/* 言栖资讯 /blog 样式：轻量、移动优先，和言栖主站同一套浅色观感 */
:root{
  --bg:#f2f3f5;--card:#fff;--txt:#191919;--sub:#8a908c;--line:#eceeed;
  --brand:#2f7d5d;--brand-ink:#1f6547;--radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--txt);font:15px/1.7 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;padding-bottom:40px}
a{color:var(--brand-ink);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}

.btop{position:sticky;top:0;z-index:9;display:flex;align-items:center;gap:14px;
  padding:12px 16px;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);flex-wrap:wrap}
.blogo{font-weight:600;font-size:17px;color:var(--txt)}
.bnav{display:flex;gap:14px;font-size:13.5px;margin-left:auto}
.bnav a{color:var(--sub)}

.bwrap{max-width:760px;margin:0 auto;padding:16px}

.bhero{background:var(--card);border-radius:var(--radius);padding:18px 16px;margin-bottom:14px}
.bhero h1{margin:0 0 6px;font-size:20px;line-height:1.4}
.bhero p{margin:0 0 12px;color:var(--sub);font-size:13.5px}
.bsearch{display:flex;gap:8px;margin-bottom:12px}
.bsearch input{flex:1;min-width:0;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#f7f9f8;font-size:14px}
.bsearch button{padding:0 16px;border:0;border-radius:12px;background:var(--brand);color:#fff;font-size:14px}
.bchips{display:flex;gap:8px;flex-wrap:wrap}
.bchips a{padding:5px 12px;border-radius:999px;background:#f2f5f3;color:var(--sub);font-size:13px}
.bchips a.on{background:var(--brand);color:#fff}

.blist{display:flex;flex-direction:column;gap:12px}
.bcard{display:flex;gap:12px;background:var(--card);border-radius:var(--radius);overflow:hidden;padding:12px}
.bthumb{flex:none;width:110px;height:82px;border-radius:12px;overflow:hidden;background:#eef1ef}
.bthumb img{width:100%;height:100%;object-fit:cover;display:block}
.bbody{flex:1;min-width:0}
.bbody h2{margin:0 0 4px;font-size:15.5px;line-height:1.45}
.bbody h2 a{color:var(--txt)}
.bbody p{margin:0;color:var(--sub);font-size:13px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.brow{display:flex;gap:10px;align-items:center;margin-top:8px;color:#a3a9a5;font-size:12px;flex-wrap:wrap}
.blang{padding:1px 8px;border-radius:999px;background:#eef6f1;color:var(--brand-ink)}

.bpager{display:flex;align-items:center;justify-content:center;gap:16px;padding:18px 0;font-size:14px;color:var(--sub)}
.bpager a{padding:6px 14px;border-radius:999px;background:var(--card);color:var(--brand-ink)}

.bempty{background:var(--card);border-radius:var(--radius);padding:28px 16px;text-align:center;color:var(--sub)}

.bpost{background:var(--card);border-radius:var(--radius);padding:18px 16px}
.bbc{font-size:12.5px;color:var(--sub);margin-bottom:8px}
.bpost h1{margin:0 0 10px;font-size:22px;line-height:1.45}
.bmeta{display:flex;gap:12px;flex-wrap:wrap;color:#a3a9a5;font-size:12.5px;margin-bottom:14px}
.bcover{width:100%;border-radius:12px;margin:0 0 16px;display:block}
.bcontent{font-size:15.5px;line-height:1.85;word-break:break-word}
.bcontent h1,.bcontent h2,.bcontent h3,.bcontent h4{line-height:1.45;margin:1.4em 0 .6em;font-size:1.18em}
.bcontent p{margin:0 0 1em}
.bcontent pre{background:#f6f8f7;border:1px solid var(--line);border-radius:12px;padding:12px;overflow:auto;font-size:13px}
.bcontent code{background:#f2f5f3;border-radius:6px;padding:1px 5px;font-size:.92em}
.bcontent pre code{background:none;padding:0}
.bcontent blockquote{margin:0 0 1em;padding:6px 14px;border-left:3px solid #dce7e1;color:#55605a;background:#f8faf9;border-radius:0 10px 10px 0}
.bcontent img{border-radius:12px;margin:10px 0}
.bcontent table{width:100%;border-collapse:collapse;font-size:13.5px;display:block;overflow:auto}
.bcontent th,.bcontent td{border:1px solid var(--line);padding:8px 10px}
.bsrc{margin-top:20px;font-size:12.5px;color:var(--sub);word-break:break-all}

.brel{margin-top:14px;background:var(--card);border-radius:var(--radius);padding:16px}
.brel h2{margin:0 0 10px;font-size:15px}
.brel ul{list-style:none;margin:0;padding:0}
.brel li{display:flex;gap:12px;align-items:baseline;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--line)}
.brel li:last-child{border-bottom:0}
.brel li a{flex:1;min-width:0;font-size:14px;color:var(--txt)}
.brel li span{flex:none;color:#a3a9a5;font-size:12px}

.bfoot{max-width:760px;margin:18px auto 0;padding:0 16px;color:#a3a9a5;font-size:12.5px;text-align:center}
.bfoot a{color:var(--sub)}

@media (max-width:420px){
  .bthumb{width:92px;height:72px}
  .bpost h1{font-size:19px}
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0f1412;--card:#161d1a;--txt:#e8eeea;--sub:#93a09a;--line:#25302b;--brand:#2f7d5d;--brand-ink:#8fd3b3}
  body{background:var(--bg)}
  .btop{background:rgba(22,29,26,.92)}
  .bsearch input{background:#1d2622;color:var(--txt)}
  .bchips a{background:#1d2622}
  .bthumb{background:#1d2622}
  .bcontent pre,.bcontent code{background:#1d2622}
  .bcontent blockquote{background:#1a2320;border-left-color:#2c3b34;color:#b7c3bd}
}