/* Scoped reader layout: navigation occupies its own grid column. */
.bq-article{--article-ink:#1d304c;--article-muted:#52677f;--article-blue:#2454d6;--article-border:#dce5f1;--article-header-height:76px;background:#f4f7fc;color:var(--article-ink);padding:32px 0 64px;font:14px/1.6 Inter,"Microsoft YaHei",Arial,sans-serif;min-width:0}
.bq-article *{box-sizing:border-box}
.bq-article [hidden]{display:none!important}
.bq-article-wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.bq-article-topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}
.bq-article-breadcrumb{display:flex;flex-wrap:wrap;gap:10px;color:#52677f;font-size:13px}
.bq-article-breadcrumb a{color:#52677f}
.bq-article-breadcrumb [aria-current]{color:#1d304c}
.bq-article-section-label{flex-shrink:0;font-size:12px;font-weight:600;letter-spacing:.5px;color:#2454d6;padding:4px 10px;background:#e8efff;border-radius:6px}
.bq-article-grid{display:grid;grid-template-columns:248px minmax(0,1fr);gap:28px;align-items:start}
.bq-article-sidebar{position:sticky;top:calc(var(--article-header-height) + 24px);min-width:0;max-height:calc(100vh - var(--article-header-height) - 48px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#bacbe5 transparent}
.bq-article-navigation{border:1px solid var(--article-border);border-radius:14px;background:#fff;overflow:hidden}
.bq-article-navigation>summary{display:flex;justify-content:space-between;align-items:center;gap:16px;list-style:none;padding:20px;cursor:pointer}
.bq-article summary::-webkit-details-marker{display:none}
.bq-article-navigation>summary small{display:block;color:#2454d6;font-size:10px;line-height:1.6;font-weight:700;letter-spacing:1.3px;margin-bottom:4px}
.bq-article-navigation>summary strong{color:var(--article-ink);font-size:17px;font-weight:700}
.bq-article summary i{width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin-right:4px;flex-shrink:0;transition:transform .15s}
.bq-article details[open]>summary i{transform:rotate(225deg)}
.bq-article-navigation-body{padding:0 16px 18px}
.bq-article-search{position:relative;margin-bottom:14px}
.bq-article-search input{display:block;min-width:0;width:100%;height:42px;border:1px solid #bccbe0;border-radius:8px;padding:9px 40px 9px 12px;background:#f9fbff;color:var(--article-ink);font-family:inherit;font-size:13px;line-height:22px}
.bq-article-search input::placeholder{color:#667b94;opacity:1}
.bq-article-search input:focus{border-color:#2454d6;outline:2px solid #2454d621;outline-offset:1px}
.bq-article-search button{position:absolute;top:0;right:0;display:flex;align-items:center;justify-content:center;width:38px;height:42px;border:0;background:transparent;color:#2454d6;cursor:pointer}
.bq-article-search svg{width:19px;height:19px}
.bq-doc-category{border-top:1px solid #e8edf6;padding-top:5px;margin-top:5px}
.bq-doc-category>summary{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 5px;list-style:none;font-size:14px;font-weight:600;color:var(--article-ink);cursor:pointer}
.bq-doc-category ul{list-style:none;margin:0;padding:0 0 6px}
.bq-doc-category ul:empty:after{content:"暂无文档";display:block;color:#667b94;font-size:12px;padding:4px 10px 10px}
.bq-doc-category li{margin:2px 0;padding:0}
.bq-doc-category a{position:relative;display:block;padding:9px 12px;color:#425b79;font-size:13px;line-height:1.65;border-radius:7px;overflow-wrap:anywhere}
.bq-doc-category a:hover{background:#f0f4fc;color:#2454d6}
.bq-doc-category a.is-active{background:#eaf0ff;color:#1946bf;font-weight:600;box-shadow:inset 3px 0 #2454d6}
.bq-article-index{display:flex;justify-content:space-between;gap:16px;margin-top:14px;padding:16px 4px 0;border-top:1px solid #e3eaf5;color:#2454d6;font-size:13px;font-weight:600}
.bq-article-toc{padding:22px 16px 8px}
.bq-article-toc h2{font-size:13px;font-weight:700;margin:0 0 12px;color:var(--article-ink)}
.bq-article-toc nav{display:grid;gap:2px;border-left:1px solid #cad7ea}
.bq-article-toc a{display:block;padding:7px 0 7px 13px;margin-left:-1px;border-left:2px solid transparent;color:#52677f;font-size:12px;line-height:1.7;overflow-wrap:anywhere}
.bq-article-toc a.is-sub{padding-left:23px}
.bq-article-toc a.is-active{border-color:#2454d6;color:#1946bf;font-weight:600}
.bq-article-main{min-width:0}
.bq-article-card{min-width:0;padding:38px 40px 26px;border:1px solid var(--article-border);border-radius:16px;background:#fff;box-shadow:0 4px 24px #223a5810}
.bq-article-heading{padding-bottom:24px;border-bottom:1px solid #e3eaf5;margin-bottom:30px}
.bq-article-eyebrow{color:#2454d6;font-size:12px;font-weight:600;letter-spacing:.4px}
.bq-article-heading h1{color:var(--article-ink);font-size:30px;font-weight:700;line-height:1.5;letter-spacing:-.5px;margin:12px 0 20px;overflow-wrap:anywhere;scroll-margin-top:calc(var(--article-header-height) + 24px)}
.bq-article-meta{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;font-size:12px;color:#52677f}
.bq-article-meta>div{display:flex;gap:8px 18px;flex-wrap:wrap;min-width:0}
.bq-article-copy-link{display:inline-flex;align-items:center;justify-content:center;gap:6px;flex-shrink:0;padding:0;border:0;background:transparent;color:#2454d6;font:inherit;cursor:pointer}
.bq-article-copy-link svg{width:15px;height:15px}
.bq-article-meta>.bq-article-tools{display:flex;align-items:center;flex-wrap:nowrap;gap:14px;flex-shrink:0}
.bq-article-qr-share{position:relative;color:#2454d6}
.bq-article-qr-share>summary{padding:0;list-style:none;cursor:pointer;white-space:nowrap}
.bq-article-qr-panel{position:absolute;z-index:30;right:0;top:calc(100% + 12px);width:190px;padding:20px;border:1px solid #cfdcef;border-radius:10px;background:#fff;box-shadow:0 8px 30px #162c4a20;text-align:center;color:#334d70}
.bq-article-qr{width:144px;height:144px;margin:0 auto;background:#fff}
.bq-article-qr-panel p{margin:12px 0 0;font-size:12px;line-height:1.6;white-space:nowrap}
.bq-prose{min-width:0;color:#263c58;font-size:15px;line-height:1.95;overflow-wrap:anywhere;word-break:normal}
.bq-prose :where(p,span,li,div){font-size:inherit!important;color:inherit!important;line-height:inherit!important;font-family:inherit!important;word-break:normal!important;max-width:100%}
.bq-prose p{margin:0 0 18px!important;padding:0!important}
.bq-prose h1,.bq-prose h2,.bq-prose h3,.bq-prose h4,.bq-prose .bq-prose-section{color:var(--article-ink)!important;font-size:20px!important;font-weight:700;line-height:1.55!important;margin:30px 0 16px!important;padding:0;scroll-margin-top:calc(var(--article-header-height) + 24px)}
.bq-prose h3{font-size:17px!important}
.bq-prose h4{font-size:16px!important}
.bq-prose .bq-prose-section:first-child{margin-top:0!important}
.bq-prose :where(h2,h3,p)[id]{scroll-margin-top:calc(var(--article-header-height) + 24px)}
.bq-prose a{color:#2454d6!important;text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}
.bq-prose ul,.bq-prose ol{margin:0 0 20px;padding-left:24px;list-style:revert}
.bq-prose li{margin:5px 0;list-style:inherit}
.bq-prose blockquote{margin:24px 0;padding:16px 20px;border-left:3px solid #2454d6;background:#f0f5ff;color:#334d70}
.bq-prose blockquote p:last-child{margin-bottom:0!important}
.bq-prose img,.bq-prose video,.bq-prose iframe{display:block;max-width:100%!important;height:auto;min-width:0;border-radius:6px}
.bq-prose img,.bq-prose video{height:auto!important}
.bq-prose iframe{width:100%;min-height:260px}
.bq-prose hr{border:0;border-top:1px solid #dce5f1;margin:26px 0}
.bq-prose :not(pre)>code{border-radius:4px;padding:2px 5px;background:#eef3fb;color:#1c428c;font:13px/1.6 Consolas,monospace;overflow-wrap:anywhere}
.bq-code-block{margin:20px 0;border:1px solid #213c61;border-radius:10px;overflow:hidden;background:#14263f;color:#e5edfa}
.bq-prose .bq-code-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 14px;background:#1d3454;font:12px/1.5 Consolas,"Microsoft YaHei",monospace!important;color:#c1d2e9!important;border-bottom:1px solid #314b6b}
.bq-code-toolbar button{flex-shrink:0;padding:3px 7px;border:1px solid #627b9d;border-radius:4px;background:transparent;color:#e5edfa;font:inherit;cursor:pointer}
.bq-code-toolbar button:focus-visible{outline-color:#9bbdff!important}
.bq-prose .bq-code-block a{color:#9bbdff!important}
.bq-prose pre,.bq-prose .bq-inline-command{max-width:100%;margin:0!important;padding:16px!important;overflow:auto;background:#14263f!important;color:#e5edfa!important;font:13px/1.85 Consolas,"Courier New",monospace!important;white-space:pre;word-break:normal!important;overflow-wrap:normal}
.bq-prose pre :where(code,span),.bq-prose .bq-inline-command :where(span,strong){font:inherit!important;color:inherit!important;background:transparent!important}
.bq-prose .bq-log-line{font-family:Consolas,"Courier New",monospace!important;font-size:13px!important;line-height:1.8!important;margin-bottom:7px!important}
.bq-prose .bq-prose-empty{display:none}
.bq-article-table{max-width:100%;overflow:auto;margin:24px 0;border:1px solid #d4dfef;border-radius:8px}
.bq-prose table{width:100%!important;min-width:500px;max-width:none;border-collapse:collapse;margin:0;font-size:13px}
.bq-prose th,.bq-prose td{padding:11px 14px;border:1px solid #dce5f1;line-height:1.7;vertical-align:top}
.bq-prose th{background:#edf3fc;color:#243f65;font-weight:600}
.bq-prose tbody tr:nth-child(even){background:#f9fbff}
.bq-article-end{display:flex;justify-content:space-between;gap:16px;margin-top:36px;padding-top:22px;border-top:1px solid #e3eaf5;font-size:13px}
.bq-article-end a{color:#2454d6}
.bq-article-to-top{padding:0;border:0;background:transparent;color:#52677f;font:inherit;cursor:pointer}
.bq-article-pagination{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:20px}
.bq-article-pagination>a,.bq-article-pagination>div{position:relative;display:flex;flex-direction:column;justify-content:center;gap:7px;min-width:0;min-height:102px;padding:18px 42px 18px 22px;border:1px solid var(--article-border);border-radius:12px;background:#fff;color:var(--article-ink)}
.bq-article-pagination span{color:#52677f;font-size:12px}
.bq-article-pagination strong{font-size:14px;font-weight:600;line-height:1.65;overflow-wrap:anywhere}
.bq-article-pagination i{position:absolute;right:18px;top:50%;transform:translateY(-50%);font-style:normal;color:#2454d6}
.bq-article-pagination a:hover{border-color:#8ba9e9;background:#f9fbff}
.bq-article-pagination .is-disabled{background:#f0f4fa;box-shadow:none;color:#60738b}
.bq-article-pagination .is-disabled strong{font-weight:400}
.bq-article-related{margin-top:28px}
.bq-article-related h2{margin:0 0 14px;font-size:17px;font-weight:600;color:var(--article-ink)}
.bq-article-related ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0;padding:0;list-style:none}
.bq-article-related li{margin:0;padding:0;min-width:0;list-style:none}
.bq-article-related a{display:flex;align-items:center;justify-content:space-between;gap:16px;height:100%;padding:15px 18px;border:1px solid var(--article-border);border-radius:10px;background:#fff;color:#334d70;font-size:13px}
.bq-article-related a span{color:#2454d6;flex-shrink:0}
.bq-article-support{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:28px;padding:24px;border:1px solid #c9daf7;border-radius:12px;background:#eaf1ff}
.bq-article-support h2{margin:0 0 7px;font-size:17px;font-weight:600;color:var(--article-ink)}
.bq-article-support p{margin:0;color:#52677f;font-size:13px}
.bq-article-support-actions{display:flex;gap:10px;flex-shrink:0}
.bq-article-support-actions a{display:inline-flex;align-items:center;justify-content:center;padding:10px 14px;border:1px solid #aac0e7;border-radius:7px;background:#fff;color:#1946bf;font-size:12px;font-weight:600}
.bq-article-support-actions .is-primary{background:#2454d6;border-color:#2454d6;color:#fff}
.bq-article-nav-description{color:#52677f;font-size:13px;line-height:1.8;margin:0 0 14px}
.bq-news-categories{display:grid;gap:3px}
.bq-news-categories a{display:flex;justify-content:space-between;gap:12px;padding:10px;border-radius:7px;color:#334d70;font-size:13px}
.bq-news-categories a:hover{background:#edf3ff;color:#2454d6}
.bq-article-status{position:fixed;bottom:30px;left:50%;z-index:1100;transform:translateX(-50%);max-width:calc(100% - 32px);padding:11px 18px;border-radius:8px;background:#203954;color:#fff;font-size:13px;line-height:1.6;box-shadow:0 4px 16px #162c4a20;pointer-events:none;opacity:0;transition:opacity .15s}
.bq-article-status.is-visible{opacity:1}
.bq-article-sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);border:0}
.bq-article :where(a,button,summary):focus-visible{outline:2px solid #2454d6;outline-offset:3px}
html.dark-mode .bq-article{--article-ink:#e5eefb;--article-muted:#adc0d9;--article-border:#344964;background:#142033;color:#e5eefb}
html.dark-mode .bq-article :where(.bq-article-navigation,.bq-article-card,.bq-article-pagination>a,.bq-article-related a){background:#1d2d44}
html.dark-mode .bq-article :where(.bq-article-meta,.bq-article-breadcrumb,.bq-article-breadcrumb a,.bq-article-nav-description,.bq-doc-category a,.bq-article-toc a,.bq-article-support p,.bq-article-pagination span,.bq-article-to-top,.bq-news-categories a){color:#adc0d9}
html.dark-mode .bq-prose{color:#d3def0}
html.dark-mode .bq-article :where(.bq-article-copy-link,.bq-article-eyebrow,.bq-article-index,.bq-article-end a,.bq-prose a){color:#9bbdff!important}
html.dark-mode .bq-article-qr-share{color:#9bbdff}
html.dark-mode .bq-article :where(a,button,summary):focus-visible{outline-color:#9bbdff}
html.dark-mode .bq-doc-category a.is-active,html.dark-mode .bq-news-categories a:hover{background:#273f65;color:#d9e6ff}
html.dark-mode .bq-article-search input{background:#142238;border-color:#536c8e;color:#e5eefb}
html.dark-mode .bq-article-search input::placeholder{color:#a5b7cf}
html.dark-mode .bq-article-heading,html.dark-mode .bq-doc-category,html.dark-mode .bq-article-index,html.dark-mode .bq-article-end{border-color:#344964}
html.dark-mode .bq-article-pagination .is-disabled{background:#1a2a40;color:#adc0d9}
html.dark-mode .bq-article-support,html.dark-mode .bq-prose blockquote{background:#203654;border-color:#486792}
html.dark-mode .bq-prose th{background:#253b58;color:#d8e5fa}
html.dark-mode .bq-prose td,html.dark-mode .bq-prose th{border-color:#48607f}
html.dark-mode .bq-prose tbody tr:nth-child(even){background:#18283d}
@media(max-width:1024px){.bq-article{--article-header-height:104px}.bq-article-grid{grid-template-columns:220px minmax(0,1fr);gap:20px}.bq-article-card{padding:28px}.bq-article-heading h1{font-size:27px}.bq-article-support{flex-wrap:wrap}}
@media(max-width:900px){.bq-article-grid{grid-template-columns:minmax(0,1fr);gap:20px}.bq-article-sidebar{position:static;max-height:none;overflow:visible}.bq-article-navigation>summary{padding:15px 20px}.bq-article-navigation>summary small{display:none}.bq-article-navigation>summary strong{font-size:15px}.bq-article-navigation-body{padding:0 20px 18px}.bq-doc-categories{max-height:360px;overflow:auto}.bq-article-toc{display:none}.bq-article-meta>div{gap:6px 14px}.bq-article-support{flex-wrap:nowrap}}
@media(max-width:768px){.bq-article{--article-header-height:56px;padding:24px 0 40px}.bq-article-wrap{padding:0 20px}.bq-article-section-label{display:none}.bq-article-topbar{margin-bottom:20px}.bq-article-card{padding:26px 24px 22px;border-radius:12px}.bq-article-heading h1{font-size:25px;line-height:1.45}.bq-article-heading{padding-bottom:22px;margin-bottom:24px}.bq-article-meta{flex-wrap:wrap;gap:14px}.bq-prose{font-size:15px}.bq-article-support{flex-wrap:wrap;gap:16px}.bq-article-support-actions{flex-wrap:wrap}.bq-article-pagination{gap:12px}.bq-article-pagination>a,.bq-article-pagination>div{padding:16px;min-height:110px}.bq-article-pagination i{display:none}.bq-article-related ul{grid-template-columns:1fr}}
@media(max-width:480px){.bq-article-wrap{padding:0 16px}.bq-article-breadcrumb{font-size:12px;gap:8px}.bq-article-card{padding:22px 20px 20px}.bq-article-heading h1{font-size:23px}.bq-article-eyebrow{font-size:11px}.bq-article-meta>div{display:grid;gap:6px}.bq-prose h2,.bq-prose .bq-prose-section{font-size:18px!important}.bq-article-support{padding:20px}.bq-article-pagination strong{font-size:13px}}
@media(prefers-reduced-motion:reduce){.bq-article *{scroll-behavior:auto!important;transition:none!important}}
@media print{#header,#footer,.footer-service,.float-dialog,.bq-article-sidebar,.bq-article-topbar,.bq-article-pagination,.bq-article-related,.bq-article-support,.bq-article-tools,.bq-code-toolbar,.bq-article-end{display:none!important}.bq-article{padding:0;background:#fff}.bq-article-wrap{max-width:none;padding:0}.bq-article-grid{display:block}.bq-article-card{border:0;box-shadow:none;padding:0}.bq-prose pre,.bq-prose .bq-inline-command{white-space:pre-wrap}}