy{cursor:progress}

/* ── 单页正文 ── */
.page-view{max-width:720px;padding-top:40px}
.prose{background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:34px 34px 28px}
.prose h1{margin:0 0 18px;font-size:23px;letter-spacing:-.5px}
.prose-body{font-size:14.5px;line-height:1.85;color:var(--tx-2)}
.prose-body p{margin:0 0 14px}
.prose-body ul{margin:0 0 14px;padding-left:20px}
.prose-body li{margin:4px 0}
.prose-body strong{color:var(--tx);font-weight:650}
.prose-body a{color:var(--brand-d);text-decoration:underline;text-underline-offset:2px}
[data-theme="dark"] .prose-body a{color:var(--brand)}
.prose-foot{margin-top:22px;padding-top:14px;border-top:1px solid var(--bd);font-size:12px;color:var(--mu)}

@media (max-width:767px){
  .prose{padding:22px 18px 20px}
  .prose h1{font-size:20px}
  .page-view{padding-top:22px}
}

/* 分页条 */
.pager{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;margin:28px 0 10px}
.pg{min-width:34px;height:34px;padding:0 11px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;font-size:13px;color:var(--tx-2);border:1px solid var(--bd);background:var(--card);
  transition:border-color .15s,color .15s,background .15s}
a.pg:hover{border-color:var(--brand);color:var(--brand-d)}
.pg.on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.pg.dis{opacity:.45}
.pg.gap{border:0;background:none;min-width:auto;padding:0 2px;color:var(--mu)}
@media (max-width:520px){.pg{min-width:30px;height:30px;padding:0 8px;font-size:12px}}