/* Generated by tools/build-seo.ts from atlas/styles.css (reader rules) + standalone layout. */
:root{--serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.7 var(--font-sans)}
a{color:var(--accent-text)}
.sg{max-width:1240px;margin:0 auto;padding:28px 32px 60px;display:grid;grid-template-columns:250px minmax(0,1fr);gap:40px}
.sg-toc{position:sticky;top:calc(var(--cr-nav-height,64px) + 16px);align-self:start;max-height:calc(100vh - 110px);overflow:auto;font-size:12.5px;border-right:1px solid var(--line);padding-right:14px}
.sg-toc h2{font-size:12px;letter-spacing:1.5px;color:var(--muted);margin:0 0 10px}
.sg-toc ol{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.sg-toc a{display:flex;gap:8px;padding:6px 8px;border-radius:4px;color:var(--ink-2);text-decoration:none}
.sg-toc a span{font-family:var(--font-mono);color:var(--faint);font-size:11px;padding-top:1px}
.sg-toc a:hover{background:var(--surface-2)}
.sg-toc a[aria-current=page]{background:var(--accent-soft);color:var(--ink);font-weight:600}
.sg-crumbs{font-size:12px;color:var(--muted);display:flex;gap:6px;flex-wrap:wrap}
.sg-crumbs a{color:var(--muted)}
.sg-main{min-width:0}
.sg-tools{display:flex;gap:14px;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:12px;flex-wrap:wrap}
.sg-tools a{font-size:12.5px;font-weight:600}
.sg-pager{display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--line);margin-top:26px;padding-top:16px}
.sg-pager a{display:grid;gap:2px;max-width:46%;padding:10px 14px;border:1px solid var(--line);border-radius:6px;background:var(--surface);text-decoration:none;color:var(--ink)}
.sg-pager a small{color:var(--muted);font-size:11.5px}
.sg-pager a:last-child{text-align:right;margin-left:auto}
.sg-foot{grid-column:1/-1;border-top:1px solid var(--line);padding-top:16px;font-size:12px;color:var(--muted)}
@media(max-width:900px){.sg{grid-template-columns:1fr;padding:20px 16px 48px;gap:16px}.sg-toc{position:static;max-height:none;border-right:0;border-bottom:1px solid var(--line);padding:0 0 12px}.sg-toc ol{grid-template-columns:1fr 1fr}}
.guide-article{padding:25px 0;font-size:14px;line-height:2;color:var(--t-5b6b55);overflow-wrap:anywhere}.guide-article .page{width:auto;height:auto;padding:0;overflow:visible;background:transparent;break-after:auto}.guide-article .ph,.guide-article .pf{display:none}.guide-article .chap{display:flex;gap:20px;margin-bottom:25px}.guide-article .num{font:30px/1.3 Georgia;color:var(--t-a3b488);flex-shrink:0}.guide-article .num small{display:block;font:8px/1.6 sans-serif;letter-spacing:1px;max-width:90px}.guide-article .kicker{font-size:10px;color:var(--t-8f9d7c);line-height:1.6}.guide-article h1{font:28px/1.65 var(--serif);color:var(--ink);margin:8px 0 15px}.guide-article h2{font:22px/1.65 var(--serif);color:var(--t-47613b);margin:28px 0 15px}.guide-article h3{font-size:15px;color:var(--t-3f5a35);margin:20px 0 10px}.guide-article p{margin:10px 0}.guide-article .en{font:11px/1.8 Georgia;color:var(--t-9ba78b)}.guide-article .lead{font-size:14px;color:var(--t-65745c);margin-bottom:20px}.guide-article .callout{border-left:3px solid var(--t-8fa65e);background:var(--t-eef2e5);padding:15px 20px;margin:20px 0}.guide-article .callout--warn{border-color:var(--t-bb9b5c);background:var(--t-f4efe2)}.guide-article .callout--ink{background:var(--t-e5ebdd);border-color:var(--t-4e6a42)}.guide-article .lbl{font-size:10px;letter-spacing:1px;font-weight:650;color:var(--t-7f9469)}.guide-article table{width:100%;border-collapse:collapse;font-size:11px;line-height:1.9;margin:18px 0;display:block;overflow:auto}.guide-article td,.guide-article th{border-bottom:1px solid var(--t-e0e6d8);padding:10px 9px;text-align:left;min-width:50px;vertical-align:top}.guide-article th{background:var(--t-eaf0df);font-weight:600;color:var(--t-5e7550)}.guide-article a{color:var(--t-456e36);text-decoration:underline;word-break:break-word}.guide-article .n{color:var(--t-94a67d);font-family:Georgia}.guide-article ul,.guide-article ol{padding-left:23px}.guide-article li{margin:8px 0}.guide-article .lat{font:12px/1.8 ui-monospace,Consolas,monospace}.guide-article code{white-space:pre-wrap;word-break:break-word}.guide-article pre{white-space:pre-wrap;background:var(--t-eaf0df);padding:15px;font-size:11px}.guide-article .tag{font-size:10px}.guide-article .toc-row{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid var(--line)}.guide-article .cover-title,.guide-article .cover-sub{font-family:var(--serif);color:var(--ink)}.guide-article .cover-title{font-size:34px;line-height:1.6}.guide-article .cover-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media(max-width:1190px){.guide-article h1{font-size:23px}}@media(max-width:600px){.guide-article{font-size:13px;padding:20px 0}.guide-article h1{font-size:23px}.guide-article .chap{gap:12px}.guide-article .num{font-size:24px}.guide-article .num small{max-width:58px;font-size:6px}.guide-article .kicker{font-size:9px}.guide-article .en{font-size:9px}.guide-article .lead{font-size:13px}.guide-article .callout{padding:11px 13px}.guide-article table{font-size:10px}.guide-article .cover-title{font-size:28px}.guide-article .cover-grid{grid-template-columns:1fr}}@media screen and (min-width:601px){.guide-article{font-size:15px}}@media print{.guide-article{font-size:11pt;color:var(--t-222222);padding:0}.guide-article h1{font-size:22pt}.guide-article h2{font-size:16pt;break-after:avoid}.guide-article .callout{break-inside:avoid}.guide-article table{display:table;font-size:9pt}.guide-article .en{color:var(--t-666666)}.guide-article a{color:var(--t-222222)}}