:root{--nb-accent:#1f4e79;--nb-text:#1d2330;--nb-muted:#5b6475;--nb-line:#e6e8ee;--nb-bg:#ffffff}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--nb-bg);color:var(--nb-text);font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--nb-accent)}img{max-width:100%;height:auto}
.nb-wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.nb-top{border-bottom:1px solid var(--nb-line);background:#fff}
.nb-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.nb-brand{display:flex;align-items:center;gap:12px;color:var(--nb-text);text-decoration:none;font-weight:700;font-size:19px}
.nb-logo{width:40px;height:40px;border-radius:8px;object-fit:contain}
.nb-site{font-size:15px;text-decoration:none;color:var(--nb-muted);white-space:nowrap}.nb-site:hover{color:var(--nb-accent)}
main.nb-wrap{padding-top:32px;padding-bottom:56px}
.nb-title{font-size:36px;line-height:1.2;margin:0 0 24px;border-left:6px solid var(--nb-accent);padding-left:14px}
.nb-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:28px}
.nb-card{border:1px solid var(--nb-line);border-radius:14px;overflow:hidden;background:#fff}
.nb-card>a{display:block;color:var(--nb-text);text-decoration:none}
.nb-card img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;background:#f2f4f7}
.nb-card h2{font-size:20px;line-height:1.35;margin:16px 18px 6px}.nb-card>a:hover h2{color:var(--nb-accent)}
.nb-card p{margin:0 18px 16px;color:var(--nb-muted);font-size:15px}.nb-card .nb-meta{margin-bottom:8px;font-size:13px}
.nb-pager{display:flex;justify-content:space-between;margin-top:36px;font-weight:600}
.nb-empty{color:var(--nb-muted)}
.nb-article{max-width:720px;margin:0 auto}
.nb-article h1{font-size:38px;line-height:1.2;margin:4px 0 22px}
.nb-meta{color:var(--nb-muted);font-size:14px;margin:0}
.nb-hero{margin:0 0 26px}.nb-hero img{display:block;width:100%;border-radius:14px}
.nb-body h2{font-size:26px;line-height:1.3;margin:36px 0 12px}.nb-body h3{font-size:21px;margin:28px 0 10px}
.nb-body blockquote{margin:24px 0;padding:4px 18px;border-left:4px solid var(--nb-accent);color:var(--nb-muted)}
.nb-body pre{max-width:100%;overflow-x:auto;white-space:pre;padding:12px 14px;background:#f5f6f8;border-radius:8px}.nb-body code{overflow-wrap:anywhere}.nb-body pre code{overflow-wrap:normal}
.nb-body table{border-collapse:collapse;width:100%;display:block;overflow-x:auto}.nb-body th,.nb-body td{border:1px solid var(--nb-line);padding:8px 10px;text-align:left}
.nb-body figure{margin:24px 0}.nb-body figcaption{color:var(--nb-muted);font-size:14px}
.nb-back{margin-top:40px;font-weight:600}
.nb-error{text-align:center;padding:60px 0}
.nb-foot{border-top:1px solid var(--nb-line);color:var(--nb-muted);font-size:14px;padding:22px 0}
@media (max-width:600px){body{font-size:16px}.nb-title{font-size:28px}.nb-article h1{font-size:28px}.nb-bar{min-height:58px}.nb-brand{font-size:17px}.nb-site{font-size:13px}main.nb-wrap{padding-top:22px}}