/* 技术文章页（articles.html / article.html） */
.art-wrap{max-width:820px;margin:0 auto}
.art-meta{color:var(--mute,#6b7c86);font-size:13.5px}
.art-top{margin:-6px 0 18px}
.art-sum{background:#f3f8fa;border-left:4px solid var(--acc,#0e7c86);padding:14px 18px;border-radius:8px;margin:0 0 26px;line-height:1.85}
.art-body{font-size:16px;line-height:1.9;color:var(--ink2,#2c3a42)}
.art-body h2{font-size:22px;margin:38px 0 14px;scroll-margin-top:90px}
.art-body h3{font-size:18px;margin:26px 0 10px;scroll-margin-top:90px}
.art-body p{margin:0 0 14px}
.art-body ul,.art-body ol{margin:0 0 16px;padding-left:22px}
.art-body li{margin:4px 0}
.art-body blockquote{margin:0 0 16px;padding:10px 16px;border-left:3px solid #c9d8de;color:#55666f}
.art-body code{background:rgba(0,0,0,.06);padding:1px 5px;border-radius:4px;font-size:.92em}
.art-body a{color:var(--acc-d,#0a5c64);text-decoration:underline}
.art-tw{overflow-x:auto;margin:6px 0 20px}
.art-tw table{border-collapse:collapse;width:100%;font-size:14px}
.art-tw th,.art-tw td{border:1px solid #dbe5ea;padding:8px 10px;text-align:left;vertical-align:top}
.art-tw th{background:#eef5f7}
.art-toc{background:#fafcfd;border:1px solid #e3ecf0;border-radius:10px;padding:14px 18px;margin:0 0 26px;font-size:14px}
.art-toc b{display:block;margin-bottom:6px}
.art-toc a{display:block;padding:3px 0;color:var(--acc-d,#0a5c64)}
@media(max-width:700px){.art-toc a{padding:9px 0;min-height:40px;box-sizing:border-box;border-bottom:1px solid #edf2f5}.art-toc a:last-child{border-bottom:0}}
.art-list{display:grid;gap:16px}
.art-card{display:block;padding:20px 22px;border:1px solid #e3ecf0;border-radius:12px;background:#fff;transition:border-color .2s}
.art-card:hover{border-color:var(--acc,#0e7c86)}
.art-card h2{font-size:19px;margin:0 0 8px;color:var(--ink,#13232c)}
.art-card p{margin:0;color:#55666f;line-height:1.75}
.art-card .art-meta{margin-top:10px}
.art-more{margin-top:40px;border-top:1px solid #e3ecf0;padding-top:20px}
.art-more b{display:block;margin-bottom:8px}
.art-more a{display:block;padding:6px 0;color:var(--acc-d,#0a5c64)}
.art-cta{margin:34px 0 0;padding:20px 22px;border-radius:12px;background:#0f2530;color:#e6f2f5;line-height:1.8}
.art-cta a{color:#fff;font-weight:600}
@media (max-width:640px){.art-body{font-size:15.5px}.art-body h2{font-size:20px}}