/* Blog 专区(参考核对 14 / 15).源自原型 .bnav / .b3 / .b4 / .bpost 等 + 行内样式转类 */
.bnav{border-bottom:1px solid var(--line);background:var(--surface);position:sticky;top:56px;z-index:6}
.bnav .c{display:flex;gap:22px;align-items:center;overflow:auto;white-space:nowrap;padding:0 20px}
.bnav a{padding:14px 0;font-size:15px;font-weight:500;color:var(--ink-2)}
.bnav a.on{color:var(--ink);box-shadow:inset 0 -2px 0 var(--tab-line)}
.bnav a:hover{color:var(--ink)}
.bnav .sp{flex:1}
.bnav a.ent{color:var(--accent)}
.blog{padding-top:28px}
.bhd{margin:8px 0 18px}.bhd h1{font-size:34px;font-weight:600;line-height:1.25}
.bhd p{color:var(--ink-2);margin-top:8px;max-width:760px}
.b3{display:grid;grid-template-columns:1.35fr 1fr .85fr;gap:34px;padding-bottom:30px}
.b3 .pic{aspect-ratio:16/10;overflow:hidden;border-radius:4px;background:var(--surface-2)}
.b3 .pic img{width:100%;height:100%;object-fit:cover;display:block}
.blead .eyebrow{display:block;margin:16px 0 6px}
.blead h1{font-size:30px;font-weight:600;line-height:1.3}
.blead p{color:var(--ink-2);margin:10px 0 12px}
.by{font-size:12.5px;color:var(--ink-3);font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.bmid{display:flex;flex-direction:column;gap:22px;border-left:1px solid var(--line);border-right:1px solid var(--line);padding:0 26px}
.bmid a{display:block}.bmid b{display:block;font-size:19px;font-weight:600;line-height:1.35;margin:12px 0 6px}
.bmid a+a{border-top:1px solid var(--line);padding-top:22px}
.bfeat h5{font-size:12px;letter-spacing:.08em;color:var(--ink-3);margin-bottom:14px}
.bfeat a{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--line)}
.bfeat a:last-child{border-bottom:0}
.bfeat b{display:block;font-size:15px;font-weight:600;line-height:1.4}
.bfeat .th{width:64px;height:64px;flex:none;border-radius:4px;overflow:hidden;background:var(--surface-2)}
.bfeat .th img{width:100%;height:100%;object-fit:cover;display:block}
.bsec{border-top:1px solid var(--line);padding-top:22px}
.bsec h5{font-size:12px;letter-spacing:.08em;color:var(--ink-3)}
.b4{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:16px}
.bcard4 .pic{aspect-ratio:16/9;overflow:hidden;border-radius:4px;background:var(--surface-2)}
.bcard4 .pic img{width:100%;height:100%;object-fit:cover;display:block}
.bcard4 b{display:block;font-size:16px;font-weight:600;line-height:1.4;margin:12px 0 6px}
.bcard4 p{font-size:13.5px;color:var(--ink-2);line-height:1.55;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.bcard4:hover b{color:var(--accent)}
.bpost{max-width:1000px;margin:0 auto;padding:40px 20px 0}
.bph{max-width:680px;margin:0 auto}
.bph .eyebrow{display:block;color:var(--accent);margin-bottom:10px}
.bph h1{font-size:38px;font-weight:600;line-height:1.25}
.bph .lead{font-size:17px;color:var(--ink-2);margin-top:12px;line-height:1.6}
.byline{display:flex;gap:10px;align-items:center;margin:18px 0 0;font-size:13px;color:var(--ink-3)}
.byline b{color:var(--ink);font-weight:600}
.byline .avatar{width:28px;height:28px;border-radius:50%;background:var(--surface-2);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--ink-2)}
.bhero{margin:28px auto 0;border-radius:6px;overflow:hidden;aspect-ratio:16/8}
.bhero img{width:100%;height:100%;object-fit:cover;display:block}
.bbody{max-width:680px;margin:0 auto;padding:28px 0 0}
.bbody p{font-size:16px;line-height:1.75;margin-bottom:18px}
.bbody h2{font-size:20px;font-weight:600;margin:28px 0 12px}
.bbody figure{margin:26px 0}
.bbody figure img{width:100%;max-height:520px;object-fit:cover;border-radius:6px;display:block}
.bbody figcaption{text-align:center;font-size:13px;color:var(--ink-3);margin-top:10px}
.bbody blockquote{border-left:3px solid var(--accent);padding:4px 0 4px 18px;margin:26px 0}
.bbody blockquote p{font-size:18px;line-height:1.7;margin-bottom:8px}
.bbody blockquote cite{font-style:normal;font-size:13px;color:var(--ink-3)}
.bbody figure.wide{width:min(960px,calc(100vw - 40px));margin:32px 0;margin-left:50%;transform:translateX(-50%)}
.bbody figure.wide img{border-radius:6px;width:100%;aspect-ratio:16/9;object-fit:contain;background:var(--surface-2);mix-blend-mode:multiply}
.bduo{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:26px 0}
.bduo figure{margin:0}
.bduo img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:6px;display:block}
.bduo figcaption{text-align:center;font-size:12.5px;color:var(--ink-3);margin-top:8px}
.bfacts{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:20px 0 28px}
.bfacts>div{background:var(--surface-2);border-radius:6px;padding:18px 16px}
.bfacts .no{display:block;font-size:12px;color:var(--ink-3);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;margin-bottom:6px}
.bfacts b{display:block;font-size:15px;font-weight:600;line-height:1.4;margin-bottom:6px}
.bfacts p{font-size:13.5px;line-height:1.65;color:var(--ink-2);margin:0}
.bweld{margin:16px 0 8px}
.bweld .row{display:flex;align-items:center;gap:12px;margin-bottom:10px;font-size:14px}
.bweld .row>span{width:72px;flex:none;color:var(--ink-2)}
.bweld .bar{flex:1;height:8px;border-radius:4px;background:var(--surface-2);overflow:hidden}
.bweld .bar i{display:block;height:100%;background:var(--accent);border-radius:4px}
.bweld b{width:58px;text-align:right;font-weight:600}
.bprod{display:flex;gap:20px;align-items:center;background:var(--surface-2);border-radius:8px;padding:20px;margin:30px 0}
.bprod .pic{width:132px;height:132px;flex:none;background:var(--surface);border-radius:6px;overflow:hidden}
.bprod .pic img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.bprod b{display:block;font-size:20px;font-weight:600;margin:4px 0 6px}
.bprod p{font-size:14px;color:var(--ink-2);margin-bottom:12px}
.bprod .acts{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-start}
@media(max-width:600px){.bfacts,.bduo{grid-template-columns:1fr}.bprod{flex-direction:column;align-items:flex-start}}
.bmore{max-width:1180px;margin:40px auto 0;padding:26px 20px 0;border-top:1px solid var(--line)}
.bmore h2{font-size:20px;font-weight:600;margin-bottom:6px}
@media(max-width:1023px){.b3{grid-template-columns:1fr;gap:26px}.bmid{border:0;padding:0}.b4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.b4{grid-template-columns:1fr}.bph h1{font-size:28px}.blead h1{font-size:24px}.bhd h1{font-size:26px}}
/* 行内样式转类 */
.blog-all{margin:22px 0 0}
.notice.blog-rule{margin:22px 0 0}
.blog-empty{margin:18px 0}