:root{color-scheme:light;--paper:#f7f4ee;--card:#fffdfa;--ink:#23323c;--muted:#66737b;--accent:#0c6a80;--line:#dedbd3;--soft:#edf2f1;--reading:19px}
:root[data-reading-theme=dark]{color-scheme:dark;--paper:#15212a;--card:#1c2b35;--ink:#e5e7e5;--muted:#aab9bf;--accent:#83cdd5;--line:#364751;--soft:#233740}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:86px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.skip{position:absolute;left:12px;top:-100px}.skip:focus{top:12px;z-index:20;background:var(--card);padding:12px}.top{border-bottom:1px solid var(--line);background:var(--card);padding:17px max(20px,calc((100vw - 1180px)/2));display:flex;gap:18px;justify-content:space-between;align-items:center}.brand{color:var(--ink);font-weight:700;white-space:nowrap;letter-spacing:.1em}.brand small{display:block;font-size:10px;letter-spacing:.2em;color:var(--muted)}.top nav{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:14px}.shell{max-width:1180px;margin:auto;padding:0 26px}.article-head{max-width:840px;margin:64px auto 32px}.eyebrow{color:var(--accent);font-size:12px;letter-spacing:.2em;margin-bottom:18px}.article-head h1{font-family:"Noto Serif CJK SC","Songti SC",SimSun,serif;font-size:clamp(28px,3.4vw,44px);font-weight:700;line-height:1.5;letter-spacing:.035em;margin:0 0 24px;overflow-wrap:anywhere}.meta{color:var(--muted);font-size:14px;line-height:2}.tools{display:flex;flex-wrap:wrap;gap:9px;margin:24px 0}.tools a,.tools button{background:var(--card);color:var(--accent);border:1px solid var(--line);border-radius:7px;padding:8px 13px;font-size:13px;cursor:pointer}.notice{font-size:13px;color:var(--muted);border-left:3px solid var(--accent);padding:10px 15px;background:var(--soft);line-height:1.9}.layout{display:grid;grid-template-columns:minmax(0,810px) 230px;gap:40px;align-items:start}.reading{min-width:0;background:var(--card);border:1px solid var(--line);border-radius:9px;padding:42px 48px;margin:12px 0 44px}.prose{font-family:"Noto Serif CJK SC","Songti SC","STSong",SimSun,serif;font-size:var(--reading);line-height:2;letter-spacing:.035em;overflow-wrap:anywhere}.prose p{margin:0 0 1.15em}.prose h2{font-family:inherit;font-size:1.35em;line-height:1.7;padding-top:.5em;margin:2em 0 .9em;color:var(--ink)}.prose h3{font-size:1.13em;line-height:1.8;margin:1.5em 0 .7em}.prose blockquote{margin:1.2em 0;padding:10px 18px;background:var(--soft);border-left:3px solid var(--accent);font-size:.95em}.prose hr{border:0;border-top:1px solid var(--line);width:36%;margin:2em auto}.prose .credit{font:13px/1.9 -apple-system,BlinkMacSystemFont,"Microsoft YaHei",sans-serif;color:var(--muted)}.prose .list-item{padding-left:1.1em;text-indent:-1.1em}.toc{position:sticky;top:22px;padding:25px 0;max-height:88vh;overflow-y:auto;font-size:13px}.toc strong{color:var(--ink);font-size:14px}.toc ol{list-style:none;padding:0;margin:15px 0}.toc li{margin:0 0 9px;line-height:1.8}.toc a{display:block;color:var(--muted);border-left:2px solid var(--line);padding-left:13px}.toc a:hover,.toc a.active{color:var(--accent);border-color:var(--accent)}.toc li.sub{padding-left:12px}.mobile-toc{display:none}.figure{margin:30px 0}.figure img{width:100%;height:auto;display:block;background:white;border-radius:5px;border:1px solid var(--line)}.figure figcaption{font:12px/1.9 -apple-system,BlinkMacSystemFont,"Microsoft YaHei",sans-serif;color:var(--muted);padding-top:10px}.figure-note{font:14px/1.9 -apple-system,BlinkMacSystemFont,"Microsoft YaHei",sans-serif;color:var(--muted)}.article-end{margin-top:36px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;line-height:2;color:var(--muted)}.footer{padding:24px 20px 40px;text-align:center;color:var(--muted);font-size:12px;line-height:2}.progress{position:fixed;top:0;left:0;width:0;height:3px;background:var(--accent);z-index:50}.backtop{position:fixed;right:18px;bottom:22px;background:var(--card);border:1px solid var(--line);padding:8px 12px;border-radius:6px;font-size:13px}.catalog-head{margin:55px 0 25px;max-width:820px}.catalog-head h1{font-family:"Noto Serif CJK SC",SimSun,serif;font-size:clamp(30px,4vw,46px);margin:.3em 0}.filter{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 12px}.filter input,.filter select{background:var(--card);color:var(--ink);border:1px solid var(--line);padding:12px 14px;border-radius:7px}.filter input{flex:1;min-width:210px}.count{font-size:13px;color:var(--muted);margin:10px 0 25px}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-bottom:50px}.card{background:var(--card);border:1px solid var(--line);border-radius:9px;padding:24px}.card h2{font-family:"Noto Serif CJK SC",SimSun,serif;font-size:21px;line-height:1.6;margin:10px 0 13px}.card h2 a{color:var(--ink)}.card .tag{color:var(--accent);font-size:12px}.card p{color:var(--muted);font-size:14px;line-height:1.9;margin:0 0 15px}.card .small{font-size:12px;color:var(--muted)}[hidden]{display:none!important}
@media(min-width:1100px){.article-head{margin-left:0}}@media(max-width:1099px){.layout{display:block}.toc{display:none}.reading{max-width:840px;margin-left:auto;margin-right:auto}.mobile-toc{display:block;font-size:14px;border-block:1px solid var(--line);padding:12px 0;margin:20px 0}.mobile-toc ol{padding-left:24px;line-height:2}.mobile-toc summary{cursor:pointer;color:var(--accent)}}@media(max-width:600px){.top{padding:14px 17px;align-items:flex-start}.top nav{font-size:12px;gap:6px 12px}.brand{font-size:14px}.shell{padding:0 16px}.article-head{margin:34px auto 20px}.article-head h1{font-size:28px}.reading{padding:25px 21px;margin-top:8px}.prose{font-size:calc(var(--reading) - 1px);line-height:1.95;letter-spacing:.02em}.layout{display:block}.cards{grid-template-columns:1fr;gap:14px}.card{padding:22px}.catalog-head{margin-top:34px}.backtop{right:10px;bottom:12px;font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{body{background:white;color:black}.top,.tools,.toc,.mobile-toc,.backtop,.progress,.footer{display:none}.layout{display:block}.shell,.article-head{max-width:none;margin:0;padding:0}.reading{padding:0;border:0}.prose{font-size:12pt;line-height:1.65}.figure{break-inside:avoid}}

.prose{font-kerning:normal}.prose p,.prose blockquote{orphans:2;widows:2}.prose .list-item{padding-left:1.15em;text-indent:-1.15em}.prose blockquote{line-height:1.95}.prose .credit{font-family:inherit}.reading .figure-note{letter-spacing:0}.figure a{cursor:zoom-in}.series-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:30px 0 0;padding-top:24px;border-top:1px solid var(--line)}.series-nav a{padding:15px;border:1px solid var(--line);border-radius:7px;font-size:14px;line-height:1.8;background:var(--soft)}.series-nav small{display:block;color:var(--muted);font-size:11px;margin-bottom:5px}.reading-paths{display:flex;gap:9px;flex-wrap:wrap;margin:22px 0}.reading-paths a{font-size:13px;padding:7px 12px;border:1px solid var(--line);border-radius:24px;background:var(--card)}.kind-tag{display:inline-block;padding:1px 7px;background:var(--soft);border-radius:4px}.source-note{font-size:13px;color:var(--muted);line-height:1.9}.image-dialog{border:1px solid var(--line);border-radius:10px;padding:12px;background:var(--card);color:var(--ink);max-width:96vw;max-height:95vh;width:1050px}.image-dialog::backdrop{background:rgba(0,0,0,.78)}.image-dialog .dialog-bar{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:0 0 10px}.image-dialog button{padding:7px 12px;color:var(--ink);background:var(--soft);border:1px solid var(--line);border-radius:5px;cursor:pointer}.image-dialog .image-window{overflow:auto;max-height:80vh;text-align:center}.image-dialog img{max-width:100%;height:auto;background:white}.image-dialog.is-zoomed img{max-width:none;width:1600px;cursor:zoom-out}.source-details{padding:12px 0;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}@media(max-width:600px){.series-nav{grid-template-columns:1fr}.series-nav a{padding:12px}.reading-paths{gap:7px}.source-details{font-size:12px}}@media print{.series-nav,.image-dialog,.reading-paths{display:none}}

.prose > :first-child{margin-top:0;padding-top:0}