/* Standalone knowledge reading template. Site header/footer remain shared. */
body.qiai-knowledge-article{--ka-ink:#213e32;--ka-muted:#78817a;--ka-line:#dce1da;--ka-paper:#f7f8f5;margin:0;min-width:1280px;background:#fff;color:#343b36;font-family:"PingFang SC","Microsoft YaHei",sans-serif}
body.qiai-knowledge-article .ka-main{max-width:1120px;margin:0 auto;padding:58px 0 96px}
body.qiai-knowledge-article .ka-breadcrumb{display:flex;gap:14px;align-items:center;margin:0 0 46px;color:#838c84;font-size:13px;line-height:1.6}
body.qiai-knowledge-article .ka-breadcrumb a{color:#68756b;text-decoration:none}
body.qiai-knowledge-article .ka-breadcrumb a:hover{color:var(--ka-ink)}
body.qiai-knowledge-article .ka-masthead{padding:0 0 42px;border-bottom:1px solid var(--ka-line);margin:0 0 46px;background:transparent;text-align:left}
body.qiai-knowledge-article .ka-overline{display:flex;gap:14px;align-items:center;color:#536a5b;font-size:13px;letter-spacing:1px}
body.qiai-knowledge-article .ka-overline i{width:24px;height:1px;background:#829889}
body.qiai-knowledge-article .ka-masthead h1{max-width:990px;margin:20px 0 20px;color:var(--ka-ink);font-size:44px;font-weight:600;line-height:1.45;letter-spacing:-.8px;text-wrap:balance}
body.qiai-knowledge-article .ka-meta{display:flex;align-items:center;gap:24px;min-height:24px;color:var(--ka-muted);font-size:13px;font-variant-numeric:tabular-nums}
body.qiai-knowledge-article .ka-meta .article-live-stats,body.qiai-knowledge-article .ka-meta .article-stat-pill{display:inline-flex;gap:6px;align-items:center;margin:0;padding:0;border:0;border-radius:0;background:none;box-shadow:none;color:var(--ka-muted);font-size:13px}
body.qiai-knowledge-article .ka-deck{max-width:970px;margin:27px 0 0;padding:0 0 0 20px;border-left:2px solid #9baea0;color:#5e6960;font-size:18px;line-height:1.95}
body.qiai-knowledge-article .ka-tags{display:flex;flex-wrap:wrap;gap:10px 20px;margin:20px 0 0;padding:0;color:#748177;font-size:12px}
body.qiai-knowledge-article .ka-tags span{padding:0;border:0;border-radius:0;background:transparent;color:inherit}
body.qiai-knowledge-article .ka-tags span:before{content:"# ";color:#a1aaa3}
body.qiai-knowledge-article .ka-reading-grid{display:grid;grid-template-columns:220px minmax(0,760px);gap:76px;align-items:start}
body.qiai-knowledge-article .ka-aside{position:sticky;top:104px;max-height:calc(100vh - 132px);overflow:auto;scrollbar-width:thin;padding-right:12px}
body.qiai-knowledge-article .ka-toc{border-top:2px solid var(--ka-ink);padding-top:18px}
body.qiai-knowledge-article .ka-toc>p{display:flex;justify-content:space-between;align-items:center;margin:0 0 22px;color:var(--ka-ink);font-size:14px;font-weight:600}
body.qiai-knowledge-article .ka-toc>p span{color:#8d968e;font-size:10px;letter-spacing:1.7px;font-weight:400}
body.qiai-knowledge-article .ka-toc>a{display:flex;gap:12px;padding:9px 0;text-decoration:none;color:#768076;font-size:12px;line-height:1.65;transition:color .15s}
body.qiai-knowledge-article .ka-toc>a span{flex:0 0 19px;color:#a3aaa3;font-size:11px;font-variant-numeric:tabular-nums;padding-top:1px}
body.qiai-knowledge-article .ka-toc>a b{font-weight:400}
body.qiai-knowledge-article .ka-toc>a:hover{color:#224934}
body.qiai-knowledge-article .ka-toc .ka-toc-back{margin-top:24px;padding-top:18px;border-top:1px solid var(--ka-line);color:var(--ka-ink);font-size:13px}
body.qiai-knowledge-article .ka-article{min-width:0}
body.qiai-knowledge-article .ka-prose{width:auto;max-width:none;margin:0;padding:0;color:#374038;font-size:18px;line-height:1.95;overflow-wrap:anywhere}
body.qiai-knowledge-article .ka-prose *{box-sizing:border-box}
body.qiai-knowledge-article .ka-prose :is(section,article,div){margin:0;padding:0;width:auto;max-width:none;min-height:0;background:transparent;border-radius:0;box-shadow:none}
body.qiai-knowledge-article .ka-prose .ka-section{margin:0 0 36px}
body.qiai-knowledge-article .ka-prose .ka-section .ka-section{margin:0 0 34px}
body.qiai-knowledge-article .ka-prose p{margin:0 0 20px;font-size:18px;line-height:1.95;color:#414a42;text-align:justify}
body.qiai-knowledge-article .ka-prose :is(h2,h3,h4,h5){color:var(--ka-ink);font-weight:600;letter-spacing:0;line-height:1.55;scroll-margin-top:115px}
body.qiai-knowledge-article .ka-prose h2{display:block;font-size:26px;margin:48px 0 22px;padding:0 0 14px;border-bottom:1px solid var(--ka-line)}
body.qiai-knowledge-article .ka-prose h3{display:block;font-size:21px;margin:30px 0 15px;padding:0;border:0}
body.qiai-knowledge-article .ka-prose h4{font-size:18px;margin:25px 0 10px}
body.qiai-knowledge-article .ka-prose>h2:first-child,body.qiai-knowledge-article .ka-prose>.ka-section:first-child>h2:first-child{margin-top:0}
body.qiai-knowledge-article .ka-prose :is(h2,h3,h4)::after{display:none;content:none}
body.qiai-knowledge-article .ka-prose :is(b,strong){color:var(--ka-ink);font-weight:600}
body.qiai-knowledge-article .ka-prose a{color:#36674c;text-decoration:underline;text-decoration-color:#c6d0c7;text-underline-offset:4px;box-shadow:none;border-radius:0}
body.qiai-knowledge-article .ka-prose a:hover{color:#1d432d;text-decoration-color:#36674c;transform:none}
body.qiai-knowledge-article .ka-prose :is(ul,ol){margin:14px 0 25px;padding-left:26px;list-style-position:outside}
body.qiai-knowledge-article .ka-prose ul{list-style-type:disc}
body.qiai-knowledge-article .ka-prose ol{list-style-type:decimal}
body.qiai-knowledge-article .ka-prose li{margin:9px 0;line-height:1.9;color:#414a42}
body.qiai-knowledge-article .ka-prose li::marker{color:#6e8a77}
body.qiai-knowledge-article .ka-prose :is(blockquote,.ka-note){display:block;margin:24px 0;padding:22px 26px;border-left:2px solid #8ea18f;background:var(--ka-paper);font-size:17px}
body.qiai-knowledge-article .ka-prose :is(blockquote,.ka-note)>p:last-child{margin-bottom:0}
body.qiai-knowledge-article .ka-prose :is(.ka-facts,.ka-media-references){display:grid;grid-template-columns:1fr 1fr;gap:18px 26px;margin:24px 0}
body.qiai-knowledge-article .ka-prose .ka-facts>div{border-top:1px solid var(--ka-line);padding-top:12px}
body.qiai-knowledge-article .ka-prose .ka-facts p{font-size:16px;line-height:1.85}
body.qiai-knowledge-article .ka-prose .ka-facts h4{margin-top:4px}
body.qiai-knowledge-article .ka-prose .article-card{display:block!important;padding:18px 0!important;background:transparent!important;border:0!important;border-top:1px solid var(--ka-line)!important;border-radius:0!important;box-shadow:none!important;text-decoration:none!important;color:inherit!important;transform:none!important;overflow:visible!important}
body.qiai-knowledge-article .ka-prose .article-card::after{display:none!important;content:none!important}
body.qiai-knowledge-article .ka-prose .article-card h4{margin:8px 0;font-size:18px}
body.qiai-knowledge-article .ka-prose .article-card p{font-size:14px;line-height:1.8;margin-bottom:10px;text-align:left}
body.qiai-knowledge-article .ka-prose .article-card span{font-size:12px;color:#748477}
body.qiai-knowledge-article .ka-prose .read-more{font-size:12px;color:#36674c}
body.qiai-knowledge-article .ka-prose table{width:100%;border-collapse:collapse;table-layout:auto;margin:25px 0;font-size:15px;line-height:1.8}
body.qiai-knowledge-article .ka-prose :is(th,td){padding:13px 15px;text-align:left;border:1px solid #dbe1da;vertical-align:top;word-break:normal}
body.qiai-knowledge-article .ka-prose th{color:#274732;background:#eef2ec;font-weight:600}
body.qiai-knowledge-article .ka-prose tr:nth-child(even) td{background:#fafbf9}
body.qiai-knowledge-article .ka-prose .table-container{overflow:auto;max-width:100%}
body.qiai-knowledge-article .ka-prose details{margin:0;padding:16px 0;border:0;border-bottom:1px solid var(--ka-line);background:transparent;border-radius:0}
body.qiai-knowledge-article .ka-prose summary{cursor:pointer;font-weight:600;font-size:18px;color:var(--ka-ink);line-height:1.8}
body.qiai-knowledge-article .ka-prose details p{font-size:17px;margin:18px 0 4px}
body.qiai-knowledge-article .ka-prose figure{margin:24px 0;padding:16px 0;border-top:1px solid var(--ka-line);border-bottom:1px solid var(--ka-line)}
body.qiai-knowledge-article .ka-prose :is(figcaption,.gallery-caption){font-size:13px;line-height:1.8;color:var(--ka-muted);margin-top:8px}
body.qiai-knowledge-article .ka-prose .ka-image-reference{font-size:13px;line-height:1.8}
body.qiai-knowledge-article .ka-prose i[class*=fa]{display:none}
body.qiai-knowledge-article .ka-prose [id]{scroll-margin-top:115px}
body.qiai-knowledge-article .ka-record{margin-top:48px;padding:24px 0;border-top:1px solid var(--ka-line)}
body.qiai-knowledge-article .ka-record h3{font-size:14px;letter-spacing:1px;color:var(--ka-ink);margin:0 0 15px}
body.qiai-knowledge-article .ka-record .meta-list{display:block}
body.qiai-knowledge-article .ka-record .meta-item{display:flex;gap:25px;padding:6px 0;color:#7a847b;font-size:13px;line-height:1.8;border:0}
body.qiai-knowledge-article .ka-record .meta-item strong{flex:0 0 65px;color:#556658;font-weight:400}
body.qiai-knowledge-article .ka-end{display:flex;justify-content:space-between;align-items:center;margin-top:42px;padding:24px 0;border-top:1px solid var(--ka-line);font-size:13px;color:#919a91}
body.qiai-knowledge-article .ka-end a{color:var(--ka-ink);text-decoration:none}
body.qiai-knowledge-article .ka-main :is(a,summary):focus-visible{outline:2px solid #557760;outline-offset:5px}
@media(prefers-reduced-motion:reduce){body.qiai-knowledge-article .ka-main *{scroll-behavior:auto!important;transition:none!important}}

body.qiai-knowledge-article .ka-prose .step-card{display:grid;grid-template-columns:34px minmax(0,1fr);gap:16px;margin:25px 0}
body.qiai-knowledge-article .ka-prose .step-number{padding-top:3px;color:#92a195;font-size:19px;font-variant-numeric:tabular-nums}
body.qiai-knowledge-article .ka-prose .step-content h4{margin-top:0}
body.qiai-knowledge-article .ka-prose .ka-original-media{margin-top:38px;padding:18px 0;border-top:1px solid var(--ka-line)}
body.qiai-knowledge-article .ka-prose .ka-original-media>summary{font-size:13px;color:#77857a;font-weight:400}
body.qiai-knowledge-article .ka-prose .ka-original-media-list{padding-top:16px}
body.qiai-knowledge-article .ka-prose .ka-original-media-list p{font-size:13px}

body.qiai-knowledge-article .ka-masthead .ka-title-part{display:block;text-wrap:pretty}
body.qiai-knowledge-article .ka-prose .ka-first-heading{margin-top:0}

body.qiai-knowledge-article .qiai-search-layer{transition:opacity 180ms ease,transform 180ms ease}
body.qiai-knowledge-article .ka-anchor{display:block;position:relative;scroll-margin-top:115px;width:0;height:0;overflow:hidden}

body.qiai-knowledge-article .ka-prose .ka-facts .number{font-size:26px;color:var(--ka-ink);font-weight:600;font-variant-numeric:tabular-nums}
body.qiai-knowledge-article .ka-prose .ka-facts .label{margin-top:4px;font-size:14px;line-height:1.8;color:#748177}

body.qiai-knowledge-article .ka-utilities{position:fixed;right:16px;bottom:30px;display:flex;flex-direction:column;align-items:stretch;gap:8px;z-index:90;font-size:12px}
body.qiai-knowledge-article .ka-utilities>a,body.qiai-knowledge-article .ka-utilities .qa-wechat>summary{display:flex;align-items:center;justify-content:center;min-width:48px;min-height:40px;padding:5px 9px;background:#fff;border:1px solid #d5ded5;border-radius:2px;color:#365b43;text-decoration:none;cursor:pointer;box-shadow:0 3px 12px #1022190b;list-style:none}
body.qiai-knowledge-article .ka-utilities .qa-wechat>summary::-webkit-details-marker{display:none}
body.qiai-knowledge-article .ka-utilities .qa-wechat{margin:0;padding:0;position:relative}
body.qiai-knowledge-article .ka-utilities .floating-qrcode{position:absolute;right:calc(100% + 12px);bottom:0;width:172px;padding:16px;background:#fff;border:1px solid #d5ded5;box-shadow:0 8px 28px #1636211a;text-align:center}
body.qiai-knowledge-article .ka-utilities .floating-qrcode h4{font-size:12px;font-weight:500;margin:0 0 10px;color:#365b43}
body.qiai-knowledge-article .ka-utilities .qr-item{margin-top:10px}
body.qiai-knowledge-article .ka-utilities .qr-item img{display:block;width:128px;height:128px;object-fit:contain;margin:0 auto}
body.qiai-knowledge-article .ka-utilities .qr-item p{font-size:11px;margin:6px 0 0;color:#708076}
body.qiai-knowledge-article .ka-utilities :is(a,summary):focus-visible{outline:2px solid #557760;outline-offset:3px}